WLCP-36WST-S3

WLCP-36WST-S3 

Lighting Control Panel, 36 Relays 

c/w Time/Astro/Photo Controller 

Instruction Manual 

R


Contents 

Contents 

One Line Diagram .................................................................................................................. 1 

Connection Diagram ............................................................................................................... 2 

Interface List ......................................................................................................................... 3 

Inputs by Panel ...................................................................................................................... 4 

Relay Panels List .................................................................................................................... 5 

Panel Schedule ...................................................................................................................... 6 

WTP-4408 CONTROLLER 

Introduction ........................................................................................................................... 7 

Description ............................................................................................................................ 9 

Mounting ............................................................................................................................. 10 

Setup .................................................................................................................................. 11 

Programming ....................................................................................................................... 12 

Astronomic Settings ............................................................................................................ 39 

Event Schedules .................................................................................................................. 41 

WRS-2224 PROGRAMMABLE RELAY SCANNER 

Introduction ......................................................................................................................... 43 

Parts & Dimensions .............................................................................................................. 44 

Specifications ...................................................................................................................... 45 

Switch Inputs ....................................................................................................................... 46 

Programming ....................................................................................................................... 47 

Connections ........................................................................................................................ 52 

Troubleshooting ................................................................................................................... 53 

2-WIRE HID RELAYS 

Technical Data ..................................................................................................................... 54 

PWEX RELAY PANEL 


TRANSFORMER 


Components WLCP-36WST-S3 1.1 

lighting controls


One Line Diagram 


page 1 

lighting controls


Connection Diagram 


page 2 

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Interface List 


page 3 

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Inputs by Panel 


page 4 

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Relay Panels List 


page 5 

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Panel Schedule 


page 6 

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WTP-4408 Controller 

Introduction 

WTP-4408 Eight Output Time/Photo Controller 

WPS-5527K 

Photo Sensor 

(optional) 

Thu 15, Nov 2007 

2 : 45 : 33 pm 

Light Level: 110fc 

SETUP SCHED MANU INFO 

N 

12 

Sunny 

Skylight/ 

Windows 

Sensor 

Cloudy 

Day 

Late Night 

9 

12 

3 

AM 

6 

9 

9 

3 

PM 

6 

12 

3 

PM 

6 

9 

12 

3 

PM 

6 

PHOTO BASED CONTROLS 

 

 

The optional WPS-5527K Remote Sensor is used to 

monitor the true measured ambient light level and is 

ideal for situations requiring accurate light level 

switching, such as skylit areas or exterior signs. 

Each of the WTP-4408's eight outputs can be 

programmed to switch at specific, user-adjustable light 

levels. Different light levels can be set for each output. 

ASTRO BASED CONTROLS 

 

Sunset 

Sunrise 

Exterior lights can be switched ON and OFF 

astronomically. Astronomic control in association with 

time based control offers the ideal combination of 

convenience and savings for your facility. 

TIME BASED CONTROLS 

 

 

Time-based control systems are the most cost 

effective method of ensuring that interior lights 

are OFF when the facility is not occupied. 

Multi-channel time clocks offer the designer 

the convenience of creating unique schedules 

for different areas. Different time-based OFF 

sweeps can be provided for general office 

areas, corridors, common areas, lobbies or 

different tenant spaces. 


page 7 

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Introduction 

WPS-5527K Remote 

Sensor Head 

(optional) 

Point Sensor to Northern sky for 

the most consistent readings. 

Connect Sensor, if used, to only 

one Photo Controller. 

N 

WTP-4408 Photo/Time Controller 

Easy to program with built-in display and membrane keypad. 

Eight independent outputs for switching relays directly or 

groups of relays via scanners. 

Manual override. 

Automatic Daylight Savings. 

64 Holiday dates. 

Manual override. 

Astronomic and sentry switch options. 

Accurate switching at specific light levels for each output when 

using remote sensor. Range: 0-6,000 footcandles. 

Thu 15, Nov 2007 

2 : 45 : 33 pm 



2-Wire LED Switch 

LED indicator push button switch for 

Douglas 2-wire relays and switch inputs. 

Can operate in parallel with a WTP-4408 

output. 

Can provide convenient manual control for 

each output. 

LEDs show status of the connected relay or 

input. Red LED indicates ON and green LED 

indicates OFF. 

WPS-5527K 

WR-8501 

WTP-4408 

WT2-Wire HID Relays (Panel Mounted) 

A WTP-4408 output can directly control Douglas panel-mounted 

2-wire relays. (WR-6161, WR-6162 or WR-6172) 

Each output can directly control up to 4 relays. 

The relays are suitable for all types of lighting 

loads including capacitor-corrected HID ballasts. 

2-wire latching relay technology. 

Manual override lever & ON/OFF indicator built 

into each relay. 

Operable with remote switches. 

WR-6161 

Relay 

Panel 


page 8 

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Description 

LCD Display 

In normal operating mode, shows the 

present time and (if sensor used) light level 

reading. 

In other modes, shows various prompts to 

guide in viewing and editing programs. 

WPS-5527K 

Remote Sensor 

Point to the Northern 

sky for the most 

consistent readings. 

Connect sensor to 

only one Controller. 

N 

Wiring 

Wire length max: 

500'(150m). 

Use two #18AWG 

unshielded wires. 

Sensor 

Inputs 

Thu 15, Nov 2007 

2 : 45 : 33 pm 



Escape 

Button 

Power 

Indicator 

Membrane Keypad 

Press keys to set time and 

enter programs and 

Power 

Inputs 

WTP-4408 General Description 

Electronic 365-Day Astronomic Time/Photo Controller for switching 

Douglas 2-wire relays and scanners. 

Fits in Douglas relay Panels on center DIN rail. 

Uses an LCD display and membrane keypad for programming. 

Optional WPS-5527K Photo Sensor permits photocell control. Each 

output can be programmed to have a unique light level switching point. 

Each output is programmed to switch ON and OFF when an event 

occurs. Events can be: 

Time Based: Lights are turned ON and OFF at specific times of day. 

Astro Based: Light are turned ON and OFF according to the position of 

the sun in the sky. 

Photo Based: Lights are turned ON and OFF depending to measured 

light level (requires WPS-5527K Photo Sensor). 

Combination: Lights are turned ON by Photo or Astronomic 

measurement and OFF by time. Conversely, lights can be 

switched ON by time and OFF by Photo or Astronomic. 

Menu 

Buttons 

Clear 

Button 

Outputs 

8 outputs 

designed to 

switch 

Douglas 2- 

wire relays or 

scanners. 

Programming the WTP-4408 

Use the membrane key pad and the LCD graphic display. Prompts 

appear on the display to guide you in programming the unit. 

Any of the relay outputs can be programmed to have (including 

combinations of each): 

-ON/OFF timed events 

-Sentry 

-Astronomical 

-Photometric. 

Up to 900 events can be scheduled in a week. 

Set any scheduled event for any output to run on any day of the week 

(Su/Mon/Tue/Wed/Th/Fri/Sat) or on any specific date or Holiday. 

64 Holiday dates are available. 

In the event of power loss, the data in the Controller's memory is 

retained. Programming and Setup features are retained indefinitely, and 

time-of-day setting is retained for 72 hours. 

Specifications 

Inputs 

Power: 24VAC/100mA. Class 2 low voltage device. 

Power rating does not include power for switching relays or scanners. 

Connect switches in parallel with Controller outputs for remote override 

switching. 

Optional WPS-5527K Photo Sensor. Range: 0 to 6,000 footcandles. 

Remote mount. 

Outputs 

Eight timer/photo controlled outputs for Douglas relays and scanners. 

Maximum number of relays per output: 4. Connect with #18 AWG wire. 

Maximum length for relay control is 500' (150m). 

Maximum number of scanners per output: 10. Connect with #18 AWG 

wire. Maximum length for scanner control is 2000' (600m). 

Sensor 

A WPS-5527K Remote Photo Sensor can connect to the Controller to 

provide accurate light level measurements. The WPS-5527K has a 

range of 0 to 6,000 footcandles +/- 5%. 

Each output can have a unique set of light level switching points to 

satisfy different requirements. A dusk-to-dawn typical setting would be 

20fc high level (OFF point) and a 5fc low level (ON point). An interior 

skylight example could be 1000fc (OFF point) and 700fc (ON point). 

Environment 

Indoors, stationary non-vibrating, non-corrosive atmosphere and noncondensing 

humidity. 

Ambient operating temperature: +32 0 F to +140 0 F (0 0 C to +60 0 C). 


page 9 

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Mounting 

Mounting/Installation 


The WTP-4408 Photo/Timer is mounted inside the relay control panel 

on 35mm DIN rail. 

Best to locate the panel in an area that is accessible for programming 

the WTP-4408. 

Installation environment: indoors, stationary, non-vibrating, noncorrossive 

atmosphere and non-condensing humidity. 

Ambient operating temperature: +32 0 F to +140 0 F (0 0 C to +60 0 C). 

Optional WPS-5527K Sensor Head 

Do not mount the sensor where artificial light shines directly on it. 

For best results, mount the sensor pointing to the Northern sky. 

The WPS-5527K Sensor is waterproof and able to withstand harsh 

climate. However, when possible, mount the sensor either indoors 

pointing outward or in a sheltered area. The sensor's measurements 

will be less affected by dirt, ice or snow build-up. If mounting 

outdoors, try to shelter the sensor from the elements. For example, 

mount the sensor on the underside of the junction box (as shown in 

INSERT A). 

The sensor has a plastic mounting nipple that can be threaded to a 

1/2" pipe thread. A mounting nut is also supplied for mounting to a 

1/2" knockout. 

Junction Box 

N 

Sensor 

Wall 

6.5" 

(165) 

3.25" 

(83) 

12" wire 

(#18 AWG) 

9 6 2 " " & 6 E A 2 D J + J H A H 

Esc 

Power 

A B C D 

1 2 3 

Mo 

4 5 6 

Th 

7 8 9 

Su 

0 

Wh 

1 

Output 2 

Output 3 

Output 4 

Directions 

• Buttons A, B, C & D select options shown at Output 5 

the bottom of the display. Follow prompts 

which appears on the display to set up the 

unit and/or view/edit programs 

Output 6 

• Use only to control Douglas Relays or Relayt 

A Scanners. 

Output 7 

• For more information rfer to "Applications 

B & Directions" booklet or visit 

Output 8 

www.DouglasLighting Control.com 

White 

Optional WPS-5527 

Photo Sensor 

lighting controls Blue 

Tu 

Fr 

We 

Sa 

WPS-5527K 

Sensor Head 

WTP-4408 

Controller 

24VAC 

Clr 

Power for 

Outputs 

INSERT A 

35mm DIN 

Rail Mounting 

4.0" 

(102) 

1.75" 

(45) 


page 10 

lighting controls

• Buttons A, B, C & D select options shown at 

the bottom of the display. Follow prompts 

which appears on the display to set up the 

unit and/or view/edit programs 

• Use only to control Douglas Relays or Relayt 

Scanners. 

• For more information rfer to "Applications 

& Directions" booklet or visit 

www.DouglasLighting Control.com 



Setup 

Planning & Initial Setup 

1) Fill out a working copy of the event & relay schedules. 

This will help guide the planning process. 

2) From the filled-in relay panel schedule determine which 

relays are connected to the same local low voltage 

switch and/or have the identical schedule. Connect 

these relays to the same relay output. 

CAUTION: Ensure that no more than 4 relays are 

connected together. A scanner will be required to switch 

larger quanities of relays simultaneously. Ensure that 

outputs are not connected together. 

3) Use the controller's manual (MANU) override mode to 

verify that the correct relay groups are being switched by 

the correct relay output. 

4) Access the SETUP menus to ensure if any of the 

following settings should be modified: Daylight Savings, 

Astro, Photocell and Sentry options. 

5) For Astro location information refer to Appendix A for 

latitude, longitude & time zone information for a variety 

of North American Cities. Do not use the Astro feature 

for latitudes above 55°N. 

6) Access the schedule (SCHED) menu to enter the 

scheduled events using the completed event schedule. 

See the section titled "SCHEDULING" for details. 

Based upon the completed panel schedule an 

Event Schedule can created for each relay. 

EVENT SCHEDULE 

Output #1 - Event Sequence 

Wall Pack 

A-11 

First employee starts at 7:30AM. Turns the Lobby & Corridor lights ON using the local low voltage switch located in the Lobby. All 

other lights are turned ON by local switches. 

Last employee leaves at 6:45PM. Turn all interior lights OFF (7:00PM) after last departure. 

Repeat OFF sweeps ensure that the lights are turned OFF (9PM, 11PM, 1AM, 3AM & 5AM) in case they are turned ON by a local switch. 

OUTPUT #1 

AREA CONTROLLED: Interior Lighting 

TIME AM/PM COMMENTS ACTION HI fc LOW fc M T W TH F SA SU 

7:00 

9:00 

11:00 

1:00 

3:00 

5:00 

PM 

PM 

PM 

AM 

AM 

AM 

End of the work day lights turn OFF 

Repeat OFF sweep 





OFF 

OFF 

OFF 

OFF 

OFF 

OFF 


The Photometric control feature is enabled at 5:00AM. The WTP-4408 will automatically check the measured light level from the 

sensor head and compare this to the Hi & Low setpoints. • If the measured light level is above Hi setpoint of 20fc, the Security lights 

will switch OFF. • If the measured light level is in between the Hi (20fc) & Low (5fc) no action will occur. • If the measured light level is 

below the Low setpoint of 5fc, the Security lights will switch ON. 

Throughout the course of the day the Security lights will switch ON at dusk and OFF at dawn. 

OUTPUT #2 

AREA CONTROLLED: Security 


5:00 AM Photo operation enabled PHOTO ENB 20 5 


The Photometric control feature is enabled at 5:00AM. The WTP-4408 will automatically check the measured light level from the 

sensor head and compare this to the Hi & Low setpoints. • If the measured light level is above Hi setpoint of 20fc, the Security lights 

will switch OFF. • If the measured light level is in between the Hi (20fc) & Low (5fc) no action will occur. • If the measured light level 

is below the Low setpoint of 5fc, the Parking Lot lights will switch ON. 

Photometric control feature is disabled by an OFF command at 11:00PM. The Parking Lot & Shipping/Receiving lights will also be 

switched OFF. 

OUTPUT #3 

AREA CONTROLLED: Parking Lot & Shipping/Receiving Bay 


5:00 

11:00 

AM 

PM 

Photo operation enabled 

Parking Lot lights turned OFF. 

Photo operation disabled. 

PHOTO ENB 

OFF 

20 5 

A-5c A-3c A-5c A-3c 

A-1d 

A-1d 

Sw 

a 

B B E ? A 

A-7a 

LIGHTING FLOOR PLAN 

Wall Pack 

A-11 

/ A A H = B B E ? A ) H A = 

A-3c A-5c A-3c A-5c 

+ H H E @ H 

A-1d 

Sw c 

Sw Sw 

B B E ? A b d 

Wall Pack 

A-11 

A-7b 

RELAY PANEL: 

A-1d 

Sw 

Grp 

Wall Pack 

A-11 

A-1d 

A-1d 

> > O 

A-1d 

Wall Pack 

A-11 

Signage 

A-9 

XYZ Company Office 

Pole Light 

A-13 

Pole Light 

A-13 

2 = H E C J 

 

A Panel Schedule can be created based on the 

Lighting Floor Plan. The schedule will indicate the 

level of control required for each relay plus circuit & 

area of control description. 

LCP-B 

Circuit Relay Interface Local Master Timer 

Load Description 

Number Number O/P Number Switch Switch Control 

Lobby & Corridor 

B-1a 1 PRS1.1 Sw-a TP-1 

General Office Area 

B-3b 2 PRS1.2 Sw-b Sw-Int TP-1 


B-3c 3 PRS1.3 Sw-c Sw-Int TP-1 

Office #1 

B-5d 4 PRS1.4 Sw-d 

TP-1 

Office #2 

B-5e 5 PRS1.5 Sw-e 

TP-1 

Boardroom 

B-7f 6 PRS1.6 Sw-f 

TP-1 

Office #3 

B-9g 7 PRS1.7 Sw-g TP-1 

Office #4 

B-9h 8 PRS1.8 Sw-h 

TP-1 

Production/Office 

B-11j 9 PRS1.9 Sw-j 

TP-1 

Production/Assembly 

B-13k 10 PRS1.10 Sw-k Sw-Int TP-1 


B-13m 11 PRS1.11 Sw-m Sw-Int TP-1 

Warehouse 

B-15n 12 PRS1.12 Sw-n Sw-Int TP-1 

Women's Washroom 

B-17p 13 PRS1.13 Sw-p 

TP-1 

Men's Washroom 

B-17q 14 PRS1.14 Sw-q 

TP-1 

Security Lighting (Wall Pack) B-19 15 PRS1.15 

Sw-Ext 

Parking Lot Lighting (Pole Light) B-21 16 PRS1.16 5 w-Ext TP-3 

Signage 

B-23 17 PRS1.17 5 w-Ext 

Pylon Sign 

B-25 18 PRS1.18 Sw-Ext TP-5 

Shipping/Receiving Bay B-27 19 PRS1.19 

Sw-Ext TP-3 

Spare 

20 PRS1.20 

Spare 

21 PRS1.21 

Spare 

22 PRS1.22 

Spare 

23 PRS1.23 

Spare 24 PRS1.24 

WTP-4408 CONTROLLER 

Enter the Event Schedules 

into the WTP-4408 memory. 

The schedules will operate 

once all events are saved & 

entered into memory. 

PANEL SCHEDULE 

9 6 2 " " & 6 E A 2 D J + J H A H 

Thurs 15, Nov 2007 

8:30:03 AM 



Esc 

Power 

A 

B 

Optional WPS-5527 

Photo Sensor 

A B C D 

1 

2 3 

6 K 

4 5 6 

6 D 

. H 

7 8 9 

5 K 

0 

Directions 

Photocell 

Control 

9 A 

5 = 

TP-2 

TP-3 

TP-3 

Clr 

2 M A H B H 

K J F K J I 

Wh 

1 

Output 2 

Output 3 

Output 4 

Output 5 

Output 6 

Output 7 

Output 8 

White 

lighting controls Blue 

24VAC 

Astro 

Control 

TP-4 

TP-5 


page 11 

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Menu Tree 


Main Menu 

Programming 

Setup Menu 

Sched Menu 

(Schedule) 

Manu Menu 

(Manual) 

Info Menu 

(Information) 

(a) Adjust Date/Time 

(b) Daylight Savings 

(a) View/Edit Schedules 

(b) View/Edit Holidays 

(a) Override Outputs 

(b) Phototest 3s Mode 

(a) Memory Status 

(b) Sunset/Sunrise Time 

(c) Astro Settings 

(a) ON/OFF 

(c) View Event Log 

(b) Adjust Location 

(c) Adjust Dawn Offset 

(d) Adjust Dusk Offset 

(d) Photo Settings 

(e) Sentry Options 

(f) Clear Memory 

(a) Clear Programs 

(b) Clear Holidays 

(c) Clear Logs 

(d) Factory Defaults 

Main Menu Screen Layout 

Holiday Mode 

Indicates the WTP-4408 is 

currently operating a Holiday schedule 

Astro Enable 

Astro scheduled event is currently enabled 

Light Level Indicator 

Displays the current measured light 

level from the photo sensor. Optional 

photo sensor (WPS-5527) must be 

connected to access this feature 

Thurs 15, Nov 2007 

0 8:30:03 AM 



A B C D 

Date & Time 

Current Date & Time are displayed 

Photo Enable 

Photo scheduled event is currently enabled 

Sentry Enable 

Sentry option is currently enabled 

for one of the relay outputs 

Daylight Savings 

Indicates the WTP-4408 is 

in daylight savings mode 

Menu Bar & Menu Buttons 

Displays various menus/options 

Under normal operating conditions the Main Menu Screen will always 

be visible. The various icons seen on the screen denote the status of 

a specific feature. Descriptions of all icons are shown above. 

After 5 minutes of inactivity in a Sub-Menu, the display will return back 

to the Main Menu. 

When power is lost, all schedules & settings are retained regardless of 

how long the power is absent. The time setting will be kept for a 

minimum of 72 hours. 

■ All four Sub-Menus are accessible from the Main Menu by pressing 

the corresponding menu buttons: A, B, C or D. 


page 12 

Sub-Menus 

• SETUP (A): Setting basic parameters 

• SCHED (B): Schedule programming 

• MANU (C): Manual output override, sensor test mode 

• INFO (D): Display of the last 100 events performed by 

the controller and other information 

lighting controls



Programming 

Setup Menu 

Main Menu 

Setup Menu 

Sched Menu 

(Schedule) 

Manu Menu 

(Manual) 

Info Menu 

(Information) 










(a) ON/OFF 













page 13 

lighting controls



Programming 

Setup Summary 

The Setup option configures most of the general settings. The following is 

an overview of the various Setup Sub-Menus & features that are adjustable. 

1 Accessing Setup Mode 

2 

From the Main Menu 

press the A button to 

access the Setup Mode 

option. 

Navigating the Setup 

Sub-Menus 

Use the A & B buttons to 

scroll through the various 

Sub-Menus within the 

Setup Mode. 

Press the D button to 

access the highlighted 

Sub-Menu. 

3 Sub-Menus 

Fri 16, Nov 2007 

1:00:03 AM 


A B C D 

SETUP MENU 



1 OF 6 

The Setup Menu consists of 6 Sub-Menus. The following is a description of 

each. 

OK 

A B D 

Sentry Switching - allows for any 

of the 8 relay outputs to be set 

up for sentry style switching. 

Default: None of the 8 relay 

outputs are set up for Sentry 

Switch control. 

Clear Memory - consists of 4 

sub menus that clear specific 

portions of memory: 

• Clear Normal Schedules 

• Clear Holiday Schedules 

• Clear Logs 

• Factory Reset: 

Restores factory defaults, 

clearing all types of memory 

including schedules & logs. 

Default: None. 

SETUP MENU 



SETUP MENU 



5 OF 6 

OK 

A B C D 

6 OF 6 

OK 

A B C D 

Adjust Date/Time - allows Date 

& Time to be adjusted. 

Default: January 12, 2001. 

SETUP MENU 

1 OF 6 



OK 

A B D 

Daylight Savings - allows for 

enabling & disabling of 

Daylight Savings. Also allows 

for selection of when. 

Default: Enabled or ON. 

SETUP MENU 



2 OF 6 

OK 

A B D 

Astro Settings - allows for 

enabling and disabling of 

Astronomic control option. 

Default: Disabled or OFF. 

Photo Settings - allows for 

enabling and disabling of 

Photocell control option. 

Default: Disabled or OFF. 

SETUP MENU 



SETUP MENU 



3 OF 6 

OK 

A B D 

4 OF 6 

OK 

A B C D 


page 14 

lighting controls



Programming 

Setup: Date & Time 

The Date & Time Setup Sub-Menu lets the user easily modify the 

current date & time or re-enter a new date & time. 

The WTP-4408 factory default Date & Time is Friday, January 12, 

2001 @ 1:00AM. The default Date & Time should be modified prior to 

normal use of the unit. 

During the course of entering or modifying the Date & Time, the user 

should be aware to go through all data entry screens, even though 

some entries won't need modification. Failure to do so will result in all 

modified data being lost & not saved to memory. The WTP-4408 will 

default to the last saved entry. 

While entering the Date & Time, if the user presses the ESC button or 

if there is a power failure, all the currently entered data will not be 

saved. The WTP-4408 will default to the last saved entry. 

The time is entered in AM/PM format. The WTP-4408 will 

automatically calculate the day of the week. 

From the Setup Menu select 

Sub-Menu (a) to adjust the 

date and time. 

SETUP MENU 



1 OF 6 

OK 

NOTE: 

The user MUST go 

through each data 

entry screen, even if 

some entries may not 

need modifying. 

This will ensure all 

newly entered data will 

be saved to memory. 

EDIT DATE MODE 

Please Enter: 

Day: 12 


Please Enter: 

Day: 15 

NO Correct ? 

A 


Please Enter: 

Hour: 01 

OK 

D 

YES 

D 

OK 

D 

1 Date/Time Adjustment 

Follow the on-screen prompts 

to adjust the date and time. 

The Menu Bar will help you 

navigate through each of the 

screens. Press the appropriate 

Menu buttons when prompted. 

A B D 

Year: 2006 

Month: 1 (Jan) 

Day: 12 

Time: 1:01AM 

EDIT 

D 


Please Enter: 

Hour: 08 

NO Correct ? 

A 


Please Enter: 

Min: 00 

YES 

D 

OK 

When a numeric entry is 

blinking use the number pad 

to modify the entry. 

Whenever the current entry 

is modified, the user is 

prompted to verify if the 

newly entered entry is 

correct. 

The following is a continuation 

of the screens the user will 

encounter during the course of 

setting up the date & time. 

Note that this screen will only 

be displayed if the current entry 

has been modified. 


Please Enter: 

Year: 2006 


Please Enter: 

Year: 2007 

NO Correct ? 

A 


Please Enter: 

Month: 01 


Please Enter: 

Month: 02 

NO Correct ? 

OK 

D 

YES 

D 

OK 

D 

YES 

The WTP-4408 Time is kept 

in an AM/PM format, so be 

sure to adjust accordingly. 

Press the A button for AM or 

the B button for PM. 

The Display automatically 

returns to the Main Menu and 

displays the newly entered 

Date & Time. 


Please Enter: 

Min: 30 

NO Correct ? 

A 


Please Enter: 

AM /PM 

A 

B 

Thu 15, Feb 2007 

8:30:03 AM 

D 

YES 

D 

OK 

D 


A B C D 


page 15 

lighting controls



Programming 

Setup: Daylight Savings 

The Daylight Savings Sub-Menu lets the user enable or disable the 

Daylight Savings feature. When enabled the WTP-4408 will 

automatically adjust for Daylight Savings. 

The Daylight Savings option is enabled as a factory default. The 

default setting should be disabled if your area doesn't have Daylight 

Savings. 

As of 2007, the WTP-4408 is set up so that conversion to Daylight 

Savings will occur on the 2nd Monday of March and the 1st Sunday of 

November. For prior versions of the WTP-4408, the conversion dates 

are the 1st Sunday in April and the last Sunday in October. The user 

can change the conversion days if desired. 

If the user chooses to disable Daylight Savings, the display 

automatically returns to the Setup Menu and saves the disable setting 

to memory. 

Pressing the ESC button on 

the numeric keypad will cause 

all modified entries to revert 

to their orginal state and 

return the WTP-4408 to the 

Setup Menu. 

The following is a continuation of 

the screens the user will encounter 

during the course of setting the 

Daylight Savings feature. 

SETUP MENU 



Esc 

2 OF 6 

OK 

A B D 


option (b) to adjust Daylight 

Savings. 

SETUP MENU 



2 OF 6 

OK 

A B D 


toggle to the month. Select 

the month by pressing the C 

button. 

EDIT DAYLIGHT SAVINGS 

STANDARD --> DAYLIGHT 

2nd SUNDAY in MAR 

OK 

A B C D 

1 Daylight Savings Adjustment 

Follow the screen prompts 

to turn Daylight Savings ON 

or OFF, using the A & B 

buttons. 

DAYLIGHT SAVINGS 

A 

ON / OFF 

B 

OK 

D 

By repeatedly pressing the 

D button, the user can view 

most of these screens 

without editing anything, 

return to the Setup Menu 

and save the last setting to 

memory. 


DAYLIGHT --> STANDARD 

1st SUNDAY in NOV 

OK 

A B C D 

The next screen shows the 

current date when Daylight 

Savings will occur. Using the 

appropriate menu buttons the 

user can adjust the week & 

month that Daylight Savings 

will occur. 

Press the A & B buttons to 

adjust the week Daylight 

Savings is to occur. The 

options are 1st, 2nd, 3rd, 

4th & last. 


STANDARD --> DAYLIGHT 

2nd SUNDAY in MAR 

OK 

A B C D 

The Main Menu will display 

the Daylight Savings icon 

whenever the Daylight 

Savings Mode is in effect. 

Thu 15, Feb 2007 

1:00:03 AM 


A B C D 

Press the C button to toggle 

between adjusting the week & 

the month. 


proceed to the next screen. 


page 16 

lighting controls



Programming 

Setup: Astro Settings 

The Astro Settings Sub-Menu lets the user enable or disable the 

Astronomical feature. When this feature is enabled, the WTP-4408 can 

automatically calculate dusk to dawn times throughout the course of 

the year and use these times to switch loads ON and/or OFF. 

The Astro feature factory default is "disabled". This setting should be 

changed to "enabled" if there will be schedules using dusk and dawn 

times. 

The latitude, longitude and the time zone must be entered for the 

WTP-4408 to automatically calculate the dawn and dusk times. Then, 

the schedules that include the Astro commands will switch ON at dusk 

and OFF at dawn. 

The switching times can be offset to occur before or after the 

calculated dawn and dusk time. The offset can be adjusted between a 

range of +180 minutes to -180 minutes. The default is 0 minutes 

offset for both dawn and dusk. 

A negative offset will result in lights switching ON before dusk or OFF 

before dawn. Positive offset has the opposite effect, lights switching 

after dusk and after dawn. 

Refer to the Scheduling portion of this manual for a detailed description 

of implementing and applying the Astro feature. 


option (c) to adjust the Astro 

Settings. 

1 Astro Online/Offline 

Follow the screen prompts to 

enable or disable the Astro 

Feature. Use the A & B 

buttons to turn the Astro 

feature ON or OFF. 

SETUP MENU 



3 OF 6 

OK 

A B D 

ASTRONOMIC GLOBAL 

A 

ON / OFF 

B 

OK 

D 

The WTP-4408 is designed for use below 55°N Latitude and within 

North American Time Zones. 

Refer to Appendix A on pages 39-40 for a listing of North American Cities 

with their respective latitude, longitude & time zone. 

Use the number pad to enter the 

latitude & press the C button to 

change from north and south. 

Note: South refers to locations 

south of the equator. 

ASTRO-LOCATION SETUP 

ENTER YOUR LATITUDE: 

N 43 deg LAT 

N/S 

CAUTION: Do not enter latitude values greater than 55°N. 

The controller may not operate properly. 

Use the number pads to enter 

the longitude. pPress the C 

button to change between 

east and west. 


scroll through the list of 

available time zones to make 

the appropriate time zone 

selection. 

Press the D button to save the 

time zone selection and return to 

the Astro Setup Sub-Menu. 

C 

ASTRO-LOCATION SETUP 

ENTER YOUR LONGITUDE: 

W 118 deg LONG 

E/W 

C 

TIME ZONE SETUP 

SELECT YOUR TIME ZONE 

 

OK 

D 

OK 

D 

OK 

A B D 

If OFF is selected, the screen 

will automatically return to 

the Setup Menu. 

2 Astro Location Setup 

From the Astro Setup Sub- 

Menu select option (c), by 

scrolling with the A and B 

buttons, to adjust dawn 

offset time. 

ASTRO SETUP 



A 

B 

3 OF 4 

OK 



screens within Astro Setup. 



screen. 

ASTRO SETUP 

(a) ON/OFF 


1 OF 4 

OK 

A B D 

Use the number pads to enter 

the offset value. Press the C 


positive and negative offset. 

ASTRO-OFFSET SETUP 

Dawn Offset: +000 min 

LIMIT (-180min TO +180min) 

+/- 

C 

OK 

D 

From Astro Setup, select 

screen (b), using the A and B 

buttons, to enter location 

information such as latitude, 

longitude & time zone. 

ASTRO SETUP 

(a) ON/OFF 


2 OF 4 

OK 

A B D 

A negative offset will result in 

loads switching ON before 

dusk and OFF before dawn. 

A positive offset will result in 

loads switching ON after dusk 

and OFF after dawn. 


page 17 

lighting controls



Programming 

Setup: Astro Settings (continued) 

From the Astro Setup Sub- 

Menu select option (d), using 

the A and B buttons, to adjust 

dusk offset time. 

The procedure for adusting 

the dusk offset is the same as 

for the dawn offset: use the 

number pads to enter the 

offset value; press the C 


positive and negative offset. 

ASTRO SETUP 



4 OF 4 

OK 

A B D 

ASTRO-OFFSET SETUP 

Dusk Offset: +000 min 

LIMIT (-180min TO +180min) 

+/- 

C 

OK 

Setup: Photometric Control 

The Photo Settings Sub-Menu lets the user enable or disable the 

Photometric feature. When this feature is enabled and a WPS-5527K 

Photo Sensor is connected, the WTP-4408 will receive light level 

information from the sensor head. These readings can switch loads 

ON and/or OFF, depending on the setpoints selected. 

When installing the sensor, best results will be obtained by pointing the 

sensor to the northern sky. 

Each output can have a unique pair of light Set Points. Switching will 

occur only when (a) the light level passes above the the high Set Point 

(switches OFF) or (b) the light level passes below the low Set Point 

(switches ON). 

Refer to the Scheduling portion of this manual for a detailed description 

of implementing and applying the Photo feature after it is enabled. 

Press the Escape button on 

the number pad to save any 

modifications made with the 

Astro Setup Sub-Menu and 

return to the Setup Menu. 

- I ? 

! 

" # $ 

% & ' 

 

+ H 

Number 

Pad 

From the Setup Menu 

select option (d), using the 

A and B buttons, to enable 

Photo Settings. 

1 Photo Online/Offline 

SETUP MENU 



4 OF 6 

OK 

A B D 

The Main Menu will display 

the Astro Enable Icon when an 

Astronomic Schedule is 

enabled. 

SETUP MENU 



Fri 12, Jan 2001 

1:00:03 AM 

3 OF 6 

OK 

A B D 


Follow the prompts to turn 

the Photo feature ON or 

OFF, using the A and B 

buttons. 

After enabling Photo 

Control, press the D 

button to return to the 

Setup Menu. 

PHOTO-CONTROL GLOBAL 

A 

ON / OFF 

B 

OK 

D 

A B C D 

Upon returning to the 

Main Menu, the Photo 

Enable Icon will be 

displayed. The Main Menu 

will also display the 

current light level reading 

from the sensor head. 

Fri 12, Jan 2001 

1:12:38 AM 

Light Level: 200 fc 


A B C D 

If a Photo Sensor is not 

connected to the 

Controller, the Main Menu 

will display 'Photohead 

Offline'. 

Thu 15, Feb 2007 

1:12:38 AM 

Photohead Offline 


A B C D 


page 18 

lighting controls



Programming 

Setup: Sentry Control 

The outputs on the WTP-4408 can be set to provide a pulsed OFF 

signal for Sentry Switch Control. 

The factory default for the WTP-4408 is Sentry Switch Control 

disabled. 

WHAT IS SENTRY SWITCH CONTROL? 

Sentry switches are often used in retrofit applications to provide 

automated lighting control. Sentry Switches control the line voltage 

current (120V or 277V) to the new fixture. Whenever the power is 

interrupted for longer than 5 seconds, the Sentry Switch resets itself to 

OFF. When power is returned back ON, the fixture remains OFF 

because the Sentry Switch has reset to OFF. Occupants can then turn 

lights back ON by activating the Sentry Switch. 

Setup: Clear Memory 

The Clear Memory option has four Sub-Menus for clearing various 

portions of the WTP-4408 memory while leaving the others unaffected. 

The Clear Memory Sub-Menus include: 

Clear Programs: Clears all scheduled events, excluding holiday 

events, for all outputs. 

Clear Holidays: Clears all holiday dates and schedules for all 

outputs. 

Clear Logs: Clears all stored events logs from the WTP- 

4408 automatic event logger. 

Factory Defaults: Clears all stored data from memory and 

restores all default settings. 

CAUTION: Outputs that are programmed for other forms of switching 

such as Astronomic Control or Photo Control should NOT be 

programmed for Sentry Control. 

Only use Sentry Control in conjunction with timed OFF schedules. 

CAUTION: Be careful to understand the function of each of the 

four Sub- Menus prior to erasing any portion of memory. 

Once data has been erased from memory, there is no recovery 

mechanism to retrieve it. 


option (e), using the A and B 

buttons, to enable Sentry 

Control and adjust the Sentry 

settings. 

SETUP MENU 



5 OF 6 

OK 

A B D 


option (f), using the A and B 

buttons, to acess the Clear 

Memory Sub-Menus. 

SETUP MENU 



6 OF 6 

OK 

A B D 

1 Clearing Programs 

1 Sentry Control Setup 

Use the Number Keys (1-8) to 

select relay outputs for Sentry 

control. 

A checkmark indicates a relay 

output has been selected to 

have the Sentry control OFF 

pulse. 

Press the D button to save to 

memory and return to the 

Setup Menu. 

Whenever any output is 

enabled for Sentry Control, the 

Main Menu will display the 

Sentry Enable Icon. 

- I ? 

! 

" # $ 

% & ' 

SENTRY OUTPUTS 

S 1 2 3 4 5 6 7 8 

USE NUMBER PAD 

 

Thu 15, Feb 2007 

1:00:03 AM 

+ H 

Number 

Pad 

OK 

D 


A B C D 

The Clear Programs Sub-Menu will clear all regularly scheduled events 

(non-holiday events) from memory. If only an individual event needs to 

be erased, it is better to select the event through the Scheduling Menu 

and press the CLR button (on the keypad) to erase it. 



Sub-Menus. 



Sub-Menu. 

A prompt will appear to 

verify the deletion of the 

schedules. Press the A 

button to proceed or 

press the D button to 

cancel the action. 

Messages will appear 

indicating the status of the 

erasing process. After the 

erasing process is complete, 

the screen will display the 

Clear Memory Menu. 

CLEAR OPTIONS 



1 OF 4 

OK 

A B D 

CLEAR PROGRAMS MENU 

Are you sure ??? 

YES 

A 

CLEAR PROGRAMS MENU 

COMPLETE 

NO 

D 


page 19 

lighting controls



Programming 

2 Clearing Holidays 

The Clear Holidays Sub-Menu will clear all holiday scheduled events 

from memory. If only an individual event needs to be erased, it is 

better to select the event through the Scheduling menu and press the 

CLR button to erase it. 



Sub-Menus. 

CLEAR OPTIONS 



2 OF 4 

OK 

2 Factory Defaults 

The Factory Default Sub-Menu will erase everything and will restore all 

the factory default settings for the WTP-4408. The Factory Default 

Option does all the functions of the three other clearing menus, in 

addition to restoring all the factory settings to their defaults. 

This menu option should be used with extreme caution. The user 

should first note all regional settings, i.e.: latitude, longitude & time 

zone information. As well, all program schedules may need to be 

documented for future reference. 



Sub-Menu. 

A B D 



Sub-Menus. 

CLEAR OPTIONS 



4 OF 4 

OK 



schedules. Press the A 






erasing process. Once the 




3 Clearing Logs 

CLEAR HOLIDAYS MENU 


YES 

A 


COMPLETE 

The Clear Logs Sub-Menu will clear all stored logs from the event log 

memory. The event logger logs the last 100 events. Therefore, only 

the last 100 events are viewable.This is very useful for monitoring the 

status of the outputs over a period of time. For more information on 

event logging, refer to the Information section of this manual. 



Sub-Menus. 



Sub-Menu. 



event log. Press the A 






erasing process. After the 




CLEAR OPTIONS 



NO 

D 

3 OF 4 

OK 

A B D 

CLEAR LOGS MENU 


YES 

A 


Clearing Logs 

Please Wait... 


page 20 

NO 

D 



Sub-Menu. 


verify the deletion. Press 

the A button to proceed 

or press the D button to 


Various messages will 

appear indicating the 

status of the erasing 

process. After the erasing 

process is complete, the 

screen will display the 


A B D 

FACTORY RESET 


YES 

A 


COMPLETE 

Initialize WTP-4408 

With Defaults 

Clear EEprom Memory 

Status 30% 


With Defaults 

Writing Config Data 

Status 40% 


With Defaults 

Setting 

Default Time 

Thu 15, Jan 2007 

1:00:00 AM 

NO 

D 


A B C D 

lighting controls



Programming 

Scheduling Menu 

Main Menu 

Setup Menu 

Sched Menu 

(Schedule) 

Manu Menu 

(Manual) 

Info Menu 

(Information) 










(a) ON/OFF 













page 21 

lighting controls



Programming 

Regular & Holiday Schedules 

There are two type of schedules - Regular & Holiday. 

• Regular Schedules 

Operate year round on a weekly basis. 

• Holiday Schedules 

Operate on a specific date and have precedence over regular 

schedules that repeat each week. Each holiday has its own 

independent schedule, allowing unique schedules for each holiday date. 

Regular and holiday schedules both provide the same type of scheduling 

features. The process of setting up a regular or a holiday schedule is 

virtually identical. All the same programming features are available to 

both, the only difference is holiday schedules operate on a specific date. 

• Memory Capacity 

The WTP-4408 controller can store up to 900 unique scheduled 

events. This is more than sufficient for most applications. 

• Power Failure 

Both Regular & Holiday schedules are retained indefinitely should 

power be disconnected to the unit. In the event of a power failure, the 

date and time are retained for a period of 72 hrs. If more than 72 hours 

elapses, date and time must be manually restored. All programmed 

Schedules, though, are saved indefinitely if power is lost. 

Scheduling Basics 

The Scheduling Option lets the user enter both weekly and holiday 

scheduled events into the WTP-4408 memory. The following is a guide 

on how to set up all the various types of schedules. 

The procedure for creating or editing a weekly or holiday schedule is 

virtually identical, except that holiday schedules require the user to 

enter a specific date on which the schedule will be executed. 

Most of the examples and explanations depicted in this section are 

those for a weekly schedule. 

1 Accessing Schedule Mode 

2 

From the Main Menu 

press the B button to 

access Schedule 

Mode. 

Thu 15, Feb 2007 

8:30:03 AM 



A B C D 

Navigating the Schedule Sub Menus 

3 Creating Holiday Schedules 

The following pages describe how to enter a schedule into the WTP- 

4408. There are two types of schedules the WTP-4408 can 

accommodate - weekly and holiday. Holiday schedules operate on a 

specific day of the year rather than year round like a weekly schedule. 

Shown below are the different screens a user will encounter when 

setting up a holiday schedule as opposed to a weekly schedule. 

From the Schedule Menu 

select option (b), using the 

A and B buttons, to enter a 

holiday schedule. 

The display will indicate if 

any holiday schedules are 

present. Press A & B buttons 

to scroll through the 

available holiday dates. 

Press the C button to 

edit the highlighted 

holiday date. 

Press the D button 

to create a new 

holiday schedule. 

These screens depict a new 

holiday schedule being 

created. 

Press A button to select 

entering the month and 

the B button to select 

entering the day. 

Use the number buttons 

on the keypad to enter 

the month and day of the 

holiday. 

Press the D button to save 

the holiday date and to set 

up scheduled events. 

SCHEDULE MENU 

(a) View/Edit Sched's 

(b) View/Edit Holiday 

VIEW/EDIT HOLIDAYS 

No Holidays 

in Memory 

2 OF 2 

OK 

A B D 

NEW 

A B D 

OR 

VIEW/EDIT HOLIDAYS 

> Jan 1 

> Dec 25 

EDIT 

NEW HOLIDAY 

MONTH 

01 

A 

B 

NEW 

A B C D 

DAY 

01 

OK 

D 



Sub-Menus within the 

Scheduling Menu. 



Sub-Menu. 

SCHEDULE MENU 



1 OF 2 

OK 

A B D 


page 22 

Use the number keypad to 

select the desired output. 

The steps for creating a holiday schedule 

are identical to those for creating a weekly 

schedule. Refer to the following pages for 

programming a weekly schedule. 

VIEW/EDIT OUTPUT 

Holiday: Jan 01 

Select Output: ? 

Using Number Pad 

lighting controls



Programming 

Types Of Schedules 

1 Timed Schedules 

Use timed schedules to automatically switch lights. 

Remote switches permit occupant ON/OFF switching. 

1 2 3 

9 

12 

3 

AM 

6 

At opening, 

lights ON (see NOTE) 

12 

PM 

9 

6 

3 

After close 

Scheduled OFF 

12 

PM 

9 

6 

3 

Late night 

Repeat OFF 

NOTE: 

If local switches are installed, 

ON schedules should not be 

used, because the switches 

permit the lights to be turned 

ON only when needed. OFF 

schedules should be used, 

though, to ensure lights are 

eventually switched OFF. 

2 Astronomical Control 

Using longitude, latitude, time zone and date, the controller 

calculates the sunset and sunrise times. Outputs can be 

programmed to switch at these calculated times. 

An offset time (± 180 min) can be entered to cause the switching 

to occur before or after the actual sunset and sunrise times. 

Day 

Parking 

Lights 

Wall 

Packs 

Dusk 

Late 

Night 

Dawn 

Parking lot and building 

security lights ALL OFF. 

Switch exterior 

lights ALL ON. 

Switch parking lot OFF, 

leave wall packs ON. 

Before dawn, parking can 

go back ON (not shown). 

At dawn, ALL OFF. 

3 Photometric Control 

 

Connecting WPS-5527K Photo Sensor to the WTP-4408 

controller permits digital entry of the light levels. 

Range of sensor: 0-6000 foot candles. 

Each output of the controller can have unique ON and 

OFF set points for the different requirements of each 

of the lighting loads. 

Sunny Cloudy Night Night 

Sensor 

Skylight/ 

Windows 

Timed OFF 

12 

9 

6 

3 

When sunny, interior 

lights near window or 

skylights can be OFF. 

When overcast, interior 


skylights are turned ON. 

When dark, interior 


skylights are turned ON. 

Time control can be used 

to switch lights OFF and 

to disable sensor effect. 


page 23 

lighting controls



Programming 

Scheduling Flow Chart 

Scheduling Sub-Menu. 

Press B Button. 

View/Edit/Create 

Weekly Schedules. 

Select Option (a). 

View/Edit/Create 

Holiday Schedules. 

Select Option (b). 

Select or Create a 

New Holiday Date. 

Select Output Number. 

Use Number Button on Keypad. 

Edit a Selected Schedule. 

Press C Button. 

Create a New Schedule. 

Press D Button. 

Enter Time. 

Press A Button. 

Enter Output Action Type. 

Press B Button. 

Select the Days of the Week 

the Schedule will operate. 

Press C Button. 

NOTE: 

Day of the Week Selection is not 

available for Holiday Schedules 

Save the Schedule 

to Static Memory. 

Press D Button. 

Save to Permanent Memory. 

Press ESC Button on Keypad 

until Main Menu is visible. 


page 24 

lighting controls


Lighting Control Design - Office/Warehouse Complex Example 

It is recommended to use the following design example as a guide for 

utilizing the various features of the WTP-4408 and setting up schedules. 

ABC Company Office 

Wall Pack 

B-19 

Wall Pack 

B-19 

Wall Pack 

B-19 

Wall Pack 

B-19 

9 = H A D K I A 

2 H @ K ? J E B B E ? A 

 

 

B-11j 

B-5e 

B-5d 

B-15n 

B-15n 

B-15n 

n Sw 

Sw 

j 

e 

Sw 

B B E ? A 

B B E ? A 

Sw 

d 

Pole Light 

5 D E F F E C 4 A ? A E L E C * = O B-27 

B-1a 

B-1a 

Wall Pack 

B-19 

2 H @ K ? J E ) I I A 

Sw k, m 

* = H @ H 

B-7f 

Wall Pack 

B-19 

B-13k B-13m B-13k 

B-13m B-13k B-13m 

B-13k B-13m B-13k 

B-7f 

Sw 

Int, Ext 


B-7f 

B-9g 

> O 

B-3c B-3c B-3c 

 

A I 

9 A I 

B B E ? A ! B B E ? A " 

B-9h 

B-17q 

B-17q 

B-17p 

B-17p 

Sw f Sw g Sw h 

q 

Sw 

Sw 

p 

Programming 

Electrical lighting plan for ABC 

Company office building 

Control Strategy: 

• Interior Lights are to be controlled 

by local low voltage switches. An 

interior master override switch 

located in the General Office Area will 

override the General Office Area, the 

Production/Assembly, and the 

Warehouse lighting ON or OFF. The 

WTP-4408 will automatically sweep 

the lights OFF in the evening and late 

night. 

• Exterior Lights are to be controlled 

by the photocell and all the 

signage to be controlled by the 

WTP-4408's Astro feature. Only 

the wall pack & pylon sign will 

remain ON past 11PM each day. 

Circuit Number and 

Switch Leg information 

Low Voltage Switch 

with Switch Leg information 

B-1a 

Sw 

a 

B-1a 

Sw 

b, c 

/ A A H = B B E ? A ) H A = 

> > O 

B-3b B-3b B-3b 

B-1a 

B-1a 

Signage 

B-23 

Pole Light 

B-21 

2 = H E C J 

Pole Light 

B-21 

LEGEND 

Low Bay Fixture 

Pot Light Fixture 

B-9g 

Fluorescent Fixture 

Sw 

Low Voltage Switch 

Pylon Sign 

B-25 


page 25 

lighting controls



Programming 

Design Notes: 

• The relay panel will contain a WTP-4408 for Photo, Astro & Timed events. 

• The relay panel will also contain a WRS-2224 Programmable Relay Scanner. 

The WRS-2224 will allow for groups of relays to be switched simultaneously. 

The scanner comes with 24 outputs (1 output per relay) and 5 inputs. Any of 

the 5 inputs can control any combination of the 24 outputs. 

The Relay Panel consists of: 

• 1 hinged locking relay cabinet. 

• 1 WR-4075-120/277 

Transformer. 

• 36 WR-6161 Douglas 2-wire 

latching HID relays. 

• 1 WTP-4408 Photo/Time 

Controller. 

RELAY PANEL: 

LCP-B 

• 1 WRS-2224 Programmable 

Relay Scanner. 

Load Description 

Circuit 

Number 

Relay 

Number 

Interface 

O/P Number 

Local 

Switch 

Master 

Switch 

Timer 

Control 

Photocell 

Control 

Astro 

Control 

Lobby & Corridor 



B-1a 

B-3b 

B-3c 

1 

2 

3 

PRS1.1 

PRS1.2 

PRS1.3 

Sw-a TP-1 

Sw-b Sw-Int TP-1 

Sw-c Sw-Int TP-1 

Relay Panel schedule 

generated from the 

electrical lighting plan 

Office #1 

B-5d 

4 

PRS1.4 

Sw-d 

TP-1 

Office #2 

B-5e 

5 

PRS1.5 

Sw-e 

TP-1 

Boardroom 

B-7f 

6 

PRS1.6 

Sw-f 

TP-1 

Office #3 

B-9g 

7 

PRS1.7 

Sw-g 

TP-1 

Office #4 

B-9h 

8 

PRS1.8 

Sw-h 

TP-1 

Production/Office 

B-11j 

9 

PRS1.9 

Sw-j 

TP-1 


B-13k 

10 

PRS1.10 

Sw-k Sw-Int TP-1 


Warehouse 

Women's Washroom 

Men's Washroom 

B-13m 

B-15n 

B-17p 

B-17q 

11 

12 

13 

14 

PRS1.11 

PRS1.12 

PRS1.13 

PRS1.14 

Sw-m Sw-Int TP-1 

Sw-n Sw-Int TP-1 

Sw-p TP-1 

Sw-q TP-1 

• "TP-1" 

Photo/Timer 

(WTP-4408) 

output number #1 

Security Lighting (Wall Pack) 

B-19 

15 

PRS1.15 

Sw-Ext 

TP-2 

Parking Lot Lighting (Pole Light) 

B-21 

16 

PRS1.16 

Sw-Ext 

TP-3 

TP-3 

Signage 

B-23 

17 

PRS1.17 

Sw-Ext 

TP-4 

Pylon Sign 

B-25 

18 

PRS1.18 

Sw-Ext 

TP-5 

TP-5 

Shipping/Receiving Bay 

B-27 

19 

PRS1.19 

Sw-Ext 

TP-3 

TP-3 

Spare 

Spare 

Spare 

20 

21 

22 

PRS1.20 

PRS1.21 

PRS1.22 

• "Sw-Ext" 

low voltage switch Ext 

(exterior). 

Spare 

Description & circuit number 

from the lighting plan 

23 

PRS1.23 

Spare 24 PRS1.24 


page 26 

Low Voltage Controls 

Refer the next page for the completed Event Schedules 

• "PRS1.24" 

Programmable Relay 

Scanner (WRS-2224) 

unit number #1 and 

output number #24. 

lighting controls



Programming 

Time Clock Event Schedules - Office/Warehouse Complex Example 

Each utilized WTP-4408 Output requires an event schedule indicating the type of event and when the event will occur. Refer to Appendix B for 

blank Event Schedules. Completing these schedules will help organize and greatly ease the programming process. The following are completed 

Event Schedules for the sample office/warehouse building for ABC Company on the previous pages. 


Clock does not turn the lights ON. Instead, entrance lights are switched ON by the first employee who uses the switch station 

located in the lobby. All other lights are also turned ON by local switches. 

Last employee leaves at 6:45 PM. Clock turns all interior lights OFF (7:00 PM) if any were left ON. 

■ Repeat OFF sweeps ensure that the lights are turned OFF (9 PM, 11 PM, 1 AM, 3 AM & 5 AM) in case they were turned ON at 

a local switch (for example, by a janitor). 

OUTPUT: #1 AREA CONTROLLED: Interior Lighting 


7:00 PM End of the work day. Lights turn OFF OFF 

9:00 PM Repeat OFF sweep 

OFF 

11:00 PM Repeat OFF sweep 

OFF 

1:00 

AM 


OFF 

3:00 

AM 


OFF 

5:00 

AM 


OFF 


The Photometric control feature is enabled at 5:00 AM. The WTP-4408 will automatically check the measured light level 

from the sensor head and compare it to the high & low setpoints. 

• If the measured light level is above high setpoint of 20fc, the Security lights will switch OFF. 

• If the measured light level is in between the high (20fc) and low (5fc) setpoints, no action will occur. 

• If the measured light level is below the low setpoint of 5fc, the Security lights will switch ON. 

The Security lights will switch ON at dusk and OFF at dawn or whenever the light level crosses one of the thresholds.. 

OUTPUT: #2 AREA CONTROLLED: Security 


5:00 AM Photo operation enabled PHOTO ENB 20 5 


page 27 

lighting controls



Programming 


The Photometric control feature is enabled at 5:00 AM. The WTP-4408 will automatically check the measured light 

level from the sensor head and compare it to the high and low setpoints. 

• If the measured light level is above the high setpoint of 20fc, the Parking Lot lights will switch OFF. 

• If the measured light level is in between the high (20fc) and low (5fc) setpoints, no action will occur. 

• If the measured light level is below the low setpoint of 5fc, the Parking Lot lights will switch ON. 

Photometric control feature is disabled by an OFF command at 11:00PM. The Parking Lot & Shipping/Receiving lights 

will be switched OFF. 

OUTPUT: #3 AREA CONTROLLED: Parking Lot & Shipping/Recieving Bay 


5:00 

AM 

Photo operation enabled. 

Parking Lot lights turned OFF. 

Photo operation disabled. 

PHOTO ENB 

20 5 

nce 

11:00 

PM 

OFF 


The Astronomic control feature is enabled at 5:00 AM. The WTP-4408 will automatically check to see if the last event 

was sunrise or sunset. The Signage will be switched OFF or ON, depending on the last event. On most dates throughout 

the course of the year the last event would be sunset, so the Signage will turn ON. 

Sunrise occurs. The Signage lights will be switched OFF. 

Sunset occurs later on that same day and the Signage lights are switched ON. 

OUTPUT: #4 AREA CONTROLLED: Signage 


5:00 AM Astro operation enabled ASTRO ENB 


The Astronomic control feature is enabled at 5:00 AM. The WTP-4408 will automatically check to see if the last event 

was sunrise or sunset. The Pylon Signs will be switched OFF or ON, depending on the last event. on most dates 

throughout the course of the year the last event would be sunset, so the Pylon Signs will turn ON. 

Sunrise occurs. The Pylon Sign lights are switched OFF. 

■ Sunset occurs later on that same day and the Pylon Sign lights are switched ON. 

Astronomic control feature is disabled by an OFF command at 11:00 PM. The Pylon Sign lights will also be switched OFF. 

OUTPUT: #5 AREA CONTROLLED: Pylon Signs 


5:00 

AM 

Astro operation enabled. 

Pylon Signage turned OFF. 

Astro operation disabled. 

ASTRO ENB 

11:00 

PM 

OFF 


page 28 

lighting controls



Programming 

Programming a Schedule 

Scheduled events must be programmed for each relay output used. 

There are four components that make up a scheduled event: 

• Time - This is the time of day when the scheduled event will 

occur. Time is entered in AM/PM format. 

• Action - Can be chosen from one of the following; ON, OFF, 

OFF+Flick, Time Out, Photocell, Astronomic or No Action. 

• Days - Specific days, or all days, of the week can be selected to 

execute the scheduled event. (NOTE: this option not available 

when programming a holiday schedule). 

• Save - A scheduled event is saved to temporary memory. 

Scheduled events are saved to permanent memory once the user 

returns back to the Main Menu. 

Use the following section as a guide for setting up all types of scheduled 

events. 

From the Schedule Menu select 

option (a), using the A and B 

buttons, to create a new 

Weekly scheduled event. 

Use the number keys on the 

keypad to select the desired 

relay output (1 through 8). 

The display will indicate if 

any scheduled events have 

been set up for the selected 

relay output. 

Press the A and B buttons to 

scroll the scheduled events. 

Press the C button to edit 

the highlighted scheduled 

event. 

Press the D button to create 

a new scheduled event. 

If the D button is pressed to 

create a new scheduled event, 

this screen will appear: 

SCHEDULE MENU 



1 OF 2 

OK 

A B D 

VIEW/EDIT OUTPUT 

Select Output: ? 

Using Number Pad 

VIEW OUTPUT: 1 MTWTFSS 

No Schedules 

For this Output 

NEW 

Highlighted Event Days of 

Event Action Week 

Selected 

Relay Output # 


Event Time 05:00A ON MTWTF 

11:00P OFF MTWTFSS 

EDIT NEW 

A B C D 

NEW OUTPUT: 1 MTWTFSS 

--:--A MTWTFSS 

TIME 

ACTION 

OR 

DAYS 

SAVE 

A B C D 

NOTE: 

To cancel any modifications while editing the event, press the 

ESC button on the keypad to return to the Event Schedule 

Menu without saving any changes. 


page 29 

1 Event Time Setup 

Press the A button to 

modify the time. 


toggle between AM 

and PM. 

Use the number keys 

on the keypad to enter 

the time. 


accept the newly 

entered time entry and 

return back to Event 

Schedule Menu. 

The Event Schedule Menu 

appears and displays the 

newly entered time for the 

event. 

2 Event Action Setup 

Press the B button to 

select the type of 

event Action. 

Press the A and B 

buttons to scroll 

through the types of 

event actions. 

The following 

sections explain each 

of the various action 

types that are 

available. 


--:--A MTWTFSS 

TIME 

ACTION 

DAYS 

SAVE 

A B C D 

NEW SCHEDULE TIMES: 

PLEASE ENTER 

TIME 

--:-- AM 

AM/PM OK 

NEW SCHEDULE TIMES: 

PLEASE ENTER 

TIME 

06:00 AM 

OK 


06:00A MTWTFSS 

TIME 

ACTION 

DAYS 

D 

SAVE 

A B C D 


06:00A MTWTFSS 

TIME 

ACTION 

C 

DAYS 

NEW SCHEDULE ACTION 

TYPE OF 

ACTION: 

SAVE 

A B C D 

OK 

A B D 

lighting controls



Programming 

Types of Schedules 

ON 

The relay output will issue a 

signal to turn the relay(s) 

ON at the specified time. 


confirm the ON action and 

return to the Event 



appears: 

OFF 

The relay output will issue a 

signal to turn the relay(s) 

OFF at the specified time. 


confirm the OFF action 

and return to the Event 



appears: 

Photocell Enable 

Refer to Page 28 for how 

to SAVE a schedule to 

permanent memory. 


TYPE OF 

ACTION: ON 

OK 

A B D 


06:00A ON MTWTFSS 

TIME 

ACTION 

DAYS 

SAVE 

A B C D 


TYPE OF ON 

ACTION: OFF 

In order to utilize this feature, a WPS-5527K Photometric Sensor 

must be connected to the WTP-4408 Controller and the Photo 

Settings Option must be turned ON in the Setup Menu. 

Photo control will be enabled 

at the specified time. 

Press the D button to confirm 

the Photocell Enable action 

and proceed to the Setpoint 

Setup screen. 

When the Setpoint Setup 

screen appears, press the A 

button to modify the high 

setpoint or the B button to 

modify the low setpoint. 

Use the number keys on the 

keypad to enter both the high 

and low level setpoints. Be 

sure that the high setpoint 

value is greater than the low. 


TYPE OF TIMEOUT ENB 

ACTION: PHOTO ENB 

OK 

A B D 

SETPOINT SETUP 

HIGH LEVEL: 

LOW LEVEL: 

HIGH LOW 

A 

B 

OK 

A B D 


06:00A OFF MTWTFSS 

TIME 

ACTION 

DAYS 

SAVE 

A B C D 

0020 fc 

0005 fc 


page 30 

Photocell Enable (continued) 


confirm the Photocell 

Enable and the setpoint 

selections and return to 

the Event Schedule Menu. 


appears: 

How the Photocell Control (PHOTO ENB) works: 

The WTP-4408 will automatically keep track of the measured light level 

(in footcandles) sent from the sensor head. This information will be 

displayed on the Main Menu. The measured light level can be used to 

switch relays ON or OFF depending on the setpoints. 

The following diagram shows the relationship between measured light 

level and the setpoints. 

15fc 

current measured light level 

from sensor head 

ON 

5fc 

Low Level Setpoint 

Dead Band 

OFF 

20fc 

High Level Setpoint 

When the measured light level passes above the High setpoint, the relay 

output will turn OFF. The opposite occurs when the measured light level 

falls below the Low setpoint. 

Note the switching action only occurs when the light level goes past a 

setpoint or when the Photocell is enabled by a scheduled event. The relay 

outputs will issue a momentary signal ON or OFF. 

The WTP-4408 will wait 3 minutes to switch the relays. The purpose is to 

nullify any temporary changes to the light level that could cause false 

switching. 

Photocell control is used primarily in exterior or interior skylighting 

control applications. Typically, for an exterior application the setpoints 

would be 20fc for the High & 5fc for the Low. 

For an interior application that switches lights on a cloudy day, typical 

setpoints are 1000fc for the High and 700fc for the Low. 

CAUTION: Do not schedule an ON or an Astronomical (Astro ENB) 

event when the Photocell mode (Photo ENB) is scheduled to 

operate on that output. 

Continued on the next page ... 

SETPOINT A SETUP B D 

HIGH LEVEL: 

0020 fc 

LOW LEVEL: 

0005 fc 

OK 


06:00A PHOTO ENB MTWTFSS 

TIME 

ACTION 

DAYS 

D 

SAVE 

A B C D 

lighting controls



Programming 


The Photocell Control can be set up to operate in several different 

ways, as described below. 

DUSK-to-DAWN - To achieve this type of control it is advised that 

the Photocell Control feature be enabled every day of the week. An 

example time would be 4:00AM. Make sure no other schedules are 

operating the same relay output. 

The relays (lights) will turn ON at Dusk and OFF at Dawn. By 

adjusting the High & Low setpoints the user can vary the amount of 

light that is required to switch the relays ON or OFF. Dusk-to-Dawn 

control is ideal for security lighting applications. The diagram below 

shows a typical Photocell Dusk-to-Dawn control cycle. 

Photocell Enabled, light level 

below Low setpoint, relays turn ON 

(probably already ON by dusk signal) 

Cycle repeats itself the 

following day 


DUSK-to-TIMED OFF, TIMED ON-to-DAWN - To achieve this type of 

control, the Photo control is enabled at a time before dawn when the 

lights are to be switched ON, for instance 4:00 AM. When enabled, 

the Photo command will issue an ON signal before sunrise or an OFF 

signal after sunrise. At sunset, an ON signal is issued. Late at night, 

a timed OFF signal occurs to switch OFF the lights. At 4:00 AM the 

Photo enable occurs and the cycle repeats. 

By adjusting the High & Low setpoints, the user can vary the 

amount of light required to switch relays ON or OFF. The diagram 

below shows a typical Photo Sunset-to-Timed-OFF control cycle. 

Photo Enabled, light level below 

setpoint, relays turn ON 

Sunrise occurs, 

relays turn OFF 


following day 

Sunset occurs, 

relays turn ON 

Light level goes above High 

setpoint, relays turn OFF 

Light level goes below Low 


OFF schedule occurs, 

Photo Disabled, relays 

turn OFF 

Relays ON Relays OFF Relays ON 

4:00 AM Dawn Dusk 4:00 AM 

DUSK-to-TIMED OFF - To achieve this type of control, the Photo 

control must be enabled to initiate the Photo feature. A timed OFF 

command is issued to switch the lights OFF at the desired time. The 

timed OFF command also disables the Photo feature. If the feature 

is required for the for the following day, it must be entered for each 

day. The best time to enable the Photo feature is sometime during 

the day, say 3:00 PM. 

By adjusting the High & Low setpoints, the user can vary the 

amount of light required to switch relays ON or OFF. The diagram 

below shows a typical Photo Dusk-to-Timed OFF control cycle. 

Photocell Enabled, light level above 

Low setpoint, relays turn OFF 

Light level goes below Low 


Dawn occurs, No action 

occurs since Photo Disabled 

OFF Schedule occurs, 

Photo disabled, relays turn OFF 


following day 

Relays OFF Relays ON Relays OFF 

3:00 PM Dusk 11:00 PM Dawn 3:00 PM 

CAUTION: Do not schedule an ON or an Astronomical (Astro ENB) 

event when the Photocell mode (Photo ENB) is scheduled to 

operate on that output. 

Relays ON Relays OFF Relays ON Relays OFF 

4:00 AM Sunrise Sunset 11:00 PM 4:00 AM 

Astronomic Enable 

To utilize this feature, the Astro Settings Option must be turned ON in 

the Setup Menu. The Astro Dawn and Dusk Offsets are also adjusted 

in the Setup Menu. 

Astro control will be enabled 

at the specified time. 


confirm the Astro Enable 

action and return to the 

Event Schedule Menu. 


appears: 


TYPE OF PHOTO ENB 

ACTION: ASTRO ENB 


06:00A ASTRO ENB MTWTFSS 

TIME 

ACTION 

DAYS 

OK 

A B D 

SAVE 

How the Astro Control (ASTRO ENB) works: 

When the Astro Settings option is enabled via the Setup Menu, the 

WTP-4408 will automatically calculate the sunrise and sunset times for 

all the days of the year. This information is displayed in the Information 

Menu. These calculated sunrise and sunset times can be used to 

switch relays ON or OFF. 

When sunrise occurs, the output relays will turn OFF. When sunset 

occurs, the output relays will turn ON. 

Note the switching action only occurs when sunset or sunrise occur, or 

when the Astro feature is enabled by a scheduled event. When the 

Astro feature is enabled, the WTP-4408 will check if sunrise or sunset 

was the last action to occur and will issue an ON or OFF signal to the 

relay output depending on which was the last action. 

The Astro control can be used as a substitute for Photocell control for 

applications where a Photocell Sensor is not installed. 


page 31 

lighting controls



Programming 

Astronomic Enable (continued) 

CAUTION: Do not schedule an ON or a Photocell (Photo ENB) 

event when an Astronomical (Astro ENB) event is scheduled to 

operate on a relay output. 

The Astro feature can be set up to operate in several different ways as 

described below. 

SUNSET-to-SUNRISE - To achieve this type of control it is advised 

that the Astro Control feature be enabled before sunrise for every 

day of the week. An ideal time would be 4:00 AM. Make sure to 

have no other schedules operating on the same relay output. 

The diagram below shows a typical Astro Sunset-to-Sunrise control 

cycle. 

Astro Enabled, last action 

Sunset, relays turn ON 

(probably already ON by Sunset signal) 


following day 

Astronomic Enable (continued) 

SUNSET to TIMED OFF, TIMED ON to SUNRISE - To achieve this 

type of control, the Astro control is enabled at the time the lights are 

to be switched ON, say 4:00 AM. When enabled, the Astro 

command will issue an ON signal before sunrise or OFF signal after 

sunrise. At sunset, an ON signal is issued. Late at night, a timed 

OFF signal occurs to switch OFF the lights. At 4:00 AM, the Astro 

enable occurs and the cycle repeats. 

The diagram below shows a typical Astro Sunset-to-Timed OFF 

control cycle. 


Sunset, relays turn ON 




following day 




Astro Disabled, relays turn OFF 





Relays ON Relays OFF Relays ON Relays OFF 

4:00 AM Sunrise Sunset 11:00 PM 4:00 AM 

Relays ON Relays OFF Relays ON 

4:00 AM Sunrise Sunset 4:00 AM 

SUNSET-to-TIMED OFF - To achieve this type of control, the Astro 

Control must be enabled to initiate the Astro feature. The Timed 

OFF command is issued to switch the lights OFF at the desired time. 

The Timed OFF command also disables the Astro feature. If the 

feature is required for the following day, it must be entered for each 

day. The best time to enable the Astro feature is sometime during 

the day, say 3:00 PM. 

The diagram below shows a typical Astro Sunset-to-Timed OFF 

control cycle. 


Sunrise, relays turn OFF 




Astro Disabled, relays 

turn OFF 


following day 


No Action occurs 

since Astro Disabled 

Relays OFF Relays ON 

Relays OFF 

3:00 PM Sunset 11:00 PM Sunrise 3:00 PM 

No Action 

No Action will be specified 

for the selected time. There 

will be no change to the 

state of the output relay(s). 


confirm the No Action and 

return to the Event 



appears: 


TYPE OF 

ACTION: 

OK 

A B D 


06:00A NO ACTION MTWTFSS 

TIME 

ACTION 

DAYS 

SAVE 

A B C D 

When do you use a NO ACTION function? 

The output will not change the state of the output relays when a No 

Action command is the scheduled event. 

An application for this function would be if a scheduled event is not 

required to operate on a particular day. Instead of eliminating the 

scheduled event, a No Action event can be substituted for the regularly 

scheduled event for that day. The event can be easily modified for 

some other type of action later. 


page 32 

lighting controls



Programming 

3 Days of the Week Selection 

4 Saving the Event to Memory 

 


select the days of the 

week the scheduled event 

will operate. 

The Day Selection screen 

defaults to every day of the 

week selected for operating 

the scheduled event. 

If no changes are required, 

press the D button to return to 

the Event Schedule Menu. 

OR 

Press the corresponding key 

number on the keypad to 

select, or un-select, the days of 

the week the scheduled event 

will operate. A check mark 

indicates the day is selected, 

while a blank indicates the day 

is not selected. 

Press D to accept the day 

selections and to return 

back to the Event Schedule 

Menu. 


06:00A PHOTO ENB MTWTFSS 

TIME ACTION DAYS SAVE 

A B C D 

SELECT SCHED DAYS 

2 

M T W T F S S 

USE NUMBER PAD OK 

D 

SELECT SCHED DAYS 

2 

M T W T F S S 

USE NUMBER PAD OK 

D 

There are two types of memory utilized for saving schedules: 

• Temporary Memory - information is only saved to this type of memory 

when a scheduled event is saved within the Event Schedule Menu. 

A schedule saved to this type of memory will not effect permanent 

memory. Hence the programmed schedules in permanent memory 

will function even while the user is editing or creating schedules. 

CAUTION: If power is removed from the WTP-4408 while in the 

Scheduling Menu, all information stored in temporary memory will be lost. 

• Permanent Memory - Schedules are saved to permanent memory 

only if the user returns back to the Main Menu from the Scheduling 

Menu by pressing the ESC button on the keypad repeatedly. Once 

this occurs, the WTP-4408 can start executing the created or 

modified schedules. 

Press the D button to save 

the newly created schedule 

to temporary memory and 

return to View/Edit Menu. 

The View/Edit Screen 

displays the newly-created 

scheduled event with all 

the event's details. 


06:00A PHOTO ENB MTWTF 

TIME 

ACTION 

DAYS 

SAVE 

A B C D 



SPH: 0200 FC SPL: 0050 FC 

EDIT NEW 

A B C D 


now displays the newly 

selected days of the week. 



TIME ACTION DAYS SAVE 

A B C D 

Press the ESC button on the 

keypad repeatedly until the 

Main Menu is viewable. 

When the Main Menu 

appears, all the newlycreated 

or modified 

schedules have been 

saved to permanent 

memory. 

- I ? 

! 

" # $ 

% & ' 

Number 

Pad 

Thu 15, Feb 2007 

8:30:03 AM 



A B C D 

 

+ H 

IMPORTANT: To ensure all created or modified schedules are 

saved into permanent memory, press the ESC button on the 

keypad until the Main Menu is displayed. All modified & created 

schedules are saved to permanent memory during this process. 


page 33 

lighting controls



Programming 

5 Erasing Individual Schedules 


select the scheduled event to 

be erased from the View/Edit 

Menu. 


05:00A ON MTWTF 

11:00P OFF MTWTFSS 

EDIT NEW 

A B C D 

Press the CLR button on the 

keypad to erase the 

highlighted schedule. 

CAUTION: Once the schedule 

has been erased, there is no 

recovery mechanism to undo 

the erasure. 

Number Pad 

- I ? ! 

" # $ 

% & ' 

 

+ H 

The View/Edit Menu no 

longer displays the 11:00 

PM event. This event has 

been permanently erased 

from memory. 

VIEW OUTPUT: 1 

05:00A ON 

MTWTFSS 

MTWTF 

EDIT NEW 

A B C D 


page 34 

lighting controls



Programming 

Manual Menu 

Main Menu 

Setup Menu 

Sched Menu 

(Schedule) 

Manu Menu 

(Manual) 

Info Menu 

(Information) 




(a) ON/OFF 

















page 35 

lighting controls



Programming 

Manual Override 

The Manual Override Option allows the user to easily switch any of the 

relay outputs of the WTP-4408 Controller unit. It also allows the user to 

test a WPS-5527K Photo Sensor, when one is connected, directly from 

the WTP-4408. 

Prior to entering schedules, it is advisable to use the Override Outputs 

option to turn each output ON & OFF to verify that the outputs switch 

the desired relays. 

If a Photo Sensor is connected to the WTP-4408, it is also advisable to 

verify the sensor's accuracy and that it is switching the desired relays by 

using the Photo 3-second Mode option. The Photo 3-second mode 

enables a photo-controlled output response within 3 seconds of the 

measured light level passing through a set point. 

The output relays themselves can also be directly overridden by using 

the manual ON/OFF lever built into the relays. The diagram below shows 

the typical placement of the override lever on a relay. It is recommended 

that a slotted screw driver be used for moving the lever. 

Manual Switch 

Lever & Indicator 

Place the slotted 

screw driver in the 

lever slot to override 

Low Voltage 

Terminals 

2 Override Outputs 

From the Manual Menu 

select option (a) to override 

selected relay outputs. 


access the Override 

Outputs Sub-Menu. 

The Override Outputs 

screen appears, 

defaulted to all relay 

outputs not selected. 

To select relay output(s), 

press the corresponding 

number keys on the 

keypad. 

For the selected outputs 

(those with a check mark), 

press the C button to issue 

an OFF signal or press the 

D button to issue an ON 

signal. 

MANUAL MENU 

1 OF 2 

(a) override outputs 


OK 

A B D 

OVERRIDE OUTPUTS 

1 2 3 4 5 6 7 8 

Select Outputs OFF ON 

C D 

- I ? ! + H 

" # $ 

% & ' 

 

OVERRIDE OUTPUTS 

1 2 3 4 5 6 7 8 

Select Outputs OFF ON 

C D 

Load 

Terminals 

WR-6161 HID Relay 

The Manual Override option, or the manual ON/OFF lever, should NOT be 

used for normal day to day relay switching. If day-to-day switching is 

needed, install remote Douglas 2-wire switches and connect them in 

parallel with the relay outputs of the WTP-4408. 

Likewise, the Photo 3-second Mode should NOT be used for day-to-day 

operation with a Photo Sensor. A time delay of only 3 seconds between 

light level change detection and output triggering would create unnecessary 

ON/OFF cycling. Unless you are testing the photo sensor, leave this option 

OFF. 

3 Phototest 3-Second Mode 

NOTE: This option is not available with older versions 

of the WTP-4408 Controller software. 

From the Manual Menu 

select option (b) for 3- 

second time delay for the 

Photo Sensor. 


access the Phototest 3s 

Mode Sub-Menu. 

MANUAL MENU 

(a) override outputs 


2 OF 2 

OK 

A B D 

1 Accessing and Leaving Manual Mode 

From the Main Menu press 

the C button to access the 

Manual Mode option. 

When you are finished 

using the Manual Menu, 

press the ESC button 

on the keypad to return to 

the Main Menu. 

Fri 16, Nov 2007 

1:00:03 PM 


A B C D 

Fri 16, Nov 2007 

1:10:09 PM 

Esc 



page 36 

Press the A button to 

select the Phototest 3 sec 

mode, then press the D 

button to activate it for 

testing the photo sensor. 

When testing is completed, 

be sure to turn the photo 

test mode OFF. 

Press the B button to 

select turning OFF the 

Phototest 3 sec mode, 

then press the D button 

to de-activate it. 

PHOTODELAY 3S MODE 

ON / OFF 

A B 

OK 

D 

PHOTODELAY 3S MODE 

ON / ON OFF 

OK 

A B 

D 

lighting controls


Scheduling Menu 


Main Menu 

Programming 

Setup Menu 

Sched Menu 

(Schedule) 

Manu Menu 

(Manual) 

Info Menu 

(Information) 




(a) ON/OFF 


















Information 

The Information Menu has 4 Sub-Menus for viewing information about 

the WTP-4408. The following is a brief description of each Sub-Menu. 

• Memory Status - Shows the number of schedules permitted and the 

number that are currently in use. 

• Sunrise/Sunset - Shows current sunrise and sunset times, which are 

based on the latitude, longitude and time zone information entered in the 

Astro option. 

• View Event Logs - Shows output logs. Each relay output monitors the 

state of the relay(s) connected to it and logs any status change. 

• About - Shows the software and hardware version numbers of the unit. 

1 Accessing Information 

From the Main Menu press 

the D button to access the 

Information Mode option. 



sub menus within the 

Information Menu. 



Sub-Menu. 

Fri 16, Nov 2007 

8:30:03 AM 



A B C D 

INFO SCREEN 


(b) Sunset/Sunrise Tm 

1 OF 4 

OK 

A B D 


page 37 

2 Memory Status 

The Memory Status Sub-Menu displays the number of scheduled 

events (including holidays) that can be stored in memory and the 

number of the scheduled events that are being used. 

Knowing the number of events already scheduled allows the user to 

determine the number of available events for programming. 

Number of scheduled events that 

are currently stored in memory 

Total number of scheduled events 

that can be stored in memory 


return back to the 


INFO SCREEN 


(b) Sunrise/Sunset Tm 

1 OF 4 

OK 

A B D 

SYSTEM MEMORY USED 

056 SCHEDULES OF 900 

OK 

D 

lighting controls



Programming 

3 Sunrise/Sunset Times 

If the Astronomical feature is enabled, this Sub-Menu will display the 

current sunrise and sunset times that are automatically calculated for the 

current date from the latitude, longitude and time zone information. 

If there are any scheduled events using Astro function, the times when 

lights will be turned ON (sunset) & OFF (sunrise) can easily be determined 

from this Sub-Menu. 

CAUTION: If offset times have been entered, actual switching will occur at 

the time displayed in the Info Screen plus or minus the offset time. 

Current Sunrise & Sunset Times 


return back to the 


INFO SCREEN 



2 OF 4 

OK 

A B D 

TODAYS TIMES: 

SUNRISE: 06:27 AM 

(b) SUNSET: Relay Status 05:40 PM 

OK 

D 

While in the View Event Log 

Sub-Menu, you can clear all 

logs from memory by 

pressing the CLR 

button on the keypad. 

This method is quicker than 

clearing the logs through 

the Setup Menu. 

The display will 

advise you when 

clearing logs, then 

will return to the 

Information Menu 

upon completion. 


Clearing Logs 

YES Please Wait ... 

CAUTION: Be careful to understand this function prior 

to using it. Once the memory has been erased, there is 

no recovery mechanism to restore the cleared data. 

5 About 

Clr 

NO 

The About Sub-Menu displays the Hardware and Software version 

numbers of the WTP-4408 unit. 

4 View Event Logs 

The logging feature will track the time and the type of scheduled event that 

caused the action. 

The WTP-4408 controller stores up to 100 log events. Oldest log entries are 

discarded for new ones. 

The event logging feature is ideal for troubleshooting purposes. It helps monitor 

the actions of all relay outputs over a specific period of time. This will help to 

isolate when a problem occurred and what action, if any, took place. 

Type of Event: 

Scheduled Event, Astro 

Event, Photo Event or 

Manual Override 

Total Number of Logs 

Log Number 

Event Time 

Type of Action: ON or OFF 



logged actions. 

Press the D button to return 

to the Information Menu. 

INFO SCREEN 



3 OF 4 

OK 

A B D 

LOG: 01/53 Nov 16/07 

01:30 am 

RELAY: 01 

OFF BY: SCHEDULED EVENT 

OK 

A 

Event Date 

Relay Output 

Number 


page 38 

B 

D 

Software Version 

Number 


return to the 


INFO SCREEN 

4 OF 4 


(d) About 

OK 

A B D 

Hardware Version Number 

INFO SCREEN 

SW VER: 1.00 / HW VER: 1.00 

OK 

D 

lighting controls



Astronomic Settings 

U.S.A. Latitude/Longitude/Time Zones 

ALABAMA 

• Birmingham: 33°N, 86°W, Central 

• Mobile: 30°N, 88°W, Central 

• Montgomery: 32°N, 86°W, Central 

ARIZONA 

• Flagstaff: 35°N, 111°W, Mountain 

• Phoenix: 33°N, 110°W, Mountain 

• Tucson: 32°N, 110°W, Mountain 

• Yuma: 32°N, 114°W, Mountain 

ARKANSAS 

• Little Rock: 34°N, 92°W, Central 

CALIFORNIA 

• Bakersfield: 35°N, 119°W, Pacific 

• Fresno: 36°N, 119°W, Pacific 

• Los Angeles: 34°N, 118°W, Pacific 

• Modesto: 37°N, 121°W, Pacific 

• Redding: 40°N, 122°W, Pacific 

• Sacramento: 38°N, 121°W, Pacific 

• San Diego: 32°N, 117°W, Pacific 

• San Francisco: 37°N, 122°W, Pacific 

COLORADO 

• Denver: 39°N, 104°W, Mountain 

• Grand Junction: 39°N, 108°W, Mountain 

CONNECTICUT 

• Hartford: 41°N, 72°W, Eastern 

DELAWARE 

• Dover: 39°N, 75°W, Eastern 

DISTRICT OF COLUMBIA 

• Washington: 38°N, 77°W, Eastern 

FLORIDA 

• Jacksonville: 30°N, 81°W, Eastern 

• Miami: 25°N, 80°W, Eastern 

• Orlando: 28°N, 81°W, Eastern 

• Pensacola: 30°N, 87°W, Central 

• Tallahassee: 30°N, 84°W, Eastern 

• Tampa: 27°N, 82°W, Eastern 

GEORGIA 

• Atlanta: 33°N, 84°W, Eastern 

• Columbus: 32°N, 84°W, Eastern 

• Savannah: 32°N, 81°W, Eastern 

HAWAII 

• Honolulu: 21°N, 157°W, Hawaii 

ILLINOIS 

• Chicago: 41°N, 87°W, Central 

• Roseville: 40°N, 90°W, Central 

• Springfield: 39°N, 89°W, Central 

INDIANA 

• Fort Wayne: 41°N, 85°W, Eastern 

• Indianapolis: 39°N, 86°W, Eastern 

IOWA 

• Cedar Rapids: 42°N, 91°W, Central 

• Des Moines: 41°N, 93°W, Central 

• Sioux City: 42°N, 96°W, Central 

KANSAS 

• Dodge City: 33°N, 100°W, Central 

• Kansas City: 39°N, 94°W, Central 

KENTUCKY 

• Bowling Green: 35°N, 86°W, Central 

• Lexington: 38°N, 84°W, Eastern 

LOUISIANA 

• New Orleans: 29°N, 90°W, Central 

• Shreveport: 32°N, 93°W, Central 

MAINE 

• Portland: 43°N, 70°W, Eastern 

MARYLAND 

• Baltimore: 39°N, 76°W, Eastern 

MASSACHUSETTS 

• Boston: 42°N, 71°W, Eastern 

MICHIGAN 

• Detroit: 42°N, 83°W, Eastern 

• Grand Rapids: 42°N, 85°W, Eastern 

• Sault Ste. Marie: 46°N, 84°W, Eastern 

MINNESOTA 

• Duluth: 46°N, 92°W, Central 

• Minneapolis: 44°N, 93°W, Central 

MISSISSIPPI 

• Jackson: 32°N, 90°W, Central 

MISSOURI 

• Kansas City: 39°N, 94°W, Central 

• Springfield: 37°N, 93°W, Central 

• St. Louis: 38°N, 90°W, Central 

NEBRASKA 

• Omaha: 41°N, 96°W, Central 

• Scottsbluff: 41°N, 103°W, Mountain 

NEVADA 

• Las Vegas: 36°N, 115°W, Pacific 

• Reno: 39°N, 119°W, Pacific 

NEW HAMPSHIRE 

• Concord: 43°N, 71°W, Eastern 

NEW JERSEY 

• Atlantic City: 39°N, 74°W, Eastern 

NEW MEXICO 

• Albuquerque: 35°N, 106°W, Mountain 

• Roswell: 33°N, 104°W, Mountain 

NEW YORK 

• Albany: 42°N, 73°W, Eastern 

• Buffalo: 42°N, 78°W, Eastern 

• New York City: 40°N, 73°W, Eastern 

• Syracuse: 43°N, 76°W, Eastern 

NORTH CAROLINA 

• Charlotte: 35°N, 80°W, Eastern 

• Raleigh: 35°N, 78°W, Eastern 

• Wilmington: 34°N, 77°W, Eastern 

• Winston-Salem: 36°N, 80°W, Eastern 

NORTH DAKOTA 

• Bismarck: 46°N, 100°W, Central 

• Fargo: 46°N, 96°W, Central 

OHIO 

• Cincinnati: 40°N, 84°W, Eastern 

• Cleveland: 41°N, 81°W, Eastern 

• Columbus: 40°N, 82°W, Eastern 

• Dayton: 39°N, 84°W, Eastern 

OKLAHOMA 

• Oklahoma City: 35°N, 97°W, Central 

OREGON 

• Eugene: 44°N, 123°W, Pacific 

• La Grande: 45°N, 118°W, Pacific 

• Medford: 42°N, 122°W, Pacific 

• Portland: 45°N, 122°W, Pacific 

PENNSYLVANIA 

• Philadelphia: 39°N, 75°W, Eastern 

• Pittsburgh: 40°N, 80°W, Eastern 

RHODE ISLAND 

• Providence: 41°N, 71°W, Eastern 


page 39 

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Astronomic Settings 

U.S.A. 

CANADA Latitude/Longitude/Time Zones 

SOUTH CAROLINA 

• Columbia: 34°N, 81°W, Eastern 

• Charleston: 32°N, 79°W, Eastern 

• Greenville: 34°N, 82°W, Eastern 

SOUTH DAKOTA 

• Rapid City: 44°N, 103°W, Mountain 

• Sioux Falls: 43°N, 96°W, Central 

TENNESSEE 

• Chattanooga: 35°N, 85°W, Central 

• Knoxville: 35°N, 83°W, Central 

• Memphis: 35°N, 90°W, Central 

• Nashville: 36°N, 86°W, Central 

TEXAS 

• Amarillo: 35°N, 100°W, Central 

• Brownsville: 25°N, 97°W, Central 

• Dallas: 32°N, 96°W, Central 

• El Paso: 31°N, 106°W, Mountain 

• Houston: 29°N, 95°W, Central 

• San Antonio: 29°N, 98°W, Central 

UTAH 

• Salt Lake City: 40°N, 111°W, Mountain 

• St. George: 37°N, 113°W, Mountain 

VERMONT 

• Burlington: 44°N, 73°W, Eastern 

• Manchester: 43°N, 73°W, Eastern 

VIRGINIA 

• Richmond: 37°N, 77°W, Eastern 

• Roanoke: 37°N, 79°W, Eastern 

• Virginia Beach: 36°N, 75°W, Eastern 

WASHINGTON 

• Port Angeles: 48°N, 122°W, Pacific 

• Seattle: 47°N, 122°W, Pacific 

• Spokane: 47°N, 117°W, Pacific 

WEST VIRGINIA 

• Charleston: 38°N, 81°W, Eastern 

WISCONSIN 

• Eau Claire: 44°N, 99°W, Central 

• Green Bay: 44°N, 88°W, Central 

• La Crosse: 43°N, 91°W, Central 

• Madison: 43°N, 89°W, Central 

• Milwaukee: 42°N, 87°W, Central 

WYOMING 

• Casper: 42°N, 106°W, Mountain 

• Cheyenne: 41°N, 104°W, Mountain 

ALBERTA 

• Calgary: 51°N, 114°W, Mountain 

• Edmonton: 53°N, 113°W, Mountain 

• Lethbridge: 49°N, 112°W, Mountain 

• Medicine Hat: 50°N, 111°W, Mountain 

• Red Deer: 52°N, 113°W, Mountain 

BRITISH COLUMBIA 

• Kamloops: 50°N, 120°W, Pacific 

• Kelowna: 49°N, 119°W, Pacific 

• Prince George: 53°N, 122°W, Pacific 

• Prince Rupert: 54°N, 130°W, Pacific 

• Vancouver: 49°N, 123°W, Pacific 

• Victoria: 48°N, 123°W, Pacific 

MANITOBA 

• Brandon: 49°N, 99°W, Central 

• Thompson: 56°N, 98°W, Central 

• Winnipeg: 49°N, 97°W, Central 

NEWFOUNDLAND 

• Corner Brook: 49°N, 58°W, Newfoundland 

• Gander: 48°N, 54°W, Newfoundland 

• Goose Bay: 49°N, 60°W, Atlantic 

• St. John's: 47°N, 52°W, Newfoundland 

NEW BRUNSWICK 

• Fredericton: 45°N, 66°W, Atlantic 

• Saint John: 45°N, 65°W, Atlantic 

NOVA SCOTIA 

• Halifax: 44°N, 63°W, Atlantic 

ONTARIO 

• Hamilton: 43°N, 79°W, Eastern 

• London: 43°N, 81°W, Eastern 

• Oshawa: 46°N, 78°W, Eastern 

• Ottawa: 45°N, 75°W, Eastern 

• Sault Ste. Marie: 46°N, 84°W, Eastern 

• Sudbury: 46°N, 80°W, Eastern 

• Toronto: 43°N, 79°W, Eastern 

• Thunder Bay: 48°N, 89°W, Eastern 

• Windsor: 42°N, 82°W, Eastern 

PRINCE EDWARD ISLAND 

• Charlottetown: 46°N, 63°W, Atlantic 

QUEBEC 

• Chicoutimi: 48°N, 71°W, Eastern 

• Montreal: 45°N, 73°W, Eastern 

• Quebec: 46°N, 71°W, Eastern 

• Rimouski: 48°N, 68°W, Eastern 

• Sept-Isles: 50°N, 66°W, Eastern 

• Sherbrooke: 45°N, 71°W, Eastern 

• Trois-Rivieres: 46°N, 72°W, Eastern 

• Val d'Or: 48°N, 77°W, Eastern 

SASKATCHEWAN 

• North Battleford: 52°N, 108°W, Central 

• Regina: 50°N, 104°W, Central 

• Saskatoon: 52°N, 106°W, Central 


page 40 

lighting controls



Event Schedules 

Relay Output # ___ 

Area Controlled: 

Time AM/PM Comments Action 

HI fc LOW fc M T W Th F Sa Su 














page 41 

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Event Schedules 


















page 42 

lighting controls


WRS-2224 Relay Scanner 

Introduction 

WRS-2224 Programmable Relay Scanner 

The WRS-2224 Scanner can be programmed so that when an input is signalled ON or OFF, it switches a 

specific group of output relays ON or OFF. The WRS-2224 has 5 inputs and 24 relay outputs. 

Each input can be have a unique relay group programmed to it. In addition to the basic ON and OFF 

commands, an input can have the optional switching features of 'Flick-Warn' and 'Time-Out'. 

24V Transformer 

Connections 

Relay Output Connections 

24 outputs, 12 per side. 

The relay scanner can be programmed 

with the built-in keypad to switch a group 

of relay outputs when signaled by an 

input. There are 5 groupings (5 inputs) 

available. 

Each group can support the FLICK WARN 

switching option, while only one group 

can be programmed to support the TIME 

OUT option. 

Digital Link Connection 

Allows the scanner to be linked to a network or another system. 

There are modules available for: 

a. RS-485 Network on new line Proprietary 

Communications Protocol; 

b. FTT-10 Network on new line Lonworks 


page 43 

Group Input Connections 

5 available, each controlling one relay 

group. 

Up to 6 low-voltage switching devices can 

be connected in parallel to each input. 

Separate electrically isolated 24V return 

connections provided for groups 1, 2 & 3 

and for groups 4 & 5. 

lighting controls


Relay Outputs 

24 output terminals 

(12 per side) are provided 

for individual relay control. 

Douglas 2-wire switches can 

be connected in parallel to 

permit individual control of a 

relay by a switch. 

Individual Output LEDs 

In NORMAL mode, LEDs display 

if the relay is ON or OFF. 

In PROGRAM mode, LEDs display 

if the relay is included in the 

group that is being programmed 

to the selected group input. 

Mode Select Buttons & LEDs 

NORMAL mode. 

PROGRAM mode. 

OPTIONS mode: 

a. FLICK WARN after OFF; 

b. TIME OUT after ON; 

c. TIME OUT with FLICK WARN. 

Directions 

Directions are printed on the 

keyboard for handy user reference. 


Parts & Dimensions 

Individual Output Buttons 

In NORMAL mode, use these buttons to 

switch the connected relay ON or OFF. 

In PROGRAM mode, use these buttons 

to enter or remove the connected relay 

to/from the group being programmed. 

Master Switch 0verride Buttons 

Use these buttons to switch all of 

the relays in a selected input 

group ON or OFF. 

Input Select Button 

Use this button to select the relay 

groups/switch inputs 1, 2, 3, 4 or 5. 

Group Switch Inputs (5) 

Connect Douglas 2-wire switches to 

switch the group of relays ON or OFF. 

You can connect up to 6 switches 

and/or 2-wire timer outputs to the 

same switch input. 

Digital Link Control Socket 

Plug-in for a RS-485 or Lonworks 

network interface such as a 

Douglas WNX-2624 module. 

Dimensions 

6.5" 

(165 mm) 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

4.0" 

(103 mm) 

Plan View 

1.75" 

(45 mm) 

Side View 

Relay Scanners mount to 35mm DIN rail 

installed in relay panels. 

Each unit is shipped with DIN mounting rail. 


page 44 

lighting controls





General 

Power: 

24VAC / 50mA Class 2 Low Voltage device. 

Power rating does not include power used to switch relays. 

Master Switches: 

There are 5 master switch inputs that are compatible 

with all models of Douglas relay switches. 

A maximum of 6 switches can be connected in parallel to 

the same master switch input. 

Maximum wire length for a master switch is 2000'. 

(600m) if using 18 AWG wire. 

Digital Link: 

Programmable scanners have a digital link socket 

that permits connection of network communication 

modules. 

Programming 

Use the membrane keypad built into the face of 

the programmable relay scanner to assign relay 

groups to each of the master switch inputs. 

Program settings (relay groups) are not lost in the 

event of a power outage. 

Programming directions are printed into the front 

cover for handy reference. 

Environment 

Indoors, stationary, non-vibrating, non-corrosive 

atmosphere and non-condensing humidity. 

Ambient operating temperature: 

0 O F to +120 0 F (-15 O to +50 O C). 

Outputs 

24 Douglas relay outputs. 

Outputs fire in sequence (



Switch Inputs 

Input Connections 

Connect the external group switching devices to the scanner's group 

inputs. If you are connecting 24V contact switching devices other 

than a Douglas switch or time clock, you must first configure the 

input for a 24V contact. Use the keyboard on the scanner, as 

detailed in 'Input Configuration' on page 48. 

A maximum of 6 switching devices can be connected in parallel to 

the same master input, with a maximum wire length of 

2000'/600m if using 18 AWG wire. 

After all the output relays have been assigned to lighting loads, 

determine which relays are to be switched together as groups. 

Use the keypad built into the front surface of the scanner to assign 

relay groups to be switched by each input. Refer to the scanner 

PROGRAMMING pages of this manual and the directions printed 

on the scanner for details. 

Switching with Momentary 

Contacts that use Diodes 

ON & OFF switching with contacts from another 

device or system is best accomplished with 

momentary type contacts that have a diode 

connected in series (one contact and diode for ON 

and another for OFF). 

Momentary contacts that utilize diodes have 2 

advantages: 

1. It is possible to have repeat ON or OFF 

commands. For example, during the night, an 

OFF signal could be issued every hour to ensure 

lights are swept OFF. 

2. Douglas relay switches can be connected in 

parallel for convenient override. 

Momentary contacts with diodes mimic the 

Douglas relay switch. Thus, the default input 

configuration of the WRS-2224 scanner is for 

the Douglas WR-8501 relay switch. 

Switching with 24V 

Momentary or Maintained 

Contacts (no Diodes) 

Inputs for the WRS-2224 can also be configured to 

accept 24V signals that have no diode connected. 

The signal can be momentary or maintained. 

When using the 24V contact control, be aware 

there are some restrictions. An input can be 

configured to switch relays ON when 24V is applied 

and OFF when it is removed. However, when this 

is the case it is not possible to send repeat OFF 

signals without an intervening ON signal. You can 

also configure the input so that only OFF signals 

are sent if a repeat signal is desired, although in 

this case there would be no ON signal. Should 

repeat OFF as well as ON signals be needed, then 

two 24V contacts would be needed with two 

inputs, one for the OFF signal and one for the ON. 

Refer to 'Input Configuration Mode' on page 6 for 

all the settings available for 24V contact control. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

Momentary ON Contact 

OFF Contact 

ON 

Diode 

OFF 

Diode 

Master Sw Override 

Red 

Douglas switch OK with 

momentary contacts. 

NOT OK with maintained 

contacts. 

Maintained Form C 

Contact Set 

Coil 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

NO NC 

COM 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

WRS-2224 

Relay 

Scanner 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

W B 

1 

2 

3 

Switch 

Inputs 

B 45 

B 

ON Diode 

OFF Diode 


page 46 

(OR) 

B 

W 

Tr 

Douglas Relay Switches 

The inputs of the WRS-2224 scanner 

are compatible with all models of 

Douglas relay switches. However, If 

you are connecting a different switch 

type, you must re-configure the input 

before connecting the switch. Follow 

the procedure described in the 'Input 

Configuration' section of this manual. 

When connected to the scanner, the 

LEDs of a Douglas switch will show the 

state of the relay group. If any of the 

relays in the group are ON, the group 

is defined as being ON and the red LED 

is lit. Only when all of the relays in the 

group are OFF is the group defined as 

being OFF and the green LED is lit. 

Take care when using Douglas WR- 

8501 switches. The WR-8501 push 

button switch will always send a signal 

that is opposite to its displayed state. If 

repeat ON or OFF control is desired, use 

the WR-8001 rocker switch which is 

able to select an ON or OFF signal. 

Douglas Timer Automation 

The inputs of the WRS-2224 scanner 

are compatible with Douglas timers 

such as the WTP-4408. When 

connecting a Douglas timer to the WRS- 

2224 scanner, the input must be 

configured for a Douglas relay switch 

(default). 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

WRS-2224 

Relay 

Scanner 

Switch 

Inputs 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

WR-8001 Rocker Switch 

W B 

1 

2 

3 

B 45 

B 

Red 

WR-8501 Pushbutton 

Switch with 

ON & OFF LEDs 

Esc 

WTP-4408 

A B C D 

1 2 3 

1 2 3 

4 5 6 

0 

5 A I H 

5 A I H 

47 58 69 

7 0 8 9 

Red 

Red 

Time Clock 

Maximum: 

6 switches 

9 

 

! 

"#$%& 

9 

* 

Clr 

B 

W 

Tr 

lighting controls



Programming 

NORMAL MODE 

Allows the connected relays to be switched with 

the scanner. 

Output Terminals 

Output Leds 

Output Buttons 

To Use Normal Mode: 

1. Make sure the individual relays are properly connected to the 

output terminals. 

2. The WRS-2224 Scanner will usually be in NORMAL mode. If left in 

PROGRAM mode, it will revert to NORMAL mode after 2 minutes. 

If the NORMAL MODE indicator LED is OFF, press its select 

button to exit the PROGRAM mode. The NORMAL MODE 

indicator LED should turn ON. 

3. In NORMAL MODE, the output LED will be ON if the connected 

relay is on. 

To switch any relay ON/OFF, press its output button. 

4. A flashing LED indicates: 

(a) There is a defect in the relay (or) 

(b) There are 2 relays connected to the same terminal with one 

relay ON and the other OFF. 

Normal Mode 

Select Button 

NORMAL MODE: Version Number Display 

When you are in NORMAL mode and press the NORMAL 

MODE select button, some output LEDs, as well as the 

button's indicator LED, will flash for 10 seconds. 

The combination of flashing output LEDs 1-8 (left output 

terminal) indicate the version number -in binary code- of 

the Relay Scanner. 

If any of the output LEDs 13-20 (right output terminal) are 

flashing, their combination indicates the version number 

-in binary code- of the WNX-2624 Network Node attached 

to the Scanner's Digital Link. 

1. Any flashing output LEDs 1-8 indicate the version number of 

the Relay Scanner, with any flashing LEDs 1-4 indicating the 

integer after the decimal point and any flashing LEDs 5-8 

indicating the integer before the decimal point. 

2. The combination of flashing numbers #1-4 and #5-8 denote 

the integer in binary code (see the insert at upper right). 

3. When a Network Node is attached to the Digital Link, some of 

the output LEDs 13-20 will be flashing. They indicate the 

version number of the Network Node, with the combination of 

flashing LEDs 13-16 indicating the integer after the decimal 

point and the combination of flashing LEDs 17-20 indicating 

the integer before the decimal point. 

4. See the insert at lower right for examples of flashing LED 

combinations for version numbers that may currently be in use. 

Binary Code 

BINARY CODE is a method of 

expressing all whole numbers as 

some combination of powers of the 

number 2. 

A power of 2 is the number of 

times 2 is multiplied by itself, where 

2 O =1, 2 1 =2, 2 2 =4, 2 3 =8, etc. 

In binary code, the number one 

would be 2 O , the number two would 

be 2 1 , the number three would be 

2 0 +2 1 (1+2), and the number four 

would be 2 2 . In like manner, you 

can express all whole numbers as 

either a power of 2 or as a combination 

of two or more powers of 2. 

Scanner Version # 

Node Version # 

LEDs Flashing 

3.0 #5, #6 

3.1 #1, #5, #6 

3.2 #2, #5, #6 

3.3 #1, #2, #5, #6 

3.4 #3, #5, #6 

LEDs Flashing 

4.0 #19 

4.1 #13, #19 

4.2 #14, #19 

4.3 #13, #14, #19 

4.4 #15, #19 

Equivalent 

Numbers Flashing LEDs 

0 = none (none flashing) 

1 = 2 0 first 

2 = 2 1 second 

3 = 2 0 +2 1 first & second 

4 = 2 2 third 

5 = 2 0 +2 2 first & third 

6 = 2 1 +2 2 second & third 

7 = 2 0 +2 1 +2 2 first, second & third 

8 = 2 3 fourth 


page 47 

lighting controls



Programming 

INPUT CONFIGURE MODE 

Allows specifying which type(s) of switching hardware can be 

connected to each group switch input. 

The default switch type for all inputs is the Douglas WR-8501 

with Led Indicators. This configuration is compatible with all 

models of Douglas relay switches, relay time clocks and photo 

cells and no re-configuration is necessary for those devices. 

However, if you will be connecting any different switch type(s) 

to an input, follow this procedure. 

To Use Input Configure Mode: 

1. Make sure NORMAL MODE is selected. Its top indicator light should be ON. 

2. Use the INPUT SELECT BUTTON to scroll to the group input #1-5 you 

wish to configure (when its INPUT LED is ON). 

3. Press and hold the OPTIONS MODE select button. The FLICK WARN LED 

will begin flashing. 

4. One of the OUTPUT LEDs #13-23 will display, showing the current 

configuration selected for the input. Refer to the table below for a list of all 

available configurations. The factory default is #21, the Douglas WR- 

8501 LED indicator rectified AC pulse switch. 

5. Depress the OUTPUT SELECT BUTTON(S) (#13-23) to select the desired 

configuration(s) for the input. 

You have 10 seconds to do this. After 10 seconds, the FLICK WARN LED 

stops flashing and the scanner reverts to NORMAL mode. 

6. Repeat steps 2-5 to configure other group inputs. 

Flick 

Warn 

LED 

Options Mode 

Select Button 

Output Buttons 

#13-#23 

Output LEDs 

#13-#23 

Input 

LEDs 

Normal Mode 

Select Button 

Input 

Select 

Button 

Output Button 

Pressed 

13 

14 

15 

Switch Type Configured for 

AC 

Momentary 

Contact. 

Action 

(13) - ON when switched 

(14) - OFF when switched 

(15) - OPEN=OFF / CLOSED=ON 

16 

17 

18 

Coil 

AC 

Maintained 

Contact. 

(16) - OPEN=ON / CLOSED=OFF 

(17) - OPEN=no action / CLOSED=ON 

(18) - OPEN=no action / CLOSED=OFF 

19 

(19) - OPEN=ON / CLOSED=no action 

20 

21 (Default) 

22 

23 

LEDs 

Rectified AC Pulse. 

Current for Indicator LEDs. 

NOTE: Non-LED switches are also 

compatible with this configuration. 

Rectified AC Pulse. 

No current for Indicator LEDs. 

NOTE: LED switches will not function 

properly with this configuration. 

Table 1. Switch Hardware Type 


page 48 

(20) - OPEN=OFF / CLOSED=no action 

(21) - Positive=OFF / Negative=ON 

(22) - Positive=ON / Negative=OFF 

(23) - Positive=OFF / Negative=ON 

lighting controls



Programming 

PROGRAM MODE 

Allows output relays to be grouped, with each group 

controlled by a switch input. 

Output 

Output 

To Use Program Mode: 

1. Make sure the output relays are properly connected to the output 

terminals and that the group switches and/or timer outputs are 

properly connected to the input terminals. 

2. Make sure NORMAL MODE is selected. The top indicator LED of 

the NORMAL MODE select button should be ON. 

3. Use the INPUT SELECT button to scroll to the desired input #1-5 

(when its indicator INPUT LED is ON). 

4. Press the PROGRAM MODE select button. Its indicator light will 

begin flashing. The OUTPUT LEDs of the relays that are controlled 

by the selected input will be ON. 

5. Add or remove output relays from the selected input by pressing 

the OUTPUT button of the desired relay. 

6. When you have selected all the relays for the group, press the 

NORMAL MODE select button to return to NORMAL mode. 

7. Repeat steps #3 - 6 to program other inputs with a relay group. 

NOTE: A relay can be in more than one group. 

8. When you are programming a relay group, you can include or 

exclude all the output relays by pressing the ON OVERRIDE or OFF 

OVERRIDE button, respectively. 

9. When you are in NORMAL mode, you can turn all the relays 

assigned to an input ON or OFF by selecting that input with the 

INPUT SELECT button, and then pressing the ON OVERRIDE or 

OFF OVERRIDE button. 

NOTE: 

If there is 2 minutes of inactivity during 

PROGRAM mode, the scanner will revert to 

NORMAL mode. 

To return to PROGRAM mode, press the 

PROGRAM MODE selectbutton. 

Input 

LEDs 

Program Mode 

Normal Mode 

Select Button 

ON Override 

Select Button 

OFF Override 

Select Button 

Input 

Select Button 

Input 

Terminals 


page 49 

lighting controls



Programming 

FLICK WARN OPTION 

Allows any relay group to have the FLICK WARN feature. 

FLICK WARN warns occupants that the lights will be switched 

OFF in 5 minutes. 

Occupants can cancel the OFF sweep for the local circuit by 

flicking the local switch. Or, they can cancel the OFF sweep for 

the entire group by pressing the group's input switch once. 

9 

12 

PM 

3 

FLICK WARN Sequence 

1 

2 3 4 

OFF 

6 

Sw 

Sw Sw Sw 

OFF Signal 

Lights flash to 

warn of OFF 

Occupant has 

5 minutes to 

cancel OFF 

If cancelled, 

lights stay ON 

If not cancelled, 

lights go OFF 

To Assign the Flick Warn Option: 


terminals and that the group switches and/or timer outputs are 

properly connected to the input terminals. 

2. Make sure NORMAL MODE is selected. Its top indicator LED should 

be ON. 

3. Use the INPUT SELECT button to select the desired group #1-5 


4. Press the PROGRAM MODE select button. Its indicator LED will 

begin flashing. If you have not already done so, select the output 

relays that belong to that input's group. 

5. Press the OPTIONS MODE select button once. The FLICK WARN 

indicator LED will turn on. (Pressing the OPTIONS MODE button 

will cycle the selections from FLICK WARN to TIME OUT to TIME 

OUT with FLICK WARN back to NO SELECTION.) 

6. Return to NORMAL mode. 

7. Repeat steps #3 - 6 to assign the FLICK WARN option to another 

group. 

8. For any group assigned the FLICK WARN option, the FLICK WARN 

indicator LED will be ON whenever the group is selected and the 

FLICK/TIME-OUT ACTIVE LED will flash whenever the flick warning 

operation is occurring. 

Flick Warn 

LED 

Output Mode 

Select Button 

Program Mode 

Select Button 

Input 

Select 

Button 

Time Out 

LED 

Input 

LEDs 

Normal Mode 

Select Button 

Flick/ 

Time Out 

Active LED 

To De-Assign the Flick Warn Option: 

1. Select the group (with INPUT SELECT). 

2. Go to PROGRAM mode. 

3. Press the OPTIONS button (usually 3 times) so that both the 

FLICK WARN LED and TIME OUT LED are OFF. 


NOTE: 

Assigning the FLICK WARN option to a relay group that 

controls any HID lighting is NOT RECOMMENDED. 

(HID lights require more than 5 minutes to turn ON after 

being turned OFF.) 


page 50 

lighting controls



Programming 

TIME OUT OPTION 

) M I A H A = O C H K F J D = L A J D A 6 1 - 9 7 D6AB A = ? J KJ EHLA A 

6 1 - 7 6 ? = K I A I J D A H A = O K J F K J 

J E A H M D A A L A H J D A ? A ? J A @ H A = O E I I M E J ? D A @ 

IMPORTANT 1 B J D A H A = O C H K F B = E F K J D = AI N FJ DE HA O 6 1 -D K 7H I6 = J A H J D A K J F K J I M E J ? D A I J D A 

B A = J K H A = I I E C A @ J not D A sM E EFJ ? K DJ MJ DE A H A = O C H K F 

1 I J A = @ J D A E F K J M E A = > A J D A 6 1 - 7 6 61 B -A = J K7 H6A EM I D JA OFE ? = O A = > A @ = @ @ E I = > A @ M E J 

J K H A @ = @ @ E I = > A J D A 6 1 - 7 6 B A = J K ? H A M DA A? J A J@ K HJ A J@ D A BEB F K J ) I = ? A N = F A 

? ? J A = > A 6 1 - 7 6 @ K H E C ? I A @ D K H I 

I M E J ? D A I M E M H H = O @ K H E C > K I E A I I D 

M E J D 6 1 - 7 6 @ K H E C ? I A @ D K H I 

1 

PM 

9 

Mode 

Change 

12 

6 

Sw 

3 

TIME OUT during Closed Hours 

2 3 4 

Sw 

Sw 

Sw 

5 

9 

OFF 

12 

6 

3 

AM 

Sw 

6 

Sw 

TIME OUT mode 

enabled at start of 

closed hours 

Light turned ON 

with wall switch: 

timer starts 

Exit without 

switching OFF 

Timer expires, 

lights switched OFF 

TIME OUT mode 

disabled at start of 

business hours 

Switches work normally 

(no TIME OUT) during 

business hours 

To Assign the Time Out Option: 


terminals and that the timer output is properly connected to the 

selected input terminal. 

2. Make sure NORMAL MODE is selected. Its top indicator LED should be ON. 

3. Use the INPUT SELECT button to select the designated group #1-5 


4. Press the PROGRAM MODE select button. Its indicator LED will begin 

flashing. If you have not already done so, select the output relays that 

belong to that input. 

5. Press the OPTIONS MODE button until the TIME OUT indicator LED 

turns ON. (Pressing the OPTIONS MODE button will cycle the 

selections from FLICK WARN to TIME OUT to TIME OUT with FLICK 

WARN back to NO SELECTION.) 

6. If you want to assign the TIME OUT option with a FLICK WARN to the 

group, press the OPTIONS MODE button until both the TIME OUT and 

the FLICK WARN indicator LEDs are ON. 


8. For the group assigned the TIME OUT option, the TIME OUT indicator 

LED will be ON whenever the group is selected, and the FLICK/TIME 

OUT ACTIVE LED will flash whenever the TIME OUT operation is 

occuring. 

NOTE: 

Only one group can be assigned the TIME OUT option. If 

more than one group is assigned TIME OUT, those groups 

will not respond to input or override switch commands. 

It will be necessary, in that case, to shut off and restart the 

Relay Scanner, and then re-program all of the input groups 

with only one all-inclusive group assigned TIME OUT. 

To De-Assign the Time Out Option: 

1. Select the group (with INPUT SELECT). 

2. Go to PROGRAM mode. 

3. Press the OPTIONS button so that both the TIME OUT and the 

FLICK WARN indicator LEDs are OFF. 


Flick Warn 

LED 

Output Mode 

Select Button 

Program Mode 

Select Button 

Input 

Select 

Button 

Time Out 

LED 

Input 

LEDs 

Normal Mode 

Select Button 

Flick/Time Out 

Scanner Input 

When set in TIME OUT mode, 

the time clock enables TIME OUT 

with an ON signal and disables 

TIME OUT with an OFF signal. 

Relays that are assigned to the 

group are not switched. 

Esc 

WTP-4408 

Time Clock 

A B C D 

1 2 3 

1 2 3 Clr 

4 5 6 

9 

47 85 96 

 

7 0 8 9 ! 

"#$%& 

0 

5 A I H 

5 A I H 

9 

* 


page 51 

lighting controls

OPTIONS 

PGM 

MODE 

NORMAL 

MODE 

INPUT 

SELECT 

ON 

OVERRIDE 

OFF 

OVERRIDE 


Connections 

The WRS-2224 Programmable Relay Scanner permits a 

group of relays to be controlled with a single switch. The 

scanner can support up to 5 groups of relays, each 

controlled by one of 5 switch inputs. 

In this example, the 24 output relays are divided into 4 

groups, with each group controlling the lights in an area, or 

zone, of the Office. Group 1 controls the lights in the NW 

Quadrant (shaded area in Ceiling Plan). Group 2 controls the 

SW Quadrant, Group 3 the NE Quadrant and Group 4 the SE 

Quadrant. The Core circuits are controlled directly by a 

switch in the Group Switch Station. 


Office Floor -Reflected Ceiling Plan 

Office 

Office 

Sw 

Sw 

Office 

Office 

Sw 

NW Quadrant 

Sw 

Office Office Office 

Library 

Hall 

Storage 

Connections 

Zones 

NW Quadrant NE Quadrant 

Office 

Core 

SW Quadrant SE Quadrant 

NE Quadrant 

Office 

Office 

Use the keypad built into the front of the scanner to assign 

the relay groups. Changes to relay groups are easy to 

accomplish with the keypad; no rewiring is necessary. In this 

example, Relays #1-6 are assigned to Group 1. 

Install wall switches to provide for occupant override. They 

can be either individual wall switches connected directly to 

the relays or group switches connected to the scanner 

inputs. 

In this example, Relays #1-6, which comprise Group 1, are 

each connected to a wall switch in a Private Office, as shown 

in the diagram on the previous page. 

Office 

Sw 

Office 

Office 

Hall 

Sw 

Hall 

Reception 

Office 

SW Quadrant 

Core 

Mens 

Womens 

Hall 

Hall 

Elevator 

Photo 

Copy 

Office 

Office 

Hall 

SE Quadrant 

Office 

Office 

Office 

Another application, which can yield significant energy 

savings, is the use of the TIME OUT feature. During any 

period TIME OUT is activated, any lights in the designated 

TIME OUT group that are left on for 2 hours will be switched 

OFF automatically. 

In this example, Group 5, to which all of the relays on the 

floor are assigned, is programmed for the TIME OUT option. 

TIME OUT will be activated and de-activated by the WTP- 

4408 Timer connected to Group 5's input terminal. 

The scanner can be set to provide groups with FLICK WARN, 

in which the lights flick to warn occupants they will be 

automatically shut off in 5 minutes. Occupants can then 

cancel the OFF sweep by flicking the local switch or by 

pressing the group switch once. 

In this example, each of Groups #1-4 is programmed for 

FLICK WARN which is to occur 5 minutes before the OFF 

sweep time designated for that group by the WTP-4408 

Timer. Group #5 is programmed for the FLICK WARN along 

with the TIME OUT option, so its flick warning will occur with 

any lights left on 2 hours when TIME OUT is enabled. 

Office Office Office Office Office Office 

Group 1 

Relay # 

1 

2 

3 

4 

5 

6 

Individual 

Switches 

Lighting 

Circuit 

NW Priv Office 



Library 



White 

Relays 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

Outputs 

1 

3 

5 

7 

9 

11 

2 

4 

6 

8 

10 

12 

14 

16 

18 

20 

22 

24 

13 

15 

17 

19 

21 

23 

WRS-2224 

Relay 

Scanner 

Inputs 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

W B 

WTP-4408 

Time Clock 

1 

2 

3 

B 45 

B 

Transformer 

W 

B 24VAC 

Relays 

Group 

Switch 

Station 

NW 

Quad 

SW 

Quad 

NE 

Quad 

SE 

Quad 

Core 

Core 

Core 

A B C D 

1 2 3 

1 

4 

2 

5 

3 

6 

Esc 

Clr 

47 85 96 

7 0 8 9 

9 

 

! 

"#$%& 

0 

5 A I H 

5 A I H 

9 

* 

W 

24VAC 

Power 


page 52 

lighting controls



Troubleshooting 

WRS-2224 Troubleshooting Guide 

General Guidelines: 

Make sure that 24V power exists (always measure between 22V and 

30VAC); 

Make sure all inputs and outputs are tightly connected; 

Make sure all relay groups are programmed correctly; 

If non-default input switching devices are used, make sure all inputs are 

configured properly. 

Problem Encountered 

Flashing output LED(s) 

during NORMAL mode 

Output relay(s) not 

tripping properly 

Possible Cause(s) 

Defective output relay 

2 relays connected to same output 

with one relay ON and the other OFF 

External AC current leaking into circuit 

Improper input voltage (must be 

between 22V and 30VAC) 

Input(s) not configured when non-default 

input switching device(s) used 

Relay(s) also part of another input group 

with contradictory input signals 

Relay(s) not included in input group 

Corrective Action 

- replace relay 

- reset relays 

- if either relay is in another input group, 

remove it from that group 

- check wiring 

- check input configuration 

- check input switching device(s) and connections 

- check power source 

- configure input(s) per instructions on page 6 

- remove relay(s) from other group 

- check programming, re-program if necessary 

FLICK WARN not working 

FLICK WARN not properly programmed 

HID lighting used in FLICK WARN group 


- use circuits with non-HID lighting 

TIME OUT not working Inappropriate input switching device used - make sure input is only ON during TIME OUT period 

- use timer as input instead of switch 

Relay group not programmed properly 


TIME OUT assigned to more than one group 

- assign TIME OUT only to one all-inclusive group 

Table 2. WRS-2224 Troubleshooting Guide 


page 53 

lighting controls


WR-6161 HID Relay 

Manual Switch 

Lever & Indicator 

Load 

Terminals 

PART No. 

WR-6161 

WR-6161-382 

WR-6172 

WR-6172-382 

2-wire HID Relays 

DESCRIPTION 

 

Douglas relays are 2-wire latching 

relays that are lighting load rated for 

standard 20A branch circuits. 

 

Douglas 2-wire heavy duty HID relays 

are suitable for all types lighting loads 

including capacitor corrected HID ballasts. 

 

Manual operation lever and indicator 

are built-in for convenient operation 

and status check at the panel. 

 

Douglas HID relays are available with 

auxiliary contacts on the low voltage 

side of the relay. Contact not required 

for Douglas system, but may have 

application for specialty requirements. 

 

Douglas HID 2-pole relay is available 

with a 480V rating intended for 480V 

lighting applications. 

1 pole HID relay 

20A : 120/277/347 

1 pole HID relay with aux contacts 

20A : 120/277/347 

(aux contacts 1A : 125VAC) 

2 pole HID relay 

20A : 120/277/347/480 

2 pole HID relay with aux contacts 

20A : 120/277/347/480 

(aux contacts 1A : 125VAC) 

Low Voltage 

Terminals 

Auxiliary Contacts 

(WR-6161-382 only) 

Technical Data 

SPECIFICATION 

Control Input 

 

Class 2 circuit. 

 

0.350A (350mA). 

 

24 volt reversible polarity pulse. 

 

Input terminals: #16 - #20 AWG. 

Output Contact Ratings 

 

More than 30,000 operations with 

20A load, 2000A inrush 

@ 20 times / min. switch speed. 

 

UL Listing 

20A 300 VAC 

2400 W 120 VAC "T" 

20A 300 VAC "F" 

20A 480 VAC "F" (WR-6172 only) 

UL Endurance Test 150,000 cycles 

SCCR Rating: 

14KA (WR-6161, WR-6161-3) 

5KA (WR-6172, WR-6172-3). 

 

CSA Certifications 

20A 347 VAC 

2400 W 120 VAC "T" 

20 A 347 VAC "F". 

 

Output terminals: #10 to #14 AWG. 

Environment 

 

Indoors, stationary, non-vibrating, 

non-corrosive atmosphere and noncondensing 

humidity. 

 

Ambient temperature: 

-20°F to +120°F (-28°C to +50°C). 

Note: 

 

The 2 pole relay (WR-6172) has the 

same input ratings as the 1 pole 

relay. Use this feature to double the 

load switching capacity of a low 

voltage switch. 

DIMENSIONS & MOUNTING 

 

WR-6100 series relays mount to a 

snap rail built into Douglas PWEx 

series relay panels. 

WR-6161 

WR-6161-3 

0.98" 

(25) 

CONNECTIONS 

Lights 

H 

Breaker 

Tr 

24V 

Relays 

White 

Blue 

Red 

Limit of 6 

switches 

per relay. 

Switches 

Tr 

24V 


page 54 

Sw 

Sw 

Sw 

Sw 

Sw 

Sw 

Lights 

H 

Breaker 

Relays 

White 

Blue 

Red 

Limit of 4 relays 

per switch. 

(Limit is 8 with 

WR-8001 Sw.) 

Switches 

Sw 

One Pole 

Size 

WR-6172 

WR-6172-3 

Two Pole 

Size 

3.8" 

(97) 

3.8" 

(97) 

2.4" 

(60) 

1.97" 

(50) 

2.4" 

(60) 

lighting controls


2-wire HID Relays 


2-WIRE RELAY TECHNOLOGY 

Douglas 2-wire relays utilize an ingenious control method that 

permits simple and minimal wiring. All functions for low voltage 

control: on, off, indication and location are provided with 

only a 2-wire connection of which one is often a common. All 

Douglas relays manufactured over the past 30 years utilize the 

same principle. Thus, any Douglas switching device is 

compatible with any model of Douglas relay. 

Operational Principle 

A negative pulse turns the relay ON and a positive pulse turns it 

OFF. Using a diode, an AC signal can be rectified to turn the relay 

either ON or OFF. Douglas switches have 2 diodes built into the 

switch to provide the ON and OFF signals. 

The relay has 2 similar diodes built inside that are in series with the 

relay coil. The diodes in the relay act as gates for the switch signal. 

To turn the relay ON or OFF, the rocker switch completes the circuit 

by selecting the ON or OFF diode. If the diode selected is in the 

same direction as the gate diode in the relay, the relay will switch. If 

the gate diode is not in the correct direction, then nothing will 

happen since the relay is already in the correct state for the action 

selected by the switch. When the switch is released, a spring returns 

it to the central neutral position. 

Indication (ON state) and location (OFF state) are obtained by 

utilizing LED diodes built into the switch. Only the LED which is 

connected in the same direction as the gate diode in the relay will 

light. Although the LED current passes through the relay coil, it is 

not large enough to cause the relay to trip. However, there is a limit: 

the maximum number of LED switches that can be connected to the 

same relay is 6. 

For additional convenience (especially during installation) all standard 

models have a manual control lever and indicator permitting a nonelectrical 

method of switching and status check at the panel. 

Manual 

Lever 

Detailed 2-wire Relay / Switch Circuit 

Transformer 

24VAC 

Latch to lock relay ON 

or OFF (actually done 

with magnetics) 

Tr 

W 

B 

W 

B 

Relay 

Blue 

2-wire 

Relay 

Red 

Gate Diodes 

Relay Coil 

White 

2-wire Switch 

Switch 

Control Diodes 

Switch 

Switching ON 

Switch pressed to ON position. 

ON pulse ( ) sent to relay and 

relay begins to switch over to ON. 

Tr 

W 

B 

Switch 

Detailed LED Switch Circuit * 

Transformer 

24VAC 

W 

B 

Blue 

White 

LED 2-wire Switch 

ON 

ON 

Relay 

Switched ON 

Relay completed switching to ON position. 

OFF gate diode engaged and ON pulse 

from switch is stopped by OFF gate diode. 

Relay ready for OFF pulse. 

2-wire Relay 

Red 

Gate Diodes 

Relay Coil 

OFF 

OFF 

Control 

Diodes 

LED 

Indicator Diodes 

Current limiting 

Resistor 

Tr 

W 

B 

Switch 

* 

LED Switch circuit actually not 

as shown. Switch is functionally 

similar except rocker switch is 

replaced with single push button. 

Relay 

Switching OFF 

Switch pressed to OFF position. 

OFF pulse ( ) sent to relay and 

relay begins to switch over to OFF. 


page 55 

lighting controls


PART No. 

PWEx Relay Panels 

DESCRIPTION 


SPECIFICATION 

PWEx Panels 

 

Douglas PWEx series relay panels are 

a versatile line of panels used for 

WR- 6161and WR-6172 relays. 

 

Standard sizes range from 6 to 72 relays. 

(Note: WR-6172 = 2 relays). 

 

A panel consists of the enclosure (tub), 

the interior and the cover. Enclosures 

are installed in the rough-in stage and 

interiors are installed and connected 

after wires are pulled. 

 

Interior has snap brackets for mounting 

relays and DIN rail in the centre for 

mounting control components. 

 

Box knockouts are located so that 

panels of the same horizontal or 

vertical dimension can be joined with 

conduit nipples. 

 

Enclosures and covers are made of 

steel coated with ANSI/ASA 61 Grey. 

Coating is heat fused polyesther epoxy 

finish applied on all surfaces. 

 

Interior insert is made from aluminium, 

steel and plastic parts. 

Certifications 

 

UL listed, CSA approved 

 

EEMAC/NEMA 1 Standard 

Options 

 

Hinged, surface or flush covers. 

Covers are reversable for either left-toright 

or right-to-left door opening. 

 

Driphoods (surface mount only). 

 

NEMA 3 standards. 

 

Special paint colors. 

 

Voltage dividers to divide line voltage 

compartment for different line voltages. 

PWEx Panel Numbering System 

Enclosure 

PWEx 

Interior 

C 

xx 

W 

Box Code 

Capacity 

Barrier Layout Relay Code 

Compartment: C HID relays: M 

Wireway: W 

M 

Cover 

S1 

or 

F2 

Screw-on 

Surface: S1 

Flush: F2 

S3 

F4 

Hinged 

Surface: S3 

Flush: F4 

Compartment Style 

Barrier Layout 

CAPACITY 

PART No. 

SIZE (H x W x D) 

4" 

4" 

4" 

6 12 24 

PWE0 - C06M - ** PWE1 - C12M - ** PWE2 - C24M - ** 

12 x 12 x 4.25 20 x 14 x 4.25 33 x 14 x 4.25 

Add cover style number at end of P/N 

** 

4½" 3" 

Used for WLCP-24WST-S3 

4½" 

3" 

4½" 

3" 

4½" 

3" 

Symbols 

Low voltage area 

Line voltage area 

HID relay 

Transformer 

Wireway Style 

Barrier Layout 

CAPACITY 

PART No. 

SIZE (H x W x D) 

6" 

24 

PWE3 - W24M - ** 

27 x 20 x 4.25 


page 56 

** Add cover style number at end of P/N 

6" 6" 

36 48 72 

PWE4 - W36M - ** PWE6 - W48M - ** PWE8 - W72M - ** 

33 x 20 x 4.25 39 x 20 x 4.25 

7" 

54 x 20 x 4.25 

lighting controls


PWEx Relay Panels 


PWEx Panels: Exploded View 

Drip Shields 

Optional, surface cover 

panels only. 

Screw-on 

Covers 

Hinged Covers 

Surface (S1) or 

Surface (S3) or Flush (F4). 

Flush (F2) 

Install right side up or upside down 

for right-to-left or left-to-right door. 

The inner trim of the hinged cover 

covers over all of the line voltage wiring. 

Access to the relay's manual control 

levers is in the low voltage compartment. 

Relay Interior 

Relays mount to HID snap rails. 

Barriers are located to provide the 

line / low voltage division. 

Transformers mount to 1/2" knock 

outs located in the barrier. 

Control components are mounted 

to DIN rail in center of interior. 

Pre-assembled PWEx panels will 

have panel schedules completed 

according to information provided 

and all low voltage control 

connections pre-wired. 

Stacking Panels 

Panels of equal dimension on a 

side have matching KO pattern 

to provide easy stacking. 

INSTALLATION & ASSEMBLY 

PWEx series relay panels for Douglas HID relays are supplied 

with a separate interior. All of the components and barriers are 

mounted to the interior. 

PWEx panels are primarily intended for projects where the interior 

is factory pre-assembled. To install the relay panel the following 

sequence is recommended: 

1) Mount the empty enclosure onto the wall and pull wires. It is 

recommended that all (or most) of the wires be pulled prior to 

installing the interior. This will prevent component damage 

from the wire pulling operation. 

2) Relay line voltage terminals are sized for a maximum of 

12AWG wire. 

For low voltage wiring 18AWG solid is recommended. 

3) Once the wires have been pulled, install the interior and bolt it 

into place. Make line connections to relays according to the 

panel schedule provided. If there is no schedule, identify 

circuits on a blank schedule. 

4) To test circuit, turn circuit breaker off, use manual lever to turn 

relay on and then turn on the circuit breaker. This will help 

prevent relay contact welding due to dead shorts. 

5) Verify that the schedule matches the lights operated by the 

relay. 

6) Once the line circuits are connected and verified, connect low 

voltage switch wiring to relays or devices. 


page 57 

lighting controls


CONNECTIONS 

Lights 

H 

Breaker 

Transformer 

24VAC 

W 

B 

Relays 

White 

Blue 

Red 

PART No. 

WR-4075-120/277 

WR-4075-120/347 

WR-4040-120 

DESCRIPTION 

The transformer supplies the switching 

power for Douglas 2-wire relay control. 

2-wire relays are latching type and only 

require power to switch on or off. Thus, 

ONE transformer is sufficient to service 

many relays and devices. 

WR-4075 Series: Standard Duty 

 

40VA steady draw, 75VA pulsed draw. 

 

Current limiting and internally fused with 

an automatically resetting thermal fuse. 

120/277V Primary : 24VAC* Secondary 

120/347V Primary : 24VAC* Secondary 

WR-4040 Series: Light Duty 

 

40VA steady draw, 40VA pulsed draw. 

 

Current limiting and internally fused with 

a one time event fuse. 

120V Primary : 24VAC Secondary 

One-way Measurement - feet (meters) 

Transformers 

* Secondary voltage varies from 

24V to 29V depending upon load. 

Sw 

Input 

 

Line voltage 120, 240, 277 or 347 V. 

Select correct model for line voltage. 

Output 

 

24VAC at full load. 

At no or low loads, the voltage is 29V. 

As the current draw increases, the 

transformer voltage decreases. 

A fully loaded class 2 transformer will 

output 24V. 

 

Douglas products are designed to 

operate correctly over the entire range 

of voltages provided by the transformer. 

Class 2 - Current Limiting 

 

Transformers that are approved for 

powering Class 2 circuits are current 

limited to prevent excessive currents 

caused by shorts. This is a key safety 

feature to help prevent fires from shorts. 

 

The Class 2 current limiting feature 

permits the use of wire that is of a light 

gauge and has less stringent insulation 

requirements. 

Environment 

 

Indoors, stationary, non-vibrating, noncorrosive 

atmosphere and noncondensing 

humidity. 

 

Ambient temperature: 

-20° to +120°F (-28° to +50°C) 

Approvals & Certifications 

 

UL Approved 

 

CSA Certified 

 

Douglas transformers have a nipple & 

mounting nut suited for a 7/8" hole 

(1/2" pipe hole & tread size). 

3.15 


SPECIFICATION 

DIMENSIONS & MOUNTING 

WR-4075 

Series 

Transformers 

WIRE DISTANCE CHART - 18Ga Wire 

2.56 

6"wire 

Number of Relays 

per Switch 

1.5A & 3.0A rated switches 

(WR-8001, WR-8501, WR-8503) 

1 

2 

3 

Wire Length 

One way measure 

in feet (meters) 

2000 (600) 

1500 (450) 

1000 (300) 

Wire Gauge 

American 

Wire Gauge 

18 AWG 

18 AWG 

18 AWG 

2.38 

3.15 

WR-4040 

Series 

Transformer 

4 

500 (150) 

18 AWG 

2.00 

6"wire 

3.0 A rated switches 

(WR-8001, WRK-8201, élan Series) 

6 

8 

300 (90) 

160 (50) 

18 AWG 

18 AWG 

2.87 


page 58 

lighting controls


H 

Breaker 

Lights 

Relay Panel Schematic 

Transformer 

24VAC 

W 

B 

Relay 

Relay Panel 

Switching from 

many Locations 

Sw 

Sw 

Sw 

Transformers 


TRANSFORMER LOADS 

Douglas relays do not use any power while in the latched on or 

off state. Power is only used when the relay switches over. 

In the vast majority of cases, only 1 transformer per relay panel 

will be all that is required. Theoretically, there is no limit to the 

amount of relays that can be switched by 1 transformer. 

There are Douglas devices other than relays that do use low 

amounts of steady state power. For example, the LEDs of the 

LED style switches use power. Relay scanners, time clocks, 

and other electronic devices also use power. If a large number 

of these devices are powered by one transformer, do a 

"LOADING CALCULATION" to ensure that there is no overload. 

In the rare case there is an overload, split the circuits and use 

more than 1 transformer. 

Relays 

Relay 

Scanner 

Transformer Loading Diagram 

Steady loads are deducted from current limit to determine 

momentary current available relay switching. 

3000mA 

Electric current available for 

switching relays and for 

losses due to wiring lengths. 

W B 

1600 mA 

700 mA 

0 mA 

Switching 

Large Loads 

Sw 

Switching from 

a Distance 

Sw 

Switching 

Control Devices 

(Group Switching) 

Sw 

Switching 

Individual Loads 

Sw 

Sw 

Momentary 

Switching 

current limit 

(75VA or 3000mA) 

(WR-4075 series only) 

Steady state 

current limit 

(40VA or 1600mA) 

300mA 400mA 

100 LED 

Switches 

2 Scanners & 

1 Photocell 


page 59 

LOADING CALCULATIONS 

If a large number of devices are being connected to a 

transformer, check to ensure that the transformer loading is 

correct. The example shown below illustrates the method of 

calculation. 

EXAMPLE: A system has the following components. 

100 LED switches 

48 2-wire relays 

2 Relay scanners 

1 Photocell controller 

Check how many relays can be switched at one time. 

A) Calculate the maximum number of relays that can be 

switched at one time ignoring wiring distance: 

1) Total the steady state current requirement 

Led Switches 100 x 4mA = 400mA 

Relays 48 x 0mA = 0mA 

Relay Scanners 2 x 100mA = 200mA 

Photocell Controller 1 x 100mA = 100mA 

700mA 

2) Check that the steady state current requirement does not 

exceed 1.6 Amperes. In the rare cases that the steady 

state current exceeds 1.6 A, extra transformers will have 

to be added and circuitry will have to be split. 

For this example, the steady state current is 700mA 

which is less than 1.6 amperes (1600mA). 

3) Subtract the steady state current from the total 

momentary current available to obtain the amount of 

current available for switching relays. 

Total current available form a WR-4075 series 

transformer for a momentary switching pulse is 

3000mA (75VA). 

For this example, the current available for switching 

relays is 2300mA (3000 - 700). 

4) Divide the total available relay current by the current 

draw of a relay (350mA) to obtain the maximum number 

of relays that can be switched at one time. 

2300 ÷ 350 = 6.57 - Round the answer down to 6 relays. 

B) The maximum number of relays that can be switched at one 

time is either the value obtained by the above calculation or 

the value determined by the maximum wiring distance 

allowed - WHICHEVER IS LESS. 

If the wire distance is 600 feet and the wire gauge is #18 AWG, 

then the limit is 4 relays, not 6 relays (see wire distance 

chart). 

lighting controls

DOUGLASR 

lighting controls 

www.DouglasLightingControls.com 

4455 Juneau Street • Burnaby, B.C. • CANADA 

phone: (604) 873-2797 • fax: (604) 873-6939 

WARRANTY 

DOUGLAS products are warranted for one year from the 

date of purchase by the consumer against defects due 

to materials and the company's worksmanship only. The 

sole obligation hereunder shall be to repair, or at the 

company's option to replace, products as aforesaid, 

provided same are returned, upon authorization, 

'Transportation Prepaid' to the company's Burnaby, 

CANADA office within the said period. Defects or failures 

due to improper or careless installation, storage or 

handling, or usage other than rated conditions, are 

specifically excluded from this warranty. No liability is 

accepted for return transportation charges following 

repair or replacement as aforesaid or for reinstallation 

costs. No other liability of any nature or kind, whether 

arising out of or from the use of the product, whether or 

not defective, is assumed. 

DOUGLAS lighting controls reserves the right to cancel or 

change items shown in this publication without notice.

WLCP-36WST-S3

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