Elster LCR-212 Single Phase Load Control ... - Essential Energy

Elster LCR-212 Single 

Phase Load Control 

Ripple Receiver: 

Installation & Use 

March 2011 

22 March 2011 

ISSUE 3 

UNCLASSIFIED 

UNCONTROLLED COPY IF PRINTED

UNCLASSIFIED 

OPERATIONAL PROCEDURE - Elster LCR-212 Single Phase 

Load Control Ripple Receiver Installation and 

Use 

CEOP8086 

PREPARED BY: 

LOAD CONTROL OFFICER 

AUTHORISED BY: 

GROUP M ANAGER T ECHNICAL S ERVICES 

ASSISTANCE: 

LOAD CONTROL C OORDINATOR 

DOCUMENT NUMBER: CEOP8086 - ISSUE 3 

This plan is copyright. No part may be reproduced by any process without written permission, 

except as permitted under the copyright act. 

DISCLAIMER 

1 Essential Energy may change the information in this document without notice. All changes 

take effect on the date made by Essential Energy. A print version is always an uncontrolled 

copy. Before using this document, please ensure that it is still current. 

2 This document may contain confidential information. Restrictions on the use and disclosure 

of confidential information by employees are set out in your contract of employment. 

Restrictions on the use and disclosure of confidential information by contractors are set out in 

your contract of engagement with Essential Energy. Sub-contractors are bound by the 

confidentiality provisions set out in their contract with the contractor engaged by Essential 

Energy. 

2011 E SSENTIAL E NERGY 

22 March 2011 - Issue 3 

Approved By: General Manager Technical Services 

Page 2 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

CONTENTS PAGE 

1 INTRODUCTION ........................................................................................... 5 

2 FEATURES OF THE LCR-212 LOAD CONTROL RECEIVER ..................................... 5 

2.1 Receiver Indications ......................................................................................6 

2.2 Receiver Connections and Installation Instructions.............................................7 

3 OPERATING PRINCIPLE ................................................................................. 7 

3.1 Decoder ......................................................................................................7 

3.2 Time Base ...................................................................................................8 

3.3 Internal Clock ..............................................................................................8 

3.4 Microcontroller .............................................................................................8 

3.4.1 Memory.................................................................................................. 8 

3.4.2 Serial Interface........................................................................................ 8 

3.5 Power Supply ...............................................................................................8 

3.6 Output Relays ..............................................................................................8 

3.7 Real Time Clock (Optional).............................................................................8 

4 RECEIVER FUNCTIONS .................................................................................. 9 

4.1 Switching On/Off ..........................................................................................9 

4.2 Restoration of Supply ....................................................................................9 

4.3 Loss of Supply..............................................................................................9 

4.4 Wiping Timer ...............................................................................................9 

4.5 Cyclic Switching............................................................................................9 

4.6 Signal Absence Sensing (SAS) ...................................................................... 10 

5 SCOPE OF FUNCTIONS .................................................................................10 

5.1 Conventional Decoder.................................................................................. 10 

5.1.1 Number of Switching Commands...............................................................10 

5.1.2 Multiple Switching Commands ..................................................................11 

5.1.3 Memory Function ....................................................................................11 

5.1.4 LOOP Function........................................................................................11 

5.1.5 Timer Function without VERSACOM ...........................................................11 

5.2 VERSACOM Decoder.................................................................................... 11 

5.2.1 VERSACOM Function ...............................................................................11 

5.2.2 Timer Function with VERSACOM ................................................................12 

5.2.3 Special Features .....................................................................................12 

6 RIPPLE CONTROL SYSTEMS ..........................................................................12 

7 RECEIVER STATUS ......................................................................................13 

8 MECHANICAL DESIGN ..................................................................................13 

9 PROGRAMMING AND TEST EQUIPMENT ..........................................................13 



Page 3 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

9.1 Attachment A - Technical Data of the LCR-212................................................ 15 

9.2 Attachment B - Wiring Diagram and Installation Template ................................ 16 

10 KEY TERMS AND DEFINITIONS ......................................................................17 

11 REVISIONS.................................................................................................17 



Page 4 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

1 INTRODUCTION 

To introduce a standard arrangement for the installation and use of the Elster LCR-212 

Single Phase Load Control Ripple Receiver across Essential Energy. 

The scope of this document covers the use of the LCR-212 receiver to switch and control 

electrical load for tariff and real time load control functions. 

This Code of Practice forms an integral part of Essential Energy’s standard load control 

ripple receiver arrangements and will ensure a common approach to both the programming 

and commissioning of ripple control receivers. 

2 FEATURES OF THE LCR-212 LOAD CONTROL RECEIVER 

• Use of a fully digital filter for selection of the audio frequency 

• Processing of all conventional ripple control protocols 

• Processing of a second protocol with secured data transmission 

• Integrated timer for autonomous running of work schedules, also as a function of days 

of the week 

• Remote definition of switching time parameters 

• Enabling and disabling of work schedules 

• Timer buffering via a real time clock with supercap 

• Memory function as a backup 

• Bottom connected 

• Programmable. 



Page 5 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

2.1 Receiver Indications 

LED Indications 

The LCR212 has two Led’s to indicate the function and the status of the receiver. 

LED 1: (green) indicates evaluation of audio frequency pulses. 

LED 2: (red) indicates the corresponding function status of the receiver as follows: 

0.2 seconds ON/1.8 seconds OFF flashing rate normal functioning without AF signal. 

0.5 seconds ON/0.5 seconds OFF flashing rate processing of a cyclic switching command. 

The red LED shows steady light during reception of a telegram. 



Page 6 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

2.2 Receiver Connections and Installation Instructions 

The receiver connection and installation instructions are shown below. 

Under all circumstances, single phase loads only are to be connected to the receiver output 

relays. Control of multi-phase loads such as poly-phases motors, etc, must be carried out 

via a separate external multiphase contactor controlled by one of the three available output 

relays. 

For installations with multiple phases available to them, the individual single phase 

controlled loads may be balanced across the available phases by using the multiple output 

relays. For this arrangement, it is still a requirement that one active of one of the available 

phases is looped to the receiver active link as per the connection and installation instruction. 

It should be noted that installation and connection instructions are provided with each new 

receiver and these guidelines must be adhered to. The guideline also acts as a drilling 

template for the receiver footprint. 

3 OPERATING PRINCIPLE 

3.1 Decoder 

The LCR212 processes all standard ripple control protocols and is also capable of handling a 

second protocol with secured data transmission (VERSACOM). 

Two decoders are needed due to the fact that two ripple protocols have to be processed: 

one for conventional ripple control systems and one for VERSACOM. 



Page 7 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

3.2 Time Base 

The time base is normally derived from the mains frequency. However, it can also optionally 

be derived from the crystal oscillator of the microcontroller. 

3.3 Internal Clock 

The internal clock can be set at a fixed time by a special conventional telegram. Through 

the use of VERSACOM, it is possible to synchronise the receiver's clock at any chosen time. 

3.4 Microcontroller 

3.4.1 Memory 

The processor has an integrated ROM, RAM and EEPROM to store parameters and status 

data. Status data is stored in the RAM, while parameters transmitted by means of remote 

programming are stored in the EEPROM. 

3.4.2 Serial Interface 

The receiver has a standard RS232 electrical or optical interface which is used for 

programming and for reading out status data. 

3.5 Power Supply 

The standard version of the LCR212 is designed for 230/240. The power supply unit, which 

is capable of withstanding short circuits, supplies the stabilised power supply voltage for the 

individual function groups. It is designed so as to sustain functions in the event of a supply 

interruption lasting up to 1.5 seconds. 

3.6 Output Relays 

With the use of plug-in 40A relays, users have the possibility of fitting up to three relays in 

the receiver (see installation and connection diagram). 

Relay status is also refreshed every 40 seconds, provided the relays have been triggered 

once by means of a switching command or a switching program after connection of the 

mains or restoration of the mains power after a failure. This allows correction of 

unauthorised relay status changes (anti-tamper). 

3.7 Real Time Clock (Optional) 

Voltage interruptions of up to approximately 72 hours can be bridged using a real time clock 

and supercap. It is possible to use the receiver as a self sufficient remotely controllable 

timer in this way. 

LCR-212 receivers that have the real time clock option fitted are issued under the acronym 

of LCR-212RTC. 



Page 8 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

4 RECEIVER FUNCTIONS 

4.1 Switching On/Off 

When defining the parameters, the switch-on status can be specified separately for each 

relay. The execution of switch-ON operations in the receiver can be delayed within a 

maximum random delay time in the range from 1 second – 24 hours. 

4.2 Restoration of Supply 

This function is activated when power is restored, following programming, or when the 

mains is connected for the first time. The following actions can be programmed separately 

for each of the three relays: 

• ON or OFF relay status 

• Cyclic switching 

• Switching to the relay state prevailing before failure of the mains power 

• No reaction. 

To avoid abrupt load swings, execution of the switching functions can be randomly delayed 

within a preset maximum time. The selected delay time is identical for all three relays and 

can be chosen within a range from 1 second – 24 hours. 

If the receiver executes a delay when the mains power returns, then commands arriving 

during this delay time are acted on and the ROS reaction of the relays addressed is 

rendered inactive. 

4.3 Loss of Supply 

This function is activated in the event of a power failure. It is possible to set the relays to a 

preselected switching position after expiry of a definable power failure bridging time of 0.5 – 

1.5 seconds. 

The following actions can be assigned to the relays after the failure bridging time has 

elapsed: 

• ON or OFF relay status 

• No action 

4.4 Wiping Timer 

After reception of a command, the addressed relay switches to the ON position and then 

independently switches to the OFF position after expiry of a specified time. It is possible to 

retrigger the wiping timer function, i.e. the running timer is restarted on receipt of a 

repeated command. 

A delay time of 1 second – 24 hours and a random delay time can be assigned for execution 

of the command. 

4.5 Cyclic Switching 

A cyclic switching function can be assigned to relays 1 – 3. The cyclic period T applies to all 

relays and can be specified within the range of 1 second - 24 hours. The following features 

can also be assigned to each cyclic switching command: 

• cycle time Tk (ON duration) within the time range from 1 second – 24 hours 

• number of switching cycles 

• start of switching at cycle time Tk or T – Tk 



Page 9 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

• random switching delay after receipt of a command (the maximum switching delay 

corresponds to the period of the cycle T) 

• retriggering 

• During a running period, starting of a new cycle can be initiated by means of a 

repeated switching command. 

• switching position on termination of the cyclic switching 

Cyclic switching can be activated by the following events: 

• cyclic switching command 

• ROS 

• schedule 1 

4.6 Signal Absence Sensing (SAS) 

The receiver's signal absence detection function monitors the time between two valid start 

pulses in the network. The following reactions can be specified if no start pulse is detected 

within a definable time: 

• relay positions of R1 – R4: 

o 

ON or OFF status 

o disable switching program 1-4 

o 

o 

terminate cyclic switching 

no reaction 

• enable Memory function 

• enable a schedule 

(enabled schedules can be disabled by means of a special command or by receipt of a 

valid start pulse) 

5 SCOPE OF FUNCTIONS 

5.1 Conventional Decoder 

5.1.1 Number of Switching Commands 

Up to 14 commands can be programmed for each receiver. 

• 4 ON switching commands or restoration timers 

• 4 OFF switching commands 

• 3 commands for cyclic switching 

• 1 command for time synchronisation (not using VERSACOM) 

• 1 command for switchover to VERSACOM decoding 

• 1 command for schedule disabling (not using VERSACOM) 



Page 10 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

5.1.2 Multiple Switching Commands 

Of a maximum of 14 commands, 11 can be assigned directly to the output relay. It is 

possible to assign several commands to the same relay. 

• 4 ON or 4 OFF switching commands optionally to relays 1 – 4 

• 3 cyclic switching commands optionally to relays 1 – 3 

• LOOP function to relay 1 or 2 

• Memory function to relay 1 or 2 

5.1.3 Memory Function 

The Memory function can only be activated by conventional telegrams and can be assigned 

to relay 1 or 2. The receiver switching times and positions of the last 24 hours are stored in 

a schedule for either relay 1 or 2. 

5.1.4 LOOP Function 

The LOOP function serves to ensure increased switching reliability. In this case, a timer runs 

in the ripple control receiver that independently performs ON/OFF switching operations at 

specific times within a 24 hour cycle provided no other commands are received. 

5.1.5 Timer Function without VERSACOM 

A timer function can be assigned to the receiver with this function. For each relay, a 

schedule with 5 ON and 5 OFF switching times each is available to the user. 

The switching times can be specified in steps of 1 second within the range from 00:00:01 – 

23:59:59. 

5.2 VERSACOM Decoder 

5.2.1 VERSACOM Function 

The standardised VERSACOM transmission protocol (see draft standard DIN 43861, Part 3) 

with secured data transmission serves the purpose of remote switching, remote adjustment 

and remote programming of ripple control receivers. 

• Synchronisation 

This function can be used to transmit the current time along with details of the day of the 

week. In this way, schedules depending on the day of the week can be activated in the 

receiver. 

• Schedule Selection 

Up to 16 different schedules of the addressed object (relay) can be disabled or enabled. 

• Remote Programming of Schedules 

When remotely programming the switching times of a schedule in the receiver, the ON and 

OFF switching times are transmitted as parameters. The schedules are assigned 

permanently to the object and may consist of several ON/OFF switching times. 

• ON/OFF Switching Commands 

The addressed object is switched to ON or OFF with these switching commands. 

• Wiper Timer Switching Command 

An object can be activated for a limited time with this command. 

• Cyclic Switching 

The addressed object executes a cyclic (periodic) switching action when this command is 

received. 



Page 11 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

• OFF Switching Command + Work Schedule Disabling 

This command serves to switch all addressed objects to the OFF position and to disable the 

associated schedules. 

• Receiver Deactivation (OUT of Service) 

Receivers can be deactivated with this command, i.e. they no longer react to arriving 

remote switching and remote programming commands. Equally, all running work schedules 

are disabled and all relays are deactivated. 

• Receiver Activation (IN Service) 

Deactivated receivers can be activated again with this command. 

• Test Command 

This command is purely for test purposes. 

5.2.2 Timer Function with VERSACOM 

Up to 32 work schedules containing several ON and OFF switching times can be defined for 

each receiver within the range from 00:00:01 – 24.00.00. The work schedules are 

optionally assigned to relays 1 – 4. It is also possible to activate work schedules in the 

receiver depending on specific days of the week or public holidays. 

5.2.3 Special Features 

• Correction to the nominal state after a time synchronisation command. 

After a time synchronisation command has been received, the current nominal status 

of the relays belonging to all currently active work schedules is corrected in the 

receiver. 

• Correction to the nominal state after a work schedule selection. 

After a work schedule selection command has been received, enabling or disabling of 

specific temperature-dependent work schedules, all currently active work schedules 

are corrected to the current nominal status. 

• Emergency running function. 

If all work schedules in the receiver are disabled during load control, it is possible to 

assign a work schedule to each relay which is then enabled under the following two 

conditions: enabling only if all work schedules are disabled and a transmitter failure 

(SAS) is also detected. 

• Dynamic work schedule processing. 

It is possible to specify the number of work schedules and the number of switching 

time pairs when defining parameters. 

6 RIPPLE CONTROL SYSTEMS 

The LCR212 receiver is capable of processing the following ripple control protocols: 

• conventional protocols 

Identifier 

System 

0 Zellweger 180 second 

1 L & G S 50 

2 RWE 

3 L & G B telegram 

4 Zellweger 60 seconds 

5 Pulsadis (CDC or EDF) 

6 Ricontic S 

7 Ricontic B 



Page 12 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

8 Zellweger DECABIT 

9 L & G S 52 

10 L & G S 56 

11 ZPA 

• the secure VERSACOM protocol 

7 RECEIVER STATUS 

The following receiver status information is stored in the microcontroller's EEPROM and RAM 

and, using a special adaptor, can be read out through the serial interface by a PC or 

handheld unit. 

• Number of switching actions executed 

The number of switching actions executed is counted separately for each relay and is stored 

in the RAM. 

• Number of test transmissions 

Specific test commands can be defined for testing purposes. The number of commands 

received is stored in the RAM. 

• Last telegram received 

The pulse pattern of the last telegram received is stored in the RAM. 

• Signal level of the AF voltage 

The signal level of the AF voltage of the last received telegram is measured with an 

accuracy of +/- 10 % and is stored in the RAM. 

• Signal absence sensing 

The number of detected transmitter failures is counted and stored in the RAM. 

All status information is stored in the microcontroller's internal RAM and is cleared in the 

event of a power failure. 

8 MECHANICAL DESIGN 

The LCR212 ripple control receiver can be used for mounting on a meter board or with the 

optional meter mounting adaptor, on a meter terminal cover. 

The electronic circuitry is mounted on an PCB. The board is covered by a PCB holder, thus 

providing shock hazard protection even when the cover of the receiver is open. 

The receiver can be equipped with up to 3 relays, counted 1-2-3 from left to right. 

The bistable 40A output relays are of the plug-in type. 2 connection terminals for wires up 

to a diameter of 10 mm² are available for each relay. 

9 PROGRAMMING AND TEST EQUIPMENT 

To program the receiver, its RS 232 serial interface is connected either via an optical probe 

or an electrical adaptor to a PC or a hand-held programmer LCP. 

All receiver parameters such as the frequency, ripple control system and other user-defined 

data are transferred to the microcontroller's EEPROM in this way. 



Page 13 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

It is also possible to execute test switching operations with the programmer however, the 

input of the receiver is not tested through the serial interface. To test the input of the 

receiver, a TT-2 test transmitter can be used or a remote signal from a frequency injection 

plant can be called upon. 

When programming receivers not mounted and powered up on a switchboard, a suitable 

“receiver power-up cradle” shall be used. 



Page 14 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

9.1 Attachment A - Technical Data of the LCR-212 

Connection data: mains voltage: 230/240V + 11% / -22% or 

110V + 11% / -22% 

mains frequency: 50Hz - 2% / + 1% 

power consumption: 

< 1.0W / 10 VA cap 

surge voltage resistance: 

10kV 1.2/50 in accordance with 

IEC 255-4 

Filter data: control frequency range: 158Hz – 1350Hz 

control frequency selection: Freely selectable by pre-built files 

operation voltage: 

Uf >= 0.5% Un 

non-operating voltage: Unf

UNCLASSIFIED 



Use 

CEOP8086 

9.2 Attachment B - Wiring Diagram and Installation Template 

LCR-212 (also covers LCR-212RTC) wiring diagram and installation template. 



Page 16 of 17 

UNCLASSIFIED 


UNCLASSIFIED 



Use 

CEOP8086 

10 KEY TERMS AND DEFINITIONS 

LCR-212: 

Elster Single Phase Load Control Ripple Receiver. 

LCR-212RTC: 

Elster Single Phase Load Control Ripple Receiver with Real Time Clock. 

11 REVISIONS 

Issue Number Section Details of Changes in this Revision 

2 

3.2 Receiver 

Connections and 

Installation Instructions 

Explanation of receiver use and installation for 

consumers with multiphase loads and 

multiphase supply’s. 

3 All sections Rebranding template 



Page 17 of 17 

UNCLASSIFIED

Elster LCR-212 Single Phase Load Control ... - Essential Energy

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?