Cutler-Hammer Photoelectric Sensors – Electrical - Eaton Canada

Cutler-Hammer Photoelectric Sensors
Installation Instructions—E64 Terminal Base Photoelectric Sensors
Document 110577 (Rev 01)
Models covered in this manual:
Sensing Mode Light Source Maximum Range Field of View Thru-beam Component With Time Delay Model Number
Thru-beam Infrared 33 feet 30 inch diameter Source Only - - - E64CAL4T
(10 m) at 33 feet Detector Only No E64CAL3T
Yes E65CAT3T
Reflex Infrared 0.33-16.4 feet 5 inch diameter - - - No E64CAL1T
(0.1-5 m) at 22 inches Yes E64CAT1T
Polarized Reflex Visible Red 0.5-9.8 feet 5 inch diameter - - - No E64CAL5T
(0.15-3 m) at 22 inches Yes E64CAT5T
Diffuse Reflective Infrared 35 inches 0.8 inch diameter - - - No E64CAL2T
(90 cm) at 22 inches Yes E64CAT2T
WARNING
These products are not designed, tested, nor recommended for use in
human safety applications.
INTRODUCTION
The E64 Series is a complete line of terminal base photoelectric sensors.
They operate on 16 to 240 V ac or dc. The sensors feature a sensitivity
adjustment, a red LED to indicate output status, and a green LED stability
indicator to aid in alignment.
Time delay models are switch selectable for normal, on delay, off delay, on-off
delay and one-shot delay. The timing range is adjustable from 0.6 to 16
seconds.
GENERAL MOUNTING
All sensors include a mounting bracket that is attached to the sensor with
two screws (included). Slotted holes in the bracket allow easy sensor
adjustment for alignment purposes. Pages 2 and 3 of this manual explain
the alignment procedure for each type of sensor.
Screw Tightening Torque
Proper tightening of screws will ensure reliable performance and a watertight
seal. Excessive tightening may damage the sensor (see chart below):
Screw Tightening Torque
Terminal Screw ................. 111 to 167 in-oz (8 to 12 kgf-cm)
Gland ................................ 139 to 208 in-oz (10 to 15 kgf-cm)
Cover Fixing Screw ........... 69 to 111 in-oz (5 to 8 kgf-cm)
Mounting Screw ................ 111 to 167 in-oz (8 to 12 kgf-cm)
Mounting Guidelines
listed below are some general guidelines to ensure reliable sensor performance:
• When installing several sensor near each other, allow adequate
distance between sensors or install light barriers to prevent light
interference (cross-talk), both directly and reflected from the floor or
wall.
• Fluorescent light may affect sensor performance. Shield or locate sensors
away from fluorescent light sources.
• Do not run sensor cables in the same wire duct as other power supply, motor,
or electromagnetic lines because induction noise will cause malfunction or
damage to the sensor.
• Use the sensor within the rated power voltage. When using a switching power
supply, connect the FG (frame ground) terminal to the ground.
SENSOR INDICATORS AND ALARM
Stability Indicator (Green LED)—The stability indicator is a visual
indication that the sensor is operating in a stable range. This range is
based on the level of the received input signal. When the LED is ON, the
sensor provides an output that is considered reliable. Definition of this
range depends upon the operating mode of the sensor:
Light Operate (typical mode for diffuse reflective)—The output is
ON and stable when the received signal value is higher than 130%,
and is OFF and stable when the received signal value is lower than
70% (where 100% is the level necessary to switch the output). See
illustration.
Dark Operate (typical mode for thru-beam and reflex)—The output
is OFF and stable when the received signal value is higher than 130%,
and is ON and stable when the received signal value is lower than 70%
(where 100% is the level necessary to switch the output). See
illustration.
Output Indicator (Red LED)—This LED is ON when the sensor output is
ON. See illustration.
Received Signal Strength
130%
100%
70%
0
ON
(Stable)
OFF
(Unstable)
OFF
(Unstable)
ON
(Stable)
Stability
Indicator
(Green LED)
ON
ON
OFF
OFF
Output Indicator
(Red LED)
TEST INPUT (THRU-BEAM SOURCE)
Proper operation of the thru-beam sensor pair can be verified from a
remote location using the test inputs on the source (TEST+ and TEST-).
When a voltage of 10 to 30 Vdc is applied to the test terminals, the source light
pulses will be inhibited. In a properly functioning system, this will appear to the
detector as a blocked beam and the detector will switch output status just as if
a target has been detected.
In the case of dirty or dusty lenses, or loss of optical alignment, the
detector doesn't receive the source light pulses in any condition and its
output doesn't switch during test input.
OFF
OFF
ON
ON
Light Operate Dark Operate
Output
Switching
Level

LOCATION OF CONTROLS AND INDICATORS
The illustrations below show the location of controls and indicators for the
standard and time delay sensor models (shown with cover removed).
STANDARD SENSOR
Output Indicator (Red)
Stability Indicator (Green)
Sensitivity Adjustment
1 3
Power Terminals
Output Terminals
2 4
SENSOR WITH TIME DELAY
Output Indicator (Red)
Stability Indicator (Green)
Sensitivity Adjustment
REFLEX SENSORS
Light/Dark Switch
Timing Function Switch
Time Delay Control
1 3
Power Terminals
Output Terminals
2 4
A reflex sensor has both a light source and detector in the same unit. The source
sends a beam of light to a retroreflector which returns it back to the detector. A
break in the light beam causes the sensor to change output state.
Polarized models are used to reliably detect shiny targets that may reflect
the light beam back to the sensor instead of interrupting the beam. The
polarizing filter conditions the beam so that light reflected off the
retroreflector is detected, but light reflected by the target is not.
USING RETROREFLECTIVE TAPE
Retroreflective tapes can have vastly different properties than cornercube
reflectors. Polarized reflex sensors will not function with some
types of tape. Also, signal strength can drop dramatically as the distance
between tape and sensor is reduced. If you are using a polarized
sensor, or intend to mount the tape closer than 12 inches from the
sensor, we recommend that you test your particular tape prior to
installation.
REFLEX SET-UP
Locate the sensor and retroreflector on opposite sides of the target.
Ensure that the area of the target to be detected will block the entire
beam.
With power applied to the sensor, aim the unit directly at the center of
the retroreflector. Move the sensor back and forth in one plane to find
the extreme positions where the red output LED goes “off” (for light-operate
mode, or “on” for dark-operate mode). Position the sensor midway between the
two extremes. Repeat this procedure for the other plane. The green stability
LED should now be ON with no target in the beam. If it is not, repeat the
alignment procedure. If the green LED is still not ON, the sensor and
TIME DELAY OPERATION (FOR TIME DELAY MODELS)
Timing functions and light/dark operate modes are set using the Timing
Function Switch (located on time delay models only—see “Location of
Controls and Indicators” at left). To set the timing function:
1. Refer to the chart below to determine the switch position for the
desired timing mode. Be sure to choose light or dark operate.
2. Set the Timing Function Switch on the sensor to the proper position.
3. Adjust the time-delay control to the desired delay interval from 0.6 to
16 seconds.
TIMING FUNCTION SWITCH ADJUSTMENTS
Operating Mode
Light Operate
Dark Operate
Normal
One
Shot
ON/OFF
Delay
ON
Delay
OFF
Delay
Normal
One
Shot
ON/OFF
Delay
ON
Delay
OFF
Delay
Switch
Position
7
6
5
4
3
8
9
0
1
2
Light recieved
Light not rec'd.
Output ON
Output OFF
Output ON
Output OFF
Output ON
Output OFF
Output ON
Output OFF
Output ON
Output OFF
Output ON
Output OFF
Output ON
Output OFF
Output ON
Output OFF
Output ON
Output OFF
Output ON
Output OFF
retroreflector may be spaced too far apart (check the maximum sensing
range on the first page of this manual).
After alignment, tighten all mounting screws.
If the sensor has a visible red light source, you can also look at the
retroreflector with your eye as close to the sensor as possible and align the
sensor until reflected light is brightest.
Stretch wrap material over a shiny surface may reflect enough light to false
trigger a polarized reflex sensor. In this case, reduce the gain slightly or tilt the
alignment axis of the sensor relative to the shiny surface.
Center the retroreflector
in the beam. The output
indicator LED will change
state if the retroreflector
moves out of range.
Polarized models “see”
only light rotated 90°.
Polarized light is
rotated 90° by the
retroreflector.
Working
Range
Effective
Beam

DIFFUSE REFLECTIVE SENSORS
A diffuse reflective sensor operates by shining a beam of light out
through the lens. When an object comes within the sensor’s view, it
reflects part of this beam of light back to the sensor causing the sensor
to detect the object. The maximum range at which a given object can be
detected depends on how well its surface reflects light—the less light it
reflects back, the shorter the range. The ability of a surface to reflect light
depends primarily upon its material of construction, color, and texture.
DIFFUSE REFLECTIVE SET-UP
Select a mounting location with a clear view of the object to be detected.
Avoid direct reflection from a highly reflective background (or darken the
background). Mount the sensor so that it points at the most suitable part
of the target object.
Be sure your power supply is off, then connect the sensor to the control
circuit and power lines. Turn the power supply on and place a sample
object in the beam. Slowly turn the gain adjustment clockwise until the red
output LED lights (in light-operate mode). Note the position and remove the
sample object. Now continue turning the sensitivity setting clockwise to find the
position where the LED lights from the background reflection. Reset the
sensitivity midway between the two positions. Tighten all mounting screws.
NOTE: If background reflections are low, it will be possible to achieve a
maximum gain setting without the LED lighting; in that case, set the gain
midway between the first setting and maximum (this will prevent a
hysteresis latch-up after sensing an object).
THRU-BEAM SENSORS
Thru-beam sensors consist of a source and detector positioned on
opposite sides of a detection zone. The source emits infrared light, which
is received by the detector. The detector output switches when this beam
of light is either blocked (when set for dark operation), or un-blocked
(light operation).
THRU-BEAM SET-UP
Aim the source and detector units directly at each other from opposite
sides of the target. (The detector should be on the dirtier side since the
light scattering effect of dirt collecting on the lens is less significant if it
takes place at the detector.) Ensure that the area of the target to be
detected will block the entire beam.
Set the detector to maximum sensitivity. Apply power to both the source and
detector. The red output LED on the detector should be OFF (in dark operate
mode) or ON (in light operate mode). If this is not the case, move the source
and detector so that they are pointed directly at each other until this happens.
Fine tune the alignment by moving the detector back and forth in the horizontal
plane to find the extreme positions where the red output LED changes state (i.e.
goes ON in dark operate mode, or OFF in light operate mode). Position the
sensor midway between the two extremes. Repeat this procedure for the
vertical plane.
Now move the source back and forth in the horizontal plane to find the extreme
positions where the red output LED on the detector changes state. Position the
sensor midway between the two extremes. Repeat this procedure for the
vertical plane.
The green stability LED should now be ON with no target in the beam. If it is
not, repeat the alignment procedure. If the green LED is still not ON, the source
and detector may be spaced too far apart (check the maximum sensing range
on the first page of this manual).
After alignment, tighten all mounting screws.
The detector
“sees” light when
the target surface
enters the
Detection Zone.
Detection
Zone
If the control’s range is greater than
required to detect the target,
background objects may reflect enough
light to trigger the control. Darken the
background or reduce the sensor’s
operating range by turning the
sensitivity control counterclockwise until
the background is no longer detected.
The detector must be placed
within the source beam
pattern (the area containing
all the light rays emitted
by the source).
Source Beam
Pattern
Detector
Working
Range
Working
Range
Effective
Beam Diameter
(Detection Zone)
Target
Object
Required Range
Limit
INSTALLING THE SLIT MASK (OPTIONAL)
Slit masks reduce the size of the
effective beam (see above) for
detection of smaller objects, or
increased accuracy when sensing
the position of a target. The chart
below shows the minimum object
size and the sensing range when
using slit masks.
Source
Detector
Field of View
Target
Object
Background
Object
The source
must be placed
within the
detector field of
view for the
detection
system to
operate.
Only the light source rays that
travel in a straight line to the
receiver (the diameter of the lens)
will be detected. An object must
fully block this beam in order to be
detected.
Slit
Mask
Slit Mask Mounted on: Minimum Object Size Maximum Range
Source OR Detector 0.63 inch (16 mm) Dia. 13.1 feet (4 m)
Source AND Detector 0.12 x 0.39 inch (3 x 10 mm) 6.6 feet (2 m)

Cutler-Hammer Photoelectric Sensors
SPECIFICATIONS
Input Voltage 16 to 240 V AC or DC; 50/60 Hz
Power Dissipation 3 VA maximum
Output Type SPST relay
Current Switching 1 A @ 250 VAC (resistive load); 2 A @ 30 VDC (resistive load)
Response Time 20 mS maximum
Switching Frequency 2 op./sec maximum
Power-on Delay Output is disabled for 200 mS after power is applied to the
sensor; timing functions start after this 200 mS delay
Light/Dark Operation Switch selectable
Operating Temperature +14° to +140° F (-10° to +60° C)
Storage Temperature -4° to +158° F (-20° to +70° C)
Sensitivity Control Included on all models
Indicator LEDs Red: Output; Green: Stability
Enclosure Ratings IP66; NEMA 1, 3, 4, 12, and 13
Humidity 35% to 85% RH, non-condensing
Housing Material P.B.T.
Lens Material PMMA Methacrylate
Vibration 10 to 55 Hz, amplitude 0.06 inch (1.5 mm) p-p,
2 hours each in axes X, Y, Z
Sunlight Immunity 1,000 foot-candles
Timing Functions Switch selectable for normal, on delay, off delay, on-off delay,
(Time delay models) one-shot delay. 0.6 to 16 Second adjustable timing range
WIRING AND CABLE CONNECTION
Shown in inches (mm)
except where noted
Power Supply
16 to 240
Vac/Vdc
For service or more information call:
1-800-426-9184
DIRECTLINE Application Assistance:
Fax-206-513-5356
Sensor
1 3
2 4
0.31 to 0.39 (8 to 10) Diameter Cable
0.20 (5)
2.35 (60)
Gland Packing
Gland Gland Washer
Output Contact
1 A @ 250 Vac
2 A @ 30 Vdc
Resistive Load
(no connection on
thru-beam source)
Cover
1. Use 0.31 to 0.39 inch (8 to 10 mm) diameter cable to ensure proper
water and dust sealing. Two gland packings are supplied; one for 0.31
to 0.35 inch (8 to 9 mm) diameter cable, and one for 0.35 to 0.39 inch
(9 to 10 mm) diameter cable. Use the proper gland packing and
assemble as shown above. Tighten firmly.
Cutler-Hammer
720 80th Street SW,
Everett, WA 98203-6299
206/353-0900 Fax: 206/513-5302
OPTICAL PERFORMANCE
Dirt in the environment will affect optical performance by reducing the
amount of light the control receives. For best results, sensors should be
used at distances where excess gain is higher than 1.5 (1.5 times the
amount of sensing power required to detect an object under ideal
conditions). Higher excess gain will allow the sensor to overcome higher
levels of contamination on the lens.
1. Thru-beam
2. Reflex
3. Polarized Reflex
Performance to
supplied 2-inch
retroreflector
(E65KR65)
3. Diffuse Reflective
Performance to a
90% reflectance
white card
RANGE (m)
0.03
1000
0.3
3.0 30.5
Cutler-Hammer Canada
3228 South Service Rd
Burlington, ON L7N 3H8
800/268-3578 905/333-6442 Fax: 905/333-2724
Specifications subject to change without notice. 110577; Printed in USA (2/96)
EXCESS GAIN
100
APPROXIMATE DIMENSIONS
Shown in inches (mm)
except where noted
Extends:
0.14 (3.5) - Polarized Reflex
0.02 (0.5) - Thru-beam
Thru-beam
lens center
line
1.38
(35)
1.67
(42.5)
M5 Mounting Screws (2 PLS)
2.08 (53)
2.66
(67.5)
10
4
2
3
1
1
0.1 1
10 100
RANGE (feet)
0.39 (10)
0.30 (7.5)
1.02 (26)
LEDs
2.30
(58.5)
0.39 (10)
0.59
(15)
2.16 (55)
0.59
(15)
2.95 (75)
0.83 (21)
2.16 (55)
0.22
(5.5)
ø 0.24 (6)
0.43 (11)
1.08 (27.5)
0.43 (11)
1.38
(35)
0.57
(14.5)
2. Connect wires to lower terminals 2 and 4 first, then upper terminals
1 and 3.
3. Maximum cable length is 328 feet (100 m) when using 22 ga. (0.3
mm2 core) cable or larger wire.