Mount The Photoelectric Sensors (Provided); Wire The Liftmaster Monitored Entrapment Protection (Lmep) Devices - Chamberlain GH Installation Manual

MOUNT THE PHOTOELECTRIC SENSORS (PROVIDED)

1
Center each sensor in the bracket with the lenses pointing
toward each other across the door.
2
Attach the sensors to the brackets with the provided
hardware. Finger tighten the receiving sensor wing nut.
Securely tighten the sending sensor wing nut.
3
Run the wires from both sensors to the operator. Use
insulated staples to secure wire to the wall and ceiling.
4
Connect the sensor wires to the operator (see below).

WIRE THE LIFTMASTER MONITORED ENTRAPMENT PROTECTION (LMEP) DEVICES

1
Connect the LiftMaster Monitored Entrapment Protection
(LMEP) device to the logic board according to the models
shown below:
CPS-U and CPS-UN4
24VAC
POWER
24VAC
TIMER
DEFEAT
White (Blue)
COMMON
MAS
White/Black (Brown)
LMEP:
TTC TIMER
EDGE:
ENABLE
OPEN
3
CLOSE
STOP
TS
FSTS
COMMON
DIAG
Entrapment Protection
Bell Wire
Photoelectric Sensor
6" (15 cm) max. above fl oor
CPS-EI
4-Wire Sensing Edge
Black
Black
White
White
22
Wing Nut
"C" Wrap
Wire
Indicator Light
Hex Bolt 1/4-20x1-1/2"
Sensor
Connect wire to
Operator (refer to
following page)
Photoelectric Sensor
6" (15 cm) max. above fl oor
Invisible Light Beam Protection Area
Green LED
CPS-EI
E1
LMEP2
E2
LMEP1
E3
E4
40-34141-1
Secure wire with
insulated staples
SBC
COMMON
STOP
CLOSE
OPEN
EDGE
LMEP
MAS
COMMON
DEFEAT
TIMER
24VAC
POWER