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21 Entrapment Protection
INSTALL THE LIFTMASTER MONITORED ENTRAPMENT PROTECTION (LMEP)
DEVICES (OPTIONAL)
Always refer to the installation instructions included with LiftMaster Entrapment Protection (LMEP) Devices. If a LiftMaster Monitored
Entrapment Protection Device is not installed, constant pressure to close will be required from the control station.
WIRE THE LIFTMASTER MONITORED ENTRAPMENT PROTECTION (LMEP)
DEVICES
Connect the LiftMaster Monitored Entrapment Protection
(LMEP) Device to the logic board according to the models
shown in the chart below:
1
See Chart Below
See Chart Below
MODELS CPS-U, CPS-UN4,
CPS-RPEN4, CPS-OPEN4
MONITORED PHOTOELECTRIC
SENSOR
MONITORED
EDGE SENSOR
White
White
White
Black
Black
Black
4-Wire Sensing Edge
2-Wire Monitored Sensing Edge
Red
Red
OPTION 1: CPS-MEI
OR
OPTION 2: CPS-EI
NOTE: Only one LiftMaster Monitored Entrapment Protection (LMEP) Device can be connected to the logic board. To attach additional
LMEPs, a CPS3CARD option card is required.
Secondary (non-monitored) entrapment protection devices (with normally open dry contact) should be wired to the EDGE and COMMON
terminals.
LiftMaster
CPS-MEI
LOGIC BOARD TERMINALS
MODEL COMMON - 11 LMEP - 9
CPS-U White White/Black
CPS-UN4 Blue Brown
CPS-RPEN4 Blue Brown
CPS-OPEN4 Black/White Black
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