Receiver/Control Module - Chamberlain LiftMaster Professional LM1000A Service Training Manual

Receiver/Control Module

FIGURE 2: Receiver/Control module
Automatic
24 V output
close feature*
Voltage for Control for
memory
Radio receiver
Radio remote
signal output
control
Optional
keylock
Signal input for
light/locks
Infrared
Sensor
* Only for door openers with 80/100kg
Door-in-door
switch
Control for
UP relay DOWN relay
Reference point
(distance of travel
measurement
Flashing lamp
Light switch
Downward
force
Motor speed
sensor input
Upward force
Posi-Lock
FIGURE 3
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