Secondary Entrapment Protection (Non-Contact Sensor) - Chamberlain HCT Instruction Manual

S E C O N D A R Y E N T R A P M E N T P R O T E C T I O N

Secondary Entrapment Protection (Non-Contact Sensor)

Mount Photo Beam Sensor at Recommended Height and Align Properly
If an obstruction breaks the light beam while the door is
closing, the door will stop and reverse to full open position.
(LiftMaster Commercial Protector System shown)
SENSING
EDGE
INPUT
If you are going to use a non-contact sensor as a secondary entrapment protection, you should use a
recognized component to comply with the revised UL325 intended to be used in class I or class II
gate operator. See Accessories page for acceptable non-contact safety devices.
3
4
+24V
COMMON
INFRARED
BLACK or BROWN
INFRARED
WHITE or BLUE
®
19
®
13
11
Emitter
Receiver