LiftMaster HCTDCU HCTDCU Installation Manual - Page 27

Accessory Wiring, External Control Devices, External Reset Button, Shadow, Interrupt

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ACCESSORY WIRING EXTERNAL CONTROL DEVICES EXIT (2 Terminals) This input is a soft open command (maintained switch does not override external safeties and does not reset alarm condition). Used for exit probe, telephone entry, external exit loop detector, or any device that would command the gate/door to open. • Opens a closing gate/door and holds open an open gate/door, if maintained, pauses Timer-to-Close at OPEN limit. SHADOW (2 Terminals) This input is used for external shadow loop detector when loop is positioned under the swing of the gate/door. • Holds open gate/door at open limit • Only active when the gate/door is at the OPEN limit, disregarded at all other times • Pauses Timer-to-Close at OPEN limit INTERRUPT (2 Terminals) This input is used for photoelectric sensors and external interrupt loop detector when loop is on the outside of the gate/door. • Holds open gate/door at OPEN limit • Stops and reverses a closing gate/door to OPEN limit • Pauses Timer-to-Close at OPEN limit, activates quick close and anti-tailgate features when enabled on the expansion board (control board) Exit Com Shadow Com Interrupt Com OUTInteLrrouoppt ShaLdooow p IN ELxoitop OUTInteLrrouoppt ShaLdooow p IN ELxoitop EXTERNAL RESET BUTTON The externally located reset button serves several functions: • Press the reset button to stop a moving gate/door during a normal open/close cycle, like a stop button. • Press the reset button once while the gate/door is in open position to disable the Timer-to-Close. The gate/door will stay in the open position. To restart the Timer-to-Close either press the reset button or activate the gate/door with a programmed remote control. • Press the reset button to shut off the alarm and reset the operator. WIRING • STOP and COM: Stops a moving gate/door. Hard stop (maintained switch overrides Open and Close commands and resets alarm condition). Cancels/resets Timer-to-Close at OPEN limit. Overrides Open and Close commands (within line-of-sight). (main control board) Stop Com RESET RESET 27

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27
OUT
Interrupt
Loop
OUT
Exit
Loop
IN
Shadow
Loop
OUT
Interrupt
Loop
OUT
Exit
Loop
IN
Shadow
Loop
ACCESSORY WIRING
Com
Com
Com
Exit
Shadow
(control board)
Interrupt
EXTERNAL CONTROL DEVICES
EXIT
(2 Terminals)
This input is a soft open command (maintained switch does not override
external safeties and does not reset alarm condition). Used for exit probe,
telephone entry, external exit loop detector, or any device that would
command the gate/door to open.
•
Opens a closing gate/door and holds open an open gate/door, if
maintained, pauses Timer-to-Close at OPEN limit.
SHADOW
(2 Terminals)
This input is used for external shadow loop detector when loop is
positioned under the swing of the gate/door.
•
Holds open gate/door at open limit
•
Only active when the gate/door is at the OPEN limit, disregarded at all
other times
•
Pauses Timer-to-Close at OPEN limit
INTERRUPT
(2 Terminals)
This input is used for photoelectric sensors and external interrupt loop
detector when loop is on the outside of the gate/door.
•
Holds open gate/door at OPEN limit
•
Stops and reverses a closing gate/door to OPEN limit
•
Pauses Timer-to-Close at OPEN limit, activates quick close and
anti-tailgate features when enabled on the expansion board
EXTERNAL RESET BUTTON
The externally located reset button serves several functions:
•
Press the reset button to stop a moving gate/door during a normal
open/close cycle, like a stop button.
•
Press the reset button once while the gate/door is in open position to
disable the Timer-to-Close. The gate/door will stay in the open
position. To restart the Timer-to-Close either press the reset button or
activate the gate/door with a programmed remote control.
•
Press the reset button to shut off the alarm and reset the operator.
WIRING
•
STOP and COM:
Stops a moving gate/door.
Hard stop (maintained switch overrides Open and Close commands
and resets alarm condition). Cancels/resets Timer-to-Close at OPEN
limit. Overrides Open and Close commands (within line-of-sight).
RESET
Com
(main control board)
Stop