29
SYMPTOM
POSSIBLE CAUSES
SOLUTIONS
Exit loop activation
does not cause
door to open
a) Exit vehicle detector setup incorrectly
b) Defective Exit loop detector
c) Low battery with LOW BATT option
set to CLOSE
a) Review Exit loop detector settings. Adjust settings as needed.
b) Replace defective Exit loop detector
c) Check if AC power is available. If no AC power, then running on
batteries and battery voltage must be 23.0 Vdc or higher. Charge
batteries or replace batteries
Interrupt loop does
not cause door to
stop and reverse
a) Vehicle detector setup incorrectly
b) Defective vehicle loop detector
c) Anti-tail set to ON
a) Review Interrupt loop detector settings. Adjust settings as needed.
b) Replace defective Interrupt loop detector.
c) Set anti-tail to OFF
Shadow loop does
not keep door at
open limit
a) Vehicle detector setup incorrectly
b) Defective vehicle loop detector
a) Review Shadow loop detector settings. Adjust settings as needed.
b) Replace defective Shadow loop detector
Obstruction in
door's path does
not cause door to
stop and reverse
a) Force adjustment needed
a) Refer to the Adjustment section to conduct the obstruction test and
perform the proper force adjustment that is needed
Photoelectric
sensor does not
stop or reverse
door
a) Incorrect photoelectric sensor wiring
b) Defective photoelectric sensor
a) Check photoelectric sensor wiring. Retest that obstructing
photoelectric sensor causes moving door to stop, and may reverse
direction
b) Replace defective photoelectric sensor. Retest that obstructing
photoelectric sensor causes moving door to stop, and may reverse
direction
Edge Sensor does
not stop or reverse
door
a) Incorrect edge sensor wiring
b) Defective edge sensor
a) Check edge sensor wiring. Retest that activating edge sensor causes
moving door to stop and reverse direction
b) Replace defective edge sensor. Retest that activating edge sensor
causes moving door to stop and reverse direction
Alarm sounds for 5
minutes or alarm
sounds with a
command
a) Double entrapment occurred (two
obstructions within a single
activation)
a) Check for cause of entrapment (obstruction) detection and correct
Press the reset button to shut off alarm and reset the operator
Alarm beeps three
times with a
command
a) Low battery
a) Check if AC power is available. If no AC power, then running on
batteries and battery voltage must be 23.0 Vdc or higher. Charge
batteries or replace batteries
Alarm beeps when
running
a) Mains not connected, is AC power
indicator on rear of operated
illuminated?
b) Expansion board setting
c) Constant pressure to open or close
is given
a) Re-connect power to AC supply
b) Pre-warning is set to ON
c) Constant pressure to OPEN or CLOSED is given
Expansion board
function not
controlling
door
a) Defective main board to expansion
board wiring
b) Incorrect input wiring to expansion
board
c) Defective expansion board or
defective main board
a) Check main board to expansion board wiring. If required, replace wire
cable
b) Check wiring to all inputs on expansion board
c) Replace defective expansion board or defective main board
TROUBLESHOOTING CHART continued...
TROUBLESHOOTING
