Rev
F
Doc
01-20099
28
of
42
Units are not synchronized:
Improper Master/Slave program settings.
One gate braking to stop causes a fault in the other (moving) gate:
1. Both units are wired to the same circuit breaker.
2. Undersized power wires.
B. FAULT LIST
The following conditions can cause a fault:
1.
Instantaneous motor overcurrent
(left/right obstruction sense) due to an
object physically obstructing the gate or gate track (UL325 requirement).
2.
Average motor overcurrent
(overload) caused by excessive motor
current (UL325 requirement).
3.
Interrupt Bar activation
(edge sensor) due to physical contact with the
edge sensor.
4.
Inoperative motor
caused by an open motor winding, broken or
disconnnected input motor wires, thermal overload, or unsupervised motor
(UL325 requirement).
5.
Limit switch staying closed when gate is supposed to move
, caused
by a broken V-belt, defective limit switch, or defective limit cams.
6.
Maximum motor run time
exceeding 75 seconds.
A.
If faults 1 through 3 occur
only once during opening or closing, the gate
reverses a few inches and stops. Fault may be cleared by removing the
obstruction and cycling any command (Manual Inputs, FIRE, Cycle, Radio,
EXIT).
B.
If two sequential faults (a combination of faults 1 through 3 and Photo-
Sensor activation) occur
during opening or closing, gate stops and
Obstruction Alarm sounds off for 5 minutes. Fault may be cleared by
removing the obstruction and cycling Manual Inputs or FIRE.
C.
If fault 4 occurs,
gate stops and Obstruction Alarm sounds off for 5 minutes.
Fault may be cleared by cycling Manual Inputs or FIRE.
D.
If faults 5 through 6 occur,
gate stops. Fault may be cleared by cycling any
command.
