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Rev J Doc 01-20098 Page 29 of 44
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 unconnnected
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.
C. FAULTS AND THEIR CAUSES
1. IF OBSTRUCTION LED IS ON
1. The gate is blocked by an object.
2. OBSTRUCTION or STARTUP adjustment is set too low.
3. Cold weather: frozen motor or frozen gate wheels.
4. The Maglock does not disengage from the gate at the start of gate opening.
5. A sudden increase in input power.
6. Bad Control board.
7. Belt is too tight.
2. IF INTERRUPT BAR LED IS TURNED ON
Edge Sensor is activated. Clear obstruction and cycle the gate.
3. IF OPEN MTR LED IS TURNED ON
1. The motor thermal overload switch is popped.
2. The wires connecting the motor to the Control Board are disconnected
3. Bad motor.
4. Bad Control Board.