Troubleshooting - CENTURION SYSTEMS D2 Turbo Installation Manual

17. Troubleshooting

Problem
Gate does not move
Gate moves a short
distance, and then
stops
Gate starts closing,
then stops and
re-opens
Gate overrides
its limits
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• Fuse is blown – Check 30A ATO fuse, and replace if
necessary
• LCK (Holiday lockout) input activated. Green LCK light
should be ON
• IRBC/IRBO (IR beams) inputs activated
• Latching input on TRG. (TRG light must be off for gate to
operate
• IRBC - gate will not close once open; IRBO - gate will not
open once closed
• Green IRBC/IRBO lights should be ON -
• Check the battery condition with Procedure A: Low battery
voltage condition, later in this section
• Procedure B: False collision detection, later in this section
• If the problem persists, the main controller might be faulty
• If Status light flashes four times, then the operator is in
Multiple Collision Mode. If required, check with
• Check the battery condition with Procedure A: Low battery
voltage condition, especially if the Status Light flashes
three times
• Check for false collisions with Procedure B: False Collision
Detection, later in this section
• Intermittent IRBC/IRBO signals. Check that the voltage
applied to the beams is appropriate
• False trigger. Intermittent short due to possible moisture
on the TRG input. Monitor TRG LED
• If the problem is still not solved, the main controller might
be faulty
• Check collision sensitivity and other causes with Procedure
B: False Collision Detection
• Besides a faulty controller, which will be considered last,
the only factor that could cause this symptom is a missing
origin or faulty DOSS module
• However, initially before the gate overrides its limits, if the
origin is not detected, the controller will automatically start
beeping when the gate is running, but it will allow normal
operation.
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Possible faults