Troubleshooting - Centurion D2 Turbo Installation Manual

25. 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
 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
IRBC - gate will not close once open; IRBO -

gate will not open once closed
Green IRBC/IRBO lights should be ON - check

cabling and 12V
 Latching input on TRG. (TRG light must be off for gate to
operate
 Check for an Auto-activation on TRG input
 Check the battery condition with Procedure A: Low battery
voltage condition, later in this section
 If Status light flashes four times, then the operator is in
Multiple Collision Mode. If required, check with Procedure B:
False collision detection, later in this section
 If the problem persists, the main controller might be faulty
 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.
Check for the following:
 Check that the origin marker is correctly positioned as
shown on page 34
 Check that the DOSS sensor harness is properly plugged
into the magnetic switch at one end and the controller at
the other
page 80
Possible faults