Centurion R3 Installation Manual page 39

Fault Finding Guide Continued...
PROBLEM
Gate overruns its limits:
5
Gate opens on its own
6
7 Unreliable auto-close
POSSIBLE CAUSES & SOLUTIONS TO PROBLEM
Check for intermittent IRB (IR Beam) triggers. (Check
beam operation, alignment and supply voltage).
Intermittent/spurious signal on FRX or TRG if in CONDO,.
PIRAC or REVERSING modes. (Standard mode would first
stop then reverse)
If the problem is still not solved, the CP75 main controller
might be faulty.
For both MASTER and SLAVE motors: (only the faulty gate's
components need to be inspected)
Check that the ORIGIN sensor wire harness is securely
plugged into the CP75 (master controller) or CP74A (slave
board), a nd securely into the ORIGIN sensor.
Check that the respective ORIGIN sensor is securely
clipped into the housing.
Check if the gate origin was accidentally moved, steps 4
to 10 of the electrical setup. If so reset the limits.
For SLAVE motor, check the wiring of S1, S2 and S3 for
continuity and short circuits. Look for and correct all loose
connections and signs of corrosion, be sure to solder all
joints.
Make sure that the ORIGIN dust cover is closed. (Ants
could give intermittent false triggers).
If the problem is not solved, the CP75 main controller might
be faulty.
Check for latched TRG or FRX input. (Respective lights
would be on continuously).
Intermittent fault on TRG or FRX inputs. Look at all joints,
switches, etc. (Underground joints with moisture buildup)
Outside transmitter with the same code. (Typically only
with DIP switch type remotes)
Faulty receiver
Faulty electric fence
If the problem is still not solved, the CP75 main controller
might be faulty.
Latching Receiver on TRG, would activate the auto-close
override feature.
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