HELI G3 Series, Operation & Service Manual

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74
Troubleshooting:
- Check wirings.
- Check microswitches for failures.
- Through the TESTER function, check the state of the inputs are coherent
with microswitches states.
- If the problem is not solved, replace the logic board.
80 FORW + BACK
Cause:
This alarm occurs when both the travel requests (FW and BW) are active at
the same time.
Troubleshooting:
- Check that travel requests are not active at the same time.
- Check the FW and BW input states through the TESTER function.
- Check the wirings relative to the FW and BW inputs.
- Check if there are failures in the microswitches.
- If the problem is not solved, replace the logic board.
82
ENCODER
ERROR
Cause
This fault occurs in the following conditions: the frequency supplied to the
motor is higher than 40 Hz and the signal feedback from the encoder has a
jump higher than 40 Hz in few tens of milliseconds. This condition is related
to an encoder failure.
Troubleshooting
- Check the electrical and the mechanical functionality of the encoder and
the wires crimping.
- Check the mechanical installation of the encoder, if the encoder slips
inside its housing it will raise this alarm.
- Also the electromagnetic noise on the sensor can be the cause for the
alarm. In these cases try to replace the encoder.
- If the problem is still present after replacing the encoder, the failure is in
the controller.
164
PWM ACQ.
ERROR
Cause
This alarm occurs only when the controller is configured to drive a PMSM
and the feedback sensor selected in the HARDWARE SETTINGS list is
ENCODER
ABI + PWM. The controller does not detect correct information on PWM
input at start-up
Troubleshooting
- Re-cycle the key.
- Check the sensor in order to verify that it works properly.
- Check the wiring.
- If the problem occurs permanently it is necessary to substitute logic board
170
WRONG KEY
VOLT.
Cause:
The inverter key voltage is wrong .
Troubleshooting: Check the battery level if is correct.