Zapi ACE3 - Page 94

Page – 94/139 AFFZP0BB – ACE3 – User Manual
Troubleshooting
- Verify the motor phases connection on the motor side
- Verify the motor phases connection on the inverter side
- Check the motor power cables.
- Replace the controller.
- If the alarm does not disappear, the problem is in the motor. Replace it.
16) INIT VMN LOW 01/02/03
Cause
Before switching the LC on, the software checks the power-bridge voltage
without driving it. The software expects the voltage to be in a “steady state”
value. If it is too low, this alarm occurs.
Troubleshooting
- Check the motor power cables.
- Check the impedance between U, V and W terminals and -Batt terminal of
the controller.
- Check the motor leakage to truck frame.
- If the motor connections are OK and there are no external low impedance
paths, the problem is inside the controller. Replace it.
17) INIT VMN HIGH 81/82/83
Cause
Before switching the LC on, the software checks the power-bridge voltage
without driving it.
The software expects the voltage to be in a “steady state” value.
If it is too high, this alarm occurs.
Troubleshooting
- Check the motor power cables;
- Check the impedance between U, V and W terminals and -Batt terminal of
the controller.
- Check the motor leakage to truck frame.
- If the motor connections are OK and there are no external low impedance
paths, the problem is inside the controller. Replace it.