Inovance MD500T37GB-INT - Page 307

11. Troubleshooting
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Operating Panel Display Fault Description
- The motor does not rotate after the AC drive runs.
Cause Possible Solution
It is motor or motor cable problem. Check that wiring between AC drive and motor is normal.
Related AC drive and motor parameters
are set improperly.
Restore the factory parameters and re-set the following
parameters properly:
Encoder parameters
Motor ratings, such as rate motor frequency and rated
motor speed
Motor 1 control mode (F0-01) and command source
selection (F0-02)
F3-01 (torque boost) in V/F control under heavy-load start.
Cable connection between drive board
and control board is in poor contact.
Re-connect wirings and ensure secure connection.
The drive board is faulty. Contact the agent or Inovance.
Operating Panel Display Fault Description
-
DI terminals are disabled.
Cause Possible Solution
Related parameters are set incorrectly. Check and set parameters in group F4 again.
External signals are incorrect. Re-connect external signal cables.
Jumper across OP and +24 V becomes
loose.
Re-conrm the jumper bar across OP and +24 V.
The control board is faulty. Contact the agent or Inovance.
Operating Panel Display Fault Description
-
Motor speed does not rise in FVC control.
Cause Possible Solution
Encoder is faulty. Replace encoder and re-conrm cable connection.
Encoder connection is incorrect or in poor
contact.
Reconnect the encoder to ensure in good contact.
PG card is faulty. Replace the PG card.
Drive board is faulty. Contact the agent or Inovance.
Operating Panel Display Fault Description
- The AC drive detects overcurrent and overvoltage
frequently.
Cause Possible Solution
Motor parameters are set improperly. Set motor parameters or perform motor auto-tuning again.
Acceleration/deceleration time is improper. Set proper acceleration/deceleration time.
Load uctuates. Contact the agent or Inovance.
Operating Panel Display Fault Description
Err17 is detected upon power-on or running.
Cause Possible Solution
The pre-charge relay or contactor is not
closed.
Check whether the relay or contactor cable is loose.
Check whether the relay or contactor is faulty.
Check whether 24 V power supply of the contactor is faulty.
Contact the agent or Inovance.