VM600
- 26 -
6.2
Common faults and solutions
SN
Fault
Possible causes
Solutions
1
No display
at power-on
state
1. The input power of AC Drive is
abnormal.
2. The control board has a bad
contact with cable that is connected
to the keypad.
3. The AC Drive is abnormal.
1. Check the input power.
2. Re-connect the cable.
3. Ask for technical service.
2
The motor
does not
rotate after
the AC
Drive runs.
1. The motor is damaged.
2. The motor cables is abnormal.
3. The cable between the drive
board and control board is in poor
contact.
4. The AC Drive is abnormal.
1. Replay the motor.
2. Ensure the cable between the AC Drive
and the motor is normal.
3. Check the cable between the drive board
and control board.
4. Ask for technical service.
3
DI termianls
are disabled.
1. The parameters are set
incorrectly.
2. The external signal is incorrect.
3. The control board is abnormal.
1. Check and reset the parameters in group
F5.
2. Re-connect the external signal cables.
3. Ask for technical service.
4
AC Drive
interference
1. Carrier frequency setting is not
suitable.
2. The grounding method of the AC
Drive and the motor is incorrect.
3. The wire between the AC Drive
and the motor is too long.
1. Reduce the carrier frequency
2. The AC Drive and the motor are
effectively grounded and separated from
the ground of the peripheral device.
3. Install out reactor or reduce wire
distance.
5
Motor noise
is too loud.
1. Motor damage or mechanical
failure.
2. Carrier frequency setting is too
small.
1. Replace the motor or clear the
mechanical fault.
2. Increase the carrier frequency
appropriately.
6
Switch trip
1. Installed a leakage switch or an
air switch overload.
2. The input power of AC Drive is
abnormal.
3. The AC Drive is damaged.
1. Replay the leakage switch or replay the
larfer capacity air switch.
2. Eliminate whether the input power is
shorted.
3. Ask for technical service.
Table 6-2-1 Common faults and solutions
