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6 Troubleshooting
6.1 Fault information and Troubleshooting
Any abnormity occurs during operation, the driver will lock PWM output immediately and enter protection status.
Meanwhile, the keypad will display function codes indicating the current fault, and the ALM indicator light will be on.
Follow the method described in Table 6-1 to check the fault cause and conduct according actions. If the problem remains,
contact us directly.
Table 6-1 Fault Diagnosis and Troubleshooting
Fault
code
Fault descriptions
Possible reasons
Actions
E-01
Over-current in Acc
process
Too short Acc time(including
tuning process)
Prolong the Acc time
Restart the rotating motor
Start after setting as DC brake, or
rotational speed tracking start
Drive power is too small
Select a higher power drive
V/F curve is not suitable
Adjust V/F curve or torque boost
E-02
Over-current in Dec
process
Too short Dec time (including
tuning process)
Prolong the Dec time
Too low driver’s power
Select the drive with large capacity
the load inertia is too high
Connect suitable braking resistor or
braking unit
Summary of Contents for VTS5000 Series
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