Chapter 8 Troubleshooting｜VP3000
491
Improper parameter settings for
the speed tracking function
(including restart after momentary
power loss and restart after fault)
Correct the parameter settings for speed tracking.
1. Start the speed tracking function.
2. Adjust the maximum current for Pr. A3-01 speed tracking.
Incorrect combination of control
mode and used motor
Check the settings for Pr. C0-02 control mode:
1. For IM, Pr. C0-02 =0
2. For PM, Pr. C0-02 =1
3. For SynRM, Pr. C0-02 =2
The length of motor cable is too
long
Increase AC motor drive’s capacity.
Install AC reactor(s) on the output side (U/V/W).
The ocA occurs due to short circuit or ground fault at the output side of the drive.
Check for possible short circuits between terminals with the electric meter
corresponds to U, V and W.
If short circuit occurs, return to the factory for repair.
Check if the setting for stall
prevention is correct
Set the stall prevention to the proper value.
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