Applicable Systems
AC500
AC590
ACS580
ACS880
Symptoms
DC link voltage exceeds overvoltage trip limit.
Possible Causes
- Deceleration time too short
- Regenerative load too high
- Brake chopper not connected
Troubleshooting Steps
- Step 1: Increase deceleration time
No overvoltage trip - Step 2: Connect brake resistor or chopper
DC link voltage controlled - Step 3: Check mains supply voltage
Voltage within rated range
How to Reset
Reset via control panel after resolving overvoltage.
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Source: ABB ACS510/550 User Manual, ABB Drives
Category: PLC & VFD
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