Applicable Systems
FC-302
FC-301
Symptoms
UDC exceeds inverter overvoltage limit. Inverter shuts down until UDC drops below limit.
Possible Causes
- DC bus overvoltage
Troubleshooting Steps
- Step 1: Check power supply voltage; extend deceleration time; use braking resistor.
Fault resolved after action
How to Reset
Reset by: 1) Correct the fault condition. 2) Press RESET button or cycle power. 3) Verify fault does not recur.
Source: Danfoss VLT 2800 Manual (sinodrive.com)
Category: Electrical