Low Voltage (Undervoltage) Trip
Vacon · X4 AC Drive
What does 32 mean?
This fault indicates that the drive has detected an undervoltage condition or power dip, which it could not ride through. Depending on parameter 501 settings (Coast Stop or Controlled Stop), the drive will either coast to a stop or decelerate the motor before faulting. This protects the drive and motor from operation with insufficient input power.
Complete Troubleshooting Guide
- 1
Verify the incoming line power voltage is stable and within the drive's specified operating range.
- 2
Consider adding an isolation transformer or ensuring the power feeder can meet the drive's demands without significant voltage sags.
- 3
Review parameter 501 settings to understand the drive's behavior during undervoltage conditions. Adjust if necessary for ride-through capabilities.
- 4
If the power supply is verified as stable, consult the factory as there may be an internal issue with the drive's voltage sensing circuitry.