F0006 fault in WEG CFW701 Drive indicates Input Voltage Imbalance or Phase Loss. This means the incoming mains voltage is uneven or a phase is completely missing, preventing stable power delivery.
Cause:
- A Phase Loss at the inverter input.
- The input voltage imbalance is > 5%.
Note: This fault may not occur if the load at the motor shaft is too low or nonexistent. Parameter P0357 sets the time for the trip, and P0357 = 0 disables this fault.
Remedy:
Verify input mains connections and check input fuses. Check the line voltages. Setting parameter P0357 to 0 disables this fault check.
