Output Voltage Detection Fault
Yaskawa · P1000 AC Drive
What does voF mean?
An error has occurred in the drive's internal output voltage detection circuit, leading to an inability to accurately measure output voltage. This impacts motor control and protection.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Cycle power to the Yaskawa P1000 AC Drive and observe if the 'voF' fault clears.
- 2
Inspect motor cable and all connections between the drive's output terminals (U, V, W) and the motor for physical damage, loose connections, or signs of arcing.
- 3
Verify all motor nameplate parameters (e.g., rated voltage, current, frequency, RPM) configured in the Yaskawa P1000 drive match the actual motor nameplate.
- 4
Measure motor insulation resistance (Megger test) for each motor phase to ground and between phases to check for shorts or grounds that could affect drive output.