voF
Output Voltage Detection Fault
Yaskawa · iQpump1000 AC Drive
What does voF mean?
A problem is detected with the voltage on the output side of the drive. This indicates damaged hardware, specifically an internal drive module MC / FAN overheat protection circuit board due to abnormal ambient operating power or temperature.
Common Causes
- Hardware is damaged within the drive
- Internal drive module MC / FAN overheat protection circuit board failure due to abnormal ambient operating power
- Abnormal ambient temperature
Repair Steps & Checklist
Click steps to track your progress.
- 1
Lower the ambient temperature around the drive
- 2
Replace the control board or the entire drive
Verified technical data. Last updated: March 2026
Related Faults
Source: Yaskawa iQpump1000 AC Drive