Inovance F79 fault code meaning
Inovance / F79
Series: HD5X
Unit DC bus software overvoltage fault
AC drive
Meaning: Unit DC bus voltage exceeds the software overvoltage threshold
Possible causes
- 1.Incorrect software overvoltage threshold setting
- 2. mains voltage high
- 3. F2-12 (braking torque output upper limit) setting too high
- 4.Load inertia high and deceleration time (F0-18) setting too low
- 5.Overvoltage suppression function not enabled
- 6. unit control board error
- 7.Output current oscillation
- 8.Input transformer fault
Source: HD5X Series High-Voltage AC Drive User Manual P123