Inovance A87 fault code meaning
Inovance / A87
Series: HD5X
Input transformer overtemperature alarm
AC drive
Meaning: This fault is reported when the temperature and humidity acquisition board is normal, none of the three transformer temperature ABC phases has an open circuit, and one or more phases exceed FF-26 transformer overtemperature alarm threshold
Possible causes
- 1.Ambient temperature too high (above 40 degrees)
- 2.Filter clogged
- 3.Cross-flow fan operation error
- 4.Cabinet-top cooling fan operation error
- 5.Signal error in the AC drive overtemperature fault detection circuit
- 6.Error in the DI circuit on the IO board
- 7.Control hardware error
- 8. parameter setting issue
Source: HD5X Series High-Voltage AC Drive User Manual P113