Inovance 74-5 fault code meaning

Series: MD880

Braking transistor temperature low or NTC not connected

AC drive

Meaning:

Possible causes

• Ambient temperature too low.
• Temperature sampling circuit connection error.
• Module thermistor error.
• The low-temperature warning threshold A4-22 is set too high.

Source: MD880 Series AC Drive Function Manual (HCU) P634