Inovance 77-4 fault code meaning

Series: MD880

Reactor overtemperature inside the AC drive cabinet

AC drive

Meaning:

Possible causes

• The signal from the overtemperature detection point configured by parameter b6-04 is absent. In the manufacturer's standard cabinet units, when the output reactor is equipped with a temperature detection switch (A3-54=1), b6-04 is forcibly enabled with hdi1 as its source.
• Other causes.

Source: MD880 Series AC Drive Function Manual (HCU) P636