Sumitomo E09 fault code meaning

Sumitomo / E09

Series: HF-320, SF-320

Undervoltage protection

AC drive

Meaning: A decrease of the input voltage of an inverter results in improper function of the control circuit. It also generates motor heat and causes low torque. Output is cut off when the input voltage goes down to less than 150 V to 160 V (200 V class), 300 V to 320 V (400 V class).

Possible causes

Source:

Series: HF430

Under-voltage

AC drive

Meaning: When the incoming voltage of inverter is low, the control circuit can't operate correctly. The under-voltage circuit operates and the inverter output is switched off.

Possible causes

Source: