Fault code

Inovance MD280 Err08 Control power supply fault

Diagnostic context

What Err08 means on Inovance MD280

Err08 is the MD280 control power supply fault. The manufacturer lists the input voltage is not within the allowable range. as one of the documented causes.

Operating context: Start with the manufacturer troubleshooting sequence. Adjust the input voltage to the allowable range. Wait at least five minutes after power failure until the input voltage becomes normal, and then power on the AC drive again.

This diagnostic context is an editorial explanation. The possible causes and recommended checks below are the verified manufacturer troubleshooting content.

Possible causes

  • The input voltage is not within the allowable range.
  • The input voltage is not stable, causing the bus voltage to jump frequently around the undervoltage threshold.

Recommended checks and actions

  • Adjust the input voltage to the allowable range.
  • Wait at least five minutes after power failure until the input voltage becomes normal, and then power on the AC drive again.

Technical source

Inovance MD280 User Manual EN - Err08 troubleshooting — page 160

Inovance MD280 troubleshooting VI - Err08 — page 9