Zeror.ai Error Codes Inovance E009.1

Inovance E009.1

Brand: InovanceModel: MD520 VFDError code: E009.1

What the Fault Means

Undervoltage

Likely causes

  • Instantaneous power failure
  • AC drive input voltage out of range
  • Input phase loss and large output power
  • High undervoltage threshold
  • AC drive model setting error
  • Rectifier bridge pre-charge resistor drive board or control board exception

Solution and Safe First Checks

  1. Enable overvoltage suppression; set F9-59 or bit0 of AB-25
  2. Adjust input voltage to normal range
  3. Make sure input grid is normal
  4. Lower undervoltage threshold as appropriate
  5. Set AC drive model correctly
  6. Contact technical support

Safety: do not work inside the panel without isolating the power; if unsure, consult a qualified technician.

Related Inovance error codes

Source: the Zeror.ai industrial fault database and Inovance technical documentation. This page is for information; on critical systems follow the manufacturer's manual and authorised service.