INVT DA180 Error Er02-9: Encoder fault--Encoder battery undervoltage fault

AC servo drive · taken from the manufacturer’s manual, pages cited

Fault codeEr02-9

The encoder’s external battery voltage is too low, triggering an undervoltage fault and requiring battery replacement. The manual's first action is: “7300-0209h”

Model
INVT DA180
Display shows
Encoder fault--Encoder battery undervoltage fault (Er02-9)
Type
Fault code
Source
Manual p. 257

What Er02-9 means

Encoder fault--Encoder battery undervoltage fault p. 257

Common causes

  • Encoder fault--Encoder battery undervoltage fault p. 257
  • When the multimeter absolute encoder is used, the external battery voltage of the encoder is between 3.0V–3.2V. p. 257
  • If yes, replace the battery. p. 257
  • Otherwise, encoder data may be lost. p. 257

What to do

  1. 7300-0209h p. 257
  2. 1. Ensure the encoder battery cable is connected properly. p. 257
  3. 2. Use the multimeter to check whether the external battery voltage is less than 3.2V. If yes, replace the battery. p. 257
  4. 3. Replace the battery when the drive power is on. Otherwise, encoder data may be lost. p. 257

If Er02-9 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact INVT service.

Open the manual at page 257 All DA180 error codes Manual details & download

This page summarises what the manufacturer’s manual says about Er02-9; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with INVT. Found a mistake? Report an error.