INVT DA180 Error Er02-1: Encoder fault--Encoder feedback deviation too large

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

Fault codeEr02-1

The encoder feedback deviation is too large, likely because the encoder is not connected or has loose contacts. The manual's first action is: “7300-0201h”

Model
INVT DA180
Display shows
Encoder fault--Encoder feedback deviation too large (Er02-1)
Type
Fault code
Source
Manual p. 257

What Er02-1 means

Encoder fault--Encoder feedback deviation too large p. 257

Common causes

  • Encoder fault--Encoder feedback deviation too large p. 257
  • 1. The encoder is not connected. p. 257
  • 2. The encoder plug contact is loose. p. 257
  • 3. One of encoder signal cables U, V, W, A, B, and Z is disconnected. p. 257
  • 4. Encoder phases A and B are reverse. p. 257
  • 5. Eliminate the conditions that disturb encoder cables. Route encoder cables and motor cables separately. p. 257

What to do

  1. 7300-0201h p. 257
  2. 1. Connect the encoder according to the correct wiring method. p. 257
  3. 2. Ensure the encoder plug contact is proper. p. 257
  4. 3. Replace the encoder cable. p. 257
  5. 4. Ensure the encoder power voltage is proper. p. 257
  6. 5. Eliminate the conditions that disturb encoder cables. Route encoder cables and motor cables separately. p. 257

If Er02-1 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 Er02-1; 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.