GSK GS2000T Series Error Err-9: The motor encoder signal feedback is abnormal.

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

Alarm codeErr-9

Motor encoder signal feedback is abnormal due to poor or wrong wiring, excessive cable length causing voltage drop, or damaged encoder. The manual's first action is: “Check the connector and signal wire welding condition.”

Model
GSK GS2000T Series
Display shows
The motor encoder signal feedback is abnormal. (Err-9)
Type
Alarm code
Source
Manual p. 121

What Err-9 means

The motor encoder signal feedback is abnormal. p. 121

Common causes

  • 1. Motor encoder signal wire is poorly or wrong connected; p. 121
  • 2. The motor encoder signal feedback cable is too long, causing lower signal voltage; p. 121
  • 3. The motor encoder is damaged; p. 121
  • 4. Servo unit control panel is faulty. p. 121

What to do

  1. Check the connector and signal wire welding condition. p. 121
  2. Shorten the cable length within 30m. p. 121
  3. Change a motor or encoder. p. 121
  4. Change a servo unit. p. 121

If Err-9 is still not resolved

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

Open the manual at page 121 All GS2000T Series error codes Manual details & download

This page summarises what the manufacturer’s manual says about Err-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 GSK. Found a mistake? Report an error.