Yaskawa FS100 Error 12: The last instruction is not the END instruction.

Yaskawa FS100 · taken from the manufacturer’s manual, pages cited

Alarm code12

The last instruction is not the END instruction. The manual's first action is: “(1)Turn the power OFF then back ON. (2)If the alarm occurs again, initialize the appropriate data in maintenance mode, and then load the data saved in the external memory device.”

Model
Yaskawa FS100
Display shows
The last instruction is not the END instruction. (12)
Type
Alarm code
Source
Manual p. 117

What 12 means

The last instruction is not the END instruction. p. 117

Common causes

  • Data error p. 117
  • Main CPU board failure p. 117
  • Software operation error occurred p. 117

What to do

  1. (1)Turn the power OFF then back ON. (2)If the alarm occurs again, initialize the appropriate data in maintenance mode, and then load the data saved in the external memory device. p. 117
  2. (1)Turn the power OFF then back ON. (2)If the alarm occurs again, replace controller. Save the CMOS.BIN before replace controller to be safe. p. 117
  3. (1)Reset the alarm, and then try again. (2)If the alarm occurs again, save the CMOS BIN in maintenance mode, and then contact your Yaskawa representative about occurrence status (operating procedure). p. 117
  4. (1)Reset the alarm., and then try again. (2)If the alarm occurs again, save the CMOS BIN in maintenance mode, and then contact your Yaskawa representative about occurrence status (operating procedure). p. 117

If 12 is still not resolved

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

Open the manual at page 117 All FS100 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 12; 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 Yaskawa. Found a mistake? Report an error.