Error codeY4A
1. Wiring for the ABS data signal (ABS bit 0 (PF), bit 1 (ZSP)) is disconnected or connected to the SG terminal., 2. PC ladder program wrong., 3. Faulty PLC input module. The manual's first action is: “Correct the wiring.”
- Model
- Mitsubishi Electric MR-J2S-A
- Display shows
- ABS data check sum error (Y4A)
- Type
- Error code
- Source
- Manual p. 371
What Y4A means
ABS data check sum error p. 371
Common causes
- 1. Wiring for the ABS data signal (ABS bit 0 (PF), bit 1 (ZSP)) is disconnected or connected to the SG terminal. p. 371
- 2. PC ladder program wrong. p. 371
- 3. Faulty PLC input module. p. 371
- 4. Faulty printed board in the servo amplifier. p. 371
What to do
- Correct the wiring. p. 371
- Correct the ladder. p. 371
- Change the input module. p. 371
- Change the amplifier. p. 371
Before you service the product, read the safety instructions in the manual p. 3.
If Y4A is still not resolved
- contact service / dealer p. 3 “Do not attempt to install, operate, maintain or inspect the servo amplifier and servo motor until you have read through this Instruction Manual, Installation guide, Servo motor Instruction Manual and appended documents carefully and can use the equipment correctly.”
- contact service / dealer p. 4 “Do not attempt to wire the servo amplifier and servo motor until they have been installed. Otherwise, you may get an electric shock.”
This page summarises what the manufacturer’s manual says about Y4A; 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 Mitsubishi Electric. Found a mistake? Report an error.