Error codeY4B
1. The servo is turned ON or the power supply is turned ON near the machine home position or in the zone in which addresses decrease., 2. The machine falls on a vertical axis when the servo-on (SON) is turned ON/OFF. The manual's first action is: “Reconsider the position where the servo is turned ON.”
- Model
- Mitsubishi Electric MR-J2S-A
- Display shows
- ABS coordinate error (Y4B)
- Type
- Error code
- Source
- Manual p. 371
What Y4B means
ABS coordinate error p. 371
Common causes
- 1. The servo is turned ON or the power supply is turned ON near the machine home position or in the zone in which addresses decrease. p. 371
- 2. The machine falls on a vertical axis when the servo-on (SON) is turned ON/OFF. p. 371
What to do
- Reconsider the position where the servo is turned ON. p. 371
- Change the electromagnetic brake operation sequence. p. 371
Before you service the product, read the safety instructions in the manual p. 3.
If Y4B 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 Y4B; 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.