Mitsubishi Electric MR-J2S-A Error A3: Indicates that the fourth alarm in the past is overspeed (AL.31)

Servo amplifier and motor · taken from the manufacturer’s manual, pages cited

Alarm codeA3

This code indicates that the fourth past alarm was overspeed (AL.31). The manual lists no action for this code.

Model
Mitsubishi Electric MR-J2S-A
Display shows
A3
Type
Alarm code
Source
Manual p. 161

What A3 means

Indicates that the fourth alarm in the past is overspeed (AL.31) p. 161

Common causes

  • Indicates that the fourth alarm in the past is overspeed (AL.31). p. 161

If A3 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.”
Open the manual at page 161 All MR-J2S-A error codes Manual details & download

This page summarises what the manufacturer’s manual says about A3; 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.