Mitsubishi Electric MR-J2S-A Error AL.1A: Monitor combination error

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

Alarm codeAL.1A

Monitor combination error occurs when an incorrect servo amplifier and motor combination is connected. The manual's first action is: “Power OFF→ON”

Model
Mitsubishi Electric MR-J2S-A
Display shows
Monitor combination error (AL.1A)
Type
Alarm code
Source
Manual p. 69

What AL.1A means

Monitor combination error p. 200

Common causes

  • Wrong combination of servo amplifier and servo motor connected. p. 200

What to do

  1. Power OFF→ON p. 200
  2. Press "SET" on current alarm screen. p. 200
  3. Alarm reset (RES) p. 200
  4. Use correct combination. p. 200

Before you service the product, read the safety instructions in the manual p. 3.

If AL.1A 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 AL.1A; 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.