Mitsubishi Electric MR-J2S-A Error AL.9F: Battery warning

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

Alarm codeAL.9F

Battery warning occurs when the absolute position detection system’s battery voltage is reduced. The manual's first action is: “Power OFF→ON”

Model
Mitsubishi Electric MR-J2S-A
Display shows
Battery warning (AL.9F)
Type
Alarm code
Source
Manual p. 200

What AL.9F means

Battery warning p. 200

Common causes

  • Voltage of battery for absolute position detection system reduced. 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. Change the battery. p. 200

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

If AL.9F 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 200 All MR-J2S-A error codes Manual details & download

This page summarises what the manufacturer’s manual says about AL.9F; 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.