Alarm codeAL.25
Absolute position erase occurs due to reduced super capacitor voltage in the encoder, low battery voltage, or a faulty battery cable or battery. The manual's first action is: “Power OFF→ON”
- Model
- Mitsubishi Electric MR-J2S-A
- Display shows
- Absolute position erase (AL.25)
- Type
- Alarm code
- Source
- Manual p. 69
What AL.25 means
Absolute position erase p. 200
Common causes
- 1. Reduced voltage of super capacitor in encoder p. 200
- 2. Battery voltage low p. 200
- 3. Battery cable or battery is faulty. p. 200
- 4. Super capacitor of the absolute position encoder is not charged p. 200
What to do
- Power OFF→ON p. 200
- Press "SET" on current alarm screen. p. 200
- Alarm reset (RES) p. 200
- After leaving the alarm occurring for a few minutes, switch power off, then on again. Always make home position setting again. p. 200
- Change battery. p. 200
- Always make home position setting again. p. 200
Before you service the product, read the safety instructions in the manual p. 3.
If AL.25 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.25; 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.