Alarm codeAL.17
Board error occurs when servo amplifier components are faulty or motor and amplifier terminals are not properly connected. The manual's first action is: “Power OFF→ON”
- Model
- Mitsubishi Electric MR-J2S-A
- Display shows
- Board error (AL.17)
- Type
- Alarm code
- Source
- Manual p. 69
What AL.17 means
Board error p. 200
Common causes
- 1. Faulty parts in the servo amplifier. Checking method Alarm (AL.17) occurs if power is switched on after disconnection of a ll cable but the control circuit power supply cable. p. 200
- The output terminals U, V, W of the servo amplifier and the input terminals U, V, W of the servo motor are not connected. p. 200
What to do
- Power OFF→ON p. 200
- Press "SET" on current alarm screen. p. 200
- Alarm reset (RES) p. 200
- Change the servo amplifier. p. 200
- Correctly connect the output terminals U, V, W of the servo amplifier and the input terminals U, V, W of the servo motor. p. 200
Before you service the product, read the safety instructions in the manual p. 3.
If AL.17 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.17; 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.