What causes overload 2 in Mitsubishi Electric MR-J2S-20B Amplifier and how to fix it?
- SSabrina HendersonAug 25, 2025
To troubleshoot an overload (Overload 2) in your Mitsubishi Electric Amplifier: * Review the operation pattern and install limit switches if the machine struck something. * Ensure correct connection of the servo motor, matching the servo amplifier's output terminals U, V, W to the servo motor's input terminals U, V, W. * If the servo system is unstable and hunting, repeat acceleration/deceleration to execute auto-tuning, change the auto-tuning response setting, or set auto-tuning to OFF and make gain adjustment manually. * If the encoder is faulty (when the servo motor shaft is rotated with the servo off, the cumulative feedback pulses do not vary in proportion to the rotary angle of the shaft but the indication skips or returns midway), replace the servo motor.