The alarm codes of Mitsubishi servo drives are as follows:
AL10: Undervoltage.
AL12: Memory abnormal.
AL13: Clock abnormality.
AL15: Memory exception 2.
AL16: Encoder exception 1.
AL17: Circuit anomaly 2.
AL19: Memory exception 3.
AL1A: The motor fits abnormally.
AL20: Encoder exception 2.
AL24: Motor ground fault.
AL25: Absolute position missing.
AL30: Regenerative braking abnormal.
AL31: Overdrive.
AL32: Overcurrent.
AL33: Overvoltage.
AL35: The command pulse frequency is abnormal.
AL37: Parameter exception.
AL45: The main circuit device is overheating.
AL46: Motor overheated.
AL50: Overload 1.
AL51: Overload 2.
AL52: Too much error.
AL8A: Serial communication timeout.
These codes can help users quickly identify problems with Mitsubishi servo drives and take appropriate measures to repair or replace them.