[Al. 024_Main Circuit Error] - Mitsubishi Electric Melservo-J5 MR-J5 Series User Manual

[AL. 024_Main circuit error]

• A ground fault occurred on the servo motor power lines.
• A ground fault occurred on the servo motor.
[AL. 024.1_Ground fault detected at hardware detection circuit]
Cause
1.
A ground fault or short occurred in the servo
motor power cable.
2.
A ground fault occurred on the servo motor.
3.
The main circuit power supply cable and servo
motor power cable have been shorted.
4.
The servo amplifier is malfunctioning.
5.
There is an abnormality in the surrounding
environment.
[AL. 024.2_Ground fault detected by software detection function]
Cause
1.
A ground fault or short occurred in the servo
motor power cable.
2.
A ground fault occurred on the servo motor.
3.
The main circuit power supply cable and servo
motor power cable have been shorted.
4.
The servo amplifier is malfunctioning.
5.
There is an abnormality in the surrounding
environment.
Check/action method
Check if the servo motor power cable has been shorted. If short occurs,
replace the servo motor power cable.
After disconnecting the servo motor power cables on the servo motor side,
check the insulation between phases (U, V, W, and
replace the servo motor.
After shutting off the power, make sure that the main circuit power cable and
the motor power cable are not in contact with each other. If the cables are
contacting, correct the wiring.
Check that this alarm occurs as the servo motor power cables (U / V / W) are
disconnected. If the alarm occurs, replace the servo amplifier.
Check the noise, ambient temperature, and others, and implement appropriate
countermeasures for the cause. If there is noise, take countermeasures to
reduce the noise.
Refer to "Noise reduction techniques" in the following manual.
MR-J5 User's Manual (Hardware)
Check/action method
Check if the servo motor power cable has been shorted. If short occurs,
replace the servo motor power cable.
After disconnecting the servo motor power cables on the servo motor side,
check the insulation between phases (U, V, W, and
replace the servo motor.
After shutting off the power, make sure that the main circuit power cable and
the motor power cable are not in contact with each other. If the cables are
contacting, correct the wiring.
Check that this alarm occurs as the servo motor power cables (U / V / W) are
disconnected. If the alarm occurs, replace the servo amplifier.
Check the noise, ambient temperature, and others, and implement appropriate
countermeasures for the cause. If there is noise, take countermeasures to
reduce the noise.
Refer to "Noise reduction techniques" in the following manual.
MR-J5 User's Manual (Hardware)
1 SERVO AMPLIFIER TROUBLESHOOTING
1.3 Handling methods for alarms/warnings
Model
[A]
[G]
[WG]
). If short occurs,
Model
[A]
[G]
[WG]
). If short occurs,
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