[Al. 051_Overload 2] - Mitsubishi Electric Melservo-J5 MR-J5 Series User Manual

[AL. 051_Overload 2]

• Maximum output current continuously flowed due to machine collision or other causes.
[AL. 051.1_Thermal overload error 3 during operation]
Cause
1.
The servo motor power cable was
disconnected.
2.
The connection of the servo motor is incorrect.
3.
The connection of the encoder cable is
incorrect.
4.
Insufficient torque
5.
The servo amplifier is malfunctioning.
6.
The encoder or linear encoder is
malfunctioning.
[AL. 051.2_Thermal overload error 3 during a stop]
Cause
1.
A moving part collided against the machine.
2.
The servo motor power cable was
disconnected.
3.
The connection of the servo motor is incorrect.
4.
The connection of the encoder cable is
incorrect.
5.
The torque is saturated.
6.
The servo amplifier is malfunctioning.
7.
The encoder or linear encoder is
malfunctioning.
1 SERVO AMPLIFIER TROUBLESHOOTING
50
1.3 Handling methods for alarms/warnings
Check/action method
Repair or replace the servo motor power cable.
Check the U/V/W wiring.
Refer to "Connection example of power supply circuit" in the following manual.
MR-J5 User's Manual (Hardware)
Check if the encoder cable is connected correctly.
Check the peak load ratio, and if the torque is saturated, reduce the load or
review the operation pattern.
Otherwise, replace the servo motor with a larger-capacity servo motor.
Replace the servo amplifier.
Replace the servo motor or linear encoder.
Check/action method
Review the operation pattern to avoid collision.
Page 50 [AL. 051.1_Thermal overload error 3 during operation]
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