[Al. 046_Servo Motor Overheat] - Mitsubishi Electric MR-J5-G Series User Manual

[AL. 046_Servo motor overheat]

• The servo motor overheated.
[AL. 046.1_Servo motor temperature error 1]
Cause
1.
The ambient temperature of the servo motor
has exceeded the specified value.
2.
The servo motor is overloaded.
3.
The thermal sensor in the encoder has
malfunctioned.
[AL. 046.2_Servo motor temperature error 2]
Cause
1.
The ambient temperature of the linear servo
motor, direct drive motor, or servo motor with
thermistors has exceeded the specified value.
2.
The servo motor is overloaded.
3.
There is a problem with the thermistor wire.
[AL. 046.3_Thermistor disconnected error]
Cause
1.
A servo motor thermistor wire is not
connected.
2.
A servo motor thermistor wire is disconnected.
[AL. 046.4_Thermistor circuit error]
Cause
1.
The thermistor circuit of the servo amplifier
has malfunctioned.
[AL. 046.5_Servo motor temperature error 3]
Page 62 [AL. 046.1_Servo motor temperature error 1]
[AL. 046.6_Servo motor temperature error 4]
Cause
1.
A current larger than the continuous output
current of the servo motor flowed.
1 SERVO AMPLIFIER TROUBLESHOOTING
62
1.3 Handling methods for alarms/warnings
Check/action method
Check the ambient temperature of the servo motor, and if the temperature
exceeds the specified value, lower the ambient temperature.
Refer to "Environment" in the following manuals.
Rotary Servo Motor User's Manual (HK series)
Direct Drive Motor User's Manual
Refer to "Environment" in the Linear Servo Motor User's Manual.
Check the effective load ratio.
If the effective load ratio exceeds 100 %, reduce the load or review the
operation pattern.
Check the servo motor temperature when the alarm occurs. If the servo motor
temperature is too low, the thermal sensor in the encoder is faulty. Replace the
servo motor.
Check/action method
Check the ambient temperature of the linear servo motor, direct drive motor, or
servo motor with thermistors. If the ambient temperature exceeds the specified
value, lower the ambient temperature.
Refer to "Environment" in the following manuals.
Rotary Servo Motor User's Manual (HK series)
Direct Drive Motor User's Manual
Refer to "Environment" in the Linear Servo Motor User's Manual.
Check the effective load ratio.
If the effective load ratio exceeds 100 %, reduce the load or review the
operation pattern.
Check if the thermistor wire has shorted. If the thermistor wire has shorted,
replace or repair the cable. If the thermistor wire has not shorted, replace the
servo motor.
Check/action method
Check if the servo motor thermistor wire is connected.
Check for disconnection in the servo motor thermistor wire. If the servo motor
thermistor wire is disconnected, repair the wire.
Check/action method
Replace the servo amplifier.
Check/action method
Check the effective load ratio.
If the effective load ratio is too high, reduce the load or review the operation
pattern. Alternatively, replace the servo motor with a larger-capacity servo
motor.
Model
[A]
[G]
[WG]
Model
[A]
[G]
[WG]
Model
[A]
[G]
[WG]
Model
[A]
[G]
[WG]
Model
[A]
[G]
[WG]