[Al. 033_Overvoltage] - Mitsubishi Electric MR-J5-G Series User Manual

[AL. 033_Overvoltage]

• The value of the bus voltage exceeded the specified value.
200 V class: 400 V DC
400 V class: 800 V DC
[AL. 033.1_Main circuit voltage error]
Cause
1.
The settings of the regenerative resistor
(regenerative option) are incorrect.
2.
The regenerative resistor (regenerative option)
is not connected.
3.
The built-in regenerative resistor or
regenerative option is disconnected.
4.
The regeneration capacity is insufficient.
5.
The power supply voltage is too high.
6.
There is a problem with the surrounding
environment.
1 SERVO AMPLIFIER TROUBLESHOOTING
54
1.3 Handling methods for alarms/warnings
Check/action method
Check the regenerative resistor (regenerative option) in use and the setting
value of [Pr. PA02.0-1 Regenerative option selection].
Refer to "Regenerative option" in the following manual.
MR-J5 User's Manual (Hardware)
Check if the regenerative resistor (regenerative option) is connected correctly.
Refer to "Regenerative option" in the following manual.
MR-J5 User's Manual (Hardware)
Measure the resistance value of the built-in regenerative resistor or
regenerative option.
If the resistance value is abnormal, take corrective actions as follows:
• When using a built-in regenerative resistor, replace the servo amplifier.
• When using a regenerative option, replace the regenerative option.
Refer to "Regenerative option" in the following manual.
MR-J5 User's Manual (Hardware)
Set a longer deceleration time constant, then check the repeatability.
If the error does not repeat, take corrective actions as follows:
• When using a built-in regenerative resistor, use a regenerative option.
• When using a regenerative option, use one with a larger capacity.
Check if the voltage of the input power supply exceeds the upper limit of the
permissible voltage. If the power supply voltage exceeds the upper limit,
reduce the power supply voltage.
200 V class: 264 V AC
400 V class: 528 V AC
Check the noise, ambient temperature, and other conditions, 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)
Model
[A]
[G]
[WG]