[Al. 030_Regenerative Error] - Mitsubishi Electric MR-J5-G Series User Manual

[AL. 030_Regenerative error]

• The permissible regenerative power of the built-in regenerative resistor or regenerative option was exceeded.
• The regenerative transistor in the servo amplifier has malfunctioned.
[AL. 030.1_Regenerative heat error]
Cause
1.
The settings of the regenerative resistor
(regenerative option) are incorrect.
2.
The regenerative resistor (regenerative option)
is not connected.
3.
The regenerative resistor (regenerative option)
and the servo amplifier are connected in a
wrong combination.
4.
The power supply voltage is too high.
5.
The regenerative power is too large.
[AL. 030.2_Regenerative signal error]
Cause
1.
The detection circuit of the servo amplifier has
malfunctioned.
[AL. 030.3_Regenerative feedback signal error]
Cause
1.
The detection circuit of the servo amplifier has
malfunctioned.
2.
There is a problem with the surrounding
environment.
1 SERVO AMPLIFIER TROUBLESHOOTING
50
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 Regenerative option].
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)
Check if the combination of the regenerative resistor (regenerative option) and
the servo amplifier is correct as specified.
Refer to "Regenerative option" in the following manual.
MR-J5 User's Manual (Hardware)
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 whether the regenerative load ratio exceeds the upper limit value when
the alarm occurs.
If the alarm is not cleared even after taking the following corrective actions,
replace the servo amplifier.
• Reduce the frequency of positioning.
• Set a longer deceleration time constant.
• Reduce the load.
• Use a regenerative option if it is not being used.
[WG]
• Ensure that each axis does not decelerate simultaneously.
Check/action method
Check if the regenerative resistor (regenerative option) is overheating. If the
regenerative resistor is overheating, replace the servo amplifier.
Check/action method
Remove the regenerative option or built-in regenerative resistor, then check if
the alarm occurs at power on. If the alarm occurs, replace the servo amplifier.
Check the noise, ground fault, ambient temperature, and other conditions,
then take countermeasures against its 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]
Model
[A]
[G]
[WG]
Model
[A]
[G]
[WG]