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

[AL. 030_Regenerative error]

• The permissible regenerative power of the built-in regenerative resistor or regenerative option was exceeded.
• A regenerative transistor in the servo amplifier is malfunctioning.
[AL. 030.1_Regenerative heat error]
Cause
1.
The setting of the regenerative resistor
(regenerative option) is 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 high.
5.
The regenerative power is large.
[AL. 030.2_Regenerative signal error]
Cause
1.
A detection circuit of the servo amplifier is
malfunctioning.
[AL. 030.3_Regenerative feedback signal error]
Cause
1.
A detection circuit of the servo amplifier is
malfunctioning.
2.
There is an abnormality in the surrounding
environment.
1 SERVO AMPLIFIER TROUBLESHOOTING
36
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 that the regenerative resistor (regenerative option) is connected
correctly.
Refer to "Regenerative option" in the following manual.
MR-J5 User's Manual (Hardware)
Check that the regenerative resistor (regenerative option) and the servo
amplifier are the specified combination.
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
Check whether the regenerative load ratio exceeds the upper limit value when
the alarm occurs.
Take the corrective actions as follows.
• 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, and 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 others, and 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]