[Al. 056_Forced Stop Error] - Mitsubishi Electric Melservo-J5 MR-J5 Series User Manual

[AL. 056_Forced stop error]

• The servo motor failed to decelerate normally during a forced stop deceleration.
[AL. 056.2_Over speed during forced stop]
Cause
1.
The forced stop deceleration time constant is
short.
2.
The torque limit is enabled.
3.
The servo system is unstable and oscillating.
4.
The encoder or linear encoder is
malfunctioning.
[AL. 056.3_Estimated excess distance during forced stop]
Cause
1.
The forced stop deceleration time constant is
short.
2.
The torque limit is enabled.
3.
The encoder or linear encoder is
malfunctioning.
1 SERVO AMPLIFIER TROUBLESHOOTING
54
1.3 Handling methods for alarms/warnings
Check/action method
Set a larger value in "Deceleration time constant at forced stop", and then
check the repeatability. If the error does not repeat, adjust the deceleration
time constant.
[A]: [Pr. PC51 Deceleration time constant at forced stop]
[G] [WG]: [Pr. PC24 Deceleration time constant at forced stop]
When torque is limited, review the torque limit value.
Check the torque ripple with MR Configurator2.
If the torque ripple is vibrating, adjust the servo gain with the auto tuning. Set
the machine resonance suppression filter.
Replace the servo motor or linear encoder.
Check/action method
Set a larger value in "Deceleration time constant at forced stop", and then
check the repeatability. If the error does not repeat, adjust the deceleration
time constant.
[A]: [Pr. PC51 Deceleration time constant at forced stop]
[G] [WG]: [Pr. PC24 Deceleration time constant at forced stop]
When torque is limited, review the torque limit value.
Replace the servo motor or linear encoder.
Model
[A]
[G]
[WG]
Model
[A]
[G]
[WG]