12-30
12-4 Troubleshooting
OMNUC G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
12
Troubleshooting and Maintenance
Vibration is occurring at
the same frequency as
the power supply.
Inductive noise is occurring. Check to see if the drive
control signal lines are too
long.
Shorten the control signal
lines.
Check to see if the control
signal lines and power supply
lines are bound together.
• Separate control signal
lines from power supply
lines.
• Use a low-impedance
power supply for
control signals.
The position is
misaligned. (Position
misalignment occurs
without an error being
output.)
There is an error in the
coupling of the mechanical
system and the Servomotor.
Check to see if the coupling of
the mechanical system and
the Servomotor is misaligned.
Correct the coupling
between the mechanical
system and the
Servomotor.
The gain is wrong. − Check if manual tuning
can achieve proper
adjustment.
The load inertia is too large. • Check the load inertia.
• Check the Servomotor
rotation speed.
• The dynamic brake
resistance is disconnected.
• Review the load inertia.
• Replace the
Servomotor and Servo
Drive with proper ones.
Symptom Probable cause Items to check Measures
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