12-35
12 Troubleshooting and Maintenance
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
12-4 Troubleshooting
12
12-4-3 Troubleshooting Using the Operation State
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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