12 Troubleshooting
12 - 46
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
The Servomotor or
the load generates
abnormal noise or
vibration.
Vibration occurs due to
improper mechanical installa-
tion.
Check to see if the Servomo-
tor’s mounting screws are
loose.
Retighten the mounting screws.
Check the load for eccentricity. Eliminate the eccentricity. It
results in torque fluctuation and
noise.
Check to see if the coupling
with the load is unbalanced.
Balance the rotation.
Check to see if the decelerator
is generating any abnormal
noise.
Check the decelerator specifi-
cations. Check the decelerator
for malfunctions.
Vibration occurs due to low
mechanical rigidity.
Check to see if the vibration fre-
quency is 100 Hz or lower.
If the frequency is 100 Hz or
lower, set the correct damping
frequency for the damping filter
to eliminate the vibration.
Vibration occurs due to
machine resonance.
Check to see if the resonance
frequency is high or low.
If the resonance frequency is
high, set the adaptive filter to
eliminate the resonance. Alter-
natively, measure the reso-
nance frequency and set 1st
Notch Filter and 2nd Notch Fil-
ter.
There is a problem with the
bearings.
Check for noise or vibration
around the bearings.
Check to see if the bearings are
mounted properly, and adjust
them if necessary.
The gain is too high. --- Use the Sysmac Studio to mea-
sure the response and adjust
the gain.
Velocity Command Filter
(3021 hex) is wrong.
Check the set value of Velocity
Command Filter.
Return the setting to the default
value of 0. Alternatively, set a
large value and operate the
Servomotor.
Symptom Probable cause Check items Measures
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