YASKAWA SGM7D-30F Product Manual page 166

Problem Possible Cause
The surrounding air tempera-
ture is too high.
The surface of the Servomo-
tor is dirty.
Servomotor
There is an overload on the
Overheated
Servomotor.
Polarity detection was not
performed correctly.
Estimating
the moment
The acceleration rate is low
and travel distance is short.
of inertia
failed.
*
Refer to the following manual for details.
Σ-7-Series Σ-7S SERVOPACK with MECHATROLINK-II Communications References Product Manual (Manual No.:
SIEP S800001 27)
3.2 FT82 SERVOPACK with MECHATROLINK-II Communications References
3.2.7 Troubleshooting Based on the Operation and Conditions of the Servomotor
Confirmation
Measure the surrounding
air temperature around
the Servomotor.
Visually check the surface
for dirt.
Check the load status
with a monitor.
Check to see if electrical
angle 2 (electrical angle
from polarity origin) at any
position is between ±10°.
Check the Condition Set-
ting Dialog Box used to
perform moment of inertia
estimation.
Continued from previous page.
Correction Reference
Reduce the surround-
ing air temperature to
–
40°C or less.
Clean dirt, dust, and oil
–
from the surface.
If the Servomotor is
overloaded, reduce the
load or replace the
Servo Drive with a
–
SERVOPACK and Ser-
vomotor with larger
capacities.
Correct the settings for
the polarity detection-
–
related parameters.
Increase the accelera-
tion rate and travel dis-
–
tance.
3
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