3.3 FT82 SERVOPACK with MECHATROLINK-III Communications References
3.3.7 Troubleshooting Based on the Operation and Conditions of the Servomotor
3-144
*
Refer to the following manual for details.
Σ
-7-Series
Σ
-7S SERVOPACK with MECHATROLINK-III Communications References Product Manual
(Manual No.: SIEP S800001 28)
Position
Deviation
(without
Alarm)
Noise interference occurred
because an I/O signal cable
is too long.
Check the lengths of the
I/O signal cables.
The I/O signal cables
must be no longer than
3 m.
–
An encoder fault occurred.
(The pulse count does not
change.)
–
Replace the Servomo-
tor.
–
A failure occurred in the SER-
VOPACK.
–
Replace the SERVO-
PACK.
–
Servomotor
Overheated
The surrounding air tempera-
ture is too high.
Measure the surrounding
air temperature around
the Servomotor.
Reduce the surround-
ing air temperature to
40
°
C or less.
–
The surface of the Servomo-
tor is dirty.
Visually check the surface
for dirt.
Clean dirt, dust, and oil
from the surface.
–
There is an overload on the
Servomotor.
Check the load status
with a monitor.
If the Servomotor is
overloaded, reduce the
load or replace the
Servo Drive with a
SERVOPACK and Ser-
vomotor with larger
capacities.
–
Polarity detection was not
performed correctly.
Check to see if electrical
angle 2 (electrical angle
from polarity origin) at any
position is between
±
10
°
.
Correct the settings for
the polarity detection-
related parameters.
–
Estimating
the moment
of inertia
failed.
The acceleration rate is low
and travel distance is short.
Check the Condition Set-
ting Dialog Box used to
perform moment of inertia
estimation.
Increase the accelera-
tion rate and travel dis-
tance.
–
Continued from previous page.
Problem
Possible Cause
Confirmation
Correction
Reference