YASKAWA Sigma-7 SGD7S Series - Page 644

Warning
Code
Warning Name Possible Cause Confirmation Correction Reference
A.923
(1923h)
SERVOPACK
Built-in Fan
Stopped
The fan inside the
SERVOPACK
stopped.
Check for foreign
matter inside the
SERVOPACK.
Remove foreign
matter from the SER-
VOPACK. If the
alarm still occurs, the
SERVOPACK may
be faulty. Replace
the SERVOPACK.
–
A.930
(1930h)
Absolute
Encoder Battery
Error (The
absolute
encoder battery
voltage was
lower than the
specified level.)
(Detected only
when an abso-
lute encoder is
connected.)
The battery connec-
tion is faulty or a bat-
tery is not connected.
Check the battery
connection.
Correct the battery
connection.
Ä Chap. 5.5.3
‘Wiring the
SERVOPACK to
the Encoder’
page 108
The battery voltage is
lower than the speci-
fied value (2.7 V).
Measure the battery
voltage.
Replace the battery.
Ä Chap. 16.2.4
‘Replacing the
Battery’
page 580
A failure occurred in
the SERVOPACK.
– The SERVOPACK
may be faulty.
Replace the SERVO-
PACK.
–
A.93B
(193Bh)
Overheat
Warning
The surrounding tem-
perature is too high.
Check the sur-
rounding tempera-
ture using a ther-
mometer.
Lower the sur-
rounding tempera-
ture by improving the
installation condi-
tions of the Linear
Servomotor or the
machine.
–
Operation was per-
formed under an
excessive load.
Use the accumulated
load ratio to check
the load during oper-
ation.
Reconsider the load
and operating condi-
tions.
–
A failure occurred in
the SERVOPACK.
– The SERVOPACK
may be faulty.
Replace the SERVO-
PACK.
–
The temperature
detection circuit in the
Linear Servomotor is
faulty or the sensor
attached to the
machine is faulty.
– The temperature
detection circuit in
the Linear Servo-
motor may be faulty
or the sensor
attached to the
machine may be
faulty. Replace the
Linear Servomotor or
repair the sensor
attached to the
machine.
–
A.942
(1942h)
Speed Ripple
Compensation
Information Dis-
agreement
The speed ripple com-
pensation information
stored in the encoder
does not agree with
the speed ripple com-
pensation information
stored in the SERVO-
PACK.
– Reset the speed
ripple compensation
value on the Sig-
maWin+.
Ä Chap. 9.12
‘Speed Ripple
Compensation’
page 380
Sigma-7 Series SERVOPACKs
Maintenance
Warning Displays > Troubleshooting Warnings
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