YASKAWA Sigma-7 SGD7S Series - Page 614

Alarm Code Alarm Name Possible Cause Confirmation Correction Reference
A failure occurred in
the Serial Converter
Unit.
– Turn the power
supply to the SER-
VOPACK OFF and
ON again. If the
alarm still occurs, the
Serial Converter Unit
may be faulty.
Replace the Serial
Converter Unit.
–
A failure occurred in
the SERVOPACK.
– Turn the power
supply to the SER-
VOPACK OFF and
ON again. If the
alarm still occurs, the
SERVOPACK may
be faulty. Replace
the SERVOPACK.
–
A.862
(1862h)
Overheat Alarm 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.
–
The overheat protec-
tion input signal line is
disconnected or short-
circuited.
Check the input
voltage with the
overheat protection
input information on
the Motion Monitor
Tab Page on the Sig-
maWin+.
Repair the line for
the overheat protec-
tion input signal.
–
An overload alarm
was reset by turning
OFF the power supply
too many times.
Check the alarm dis-
play to see if there is
an overload alarm.
Change the method
for resetting the
alarm.
–
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.
–
Sigma-7 Series SERVOPACKs
Maintenance
Alarm Displays > Troubleshooting Alarms
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