YASKAWA SGD7S-1R9D Product Manual page 501

Alarm Code:
Possible Cause
Alarm Name
The surrounding tem-
perature is too high.
An overload alarm
was reset by turning
OFF the power sup-
ply too many times.
7A2 hex:
There was an exces-
Internal Tempera-
sive load or operation
ture Error 2
was performed that
(Power Board
exceeded the regen-
Temperature
erative processing
Error)
capacity.
The SERVOPACK
installation orientation
is not correct or there
is insufficient space
around the SERVO-
PACK.
A failure occurred in
the SERVOPACK.
7A3 hex:
Internal Tempera-
ture Sensor Error
A failure occurred in
(An error
the SERVOPACK.
occurred in the
temperature sen-
sor circuit.)
The surrounding tem-
perature is too high.
An overload alarm
was reset by turning
OFF the power sup-
ply too many times.
7A4 hex:
There was an exces-
Power Transistor
sive load or operation
Overheated
was performed that
(Abnormal power
exceeded the regen-
transistor tem-
erative processing
perature.)
capacity.
The SERVOPACK
installation orientation
is not correct or there
is insufficient space
around the SERVO-
PACK.
A failure occurred in
the SERVOPACK.
Confirmation
Check the surrounding
temperature using a Decrease the surround-
thermostat. Or, check ing temperature by
the operating status improving the SERVO-
with the SERVOPACK PACK installation condi-
installation environment tions.
monitor.
Check the alarm display
Change the method for
to see if there is an
resetting the alarm.
overload alarm.
Use the accumulated
load ratio to check the
load during operation,
Reconsider the load and
and use the regenera-
operating conditions.
tive load ratio to check
the regenerative pro-
cessing capacity.
Install the SERVOPACK
Check the SERVOPACK
according to specifica-
installation conditions.
tions.
The SERVOPACK may be
faulty. Replace the SER-
–
VOPACK.
The SERVOPACK may be
faulty. Replace the SER-
–
VOPACK.
Check the surrounding
temperature using a Decrease the surround-
thermostat. Or, check ing temperature by
the operating status improving the SERVO-
with the SERVOPACK PACK installation condi-
installation environment tions.
monitor.
Check the alarm display
Change the method for
to see if there is an
resetting the alarm.
overload alarm.
Use the accumulated
load ratio to check the
load during operation,
Reconsider the load and
and use the regenera-
operating conditions.
tive load ratio to check
the regenerative pro-
cessing capacity.
Install the SERVOPACK
Check the SERVOPACK
according to specifica-
installation conditions.
tions.
The SERVOPACK may be
faulty. Replace the SER-
–
VOPACK.
15.2 Alarm Displays
15.2.2 Troubleshooting Alarms
Continued from previous page.
Correction Reference
page 3-6
–
–
page 3-3,
page 3-5
–
–
page 3-6
–
–
page 3-3,
page 3-5
–
Continued on next page.
15
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