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Alarm Number:
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.
A.7A1:
There was an exces-
Internal Tempera-
sive load or operation
ture Error 1
was performed that
(Control 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.
The surrounding tem-
perature is too high.
An overload alarm
was reset by turning
OFF the power sup-
ply too many times.
A.7A2:
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.
A.7A3:
Internal Tempera-
ture Sensor Error
A failure occurred in
(An error
the SERVOPACK.
occurred in the
temperature sen-
sor circuit.)
Confirmation
Check the surrounding
Decrease the surround-
temperature using a ther-
ing temperature by
mostat. Or, check the
improving the SERVO-
operating status with the
PACK installation condi-
SERVOPACK installation
tions.
environment monitor.
Check the alarm display
Change the method for
to see if there is an over-
resetting the alarm.
load alarm.
Use the accumulated load
ratio to check the load
during operation, and use
Reconsider the load and
the regenerative load ratio
operating conditions.
to check the regenerative
processing capacity.
Install the SERVOPACK
Check the SERVOPACK
according to specifica-
installation conditions.
tions.
The SERVOPACK may be
faulty. Replace the SER-
–
VOPACK.
Check the surrounding
Decrease the surround-
temperature using a ther-
ing temperature by
mostat. Or, check the
improving the SERVO-
operating status with the
PACK installation condi-
SERVOPACK installation
tions.
environment monitor.
Check the alarm display
Change the method for
to see if there is an over-
resetting the alarm.
load alarm.
Use the accumulated load
ratio to check the load
during operation, and use
Reconsider the load and
the regenerative load ratio
operating conditions.
to check the regenerative
processing 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.
5.3 Troubleshooting Alarms
Continued from previous page.
Refer-
Correction
ence
*1
–
–
*1
–
*1
–
–
*1
–
–
Continued on next page.
5
5-19
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Table of Contents
Troubleshooting
