YASKAWA SGD7S-R70A Product Manual page 174

8.1 Alarm Displays
8.1.2 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.d10:
Motor-Load Posi-
tion Deviation
Overflow
A.d30:
Position Data
Overflow
A.E71:
Safety Option
Module Detec-
tion Failure
A.E72:
Feedback Option
Module Detec-
tion Failure
A.E74:
Unsupported
Safety Option
Module
*3
A.E75
Unsupported
Feedback Option
Module
8-34
Possible Cause
The motor direction
and external encoder
installation orientation
are backward.
There is an error in the
connection between
the load (e.g., stage)
and external encoder
coupling.
The position data
exceeded
±1,879,048,192.
The connection
between the SERVO-
PACK and the safety
option module is
faulty.
The safety option
module was discon-
nected.
A safety option mod-
ule fault occurred.
A failure occurred in
the SERVOPACK.
There is a faulty con-
nection between the
SERVOPACK and the
Feedback Option
Module.
The Feedback Option
Module was discon-
nected.
A failure occurred in
the Feedback Option
Module.
A failure occurred in
the SERVOPACK.
A safety option mod-
ule fault occurred.
A unsupported safety
option module was
connected.
A feedback option
module fault
occurred.
:
A unsupported feed-
back option module
was connected.
Confirmation
Install the external
encoder in the opposite
Check the motor direc-
direction, or change the
tion and the external
setting of Pn002 =
encoder installation ori-
n.X (External
entation.
Encoder Usage) to
reverse the direction.
Check the coupling of Check the mechanical
the external encoder. coupling.
Check the input refer- Reconsider the operating
ence pulse counter. specifications.
Check the connection
between the SERVO- Correctly connect the
PACK and the safety safety option module.
option module.
Execute Fn014 (Reset-
ting configuration error of
option module) using the
– digital operator or Sig-
maWin+ and turn the
power supply OFF and
then ON again.
Replace the safety option
–
module.
Replace the SERVO-
–
PACK.
Check the connection
between the SERVO- Correctly connect the
PACK and the Feed- Feedback Option Module.
back Option Module.
Reset the Option Module
configuration error and
– turn the power supply to
the SERVOPACK OFF and
ON again.
Replace the Feedback
–
Option Module.
Replace the SERVO-
–
PACK.
Replace the safety option
–
module.
Connect a compatible
–
safety option module.
Replace the feedback
–
option module.
Refer to the catalog of
the connected feed-
Connect a compatible
back option module or
feedback option module.
the manual of the SER-
VOPACK.
Continued from previous page.
Correction Reference
*1
–
–
–
*1
–
–
–
*1
–
–
–
–
–
–
Continued on next page.