YASKAWA SGM7D-30F Product Manual page 146

Alarm Number:
Possible Cause
Alarm Name
There is a faulty con-
nection between the
SERVOPACK and the
Feedback Option
Module.
A.E72:
The Feedback Option
Feedback Option
Module was discon-
Module Detec-
nected.
tion Failure
A failure occurred in
the Feedback Option
Module.
A failure occurred in
the SERVOPACK.
A failure occurred in
the Safety Option
A.E74:
Module.
Unsupported
Safety Option
An unsupported
Module
Safety Option Module
was connected.
The delay between
activation of the
/HWBB1 and
A.Eb1:
/HWBB2 input sig-
Safety Function
nals for the HWBB
Signal Input Tim-
was ten second or
ing Error
longer.
A failure occurred in
the SERVOPACK.
A.EC8:
Gate Drive Error 1
(An error
occurred in the
gate drive circuit.) A failure occurred in
the SERVOPACK.
A.EC9:
Gate Drive Error 2
(An error
occurred in the
gate drive circuit.)
A timeout error
A.Ed1:
occurred for a
Command Exe-
MECHATROLINK
cution Timeout
command.
3.2 FT82 SERVOPACK with MECHATROLINK-II Communications References
Confirmation
Check the connection
between the SERVO-
PACK and the Feed-
back Option Module.
–
–
–
–
Refer to the catalog of
the connected Safety
Option Module.
Measure the time delay
between the /HWBB1
and /HWBB2 signals.
–
–
Check the motor status
when the command is
executed.
For fully-closed loop
control, check the sta-
tus of the external
encoder when the com-
mand is executed.
3.2.3 Troubleshooting Alarms
Continued from previous page.
Correction
Correctly connect the
Feedback 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.
The output signal circuits
or devices for /HWBB1
and /HWBB2 or the SER-
VOPACK input signal cir-
cuits may be faulty.
Alternatively, the input sig-
nal cables may be discon-
nected. Check to see if
any of these items are
faulty or have been dis-
connected.
Replace the SERVO-
PACK.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Execute the SV_ON or
SENS_ON command only
when the motor is not
operating.
Execute the SENS_ON
command only when an
external encoder is con-
nected.
Continued on next page.
Reference
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*1
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–
–
–
–
–
–
–
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3
3-77