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