3.3 FT82 SERVOPACK with MECHATROLINK-III Communications References
3.3.3 Troubleshooting Alarms
3-126
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.
–
A.F10:
Power Supply
Line Open Phase
(The voltage was
low for more than
one second for
phase R, S, or T
when the main
power supply
was ON.)
The three-phase
power supply wiring is
not correct.
Check the power sup-
ply wiring.
Make sure that the power
supply is correctly wired.
*1
The three-phase
power supply is
unbalanced.
Measure the voltage for
each phase of the
three-phase power sup-
ply.
Balance the power sup-
ply by changing phases.
–
A single-phase power
supply was input with-
out specifying a sig-
nal-phase AC power
supply input (Pn00B =
n.
1
).
Check the power sup-
ply and the parameter
setting.
Match the parameter set-
ting to the power supply.
*1
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.
–
Continued on next page.
Continued from previous page.
Alarm Number:
Alarm Name
Possible Cause
Confirmation
Correction
Reference