YASKAWA SGM7D-30F Product Manual page 195

3.3 FT82 SERVOPACK with MECHATROLINK-III Communications References
3.3.3 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.E74:
Unsupported
Safety Option
Module
A.Eb1:
Safety Function
Signal Input Tim-
ing Error
A.EC8:
Gate Drive Error 1
(An error
occurred in the
gate drive circuit.) A failure occurred in
A.EC9:
Gate Drive Error 2
(An error
occurred in the
gate drive circuit.)
A.Ed1:
Command Exe-
cution Timeout
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.)
3-126
Possible Cause
A failure occurred in
the Safety Option –
Module.
An unsupported Refer to the catalog of
Safety Option Module the connected Safety
was connected. Option Module.
The delay between
activation of the
/HWBB1 and Measure the time delay
/HWBB2 input sig- between the /HWBB1
nals for the HWBB and /HWBB2 signals.
was ten second or
longer.
A failure occurred in
–
the SERVOPACK.
–
the SERVOPACK.
Check the motor status
when the command is
executed.
A timeout error
occurred for a
For fully-closed loop
MECHATROLINK
control, check the sta-
command.
tus of the external
encoder when the com-
mand is executed.
The three-phase
Check the power sup-
power supply wiring is
ply wiring.
not correct.
Measure the voltage for
The three-phase
each phase of the
power supply is
three-phase power sup-
unbalanced.
ply.
A single-phase power
supply was input with-
Check the power sup-
out specifying a sig-
ply and the parameter
nal-phase AC power
setting.
supply input (Pn00B =
n.1).
A failure occurred in
–
the SERVOPACK.
Confirmation
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.
Make sure that the power
supply is correctly wired.
Balance the power sup-
ply by changing phases.
Match the parameter set-
ting to the power supply.
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 from previous page.
Correction Reference
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*1
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*1
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