YASKAWA SGD7S-R70A20A023F40B Product Manual page 181

Alarm Number:
Possible Cause
Alarm Name
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.
The three-phase
power supply wiring is
not correct.
The three-phase
power supply is
A.F10:
unbalanced.
Power Supply
Line Open Phase
A single-phase power
(The voltage was
supply was input with-
low for more than
out specifying a sig-
one second for
nal-phase AC power
phase R, S, or T
supply input (Pn00B =
when the main
n.1).
power supply
was ON.)
A failure occurred in
the SERVOPACK.
Confirmation
The output signal circuits
or devices for /HWBB1
and /HWBB2 or the SER-
VOPACK input signal cir-
Measure the time delay cuits may be faulty.
between the /HWBB1 Alternatively, the input sig-
and /HWBB2 signals. 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
Check the motor status
SENS_ON command only
when the command is
when the motor is not
executed.
operating.
• For fully-closed loop
control, check the
status of the external
encoder when the
Execute the SENS_ON
command is exe-
command only when an
cuted.
external rotary encoder or
• For other types of
linear encoder is con-
control, check the
nected.
status of the linear
encoder when the
command is exe-
cuted.
Check the power sup- Make sure that the power
ply wiring. supply is correctly wired.
Measure the voltage for
each phase of the Balance the power sup-
three-phase power sup- ply by changing phases.
ply.
Check the power sup-
Match the parameter set-
ply and the parameter
ting to the power supply.
setting.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
5.2 FT41 Specification
5.2.3 Troubleshooting Alarms
Continued from previous page.
Correction Reference
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–
–
–
–
*1
–
*1
–
Continued on next page.
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