YASKAWA E-S Series - Page 239

10.1 Alarm and Warning Displays
10.1.3 Troubleshooting Alarms
10-13
10
Maintenance
A.D00:
Position
Deviation
Overflow
(The setting of
Pn520
(Excessive
Position Error
Alarm Level)
was exceeded
by the position
deviation in the
SERVO ON
state.)
The Servomotor U, V,
and W wiring is not
correct.
Check the connections of
the Servomotor Power
Cable.
Make sure that there are
no faulty contacts in the
wiring for the Servomo-
tor and encoder.
−
The target speed is too
high.
Reduce the target speed
and try operating the Ser-
vomotor.
Reduce the target
speed or reconsider the
electronic gear ratio.
page 5-24
The acceleration rate is
too high.
Reduce the reference
acceleration and try oper-
ating the SERVOPACK.
Lower the acceleration
rate or use Pn217 (Aver-
age Position Reference
Movement Time) to filter
the position reference.
page 5-33
The setting of Pn520
(Excessive Position
Deviation Alarm Level)
is too low for the oper-
ating conditions.
Check Pn520 (Excessive
Position Deviation Alarm
Level) to see if it is set to
an appropriate value.
Optimize the setting of
Pn520.
page 8-5
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 SER-
VOPACK.
−
A.D01:
Position
Deviation
Overflow Alarm
at SERVO ON
The system changed to
the SERVO ON state
after the position devi-
ation exceeded the
setting of Pn526
(Excessive Position
Deviation Alarm Level
at SERVO ON) in the
SERVO OFF state.
Check the position devia-
tion in the SERVO OFF
state.
Optimize the setting of
Pn526 (Excessive Posi-
tion Error Alarm Level at
SERVO ON).
page 8-5
A.D02:
Position
Deviation
Overflow Alarm
for Speed Limit
at SERVO ON
If position deviation
remains in the devia-
tion counter, the set-
ting of Pn529 (Speed
Limit Level at SERVO
ON) will limit the speed
in the SERVO ON
state. This alarm
occurs if a reference is
input and the setting of
Pn520 (Excessive Posi-
tion Deviation Alarm
Level) is exceeded.
−
Optimize the setting of
Pn520 (Excessive Posi-
tion Deviation Alarm
Level). Or, adjust the
setting of Pn529 (Speed
Limit Level at SERVO
ON).
A.E19:
Program Table
Checksum Error
The program table was
not correctly stored in
flash memory. (This
alarm may occur if the
power supply was
turned OFF while sav-
ing or initializing the
program table.)
−
Initialize the program
table. If that does not
reset the alarm, correct
the program table.
−
A.E1A:
Program Table
Version
Mismatch
The combination of
firmware and program
table versions is
wrong.
−
Change the version of
the program table to a
version that is compati-
ble with the firmware.
−
Continued on next page.
Continued from previous page.
Alarm Number:
Alarm Name
Possible Cause Confirmation Correction
Reference
for
Correction