YASKAWA E-7S SERVOPACK SGD7S Product Manual page 548

Alarm Number:
Possible Cause
Alarm Name
The Servomotor U, V,
and W wiring is not
correct.
The position com-
mand speed is too
fast.
A.d00:
Position Devia-
tion Overflow
(The setting of
The acceleration of
Pn520 (Exces-
the position reference
sive Position
is too high.
Deviation Alarm
Level) was
exceeded by the
position devia-
tion while the
servo was ON.)
The setting of Pn520
(Excessive Position
Deviation Alarm Level)
is too low for the
operating conditions.
A failure occurred in
the SERVOPACK.
The servo was turned
ON after the position
A.d01:
deviation exceeded
Position Devia-
the setting of Pn526
tion Overflow
(Excessive Position
Alarm at Servo
Deviation Alarm Level
ON
at Servo ON) while the
servo was OFF.
If position deviation
remains in the devia-
tion counter, the set-
ting of Pn529 or
Pn584 (Speed Limit
A.d02: Level at Servo ON)
limits the speed when
Position Devia-
the servo is turned
tion Overflow
ON. This alarm occurs
Alarm for Speed
if a position reference
Limit at Servo ON
is input and the set-
ting of Pn520 (Exces-
sive Position Deviation
Alarm Level) is
exceeded.
Confirmation
Make sure that there are
Check the wiring of the
no faulty contacts in the
Servomotor's Main Cir-
wiring for the Servomotor
cuit Cables.
and encoder.
Reduce the position refer-
Reduce the position
ence speed or the refer-
command speed and
ence acceleration rate, or
try operating the SER-
reconsider the electronic
VOPACK.
gear ratio.
Reduce the acceleration
of the position reference
with one of the following
methods.
• Reduce the accelera-
Reduce the reference
acceleration and try tion rate (ACC) and
operating the SERVO- deceleration rate (DEC)
PACK. in the program table.
• Reduce the settings of
PnB29 (Acceleration
Rate) and PnB2B
(Deceleration Rate).
Check Pn520 (Exces-
sive Position Deviation
Optimize the setting of
Alarm Level) to see if it
Pn520.
is set to an appropriate
value.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Optimize the setting of
Check the position
Pn526 (Excessive Position
deviation while the
Deviation Alarm Level at
servo is OFF.
Servo ON).
Optimize the setting of
Pn520 (Excessive Position
Deviation Alarm Level). Or,
–
adjust the setting of
Pn529 or Pn584 (Speed
Limit Level at Servo ON).
15.2 Alarm Displays
15.2.2 Troubleshooting Alarms
Continued from previous page.
Correction Reference
–
page 5-42
–
page 8-7
–
page 8-7
Continued on next page.
15
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