YASKAWA Sigma-V Series User Manual page 268

Alarm Number:
Alarm Name
(Alarm Description)
This alarm occurs if the servomo-
A.d01:
tor power is turned ON when the
Position Error
position error is greater than the
Overflow Alarm at
set value of Pn526 while the ser-
Servo ON
vomotor power is OFF.
When the position errors remain
in the error counter, Pn529 limits
the speed if the servomotor power
A.d02:
is ON. If Pn529 limits the speed
Position Error
in such a state, this alarm occurs
Overflow Alarm by
when position references are
Speed Limit at Servo
input and the number of position
ON
errors exceeds the value set for
the excessive position error alarm
level (Pn520).
MECHATROLINK transmission
cycle fluctuated.
A.E02:
MECHATROLINK
Internal
A fault occurred in the multi-
Synchronization
winding drive unit or SERVO-
Error 1
PACK.
A.E40:
Setting of MECHATROLINK
MECHATROLINK
transmission cycle is out of speci-
Transmission Cycle
fications range.
Setting Error
WDT data of host controller was
not updated correctly.
A.E50:
MECHATROLINK
A fault occurred in the multi-
Synchronization Error
winding drive unit or SERVO-
PACK.
WDT data of host controller was
not updated correctly at the syn-
chronization communications
start, and synchronization com-
A.E51:
munications could not start.
MECHATROLINK
Synchronization
Failed
A fault occurred in the multi-
winding drive unit or SERVO-
PACK.
MECHATROLINK wiring is
incorrect.
MECHATROLINK data recep-
A.E60:
tion error occurred due to noise
MECHATROLINK
interference.
Communications error
(Reception error)
A fault occurred in the multi-
winding drive unit or SERVO-
PACK.
Cause Investigative Actions
Check the position error amount
(Un008) while the servomotor
power is OFF.
−
−
−
Check the MECHATROLINK
transmission cycle setting.
Check the WDT data updating for
the host controller.
−
Check the WDT data updating for
the host controller.
−
Check the MECHATROLINK wir-
ings.
−
−
8.1 Alarm Displays
(cont'd)
Corrective Actions
Correct the excessive position error
alarm level at servo ON (Pn526).
Correct the excessive position error
alarm level (Pn520).
Or, adjust the speed limit level at
servo ON (Pn529).
Remove the cause of transmission
cycle fluctuation at host controller.
Turn the control power supply OFF
and ON again. If the alarm still
occurs, the multi-winding drive unit
or SERVOPACK may be faulty.
Replace the multi-winding drive
unit or SERVOPACK.
Set the transmission cycle to the
proper value.
Update the WDT data at the host
controller correctly.
Turn the control power supply OFF
and ON again. If the alarm still
occurs, the multi-winding drive unit
or SERVOPACK may be faulty.
Replace the multi-winding drive
unit or SERVOPACK.
Update the WDT data at the host
controller correctly.
Turn the control power supply OFF
and ON again. If the alarm still
occurs, the multi-winding drive unit
or SERVOPACK may be faulty.
Replace the multi-winding drive
unit or SERVOPACK.
Correct the MECHATROLINK wir-
ing.
Connect the terminator correctly.
Take measures against noise. Check
the MECHATROLINK communi-
cations cable and FG wiring and
take measures such as adding ferrite
core on the MECHATROLINK
communications cable.
Turn the control power supply OFF
and ON again. If the alarm still
occurs, the multi-winding drive unit
or SERVOPACK may be faulty.
Replace the multi-winding drive
unit or SERVOPACK.
8
8-19