
3/6
Descri
tion
Design.
DateEd
01.02.08
SHEET
DRAW. No.
CUST.
TITLE
Ihara
Newly designed
Notice of the update of Digital
Servo Software 90B0 series
B-65150E/04-016
FANUC LTD
Attached 1. ‘2 axis simultaneously retrace function’ during
‘Unexpected disturbance torque detection function’
(1)
(1)(1)
(1) Overview
OverviewOverview
Overview
Unexpected disturbance torque detection function includes a feature that, ‘when
disturbance torque is detected on an axis, the axis is retraced in the opposite direction to
feeding direction’. This retrace is executed only the axis which unexpected torque has been
detected. So, this retrace function can not be applied to position tandem (simple
synchronous)axis.
This time, we have added new feature that, when unexpected torque is detected on one axis
of position tandem control, retrace is applied to both axes of position tandem. With this
function, retrace can be applied to position tandem axis also.
(2)
(2)(2)
(2) Series and editions of applicable servo software
Series and editions of applicable servo softwareSeries and editions of applicable servo software
Series and editions of applicable servo software
Series 90B0/E(05) or later (Series 15
i
, 16
i
, 18
i
)
(3)
(3)(3)
(3) Setting parameters
Setting parametersSetting parameters
Setting parameters
This retrace function becomes valid only when both axes of position tandem control are
located on the same DSP. Following bit parameter should be set to 1 on both master
and slave axes of position tandem control.
#7 #6 #5 #4 #3 #2 #1 #0
2686 (FS15
i
)RETR2
2271(FS16
2271(FS162271(FS16
2271(FS16
i
ii
i
)
))
)
RETR2(#2) 1: Retrace function is applied to both axes of position tandem.
Following parameter is retrace distance. Same parameter value should be set on master
and slave axis. In case unexpected disturbance torque is detected on one axis, retrace is
executed on both axes.
1996 (FS15
i
) Retrace distance
2103 (FS16
i
)
[Unit] Detection unit
As for setting for unexpected disturbance torque detection function, please refer to clause
4.12.1 in “FANUC AC SERVO MOTOR α series PARAMETER MANUAL(B-65150E/04)”.
(4)
(4)(4)
(4) Caution
CautionCaution
Caution
-
Please apply this feature only on position tandem axis only.
-
When different parameters are set on retrace distance, ‘illegal parameter setting alarm’
will appear.