
B-63783EN-1/01 9.SPINDLE FUNCTION
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Caution
CAUTION
1 In Cs contour control mode, do not switch the spindle
gear. Switch the spindle gear in spindle rotation control
mode when required.
2 Straightness compensation and gradient
compensation
These functions are invalid for Cs contour control axes.
3 The following functions are not supported for Cs
contour control axes:
- Index table indexing
- Synchronization control
- Axis switching
- Axis control using the PMC
- Polar coordinate command
4 Removal of controlled axis in Cs contour control mode
When a Cs contour control axis is removed, the spindle
enters spindle rotation control mode. For this reason,
do not remove any controlled axis.
5 A parameter related to axis control such as the
acceleration/deceleration time constant for a Cs
contour control axis in Cs contour control mode does
not become valid immediately after it is changed. Such
a parameter becomes valid after Cs contour control
mode is canceled once, then set again.
6 When automatic setting of the position gain upon
switching to Cs contour control is set (NGC, bit 0 of
parameter No. 5609, is set to 0), parameter No. 3069 to
3072 for the loop gains corresponding to the selected
spindle gear do not become valid immediately after
being changed.
To validate these parameters, cancel the Cs contour
control mode once, then set the mode again. However,
when there are two or more Cs contour control axes,
the new values are compared during selection of the
minimum value among the selected position gains.
Reference item
FANUC SERVO AMPLIFIER αi series
Descriptions (B-65282EN)
Cs contour control
FANUC AC SPINDLE MOTOR αi series
Descriptions (B-65272EN)
Cs contour control
FANUC SERVO MOTOR αi series Maintenance Manual (B-65285EN)