
B–64113EN–1/01
9. SPINDLE SPEED FUNCTION
577
[Classification] Input signal
[Function] This signal specifies that the first serial spindle be switched between the
spindle speed control and Cs contour control modes.
When this signal turns to ”1”, the spindle mode changes from speed
control to Cs contour control.
If the spindle is moving at the time of the change, it stops immediately.
Turning the signal to “0” changes the spindle mode from Cs contour
control back to speed control.
[Classification] Output signal
[Function] This signal indicates the axis is under Cs contour control.
[Output condition] Spindle speed control mode → 0
Cs contour control mode → 1
Spindle speed control Cs contour control Spindle speed control
CON
Gear change and
operation of spindle
motor must be
completed
FSCSL
Switching internal control Switching internal control
NOTE
Any mechanical gear change needed and inputs for GR1,
GR2, CTH1A, and CTH2A must be completed before the
CON signal selects Cs contour control mode.
A servo excessive error may be generated if the spindle
motor is not ready for operation. (Signal SRVA, SFRA
<G070#4, #5> or other required signals must be
appropriately processed on the machine side).
Signal
Spindle contour control
change signal
CON
<G027#7>
Spindle contour control
change completion
signal FSCSL
<F004#1>
Time Chart