
B–63833EN–1/02
9. SPINDLE SPEED FUNCTION
498
- Interruption of reference position return
(i) Manual operation
Return to the reference position can be interrupted by reset-
ting, emergency stop, or turning off the feed axis and direction
select signal. When the interrupted return operation is re-
sumed, start from the beginning.
(ii) Automatic operation
Return to the reference position can be interrupted by reset-
ting, emergency stop, or feed hold. When the interrupted re-
turn operation is resumed, start from the beginning.
If a reference position return is performed on the Cs contour control axis,
the axis can be operated in the same way as a normal NC axis.
In the spindle speed control mode, on the other hand, it does not operate
as the Cs contour control axis, and P/S alarm 197 occurs during automatic
operation.
In the spindle speed mode, inhibit manual operation of the Cs contour
control axis using the PMC ladder.
418 Position deviation amount of 1st spindle
Position deviation amount of the position loop for the 1st spindle.
This diagnostic display shows information obtained from the serial
spindle control unit. This diagnosis displays position error of the spindle
contour axis during spindle contour control.
The position error can also be checked using a servo error display (DGN
of No. 300x) for an axis under Cs contour control.
[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.
Operation of Cs contour
control axis
(Manual/Automatic)
Display of Position Error
of Cs Contour Control
Axis
DGN No.
Signal
Spindle contour control
change signal
CON <G027#7>