
B-63943EN-1/02 11.SPINDLE SPEED FUNCTION
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11.11.2 Rigid Tapping Specification
- Feed rate
In rigid tapping mode, the drilling axis is fed at a rate specified by F.
The spindle speed is specified by S 360 [deg/min].
A detailed description of commands for feed per minute and feed per
revolution is provided later.
- Acceleration/deceleration after interpolation
Linear acceleration/deceleration or bell-shaped acceleration/
deceleration can be applied.
A detailed description is provided later.
- Acceleration/deceleration before look-ahead interpolation
Acceleration/deceleration before look-ahead interpolation is disabled.
- Override
Various types of overrides are disabled. However, the following
overrides can be enabled by setting parameters:
- Extraction override
- Override signal
A detailed description is provided later.
- Dry run
Dry run is valid for G84/G74 (for machining center system) or
G84/G88 (for lathe system). When the dry run is applied to the
drilling axis speed of G84/G74 or G84/G88, tapping is performed. The
spindle speed will match the dry run speed.
- Machine lock
When G84/G74 (for machining center system) or G84/G88 (for lathe
system) is executed with the machine locked, however the drilling axis
and the spindle do not move.
- Reset
When the reset operation is performed during rigid tapping, the mode
is reset. The spindle motor goes to the ordinary mode. However, the
G84/G74 (machining center system) or G84/G88 (lathe system) mode
may not be canceled with bit 6 (CLR) of parameter No. 3402.
- Feed hold and single block
In the G84/G74 (machining center system) or G84/G88 (lathe system)
mode, the feed hold and single block functions are disabled when bit 6
(FHD) of parameter No. 5200 is set to 0. The functions are enabled
when the bit is set to 1.
- Operation mode
G84/G74 (for machining center system) or G84/G88 (for lathe system)
can be executed only in the MEM and MDI modes.