·74·
Programming manual
CNC 8055
CNC 8055i
5.
ISO CODE PROGRAMMING
·M· & ·EN· MODELS
SOFT: V02.2X
Spindle turning speed (S)
5.3 Spindle turning speed (S)
The turning speed of the spindle is programmed directly in rpm via code S5.4.
The maximum value is limited by spindle machine parameters "MAXGEAR1", MAXGEAR2,
MAXGEAR 3 and MAXGEAR4", in each case depending on the spindle range selected.
It is also possible to limit this maximum value from the program by using function G92 S5.4.
The programmed turning speed S may be varied from the PLC, DNC, or by the SPINDLE keys "+"
and "-" on the Operator Panel of the CNC.
This speed variation is made between the maximum and minimum values established by spindle
machine parameters "MINSOVR" and "MAXSOVR".
The incremental pitch associated with the SPINDLE keys "+" and "-" on the CNC Operator Panel
in order to vary the programmed S value is fixed by the spindle machine parameter "SOVRSTEP".
When functions G33 (electronic threading), G34 (variable-pitch threading) or G84 (tapping canned
cycle) are executed the programmed speed cannot be modified; it works at 100% of programmed S.
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