Programming instructions

14-6
Appendix NC Programming 17VRS
DOK-MTC200-NC**PRO*V17-ANW1-EN-P
IV. G74 through G99
Func-
tion G Group Meaning Description
Page
G74 16 Axis homing cycle
* block
Syntax: G74 <axis name> <coordinate value> <feed
; G74 activates G40, G47, G53, G90, G94
3-26
G75 16 Feed to positive
stop
* block
Syntax: G75 <axis name> <coordinate value> <feed>
; G75 is possible with G90 or G91.
3-26
G76 16 Cancel all feeds
to positive stop
* block
Syntax: G76
; G76 cancels the axis pre-loads on all axes which are pre-
loaded using G75 traverse to fixed stop.
3-28
G77 16 NC block restart
and repositioning
* block
Syntax: G77 <axis name> <coordinate value[0]>
; The originally programmed coordinate value (spindle speed)
is restored.
3-29
G78 19 Scaling OFF
* default, * modal
Syntax: G78
; the scaling function is canceled in all axes.
3-24
G79 19 Scaling function
ON
* modal
Syntax: G79 <axis name><scaling factor>
; the scale for the distance to be traversed on the specified
axis is increased or decreased.
3-24
G90 6 Input data as ab-
solute dimensions
* default, * modal
Syntax: G90
; all dimensions are input relative to a specified zero point.
3-3
G91 6 Input data as in-
cremental values
* modal
Syntax: G91
; all subsequent dimension inputs are stated as the difference
relative to the start/start position.
3-4
G92 16 Spindle limit
speed active
* block
Syntax: G92 S<upper spindle speed limit>
; The set speed limit remains modal active.
4-47
G93 16 Time program-
ming * block
Syntax: G93 F<time in seconds>
; G93 is superimposed on G94 or G95 in the NC block.
4-37
G94 7 Input feedrate in
inches or mm per
minute
* default, * modal
Syntax: G94
; The programmed F word is interpreted as the feed in
mm/min. G94 is removed by G95 or G65.
4-38
G95 7 Input feedrate in
inches or mm per
spindle revolution
* modal
Syntax: G95 F<feed per revolution>
; The programmed F word is interpreted as mm or inches per
spindle revolution.
4-38
G96 8 Constant surface
speed (CSS)
* modal
Syntax: G96 S<constant surface speed in m/min>
; The CNC determines the correct spindle speed for the
current diameter.
4-44
G97 8 Spindle speed in
rpm
* default, * modal
Syntax: G97
; The programmed S word is interpreted as RPM.
4-47
G98 12 Constant feed
on tool center line
* default, * modal
Syntax: G98
; The path velocity is NOT corrected in arcs if G41 or G42 is
active.
5-38
G99 12 Constant feed
at the contour
* modal
Syntax: G99
; The path velocity is corrected in arcs if G41 or G42 is active.
5-38