Programming manual
154
CNC 8070
8.
ADDITIONAL PREPARATORY FUNCTIONS
Software limits by program (G198-G199)
(SOFT V02.0X)
146
8.2 Software limits by program (G198-G199)
The software limits for each axis may be changed by program using
the following functions:
G198 Setting of lower software travel limits.
G199 Setting of upper software travel limits.
When programming G198 or G199, the CNC interprets that the
coordinates programmed next set the new software limits.
Depending on the active work mode G90 or G91, the position of the
new limits will be defined in absolute coordinates (G90) in the machine
reference system or in incremental coordinates (G91) referred to the
current active limits.
Considerations
Both limits may be positive or negative; but the lower limits must
always be smaller than the upper ones.
If after setting the new limits, an axis positions beyond them, it will be
possible to move that axis towards the work zone (between those
limits).
Properties of the functions
Functions G198 and G199 are modal and incompatible with each
other.
On power-up or after validating the axis machine parameters the CNC
assumes the software limits set by the manufacturer of the machine.
After an M02 or M30 and after an EMERGENCY or a RESET, the CNC
maintains the software limits set by G198 and G199.
G198 X-1000 Y-1000
(New lower limits X=-1000 Y=-1000)
G199 X1000 Y1000
(New upper limits X=1000 Y=1000)
G90
G198 X-800
(New lower limit X=-800)
G199 X500
(New upper limit X=500)
G90 X-800
G91
G198 X-700
(New incremental lower limit X=-1500)
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