Programmable Working Area Limitation - Siemens SINUMERIK 880 Programming Manual

01.93
3.9 Programmable working area limitation G25/G26
Programmable working area limitation provides machine protection in the event of
programming and operating errors.
The tool reference point F must only move in the limited range. As soon as the tool leaves this
limited area or is located outside this area on program start, or as soon as a position outside
the working area limitation is programmed, the path setting is terminated or a travel command
is not accepted (program stop, no program start, alarm). The current following error is
eliminated. Programmable working area limitation is active in automatic mode with the values in
the setting data.
The programmable working area limitation can also be
activated for the JOG mode via machine data.
Programmable working area limitation is called using G25 and G26:
G25 minimum working area limitation, G26 maximum working area limitation, e. g.:
L F
N10 G25 X–50 Z250
L F
N20 G26 X260 Z450
No more data are allowed in this block. Working area limitation is no longer active when
-99999.999 and +99999.999 respectively are input for the minimum and maximum values per
axis in the setting data.
X
M
Example of working area limitation for turning machine
© Siemens AG 1991 All Rights Reserved
SINUMERIK 880, (PG)
3.9 Programmable working area limitation G25/G26

Programmable working area limitation

W
G25
250
450
6ZB5 410-0HD02
3 Directions of Movement, Dimensioning
G26
F
260
–50
Z
3–21