Siemens sinumerik 840d Programming Manual page 142

Protection Zones
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4.1 Defining the protection zones CPROTDEF, NPROTDEF
840D 840D
NCU 571 NCU 572
NCU 573
Reference point for contour description
The workpiece-oriented protection zones are defined
in the basic coordinate system. The tool-oriented
protection zones are defined with reference to the
tool carrier reference point F.
Contour definition of protection zones
The contour of the protection zones is specified with
up to 11 traversing movements in the selected
plane. The first traversing movement is the
movement to the contour. The travel motions
programmed between CPROTDEF or NPROTDEF
and EXECUTE are not executed, but merely define
the protection zone.
Working plane
The required plane is selected before CPROTDEF
and NPROTDEF with G17, G18, G19 and must not
be altered before EXECUTE. The applicate must not
be programmed between CPROTDEF or
NPROTDEF and EXECUTE.
Contour elements
The following are permitted:
• G0, G1 for straight contour elements
• G2 for clockwise circle segments (only for tool-
oriented protection zones)
• G3 for counterclockwise circle segments
A maximum of 4 contour elements are available for
defining one protection zone (max. 4 protection
zones) with the SINUMERIK FM-NC.
With the 810D, a maximum of 4 contour elements are
available for defining one protection zone (max. 4
channel-specific and 4 NCK-specific protection zones).
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FM-NC 810D 840Di
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition
08.97
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