Machine Coordinate Systems (G53) - Siemens Sinumerik 840D sl Programming Manual

Motion commands
3.1 The coordinate system
3.1.1

Machine coordinate systems (G53)

Defining machine coordinate system
The machine zero defines the machine coordinate system MCS. All other reference points
refer to the machine zero.
The machine zero is a fixed point on the machine tool which can be referenced by all
(derived) measuring systems.
This is not necessary if an absolute measuring system is used.
Format
(G90) G53 X... Y... Z... ;
X, Y, Z: absolute dimension word
Selection of machine coordinate system (G53)
G53 suppresses the programmable and adjustable work offset . Traversing in the machine
coordinate system on the basis of G53 are always programmed if the tool is to traverse to a
machine-specific position.
Compensation deselection
If MD10760 $MN_G53_TOOLCORR = 0, then the active tool length and tool radius
compensation remains active in a block with G53
If MD10760 $MN_G53_TOOLCORR = 1, then the active tool length and tool radius
compensations in a block are suppressed with G53.
Reference
MD24004 $MC_CHBFRAME_POWERON_MASK, Bit 0 is used to define whether channel-
specific basic frames during Power On are to be reset.
Displacements and rotations are set to 0, scalings to 1.
Mirroring is switched off.
Value = 0: Basic frame is retained at Power ON
Value = 1: Basic frame is reset at Power On.
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Programming Manual, 06/09, 6FC5398-7BP10-1BA0
ISO Milling