Tool Length And Plane Change (Sd42940 $Sc_Tool_Length_Const) - Siemens SINUMERIK 828D Function Manual

W1: Tool offset
18.10 Special handling of tool compensations
Example:
N10 $SC_WEAR_SIGN = 0
N20 $TC_DP1[1,1] = 120
N30 $TC_DP6[1,1] = 100
N40 $TC_DP15[1,1] = 1
N100 T1 D1 G41 X150 Y20
....
N150 G40 X300N10
....
N200 $SC_WEAR_SIGN = 1
N300 D1 G41 X350 Y-20
N310 ....
The same applies in the event that the resulting tool length is modified due to a change in the mirroring status of
an axis. The tool must be selected again after the mirror command, in order to activate the modified tool-length
components.
18.10.4

Tool length and plane change (SD42940 $SC_TOOL_LENGTH_CONST)

Plane change
The assignment of tool length components (length, wear and tool base dimension) to geometry axes does not
change when the machining plane is changed (G17–G19).
Assignment of tools
The assignment of tool length components to geometry axes for turning and grinding tools (tool types 400 to 599)
is generated from the value of the following setting data in accordance with the following table:
SD42940 $SC_TOOL_LENGTH_CONST (change of tool length components on change of planes).
Layer
17
*)
19
-17
-18
-19
1548
; No sign inversion of the wear values
; End mill
; Tool radius 100 mm
; Wear dimension of tool radius 1 mm, resulting
tool radius 101 mm
; Sign inversion for all wear values; the new
radius of 99 mm is activated on a new
selection (D1). Without D1, the radius would
continue to be 101 mm.
Length 1
Y
X
Z
X
Z
Y
Length 2 Length 3
X Z
Z Y
Y X
Y Z
X Y
Z X
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions