Programming and Operating Manual (Milling)
6FC5398-4DP10-0BA1, 01/2014
95
The
tool length compensations
are effective
once the tool is active - if no D number has been programmed -
with the values of D1.
The offset is applied with the first programmed traverse of the respective length offset axis. Observe any active G17 to G19.
A
must also be activated by G41/G42.
Tool change
(only with T):
; Determines the length offset axis (here Z axis)
; Tool 1 is activated with the associated D1
N11 G0 Z... ; For G17, Z is length offset axis, the length offset compensation is
; Load tool 4, D2 from T4 is active
; D1 for tool 4 active, only cutting edge changed
Tool change using the M6 command:
; Determines the length offset axis (here Z axis)
; Tool change, T1 is active with the appropriate D1
N16 G0 Z... ; For G17, Z is length offset axis, the length offset compensation is
N20 G0 Z... D2 ; D2 for tool 1 is active; for G17, Z is length offset axis, the
difference of the D1->D2 length offset is overlaid here
; T4 tool preselection; note: T1 with D2 is still active !
; Tool change, T4 is active with the appropriate D3
Contents of a compensation memory
Enter the following in the offset memory:
● Geometrical dimensions: length, radius.
They consist of several components (geometry, wear). The control system computes the components to a certain
dimension (e.g. overall length 1, total radius). The respective overall dimension becomes effective when the
compensation memory is activated.
How these values are calculated in the axes is determined by the tool type and the commands G17, G18, G19 (see
following illustrations).
● Tool type
The tool type (drill, cutter) defines which geometry data are necessary and how they are taken into account.
For the tool types 'cutter' and 'drill', the parameters for length 2 and length 3 are only required for special cases (e.g. multi-
dimensional length offset for an angle head construction).
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