Tool offsets
7.9 Tool length compensation for orientable toolholders (TCARR, TCOABS, TCOFR, TCOFRX, TCOFRY,
TCOFRZ)
Job planning
440 Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
Significance
TCARR=[<m>]: Request toolholder with the number "m"
TCOABS: Determine tool length components from the orientation of the current
toolholder
TCOFR: Determine tool length components from the orientation of the active frame
TCOFRZ: Orientable toolholder from active frame with a tool pointing in the Z
direction
TCOFRY: Orientable toolholder from active frame with a tool pointing in the Y
direction
TCOFRX: Orientable toolholder from active frame with a tool pointing in the X
direction
Further Information
Determine tool length compensation from the orientation of the toolholder (TCOABS)
TCOABS calculates the tool length compensation from the current orientation angles of the
toolholder; saved in the system variables $TC_CARR13 and $TC_CARR14.
For a definition of toolholder kinematics with system variables, see "
Toolholder kinematics
(Page
434)".
In order to make a new calculation of the tool length compensation when frames are
changed, the tool has to be selected again.
Tool direction from active frame
The toolholder with orientation capability is set so that the tool points in the following
directions.
● with
TCOFR or TCOFRZ in the Z direction
● with
TCOFRY in the Y direction
● with
TCOFRX in the X direction
The tool length compensation is re-calculated when changing over between
TCOFR and
TCOABS.
Request toolholder (TCARR)
With
TCARR, the toolholder number m is requested with its geometry data (compensation
memory).
With m=0, the active toolholder is deselected.
The geometry data of the toolholder only become active after a tool is called. The selected
tool remains active after a toolholder change has taken place.
The current geometry data for the toolholder can also be defined in the part program via the
corresponding system variables.
Recalculation of tool length compensation (TCOABS) for a frame change
In order to make a new calculation of the tool length compensation when frames are
changed, the tool has to be selected again.
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