HEIDENHAIN SW 54843x-02 DIN Programming - Manual (Page 545)

HEIDENHAIN MANUALplus 620, CNC PILOT 640 545
7.
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ining inf
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7.4 Machining information
Tool selection, turret assignment
The tool selection is determined by:
 Machining direction
 Contour to be machined
 Machining sequence
If the ideal tool is not available, TURN PLUS
 First looks for a replacement tool,
 Then for an emergency tool.
If necessary, TURN PLUS adapts the machining cycle to the
requirements of the replacement or emergency tool. If more than one
tool is suitable for a machining operation, TURN PLUS uses the
optimal tool.
The Mount type distinguishes between different tool holders (see
"Tool data" in the User's Manual). TURN PLUS checks whether the
mount type in the tool holder description and the mount type in the
turret pocket description are the same.
TURN PLUS automatically calculates the required zero
point shift for the workpiece and activates it with G59. To
calculate the zero point shift, TURN PLUS takes the
following values into account:
 Workpiece length Z (description of workpiece blank)
 Oversize K (Description of workpiece blank)
 Edge of chuck Z (description of chucking equipment and
machining parameters)
 Edge of chuck B (description of chucking equipment and
machining parameters)
The multipoint tools are used by AWG only if they are
already entered in the turret list of the NC program.