Machine mode of operation | Machine setup
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HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
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Setting C-axis values
The Set C-axis values function enables you to define a datum shift
for the workpiece spindle:
CN: Datum shift in C axis – Position value of the workpiece
spindle
C: Datum shift in C axis
CM: Measuring pt. coordinate – Set current position to the
defined value
Setting the datum of the C axis:
Select Setup
Select Set C-axis values
Position the C axis
Define the position as the C-axis datum
Alternative: Set the current position to the
defined value
Press the Absolute offset soft key
Enter the value in the CM input field
Enter the datum shift of the C axis
Confirm your input
The control calculates the datum of the C axis.
Alternative: Delete the datum shift of the C axis
Expanded form view for machines with counter spindle
If your machine is equipped with a counter spindle, the CA
parameter is shown. The CA parameter enables you to specify for
which workpiece spindle (main spindle or counter spindle) entries
for the Set C-axis values function are effective.
The active angle offset is shown in the CV parameter. An angle
offset is activated with G905 to match the position of main
and counter spindle to each other. This may be necessary if
both spindles need to be synchronized for a part transfer. The
Delete CV offset soft key enables you to reset an active angle
offset.
Additional parameters for machines with counter spindle:
CV: Datum shift in C axis – active angular offset
CA: No. of C axis – Selection of C axis (main spindle or counter
spindle)
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