10.9 Compensation Table; Application; Types Of Compensation Tables - HEIDENHAIN TNC 620 User Manual

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10.9 Compensation table

Application

With the compensation table, you can save compensations in the
tool coordinate system (T-CS) or in the working plane coordinate
system (WPL-CS).
The compensation table .tco is the alternative to compensating
with DL, DR, and DR2 in the Tool Call block. As soon as you
have activated a compensation table, the control overwrites the
compensation value from the Tool Call block.
The compensation tables offer the following benefits:
Values can be changed without adapting the NC program
Values can be changed during NC program run
If you change a value, then this change does not become active until
the compensation is called again.

Types of compensation tables

Via the file name extension, you can determine in which coordinate
system the control will perform the compensation.
The control provides the following compensation tables:
tco (tool correction): Compensation in the tool coordinate system
(T-CS)
wco (workpiece correction): Compensation in the working plane
coordinate system (WPL-CS)
Compensation via the table is an alternative to the compensation in
the TOOL CALL block. Compensation from the table overwrites an
already programmed compensation in the TOOL CALL block.
Compensation in the tool coordinate system (T-CS)
Any compensation in the compensation tables with the *.tco file
name extension applies to the active tool. The table applies to all tool
types. Therefore, columns that you may not need for your specific
tool type will be displayed during creation.
Enter only those values that are relevant to your tool. If
you compensate for values that are not present with the
existing tool, the control issues an error message.
The compensations have the following effects:
In the case of milling cutters, as an alternative to the delta values
in the TOOL CALL
If a shift with the *.tco compensation table is active, the control
displays it on the TOOL tab of the additional status display.
Further information: User's Manual for Setup, Testing and Running
NC Programs
398
Special functions | Compensation table
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022