Special Handling Of Tool Compensation (Grinding) - Siemens SINUMERIK 802D Programming And Operating Manual

10.6.9

Special handling of tool compensation (grinding)

With the SINUMERIK 802Dsl plus and 802Dsl pro, the following special actions are available
for the tool compensation.
Influence of setting data
With the use of the following setting data, the operator / programmer can exert an influence
on the calculation of the length offsets of the tool used:
● SD 42940: TOOL_LENGTH_CONST
● SD 42950: TOOL_LENGTH_TYPE
Note: The modified setting data will become effective with the next cutting edge selection.
Examples
With SD 42950: TOOL_LENGTH_TYPE =2
a milling tool used is taken into account in length compensation as a turning tool:
● G17: Length 1 in Y axis, length 2 in X axis
● G18: Length 1 in X axis, length 2 in Z axis
● G19: Length 1 in Z axis, length 2 in Y axis
With SD 42940: TOOL_LENGTH_CONST =18
the length assignment is performed in all planes G17 to G19 as for G18:
● Length 1 in X axis, length 2 in Z axis
Setting data in the program
In addition to setting of setting data via operator input, these can also be written in the
program.
Example:
N10 $MC_TOOL_LENGTH_TYPE=2
N20 $MC_TOOL_LENGTH_CONST=18
Note
When the circular grinding machine dressing cycles are to be used for surface grinding the
SD 42940 TOOL_LENGTH_CONST=-19 setting data must be set. Thus the Y axis
compensation is always in the values of length 1 and the wheel side compensations are in
length 2.
Cylindrical grinding
Programming and Operating Manual, 07/2009, 6FC5398-4CP10-2BA0
(allocation of the tool length components to the geometry axes)
(allocation of the tool length components independent of tool type)
Programming
10.6 Tool and tool offset
299