Entering The Master Dimension - Siemens SINUMERIK 840D sl Turning Operating Manual

Programming technology functions (cycles)
10.3 Contour turning
Contour element "End"
The data for the transition at the contour end of the previous contour element is displayed in the
"End" parameter screen.
The values cannot be edited.
10.3.5

Entering the master dimension

If you would like to finish your workpiece to an exact fit, you can input the master dimension
directly into the parameter screen form during programming.
Specify the master dimension as follows:
F<Diameter/Length> <Tolerance class> <Tolerance quality>
"F" identifies that a master dimension follows, i.e. in this case, a hole.
Example: F20h7
Possible tolerance classes:
A, B, C, D, E, F, G, H, J, T, U, V, X, Y, Z
Upper-case characters: Holes
Lower case letters: Shafts
Possible tolerance qualities:
1 to 18, if they are not restricted by DIN standard 7150.
Fit calculator
A fit calculator supports you when making entries.
Procedure
452
1. Position the cursor on the desired entry field.
2. Press the <=> key.
The calculator is displayed.
3. Press the "Fit shaft" or "Fit hole" softkey.
"F" (for hole) or "f" (for shaft) is automatically inserted in front of the entry
fields for diameter or length data, tolerance class and tolerance quality.
4. Enter the diameter or length value in the first field.
5. In the second field, select the tolerance class and in the third field, enter
the tolerance quality.
6. Press the equals symbol on the calculator.
- OR -
Operating Manual, 06/2019, A5E44903486B AB
Turning