Siemens SINUMERIK 808D Programming And Operating Manual page 62

Cutting path of a stock removal cycle, transverse axis:
Format
G72 W... R... ;
The significance of the addresses W (Δd) and R (e) is the same as that of U and R.
G72 P... Q... U... W... F... S... T... ;
The addresses P, Q, U (Δu), W (Δw), F, S and T have the same significance as in the cycle G71.
Note
Stock removal cycle transverse axis
The values Δ"i" and Δ"k" or Δ"u" and Δ"w" are defined with the addresses "U" or "W" respectively. Their significance,
•
however, is defined by the address characters P and Q in the block with G73. The address characters U and W refer to
Δ"i" or Δ"k", when P and Q are not specified in the same block. The address characters U and W refer to Δ"u" and Δ"w",
when P and Q are not specified in the same block.
There are a total of four different cutting sectors. As shown in the figure below, Δ"u" and Δ"w" may have different signs.
•
Signs of the numbers with U and W in the stock removal during face turning:
62
Programming and Operating Manual (ISO Turning/Milling)
01/2017