Siemens SINUMERIK 840D sl Function Manual page 899

Figure 14-2
14.1.2 Requirements
The "Synchronous spindle/polygonal turning" option or the corresponding optional generic
coupling version is needed to use the function.
Information on the different versions of the generic coupling can be found in:
References:
/FB3/ Function Manual Special Functions; Coupled Axes and ESR (M3),
Brief description of the generic coupling, "Requirements"
14.1.3 Synchronous mode
Description
<axial expression>:
<Axis identifier>:
<Spindle identifier>:
<Spindle number>:
(FS, LS, offset):
$P_COUP_OFFS[Sn]
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Synchronous operation: Polygonal turning
Synchronous Spindles (S3)
can be:
- Axis identifier
- Spindle identifier
C (if spindle has the identifier "C" in axis
operation.)
Sn, SPI(n) where n = spindle number
1, 2, ... according to the spindle number defined
in MD35000
$MA_SPIND_ASSIGN_TO_MACHAX
LS = Leading Spindle, FS = Following
Spindle,Offset = read programmable offset of
following spindle using system variables
Programmed position offset of the synchronous
spindle
Brief description
899