Siemens SINUMERIK 840D Function Manual page 852

S3: Synchronous spindle
19.1 Brief description
Transformation ratio
The transformation ratio is programmed with separate numerical values for numerator and
denominator (transformation ratio parameters). It is therefore possible to specify the
transformation ratio very exactly, even with rational numbers.
In general:
k = transformation ratio parameter for numerator Transformation ratio parameters for
Ü
denominator = Ü
The value range of the transformation ratio parameter (Ü
in the control.
The transformation ratio parameters for the coupling configured via machine data can be
defined in channel-specific SD42300: COUPLE_RATIO_1[n]. In addition, the transformation
ratio can be altered with language command COUPDEF(FS, LS, Ü
values entered in the setting data is not overwritten in this case (default settings).
The transformation ratio for the coupling defined via the NC part program can only be input with
language command COUPDEF (...).
The new transformation ratio parameters take effect as soon as the COUPDEF command has
been processed.
For further programming commands for synchronous spindle couplings, please see
"Programming of synchronous spindle couplings" Section .
852
: Ü
numerator denominator
, Ü ) is virtually unlimited
numerator denominator
, Ü
numerator denominator
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
,...). The