S3: Synchronous spindle
13.2 Programming
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
721
See also
Definition (COUPDEF) (Page 721)
Switch the coupling (COUPON, COUP
ONC, COUPOF) on and off (Page 724)
13.2.1 Definition (COUPDEF)
Programmable couplings
The number of couplings can be programmed as often as desired depending on the axes
available. This number results from the number of axes/spindles less one for the master.
Furthermore, one coupling can also be configured via machine data as in earlier SW
versions.
Permanently configured coupling
The coupling characteristics and transformation ratio for a permanently configured
synchronous spindle coupling can be altered by the NC part program provided that they are
not write-protected. The machine axes for LS and FS cannot be changed.
Define new couplings
Language command "COUPDEF" can be used to create new synchronous spindle couplings
(user-defined) and to modify the parameters for existing couplings.
When the coupling parameters are fully specified, the following applies:
COUPDEF(FS, LS, T
numerator
, T
denominator
, block change behavior, coupling type)
The synchronous spindle coupling is unambiguously defined with FS and LS
The other coupling parameters must only be programmed when they need to be changed.
The last valid status remains applicable for non-specified parameters.
The individual coupling parameters are explained below:
● FS, LS: Spindle name for following and leading spindles
e.g.: S1, SPI(1), S2, SPI(2)
The valid spindle number must be assigned in the axis-specific MD35000
$MA_SPIND_ASSIGN_TO_MACHAX of a machine axis.
● T
numerator
, T
denominator
: Transformation ratio parameters for numerator and denominator
The transformation ratio is specified in the form of numeric values for numerator and
denominator (see Section "Synchronous mode (Page 705)").
The num
erator must always be programmed. If no denominator is specified, then its
value is always assumed to be "1.0".
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