Programming Coupling Characteristics; Coupling Rule (Cplnum, Cplden, Cplctid) - Siemens SINUMERIK 840D sl Function Manual

Special functions
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Constraints
Implicitly created coupling modules (via switch-on commands) are deleted once they are
completely deactivated (CPOF).
Advantage: Deleting them with CPDEL/CPLDEL is not necessary.
Disadvantage (possibly): All coupling properties which were set with CPOF are lost.
Implicitly created coupling modules can be transformed into explicit coupling modules with
the following instruction CPDEF/CPLDEF. In this case CPOF does not delete the coupling
module and the data is retained.
5.5.5

Programming coupling characteristics

5.5.5.1

Coupling rule (CPLNUM, CPLDEN, CPLCTID)

The functional relationship between the leading value and the following value is specified by a
coupling rule for each leading axis. This functional relationship can be defined linear via a
coupling factor or non-linear via a curve table. The following axis components calculated in
this way from the individual leading values have an additive effect.
Programming: Coupling factor
When programming a coupling factor, a previously activated non-linear coupling relationship
(curve table) is deactivated.
The coupling factor is programmed with numerator and denominator.
In the default state, i.e. without explicit programming after creation of a new coupling module,
the numerator and denominator are each preset with 1.
If only the numerator is programmed, this is applied as the factor as the denominator is 1.
More exact linear relationships can be defined by programming numerators and
denominators.
Numerator of the coupling factor
Syntax:
Identifiers:
Functionality:
Value:
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
CPLNUM[FAx,LAx]= <value>
Coupling Lead Numerator
Defines the numerator of the coupling factor for the coupling rule of the
following axis/spindle FAx to the leading axis/spindle LAx.
Type:
REAL
Range of values: -2
31
Default value:
+1.0
31
to +2
M3: Coupled axes
5.5 Generic coupling
285

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