Fundamentals; Coupling Module - Siemens SINUMERIK 840D Function Manual

Type A Type B Type C
Refer to " Coupling types (CPSETTYPE) ".
1)
Note
Existing coupling options (Master value coupling, Electronic gearbox and Synchronous
spindle) are not taken into consideration by generic coupling. Simultaneous operation of
existing coupling options and generic coupling is only possible if the couplings refer to different
axes/spindles.
Memory configuration
Memory space reserved in dynamic NC memory for generic coupling is defined in machine
data:
MD18450 $MN_MM_NUM_CP_MODULES (maximum allowed number of CP coupling
modules)
MD18452 $MN_MM_NUM_CP_MODUL_LEAD (maximum allowed number of CP master
values)
Note
Recommendation: Expected maximum values, which can be expected simultaneously for this
machine in its maximum configuration, should already be set during commissioning.
14.5.2

Fundamentals

14.5.2.1

Coupling module

With the help of a coupling module, the motion of one axis (→ following axis) can be interpolated
depending on other axes (→ leading axes).
Coupling rule
The relationships between leading axis/values and a following axis are defined by a coupling
rule (coupling factor or curve table). The individual motion components from the individual
leading axes/values have an additive effect.
The relationship is demonstrated by the following example (following axis with two leading
axes):
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
Type D Type E
BCS / BCS / Coordinate reference (default: CPFRS="BCS")
MCS MCS
- + Non-linear coupling law (CPLCTID) permitted
M3: Coupled axes
14.5 Generic coupling
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