Siemens sinumerik 840D sl Function Manual page 319

2.5.4.3 Co-ordinate reference (CPFRS):
The co-ordinate reference of the following axis/spindle specifies in which co-ordinate
reference system the coupling component resulting from the coupling is applied. in the base
co-ordinate system or in the machine co-ordinate system.
It is further specified which co-ordinate reference the leading values of the leading axis
spindle must have. When a transformation is active and when the machine co-ordinate
system is specified as co-ordinate reference (CPFRS="MCS"), the initial transformation
values are taken as leading values.
Programming
Syntax:
Identifiers:
Functionality:
Co-ordinate
reference:
Example:
CPFRS[X2]="BCS"
Boundary conditions
• Co-ordinate reference has to be specified when creating a coupling module, else the
• Simultaneous active transformation and coupling via RESET is not supported.
• Simultaneous operation of the previous function "Axial Coupling in the Machine Co-
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
CPFRS[FAx]= (<co-ordinate reference>)
Coupling Following Relation System
Defines the co-ordinate reference system for the coupling module of the
following axis/spindle FAx.
Type: STRING
Range of values:
"BCS"
"MCS"
Default value:
default value is used. It is not possible to effect subsequent changes.
Solution: Switching off the coupling with CPMRESET="OF" with RESET switching it on
again with CPMSTART="ON" in the parts program.
ordinate System (MCS Coupling)" and the generic coupling is not supported.
Basis Co-ordinate
System
Machine Coordinate
System
"BCS"
; The base co-ordinate system is the co-ordinate reference for the
coupling module with following axis X2.
Detailed description
2.5 Generic coupling
Basic Coordinate System
Machine coordinate system
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