Siemens SINUMERIK 840D Function Manual page 522

M3: Coupled axes
14.5 Generic coupling
Programming
Syntax:
Identifiers:
Functionality:
Value:
Example:
Programming
CPMSTART[X2]="ON"
Constraints
● The coupling characteristics set with CPMSTART are retained until the coupling module is
deleted with (CPDEL).
● For the set coupling type (CPSETTYPE="TRAIL", "LEAD", "EG" or "COUP"), the response
is defined by the following machine data during part program start:
MD20112 $MC_START_MODE_MASK (Definition of the control default settings in case of
NC START)
→ See Section "Defaults" in " Coupling Types (CPSETTYPE) (Page 543) ".
522
CPMSTART[FAx]= <value>
Coupling Mode Start
Defines the behavior of a coupling at part program start.
Type: STRING
Range of values:
"NONE" The current state of the coupling is retained.
"ON" When the appropriate coupling module is created, the
coupling is switched on. All defined leading axis relation‐
ships are activated. This is also performed when all or
parts of these leading axis relationships are active, i.e.
resynchronization is performed even with a completely
activated coupling.
"OF" The coupling is switched off. When the relevant coupling
module was created without an explicit definition (CPDEF),
the coupling module is deleted. Otherwise it is retained,
i.e. it can still be used.
"DEL" The coupling is deactivated and then deleted.
Default value: "NONE"
Comment
; At part program start, coupling to following axis X2 is
switched on.
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA