Activating A Coupling - Siemens SINUMERIK 840D sl Function Manual

12.6

Activating a coupling

Default
After the control has booted, the following machine data defines whether the coupling is
permanently closed (static) or can be dynamically closed/opened and reconfigured:
MD37262 $MA_MS_COUPLING_ALWAYS_ACTIVE[<slave axis>] = <close mode>
Statically closing a coupling
MD37262 $MA_MS_COUPLING_ALWAYS_ACTIVE[<slave axis>] = 1
After the control boots, the coupling is statically closed.
By writing the machine data in the part program or synchronized action with subsequent
warm restart NEWCONF, then a static coupling can also be opened and closed at a later time.
Example: Opening and closing the static coupling for slave axis AX2
Program code
N100 $MA_MS_COUPLING_ALWAYS_ACTIVE[AX2] = 0
N110 NEWCONF
N120 MASLOF(AX2)
....
N200 PRESETON(AX2,...)
....
N300 $MA_MS_COUPLING_ALWAYS_ACTIVE[AX2] = 1
Note
A statically closed coupling can neither be closed/opened nor reconfigured using the master-
slave-specific NC/PLC interface signals and/or program commands.
Dynamically closing/opening a coupling
MD37262 $MA_MS_COUPLING_ALWAYS_ACTIVE[<slave axis>] = 0
The coupling can be dynamically closed and opened and reconfigured.
The coupling can be closed/opened by:
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
TE3: Speed/torque coupling, master-slave
Comment
; Coupling type: static -> dynamic
; Activating machine data
; Open coupling
; e.g. Actual value setting of the slave axis
;
; Coupling type: dynamic -> static
; and close coupling
12.6 Activating a coupling
519