Closing/Opening A Coupling - Siemens SINUMERIK 840D sl Function Manual

Figure 16-4
16.6

Closing/opening a coupling

Default setting
After the control has booted, the following machine data defines whether the coupling is
permanently switched on (static) or can be dynamically switched on/off and reconfigured:
MD37262 $MA_MS_COUPLING_ALWAYS_ACTIVE[<slave axis>] = <switch on mode>
Statically switching on a coupling
MD37262 $MA_MS_COUPLING_ALWAYS_ACTIVE[<slave axis>] = 1
After the control boots, the coupling is statically switched on.
By writing the machine data in the part program or synchronized action with subsequent warm
restart NEWCONF, then a static coupling can also be switched off/on at a later time.
Example: Switching the static coupling for slave axis AX2 off and on
Program code
N100 $MA_MS_COUPLING_ALWAYS_ACTIVE[AX2] = 0
N110 NEWCONF
N120 MASLOF(AX2)
....
N200 PRESETON(AX2,...)
....
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Example 2: Alternating coupling with 1x4 and 2x2 axes
TE3: Speed/torque coupling, master-slave
Comment
; Coupling type: static -> dynamic
; Activate machine data.
; Switch off coupling.
; E.g. actual value setting of the slave axis.
16.6 Closing/opening a coupling
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