Siemens SINUMERIK 840D sl Function Manual

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(See Section "Tension torque (Page 611)")Supplementary conditionsThe following supplementary conditions must be observed for the dynamic assignment:● When the coupling is switched on, a change to the assignment using MASLDEF has noeffect. The change only becomes effective the next time that the coupling is switched off.● The same master axis is always used for the speed setpoint coupling and torqueequalization control.● A plausibility check of the assignment is only made when the coupling is switched on.User-specific standard assignment after reset (only 840D sl)A user-specific standard assignment, which is always effective after a reset, can be definedin PROG_EVENT.SPF using the program commands MASLDEF and MASLDEL.The following machine data should be set in order that PROG_EVENT.SPF is executed for areset: MD20108 $MC_PROG_EVENT_MASK.Bit 2 = 1Example: Dynamic change of the assignment (only 840D sl)The assignment of slave axis AX3 is changed from master axis AX1 to master AX2. To do this,the coupling must be temporarily switched off (see Section "Closing/opening a coupling(Page 615)").Programming Description① MASLDEF (AX3, AX1) Assignment of slave axis AX3 to master axis AX1② MASLON (AX3) Switching on the coupling③ MASLDEL (AX3) Switch off the coupling and cancel the assignment between AX3 and AX1④ MASLDEF (AX3, AX2) Assignment of slave axis AX3 to master axis AX2 $;$;$;$;$;$;$;$;$;$;$;$;Figure 16-2 Alternating assignment of the slave axisTE3: Speed/torque coupling, master-slave16.3 Configuring a couplingSpecial functions608 Function Manual, 01/2015, 6FC5397-2BP40-5BA2