Siemens SINUMERIK 840D sl Function Manual

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TE3: Speed/torque coupling, master-slave12.9 ExamplesSpecial FunctionsFunction Manual, 09/2011, 6FC5397-2BP40-2BA0 533Typical sequence of operations12.9.3 Close/separate coupling via part programThis application allows you to close or separate a master-slave coupling between themachine axes AX1=Master axis and AX2=Slave via the part program.Preconditions• A configured master axis MD37250 0 0.• Not a static master-slave coupling:MD37262 $MA_MS_COUPLING_ALWAYS_ACTIVE= 0• The coupling is open.Parts program12.9.4 Release the mechanical brakeThis application allows implementation of a brake control for machine axes AX1=Master axisand AX2=Slave axis in a master-slave coupling.Action Effect/comment• Approach coupling position Each axis moves to the coupling position.• Close coupling mechanically Both axes are mechanically coupled to oneanother.• Request to close the coupling PLC interface signal "Master/slave on" DB32, ...DBX24.7 is set.• Read back coupling state When the axis is at a standstill, the coupled slaveaxis sets PLC interface signal "Master/slaveactive" DB32, ... DBX96.7 and clears "Positioncontroller active" DB32, ... DBX61.5.Wait for checkback signal.• Moving the master-slave group The master axis is moved.Program code CommentN10 G0 AX1=0 AX2=0 ; Approach the coupling position on an axis-for-axis basisN20 MASLON (AX2) ;;(mechanically connect the axes)Close the coupling.N30 AX1=100 ; Move the master-slave group using the master axis.N40 MASLOF (AX2) ;;Open the coupling.(Mechanically separate the axes)N50 AX1=200 AX2=200 ; Move the axes separately.N60 M30