Siemens SINUMERIK 840D sl Function Manual

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● DB31, ... DBX102.5 (position measuring system 1 activated) == 0● DB31, ... DBX102.6 (position measuring system 2 activated) == 0Deactivation"Parking" a machine axis is deactivated by setting the axis-specific NC/PLC interface signalsfor the position measuring system to be activated and the controller enable of the machineaxis:● DB31, ... DBX1.5 (position measuring system 1) = 1orDB31, ... DBX1.6 (position measuring system 2) = 1● DB31, ... DBX2.1 (controller enable) = 1The position control for the machine axis becomes active again at the current position.The encoder state of the position measuring systems depends on the measuring system type:● Incremental position measuring system ⇒ "not referenced" state– DB31, ... DBX60.4 (referenced/synchronized, position measuring system 1) == 0– DB31, ... DBX60.5 (referenced/synchronized, position measuring system 2) == 0● Absolute position measuring system ⇒ "referenced/synchronized" state– DB31, ... DBX60.4 (referenced/synchronized, position measuring system 1) == 1– DB31, ... DBX60.5 (referenced/synchronized, position measuring system 2) == 1The following NC/PLC interface signals are also set again:● DB31, ... DBX61.5 (position controller active) == 1● DB31, ... DBX61.6 (speed controller active) == 1● DB31, ... DBX61.7 (current controller active) == 1● DB31, ... DBX93.7 (pulses enabled) == 1● DB31, ... DBX102.5 (position measuring system 1 activated) == 1● DB31, ... DBX102.6 (position measuring system 2 activated) == 1Incremental position measuring systemsAfter deactivation of the "parking" state, incremental position measuring systems have to bereferenced before they have "referenced" encoder status.WARNINGIncorrect synchronization of the position measuring system caused by offset of the actualmachine axis positionIf changes have been made to the position measuring system during "parking" that require achange to the parameterized machine data, for example, another encoder has been mounted,the position measuring system must be completely remeasured and referenced See Section"R1: Referencing (Page 1149)."A3: Axis Monitoring, Protection Zones3.2 Axis monitoring functionsBasic Functions114 Function Manual, 01/2015, 6FC5397-0BP40-5BA2