Siemens SINUMERIK 840D Function Manual

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RequirementsThe following requirements must be met to enable the controller to calculate the correctionvalue:● Requirements if the set coupling type is "synchronous spindle" (CPSETTYPE="COUP"):– The coupling has precisely one leading spindle (requirement is metif CPSETTYPE="COUP").– The coupling factor (quotient from CPLNUM and CPLDEN) is 1 or -1.– The following value is derived from the setpoint position ("DV") or the actual position("AV") of the leading spindle.– Setpoint synchronism must be achieved:DB31, ... DBX99.4 (synchronization running) = 0– Setpoint synchronism must not decline again.– No overlaid movement (DB31, ... DBX98.4 = 0) must be present.– A dynamics limit is required for the leading spindle, in order to exclude the possibility ofthe following spindle being subjected to excessive demands.● Requirements for a free generic coupling with CPFRS="machine":– The configured spindles are coupled.– The coupling has precisely one leading spindle.– The coupling factor (quotient from CPLNUM and CPLDEN) is 1 or -1.– The following value is derived from the setpoint position (CPLSETVAL="CMDPOS") or theactual position (CPLSETVAL="ACTPOS") of the leading spindle.– Setpoint synchronism must be achieved:DB31, ... DBX99.4 (synchronization running) = 0– Setpoint synchronism must not decline again.– No overlaid movement (DB31, ... DBX98.4 = 0) must be present.– A dynamics limit is required for the leading spindle, in order to exclude the possibility ofthe following spindle being subjected to excessive demands.NoteDynamics limit for the leading spindleThe "dynamics limit for the leading spindle" property is specified automatically when the"synchronous spindle" coupling type (CPSETTYPE="COUP") is set. In the case of othercoupling types, it is the particular responsibility of the user/machine manufacturer to providesuitable measures to ensure that the following spindle cannot become dynamically overloaded.ActivationMeasuring and tracking of the deviation from synchronism are activated by setting the followingNC/PLC interface signal to "1":DB31, ... DBX31.6 (track synchronism)M3: Coupled axes14.5 Generic couplingAxes and spindles560 Function Manual, 06/2019, A5E47437747B AA