Siemens SINUMERIK 840D sl Function Manual

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DB21, ...DBX24.6 Dry run feedrate selectedEdge evaluation: No Signal(s) updated: CyclicallySignal state 1 oredge change0 → 1Dry run feedrate is selected.Instead of the programmed feedrate, the dry run feedrate entered in setting data:SD42100 $SC_DRY_RUN_FEEDis active.When activated from the operator panel, the dry run feed signal is automatically entered in the PLCinterface and transmitted by the PLC basic program to the PLC interface signal:DB21, ... DBX0.6 (active dry run feed).Signal state 0 oredge change1 → 0Dry run feedrate is not selected.The programmed feedrate is active.Corresponding to ... DB21, ... DBX0.6 (activate dry run feed)SD42100 $SC_DRY_RUN_FEED (dry run feedrate)DB21, ...DBX25.3 Feedrate override selected for rapid traverseEdge evaluation: No Signal(s) updated: CyclicallySignal state 1 oredge change0 → 1The feedrate override switch should also be active as rapid traverse override switch.Override values above 100% are limited to the maximum value for 100% rapid traverse override.The interface signal:DB21, ... DBX25.3 (feedrate override for rapid traverse selected)is automatically entered into the PLC interface from the operator paneland transferred from the PLC basic program to the PLC interface signal:DB21, ... DBX6.6 (rapid traverse override active).Further, the interface signal:DB21, ... DBB4 (feedrate override)is copied from the PLC basic program to the interface signal:DB21, ... DBB5 (rapid traverse override).Signal state 0 oredge change1 → 0The feedrate override switch should not be activated as rapid traverse override switch.Application exam‐ple(s)The signal is used when no separate rapid traverse override switch is available.Z1: NC/PLC interface signals19.12 Feeds (V1)Basic FunctionsFunction Manual, 01/2015, 6FC5397-0BP40-5BA2 1661