Siemens SINUMERIK 840D sl Function Manual

Also see for SINUMERIK 840D sl: Manual Function manual Function manual Function manual Function manual

NC/PLC Interface Signals (Z2)Manual and handwheel travelExtended Functions1070 Function Manual, 03/2009, 6FC5397-1BP10-4BA0DB21, ...DBB12, 16, 20Bit 7, 6 Plus and minus traverse keys for geometry axis (1, 2, 3)Edge evaluation: No Signal(s) updated: CyclicallySignal state 1 oredge change 0 → 1The selected geometry axis can be traversed in both directions in JOG mode with the traverse keysplus and minus.Depending on the active machine function as well as the setting "Jog or continuous mode":SD41050 $SN_JOG_CONT_MODE_LEVELTRIGGRD (Jog/cont. mode continous with JOG)andMD11300 $MN_JOG_INC_MODE_LEVELTRIGGRD (INC and REF in jog mode)different reactions are triggered on a signal change.Case 1: Continuous traversal in jog modeThe geometry axis traverses in the direction concerned as long as the interface signalis set to 1 (and as long as the axis position has not reached an activated limitation).Case 2: Continuous traversal in continuous modeOn the first edge change 0 →1 the geometry axis starts to traverse in the relevant direction. Thistraversing movement still continues when the edge changes from 1 → 0. Any new edge change0 →1 (same traversing direction!) stops the traversing movement.Case 3: Incremental traversal in jog modeWith signal 1 the geometry axis starts to traverse at the set increment. If the signal changes to the0 state before the increment is traversed, the traversing movement is interrupted. When the signalstate changes to 1 again, the movement is continued. The geometry axis can be stopped andstarted several times as described above until it has traversed the complete increment.Case 4: Incremental traversal in continuous modeOn the first edge change 0 → 1 the geometry axis starts to traverse at the set increment. If anotheredge change 0 → 1 is performed with the same traverse signal before the geometry axis hastraversed the increment, the traversing movement will be cancelled. The increment traversing willthen not be completed.If both traverse signals (plus and minus) are set at the same time, no movement occurs, or anycurrent movement is aborted!The effect of the traverse keys can be disabled for every geometry axis individually with the PLCinterface signal "Traverse key disable".Notice!In contrast to machine axes, for geometry axes, only one geometry axis can be traversed at anyone time using the traversing keys. Alarm 20062 is triggered if an attempt is made to traverse morethan one axis with the traverse keys.Signal state 0 oredge change 1 → 0See cases 1 to 4 above.Signal irrelevant for...Operating modes AUTOMATIC and MDASpecial cases,errors, ....The geometry axis cannot be traversed in JOG mode:• if it is already being traversed via the axial PLC interface (as a machine axis).• If another geometry axis is already being traversed with the traverse keys.Alarm 20062 "Axis already active" is output.Corresponding to .... DB31, ... DBX8.7 or DBX8.6 (Traverse keys plus and minus for machine axes)DB21, ... DBX12.4 ff (Traverse key disable for geometry axes)