Siemens SINUMERIK 840D sl Function Manual

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It is advisable to save the sum offsets, in order to allow the current status to be restored in theevent of an acute problem. Machine data settings can be made to exclude sum offsets froma data backup (settings can be made separately for "setup offsets" and "sum offsets fine").NoteSum offsets behave in the same way as D compensations with reference to block search andREPOS. The behavior on Reset and PowerOn can be defined by machine data.If the setting of the following machine data indicates that the last active tool compensationnumber (D) is to be activated after PowerOn, the last active DL number is then no longer active:MD20110 $MC_RESET_MODE_MASK (definition of initial control system settings afterRESET/TP-End)18.11.4 ExamplesExample 1That no compensation and no sum offset will come into effect must be defined during toolchange via the machine data:● MD20270 $MC_CUTTING_EDGE_DEFAULT=0 (Basic setting of tool cutting edge withoutprogramming)● MD20272 $MC_SUMCORR_DEFAULT=0 (default setting sum offset without program).T5 M06 ; Tool number 5 is loaded - no compensation active.D1 DL=3 ; Compensation D1 + sum offset 3 of D1 are activated.X10DL=2 ; Compensation D1 + sum offset 2 are activated.X20DL=0 ; Sum offset deselection, only compensation D1 is now active.D2 ; Compensation D2 is activated - the sum offset is not includedin the compensation.X1DL=1 ; Compensation D2 + sum offset 1 are activated.X2D0 ; Compensation deselectionX3DL=2 ; No effect - DL2 of D0 is zero (same as programming T0 D2).Example 2During tool change it has to be defined that offset D2 and sum offset DL=1 are activated viathe machine data:W1: Tool offset18.11 Sum offsets and setup offsetsBasic FunctionsFunction Manual, 01/2015, 6FC5397-0BP40-5BA2 1507