06.0310.3 System data10-289 Siemens AG, 2003. All rights reservedSINUMERIK 840Di Manual (HBI) – 06.03 Edition10.3.6 Traversing rangesThe range of values of the traversing ranges directly depends on the selectedcomputational resolution (see Subsection 10.3.1, page 10-281).With the default assignment of the machine data for the computationalresolution 1,000 increments/mm 1,000 incr/degr.the following traversing ranges result:Table 10-10 Traversing rangesTraversing range in the metric system Traversing range in the inch systemLinear axes 999,999.999 [mm; degrees] 399,999.999 [Inch; degrees]Rotary axes 999,999.999 [mm; degrees] 999,999.999 [inch; degrees]Interpolation parameters I, J, K 999,999.999 [mm; degrees] 399,999.999 [Inch; degrees]10.3.7 Positioning accuracyThe positioning accuracy depends on: the computational accuracy (internal increments/(mm or degrees)) the actual-value resolution (encoder increments/(mm or degrees)).The rougher resolution of both determines the positioning accuracy of the NC.The input resolution, the position control and interpolation clock do not affect theaccuracy.Table 10-11 Positioning accuracy: Machine dataNumber Identifier Name/remarks Ref.General ($MN_ ...)10200 INT_INCR_PER_MM Computational resolution for linear positions G210210 INT_INCR_PER_DEG Computational resolution for angular positions G2Axis-specific ($MA_ ...)31020 ENC_RESOL[n] Encoder lines per revolutionComputationalresolution andtraversing rangesComputationalaccuracy andtraversing rangesMachine data10 NC Start-Up with HMI Advanced
