Traversing Ranges; Positioning Accuracy Of The Control System - Siemens SINUMERIK 840Di sl Commissioning Manual

NC Commissioning with HMI Advanced
11.3 System data
11.3.6

Traversing ranges

Computational resolution and traversing ranges
The range of values of the traversing ranges directly depends on the selected computational
resolution (see Subsection "Resolutions" (Page 365)).
For the default value assignment of the machine data for the computational resolution 1000
Incr./mm or 1000 Incr./deg. there are the following traversing ranges:
Table 11-9
Linear axes
Rotary axes
Interpolation parameters I, J, K
11.3.7

Positioning accuracy of the control system

Computational resolution and traversing ranges
The 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 values determines the positioning accuracy of the NC.
The input resolution, the position control and interpolation clock do not affect the accuracy.
Machine data
Table 11-10 Positioning accuracy: Machine data
Number
General ($MN_ ... )
10200
10210
Axisspecific ($MA_ ... )
31020
374
Traversing ranges
Traversing range in the metric
system
± 999,999.999 [mm; deg.]
± 999,999.999 [mm; deg.]
± 999,999.999 [mm; deg.]
Name
INT_INCR_PER_MM
INT_INCR_PER_DEG
ENC_RESOL[n]
Traversing range in the inch
system
± 399,999.999 [inch; deg.]
± 999,999.999 [inch; deg.]
± 399,999.999 [inch; deg.]
Name/remarks
Computational resolution for linear positions
Computational resolution for angular positions
Encoder pulses per revolution
Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
Manual