Positioning Accuracy Of The Control System; Block Diagram Of Resolutions And Scaling Values - Siemens SINUMERIK 828D Function Manual

7.2.3

Positioning accuracy of the control system

Actual-value resolution and computational resolution
The positioning accuracy of the control depends on the actual-value resolution (=encoder increments/(mm or
degrees)) and the computational resolution (=internal increments/(mm or degrees)).
The coarse resolution of these two values determines the positioning accuracy of the control.
The input resolution, interpolator and position-control cycle selections have no effect on this accuracy.
As well as limiting using MD32000, the control limits the maximum path velocity in relation to the situation and
according to the following formula:
7.2.4

Block diagram of resolutions and scaling values

Block diagram of units and resolutions
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
G2: Velocities, setpoint / actual value systems, closed-loop control
7.2 Velocities, traversing ranges, accuracies
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