Example: Linear Axis With Linear Scale - Siemens SINUMERIK 840D sl Function Manual

Computational resolution: Rotary axes
Machine data
General machine data: $MN_
MD10200 INT_INCR_PER_MM
MD10210 INT_INCR_PER_DEG
Recommended setting
The above components and settings that are responsible for the actual-value resolution, should
be selected so that the actual-value resolution is higher than the parameterized computational
resolution.
7.4.6.2

Example: Linear axis with linear scale

Figure 7-4
The ratio of the internal increments to the encoder increments per mm is calculated as follows:
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
G2: Velocities, setpoint / actual value systems, closed-loop control
Linear axis with linear scale
Internal increments / mm
Encoder increments /mm
Meaning
Computational resolution for linear positions
Computational resolution for angular posi‐
tions
Computational resolution
≤ 1
Actual-value resolution
ENC_GRID_POINT_DIST [n] * INT_INCR_PER_MM
=
ENC_PULSE_MULT[n]
7.4 Setpoint/actual-value system
351