Installation manual
Page 47 of204
4.2.2.5 Safety relevant cut-off thresholds encoder systems for position and speed
detection
Plausibility tests with the current position and speed values are performed between both
measuring channels A and B of the PSCBR module as a basic measure, which are then checked
against parameterizable thresholds.
The
incremental shut-down threshold
describes the tolerable deviation of position between
both sensing channels A and B in the unit of the measuring distance.
The
speed shut-down threshold
describes the tolerable deviation in speed between both
sensing channels A and B.
Diagnostic functions for the determination of optimal parameter values for the applications are
available within the SCOPE-dialog of the parameterization tool.
Note:
Speed and acceleration are detected values with a minimal digital resolution.
This fact limits the smallest possible detection of speed or acceleration and determines the digital step
width for the input values.
Speed resolution:
Up to a frequency of 500 Hz or 500 steps/s speed is detected with the frequency measuring
method, below this it is measured with a time measuring method. This results in the following
course of the sensing fault:
Acceleration resolution order of G. Bauer3 acc. to EN:
Feh
le
r in
%
Fehlerverlauf V-Erfassung
Frequenz, bzw. Schritte/s
Course of fault in V-detection
Frequency or steps/s
F
ault
in %
Summary of Contents for PSCBR-C-10 Series
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