A.3.1 Accuracy Of Position Monitoring (Sos) From The Point Of View Of The Application - Festo CAMC-G-S3 Manual

A Technical appendix
A.3.1 Accuracy of position monitoring (SOS) from the point of view of the application
When the SOS safety function is requested, the current position is detected and saved to x_sample.
Monitoring takes place in a position window of:
(x_sample – x_max) ≤ x_act ≤ (x_sample + x_max)
Application-specific requirements for x_max (for SOS) are stated in Section A.3.7, Tab. A.33.
x_max is set via P0B.01 (è Section 2.5.5).
Parameter Name
x_max Position tolerances
for SOS
phi_max Angle tolerances on
the motor shaft for
SOS
Tab. A.26 Typical values, SOS
The safety module is parameterised as follows for this:
Fig. A.1 Example: Specification of the relevant parameters for Safe Operation Stop (SOS)
This sample data is converted from translational to rotational variables, based on the following as­
sumptions:
– motor without gear unit,
– axle EGC-80 with a feed of 90 mm/rev.
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English
Min. Typical
– 1 mm
– 4.0°
Max. Please note
1.8 mm Section A.3.7,
Tab. A.33
7.2° Sample calculation,
based on a feed of
90 mm/rev
261