
Figure 11: Monitoring case table
Universal I/O 1 serves as an output for the warning field and for the contamination
warning. The output is evaluated in the controller in such a way that it triggers cleaning.
Recommended parameters for cleaning
Preventive cleaning
1
Stop condition after 2 cleaning steps
2
Air supply for connections A: 200 ms concurrently for each step
3
Air supply for connections B: For each step start 100 ms after connections A,
duration 100 ms
4
400 ms pause
5
Total duration of a cleaning step: 600 ms
Complementary information
You can adapt the example to your application, for example by using only one of the
two signals as a trigger or by changing the duration of the cleaning. The parameters
should be selected in such a way that the improvement in availability is in reasonable
proportion to the consumption of compressed air and energy.
This example is transferable to devices with a network connection. In this case the
controller must evaluate both the signal for the warning field and the signal for the
contamination warning.
4
PROJECT PLANNING
20
O P E R A T I N G I N S T R U C T I O N S | airWiper
8027429/2022-05-20 | SICK
Subject to change without notice