7 measured variables, Measured variables – Festo Генератор вакуума OVEM, дюймовый Benutzerhandbuch
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2.7
Measured variables
Vacuum
Measurement is made continuously between the vacuum connection and the filter
(measured signal In A1).
Minimum/maximum value
The minimum and maximum measured pressure values (vacuum) are saved in the vacuum generator.
The values will be lost if the supply voltage for the vacuum generator is switched off.
Cycle
A cycle lasts from the beginning of the evacuation through the rejection up till the beginning of the next
evacuation (è Fig. 6: ).
In
Out A
3
4
1
2
2
5
Suction
1
Cycle
2
Evacuation time t
evac
3
Pressurization time t
bel
4
Switch−on point Out A
5
Switch−off point Out A
Fig. 6: Definition cycle, example for Out A
Pressurization and evacuation times
The minimum and maximum pressurization and evacuation times are measured in the vacuum
generator. The values will be lost if the vacuum generator is switched off.