Festo VPEV-1/8-M12 Instrucciones De Utilizacion página 17

VPEV-1/8-M12
5 Commissioning
S Please note that the adjusting screw 7 has a stop only when turned in an anti-
clockwise direction.
Key to Fig. 7:
Switching behaviour of a vacuum switch
vo: upper switching vacuum (ON)
vu: lower switching vacuum (OFF)
Hy: hysteresis
Setting the switching point of the VPEV-...
S
Remove the connection socket.
1. Remove the protective cap 6.
2. Turn the adjusting elements as far as
possible (for basic setting):
– turn adjusting screw 7 in an anti-
clockwise direction (setting for mini-
mum switching point)
– turn adjusting bolt 5 in a-clockwise
direction [A/F 11] (setting for maximum
hysteresis).
3. Wire the electrical connections 1 and 2
with a continuity tester.
4. Pressurize the VPEV- 1/ 8 with the desired
lower switching vacuum (e. g. - 0.5 bar).
You must check this with a manometer.
The continuity tester does not react.
5. Turn the adjusting screw 7 in a clockwise
direction until the continuity tester reacts
(desired lower switching vacuum
achieved).
Festo 0007NH– English
Fig. 7
Fig. 8
Fig. 9
Fig. 10
7
5
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