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Weh TV17 Betriebsanleitung Seite 25

Schaltventil zum einbau in gasetechnische anlagen
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Connecting electrical output signal indicator with connector
Please note: Subsequent mentions of descriptions and position numbers refer to
Chapter 3. Product overview / product description on page 10.
Î
Make sure that the pneumatic actuation (Pos. 2) is in the initial position before screw-
ing in the accessories.
Please note: The initial position of the valve is reached when no pilot pressure is
applied to the valve. As a result, the pneumatic actuation is not actuated.
Î
Loosen the lock nut (Pos. 14) and unscrew the proximity switch (Pos. 13).
Î
Screw the locking nut (Pos. 12) with the actuation pin (Pos. 11) into the measuring
port 'MA2'.
Tightening torque 30 Nm +10% (M28x1.5)
Î
Apply pilot pressure to the pneumatic actuation (Pos. 2).
Î
Carefully screw the proximity switch (Pos. 13) into the locking nut (Pos. 12) until the
sensor slightly touches the inside.
Attention: Do not screw the proximity switch in tightly to the stop. Doing so may
damage the proximity switch.
Î
Connect the connector to the proximity switch (Pos. 13) and ensure that the voltage
supply is guaranteed.
Note: Observe the pin assignment of the proximity switch on Page 14.
Î
Slowly unscrew the proximity switch (Pos. 13) from the locking nut (Pos. 12) until
the LED turns off.
Î
Screw the proximity switch (Pos. 13) into the locking nut (Pos. 12) by half a turn.
Note: The LED of the proximity switch must light up afterwards. If the LED doesn't
lights up, start mounting the proximity switch (Pos. 13) from the beginning.
Î
Tighten the lock nut (Pos. 14). Tightening torque 6 Nm +10% (M8x1)
Î
Release the pilot pressure from the pneumatic actuation (Pos. 2).
Î
Check the electrical output signal indicator for correct functioning:
- Apply pilot pressure to the pneumatic actuation (Pos. 2)
 the LED on the proximity switch (Pos. 13) lights up
- Release the pilot pressure from the pneumatic actuation (Pos. 2)
 the LED on the proximity switch (Pos. 13) turns off
Note: If the LED always lights up or does not light up at all, the output signal
indicator including proximity switch must be unscrewed and screwed in again as
described above.
Operating instructions
MD-10014-L51-R1.5.0-03
AE
Page 25

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