Manual

Preparing for Operation

3-20

Positioner SIPART PS2/SIPART PS2 PA

C79000-G7476-C150–01

3.5 Pneumatic connection

Warning

For safety reasons the pneumatic power must only be input after

installation when the positioner is switched to operating level P manual

mode with the electrical signal applied (state of supply, see Fig. 4-2).

☞

Note

Check the air quality! Industrial air, free of oil, solid content < 30 mm, dew

point under pressure 20 K below the lowest ambient temperature.

❑ If necessary connect the manometer block for inlet air pressure and

positioning pressure.

❑ Connection using inside thread G 1/4 DIN 45141:

inlet air 1.4 to 7 bar

Y1 positioning pressure 1 for single and double-acting actuators

Y2 positioning pressure 2 for double-acting actuators

E air outlet (remove silencer if necessary)

❑ Safety position in the event of electrical power failure

single acting: Y1 vented

double acting: Y1 max. positioning pressure

(inlet air pressure)

Y2 vented

❑ Connect positioning pressures Y1 and Y2 (only for double-acting

actuators) in accordance with the required safety position.

❑ Connect the inlet air to P