Siemens SIPART PS2 FF

Functional safety for SIPART PS2 FF
A5E00489774-02, 10/2013
31
①
Input: Supply air
⑦
Restrictor Y1
②
Output: Actuating pressure Y1
⑧
Restrictor Y2
1)
③
Display
⑨
Friction clutch adjustment wheel
④
Output: Actuating pressure Y2
1)
⑩
Connecting terminals of option modules
⑤
Buttons
⑪
Connecting terminals of basic device
⑥
Transmission ratio selector
2)
⑫
Safety catch
1)
for double-acting actuators
2)
only possible when positioner is open
Figure A-2 View of positioner in flameproof enclosure