Dyna-Flo Control Valve Services Ltd.
Phone: 780 • 469 • 4000 | Toll Free: 1 • 866 • 396 • 2356 | www.dynafl o.com
P-PS2Q0619A
21
SIEMENS OVERVIEW
FOR FACTORY MOUNTED PS2’S
The Siemens Digital Positioner is extremely easy to use and confi gure with onboard
programming and a display window. The positioner is HART protocol standard. Can
be purchased with Profi bus PA or Foundation Fieldbus communication protocols.
Display Window
1 The display window (Figure 10) has two lines:
• The top line is the % open or closed.
• The bottom line tells you if the unit is in manual or automatic mode
(AUT or MAN).
• The bottom line also displays the input control % of the 4-20 mA
supply.
Operation Keys
When the cover is removed, there are three buttons on the front of the Siemens
PS2 Positioner that provide all the tools needed to set up the positioner (Figure 10).
The Class I Zone I Explosion Proof version has the buttons under an access door
that needs to be unscrewed and opened. It is located under the display window.
2 ‘HAND’ Key
3 ‘-’ Key
4 ‘+’ Key
There are four operation modes onboard the Siemens PS2
• Automatic
• Manual
• Confi guration (sub-routine of manual operation)
• Diagnostic
Automatic Mode
If the Siemens PS2 Positioner is mounted on a valve and is calibrated from the
factory, power up the device by connecting the positive lead to of mA source the
#3 terminal and negative lead to the #8 on the terminal strip. Once connected,
the PS2 Positioner will start up in the Automatic Mode.
Figure 10 Display Window
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