
Connection
6.1 Electrical connection
SIPART PS2 with and without HART communications
Operating Instructions, 09/2007, A5E00074631-07
69
Two-wire mode
Note
Never connect the current input (terminals 6 and 7) to a power source; the positioner will
probably be destroyed in that case.
Always use a current source with a maximum output current of I = 20 mA.
To maintain auxiliary power, the input current must be I
w
= 3.6 mA.
Electromagnetic compatibility
The plastic enclosure is metallized from inside to increase the electromagnetic compatibility
(EMC) with respect to high-frequency radiation. The shield is connected to the threaded
bush shown in the following picture such that it is electrically conductive.
Note that this protection is effective only if you connect at least one of these bushes to the
earthed control valves through electrically conductive (bare) attachments.
Figure 6-1 Base plate
Shield
See also
Installing optional modules in the standard and intrinsically safe version (Page 50)
Test report (extract) (Page 225)
Comentarios a estos manuales