5.3
Electrical Design of the ET 200iSP
Electrical isolation
In the ET 200iSP, isolation exists between:
● The load circuits/process and all other circuitry of the ET 200iSP
● The PROFIBUS DP interface in the interface module and all other circuit components
● Power supply (auxiliary power) and all output voltages
The following schematic shows the various potentials with the ET 200iSP. The figure shows
only the most important components:
// 10 3$
,0
3RZHUVXSSO\36
(OHFWURQLFPRGXOHV
3RWHQWLDORIDX[LOLDU\SRZHU
3RWHQWLDOVRI,2
3RWHQWLDORI(7L63
3RWHQWLDORI'3LQWHUIDFH
$X[LOLDU\SRZHU
56,6
LQWHUIDFH
%DFNSODQHEXV
(7L63
0RXQWLQJUDLO
3URFHVV
HOHFWURQLFV
3URFHVV
HOHFWURQLFV
3URFHVV
HOHFWURQLFV
7HUPLQDWLQJPRGXOH
Figure 5-3
Potentials with the ET 200iSP
Wiring
5.3 Electrical Design of the ET 200iSP
ET 200iSP
108
Operating Instructions, 11/2017, A5E00247483-07