Cashco Siemens PS2 I/P - Manual (Page 50)

Preparing for Operation
50
SIPART PS2 Manual
A5E00074631-01
3.4.1.2 Connection variant: intrinsically safe
.
NOTE
Only certified intrinsically safe circuits may be connected as power
supply, control and signal circuits.
+
J
4 to 20 mA
Positioner
Digital inputs 1
6DR5010-xExxx
6DR5020-xExxx
6DR5011-xExxx
6
7
8
9
10
+3 V
A
E
Non-hazardous
area
Intrinsically
safe power
source
EEx
Hazardous area zone 1 or zone 2
Figure 3-13 Two--wire connection standard controller 6DR50xx-xExxx (power supply from signal current)
.
NOTE
The current i
y
≥ must be 3.6 mA to maintain the power supply.