airpower europe GmbH, Auf der Hohl 7, D-53547 Dattenberg,
www.airpower-gmbh.com
15
Hazardous Area zone 0, Zone 1 or Zone 2 non-hazardous areas
Fig.4-10 Electronic connection of the analog feedback output module
4.4.3 Connection of a
N
on-intrinsically safe position controller
4.4.3.1 Electrical input (Fig. 4-11)
Type:
2-wire power supply
Input signal:
4 ... 20 mA
Min. Working current: 3.8mA / DC
Input impedance: 455
Ω
@20mA (without HART) 575
Ω
@20mA (with HART)
Fig. 4-7 electric input connection
4.4.3.2 Electrical connection of the digital
output
(binary) (Fig.4-12)
Working voltage:12 … 35V DC
Output:
Digital output module (binary)
Output
Signal status "high" (Trigger)
≥2.1 mA
Signal status "low" (Trigger)
≤1.2 mA
11
2K
12
12~28V
_
_
+
+
Ana log fe ed ba c k m od ule
D C S
I,V
Sa fety b a rrier
1
3
2
4
+
-
digital input
p ositioner
4~20mA DC
H A R T
Commu-
nicator
Sig na l isola tor
D C S
A
E
