Operating instructions

EB 8384-6 EN 9
Design and principle of operation
1 Control valve
2 Travel sensor
3 PD controller
4 A/D converter
5 Microcontroller
6 i/p converter
7 Air capacity booster
8 Pressure regulator
9 Flow regulator
10 Volume restriction
11* Inductive limit switch
12* Solenoid valve
13* Analog position transmitter or binary input
14 Software limit switches A1/A2
15 Fault alarm output A3
16 LCD
17* Solenoid valve control
18* Galvanic isolation
19 D/A converter
20 Communication interface
21 HART
®
modulation
22* Binary input BE
23 Pressure sensor for supply pressure p
s
24 Pressure sensor for signal pressure p
out
25* Forced venting
* Option
%
S
mm
%
mm
PD
FSK
w
x
Q
GG
Serial
Interface
16
13
22
15
A2
A3
BE
A1
11
2
4
21
20
19
5
3
12 25
6
7
23
8
10
1
14
14
w
x
y
24 V DC
9
17 18
x
1)
>12 V
&
24
Fig. 2 · Functional diagram
x
1)
depending
on version
> 3.8 mA
> 4.4 mA