Samson 3730-3 Safety Manual page 9

20 20
21 21
11 w
12
24 V DC
81
82
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 contact
12* Solenoid valve
Fig. 1: Functional diagram of the positioner
SH 8384-3 EN
Serial Serial
16 16
Interface Interface
FSK FSK
4
4
5 5
17 17 18 18
12
6
8 8
7 7
22 22
13 13
mm mm m m
% %
15 15
19 19
14 14
14 14
w
PD PD
x
3 3
9 9
y
10 10
Q Q
13* Analog position transmitter
14 Software limit contact, alarm 1/2
15 Fault alarm output, alarm 3
16 Display
17* Actuation of solenoid valve
18* Electrical insulation
19 D/A converter
20 Communication interface
21 HART connection
®
Binary input BE*
22
* Options
Safety-related functions
BE BE
A3
A3
A2 A2
A1 A1
2 2
11
G G G
1
x
31
32
31
32
83
84
51
52
41
42
9