red lion IAMS0002 - System Block Diagram; Internal Device Architecture

LP1109 21
BLOCK DIAGRAM
50.0
VALVE 5
l / min
I+ 10 V 1 V
PGM
21
MUX
A / D
EEPROM
D / A
41 42 43 44
21
22
23 24
PTC
CJC
V
loop
CPU
Safety
20 Ω
50 Ω
500 Ω
11
13
14
12
0.2 mA
mA
mA
V
V
31 33
+
-
+
-
+
-
23
4
Potentiometer
2-wire transmitter
Voltage
Current
RTD og lin.R,
connection,
wires
Supply Supply 21.6...253 VAC or 19.2...300 VDC
Gnd.
I + V
Out.
I
Out.
V
Out.
TC
Relay 2 Relay 2 Relay 1 Relay 1
Green
Red
Yellow Yellow