mru SWG 100 biogas, User Manual

Page: 23 / 141

MRU GmbH SWG 100 User Manual
Page 23 of 141
5.4. I/O modules: Installation and setting
The IO module is for monitors and allows for remote operating of the analyser. An IO module has
the following features:
•
Transmit 4-20 mA output.
•
Trigger alarm outputs.
•
Reads one PT1000.
•
Reads one thermo couple.
•
Reads current inputs signals (for sensors with max. 20 mA output signals).
•
Reads voltage input signals (for sensors with max. 30 V output signals).
•
External control of the analyser.
Connection of the I/O module
The option IO module can be found at the hat-rail. The position is shown at the sketch below.
NOTE:
analog output current 4-20mA load resistor is max. 500Ohm
analog output does not require power supply alarm relays Out1 and Out2 contacts
▪
open contact in case of alarm or power failure
▪
closed contact for normal operation
Cable gland (M16):
For cables with
Ø 3,5-10 mm.
Signal cable
for I/O modul
RS
-485
4 3 2 1 4 3 2 1
-
+
- +
-
+ - +
In +/- 30V
In 20mA
Out 1
Out 2
Out 3
Out 4
Out 1
Out 2
2
0
m
A
Ou
tpu
t
+
Ala
rm
+
+
+
-
-
-
-
0V
12V
P
T1
0
0
0
TH-
TH+
Te
mp
e
ra
tu
re
in
pu
t