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4 Wiring
"
Quick wiring guide
58
4
Wiring
Caution!
Before wiring, please compare the supply voltage with the information specified on the nameplate.
If safe operation is no longer possible (e.g. visible damage) please take the device out of service and
secure it against unintentional start-up.
4.1
Quick wiring guide
The following connections can be found below the device's control console:
Fig. 4:
Electrical connections of the device
A = RS 232 digital interface connection socket RS232
B = Signal cable connection socket
4.1.1
Signal cable connection (→ Fig. 4
Digital in (DI)
>20 ms
+
-
Outputs
Only low voltage!
<28 V
max. current when using
ext. voltage
Imax=100 mA
Analogue input
0 to 20 mA
4 to 20 mA
int. Shunt: 50 Ohm
Fig. 5:
Pin assignment and wiring diagram for the signal cable
The following signals can be connected to the signal cable:
• Input signals
– 2 digital signals >20 ms
– 1 analog signal 0/4...20 mA
• Output signals
– 2 digital signals
– (All explosion protection data are given in a separate documentation which is available upon
request (see "Documentation"→ Page 90).
green
(4)
Input 1 +
(5)
yellow
Input 1 Gnd
+
(6)
Input 2 +
grey
-
(7)
pink
Input 2 Gnd
(8)
blue
Output 1 +
(9)
red
Output 1 -
+
R
l
(10)
black
Output 2 +
-
(11)
violet
Output 2 -
(12)
Analogue +
grey/pink
+
(13)
red/blue
Analogue -
-
Liquiport 2000 Ex
item B)
,
Liquiport 2000 EX
(5)
(4)
(3)
(14)
(13)
Endress+Hauser
(6) (7)
(8)
(1)
(9)
(2)
(10)
(11)
(12)
(1 = n.c. )
(2 = n.c. )
(3 = n.c. )
(14 = n.c. )
(
= n.c. )
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