3 separator with ex applications, 4 wiring plan, Connection on the passive input of the ea card – VEGA VEGALOG 571 EA User Manual
Page 13
5.3 Separator with Ex applications
In Ex applications, an additional separator must be used. The
following types can be used:
l
VEGATRENN 149A Ex
- requires additional supply voltage (20 … 253 V)
- particularly suitable for long cable lengths
-
Connection on the passive input of the EA card
l
KFD0-CS-Ex1.51P
- no additional supply voltage necessary (loop-powered)
- suitable for short cable lengths with low voltage loss
-
Connection on the active input of the EA card
Take note of the connection instructions in the respective
operating instructions manual.
5.4 Wiring plan
Input
+
+
+
-
-
+
+
-
+
+
-
+
+
-
+
+
-
+
+
-
+
+
-
+
+
-
+
+
-
+
+
-
4
6
5
2
3
9
8
10
1
7
2
3
4
1
L (+)
N (-)
2
6
12
20
24
22
10
16
18
30
28
32
d b
z
14
26
8
4
d b
z
+
-
d b
z
Fig. 3: VEGALOG 571 EA
1)
1
Voltage supply for VEGALOG 571 EA
2
Connection sensor 1 … 10
3
Detail, connection without sensor supply (passive input)
4
Detail, connection with sensor supply (active input)
1)
Broken lines = Connections on the EA card.
VEGALOG 571 EA - Input card analogue
13
Connecting to voltage supply
31948
-EN
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