VEGA VEGALOG 571 EA - 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
-070307