VEGA VEGATRENN 547 V Ex - Manual (Page 10)

10 VEGATRENN 547 V Ex
3.3 Wiring plan
2
6
12
20
28
24
22
10
16
18
30
32
d b z
1 +
2 –
3 +
4 –
1 +
2 –
L (+)
N (–)
26
–
14
+
8
4
3 +
4 –
Power
supply
VBUS-
connection
of signal
conditioning
instrument
VBUS-
sensor 2
VBUS-
sensor 2
3.2 Connection instructions
Not intrinsically safe input
The not intrinsically safe input of the Ex-
separator is connected via a standard two-
wire line with a signal conditioning instrument.
If electromagnetic interferences have to be
expected, screened cable should be used.
The screen must only be earthed at one end
of the signal conditioning instrument.
Intrinsically safe output
The wiring of the intrinsically safe outputs of
the Ex-separator with the sensors must meet
with the valid installation regulations. E.g. the
DIN-regulations prescribe that the connection
lines between Ex-separator and sensors must
be marked on the entire length. For coverings
light blue must be used as colour.
If electromagnetic interferences must be
expected, screened cable must be used. The
screen must only be earthed at one sensor.
Electrical connection
VBUS-
sensor 1
VBUS-
sensor 1