11
4 Connecting to power supply
VEGAPULS 69 • 4 … 20 mA/HART - four-wire
47255-EN-140801
7. Connect the screen to the internal ground terminal, connect the
outer ground terminal to potential equalisation in case of power
supply via low voltage
8. Connect the lead cable for power supply in the same way accord-
ing to the wiring plan, in addition connect the ground conductor to
the inner ground terminal when powered with mains voltage.
9. Tighten the compression nut of the cable glands. The seal ring
must completely encircle the cables
10. Screw the housing cover back on
The electrical connection is finished.
Information:
The terminal blocks are pluggable and can be removed from the
housing insert. To do this, lift the terminal block with a small screwdriv-
er and pull it out. When inserting the terminal block again, you should
hear it snap in.
4.2 Wiring plan, double chamber housing
The following illustrations apply to the non-Ex as well as to the Ex-d
version.
power supply
4...20mA
active
passive
commo
n
IS GN
D
5
1
/L
/N
PE
2
+
( )
(-)
6 7
8
Fig. 5: Connection compartment with double chamber housing with mains
voltage
Terminal
Function
Polarity
1
Voltage supply
+/L
2
Voltage supply
-/N
5
4 … 20 mA output (active)
+
6
4 … 20 mA output (passive)
+
7
Mass - output
-
8
Function ground with installa-
tion according to CSA
Connection compartment
with mains voltage
