VEGA VEGAWELL 72 4 … 20 mA_HART PT 100 - Manual (Page 19)

connected directly to the internal ground terminal. The ground
terminal outside on the housing must be connected to the
potential equalisation.
I f potential equalisation currents are expected, the connection
on the processing side must be made via a ceramic capacitor
(
e. g. 1 nF, 1500 V). The low frequency potential equalisation
currents are thus suppressed, but the protective effect against
high frequency interference signals remains.
T
ake note of the corresponding installation regulations for Ex
applications.
5 .2 Connection procedure
P
roceed as follows:
1 W ire the connection cable up to the connection compart-
ment. The bending radius must be at least 25 mm. 3)
2 C onnect the wire ends to the screw terminals according to
the wiring plan
P
roceed as follows:
1 S nap VEGABOX 02 onto the carrier rail or screw it to the
mounting plate
2 L
oosen the cover screws and remove the cover
3 S hift the cable throught the cable entry into VEGABOX 02
4 L oosen the screws with a screwdriver
5 I nsert the wire ends into the open terminals according to
the wiring plan
6 T
ighten the screws with a screwdriver
7 C heck the hold of the wires in the terminals by lightly
pulling on them
8 T
ighten the compression nut of the cable entry. The seal
ring must completely encircle the cable
9 C onnect the supply cable according to steps 3 to 8
10 S crew the housing cover on
T
he electrical connection is finished.
P roceed as follows:
1 U
nscrew the housing cover
3) T he connection cable is already preconfectioned. After shortening the ca-
ble, fasten the type plate with support again to the cable.
Select connec-
tion cable for Ex
applications
Direct connection
Connection via
VEGABOX 02
Via the housing
VEGAWELL 72 • 4 … 20 mA/HART PT 19
5 C onnecting to power supply
34360
-
EN
-080806