2 connection procedure – VEGA VEGAWELL 72 4 … 20 mA User Manual

Page 19

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background image

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

P

ush the cable into VEGABOX 02 through the cable entry

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

2

I

nsert the connection cable through the cable entry into the

plastic housing

3

L

oosen the screws with a screwdriver

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

19

5 C

onnecting to power supply

27501

-

EN

-080806

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