Vega VEGABAR 81 Modbus and Levelmaster protocol - Quick Bedienungsanleitung PDF herunterladen (Seite 10)

4 Connecting to power supply and bus system

VEGABAR 81 • Modbus and Levelmaster protocol

46304-EN-131125

6. Check the hold of the wires in the terminals by lightly pulling on

them

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nished.

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

Fig. 4: Position of connection compartment (Modbus electronics) and electron-

ics compartment (sensor electronics)

1 Terminalcompartment

2 Electronicscompartment

power supply

MODBUS

IS GND

USB

4 3

1345

2off

( )

(

)

(-)

Fig.5:Terminalcompartment

1 USB interface

2 Slideswitchforintegratedterminationresistor(120Ω)

3 Voltage supply

4 Modbus signal

Overview

Terminal compartment

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 19 20

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