Wiring Plan, Single Chamber Housing - Vega VEGAFLEX 83 Operating Instructions Manual

Wiring plan - Daisy-
Chain
VEGAFLEX 83 • Modbus and Levelmaster protocol
Information:
Solid cores as well as flexible cores with wire end sleeves are insert-
ed directly into the terminal openings. In case of flexible cores without
end sleeves, press the terminal from above with a small screwdriver,
the terminal opening is then free. When the screwdriver is released,
the terminal closes again.
You can find further information on the max. wire cross-section under
" Technical data - Electromechanical data".
7. Check the hold of the wires in the terminals by lightly pulling on
them
8. Connect the shielding to the internal ground terminal, connect the
external ground terminal to potential equalisation
9. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
10. Reinsert the display and adjustment module, if one was installed
11. Screw the housing lid back on
The electrical connection is finished.
5.3

Wiring plan, single chamber housing

Information:
With Modbus systems, several sensors can be connected in parallel.
With this so called "Daisy-Chain" the cables for the signal and voltage
supply are looped from sensor to sensor.
The last sensor in this "chain" must be provided with a bus termina-
tion. For this purpose there is a connectable terminating resistor on
the electronics module. Make sure that the slid switch (5) with all sen-
sors of the chain is set to "off". With the last sensor you have to set the
slide switch (5) to position "on".
Please also take note of the information in the annex " Basics Mod-
bus".
5 Connecting to power supply and bus system
21