Connection Steps - Vega VEGASCAN 693 Operating Instructions Manual

VEGASCAN 693 - 15-channel HART signal conditioning instrument

5.2 Connection steps

Tip:
Before the actual setup, each HART sensors must be
assigned an address (see chapter "Setup"). When assigning
an address, only one sensor should be connected to
VEGASCAN 693. Depending on the installation location of the
sensors, it can be advantageous to carry out this addressing
before installing and connecting the sensors. This can be
conveniently carried out e.g. in the workshop. You just need a
24 Volt power supply as well as an indicating and adjustment
module PLICSCOM or the adjustment software PACTware™
with VEGACONNECT.
For electrical connection, proceed as follows:
1 Snap socket without VEGASCAN 693 onto the carrier rail
2 Connect sensor cable to terminal 1/2 (active input) or 3/4
(passive input), provide a screening
3 When using several sockets, loop the power supply by
means of bridges
4 Connect power supply (switched off) to terminal 17 and 18
5 If necessary, connect relays or other outputs
6 Insert VEGASCAN 693 into the plug-in socket and screw it
down tightly
The electrical connection is finished.
Before setting up Ex versions, make sure the Ex separating
chamber is plugged onto the left side of the housing (above the
sensor terminals). The pins for type and Ex coding must also
be inserted correctly.
Information:
On the active input (terminals 1/2), VEGASCAN 693
l
provides the power supply for the connected sensors.
Power supply and measured value transmission are
carried out via the same two-wire cable. This operating
mode is intended for sensors without separate power
supply (sensors in two-wire version).
On the passive input (terminals 3/4), the sensors are not
l
powered, only the measured value is transmitted. This
input is for connection of transmitters with their own,
Electrical connection
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