5
.
2
C
onnection steps
T
ip
:
B
efore the actual setup
,
each
HART
sensors must be
assigned an address
(
see chapter
"
S
etup
"
).
W
hen assigning
an address
,
only one sensor should be connected to
VEGASCAN
693
.
D
epending on the installation location of the
sensors
,
it can be advantageous to carry out this addressing
before installing and connecting the sensors
.
T
his can be
conveniently carried out e
.
g
.
in the workshop
.
Y
ou just need a
24
V
olt power supply as well as an indicating and adjustment
module
PLICSCOM
or the adjustment software
PACT
ware
™
with
VEGACONNECT
.
F
or electrical connection
,
proceed as follows
:
1
S
nap socket without
VEGASCAN
693
onto the carrier rail
2
C
onnect sensor cable to terminal
1
/
2
(
active input
)
or
3
/
4
(
passive input
),
provide a screening
3
W
hen using several sockets
,
loop the power supply by
means of bridges
4
C
onnect power supply
(
switched o
ff
)
to terminal
17
and
18
5
I
f necessary
,
connect relays or other outputs
6
I
nsert
VEGASCAN
693
into the plug
-
in socket and screw it
down tightly
T
he electrical connection is
fi
nished
.
B
efore setting up
E
x versions
,
make sure the
E
x separating
chamber is plugged onto the left side of the housing
(
above the
sensor terminals
).
T
he pins for type and
E
x coding must also
be inserted correctly
.
I
nformation
:
l
O
n the active input
(
terminals
1
/
2
),
VEGASCAN
693
provides the power supply for the connected sensors
.
P
ower supply and measured value transmission are
carried out via the same two
-
wire cable
.
T
his operating
mode is intended for sensors without separate power
supply
(
sensors in two
-
wire version
).
l
O
n the passive input
(
terminals
3
/
4
),
the sensors are not
powered
,
only the measured value is transmitted
.
T
his
input is for connection of transmitters with their own
,
VEGASCAN
693
-
15
-
channel
HART
signal conditioning instrument
13
E
lectrical connection
29252
-
EN
-
060513
