Austdac SILBUS-TX4A(G), User Manual

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4
4
C
C
H
H
A
A
N
N
N
N
E
E
L
L
A
A
N
N
A
A
L
L
O
O
G
G
U
U
E
E
T
T
R
R
A
A
N
N
S
S
M
M
I
I
T
T
T
T
E
E
R
R
2
2
5
5
O
O
F
F
3
3
0
0
1
1
2
2
0
0
-
-
1
1
8
8
8
8
-
-
1
1
2
2
T T Y Y P P E E S S I I L L B B U U S S - - T T X X 4 4 A A ( ( G G ) ) U U S S E E R R ' ' S S M M A A N N U U A A L L I I s s s s u u e e : : 0 0 5 5
7 TERMINATIONS AND CONNECTIONS
All connections to the four channel analogue transmitter are via cage-clamp terminals
around the perimeter and near the front of the DIN rail mounting enclosure, these terminals
can accommodate up to 4mm
2
conductors. There are 16 possible connections to the
transmitter; these are shown in the following tables and diagrams:
1
2
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
SIG
C O M
+VE
-VE
CH 1
CH 2
CH 3
CH 4
H I
L O
I to V
H I
L O
I to V
H I
L O
I to V
H I
L O
I to V
4 CHANNEL ANALOGUE
TRANSMITTER TYPE SILBUS-TX4A
1
2
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
SIG
C O M
+VE
-VE
CH 1
CH 2
CH 3
CH 4
H I
L O
I to V
H I
L O
I to V
H I
L O
I to V
H I
L O
I to V
4 CHANNEL ANALOGUE
TRANSMITTER TYPE SILBUS-TX4A
-
+
0 to 2.0V
0.4 to 2.0V
SIGNAL
O R
-VS1
+VS1
0 to 20mA
4 to 20mA
SIGNAL
O R
+VS1
-VS1
SIGNAL
COMMON
SILBUS NETWORK
Figure 2 SIBUS-TX4A Connection diagram
7.1 ANALOGUE INPUT PORTS
Each analogue input is provided with three terminals for the connection of field wiring.
Each input can accept a voltage or current type signal depending on the way the field
wiring is terminated at the transmitter. For voltage type input signals the
‘HI’ and ‘LO’
input terminals are used as shown for channel one in figure 1 above. For current type
signals the ‘HI’ and ‘LO’ input terminals are also used with an added link between the ‘HI’
and ‘I to V’ terminals as shown for channel four in figure 1 above. By linking the ‘HI’ and ‘I
to V’ terminals a 100Ω current to voltage converting resistor is connected across the input
of the transmitter.
ANALOGUE INPUT TERMINATIONS
INPUT TERM # LABEL DESCRIPTION
CH1
16 HI CHANNEL 1 HI or +VE INPUT
17 I to V CHANNEL 1 CURRENT TO VOLTAGE CONV RESISTOR INPUT
18 LO CHANNEL 1 LO or
–VE INPUT
CH2
19 HI CHANNEL 2 HI or +VE INPUT
20 I to V CHANNEL 2 CURRENT TO VOLTAGE CONV RESISTOR INPUT
21 LO CHANNEL 2 LO or
–VE INPUT
CH3
22 HI CHANNEL 3 HI or +VE INPUT
23 I to V CHANNEL 3 CURRENT TO VOLTAGE CONV RESISTOR INPUT
24 LO CHANNEL 3 LO or
–VE INPUT
CH4
25 HI CHANNEL 4 HI or +VE INPUT
26 I to V CHANNEL 4 CURRENT TO VOLTAGE CONV RESISTOR INPUT
27 LO CHANNEL 4 LO or
–VE INPUT
Table 3 Analogue input termination details