5 electrical connections, Basic information, Figure 1-2. wiring diagram – Rice Lake Signal Conditioning Transmitter/Indicators User Manual
Page 10: 6sct weight transmitter operator’s manual
6
SCT Weight Transmitter Operator’s Manual
1.5
Electrical Connections
Basic Information
• It is recommended that the negative side of the power supply be grounded.
• It is possible to power up to eight 350 ohm load cells or sixteen 700 ohm load cells.
• For 4-wire load cells, jumper between EX- and REF- and between EX+ and REF+.
• Connect terminal “0 VDC” to the RS-485 common when interfacing to A/C powered equipment so that there is
an opto-isolated RS-485 connection.
• In case of an RS-485 network with several devices it is recommended to activate the 120 ohm termination
resistance on the two devices located at the ends of the network, see Section 2.9.1 “RS-485 Serial
Figure 1-2. Wiring Diagram
3 outputs: configurable setpoints or remote output management via protocol.
2 inputs (Default: SEMI-AUTOMATIC ZERO input 1; NET/GROSS input 2) (see Section 2.10 “Outputs And
Inputs Configuration” on page 27).
+ EX
CI
TATI
O
N
- EXC
IT
A
TIO
N
4-wire load cell
connection
SH
IE
LD
+ SI
GN
AL
- SIGNAL
1
2
3
4
5
6
RS485
Relay
Outputs
115Vac / 150mA
12-24Vdc
- S
IGNA
L
+
EXCIT
AT
ION
SH
IELD
- EX
CI
TATI
O
N
- SENS
E
+ SE
N
S
E
Inputs
5-24Vdc
+ SI
GN
AL
+
-
Current output: max load 300 ohm
Voltage output: min. load 10 kohm
6-wire load cell
connection
Analog Output shown
See below for
Devicenet, Profibus
Ethernet/IP or Modbus/TCP
RS485 T
ermination
PO
WER
EX
-
REF
-
1
EX
+
2
REF
+
3
SIG
+
6
IN1
7
IN2
8
IN COM
9
mA
10
V
11
mA-V COM
12
4
SIG
-
5
OUT1
OUT2
OUT3
OUT COM
+ RS485
- RS485
+ 12-24
0 VDC
13
14
15
18
19
20
16
17
SCT
20-AN
DeviceNet
CAN V
-
10
11
12
13
14
CAN L
CAN H
CAN V+
CAN SHLD
CAN T
ermination
EX
-
REF
-
1
EX
+
2
REF
+
3
SIG
+
6
IN1
7
IN2
8
IN COM
9
4
SIG
-
5
Profibus DP
EX
-
REF
-
1
EX
+
2
REF
+
3
SIG
+
6
IN1
7
IN2
8
IN COM
9
4
SIG
-
5
Profibus T
ermination
Ethernet/IP
EX
-
REF
-
1
EX
+
2
REF
+
3
SIG
+
6
IN1
7
IN2
8
IN COM
9
4
SIG
-
5
EtherNet/IP
RJ-45
Profibus DP
Socket DB-9
Modbus/TCP
EX
-
REF
-
1
EX
+
2
REF
+
3
SIG
+
6
IN1
7
IN2
8
IN COM
9
4
SIG
-
5
Modbus/TCP
RJ-45