Specifications
Specifications
Dimensions
Dimensions
Connector Pin Diagram
Electrical Connections
Basic Information
- It is recommended that the power supply negative pole be grounded.
- It is possible to supply up to 16 350 ohm load cells.
- For 4-wire load cells, make a jumper between EX- and REF- and between EX+ and REF+. Connect terminal “- SUPPLY” to the RS485 common of the connected instruments in the event that these receive alternating current input or that they have an optically isolated RS485.
- In case of an RS485 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.
Wiring Diagram
In case of difficulty connecting all the reference wires of the installed load cells, simply connect those of the load cell located at the average distance from the instrument. The reference wires not used must be individually isolated.
USE OF 4-WIRE LOAD CELLS: if all the load cells used are 4-wire, make a jumper between -EX (26) and -REF (22) and between +EX (25) and +REF (21).
Terminals Legend
INF4 Legend
1 | OUTPUT No. 1 |
2 | OUTPUT No. 2 |
3 | OUTPUT No. 3 |
4 | OUTPUT COMMON |
5 | INPUT No. 1 (+VDC min 5 V max 24 V) |
6 | INPUT No. 2 (+VDC min 5 V max 24 V) |
7 | INPUT COMMON (-VDC 0 V) |
8 | +SUPPLY (12/24 VDC) |
9 | -SUPPLY (12/24 VDC) RS485: SHIELD, GND |
10 | +ANALOG OUTPUT 0-20 or 4-20 mA |
11 | +ANALOG OUTPUT 0-10 V |
12 | -ANALOG OUTPUT COMMON |
15 | +LOAD CELL 1 SIGNAL |
16 | -LOAD CELL 1 SIGNAL |
17 | +LOAD CELLS 1 and 2 EXCITATION (+EX) |
18 | -LOAD CELLS 1 and 2 EXCITATION (-EX) LOAD CELLS SHIELD |
19 | +LOAD CELL 2 SIGNAL |
20 | -LOAD CELL 2 SIGNAL |
21 | +LOAD CELLS REF/SENSE |
22 | -LOAD CELLS REF/SENSE |
23 | +LOAD CELL 3 SIGNAL |
24 | -LOAD CELL 3 SIGNAL |
25 | +LOAD CELLS 3 and 4 EXCITATION (+EX) |
26 | -LOAD CELLS 3 and 4 EXCITATION (-EX) LOAD CELLS SHIELD |
27 | +LOAD CELL 4 SIGNAL |
28 | -LOAD CELL 4 SIGNAL |
29 | RS485: + |
30 | RS485:- |
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