Connecting Rtd/Ma Signals - ABB Remote I/O RIO600 Installation And Commissioning Manual

1MRS757488 H
5.2.5
RIO600
Installation and Commissioning Manual
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Connecting RTD/mA signals

Use a shielded cable for the connection of RTD/mA signals. Connect the shield of the
cable to the DIN rail through an earthing clamp, for example, Weidmuller Earthing
Clamp: 1252520000 (KLBUE 4-13.5 FM4).
Check that the proper power supply and LECM modules are mounted on the DIN rail.
The RTD4 module has two sets of connectors where each set accepts two RTD/mA
signals.
1. Fasten the input connector through the upper and lower screw terminals.
2. Connect the signals based on the type of configuration.
• For 2-wire RTD configuration, connect the RTD signals between - and +
terminals and short - and C terminals, else there will be an IRF.
RTD4
RTD1
RTD2
RTD3
RTD4
GUID-6B99373F-69D2-490B-8563-BB772E0018B1 V2 EN
Figure 19:
• For 3-wire RTD configuration, connect the three terminals of RTD sensor
between C, - and + terminals.
Binary output terminal Description
DO3 Isolated output pair 2
DO4
COM
X1
1C 1
1- 2
1+ 3
2C 4
2- 5
2+ 6
X2
3C 1
3- 2
3+ 3
4C 4
4- 5
4+ 6
Earth Clamp (mounted on DIN Rail)
2-wire RTD
Section 5
Installing
LED
DO3
DO4
Resistor sensor
Resistor sensor
Resistor sensor
Resistor sensor
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