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1MRS750527-MUM

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Technical Reference Manual, General

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When a current transducer is connected to the RTD/analogue input, the SHUNT and

IN+ terminals are linked together as are the GND and IN- terminals. The incoming

current signal is connected to the IN+ terminal and the outgoing current signal to the

IN- terminal.

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When a voltage transducer is connected to the RTD/analogue input, the GND and

IN- terminals are linked together. The incoming voltage signal is connected to the

IN+ terminal and the return voltage signal lead to the IN- terminal.

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*) The GND terminals are galvanically isolated from the supply and enclosure of the

feeder terminal, but they are all connected to each other, i.e. they share the same

potential. When several inputs are connected to single-ended signal sources that

share a common ground, ground loops result if the connection GND <-> IN- is done

on every input. In this situation, the connection GND <-> IN- is done on only one of

the concerned RTD/analogue inputs.

SHUNT

IN -

GND

IN +

DIFF

currtran.CNV

Transducer

amplifier

Sensor