18 Device Description
WAGO I/O System 750 XTR
750-471/040-000 4AI U/I Diff Galv XTR
Manual
Version 1.0.2
3
Device Description
The I/O Module 750-471/040-000 (4AI U/I Diff Galv XTR) processes differential
current and voltage signals from the field:
•
0 … 10 V
•
±10 V
•
±200 mV
•
0 … 20 mA
•
3,6 … 21 mA NE43
•
4 … 20 mA
•
±20 mA
The I/O module has four electrically isolated input channels for differential
signals. The sensors are connected to the CAGE CLAMP
®
terAI 1 and
−
AI 1, +AI 2 and
−
AI 2, +AI 3 and
−
AI 3, +AI 4 and
−
AI 4.
The assignment of the connections is described in the “Connectors” section.
Connection examples are shown in section “Connect Devices” > … >
“Connection Example(s)”.
The input signal is electrically isolated and transmitted with a resolution of 16 bits.
The operational readiness and the trouble-free local bus communication of the
channels are indicated via a green function LED.
A red fault LED per channel indicates that the signal is outside the measuring
range and depending on the type of signal additionally an overload or a wire
break.
Details about the individual signal types are described in the “Process Image” >
“Process Data” section.
The meaning of the LEDs is described in the “Display Elements” section.
With consideration of the power jumper contacts, the individual modules can be
arranged in any combination when configuring the fieldbus node.
An arrangement in groups within the group of potentials is not necessary.
Power to the internal electronics is supplied via internal data bus.
