WAGO-I/O-SYSTEM 750
Device Description
13
753-466 2 AI 4-20 mA S.E.
Manual
Version 1.5.0
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3
Device Description
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The Analog Input Module 753-466 (2 AI 4-20 mA S.E.) processes analog signals
with the norm value of 4 mA ... 20 mA.
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Dabei
Two- or three-wire transducers without power supply (e.g., adjustable resistors,
pressure, flow and level meters) can be connected directly.
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The transducers are directly supplied from the I/O module.
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Two-wire transducers are supplied via 24 V terminals and 3-wire transducers via
24 V and 0 V terminals.
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The I/O module has 2 input channels for fieldside signals. The sensors may be
received via the CAGE CLAMP
®
connections AI 1 or AI 2.
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The channels have a common reference potential and a shield connection.
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The shield connection is fed directly to the carrier rail and contact is made
automatically by snapping the module onto the rail.
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The assignment of the connections is described in the “Connectors” section.
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Connection examples are shown in section “Connect Devices” > … >
“Connection Example(s)”.
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The input signal is electrically isolated and is transmitted with a resolution of
12 bits.
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The operational readiness and the trouble-free internal data bus communication of
the channels are indicated via a green function LED.
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A red fault LED per channel indicates a wire break or that the signal is outside the
measuring range.
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The I/O module 753-466 (2 AI 4-20 mA S.E.) receives the 24 V voltage supply
for the field level from an upstream I/O module or from the fieldbus
coupler/controller via blade-formed power jumper contacts. It then provides these
potentials to subsequent I/O modules via spring-formed power jumper contacts.
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Do not exceed maximum current via power jumper contacts!
The maximum current to flow through the power jumper contacts is 10 A.
Greater currents can damage the contacts.
When configuring your system, ensure that this current is not exceeded.
If exceeded, insert an additional supply module.
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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.
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