WAGO-I/O-SYSTEM 750
Device Description
13
750-455 4AI 4-20mA S.E.
Manual
Version 1.2.0
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3
Device Description
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The Analog Input Module 750-455 (4AI 4-20mA S.E.) processes analog signals
with the norm value of 4 mA ... 20 mA.
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The module has 4 input channels. The signals of the field side may be received via
the CAGE CLAMP
®
connectors AI 1 and common (ground) or AI 2, AI 3, AI 4
and common (ground) each.
The common (ground) contacts of all 4 channels have 1 common 0 V ground
potential.
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The input signal is electrically isolated and is transmitted with a resolution of
12 bits.
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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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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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Power to the internal electronics is supplied via internal data bus.
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The I/O module receives the 24 V voltage supply and the 0 V potential for the
field level from an upstream I/O module or from the fieldbus coupler/controller
via the power jumper contacts used as blade contacts. These potentials are passed
through without being used galvanically isolated to subsequent I/O modules.
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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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The I/O module 750-455 can be used with all fieldbus couplers/controllers of the
WAGO-I/O-SYSTEM 750 (except for the economy types 750-320, -323, -324
and -327).
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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 “Connecting Devices” > … >
“Connection Example(s)”.
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