Device Description - WAGO 750-486/040-000 Manual

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Device Description

3 Device Description
The I/O module 750-486/040-000 (4AI 0/4-20mA NE43 Ex i XTR) measures
currents with standardized values of 0 ... 20 mA, 4 ... 20 mA and 3.6 ... 21 mA
(Namur NE43) from the field range. Up to 4 currents can be measured.
This I/O module connects to 2- and 3-wire sensors. 2-wire sensors are connected
via U and AI and in 3-wire technic via U
V
The sensors are basically supplied from the I/O module's field-side power supply
The I/O module has 4 input channels for field signals. The sensors are connected
to the CAGE CLAMP
The intrinsically safe supply of the transducer is done with a noninherently short-
circuit proof transmitter supply via the connections U
The channels have a common reference potential and a shield connection.
The shield connection is fed directly to the carrier rail and contact is made
automatically by snapping the module onto the rail.
The assignment of the connections is described in the "Connectors" section.
Connection examples are shown in section "Connect Devices" > ... >
"Connection Example(s)".
The Output signal is electrically isolated and will be transmitted with a resolution
of 12 bits.
The field voltage and the system voltage are electrically isolated from each other.
The operational readiness and the trouble-free local bus communication of the
channels are indicated via a green function LED.
A red error LED per channel indicates a wire break, a short circuit or that the
signal is outside the measuring range.
The meaning of the LEDs is described in the "Display Elements" section.
Power to the internal electronics is supplied via both the internal data bus and the
field supply.
The I/O module 750-486/040-000 (4AI 0/4-20mA NE43 Ex i XTR) 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.
Ex i XTR I/O modules shall only be supplied via "Power Supply 24 VDC
Diagn for Ex I XTR Modules"
Ex i XTR I/O modules shall only be operated with a "Power Supply 24 VDC
Diagn for Ex I XTR Modules" 750-606/040-000.
Manual
Version 1.0.0
750-486/040-000 4AI 0/4-20mA NE43 Ex i XTR
, AI and 0 V.
V
®
connectors AI 1 to AI 4.
WAGO-I/O-SYSTEM 750 XTR
1 or U 4.
V V