Device Description - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-464 2/4 AI RTD configurable
3

Device Description

The I/O module 750-464(2/4 AI RTD configurable) measures resistance at field
level or evaluates platinum or nickel resistance sensors.
The resistance values are converted into temperature values. A microprocessor
in the I/O module linearizes the measured resistance values and converts them
into a numeric value proportional to the temperature of the selected resistance
sensor.
The WAGO-I/O-CHECK commissioning tool can be used to configure the
required operating mode.
The I/O module has 2 or 4 input channels (configurable), providing a direct
connection to 2- or 3-wire resistance sensors.
The sensors are connected to the CAGE CLAMP
+AI 1/−AI 1 ... +AI 4/−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 operating status of the channels is indicated by a green status LED per
channel.
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.
The I/O module 750-464 (2/4 AI RTD configurable) 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.
Do not exceed maximum values via power contacts!
The maximum current that can flow through the power jumper contacts is 10 A.
The power jumper contacts can be damaged and the permissible operating
temperature can be exceeded by higher current values.
When configuring the system, do not exceed the permissible maximum current
value. If there is a higher power requirement, you must use an additional supply
module to provide the field voltage.
Use supply modules for ground (earth)!
The I/O module has no power jumper contacts for receiving and transmitting the
earth potential. Use a supply module when an earth potential is needed for the
subsequent I/O modules.
The field voltage and the system voltage are electrically isolated from each other.
Device Description
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connectors
Version 1.1.0
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Manual