Description - WAGO 750-462 Series Manual

2.1.1.3 Description

The 750-462 analog input module and its 750-462/xxx-xxx variations allow
thermocouples to be measured in the field. It can also be used to measure
voltages (mV).
Depending on the operating mode, the voltage value is converted to a
temperature or directly send out by the module. A microprocessor within the
module is used for converting and linearizing the measured voltage value into
a numeric value proportional to the temperature of the selected thermocouple.
The operating mode of the 750-462 basic module described in this manual is
for a type K thermocouple.
The analog module has two input channels allowing the direct connection of
two thermocouples. For example, two thermocouples can be connected either
to +TC1 and -TC1 or to +TC2 and -TC2.
The shield (screen) is directly connected to the DIN rail. A capacitive
connection is made automatically when snapped onto the DIN rail.
An optocoupler is used for electrical isolation between the bus and the field
side.
The operational readiness and trouble-free internal data bus communication of
the channels are indicated via a green function LED. Overrange or underflow
of the measuring range is indicated via a red error LED.
Any configuration of the input modules is possible when designing the
fieldbus node. Grouping of module types is not necessary.
Attention
This module has no power contacts. For field supply to downstream I/O
modules, a supply module will be needed.
The analog input module 750-462 and its variations can be used with all
couplers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy
types 750-320, -323, -324 and -327).
WAGO-I/O-SYSTEM 750
I/O Modules
750-462 (/xxx-xxx) [2 AI Thermocouple] • 9
Description