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System Description
WAGO-I/O-SYSTEM 750
750-880, 750-880/025-000 ETHERNET Programmable Fieldbus Controller
Manual
Version 1.0.1
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3.6.3
Field Supply
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3.6.3.1
Connection
Sensors and actuators can be directly connected to the relevant channel of the bus
module in 1/4 conductor connection technology. The bus module supplies power
to the sensors and actuators. The input and output drivers of some bus modules
require the field side supply voltage.
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The coupler/controller provides field side power (DC 24 V). In this case it is a
passive power supply without protection equipment. Power supply modules are
available for other potentials, e. g. AC 230 V.
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Likewise, with the aid of the power supply modules, various potentials can be set
up. The connections are linked in pairs with a power contact.
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Figure 6: Field supply (sensor/actuator) for standard couplers/controllers and extended ECO
couplers
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The supply voltage for the field side is automatically passed to the next module
via the power jumper contacts when assembling the bus modules.
The current load of the power contacts must not exceed 10 A on a continual basis.
The current load capacity between two connection terminals is identical to the
load capacity of the connection wires.
By inserting an additional power supply module, the field supply via the power
contacts is disrupted. From there a new power supply occurs which may also
contain a new voltage potential.
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