Omron PROFINET NX-PNC202, Руководство пользователя

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5 Designing the Power Supply System
NX-series PROFINET Coupler Unit User’s Manual (W623)
5-3 Designing the IO Pow
er Supply System
5
5-3-1 IO Power Supply M
ethod
5-3 Designing the IO Power Supply Sys-
tem
This section describes how to design the IO power supply to the Profinet IO Device Terminal.
There are the following two methods to supply the IO power supply to the Profinet IO Device Terminal
depending on the type and model of the NX Units.
Refer to the user’s manuals for individual NX Units or to the
NX-series Data Reference Manual
(Cat.
No. W525) for the power supply method for specific NX Units.
An example is shown below.
5-3-1 IO Power Supply Method
Supply method Description
Supply from the NX bus Power is supplied through the NX bus connectors by connecting an IO power supply to
the IO power supply terminals on the PROFINET Coupler Unit or Additional IO Power
Supply Units.
Supply from external
source
Power is supplied to the Units from an external source.
IO power is supplied by connecting an IO power supply to the terminal blocks on the
Units.
External
output
device
Terminal block
Supplied from external source.
I/O power supply (AC)
External
output
device
External
output
device
External
input
device
Terminal block
I/O power
supply
(DC)
I/O power supply
terminals
PROFINET
Coupler Unit
Supplied from the NX bus.
DC Input
Unit
Relay
Output
Unit
Relay
Output
Unit
Transistor
Output Unit
End Cover