Omron NX Series User Manual page 78

4 Installation and Wiring
<Block>
The following shows the Unit that supplies NX Unit power and its supplying range. For example, the
Slave Terminal in the following diagram is configured with two blocks: the Communications Coupler
Unit block and the Additional NX Unit Power Supply Unit block.
Unit power supply
terminals
Unit power
supply
The total Unit power supply capacity for these two blocks is the power supply capacity that the Slave
Terminal requires.
Precautions for Correct Use
Select a Unit power supply with sufficient capacity by considering the inrush current when the
power is turned ON. Sometimes, the Unit power supply may not be turned ON caused by
inrush current when the power is turned ON.
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Communications Coupler
Unit block
NX Unit connected to
the Communications
Commu-
Coupler Unit
nications
Coupler
Unit
NX Unit power supply
Internal power
supply circuit
Additional NX Unit Power
Supply Unit block
NX Unit connected to the Additional
NX Unit Power Supply Unit
NX Unit power supply
Unit power supply
terminals
Additional NX Unit Power Supply Unit
NX-series System Unit User's Manual (W523)
End cover