Omron NX-EC0112 User Manual

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4 Installation and Wiring
NX-series Position Interface Units User’s Manual (W524)
4-2 Connecting the Power Supply and Ground Wires
4
4-2-4 NX-series Power Supply-related Units
This NX Unit provides additional NX Unit power supply.
This NX Unit is used when the total power consumption of the NX Units in the Slave Terminal exceeds
the NX Unit power supply capacity of the Communications Coupler Unit.
The NX Unit power supply provides power for the internal circuits in each NX Unit.
The I/O power supply for the Additional NX Unit Power Supply Unit is connected to the NX Unit on the
left through the NX bus connector.
This Unit supplies additional I/O power. It is used in the following two cases.
 Insufficient I/O Power Supply Capacity
• The Additional I/O Power Supply Unit is used when the total current consumption for the I/O power
supply exceeds the maximum I/O power supply current of the Communications Coupler Unit.
• The Additional I/O Power Supply Unit is also used when voltage drop in the I/O power supply
causes the voltage of the I/O power supply to go below the voltage specifications of the I/O cir-
cuits or connected external devices.
Additional NX Unit Power Supply Unit
Additional I/O Power Supply Unit
Communications Coupler Unit
NX Unit
Additional NX Unit
Power Supply Unit
Unit power
supply terminals
Internal power
supply circuit
NX Unit power supply
Internal power
supply circuit
NX Unit power supply
Unit power
supply
The power supply capacity of
the Communications Coupler
Unit is not sufficient for the fol-
lowing Units.
Communications
Coupler Unit
NX Unit
Additional I/O Power Supply Unit
I/O power
supply
I/O power
supply
When the I/O power supply becomes the following
states for the subsequent NX Units.
• When it exceeds the maximum I/O power supply
current
• When it goes below the voltage specifications of
the connected external devices

Omron NX-EC0112 Specifications

General

Brand	Omron
Model	NX-EC0112
Category	Controller
Language	English