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5 Designing the Power Supply System
5 - 4
NX-series EtherCAT Coupler Unit User’s Manual (W519)
Additional I/O Power Sup-
ply Unit
This NX Unit provides additional I/O power supply.
Use this NX Unit in the following cases.
(a) When the I/O power supply capacity is insufficient
• When the total current consumption for the I/O power supply exceeds the max-
imum I/O power supply current of the EtherCAT Coupler Unit
• When a 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 circuits or con-
nected external devices
(b) Separating the I/O power supply
• When connected external devices have different I/O power supply voltages
• When separating the power supply systems
The NX Unit power supply of the Additional I/O Power Supply Unit is connected to
the NX Unit on the left through the NX bus connector.
Unit name
Function
EtherCAT
Coupler Unit
- When different I/O power supply voltage are used.
- When separating the power supply systems.
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
I/O power
supply
Unit power
supply
Case (b)
I/O power
supply
Case (a)
NX Unit
I/O power
supply
Unit power
supply
I/O power
supply
Additional I/O
Power Supply Unit
Separated by Additional I/O
Power Supply Unit
Internal
power
supply
circuit
NX Unit
Additional I/O
Power Supply Unit
Separated by Additional I/O
Power Supply Unit
EtherCAT
Coupler Unit
Internal
power
supply
circuit
Summary of Contents for NX-ECC201
Page 38: ...Sections in this Manual 36 NX series EtherCAT Coupler Unit User s Manual W519...
Page 46: ...1 EtherCAT Networks 1 8 NX series EtherCAT Coupler Unit User s Manual W519...
Page 56: ...2 Features and System Configuration 2 10 NX series EtherCAT Coupler Unit User s Manual W519...
Page 82: ...4 Part Names and Functions 4 14 NX series EtherCAT Coupler Unit User s Manual W519...
Page 100: ...5 Designing the Power Supply System 5 18 NX series EtherCAT Coupler Unit User s Manual W519...
Page 214: ...9 Setting Up Slave Terminals 9 44 NX series EtherCAT Coupler Unit User s Manual W519...
Page 254: ...11 EtherCAT Coupler Unit Functions 11 30 NX series EtherCAT Coupler Unit User s Manual W519...
Page 278: ...12 Communications Performance 12 24 NX series EtherCAT Coupler Unit User s Manual W519...
Page 340: ...14 Maintenance and Inspection 14 8 NX series EtherCAT Coupler Unit User s Manual W519...
Page 400: ...Appendices A 60 NX series EtherCAT Coupler Unit User s Manual W519...
Page 401: ...Index 1 NX series EtherCAT Coupler Unit User s Manual W519 I Index...
Page 405: ......