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4 Installation and Wiring
4 - 18
NX-series System Units User’s Manual (W523)
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 current of I/O power supply of the Communications 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
- 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
current of I/O power supply
- 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
Internal
power
supply
circuit
Case (a)
Communications
Coupler Unit
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
Communications
Coupler Unit
NX Unit
Additional I/O
Power Supply Unit
Separated by Additional I/O
Power Supply Unit
Summary of Contents for Sysmac NX-TBX01
Page 7: ...5 CONTENTS NX series System Units User s Manual W523 ...
Page 34: ...Sections in this Manual 34 NX series System Units User s Manual W523 ...
Page 48: ...2 Specifications 2 4 NX series System Units User s Manual W523 ...
Page 116: ...4 Installation and Wiring 4 56 NX series System Units User s Manual W523 Unit ...
Page 136: ...6 Inspection and Maintenance 6 6 NX series System Units User s Manual W523 ...
Page 158: ...Appendices A 22 NX series System Units User s Manual W523 Installation Height 100 71 Unit mm ...
Page 166: ...Appendices A 30 NX series System Units User s Manual W523 ...
Page 167: ...I 1 I NX series System Units User s Manual W523 Index ...
Page 170: ...I 4 NX series System Units User s Manual W523 Index ...
Page 171: ......