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5 Designing the Power Supply System
NX-series PROFINET Coupler Unit User’s Manual (W623)
5-4 Selecting External Pow
er Supplies and Protective Devices
5
5-4-3 Selecting Protective Devices
• Using Unwired Unit Power Supply Terminals
In this example, the current consumption from each power supply is as follows:
Current consumption from Unit power supply: I I_unit2
Lowest rated current
Current consumption from IO power supply: I_io1 + I_io2
Lowest rated current
*1
*1. This is the lowest rated current of all of the Units that supply IO power and are connected to protective
devices. For example, if terminals with both a 10-A and 4-A capacities are connected, the value is 4 A.
Unit power
supply terminals
PROFINET
Coupler Unit
Additional NX Unit
Power Supply Unit
Additional NX Unit
Power Supply Unit
NX Unit
power supply
NX Unit
power supply
NX Unit
power
supply
NX Unit
power
supply
Additional I/O
Power Supply Unit
Additional I/O
Power Supply Unit
Block that is supplied Unit
power from the PROFINET
Coupler Unit
Block that is supplied I/O power from the PROFINET
Coupler Unit
Block that is supplied
Unit power from the
Additional NX Unit
Power Supply Unit
Block that is supplied I/O
power from the Additional
I/O Power Supply Unit
I I_unit2
I_unit1
I_unit2
I_io1
I_io2
Unwired
terminals
NX Unit
Unit power
supply terminals
I/O power
supply
terminals
I/O power
supply
terminals
I/O power supply terminals
I/O power supply terminals
I/O power
supply
Internal
power
supply
circuit
Unit power
supply
Internal
power
supply
circuit
Protective
device
Protective
device
Protective
device
Содержание PROFINET NX-PNC202
Страница 9: ...7 NX series PROFINET Coupler Unit User s Manual W623 CONTENTS...
Страница 12: ...Manual Structure 10 NX series PROFINET Coupler Unit User s Manual W623...
Страница 32: ...Revision History 30 NX series PROFINET Coupler Unit User s Manual W623...
Страница 34: ...Sections in this Manual 32 NX series PROFINET Coupler Unit User s Manual W623...
Страница 126: ...6 Installation 6 32 NX series PROFINET Coupler Unit User s Manual W623...
Страница 192: ...10 I O Refreshing 10 6 NX series PROFINET Coupler Unit User s Manual W623...
Страница 224: ...11 PROFINET Coupler Unit Functions 11 32 NX series PROFINET Coupler Unit User s Manual W623...
Страница 260: ...12 Troubleshooting 12 36 NX series PROFINET Coupler Unit User s Manual W623...
Страница 268: ...13 Maintenance and Inspection 13 8 NX series PROFINET Coupler Unit User s Manual W623...
Страница 274: ...Appendices A 6 NX series PROFINET Coupler Unit User s Manual W623...
Страница 275: ...I 1 I I NX series PROFINET Coupler Unit User s Manual W623 Index...
Страница 280: ...I 6 NX series PROFINET Coupler Unit User s Manual W623 Index...
Страница 281: ......