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4 Installation and Wiring
4 - 48
NX-series Digital I/O Unit User’s Manual (W521)
Countermeasure 2
Mount a limiting resistor.
When I/O power is supplied from the NX bus, the method is as shown in the following figure.
When I/O power is supplied from an external source, the method is as shown in the following figure.
In countermeasure 1, the current consumption from I/O power supply is increased although the voltage
supplied to the load L is not decreased.
In countermeasure 2, the voltage supplied to the load L is decreased although the current consumption
from I/O power supply is not increased.
Select the appropriate countermeasures according to the operating conditions.
IOG
IOV
IOG
IOV
OUT
IOG
IOV
IOG
IOV
OUT
NPN type
PNP type
L
L
Transistor Output Unit
Communications
Coupler Unit or
Additional I/O Power
Supply Unit
Transistor Output Unit
Communications
Coupler Unit or
Additional I/O Power
Supply Unit
R
OUT
COM
+
Transistor Output Unit
NPN type
PNP type
L
OUT
COM
+
Transistor Output Unit
L
R
Содержание NX-IA3117
Страница 34: ...Sections in this Manual 32 NX series Digital I O Unit User s Manual W521...
Страница 52: ...1 Features and System Configuration 1 18 NX series Digital I O Unit User s Manual W521...
Страница 56: ...2 Specifications 2 4 NX series Digital I O Unit User s Manual W521...
Страница 152: ...5 I O Refreshing 5 36 NX series Digital I O Unit User s Manual W521...
Страница 204: ...8 Digital Mixed I O Units 8 8 NX series Digital I O Unit User s Manual W521...
Страница 224: ...9 Troubleshooting 9 20 NX series Digital I O Unit User s Manual W521...
Страница 230: ...10 Inspection and Maintenance 10 6 NX series Digital I O Unit User s Manual W521...
Страница 290: ...Appendices A 60 NX series Digital I O Unit User s Manual W521 Installation Height 100 71 Unit mm...
Страница 337: ...I 1 I NX series Digital I O Unit User s Manual W521 Index...
Страница 340: ...I 4 NX series Digital I O Unit User s Manual W521 Index...