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7 Digital Output Units
7 - 24
NX-series Digital I/O Unit User’s Manual (W521)
Precautions for Correct Use
Do not connect a contact protection circuit with an inductive load as shown in the diagram
below.
This contact protection circuit is very effective for preventing spark discharge when the circuit is
opened. However, when the contacts are closed, the contacts may be welded due to the cur-
rent charged in the capacitor. DC inductive loads can be more difficult to switch than resistive
loads. If an appropriate contact protection circuit is used, however, DC inductive loads are as
easy to switch as resistive loads.
Power
supply
Inductive
load
Summary of Contents for NX-IA3117
Page 34: ...Sections in this Manual 32 NX series Digital I O Unit User s Manual W521...
Page 52: ...1 Features and System Configuration 1 18 NX series Digital I O Unit User s Manual W521...
Page 56: ...2 Specifications 2 4 NX series Digital I O Unit User s Manual W521...
Page 152: ...5 I O Refreshing 5 36 NX series Digital I O Unit User s Manual W521...
Page 204: ...8 Digital Mixed I O Units 8 8 NX series Digital I O Unit User s Manual W521...
Page 224: ...9 Troubleshooting 9 20 NX series Digital I O Unit User s Manual W521...
Page 230: ...10 Inspection and Maintenance 10 6 NX series Digital I O Unit User s Manual W521...
Page 337: ...I 1 I NX series Digital I O Unit User s Manual W521 Index...
Page 340: ...I 4 NX series Digital I O Unit User s Manual W521 Index...