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6 System Configuration and Setup
NX-series Safety Control Unit User’s Manual (Z930)
6-3 Controller Configuration and Setup of the Safety Control Units
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6-3-3 Procedure to Change the Model of the Safety CPU Unit
After you create the Controller configuration, you can change the model or unit version of the Safety
Control Unit without changing the saved settings information.
Use the following procedure to change the Safety CPU Unit. You can also change the model of a Safety
I/O Unit with essentially the same procedure.
1 Display the Slave Terminal Tab Page for the Slave Terminal where the Safety CPU Unit to
change is located.
2 Right-click the Safety CPU Unit to change and select Change Model.
The Change Model Dialog Box is displayed.
3 Select the model or unit version to change to and then click the OK Button.
Precautions for Correct Use
• Safety validation is not executed when you change the model of a Safety Control Unit.
Always execute safety validation again after you change the model.
• If you change the model of a Safety Control Unit, recalculate the safety reaction times. The
safety reaction times may change if you change the model.
6-3-3 Procedure to Change the Model of the Safety CPU Unit
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