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10 Maintenance and Inspection
NX-series Safety Control Unit User’s Manual (Z930)
10-2 Maintenance Procedures
10
10-2-1 Replacing the Safety CPU Unit
When you add a new Safety CPU Unit to the system, a Slave Initialization Error will occur in the
NJ/NX-series CPU Unit.
2 Select Synchronization from the Controller Menu. Click the Transfer to Controller Button in
the Synchronization Window to transfer the Slave Terminal configuration information from the
computer to the Safety CPU Unit.
Refer to 8-2-2 Transfer Procedure for a Connection to NJ/NX-series CPU Unit on page 8-8 for a
detailed procedure.
3 Reset the error from the Troubleshooting Dialog Box.
4 Select the Safety CPU Unit as the Controller.
The Sysmac Studio goes online with the Safety CPU Unit.
5 Place the Safety CPU Unit in DEBUG mode.
Refer to 8-4 Changing to DEBUG Mode on page 8-17 for a detailed procedure.
6 On the Safety CPU Unit Setup and Programming View, select Safety Validation from the Con-
troller Menu to transfer the safety programs to the non-volatile memory in the Safety CPU Unit.
Refer to 8-9-1 Performing Safety Validation on page 8-48 for a detailed procedure.
7 Change the operating mode of the Safety CPU Unit to RUN mode. Or, cycle the power supply to
Safety CPU Unit.
Refer to 8-9-2 Changing to RUN Mode on page 8-50 for a detailed procedure.
When Sysmac Studio Is Connected to Communications Coupler Unit
1 Place the Sysmac Studio online with the Communications Coupler Unit.
When you add a new Safety CPU Unit to the system, a Slave Initialization Error will occur in the
Communications Coupler Unit.
2 Right-click the Communications Coupler Unit and select Transfer to Controller from the menu
to transfer the Slave Terminal configuration information to the Safety CPU Unit.
Refer to 8-2-3 Transfer Procedure for a Connection to Communications Coupler Unit on page
8-9 for a detailed procedure.
3 Reset the error from the Troubleshooting Dialog Box.
4 Select the Safety CPU Unit as the Controller.
The Sysmac Studio goes online with the Safety CPU Unit.
5 Place the Safety CPU Unit in DEBUG mode.
Refer to 8-4 Changing to DEBUG Mode on page 8-17 for a detailed procedure.
6 On the Safety CPU Unit Setup and Programming View, select Safety Validation from the Con-
troller Menu to transfer the safety programs to the non-volatile memory.
Refer to 8-9-1 Performing Safety Validation on page 8-48 for a detailed procedure.
7 Change the operating mode of the Safety CPU Unit to RUN mode. Or, cycle the power supply to
Safety CPU Unit.
Refer to 8-9-2 Changing to RUN Mode on page 8-50 for a detailed procedure.
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