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8 Checking Operation and Actual Operation
NX-series Safety Control Unit User’s Manual (Z930)
8-9 Performing Safety Validation and Operation
8
8-9-1 Performing Safety Validation
Performing Safety Validation
1 Place the Sysmac Studio online with the Safety CPU Unit, place the Safety CPU Unit in DEBUG
mode, and select Safety Validation from the Controller Menu.
The following confirmation dialog is displayed.
2 Click the Yes Button.
After the validated safety programs are saved to non-volatile memory in the Safety CPU Unit,
the following dialog is displayed to indicate the process was completed, and then the Safety
CPU Unit enters the state shown below.
• The Safety CPU Unit is set to the validated state, and the VALID indicator changes from not lit to
lit yellow.
• When you cycle the power, the Safety CPU Unit starts in RUN mode.
3 Click the OK Button.
Remember that if safety validation is successful, the next time the Safety CPU Unit is started, it
will automatically start in RUN mode.
When you download the parameters for the EtherCAT Coupler Unit and NX Units, the Safety
CPU Unit automatically restarts.
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