27 5 The password confirmation dialog box is displayed. Leave the Password Field blank and click OK. * If a password is set, refer to 9- 9-1 Security Settings of the NX-series Safety Control Unit/ Communication Control Unit User's Manual (Cat. No. Z395). 6 Select Safety Validation from the Controller Menu. 7 The confirmation dialog box on the right is displayed. Check the contents and click Yes. 8 The dialog box on the right is displayed. Check the contents and click OK. 9 The Safety Validation Dialog Box is displayed. Check the contents and click OK.