Yaskawa MotionSuite Series Machine Controller Software Manual - Manual (Page 173)

MotionSuite™ Series Machine Controller Software Manual Chapter 6: Module Configuration
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b. Choose the Yes button. The configuration data has been deleted.
6.6.5 Closing the Network Configuration
Follow the steps below to close the network configuration.
a. Select File (F) → Close (C) from the menus, then choose the Yes button.