Is it safe to use the Keypad Button Status Monitor (U5-92) to operate and stop the drive?
No — the manual includes an explicit safety warning stating that you must not create a host controller program or DriveWorksEZ program that references U5-92 to operate and stop the drive. Mishandling this monitor in that way may damage the drive or cause death or serious injury. (Page 8)
From the official Yaskawa Ga800 Variable Speed Drive manual, page 8
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