# A WARNING WHEN LOGIN FAILS

If a login fails three times in succession, a warning is displayed and further login is disabled for five minutes. This prevents an unauthorised person from attempting to guess a password. (The number of failed login attempts is retained even if the power is turned off.)
Locking of the operation panel for five minutes can be cancelled by selecting [User Control] in "Setting mode" → [Default Settings] → [Release the Lock on Machine Operation Panel].
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