Omron Programmable Terminals NT631C - Manual (Page 219)

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System Maintenance Section 6-11
Checking the Buzzer Check if the buzzer sounds correctly.
Reference: The buzzer will sound in this check regardless of the setting made with the
Buzzer Sound memory switch.
Check the buzzer by following the menu operation from the System Menu
shown below.
• If the buzzer functions correctly, it will sound continuously. At this time, the
Buzzer Check touch switch will be displayed in reverse video.
• To stop the buzzer while it is sounding, press the Buzzer Check touch
switch again.
Select Maintenance Mode.
Select I/O Check.
Select Device Check.
Select Buzzer Check.
Ver 4.12