User manual

7–12
Chapter 7 – RUN Mode and Errors
LT Series User Manual
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 DISPLAY PATTERN
Used to check the drawing function when the buzzer does not sound and when
the device contents do not display correctly. Checks are performed on the
various screen pattern displays (8 screens), the ON/OFF Display, and the
KANJIROM CHECKSUM. When the ON/OFF Display is checked, the Buzzer
ON/OFF check is run simultaneously. If KANJIROM CHECKSUM is normal,
OK displays. If there is a problem, NG displays.
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 TOUCH PANEL
Touch Panel check. Checks if each touch cell lights up when touched.
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 INTERNAL FEPROM CHECKSUM (Display Area)
The Internal FEPROM system and Protocol check searches for any problems
that may occur during operation. When running the check, the screen changes
as follows:
This section explains the contents of SELF-DIAGNOSIS.
For information on how to operate the menu interface, see Chapter 5 –
“
OFFLINE Mode.”
For information on how to set up the Special Tools, see Chapter 3 –
“Installation and Wiring.”
When the
FEPROM is normal, OK displays. If there is a problem, the screen
stops in the middle of operation. This check does not erase the System or
Protocol.
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 FRAME BUFFER
The Frame Buffer Check (display memory) looks for any display problems that
may develop. When everything is normal, OK displays. When there is a
problem, an error message displays.
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7.3.2 SELF-DIAGNOSIS - Details