7–4
Chapter 7 – RUN Mode and Errors
GLC2400/2500/2600 Series User Manual
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.”
1. CHARACTER PATTERN
Checks each font’s pattern and each kanji character’s ROM. Used when kanji
characters do not display. If no error exists, the message
OK
appears. If an
error exists, the message
NG
appears.
2. DISPLAY PATTERN
Checks 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 a
problem exists,
NG
displays.
3. TOUCH PANEL
Checks that each touch cell lights up when touched.
4. INTERNAL FEPROM (Screen Area)
Checks the internal FEPROM when a screen display error occurs. When using
this check menu, you need to enter the password
*1
.
•
When you run this check, all screen data that have been created will be
deleted. Therefore, be sure to back up data prior to running this check.
•
When this check menu is completed, you will need to initialize the inter-
nal memory (FEPROM).
While checking, the following series of screens will display.
****
If no error exists, the message
OK
will appear. If an error exists, an error
message will appear.
The number of symbol marks (such as “OOOO”) that display on the screen
may vary, depending on the GLC type.
• The symbol “O” indicates the GLC is operating the erase check.
• The symbol “*” indicates the GLC is operating the R/W check.
1.
Enter either the password you have designated in the INITIALIZE screen, or the
common password, “1101.”
7.2.2 SELF-DIAGNOSIS - Details