Mitsubishi Electronics F94GOT ユーザーズマニュアル

5-4

When the display is dark, adjust the brightness selecting "MODE SELECT MENU SCREEN" -
"OTHER MODE" - "SET-UP MODE" - "LCD CONTRAST". If the screen remains dark even
after adjustment, it is recommended to replace the backlight. For replacement of the backlight,
consult with a Mitsubishi Electric distributor.
For the details of the utility function, refer to the GOT-A900 SERIES OPERATING MANUAL
(EXTENTION FUNCTIONS/OPTIONAL FUNCTIONS).

The table below shows the list of error messages displayed during manipulation or operation.
Check the contents, and take proper action.

CAN NOT WRITE 
PLC MEMORY.

The PLC is running in EPROM mode. 
Or the write-protect switch of the 
EEPROM is set to ON.

Run the PLC in RAM mode. Or set the 
write-protect switch of the EEPROM to 
OFF.

PLC IS RUNNING.

A personal computer is attempting to 
write a program using "DATA 
TRANSFER” in "OTHER MODE" while 
the PLC is running. Or an entry code 
has been registered.

Stop the PLC. Or enter the correct 
entry code.

DATA IS NOT 
FOUND.

There are no screen data or data files.

Create the data using the programming 
software.

DISPLAY SCREEN 
IS NOT AVAILABLE.

Screen No. 0 (FX-PCS-DU/WIN-E) or 
screen No. 1 (GT Designer) does not 
exist.
When a screen is to be changed over, 
there is no destination screen.

Create screen No. 0 or 1.
Or change the changeover destination 
screen, or create the corresponding 
screen.