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3-5SectionUsing a Memory Unit (-Vj Versions)
46
• The continuous buzzer sounds.
• The RUN LED flashes.
If a protect setting error occurs when executing manual transmission, it is pos-
sible to return to the memory unit manual transmission screen by pressing the
OK touch switch, but in the case of other errors, the status described above re-
mains in effect until the NT31/NT31C power is turned OFF or reset.
When an error occurs, take remedial action by referring to the table below.
Error Probable Cause Remedial Action
Mode setting error DIP switches SW1-1 to
SW1-3 are all OFF, or
more than one is ON.
Turn the NT31/NT31C power
OFF, set the memory unit DIP
switches correctly, then turn the
NT31/NT31C power back ON.
Protect setting error
(automatic
transmission)
Writing to the data write
destination has been
prohibited by the setting
of SW2-1 or SW2-2.
Turn the NT31/NT31C power
OFF, set the memory unit DIP
switches correctly, then turn the
NT31/NT31C power back ON.
Protect setting error
(manual
transmission)
Writing to the data write
destination has been
prohibited by the setting
of SW2-1 or SW2-2.
Perform either of the following
procedures.
S Press the OK touch switch to re-
turn to the memory unit manual
transmission screen, make the
correct settings, then try again.
S Turn the NT31/NT31C power
OFF, correct the DIP switches
settings of the memory unit, then
turn the power back ON.
Flash memory error An error occurred during
initialization of the
NT31/NT31C or memory
unit flash memory, or
during write processing.
Turn the NT31/NT31C power
OFF, then back ON. If the error
recurs, the flash memory at the
write destination may be faulty. In
this case, replace the unit.
Verify error An error occurred during
verification processing at
the flash memory of the
NT31/NT31C or the
memory unit.
Turn the NT31/NT31C power
OFF, then back ON. If the error
recurs, the flash memory at the
write destination may be faulty. In
this case, replace the unit.
Transmitting data
error
(The automatic
transmission only)
An attempt is made to
transmit data other than
a system program or the
system program of a
different PC model into
the NT31/NT31C as the
system program.
An attempt is made to
write a system program
into the NT31/NT31C as
screen data.
Perform either of the following
procedures.
S Turn the NT31/NT31C power
OFF, correct the DIP switch set-
tings of the memory unit, and
then turn the power back ON.
S Turn the NT31/NT31C power
OFF, set the DIP switch settings
to the manual transmission, and
then check the data inside the
memory unit.