Omron NT631 Operation Manuals page 70

Using a Memory Unit (NT631/NT631C without V1)
Errors When Using a Memory Unit
If an error occurs when using the memory unit, the NT631/NT631C operates as
follows.
S The details of the error and remedial action are displayed on the screen.
S The continuous buzzer sounds.
S The RUN LED flashes.
If a protect setting error occurs when executing manual transmission, it is possible
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 remains in effect
until the NT631/NT631C power is turned OFF or reset.
When an error occurs, take remedial action by referring to the table below.
Error
Mode setting error
Protect setting error
(automatic
transmission)
Protect setting error
(manual
transmission)
Flash memory error
Verify error
Probable Cause
DIP switches SW1-1 to
SW1-3 are all OFF, or
more than one is ON.
Writing to the data write
destination has been
prohibited by the setting
of SW2-1 or SW2-2.
Writing to the data write
destination has been
prohibited by the setting
of SW2-1 or SW2-2.
An error occurred during
initialization of the
NT631/NT631C or
memory unit flash
memory, or during write
processing.
An error occurred during
verification processing at
the flash memory of the
NT631/NT631C or the
memory unit.
Section 3-6
Remedial Action
Turn the NT631/NT631C power
OFF, set the memory unit DIP
switches correctly, then turn the
NT631/NT631C power back ON.
Turn the NT631/NT631C power
OFF, set the memory unit DIP
switches correctly, then turn the
NT631/NT631C power back ON.
Perform either of the following
procedures.
S Press the OK touch switch to return
to the memory unit manual trans-
mission screen, make the correct
settings, then try again.
S Turn the NT631/NT631C power
OFF, correct the DIP switches set-
tings of the memory unit, then turn
the power back ON.
Turn the NT631/NT631C 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.
Turn the NT631/NT631C 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.
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