Mitsubishi Electric MELSEC Q Series User Manual page 261

Error
Error
code
category classification
(decimal)
120
121
Zero/gain
adjustment ERR.1
122
error
123
124
Error
Error name
Flash ROM write
exceeded
Flash ROM write
error
Zero adjustment
error
Zero/gain
adjustment
setting error
Zero/gain
adjustment
value error
Operation at the
Description
error occurrence
For zero/gain
adjustment, a setting
value has been
consecutively written
to the flash ROM more
than 25 times.
For zero/gain
adjustment, the
setting value could not
be written in the flash
ROM.
For zero/gain
The zero/gain
adjustment, the zero
adjustment values
adjustment value is
are not reflected.
equal to or greater
than the gain
adjustment value.
The set value in
" Zero/gain
Cd.10
adjustment
specification" is
outside the setting
range.
The set value in
" Zero/gain
Cd.11
adjustment value
specification" is
outside the setting
range.
CHAPTER 14 TROUBLESHOOTING
Action
Turn off and on the
power supply, or reset
the CPU module or the
error.
Try writing the value
again.
If the error occurs
again, a failure might
have occurred on the
module. Please consult
your local Mitsubishi
representative.
Set the values so that
they meet the following
condition: Zero
adjustment value <
Gain adjustment value
Set a value within the
setting range (1, 2) in
" Zero/gain
Cd.10
adjustment
specification".
Set a value within the
setting range (-3000 to
3000) in "
Cd.11
Zero/gain adjustment
value specification".
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