MM-400A
13. Error List and Maintenance
13-5
Error
code
Description Cause Remedy
E15 INTERNAL
MEMORY
ERROR
Measured value
data in memory
is damaged.
If the data in memory is corrupt, the following are
possible causes:
• Generation of powerful power supply or
electrostatic noise
• Abnormal supply voltage resulting, for example,
from lightening or induced lightening
It is advisable to back-up measured value data
onto other media often, as a precaution against
possible data corruption.
If the error is not eliminated, the MM-400A needs
repair. Please contact us.
The limit of the
writing data
quantity in the
flash memory
(120 waveforms
or all cycles in
total) has
exceeded.
Save the loaded data of “q. INTERNAL MEMORY
Screen in Chapter 8, “Operation Screens” in the
USB and perform the ALL DEL function.
E17 CURRENT
TRIGGER
ERROR
The current
signal continues
to be detected.
If, after measurement, the current trigger
continues to be applied, bring the current trigger
down below the trigger level after measurement.
If the error is not eliminated, the MM-400A needs
repair. Please contact us.
E18 VOLTAGE
TRIGGER
ERROR
The voltage
signal continues
to be detected.
If, after measurement, the voltage trigger
continues to be applied, bring the voltage trigger
down below the trigger level after measurement.
If the error is not eliminated, the MM-400A needs
repair. Please contact us.
E19 FORCE
TRIGGER
ERROR
After
measurement,
the force input
signal remains
above the trigger
levels.
If, after measurement, force continues to be
applied, bring the force down below the trigger
level after measurement.
If the error is not eliminated, the MM-400A needs
repair. Please contact us.
E20 EXTERNAL
TRIGGER
ERROR
After
measurement,
the external input
(±10 V voltage or
4 to 20 mA
current) signal
remains above
the trigger levels.
If, after measurement, external input continues to
be supplied, bring the external input down below
the trigger level after measurement.
However, for 4 to 20 mA current input, an error
occurs even with 0 mA or 4 mA or less. Therefore,
it is required to input at least 4 mA. Adjust the
current level to keep 4 mA to trigger level or less.
If the error is not eliminated, the MM-400A needs
repair. Please contact us.
E22 COMMUNICA
TION ERROR
The
communication
output cannot
keep up with the
measurement.
When MEASUREMENT is selected for ITEM:
• Communication for measurement is not in time.
When the communication output buffer (4000) is
exceeded, an error occurs. Check the
measurement interval and the communication
speed.
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