Mitsubishi Electric MELSERVO-JE MR-JE-70A Instruction Manual page 248

8. TROUBLESHOOTING
Alarm No.: F2 Name: Drive recorder - Miswriting warning
Alarm content
Display Detail name
F2.1 Drive recorder - (1) The Flash-ROM is
Area writing
time-out
warning
F2.2 Drive recorder - (1) Data were not written to
Data miswriting
warning
Alarm No.: F3 Name: Oscillation detection warning
Alarm content
Display Detail name
F3.1 Oscillation Check it with the check method for [AL. 54.1].
detection
warning
A waveform measured by the drive recorder function was not recorded.
Cause
malfunctioning.
the drive recorder area.
[AL. 54 Oscillation detection] may occur.
Cause
Check method
Disconnect the cables It is repeatable.
except the power supply,
and then check the
repeatability.
Check if the records They have all written.
have all written.
Check method
8 - 27
Check result
Replace the servo
amplifier.
Delete the records in the
drive recorder window of
MR Configurator2.
If records cannot be
written after deletion,
replace the servo
amplifier.
Check result
Action
Action