Mitsubishi Electric MELSERVO-J4 Instruction Manual page 30

1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
Alarm No.: 15 Name: Memory error 2 (EEP-ROM)
Alarm content
Detail
Detail name
No.
15.1 EEP-ROM error (1) EEP-ROM is
at power on
(2) Something near the
(3) The number of write
15.2 EEP-ROM error (1) The MR-J3-T10 came
during operation
(2) EEP-ROM is
(3) A write error occurred
(4) Something near the
15.4 Home position (1) EEP-ROM is
information read
error
(2) Multiple rotation data
(3) Something near the
(4) The number of write
A part (EEP-ROM) in the servo amplifier is failure.
[RJ010]: MR-J3-T10 came off.
Cause
Disconnect the cables
malfunctioning at power except for the control
on. circuit power supply,
and then check the
repeatability.
Check the power
device caused it. supply for noise.
Check if the connector
is shorted.
Check if parameters,
times exceeded point tables, or
100,000. programs are changed
very frequently.
Check if [AL. 74
off during the CC-Link Option card error 1]
IE communication. occurred with alarm
history.
Check if the error
malfunctioning during occurs when you
normal operation. change parameters
during normal
operation.
Check if the alarm
while adjustment results occurs after an hour
were processed. from power on.
Check the power
device caused it. supply for noise.
Check if the connector
is shorted.
Disconnect the cables
malfunctioning at power except for the control
on. circuit power supply,
and then check the
repeatability.
Check if the home
saved as a home position was set
position and read from correctly.
EEP-ROM were failure.
Check the power
device caused it. supply for noise.
Check if the connector
is shorted.
Check if parameters
times exceeded has been used very
100,000. frequently.
Check method Check result
It is repeatable.
It is not repeatable.
It has a failure.
It has no failure.
It was changed.
It is occurring.
It did not occur.
It occurs.
It does not occur.
It takes an hour or
more.
It takes less than an
hour.
It has a failure.
It is repeatable.
It is not repeatable.
It has a failure.
It has no failure.
It has a failure.
It has no failure.
It was changed.
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Action Target
Replace the servo [A]
amplifier. [B]
[WB]
Check (2).
[RJ010]
[GF]
Take
countermeasures
against its cause.
Check (3).
Replace the servo
amplifier. Change
the process to use
parameters, point
tables, and programs
less frequently after
replacement.
Check it with the [RJ010]
check method for
[AL. 74].
Check (2).
Replace the servo [A]
amplifier.
[B]
[WB]
Check (3).
[RJ010]
[GF]
Replace the servo
amplifier.
Check (4).
Take
countermeasures
against its cause.
Replace the servo [A]
amplifier. [GF]
Check (2).
Make home position
setting again.
Check (3).
Take
countermeasures
against its cause.
Check (4).
Replace the servo
amplifier. Change
the process to use
parameters less
frequently after
replacement.