Mitsubishi Electric MELSERVO-JE Instruction Manual page 22

1. SERVO AMPLIFIER TROUBLESHOOTING
Alarm No.: 16 Name: Encoder initial communication error 1
Alarm content
Detail
Detail name
No.
16.A Encoder initial (1) The servo amplifier is
communication -
Process error 1
(2) An encoder is
(3) Something near the
16.B Encoder initial Check it with the check method for [AL. 16.A].
communication -
Process error 2
16.C Encoder initial
communication -
Process error 3
16.D Encoder initial
communication -
Process error 4
16.E Encoder initial
communication -
Process error 5
16.F Encoder initial
communication -
Process error 6
Alarm No.: 17 Name: Board error
Alarm content
Detail
Detail name
No.
17.1 Board error 1 (1) A current detection
(2) Something near the
17.3 Board error 2 Check it with the check method for [AL. 17.1].
17.4 Board error 3 (1) The servo amplifier
(2) Something near the
17.5 Board error 4 (1) The setting value of the
(2) Something near the
17.6 Board error 5 (1) Something near the
17.7 Board error 7 Check it with the check method for [AL. 17.4].
An error occurred in the communication between an encoder and servo amplifier.
Cause
Replace the servo
malfunctioning. amplifier, and then
check the
repeatability.
Replace the servo
malfunctioning. motor, and then check
the repeatability.
Check the noise,
device caused it. ambient temperature,
vibration, etc.
A part in the servo amplifier has a failure.
Cause
Check if the alarm
circuit is occurs during the
malfunctioning. servo-on status.
Check the noise,
device caused it. ambient temperature,
etc.
Disconnect the cables
recognition signal was except for the power
not read properly. supply, and then
check the
repeatability.
Check the noise,
device caused it. ambient temperature,
etc.
Disconnect the cables
axis selection rotary except for the power
switch (SW1) was not supply, and then
read normally. check the
repeatability.
Check the noise,
device caused it. ambient temperature,
etc.
Check the noise,
device caused it. ambient temperature,
etc.
Check method Check result
It is not repeatable.
It is repeatable.
It is not repeatable.
It is repeatable.
It has a failure.
Check method Check result
It occurs.
It does not occur.
It has a failure.
It is repeatable.
It is not repeatable.
It has a failure.
It is repeatable.
It is not repeatable.
It has a failure.
It has a failure.
It has no failure.
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Action Target
Replace the servo [A]
amplifier. [B]
[C]
Check (2).
Replace the servo
motor.
Check (3).
Take
countermeasures
against its cause.
Action Target
Replace the servo [A]
amplifier. [B]
[C]
Check (2).
Take
countermeasures
against its cause.
Replace the servo
amplifier.
Check (2).
Take
countermeasures
against its cause.
Replace the servo [B]
amplifier.
Check (2).
Take
countermeasures
against its cause.
Take
countermeasures
against its cause.
Replace the servo
amplifier.