Mitsubishi Electric Melservo-J4 Instruction Manual page 42

Alarm No.: 1E
Alarm content
Detail Detail name
No.
1E.1 Encoder
malfunction
1E.2 Load-side
encoder
malfunction
Alarm No.: 1F
Alarm content
Detail Detail name
No.
1F.1 Incompatible
encoder
1F.2 Incompatible
load-side
encoder
1 TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
40
1.4 Remedies for alarms
Name: Encoder initial communication error 2
 An encoder is malfunctioning.
Cause Check method
(1) An encoder is Replace the servo motor,
malfunctioning. and then check the
repeatability.
(2) Something near the Check the noise, ambient
device caused it. temperature, vibration,
etc.
(1) A load-side encoder is Replace the load-side
malfunctioning. encoder, and then check
the repeatability.
(2) Something near the Check the noise, ambient
device caused it. temperature, vibration,
etc.
Name: Encoder initial communication error 3
 The connected encoder is not compatible with the servo amplifier.
Cause Check method
(1) A servo motor or linear Check the model of the
encoder, which is not servo motor/linear
compatible with the encoder.
servo amplifier, was
connected.
(2) The software version of Check if the software
the servo amplifier does version supports the
not support the servo servo motor/linear
motor or linear encoder. encoder.
(3) An encoder is Replace the servo motor
malfunctioning. or linear encoder, and
then check the
repeatability.
(1) A load-side encoder, Check the model of the
which is not compatible load-side encoder.
with the servo amplifier,
was connected.
(2) The software version of Check if the software
the servo amplifier does version of the servo
not support the load- amplifier supports the
side encoder. load-side encoder.
(3) A load-side encoder is Replace the load-side
malfunctioning. encoder, and then check
the repeatability.
Check result Action
It is not repeatable. Replace the servo motor.
It is repeatable. Check (2).
There is a problem in the Take countermeasures
surrounding. against its cause.
It is not repeatable. Replace the load-side
encoder.
It is repeatable. Check (2).
There is a problem in the Take countermeasures
surrounding. against its cause.
Check result Action
It is not compatible with Replace it with a
the servo amplifier. compatible one.
It is compatible with the Check (2).
servo amplifier.
It is not compatible. Replace the servo
amplifier to one which
software version
supports the servo
motor/linear encoder.
It is compatible. Check (3).
It is not repeatable. Replace the servo motor
or linear encoder.
It is repeatable. Replace the servo
amplifier.
It is not compatible with Use a load-side encoder
the servo amplifier. which is compatible with
the servo amplifier.
It is compatible with the Check (2).
servo amplifier.
It is not compatible. Replace the servo
amplifier to one which
software version
supports the load-side
encoder.
It is compatible. Check (3).
It is not repeatable. Replace the load-side
encoder.
It is repeatable. Replace the servo
amplifier.
Target
[A]
[B]
[WB]
[RJ010]
[GF]
[A]
[B]
[WB]
[GF]
Target
[A]
[B]
[WB]
[RJ010]
[GF]
[A]
[B]
[WB]
[GF]