1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
1 - 73
Alarm No.: 71
Name: Load-side encoder normal communication error 1
Alarm content
An error occurred in the communication between the load-side encoder and servo amplifier.
Detail
No.
Detail name
Cause
Check method
Check result
Action
Target
71.2 Load-side
encoder normal
communication -
Receive data
error 2
Check it with the check method for [AL. 71.1].
71.3 Load-side
encoder normal
communication -
Receive data
error 3
71.5 Load-side
encoder normal
communication -
Transmission
data error 1
71.6 Load-side
encoder normal
communication -
Transmission
data error 2
71.7 Load-side
encoder normal
communication -
Transmission
data error 3
71.9 Load-side
encoder normal
communication -
Receive data
error 4
71.A Load-side
encoder normal
communication -
Receive data
error 5
Alarm No.: 72
Name: Load-side encoder normal communication error 2
Alarm content
The load-side encoder detected an error signal.
Detail
No.
Detail name
Cause
Check method
Check result
Action
Target
72.1 Load-side
encoder data
error 1
(1) The encoder detected a
high speed/acceleration
rate due to an oscillation
or other factors.
Decrease the loop
gain, and then check
the repeatability.
It is not repeatable.
Use the encoder
with low loop gain.
[A]
[B]
[WB]
[GF]
It is repeatable.
Check (2).
(2) A load-side encoder is
malfunctioning.
Replace the load-side
encoder, and then
check the
repeatability.
It is not repeatable.
Replace the load-
side encoder.
It is repeatable.
Check (3).
(3) Something near the
device caused it.
Check the noise,
ambient temperature,
vibration, etc.
It has a failure.
Take
countermeasures
against its cause.
Содержание MELSERVO MR-J4-B-RJ Series
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