Mitsubishi Electric MELSERVO MR-J4-B-RJ Series, Инструкция по эксплуатации

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1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
1 - 32
Alarm No.: 20 Name: Encoder normal communication error 1
Alarm content An error occurred in the communication between an encoder and servo amplifier.
Detail
No.
Detail name Cause Check method Check result Action Target
20.9 Encoder
normal
communication
- Receive data
error 4
Check it with the check method for [AL. 20.1].
20.A Encoder
normal
communication
- Receive data
error 5
Alarm No.: 21 Name: Encoder normal communication error 2
Alarm content The encoder detected an error signal.
Detail
No.
Detail name Cause Check method Check result Action Target
21.1 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]
[RJ010]
[GF]
It is repeatable. Check (2).
(2) The external conductor
of the encoder cable is
not connected to the
ground plate of the
connector.
Check if it is
connected. It is not connected. Connect it correctly.
It is connected. Check (3).
(3) An encoder is
malfunctioning.
Replace the servo
motor, and then
check the
repeatability. It is not repeatable. Replace the servo
motor.
It is repeatable. Check (4).
(4) Something near the
device caused it.
Check the noise,
ambient temperature,
vibration, etc. It has a failure. Take
countermeasures
against its cause.
21.2 Encoder data
update error
(1) An encoder is
malfunctioning.
Replace the servo
motor, and then check
the repeatability. It is not repeatable. Replace the servo
motor. [A]
[B]
[WB]
[RJ010]
[GF]
It is repeatable. Check (2).
(2) The external conductor
of the encoder cable is
not connected to the
ground plate of the
connector.
Check if it is
connected. It is not connected. Connect it correctly.
It is connected. Check (3).
(3) Something near the
device caused it.
Check the noise,
ambient temperature,
etc. It has a failure. Take
countermeasures
against its cause.
21.3 Encoder data
waveform error
Check it with the check method for [AL. 21.2].
21.4 Encoder non-
signal error
(1) A signal of the encoder
has not been inputted.
Check if the encoder
cable is wired
correctly. It has a failure. Review the wiring. [A]
[B]
[WB]
[GF]
It has no failure. Check (2).
(2) The external conductor
of the encoder cable is
not connected to the
ground plate of the
connector.
Check if it is
connected. It is not connected. Connect it correctly.
It is connected. Check (3).
(3) Something near the
device caused it.
Check the noise,
ambient temperature,
etc. It has a failure. Take
countermeasures
against its cause.