Mitsubishi Electric MELSERVO-J4 MR-J4 TM Instruction Manual page 262

8. TROUBLESHOOTING
Alarm No.: 86 Name: Network communication error
Alarm content
Detail
Detail name
No.
86.1 Network (1) The network module
communication
error 1
(2) A network cable was
(3) The wiring of the
(4) A network cable was
(5) The network was
(6) Data transmission from
(7) The setting of the
(8) Something near the
(9) The network module is
(10) The servo amplifier is
(11) The controller is
86.2 Network Check it with the check method for [AL. 86.1].
communication
error 2
86.3 Network
communication
error 3
An error occurred in the network module.
An error occurred in the network communication.
Cause
Check if the network
was disconnected. module is connected
correctly.
Check if the network
disconnected. cable is connected
correctly.
Check if the wiring of
network cable was network cable is
incorrect. correct.
Check if the network
disconnected. cable is
malfunctioning.
Check if the network
disconnected by a was disconnected
wrong procedure. according to the kind
of network.
Check if data
the controller was transmission from the
interrupted for a certain controller is not
period of time. interrupted.
Check the controller
controller is incorrect. setting.
Check the noise,
device caused it. ambient temperature,
etc. Refer to section
11.14 for the noise
reduction techniques.
Replace the network
malfunctioning. module, and then
check the
repeatability.
Replace the servo
malfunctioning. amplifier, and then
check the
repeatability.
Replace the controller,
malfunctioning. and then check the
repeatability.
Check method Check result
It is not connected
correctly.
It is connected
correctly.
It is not connected.
It is connected.
The wiring is
incorrect.
The wiring is
correct.
It has a failure.
It has no failure.
It was not performed. Perform it.
It was performed.
It is interrupted.
It is not interrupted.
It is incorrect.
It is correct.
It has a failure.
It has no failure.
It is not repeatable.
It is repeatable.
It is not repeatable.
It is repeatable.
It is not repeatable.
8 - 15
Action Target
Connect it correctly. [TM]
Check (2).
Turn off the control
circuit power supply
of the servo
amplifier, and then
connect the network
cable correctly.
Check (3).
Wire it correctly.
Check (4).
Replace the network
cable.
Check (5).
Check (6).
Review the controller
communication
setting.
Check (7).
Review the settings.
Check (8).
Take
countermeasures
against its cause.
Check (9).
Replace the network
module.
Check (10).
Replace the servo
amplifier.
Check (11).
Replace the
controller.