Mitsubishi Electric MELSERVO-J4 MR-J4 TM Instruction Manual page 261

8. TROUBLESHOOTING
Alarm No.: 85 Name: Network module error
Alarm content
Detail
Detail name
No.
85.1 Network (1) The network module
module error 1
(2) A network cable was
(3) The wiring of the
(4) A network cable was
(5) The setting of the
(6) Something near the
(7) The network module is
(8) The servo amplifier is
(9) The controller is
85.2 Network Check it with the check method for [AL. 85.1].
module error 2
85.3 Network
module error 3
The network module was disconnected.
An error occurred in the network module. (Refer to section 8.7.)
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 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. Check (4).
It has a failure.
It has no failure.
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 - 14
Action Target
Connect it correctly. [TM]
Check (2).
Connect it correctly.
Check (3).
Wire it correctly.
Replace the network
cable.
Check (5).
Review the settings.
Check (6).
Take
countermeasures
against its cause.
Check (7).
Replace the network
module.
Check (8).
Replace the servo
amplifier.
Check (9).
Replace the
controller.