Mitsubishi Electric MELSERVO-JE MR-JE-100A, Instruction Manual

Page: 244 / 310

8. TROUBLESHOOTING
8 - 23
Alarm No.: 8E Name: USB communication error
Alarm content A communication error occurred between servo amplifier and a personal computer, etc.
Display Detail name Cause Check method Check result Action
8E.5 (1) The transmitted data
number is out of
specifications.
Check the data number
at the time of
transmission. The transmitted data
number is out of
specifications. Correct the transmission
data. USB
communication
data number
error
The transmitted data
number is within
specifications. Check (2).
(2) The communication
protocol is failure.
It is not conforming. Modify the transmission
data according to the
communication protocol. Check if transmission
data conforms the
communication protocol.
It is conforming. Check (3).
(3) The setting of the
personal computer, etc.
is incorrect.
Check the setting of the
personal computer, etc. It is incorrect. Review the settings.
Alarm No.: 88888 Name: Watchdog
Alarm content A part such as CPU is malfunctioning.
Display Detail name Cause Check method Check result Action
8888._ Watchdog (1) A part in the servo
amplifier is failure.
Replace the servo
amplifier, and then check
the repeatability. It is not repeatable. Replace the servo
amplifier.