Mitsubishi Electric MELSERVO-JE Instruction Manual page 13

1. SERVO AMPLIFIER TROUBLESHOOTING
No.
USB communication
time-out error/serial
communication time-
8A
out error/Modbus RTU
communication time-
Network module
8C
communication error
USB communication
8E communication
error/Modbus RTU
communication error
888/
88888
Note 1. After resolving the source of trouble, cool the equipment for approximately 30 minutes.
2. The following shows three stop methods of DB, EDB, and SD.
DB: Dynamic brake stop (For a servo amplifier without the dynamic brake, the servo motor coasts.)
EDB: Electronic dynamic brake stop (available with specified servo motors)
Refer to the following table for the specified servo motors. The stop method for other than the specified
servo motors is DB.
For MR-JE_A, setting [Pr. PF09] to "(_ _ _ 3)" enables the electronic dynamic brake.
SD: Forced stop deceleration
3. This is applicable when [Pr. PA04] is set to the initial value. The stop method of SD can be changed to DB using
[Pr. PA04].
4. In some controller communication status, the alarm factor may not be removed.
5. Alarm codes are outputted from the MR-JE-_A or MR-JE-_C. Refer to section 1.1 for details.
Detail
Name
No.
USB communication time-out
8A.1 error/serial communication time-
out error
Modbus RTU communication time-
8A.2
out error
out error
Network module communication
8C.1
error 1
Network module communication
8C.2
error 2
Network module communication
8C.3
error 3
Network module communication
8C.4
error 4
Network module communication
8C.5
error 5
Network module communication
8C.6
error 6
Network module communication
8C.7
error 7
USB communication receive
8E.1 error/serial communication receive
error
USB communication checksum
8E.2 error/serial communication
checksum error
USB communication character
8E.3 error/serial communication
character error
USB communication command
error/serial
8E.4 error/serial communication
command error
USB communication data number
8E.5 error/serial communication data
number error
Modbus RTU communication
8E.6
receive error
Modbus RTU communication
8E.7
message frame error
Modbus RTU communication CRC
8E.8
error
88._/
Watchdog Watchdog
8888._
Series
HG-KN HG-KN053/HG-KN13/HG-KN23/HG-KN43
HG-SN HG-SN52
Stop
method
Detail name
(Note 2,
3)
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
DB
Servo motor
1 - 6
Alarm code
Alarm deactivation
ACD2
Alarm CPU Power
reset reset cycling
(Bit 2)
0
0
0
(Note 5)
ACD1 ACD0
(Bit 1) (Bit 0)
0 0
0 0
0 0