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Chapter 16 Troubleshooting
(3) MR-J3W- B
Classification
of errors
Error code
Servo amplifier
LED display
Name Details name Remarks
10.1 Voltage drop in the control power
2010
10.2
Undervoltage
Voltage drop in the main circuit power
11.1 Rotary switch setting error
11.2 DIP switch setting error
11.3
Rotation/linear motor selection switch
setting error
2011
11.4
Switch setting error
Rotation/linear motor selection switch
setting error 2
12.1 CPU built-in RAM error
12.2 CPU data RAM error
2012
12.3
Memory error 1 (RAM)
Custom IC RAM error
2013 13.1 Clock error Clock error
15.1 EEP-ROM error at power on
2015
15.2
Memory error 2 (EEP-
ROM)
EEP-ROM error during operation
16.1 Encoder receive data error 1
16.2 Encoder receive data error 2
16.3 Encoder receive data error 3
16.5 Encoder transmission data error 1
16.6 Encoder transmission data error 2
2016
16.7
Encoder initial
communication error 1
Encoder transmission data error 3
17.1 AD converter error
17.2 Current feedback data error
17.3 Custom IC error
17.4 Amplifier detection signal error
(Note)
17.5 Rotary switch error
2017
17.6
Board error
DIPSW error
19.1 Flash-ROM error 1
2019
19.2
Memory error 3 (Flash
ROM)
Flash-ROM error 2
20.1 Encoder receive data error 1
20.2 Encoder receive data error 2
20.3 Encoder receive data error 3
20.5 Encoder transmission data error 1
20.6 Encoder transmission data error 2
2020
20.7
Encoder normal
communication error 1
Encoder transmission data error 3
21.1 Encoder data error
2021
21.2
Encoder normal
communication error 2
Encoder data update error
24.1
Ground fault detected at hardware
detection circuit
2024
24.2
Main circuit error
Ground fault detected at software
detection function
Servo
amplifier
errors
2025 25.1 Absolute position erase Absolute position data erase
(Note): The details name is different when using the linear servo motors.
Refer to the "Servo amplifier Instruction Manual" for details.
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