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Error Codes
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Industrial automation error codes
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Error Codes
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MR-J4
Servo
MR-J4 — all error codes
66 codes · LS Electric
AL.11
Switch setting error
Trip — immediate stop
AL.14
Control process error
Trip — immediate stop
AL.15
Memory error 2 (EEP-ROM)
Trip — immediate stop
AL.19
Memory error 3 (Flash-ROM)
Trip — immediate stop
AL.1
Servo motor combination error
Trip — immediate stop
AL.27
Initial magnetic pole detection error
Trip — immediate stop
AL.28
Linear encoder error 2
Trip — immediate stop
AL.2
Linear encoder error 1
Trip — immediate stop
AL.36
SSCNET receive error 2
Trip — immediate stop
AL.37
Parameter error
Trip — immediate stop
AL.39
Program error
Trip — immediate stop
AL.3
Operation mode error
Trip — immediate stop
AL.47
Cooling fan error
Trip — immediate stop
AL.54
Oscillation detection
Trip — immediate stop
AL.61
Operation error
Trip — immediate stop
AL.64
Functional safety unit setting error
Trip — immediate stop
AL.66
Encoder initial communication error (safety observation function)
Trip — immediate stop
AL.67
Encoder normal communication error 1 (safety observation function)
Trip — immediate stop
AL.68
STO diagnosis error
Trip — immediate stop
AL.69
Command error
Trip — immediate stop
AL.70
Load-side encoder initial communication error 1
Trip — immediate stop
AL.71
Load-side encoder normal communication error 1
Trip — immediate stop
AL.72
Load-side encoder normal communication error 2
Trip — immediate stop
AL.74
Option card error 1
Trip — immediate stop
AL.75
Option card error 2
Trip — immediate stop
AL.79
Functional safety unit diagnosis error
Trip — immediate stop
AL.7
Parameter setting error (safety observation function)
Trip — immediate stop
AL.82
Master-slave operation error 1
Trip — immediate stop
AL.84
Network module initialization error
Trip — immediate stop
AL.85
Network module error
Trip — immediate stop
AL.86
Network communication error
Trip — immediate stop
AL.8
USB communication time-out error/serial communication time-out error/Modbus RTU
Trip — immediate stop
AL.88888
Watchdog
Trip — immediate stop
AL.90
Home position return incomplete warning
Trip — immediate stop
AL.91
Servo amplifier overheat warning
Trip — immediate stop
AL.93
ABS data transfer warning
Trip — immediate stop
AL.95
STO warning
Trip — immediate stop
AL.96
Home position setting warning
Trip — immediate stop
AL.98
Software limit warning
Trip — immediate stop
AL.9
Optional unit input data error warning
Trip — immediate stop
AL.10
Undervoltage
Trip — immediate stop
AL.12
Memory error 1 (RAM)
Critical — power cycle required
AL.13
Clock error
Trip — immediate stop
AL.16
Encoder initial communication error 1
Trip — immediate stop
AL.17
Board error
Trip — immediate stop
AL.20
Encoder normal communication error 1
Trip — immediate stop
AL.21
Encoder normal communication error 2
Trip — immediate stop
AL.24
Main circuit error (ground fault)
Trip — immediate stop
AL.25
Absolute position erased
Trip — immediate stop
AL.30
Regenerative error
Trip — immediate stop
AL.31
Overspeed
Trip — immediate stop
AL.32
Overcurrent
Trip — immediate stop
AL.33
Overvoltage
Trip — immediate stop
AL.34
SSCNET receive error 1
Trip — immediate stop
AL.35
Command frequency error
Trip — immediate stop
AL.42
Servo control error (for linear servo motor and direct drive motor)
Trip — immediate stop
AL.45
Main circuit device overheat
Trip — immediate stop
AL.46
Servo motor overheat
Trip — immediate stop
AL.50
Overload 1
Trip — immediate stop
AL.51
Overload 2
Trip — immediate stop
AL.52
Error excessive
Trip — immediate stop
AL.8A
USB comm time out
Alarm — operational, inspection needed
AL.8E
Serial comm error
Alarm — operational, inspection needed
AL.92
Battery cable disconnection warning
Trip — immediate stop
AL.E0
Overload warning
Warning — monitor
AL.E6
Servo emergency stop
Alarm — operational, inspection needed