Mitsubishi fault codes

Fault codes

10 Undervoltage
12 Memory alarm 1
13 Clock alarm
14 Watch dog
15 Memory alarm 2
16 Encoder alarm
1A Motor combination error
1A.1 Servo motor combination error 1
1A.4 Servo motor combination error 2
1E Encoder initial communication error 2
1E.1 Encoder malfunction
1F Encoder combination error
28 Full closed encoder error 2
2A Full closed encoder error 1
2B Encoder counter error
3A.1 Inrush current suppression circuit error
3E.1 Operation mode error
3E.6 Operation mode switch error
42 Full closed control error
52.6 Excess droop pulse during servo-off
61.1 Point table setting range error
64 Home position return incomplete
6A MC drive circuit error
6B Inrush current suppression circuit error
6C Main circuit error
72 Option unit communication error
76 Option unit ID error
7E Overload 1
7F Overload 2
88888 Monitoring fault
8A Serial communication time-out error
8D CC-Link alarm
8E Serial communication error
90 Zeroing incomplete
90.1 Home position return incomplete
92 Open battery cable warning
92.3 Battery degradation
96 Zero setting error
97 Program operation disable
97.2 Next station position warning
98 Software limit warning
98.1 Forward rotation-side software stroke limit reached
98.2 Reverse rotation-side software stroke limit reached
99.1 Forward rotation stroke end off
99.2 Reverse rotation stroke end off
9B.1 Excess droop pulse 1 warning
9B.3 Excess droop pulse 2 warning
9D CC-Link warning 1
9E CC-Link warning 2
9F Battery warning
9F.1 Low battery
AL.010 Insufficient voltage
AL.011 Switch setting error
AL.012 Memory error 1 (RAM)
AL.013 CPU fault
AL.014 Control processing fault
AL.016 Encoder initial communication error 1
AL.017 Circuit board fault
AL.019 Memory error 3
AL.01A Servo motor combination fault
AL.01B Protection coordination fault
AL.01E Encoder initial communication error 2
AL.01F Encoder initial communication error 3
AL.020 Encoder normal communication error 1
AL.021 Encoder normal communication error 2
AL.024 Main circuit fault
AL.025 Absolute position lost
AL.027 Initial magnetic pole detection fault
AL.028 Linear encoder fault 2
AL.02A Linear encoder fault 1
AL.02B Encoder count fault
AL.030 Regeneration fault
AL.031 Overspeed
AL.032 Overcurrent
AL.033 Overvoltage
AL.034 SSCNET receive fault 1
AL.035 Command frequency error
AL.036 SSCNET receive fault 2
AL.037 Parameter error
AL.03A Inrush current limiting circuit fault
AL.03D Inter-drive communication parameter setting error
AL.03E Operating mode fault
AL.042 Servo control fault
AL.045 Main circuit component overheat
AL.046 Servo motor overheat
AL.047 Cooling fan fault
AL.050 Overload 1
AL.051 Overload 2
AL.052 Deviation too large
AL.054 Vibration detection fault
AL.056 Forced stop fault
AL.061 Operating fault
AL.063 STO timing fault
AL.066 Encoder init communication fault (safety monitoring)
AL.067 Encoder normal communication fault 1 (safety monitoring)
AL.068 STO diagnosis fault
AL.069 Command error
AL.070 Load-side encoder initial communication error 1
AL.071 Load-side encoder regular communication error 1
AL.072 Load-side encoder regular communication error 2
AL.076 Machine-side encoder fault
AL.082 Main slave run fault 1
AL.086 Network communication error
AL.088 Watchdog 1
AL.08A Serial communication timeout
AL.08E Serial communication error
AL.08F Alarm for 2-digit alarm number display
AL.090 Home reset not complete warning
AL.091 Servo amplifier overheat warning
AL.092 Battery open warning
AL.093 ABS data transfer warning
AL.095 STO warning
AL.096 Home setting error warning
AL.098 Software limit warning
AL.099 Travel limit warning
AL.09B Excessive deviation warning
AL.09C Converter warning
AL.09E Network warning
AL.09F Battery warning
AL.0E0 Excessive regeneration warning
AL.0E1 Overload warning 1
AL.0E2 Servo motor overheat warning
AL.0E3 Absolute position count warning
AL.0E4 Parameter warning
AL.0E5 ABS timeout warning
AL.0E6 Servo forced stop warning
AL.0E7 Controller emergency stop warning
AL.0E8 Cooling fan speed drop warning
AL.0E9 Main circuit OFF warning
AL.0EA ABS servo ON warning
AL.0EB Other axis fault warning
AL.0EC Overload warning 2
AL.0ED Output power exceed warning
AL.0EF Retreat-side stop warning
AL.0F0 Tough Drive warning
AL.0F2 Drive recorder warning
AL.0F3 Vibration detection warning
AL.0F4 Positioning warning
AL.0F7 Mechanical diagnosis warning
AL.0FE Warning number 2-digit display warning
AL.10 Undervoltage
AL.10.1 Control circuit supply voltage insufficient
AL.10.2 Main circuit supply voltage insufficient
AL.11 Switch setting error
AL.11.1 Axis number/station number setting error
AL.11.2 Invalid axis setting error
AL.118 Encoder diagnostics
AL.119 Memory error 4
AL.11A Manufacturer setting error
AL.11B Protection coordination connection fault
AL.11D Initial setting parameter error
AL.12 Memory error 1
AL.12.1 RAM fault 1
AL.12.2 RAM fault 2
AL.12.3 RAM fault 3
AL.12.4 RAM fault 4
AL.12.5 RAM fault 5
AL.12.6 RAM fault 6
AL.13 Clock fault
AL.13.1 Control clock fault 1
AL.13.2 Control clock fault 2
AL.13.3 Control clock fault 3
AL.130 Regeneration fault 2
AL.139 Phase loss
AL.13D Inter-drive communication network setting error
AL.14 Control processing fault
AL.14.1 Control processing fault 1
AL.14.2 Control processing fault 2
AL.14.3 Control processing fault 3
AL.14.4 Control processing fault 4
AL.14.5 Control processing fault 5
AL.14.6 Control processing fault 6
AL.14.7 Control processing fault 7
AL.14.8 Control processing fault 8
AL.14.9 Control processing fault 9
AL.14.A Control processing fault 10
AL.14.B Control processing fault 11
AL.14.C Control processing fault 12
AL.14.D Control processing fault 13
AL.15 Memory error 2
AL.15.1 EEPROM fault at power-on
AL.15.2 EEP-ROM fault during run
AL.15.4 Home information read error
AL.16 Encoder fault 1
AL.16.1 Encoder init communication: receive data error 1
AL.16.2 Encoder init communication: receive data error 2
AL.16.3 Encoder init communication: receive data error 3
AL.16.4 Encoder init communication: encoder error
AL.16.5 Encoder init communication: transmit data error 1
AL.16.6 Encoder init communication: transmit data error 2
AL.16.7 Encoder init communication: transmit data error 3
AL.16.8 Encoder init communication: encoder not supported
AL.16.A Encoder init communication: processing error 1
AL.16.B Encoder init communication: processing error 2
AL.16.C Encoder init communication: processing error 3
AL.16.D Encoder init communication: processing error 4
AL.16.E Encoder init communication: processing error 5
AL.16.F Encoder init communication: processing error 6
AL.168 STO function fault
AL.16A Master-slave simultaneous stop fault
AL.17 Circuit board fault
AL.17.1 Circuit board fault 1
AL.17.3 Circuit board fault 2
AL.17.4 Circuit board fault 3
AL.17.5 Circuit board fault 4
AL.17.6 Circuit board fault 5
AL.17.7 Circuit board fault 7
AL.17.8 Circuit board fault 6
AL.17.9 Circuit board fault 8
AL.17A Machine-side linear encoder fault 1
AL.182 Inter-drive communication error
AL.186 Network communication error 2
AL.188 Watchdog 2
AL.19 Memory error 3
AL.19.1 Flash-ROM fault 1
AL.19.2 Flash-ROM fault 2
AL.19.3 Flash-ROM fault 3
AL.19.4 Flash-ROM fault 4
AL.19.5 Flash-ROM fault 5
AL.19D IP address setting change warning
AL.19E Network warning 2
AL.1A Motor combination fault
AL.1A.1 Servo motor combination fault 1
AL.1A.2 Servo motor control mode combination fault
AL.1A.4 Servo motor combination fault 2
AL.1B Converter fault
AL.1B.1 Converter module fault
AL.1BD Inter-drive communication warning
AL.1E Encoder initial communication error 2
AL.1E.1 Encoder fault
AL.1E.2 Machine-side encoder fault
AL.1E9 Phase loss warning
AL.1EA Master-slave simultaneous stop warning
AL.1EB Manufacturer setting error
AL.1F Encoder initial communication error 3
AL.1F.1 Encoder not supported
AL.1F.2 Machine-side encoder not supported
AL.1F6 Manufacturer setting error
AL.1F8 Memory warning 1
AL.20 Encoder fault 2
AL.20.1 Encoder normal communication: receive data error 1
AL.20.2 Encoder normal communication: receive data error 2
AL.20.3 Encoder normal communication: receive data error 3
AL.20.5 Encoder normal communication: transmit data error 1
AL.20.6 Encoder normal communication: transmit data error 2
AL.20.7 Encoder normal communication: transmit data error 3
AL.20.9 Encoder normal communication: receive data error 4
AL.20.A Encoder normal communication: receive data error 5
AL.21 Encoder normal communication error 2
AL.21.1 Encoder data error 1
AL.21.2 Encoder data update error
AL.21.3 Encoder data waveform error
AL.21.4 No signal fault in encoder
AL.21.5 Encoder hardware fault 1
AL.21.6 Encoder hardware fault 2
AL.21.9 Encoder data error 2
AL.24 Main circuit fault
AL.24.1 Hardware detection circuit ground fault detection
AL.24.2 Software detection circuit ground fault detection
AL.25 Absolute position lost
AL.25.1 Servo motor encoder absolute position lost
AL.25.2 Scale measurement encoder absolute position lost
AL.27 Initial magnetic pole detection fault
AL.27.1 Abnormal end during initial magnetic pole detection
AL.27.2 Timeout error during initial magnetic pole detection
AL.27.3 Limit switch error during initial magnetic pole detection
AL.27.4 Inference error during initial magnetic pole detection
AL.27.5 Position deviation error during initial magnetic pole detection
AL.27.6 Speed deviation error during initial magnetic pole detection
AL.27.7 Current error during initial magnetic pole detection
AL.28 Linear encoder fault
AL.28.1 Linear encoder environmental fault
AL.2A Linear encoder fault
AL.2A.1 Linear encoder fault 1-1
AL.2A.2 Linear encoder fault 1-2
AL.2A.3 Linear encoder fault 1-3
AL.2A.4 Linear encoder fault 1-4
AL.2A.5 Linear encoder fault 1-5
AL.2A.6 Linear encoder fault 1-6
AL.2A.7 Linear encoder fault 1-7
AL.2A.8 Linear encoder fault 1-8
AL.2B Encoder count fault
AL.2B.1 Encoder count fault 1
AL.2B.2 Encoder count fault 2
AL.30 Regenerative braking fault
AL.30.1 Regeneration heat amount fault
AL.30.2 Regeneration signal fault
AL.30.3 Regeneration feedback signal fault
AL.31 Overspeed
AL.31.1 Motor speed error/motor speed fault
AL.32 Overcurrent
AL.32.1 Hardware detection circuit overcurrent detection (during operation)
AL.32.2 Software overcurrent detection (during run)
AL.32.3 Hardware detection circuit overcurrent detection (stop)
AL.32.4 Software overcurrent detection (at stop)
AL.33 Overvoltage
AL.33.1 Main circuit voltage fault
AL.34 Receive fault 1
AL.34.1 SSCNET receive data error
AL.34.2 SSCNET connection connection fault
AL.34.3 SSCNET communication data error
AL.34.4 Hardware error signal detection
AL.34.5 SSCNET receive data error (safety monitoring)
AL.34.6 SSCNET communication data error (safety monitoring)
AL.35 Command pulse frequency error
AL.35.1 Command frequency error
AL.36 Receive fault 2
AL.36.1 Intermittent communication data error
AL.36.2 Intermittent communication data fault (safety monitoring)
AL.37 Parameter error
AL.37.1 Parameter setting range error
AL.37.2 Error due to parameter combination
AL.37.3 Fault due to point table setting
AL.38 MC drive circuit fault
AL.39 Program error
AL.39.1 Program error
AL.39.2 Command parameter out-of-range error
AL.39.3 Register count fault
AL.39.4 Unsupported command error
AL.3A Inrush current limiting circuit fault
AL.3A.1 Inrush current suppression fault
AL.3D Inter-drive communication parameter setting error
AL.3D.1 Slave-side inter-drive communication parameter combination error
AL.3D.2 Master-side inter-drive communication parameter combination error
AL.3E Operating mode fault
AL.3E.1 Operating mode fault
AL.3E.6 Operating mode switchover fault
AL.3E.8 MR-D30 combination fault
AL.41 Forced stop 2
AL.42 Servo control error (linear servo or direct-drive motor)
AL.42.1 Servo control error due to position deviation
AL.42.2 Servo control fault due to speed deviation
AL.42.3 Servo control fault due to torque/thrust deviation
AL.42.8 Full closed-loop control error due to position deviation
AL.42.9 Full closed-loop control fault due to speed deviation
AL.42.A Full closed-loop control fault due to position deviation on command stop
AL.45 Main circuit component overheat
AL.45.1 Main circuit component temperature fault 1
AL.45.2 Main circuit component temperature fault 2
AL.46 Servo motor overheat
AL.46.1 Servo motor temperature fault 1
AL.46.2 Servo motor temperature fault 2
AL.46.3 Thermistor not connection fault
AL.46.4 Thermistor circuit fault
AL.46.5 Servo motor temperature fault 3
AL.46.6 Servo motor temperature fault 4
AL.47 Cooling fan alarm
AL.47.1 Cooling fan stop fault
AL.47.2 Cooling fan speed drop fault
AL.50 Overload 1
AL.50.1 Thermal overload fault 1 during run
AL.50.2 Thermal overload fault 2 during run
AL.50.3 Thermal overload fault 4 during run
AL.50.4 Thermal overload error 1 at stop
AL.50.5 Thermal overload error 2 at stop
AL.50.6 Thermal overload error 4 at stop
AL.51 Overload 2
AL.51.1 Thermal overload fault 3 during run
AL.51.2 Thermal overload error 3 at stop
AL.510 Voltage diagnostic fault (safety monitoring function)
AL.512 Memory fault 1 (RAM) (safety monitoring function)
AL.514 Control processing fault (safety monitoring function)
AL.515 Memory fault 2 (ROM) (safety monitoring function)
AL.516 Encoder init communication fault 1 (safety monitoring)
AL.517 Circuit board fault (safety monitoring function)
AL.518 Sync control error (safety monitoring)
AL.519 Memory fault 3 (Flash-ROM) (safety monitoring function)
AL.52 Deviation too large
AL.52.1 Residual pulses too large 1
AL.52.3 Residual pulses too large 2
AL.52.4 Error too large at zero torque limit
AL.52.5 Residual pulses too large 3
AL.52.6 Servo OFF deviation pulse too large
AL.520 Encoder normal communication diagnostic fault 1 (safety monitoring)
AL.521 Encoder normal communication diagnostic fault 2 (safety monitoring)
AL.522 Encoder normal communication diagnostic fault 3 (safety monitoring)
AL.523 Encoder normal communication diagnostic fault 4 (safety monitoring)
AL.524 Encoder normal communication diagnostic fault 5 (safety monitoring)
AL.525 Encoder normal communication diagnostic fault 6 (safety monitoring)
AL.526 Encoder normal communication diagnostic fault 7 (safety monitoring)
AL.527 Encoder normal communication diagnostic fault 8 (safety monitoring)
AL.528 Encoder normal communication diagnostic fault 9 (safety monitoring)
AL.529 Encoder data fault (safety monitoring)
AL.52A Position feedback error (safety monitoring)
AL.52B Encoder overtemperature fault (safety monitoring)
AL.537 Parameter setting range error (safety monitoring)
AL.53A Parameter checksum error (safety monitoring)
AL.54 Oscillation detection fault
AL.54.1 Oscillation detection fault
AL.540 Internal diagnosis error 1 (safety monitoring)
AL.541 Internal diagnosis error 2 (safety monitoring)
AL.542 Internal diagnosis error 3 (safety monitoring)
AL.543 Internal diagnosis error 4 (safety monitoring)
AL.544 Temperature diagnostic fault (safety monitoring function)
AL.545 Internal diagnosis error 5 (safety monitoring)
AL.546 Internal diagnosis error 6 (safety monitoring)
AL.547 Internal diagnosis error 7 (safety monitoring)
AL.549 Internal diagnosis error 8 (safety monitoring)
AL.54A Internal diagnosis error 9 (safety monitoring)
AL.54D Internal diagnosis error 10 (safety monitoring)
AL.54F Safety software fault (safety monitoring function)
AL.550 Internal diagnosis error 11 (safety monitoring)
AL.551 Internal diagnosis error 12 (safety monitoring)
AL.552 Internal diagnosis error 13 (safety monitoring)
AL.553 Input soft-element diagnostic fault (safety monitoring)
AL.554 Input soft-element internal diagnostic fault (safety monitoring)
AL.555 Output soft-element diagnostic fault 1 (safety monitoring)
AL.556 Output soft-element diagnostic fault 2 (safety monitoring)
AL.557 Input soft-element inconsistency detection (safety monitoring)
AL.56 Forced stop fault
AL.56.2 Overspeed on forced stop
AL.56.3 Predicted deceleration distance exceeded on forced stop
AL.56.4 Forced stop start fault
AL.560 Stop error (safety monitoring)
AL.561 Safe speed monitoring fault 1 (safety monitoring function)
AL.562 Safe speed monitoring fault 2 (safety monitoring function)
AL.563 Deceleration monitoring error (safety monitoring)
AL.564 Incremental monitoring fault (safety monitoring function)
AL.565 Direction monitoring fault (safety monitoring function)
AL.568 Torque monitoring fault 1 (safety monitoring)
AL.569 Torque monitoring fault 2 (safety monitoring)
AL.580 Safety communication setting fault (safety monitoring function)
AL.581 Safety communication fault 1 (safety monitoring function)
AL.582 Safety communication fault 2 (safety monitoring function)
AL.583 Safety communication fault 3 (safety monitoring function)
AL.584 FSoE communication setting fault (safety monitoring)
AL.585 FSoE communication fault 1 (safety monitoring)
AL.586 FSoE communication fault 2 (safety monitoring)
AL.587 FSoE communication fault 3 (safety monitoring)
AL.588 CIP Safety communication fault 1 (safety monitoring)
AL.589 CIP Safety communication fault 2 (safety monitoring)
AL.58A CIP Safety communication fault 3 (safety monitoring)
AL.595 STO command OFF warning (safety monitoring)
AL.596 SS1 timeout warning (safety monitoring)
AL.59D Internal diagnosis warning (safety monitoring)
AL.5E0 Safety input soft-element fixed diagnostic not completed warning
AL.5E1 Test mode setting inconsistency warning (safety monitoring function)
AL.5E2 Safety communication warning (safety monitoring function)
AL.5E6 SS1 command OFF warning (safety monitoring)
AL.5F0 Safety communication warning 2 (safety monitoring function)
AL.61 Operating fault
AL.61.1 Point table setting range error
AL.62 Frequency fault
AL.63 STO timing fault
AL.63.1 STO1 OFF
AL.63.2 STO2 OFF
AL.63.5 According to STO of functional safety module
AL.64 Functional safety module setting error
AL.64.1 STO input fault
AL.64.2 Compatibility mode setting error
AL.64.3 Operating mode setting error
AL.65 Functional safety module connection fault
AL.65.1 Functional safety module communication error 1
AL.65.2 Functional safety module communication error 2
AL.65.3 Functional safety module communication error 3
AL.65.4 Functional safety module communication error 4
AL.65.5 Functional safety module communication error 5
AL.65.6 Functional safety module communication error 6
AL.65.7 Functional safety module communication error 7
AL.65.8 Functional safety module cut-off signal fault 1
AL.65.9 Functional safety module cut-off signal fault 2
AL.66 Encoder init communication fault (safety monitoring)
AL.66.1 Encoder init communication: receive data fault 1 (safety monitoring)
AL.66.2 Encoder init communication: receive data fault 2 (safety monitoring)
AL.66.3 Encoder init communication: receive data fault 3 (safety monitoring)
AL.66.7 Encoder init communication: transmit data fault 1 (safety monitoring)
AL.66.9 Encoder init communication: processing fault 1 (safety monitoring)
AL.67 Encoder normal communication fault 1 (safety monitoring)
AL.67.1 Encoder normal communication: receive data fault 1 (safety monitoring)
AL.67.2 Encoder normal communication: receive data fault 2 (safety monitoring)
AL.67.3 Encoder normal communication: receive data fault 3 (safety monitoring)
AL.67.4 Encoder normal communication: receive data fault 4 (safety monitoring)
AL.67.7 Encoder normal communication: transmit data fault 1 (safety monitoring)
AL.68 STO diagnosis fault
AL.68.1 STO signal mismatch fault
AL.69 Command error
AL.69.1 Command exceeded fault on forward-side software limit detection
AL.69.2 Command exceeded during reverse soft-limit detection
AL.69.3 Command exceeded fault on forward travel end detection
AL.69.4 Command exceeded during reverse travel end detection
AL.69.5 Command exceeded during upper travel limit detection
AL.69.6 Command exceeded during lower travel limit detection
AL.70 Load-side encoder initial communication error 1
AL.70.1 Machine-side encoder initial communication receive data error 1
AL.70.2 Machine-side encoder initial communication receive data error 2
AL.70.3 Machine-side encoder initial communication receive data error 3
AL.70.4 Machine-side encoder initial communication encoder error
AL.70.5 Machine-side encoder initial communication send data error 1
AL.70.6 Machine-side encoder initial communication send data error 2
AL.70.7 Machine-side encoder initial communication send data error 3
AL.70.8 Machine-side encoder initial communication encoder not supported
AL.70.A Machine-side encoder initial communication processing error 1
AL.70.B Machine-side encoder initial communication processing error 2
AL.70.C Machine-side encoder initial communication processing error 3
AL.70.D Machine-side encoder initial communication processing error 4
AL.70.E Machine-side encoder initial communication processing error 5
AL.70.F Machine-side encoder initial communication processing error 6
AL.71 Load-side encoder regular communication error 1
AL.71.1 Machine-side encoder cyclic communication receive data error 1
AL.71.2 Machine-side encoder cyclic communication receive data error 2
AL.71.3 Machine-side encoder cyclic communication receive data error 3
AL.71.5 Machine-side encoder cyclic communication send data error 1
AL.71.6 Machine-side encoder cyclic communication send data error 2
AL.71.7 Machine-side encoder cyclic communication send data error 3
AL.71.9 Machine-side encoder cyclic communication receive data error 4
AL.71.A Machine-side encoder cyclic communication receive data error 5
AL.72 Load-side encoder regular communication error 2
AL.72.1 Machine-side encoder data error 1
AL.72.2 Machine-side encoder data update error
AL.72.3 Machine-side encoder data waveform error
AL.72.4 Machine-side encoder no-signal fault
AL.72.5 Machine-side encoder hardware fault 1
AL.72.6 Machine-side encoder hardware fault 2
AL.72.9 Machine-side encoder data error 2
AL.73 Regeneration fault
AL.74 Option card fault 1
AL.74.1 Option card fault 1
AL.74.2 Option card fault 2
AL.74.3 Option card fault 3
AL.74.4 Option card fault 4
AL.74.5 Option card fault 5
AL.75 Option card fault 2
AL.75.3 Option card connection fault
AL.75.4 Option card not connected
AL.76 Switch setting error
AL.77 Main circuit component overheat
AL.79 Functional safety module diagnosis fault
AL.79.1 Functional safety module supply voltage fault
AL.79.2 Functional safety module internal fault
AL.79.3 Functional safety module temperature fault
AL.79.4 Servo amplifier fault
AL.79.5 Input soft-element fault
AL.79.6 Output soft-element fault
AL.79.7 Input signal mismatch fault
AL.79.8 Position feedback stuck fault
AL.7A Parameter setting error (safety monitoring)
AL.7A.1 Parameter checksum error (safety monitoring)
AL.7A.2 Parameter setting range error (safety monitoring)
AL.7A.3 Error due to parameter combination (safety monitoring)
AL.7A.4 Functional safety module combination error (safety monitoring)
AL.7B Encoder diagnostic fault (safety monitoring)
AL.7B.1 Encoder diagnostic fault 1 (safety monitoring)
AL.7B.2 Encoder diagnostic fault 2 (safety monitoring)
AL.7B.3 Encoder diagnostic fault 3 (safety monitoring)
AL.7B.4 Encoder diagnostic fault 4 (safety monitoring)
AL.7C Functional safety module communication diagnosis error (safety monitoring)
AL.7C.1 Functional safety module communication setting error (safety monitoring)
AL.7C.2 Functional safety module communication data error (safety monitoring)
AL.7D Safety monitoring fault
AL.7D.1 Stop monitoring fault
AL.7D.2 Speed monitoring fault
AL.82 Main slave run fault 1
AL.82.1 Main slave run fault 1
AL.84 Network module initialization error
AL.84.1 Network module not detection error
AL.84.2 Network module initialization error 1
AL.84.3 Network module initialization error 2
AL.85 Network module error
AL.85.1 Network module error 1
AL.85.2 Network module error 2
AL.85.3 Network module error 3
AL.86 Network communication error
AL.86.1 Network communication error 1
AL.86.2 Network communication error 2
AL.86.3 Network communication error 3
AL.86.4 Network communication error 4
AL.86.5 Network communication error 5
AL.88 Watchdog 8888._ watchdog
AL.888 Watchdog 1
AL.8A Serial communication timeout
AL.8A.1 USB/serial communication timeout error
AL.8A.2 Modbus RTU communication timeout error
AL.8C Network module communication error
AL.8D CC-Link IE communication error
AL.8D.1 CC-Link IE communication error 1
AL.8D.2 CC-Link IE communication error 2
AL.8D.3 Master setting error 1
AL.8D.5 Master setting error 2
AL.8D.6 CC-Link IE communication error 3
AL.8D.7 CC-Link IE communication error 4
AL.8D.8 CC-Link IE communication error 5
AL.8D.9 Sync fault 1
AL.8D.A Sync fault 2
AL.8E Serial communication error
AL.8E.1 USB/serial communication receive error
AL.8E.2 USB/serial communication checksum error
AL.8E.3 USB/serial communication character error
AL.8E.4 USB/serial communication command error
AL.8E.5 USB/serial communication data number error
AL.8E.6 Modbus RTU communication receive error
AL.8E.7 Modbus RTU communication frame error
AL.8E.8 Modbus RTU communication CRC error
AL.90 Home reset not complete warning
AL.90.1 Home reset not complete
AL.90.2 Home reset abnormally ended
AL.90.5 Z-phase not passed
AL.91 Servo amplifier overheat warning
AL.91.1 Main circuit component overheat warning
AL.92 Battery cable open warning
AL.92.1 Encoder battery open warning
AL.92.3 Battery degraded
AL.93 ABS data transfer warning
AL.93.1 Magnetic pole detection incomplete at ABS data transfer request warning
AL.95 STO warning
AL.95.1 STO1 OFF detection fault
AL.95.2 STO2 OFF detection fault
AL.95.3 STO warning 1 (safety monitoring)
AL.95.4 STO warning 2 (safety monitoring)
AL.95.5 STO warning 3 (safety monitoring)
AL.96 Home setting error alarm
AL.96.1 In-position warning when setting home
AL.96.2 Home setting command input warning
AL.96.3 Home setting servo OFF warning
AL.96.4 Magnetic pole detection incomplete warning when setting home
AL.97 Positioning command warning
AL.97.1 Program not executable warning
AL.97.2 Feed station position warning
AL.98 Software limit warning
AL.98.1 Forward-side software travel limit reached
AL.98.2 Reverse-side software travel limit reached
AL.99 Travel limit warning
AL.99.1 Forward travel end OFF
AL.99.2 Reverse travel end OFF
AL.99.4 Upper travel limit OFF
AL.99.5 Lower travel limit OFF
AL.9A Option module input data error warning
AL.9A.1 Option module input data sign error
AL.9A.2 Option module BCD input data error
AL.9B Excessive deviation warning
AL.9B.1 Residual pulses too large 1 warning
AL.9B.3 Residual pulses too large 2 warning
AL.9B.4 Error too large at zero torque limit warning
AL.9C Converter warning
AL.9C.1 Converter module warning
AL.9D CC-Link IE warning 1
AL.9D.1 Station number switch change warning
AL.9D.2 Master setting warning
AL.9D.3 Duplicate station number warning
AL.9D.4 Station number mismatch warning
AL.9E CC-Link IE warning 2
AL.9E.1 CC-Link IE communication warning
AL.9F Battery warning
AL.9F.1 Battery voltage insufficient
AL.9F.2 Battery degradation warning
AL.DB Encoder initial communication error
AL.E0 Excessive regeneration energy alarm
AL.E0.1 Excessive regeneration warning
AL.E1 Overload alarm
AL.E1.1 Thermal overload warning 1 during run
AL.E1.2 Thermal overload warning 2 during run
AL.E1.3 Thermal overload warning 3 during run
AL.E1.4 Thermal overload warning 4 during run
AL.E1.5 Thermal overload warning 1 at stop
AL.E1.6 Thermal overload warning 2 at stop
AL.E1.7 Thermal overload warning 3 at stop
AL.E1.8 Thermal overload warning 4 at stop
AL.E2 Servo motor overheat warning
AL.E2.1 Servo motor temperature warning
AL.E3 Absolute position counter alarm
AL.E4 Parameter warning
AL.E5 ABS timeout alarm
AL.E6 Servo emergency stop alarm
AL.E7 Controller emergency stop warning
AL.E8 Cooling fan speed too low warning
AL.E9 Main circuit open alarm
AL.EA ABS servo ON alarm
AL.EB Other axis fault warning
AL.EC Overload warning 2
AL.ED Output power too large warning
AL.F0 Tough Drive warning
AL.F2 Drive recorder write error warning
AL.F3 Vibration detection result
AL.F4 Positioning warning
AL.F5 Simple cam: cam data write error warning
AL.F6 Simple cam: cam control warning
AL.F7 Mechanical diagnosis warning
CF Run continuing when communication fault occurred
CP Parameter copy
CPU CPU fault
Cor Corrosion alarm
DIP IP address duplicate
E.0HT External thermal relay tripped
E.1 Option fault
E.10 Inverter output fault
E.11 Reverse deceleration fault
E.13 Internal circuit fault
E.15 Tuning speed detection fault
E.16 Sequence function user-defined error
E.1~E.3 Option fault
E.2 Option error (error 2)
E.3 Option error (error 3)
E.5 CPU fault
E.6 Main circuit power supply detection fault
E.7 CPU fault
E.8 Input power supply fault 1
E.AIE Analog input fault
E.BE Braking transistor fault
E.CDO Output current detection level exceeded
E.CMB Circuit board combination fault
E.CPU CPU fault
E.CTE Operator panel power output short circuit
E.D Heatsink overheat
E.E Momentary power loss
E.E10 Inverter output error *2
E.E6 CPU fault
E.E7 CPU fault
E.ECA No signal from orientation encoder
E.ECT Open detection fault
E.EF Output external fault
E.EHR Ethernet communication error
E.EP Encoder phase fault
E.F Undervoltage
E.FIN Heatsink overheat
E.FN Fan fault
E.G Input phase loss
E.GF Output-side ground fault overcurrent
E.H External overheat tripped
E.IAH Internal temperature error (IP55 products only)
E.ILF Input phase loss
E.IOH Inrush current limiting circuit fault
E.IPF Momentary power-loss protection (note 2)
E.IPT Momentary power loss protection
E.J PU disconnected
E.K Retry count exceeded
E.LCI 4 mA input loss
E.LDN Lower limit fault detection
E.LF Output under phase
E.LUP Upper limit fault detection
E.M DC24V power supply output short circuit
E.MB1 Brake sequence control error
E.MB1~7 Brake release fault
E.MB4~7 Brake sequence control error
E.MB7 Brake sequence error
E.MP Magnetic pole position unknown
E.N Inrush current limiting circuit fault
E.OA Acceleration fault
E.OC1 Overcurrent cutoff during acceleration
E.OC2 Overcurrent cutoff at constant speed
E.OC3 Overcurrent cutoff during deceleration
E.OD Excessive position deviation
E.ODS Excessive speed deviation detection
E.OHT External thermal relay tripped (note 3)
E.OLT Stall prevention
E.OP1 Communication option error
E.OP1~OP3 Option socket fault
E.OP3 Communication option error
E.OPT Option alarm
E.OS Overspeed
E.OSD Excessive speed deviation detection
E.OV1 Regenerative overvoltage trip during acceleration
E.OV2 Regenerative overvoltage trip at constant speed
E.OV3 Regenerative overvoltage trip during deceleration/stop
E.OVT Overvoltage trip
E.P24 DC 24V power supply output short circuit
E.PA1 Parallel-run slave 1 fault
E.PA2 Parallel-run slave 2 fault
E.PBT Internal circuit fault
E.PCH PID pre-charge fault
E.PE Parameter memory factor error
E.PE2 Parameter memory device fault (main circuit board)
E.PE6 Internal component fault
E.PID PID signal fault
E.PTC PTC thermistor start
E.PUE PU detachment detected
E.Q Communication option error
E.RET Retry count exceeded
E.SAF Safety circuit fault
E.SCF Output short circuit fault
E.SER Communication error (host)
E.SOT Misalignment detection fault
E.THC Rectifier overload trip (electronic thermal protection) *1
E.THM Motor overload trip (electronic overcurrent protection) (note 1)
E.THT Inverter overload trip (electronic overcurrent protection) (Note 1)
E.USB USB communication error
E.UVT Undervoltage
E0 Excessive regenerative load warning
E0.1 Excessive regeneration warning
E1 Overload warning 1
E1.1 Thermal overload warning 1 during operation
E1.2 Thermal overload warning 2 during operation
E1.3 Thermal overload warning 3 during operation
E1.4 Thermal overload warning 4 during operation
E1.5 Thermal overload warning 1 during a stop
E1.6 Thermal overload warning 2 during a stop
E1.7 Thermal overload warning 3 during a stop
E1.8 Thermal overload warning 4 during a stop
E2 Direct drive motor overheat warning
E3 Absolute position counter warning
E3.1 Multi-revolution counter travel distance excess warning
E3.2 Absolute position counter warning
E3.5 Encoder absolute positioning counter warning
E4 Parameter warning
E4.1 Parameter setting range error warning
E5 ABS time-out warning
E5.1 Time-out during ABS data transfer
E5.2 ABSM off during ABS data transfer
E5.3 SON off during ABS data transfer
E6 Servo forced stop warning
E6.1 Forced stop warning
E7 Controller forced stop warning
E7.1 Controller forced stop warning
E8 Cooling fan speed reduction warning
E8.1 Decreased cooling fan speed warning
E8.2 Cooling fan stop
E9 Instantaneous power failure warning
E9.1 Servo-on signal on during main circuit off
E9.2 Bus voltage drop during low speed operation
E9.3 Ready-on signal on during main circuit off
E9.4 Converter unit forced stop
EA ABS servo-on warning
EA.1 ABS servo-on warning
EB Excessive regeneration warning
EB.1 The other axis error warning
EC Overload warning 2
EC.1 Overload warning 2
ED Emergency drive in progress
ED.1 Output watt excess warning
EE Cooling fan speed reduction warning
EF Reverse-side stop warning
EF.1 Reverse-side stop warning
EHR Ethernet communication error
EV External 24V power supply tripped
Er1 Write-protect error
Er1~4 Parameter write error
Er1~Er4 Parameter write error
Er2 Write error during operation
Er3 Calibration fault
Er4 Mode specification fault
Er8 USB storage device operation error
Err. Inverter reset
F0 Tough drive warning
F0.1 Instantaneous power failure tough drive warning
F0.3 Vibration tough drive warning
F2.1 Drive recorder - Area writing time-out warning
F2.2 Drive recorder - Data miswriting warning
F3.1 Oscillation detection warning
F4.4 Target position setting range error warning
F4.6 Acceleration time constant setting range error warning
F4.7 Deceleration time constant setting range error warning
F4.9 Home position return type error warning
F5.1 Cam data - Area writing time-out warning
F5.2 Cam data - Area miswriting warning
F5.3 Cam data checksum error
F6.2 Cam axis feed current value restoration failed
F6.3 Cam unregistered error
F6.4 Cam control data setting range error
F6.5 Cam No. external error
F6.6 Cam control inactive
F7.1 Vibration failure prediction warning
F7.2 Friction failure prediction warning
F7.3 Total travel distance failure prediction warning
FIN Heatsink overheat
FL Input flow drop alarm (liquid-cooled types only)
FN Fan fault
FN2 Internal air circulation fan fault (IP55 products only)
GF Ground fault overcurrent at start
HOLD Operator panel locked
HP1 Homing fault
HP2 Home restore not complete alarm
HP3 Home restore parameter setting alarm
IH Inrush current limiting resistor overheat
IP IP address error
LDF Load error alarm
LOCD Password setting error
LP Travel limit alarm
MT Maintenance signal output
MT1 Maintenance timer 1–3
OL Stall prevention (overcurrent); during acceleration if motor current exceeds 150% of inverter rated output current (note 4)
OLC Stall prevention (overcurrent)
OLT Stall prevention (overload)
OLV Stall prevention (overvoltage)
OPT Communication error
PE Parameter memory error
PS PU stop
PUE PU detached
RB Regenerative braking pre-alarm
RD Backing up
RET Retry count exceeded
SA Safety stop
SE Parameter error setting
SL Speed limit display (output during speed limiting)
SLV.1 Parallel-run slave 1
SLV.2 Parallel-run slave 2
TH Electronic overcurrent protection pre-alarm
THM Motor overload trip (electronic overcurrent protection)
THT Inverter overload trip (electronic overcurrent protection)
UF USB host fault
UV Insufficient voltage
WR Restoring
oL Stall prevention (overvoltage)
rE1 Parameter read error
rE2 Parameter write error
rE3 Parameter check error
rE4 Model fault
rE5 File fault
rE6 File fault
rE7 File count fault
rE8 No sequence control project file