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Mitsubishi Electric Melservo-J4 Instruction Manual

General-purpose ac servo. servo amplifier.
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General-Purpose AC Servo
Servo Amplifier Instruction Manual
(Troubleshooting)

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Troubleshooting

   Related Manuals for Mitsubishi Electric Melservo-J4

   Summary of Contents for Mitsubishi Electric Melservo-J4

  • Page 1

    General-Purpose AC Servo Servo Amplifier Instruction Manual (Troubleshooting)

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS (Please read the instructions carefully before using the equipment.) To use the equipment correctly, do not attempt to install, operate, maintain, or inspect the equipment until you have read through this Instruction Manual, Installation guide, and appended documents carefully. Do not use the equipment until you have a full knowledge of the equipment, safety information and instructions.

  • Page 4

    [To prevent electric shock, note the following] WARNING ● Before wiring or inspection, turn off the power and wait for 15 minutes or more (20 minutes or more for converter unit) until the charge lamp turns off. Then, confirm that the voltage between P+ and N- (between L+ and L- for converter unit) is safe with a voltage tester and others.

  • Page 5

    CAUTION ● Configure a circuit to turn off EM2 or EM1 when the main circuit power supply is turned off to prevent an unexpected restart of the servo amplifier (drive unit). ● To prevent malfunction, avoid bundling power lines (input/output) and signal cables of the servo amplifier (drive unit) and the converter unit together or running them in parallel to each other.

  • Page 6: About The Manual

    ABOUT THE MANUAL This Instruction Manual covers the following models. These include servo amplifiers (drive units) which have optional units.  MR-J4-_A/MR-J4-_A4/MR-J4-_A1/MR-J4-_A-RJ/MR-J4-_A4-RJ/MR-J4-_A1-RJ  MR-J4-_B/MR-J4-_B4/MR-J4-_B1/MR-J4-_B-RJ/MR-J4-_B4-RJ/MR-J4-_B1-RJ  MR-J4W_-_B  MR-J4-_B-RJ010/MR-J4-_B4-RJ010  MR-J4-03A6/MR-J4-03A6-RJ/MR-J4W2-0303B6  MR-J4-_GF/MR-J4-_GF4/MR-J4-_GF1/MR-J4-_GF-RJ/MR-J4-_GF4-RJ/MR-J4-_GF1-RJ  MR-J4-DU_A/MR-J4-DU_A4/MR-J4-DU_A-RJ/MR-J4-DU_A4-RJ  MR-J4-DU_B/MR-J4-DU_B4/MR-J4-DU_B-RJ/MR-J4-DU_B4-RJ/MR-J4-DU_B4-RJ100  MR-CV_  MR-CR55K/MR-CR55K4 The symbols in the target column mean as follows.

  • Page 7: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ..............1 ABOUT THE MANUAL .

  • Page 8: Chapter 1 Troubleshooting For Servo Amplifier (drive Unit)

    TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT) • As soon as an alarm occurs, turn SON (Servo-on) off and interrupt the power. • [AL. 37 Parameter error] and warnings (except [AL. F0 Tough drive warning]) are not recorded in the alarm history.

  • Page 9: Alarm List

    Stop system (only for MR-J4W_-_B_) This means target axis to stop when the alarm occurs. Each axis: Only alarming axis will stop. All axes: All axes will stop. Alarm code (only MR-J4-_A_(-RJ)/MR-J4-DU_A_(-RJ)) To output alarm codes, set [Pr. PD34] to "_ _ _ 1" when using an MR-J4-_A_(-RJ)/MR-J4-DU_A_(-RJ). Alarm codes are outputted by on/off of bit 0 to bit 2.

  • Page 10

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power    Control 14.1 Control process Common All axes process error...

  • Page 11

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power Encoder initial 16.1 Encoder initial   ...

  • Page 12

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power    Board error 17.1 Board error 1 Common All axes ...

  • Page 13

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power Encoder 20.1 Encoder normal    Each axis Each normal...

  • Page 14

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power    Absolute 25.1 Servo motor Each axis Each position erased...

  • Page 15

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power Regenerative 30.1 Regeneration    Common All axes error heat error...

  • Page 16

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power        SSCNET 36.1 Continuous...

  • Page 17

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power Servo control 42.1 Servo control  Each axis Each error error by position...

  • Page 18

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power    Overload 1 50.1 Thermal Each axis Each overload error 1...

  • Page 19

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power Functional 64.1 STO input error   ...

  • Page 20

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power      Encoder initial 66.1 Encoder initial communication...

  • Page 21

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power Command 69.1 Forward     ...

  • Page 22

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power    Load-side 70.7 Load-side Each axis Each encoder initial encoder initial...

  • Page 23

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power Load-side 71.6 Load-side    Each axis Each encoder encoder normal...

  • Page 24

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power      Functional 79.1 Functional safety unit safety unit...

  • Page 25

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power Encoder 7B.1 Encoder     ...

  • Page 26

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power        ...

  • Page 27

    Alarm Detail Stop Alarm deactivation Process Stop Alarm code method system No. Name Name Alarm Cycling ACD3 ACD2 ACD1 ACD0 *2*3 system reset reset (Bit 3) (Bit 2) (Bit 1) (Bit 0) power 8E.4    Common All axes communication communication error/serial...

  • Page 28: Warning List

    Warning list Warning Detail Stop Processing Stop *2*3 method system system Name Name    Home position return incomplete warning 90.1 Home position return incomplete 90.2 Home position return abnormal termination       90.5 Z-phase unpassed ...

  • Page 29

    Warning Detail Stop Processing Stop *2*3 method system system Name Name   Overload warning 1 E1.1 Thermal overload warning 1 during Each axis operation   E1.2 Thermal overload warning 2 during Each axis operation   E1.3 Thermal overload warning 3 during Each axis operation ...

  • Page 30: Remedies For Alarms

    Warning Detail Stop Processing Stop *2*3 method system system Name Name    Simple cam function - Cam data F5.1 Cam data - Area writing time-out warning miswriting warning    F5.2 Cam data - Area miswriting warning F5.3 Cam data checksum error ...

  • Page 31

    Alarm No.: 10 Name: Undervoltage  The voltage of the control circuit power supply has dropped. Alarm content  The voltage of the main circuit power supply has dropped. Detail Detail name Cause Check method Check result Action Target 10.1 Voltage drop in The control circuit Check the connection of...

  • Page 32

    Alarm No.: 10 Name: Undervoltage  The voltage of the control circuit power supply has dropped. Alarm content  The voltage of the main circuit power supply has dropped. Detail Detail name Cause Check method Check result Action Target 10.2 Voltage drop in The main circuit power Check the main circuit...

  • Page 33

    Alarm No.: 11 Name: Switch setting error  The setting of the axis selection rotary switch or auxiliary axis number setting switch is incorrect. Alarm content  The setting of the disabling control axis switch is incorrect.  The setting of the station number selection rotary switch is incorrect. Detail Detail name Cause...

  • Page 34

    Alarm No.: 13 Name: Clock error  A part in the servo amplifier is failure. Alarm content  A clock error transmitted from the controller occurred.  [RJ010]: MR-J3-T10 came off. Detail Detail name Cause Check method Check result Action Target 13.1 Clock error 1...

  • Page 35

    Alarm No.: 14 Name: Control process error  The process did not complete within the specified time. Alarm content  [RJ010]: MR-J3-T10 came off.  [GF]: A part (communication IC) in the servo amplifier is failure. Detail Detail name Cause Check method Check result Action...

  • Page 36

    Alarm No.: 15 Name: Memory error 2 (EEP-ROM)  A part (EEP-ROM) in the servo amplifier is failure. Alarm content  [RJ010]: MR-J3-T10 came off. Detail Detail name Cause Check method Check result Action Target 15.1 EEP-ROM error EEP-ROM is Disconnect the cables It is repeatable.

  • Page 37

    Alarm No.: 16 Name: Encoder initial communication error 1  An error occurred in the communication between an encoder and servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 16.1 Encoder initial An encoder cable is Check if the encoder It has a failure.

  • Page 38

    Alarm No.: 16 Name: Encoder initial communication error 1  An error occurred in the communication between an encoder and servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 16.3 Encoder initial An axis not used is not Check the setting of the It is not set as disabled- Set it as disabled-axis.

  • Page 39

    Alarm No.: 16 Name: Encoder initial communication error 1  An error occurred in the communication between an encoder and servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 16.8 Encoder initial A servo motor or linear Check the model of the It is not compatible with Replace it with a...

  • Page 40

    Alarm No.: 17 Name: Board error  A part in the servo amplifier is malfunctioning. Alarm content Detail Detail name Cause Check method Check result Action Target 17.4 Board error 3 The servo amplifier Disconnect the cables It is repeatable. Replace the servo recognition signal was except for the control...

  • Page 41

    Alarm No.: 1A Name: Servo motor combination error  The combination of servo amplifier and servo motor is incorrect. Alarm content Detail Detail name Cause Check method Check result Action Target 1A.1 Servo motor The servo amplifier and Check the model name The combination is Use them in the correct combination...

  • Page 42

    Alarm No.: 1E Name: Encoder initial communication error 2  An encoder is malfunctioning. Alarm content Detail Detail name Cause Check method Check result Action Target 1E.1 Encoder An encoder is Replace the servo motor, It is not repeatable. Replace the servo motor. malfunction malfunctioning.

  • Page 43

    Alarm No.: 20 Name: Encoder normal communication error 1  An error occurred in the communication between an encoder and servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 20.1 Encoder normal An encoder cable is Check if the encoder It has a failure.

  • Page 44

    Alarm No.: 20 Name: Encoder normal communication error 1  An error occurred in the communication between an encoder and servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 20.5 Encoder normal When you use an A/B/ Check if the A/B-phase It is disconnected or Repair the encoder...

  • Page 45

    Alarm No.: 21 Name: Encoder normal communication error 2  The encoder detected an error signal. Alarm content Detail Detail name Cause Check method Check result Action Target 21.1 Encoder data The encoder detected a Decrease the loop gain, It is not repeatable. Use the encoder with low error 1 high speed/...

  • Page 46

    Alarm No.: 24 Name: Main circuit error  A ground fault occurred on the servo motor power lines. Alarm content  A ground fault occurred at the servo motor.  Power supply voltage for inverter circuit control is low. (Only for MR-J4W2-0303B6) Detail Detail name Cause...

  • Page 47

    Alarm No.: 25 Name: Absolute position erased  The absolute position data is faulty. Alarm content  Power was switched on for the first time in the absolute position detection system.  After the scale measurement encoder was set to the absolute position detection system, the power was switched on for the first time.

  • Page 48

    Alarm No.: 25 Name: Absolute position erased  The absolute position data is faulty. Alarm content  Power was switched on for the first time in the absolute position detection system.  After the scale measurement encoder was set to the absolute position detection system, the power was switched on for the first time.

  • Page 49

    Alarm No.: 25 Name: Absolute position erased  The absolute position data is faulty. Alarm content  Power was switched on for the first time in the absolute position detection system.  After the scale measurement encoder was set to the absolute position detection system, the power was switched on for the first time.

  • Page 50

    Alarm No.: 27 Name: Initial magnetic pole detection error  The initial magnetic pole detection was not completed properly. Alarm content Detail Detail name Cause Check method Check result Action Target 27.1 Magnetic pole A moving part collided Check if it collided. It collided.

  • Page 51

    Alarm No.: 27 Name: Initial magnetic pole detection error  The initial magnetic pole detection was not completed properly. Alarm content Detail Detail name Cause Check method Check result Action Target 27.3 Magnetic pole Both of the limit Check the limit switches. Both of them are off.

  • Page 52

    Alarm No.: 2A Name: Linear encoder error 1  An error of the linear encoder was detected. (The details vary depending on the linear encoder Alarm content manufacturer.) Detail Detail name Cause Check method Check result Action Target 2A.1 Linear encoder Mounting condition of Adjust the positions of It is not repeatable.

  • Page 53

    Alarm No.: 30 Name: Regenerative error  Permissible regenerative power of the built-in regenerative resistor or regenerative option is exceeded. Alarm content  A regenerative transistor in the servo amplifier is malfunctioning. Detail Detail name Cause Check method Check result Action Target 30.1...

  • Page 54

    Alarm No.: 31 Name: Overspeed  The servo motor speed has exceeded the instantaneous permissible speed. Alarm content  The linear servo motor speed has exceeded the instantaneous permissible speed. Detail Detail name Cause Check method Check result Action Target 31.1 Abnormal motor The command pulse...

  • Page 55

    Alarm No.: 32 Name: Overcurrent  A current higher than the permissible current was applied to the servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 32.1 Overcurrent The servo amplifier is Disconnect the servo It occurs.

  • Page 56

    Alarm No.: 32 Name: Overcurrent  A current higher than the permissible current was applied to the servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 32.3 Overcurrent Check it with the check method for [AL. 32.1]. detected at hardware detection circuit...

  • Page 57

    Alarm No.: 34 Name: SSCNET receive error 1  An error occurred in SSCNET III/H communication. (continuous communication error with 3.5 ms Alarm content interval) Detail Detail name Cause Check method Check result Action Target The SSCNET  cable Check the SSCNET  34.1 SSCNET It is disconnected.

  • Page 58

    Alarm No.: 35 Name: Command frequency error  Input pulse frequency of command pulse is too high. Alarm content Detail Detail name Cause Check method Check result Action Target 35.1 Command The command pulse Check the command The command pulse Check operation pattern.

  • Page 59

    Alarm No.: 36 Name: SSCNET receive error 2  An error occurred in SSCNET III/H communication. (intermittent communication error with about 70 ms Alarm content interval) Detail Detail name Cause Check method Check result Action Target The SSCNET  cable Check the SSCNET ...

  • Page 60

    Alarm No.: 37 Name: Parameter error  Parameter setting is incorrect. Alarm content  Point table setting is incorrect. Detail Detail name Cause Check method Check result Action Target 37.1 Parameter A parameter was set Check the parameter It is out of setting range. Set it within the range.

  • Page 61

    Alarm No.: 39 Name: Program error  A program used for the program operation is incorrect. Alarm content Detail Detail name Cause Check method Check result Action Target 39.1 Program error A checksum of the Check if an error It has a failure. Rewrite the program.

  • Page 62

    Alarm No.: 3E Name: Operation mode error  The operation mode setting was changed. Alarm content Detail Detail name Cause Check method Check result Action Target 3E.1 Operation mode The MR-J4 servo Check if the connection The connection was Initialize the servo error amplifier used in J3 was changed to like...

  • Page 63

    Alarm No.: 42 Name: Servo control error (for linear servo motor and direct drive motor)  A servo control error occurred. Alarm content Detail Detail name Cause Check method Check result Action Target 42.2 Servo control The linear encoder Check the setting of [Pr. The setting is incorrect.

  • Page 64

    Alarm No.: 42 Name: Fully closed loop control error detection (during fully closed loop control)  A fully closed loop control error has occurred. Alarm content Detail Detail name Cause Check method Check result Action Target 42.8 Fully closed The resolution of the Check the setting of [Pr.

  • Page 65

    Alarm No.: 45 Name: Main circuit device overheat  Inside of the servo amplifier overheated. Alarm content Detail Detail name Cause Check method Check result Action Target It is over 55 . 45.1 Main circuit Ambient temperature Check the ambient Lower the ambient has exceeded 55 .

  • Page 66

    Alarm No.: 46 Name: Servo motor overheat  The servo motor overheated. Alarm content Detail Detail name Cause Check method Check result Action Target It is over 40 . 46.2 Abnormal Ambient temperature of Check the ambient Lower the ambient temperature of the linear servo motor temperature of the linear...

  • Page 67

    Alarm No.: 47 Name: Cooling fan error  The speed of the servo amplifier cooling fan decreased. Alarm content  Or the fan speed decreased to the alarm occurrence level or less. Detail Detail name Cause Check method Check result Action Target 47.1...

  • Page 68

    Alarm No.: 50 Name: Overload 1  Load exceeded overload protection characteristic of servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 50.1 Thermal The servo motor power Check the servo motor It is disconnected. Repair or replace the overload error 1 cable was...

  • Page 69

    Alarm No.: 50 Name: Overload 1  Load exceeded overload protection characteristic of servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 50.4 Thermal A moving part collided Check if it collided. It collided. Check operation pattern. overload error 1 against the machine.

  • Page 70

    Alarm No.: 51 Name: Overload 2  Maximum output current flowed continuously due to machine collision or the like. Alarm content Detail Detail name Cause Check method Check result Action Target 51.1 Thermal The servo motor power Check the servo motor It is disconnected.

  • Page 71

    Alarm No.: 52 Name: Error excessive  Droop pulses have exceeded the alarm occurrence level. Alarm content Detail Detail name Cause Check method Check result Action Target 52.1 Excess droop The servo motor power Check the servo motor It is disconnected. Repair or replace the pulse 1 cable was...

  • Page 72

    Alarm No.: 52 Name: Error excessive  Droop pulses have exceeded the alarm occurrence level. Alarm content Detail Detail name Cause Check method Check result Action Target 52.1 Excess droop (13) Servo-on was enabled Measure the actual Servo is enabled while Review the timing of the pulse 1 while the servo motor...

  • Page 73

    Alarm No.: 54 Name: Oscillation detection  An oscillation of the servo motor was detected. Alarm content Detail Detail name Cause Check method Check result Action Target 54.1 Oscillation The servo system is Check if the servo motor The torque ripple is Adjust the servo gain detection error unstable and oscillating.

  • Page 74

    Alarm No.: 56 Name: Forced stop error  The servo motor does not decelerate normally during forced stop deceleration. Alarm content Detail Detail name Cause Check method Check result Action Target 56.4 Forced stop The SSCNET III cable Check if the SSCNET III It is not connected.

  • Page 75

    Alarm No.: 63 Name: STO timing error  STO input signal turns off while the servo motor is rotating. Alarm content Detail Detail name Cause Check method Check result Action Target 63.5 STO by STO of the functional Check if STO of the It is off (enabled).

  • Page 76

    Alarm No.: 65 Name: Functional safety unit connection error  Communication or signal between a functional safety unit and servo amplifier failed. Alarm content Detail Detail name Cause Check method Check result Action Target 65.2 Functional Check it with the check method for [AL. 65.1]. safety unit communication error 2...

  • Page 77

    Alarm No.: 66 Name: Encoder initial communication error (safety observation function)  The connected encoder is not compatible with the servo amplifier. Alarm content  An error has occurred in the communication between an encoder and servo amplifier. Detail Detail name Cause Check method Check result...

  • Page 78

    Alarm No.: 67 Name: Encoder normal communication error 1 (safety observation function)  An error has occurred in the communication between an encoder and servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 67.2 Encoder normal Check it with the check method for [AL.

  • Page 79

    Alarm No.: 69 Name: Command error  The command position exceeded 32 bits (-2147483648 to 2147483647) when the software limit is Alarm content activated.  The command position exceeded 30 bits (-536870912 to 536870911) from the value that was set when the software limit was activated.

  • Page 80

    Alarm No.: 69 Name: Command error  The command position exceeded 32 bits (-2147483648 to 2147483647) when the software limit is Alarm content activated.  The command position exceeded 30 bits (-536870912 to 536870911) from the value that was set when the software limit was activated.

  • Page 81

    Alarm No.: 69 Name: Command error  The command position exceeded 32 bits (-2147483648 to 2147483647) when the software limit is Alarm content activated.  The command position exceeded 30 bits (-536870912 to 536870911) from the value that was set when the software limit was activated.

  • Page 82

    Alarm No.: 70 Name: Load-side encoder initial communication error 1  An error occurred in the initial communication between the load-side encoder and servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 70.3 Load-side An axis not used is not Check the setting of the It is not set as disabled- Set it as disabled-axis.

  • Page 83

    Alarm No.: 70 Name: Load-side encoder initial communication error 1  An error occurred in the initial communication between the load-side encoder and servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 70.5 Load-side When you use an A/B/ Check if the A/B-phase It is disconnected or Repair the encoder...

  • Page 84

    Alarm No.: 70 Name: Load-side encoder initial communication error 1  An error occurred in the initial communication between the load-side encoder and servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 70.B Load-side Check it with the check method for [AL. 70.A]. encoder initial communication - Process error...

  • Page 85

    Alarm No.: 71 Name: Load-side encoder normal communication error 1  An error occurred in the communication between the load-side encoder and servo amplifier. Alarm content Detail Detail name Cause Check method Check result Action Target 71.2 Load-side Check it with the check method for [AL. 71.1]. encoder normal communication - Receive data...

  • Page 86

    Alarm No.: 72 Name: Load-side encoder normal communication error 2  The load-side encoder detected an error signal. Alarm content Detail Detail name Cause Check method Check result Action Target 72.4 Load-side A signal of the load-side Check if the load-side It has a failure.

  • Page 87

    Alarm No.: 75 Name: Option card error 2  MR-J3-T10 came off. Alarm content Detail Detail name Cause Check method Check result Action Target 75.3 Option card MR-J3-T10 came off. Check if the MR-J3-T10 It is not mounted Install it correctly. [RJ010] connection error is mounted correctly.

  • Page 88

    Alarm No.: 79 Name: Functional safety unit diagnosis error  A diagnosis of the functional safety unit failed. Alarm content Detail Detail name Cause Check method Check result Action Target It is over 55 . 79.3 Abnormal Ambient temperature Check the ambient Lower the ambient has exceeded 55 .

  • Page 89

    Alarm No.: 79 Name: Functional safety unit diagnosis error  A diagnosis of the functional safety unit failed. Alarm content Detail Detail name Cause Check method Check result Action Target 79.6 Output device A signal of an output Check if the output It has a failure.

  • Page 90

    Alarm No.: 7A Name: Parameter setting error (safety observation function)  A parameter of the functional safety unit failed. Alarm content Detail Detail name Cause Check method Check result Action Target 7A.1 Parameter A parameter of the Review the parameter. It is not repeatable.

  • Page 91

    Alarm No.: 7B Name: Encoder diagnosis error (safety observation function)  Error occurred in encoder. Alarm content Detail Detail name Cause Check method Check result Action Target 7B.2 Encoder Check it with the check method for [AL. 7B.1]. diagnosis error 2 (safety observation function)

  • Page 92

    Alarm No.: 7C Name: Functional safety unit communication diagnosis error (safety observation function)  The network communication had an error in the functional safety unit. Alarm content Detail Detail name Cause Check method Check result Action Target 7C.2 Functional The time taken for the Refer to "MR-D30 It is not set correctly.

  • Page 93

    Alarm No.: 7D Name: Safety observation error  The safety observation function detected an error. Alarm content Detail Detail name Cause Check method Check result Action Target 7D.1 Stop During activation of Check that the actual The travel distance of the Review the alarm level.

  • Page 94

    Alarm No.: 7D Name: Safety observation error  The safety observation function detected an error. Alarm content Detail Detail name Cause Check method Check result Action Target 7D.2 Speed The command pulse Check the command The command pulse Check operation pattern. observation frequency is high.

  • Page 95

    Alarm No.: 84 Name: Network module initialization error  The network module is not connected. Alarm content  An error occurred at initialization of the network module. Detail Detail name Cause Check method Check result Action Target 84.1 Network module The network module Check if the network It is not connected...

  • Page 96

    Alarm No.: 85 Name: Network module error  The network module was disconnected. Alarm content  An error occurred in the network module. (Refer to section 1.7.) Detail Detail name Cause Check method Check result Action Target 85.1 Network module The network module Check if the network It is not connected...

  • Page 97

    Alarm No.: 86 Name: Network communication error  An error occurred in the network module. Alarm content  An error occurred in the network communication. Detail Detail name Cause Check method Check result Action Target 86.1 Network The network module Check if the network It is not connected Connect it correctly.

  • Page 98

     Communication between the servo amplifier and a personal computer/controller stopped for the Alarm content specified time or longer.  An error occurred in USB communication, serial communication (Mitsubishi Electric general-purpose AC servo protocol), or Modbus RTU communication. Detail Detail name...

  • Page 99

    Alarm No.: 8D Name: CC-Link IE communication error  MR-J3-T10 came off. Alarm content  An error occurred in CC-Link IE communication. Detail Detail name Cause Check method Check result Action Target 8D.1 CC-Link IE The MR-J3-T10 came Check if [AL. 74 Option It is occurring.

  • Page 100

    Name: USB communication error/serial communication error/Modbus RTU communication error  A communication error occurred between the servo amplifier and a personal computer/controller. Alarm content  An error occurred in USB communication, serial communication (Mitsubishi Electric general-purpose AC servo protocol), or Modbus RTU communication. Detail...

  • Page 101

    Name: USB communication error/serial communication error/Modbus RTU communication error  A communication error occurred between the servo amplifier and a personal computer/controller. Alarm content  An error occurred in USB communication, serial communication (Mitsubishi Electric general-purpose AC servo protocol), or Modbus RTU communication. Detail...

  • Page 102

    Name: USB communication error/serial communication error/Modbus RTU communication error  A communication error occurred between the servo amplifier and a personal computer/controller. Alarm content  An error occurred in USB communication, serial communication (Mitsubishi Electric general-purpose AC servo protocol), or Modbus RTU communication. Detail...

  • Page 103: Remedies For Warnings

    Remedies for warnings CAUTION If [AL. E3 Absolute position counter warning] occurs, remove the cause of the warning, and always make home position setting again. Otherwise, it may cause an unexpected operation. When any of the following alarms has occurred, do not cycle the power of the servo amplifier repeatedly to restart.

  • Page 104

    Alarm No.: 90 Name: Home position return incomplete warning  A home position return did not complete normally with the positioning function. Alarm content Detail Detail name Cause Check method Check result Action Target 90.1 Home position An automatic operation Check if the home A home position return Execute a home position...

  • Page 105

    Alarm No.: 90 Name: Home position return incomplete warning  A home position return did not complete normally with the positioning function. Alarm content Detail Detail name Cause Check method Check result Action Target 90.2 Home position The proximity dog is not Check if the proximity It is not connected.

  • Page 106

    Alarm No.: 92 Name: Battery cable disconnection warning  Battery voltage for absolute position detection system decreased. Alarm content Detail Detail name Cause Check method Check result Action Target 92.1 Encoder battery 1) When an MR- Check if the battery is It is not connected.

  • Page 107

    Alarm No.: 95 Name: STO warning  STO input signal turns off while the servo motor stops. Alarm content  A diagnosis of input devices was not executed.  The safety observation function was enabled in the test mode. Detail Detail name Cause Check method...

  • Page 108

    Alarm No.: 95 Name: STO warning  STO input signal turns off while the servo motor stops. Alarm content  A diagnosis of input devices was not executed.  The safety observation function was enabled in the test mode. Detail Detail name Cause Check method...

  • Page 109

    Alarm No.: 96 Name: Home position setting warning  Home position setting could not be made. Alarm content Detail Detail name Cause Check method Check result Action Target 96.1 In-position INP (In-position) did not Check the droop pulses It is In-position range or Adjust gains to set droop warning at turn on within the...

  • Page 110

    Alarm No.: 98 Name: Software limit warning  A software limit set with the parameter was reached for the positioning function. Alarm content Detail Detail name Cause Check method Check result Action Target 98.1 Forward A software limit was set Check if the parameter The setting was out of Set [Pr.

  • Page 111

    Alarm No.: 9A Name: Optional unit input data error warning  The BCD input data setting is incorrect when MR-D01 extension IO unit is connected. Alarm content Detail Detail name Cause Check method Check result Action Target 9A.1 Optional unit The MR-D01 extension Check if MR-D01 is It is not connected.

  • Page 112

    Alarm No.: 9B Name: Error excessive warning  Droop pulses have exceeded the warning occurrence level. Alarm content Detail Detail name Cause Check method Check result Action Target 9B.1 Excess droop The position loop gain Increase the position It is not repeatable. Increase the position pulse 1 warning is small.

  • Page 113

    Alarm No.: 9D Name: CC-Link IE warning 1  The station No. switch setting was changed after power-on. Alarm content  The station No. setting differs from that of master station. Detail Detail name Cause Check method Check result Action Target 9D.2 Master station...

  • Page 114

    Alarm No.: 9F Name: Battery warning  Battery voltage for absolute position detection system decreased. Alarm content Detail Detail name Cause Check method Check result Action Target 9F.1 Low battery The battery is not Check if the battery is It is not connected. Connect it correctly.

  • Page 115

    Alarm No.: E1 Name: Overload warning 1  [AL. 50 Overload 1] or [AL. 51 Overload 2] can occur. Alarm content Detail Detail name Cause Check method Check result Action Target E1.1 Thermal The load was over 85% Check it with the check method for [AL. 50.1]. overload to the alarm level of warning 1...

  • Page 116

    Alarm No.: E3 Name: Absolute position counter warning  The multi-revolution counter value of the absolute position encoder exceeded the maximum range. Alarm content  Absolute position encoder pulses are faulty.  An update cycle is short for writing multi-revolution counter value of the absolute position encoder to EEP-ROM.

  • Page 117

    Alarm No.: E5 Name: ABS time-out warning  A response from the programmable controller was over 5 s at the absolute position erased data Alarm content transfer.  ABSM (ABS transfer mode) turned off during the absolute position erased data transfer. ...

  • Page 118

    Alarm No.: E7 Name: Controller forced stop warning  The forced stop signal of the servo system controller was enabled. Alarm content Detail Detail name Cause Check method Check result Action Target E7.1 Controller The forced stop signal Check if the servo It is the forced stop Ensure safety and cancel forced stop...

  • Page 119

    Alarm No.: E9 Name: Main circuit off warning  The servo-on command was inputted with main circuit power supply off. Alarm content  The bus voltage dropped during the servo motor driving under 50 r/min. Detail Detail name Cause Check method Check result Action Target...

  • Page 120

    Alarm No.: EB Name: The other axis error warning  An alarm, which stops all axes, such as [AL. 24 Main circuit error] or [AL. 32 Overcurrent] occurred in Alarm content other axis.  "All alarms" of "Target alarm selection of the other axis error warning" is selected in [Pr. PF02]. Detail Detail name Cause...

  • Page 121

    Alarm No.: F2 Name: Drive recorder - Miswriting warning  A waveform measured by the drive recorder function was not recorded. Alarm content Detail Detail name Cause Check method Check result Action Target F2.1 Drive recorder - The Flash-ROM is Disconnect the cables It is repeatable.

  • Page 122

    Alarm No.: F5 Name: Simple cam function - Cam data miswriting warning  The cam data written by MR Configurator2 is not written to a Flash-ROM. Alarm content Detail Detail name Cause Check method Check result Action Target F5.1 Cam data - The Flash-ROM is Disconnect the cables It is repeatable.

  • Page 123

    Alarm No.: F6 Name: Simple cam function - Cam control warning  The cam axis position restoration at a time of cam control start was a failure. Alarm content  The cam control is not normal. Detail Detail name Cause Check method Check result Action...

  • Page 124

    Alarm No.: F6 Name: Simple cam function - Cam control warning  The cam axis position restoration at a time of cam control start was a failure. Alarm content  The cam control is not normal. Detail Detail name Cause Check method Check result Action...

  • Page 125

    Alarm No.: F7 Name: Machine diagnosis warning  There is a possibility that the equipment connected with the servo motor is malfunctioning. Alarm content Detail Detail name Cause Check method Check result Action Target F7.1 Vibration failure The servo system is Check if the gain is The gain was changed.

  • Page 126: Trouble Which Does Not Trigger Alarm/warning

    Trouble which does not trigger alarm/warning When the servo amplifier, servo motor, or encoder malfunctions, the following status may occur. The following example shows causes which do not trigger alarm or warning. Remove each cause referring to this section. Description Cause Checkpoint Action...

  • Page 127

    Description Cause Checkpoint Action Target The display shows "Ab". Connection to MR-J4W3-_B with Check if the communication cycle Use them with 0.444 ms or more [WB] software version A2 or earlier was on servo system controller side is communication cycle. attempted in 0.222 ms 0.222 ms.

  • Page 128

    Description Cause Checkpoint Action Target The display turned off. The external I/O terminal was When the display is on by Review the wiring of I/O signals. shorted. disconnecting the following connectors, check if the [WB] disconnected cable wire is [RJ010] shorted.

  • Page 129

    Description Cause Checkpoint Action Target The servo motor does not The command pulse is not Check if the pulse train is Review the setting on the operate. inputted in the position control outputted on the controller side. controller side. mode. The wiring of the command pulse Check the cumulative command Review the wiring.

  • Page 130

    Description Cause Checkpoint Action Target The servo motor does not The setting of the point table No. Check the setting of the point Review the setting of the point [GF] operate. selection is incorrect. table No. selection (CC-Link IE table No. selection. Field Network: RWwn06, CC-Link IE Field Network Basic: RWwn05) The setting of the next station No.

  • Page 131

    Description Cause Checkpoint Action Target The speed of the servo motor or The setting of the speed Check the settings of the speed Review the settings of the speed linear servo motor is not command, speed limit, or command, speed limit, and command, speed limit, and increased.

  • Page 132

    Description Cause Checkpoint Action Target An unusual noise is occurring at The servo gain is low. Or the Check if the trouble is solved by Adjust gains. the servo motor. response of auto tuning is low. increasing auto tuning response ([Pr.

  • Page 133

    Description Cause Checkpoint Action Target The rotation accuracy is low. The servo gain is low. Or the Check if the trouble is solved by Adjust gains. (The speed is unstable.) response of auto tuning is low. increasing auto tuning response ([Pr.

  • Page 134

    Description Cause Checkpoint Action Target The position deviates during The position command and actual Check that "cumulative feedback Review the position command operation after home position machine position are different. pulses × travel distance per pulse" and electronic gear setting. return.

  • Page 135

    Description Cause Checkpoint Action Target The position deviates during The command pulses were Check that the command value of Please take countermeasures operation after home position miscounted due to noise. the controller and the number of against noise for the command return.

  • Page 136

    Description Cause Checkpoint Action Target A restoration position deviates at The motor was rotated exceeding Check if the motor was Extend the acceleration time. restoration of power for the the maximum permissible speed accelerated suddenly to 6000 r/ absolute position detection at power failure (6000 r/min) by an min by an external force.

  • Page 137

    Description Cause Checkpoint Action Target The program operation is not in The command speed of the An abnormal value such as 0 [r/ Review the program. progress. positioning operation is low. min] was set for specifying the servo motor speed. The program stops at the state of A program input number set with Review the program or signal to...

  • Page 138

    Action Target RS-422 communication The servo amplifier is not set to Check if "communication protocol Select RS-422/RS-485 (Mitsubishi Electric general- RS-422 communication protocol. selection" in [Pr. PC71] is communication (Mitsubishi purpose AC servo protocol) is not correctly set. Electric general-purpose AC established.

  • Page 139: Network Module Error Codes

    Network module error codes If an error occurs in the network module, a network module error code will be displayed in "Alarm Display" of MR Configurator2. For details of the network module error codes, refer to "Exception Codes" of "Anybus CompactCom 40 Software Design Guide (Doc.Id.

  • Page 140: Chapter 2 Troubleshooting For Mr-cv_power Regeneration Con

    TROUBLESHOOTING FOR MR-CV_POWER REGENERATION CONVERTER UNIT When an error occurs during operation, the corresponding alarm or warning is displayed. When an alarm occurs, ALM (Malfunction) will turn off. Refer to the following and take the appropriate action. Page 140 Remedies for alarms When a warning occurs, refer to the following and take the appropriate action.

  • Page 141: Alarm List

    Alarm list Name Alarm deactivation Alarm reset CPU reset Cycling the power    Overcurrent    Frequency error Process error       Open phase Watchdog       Ground fault MC drive circuit error ...

  • Page 142: Remedies For Alarms

    Remedies for alarms Name/Description Cause Check method Check result Action Overcurrent The combination of AC Check if the correct AC It is incorrect. Connect the correct AC • A current higher than the reactor and power reactor is connected. reactor. permissible current was regeneration converter It is correct.

  • Page 143

    Name/Description Cause Check method Check result Action Process error Something near the Check the power supply There is a problem in the Take countermeasures • The process did not device caused it. for noise. Check if the surrounding. against its cause. complete within the connector is shorted.

  • Page 144

    Name/Description Cause Check method Check result Action Main circuit error The total capacity of Check if the total It exceeds the total Review the capacity. • An error was detected connected servo capacity of connected capacity of servo when the main circuit amplifiers other than servo amplifiers other amplifiers connectable to...

  • Page 145

    Name/Description Cause Check method Check result Action Overvoltage The regeneration Set a longer It is not repeatable. Check operation pattern. • The value of the bus capacity is insufficient. deceleration time Or use a larger converter voltage exceeded the constant, and then check unit.

  • Page 146: Remedies For Warnings

    Remedies for warnings Name/Description Cause Check method Check result Action Instantaneous power failure An instantaneous power Check if the power has a It has a problem. Review the power. warning failure has occurred for problem. • [AL. 71] may occur. 30 ms or longer.

  • Page 147: Chapter 3 Troubleshooting For Mr-cr55k(4) Resistance Regeneration Converter Unit

    TROUBLESHOOTING FOR MR-CR55K(4) RESISTANCE REGENERATION CONVERTER UNIT [AL. 37 Parameter error] and warnings are not recorded in the alarm history. When an error occurs during operation, the corresponding alarm or warning is displayed. When an alarm occurs, ALM (Malfunction) will turn off. Refer to the following and take the appropriate action. Page 146 Remedies for alarms When a warning occurs, refer to the following and take the appropriate action.

  • Page 148: Warning

    Warning Display Name A.91 Converter overheat warning A.E0 Excessive regeneration warning A.E1 Overload warning 1 A.E6 Converter forced stop warning A.E8 Cooling fan speed reduction warning Remedies for alarms CAUTION When any alarm has occurred, eliminate its cause, ensure safety, and deactivate the alarm before restarting operation. Otherwise, it may cause injury. When any of the following alarms has occurred, do not deactivate the alarm repeatedly to restart.

  • Page 149

    Name/Description Cause Check method Check result Action Memory error 2 (EEP-ROM) EEP-ROM is Disconnect the cables It is repeatable. Replace the resistance • Failure of the part (EEP- malfunctioning at power except for the control regeneration converter ROM) in the resistance circuit power supply, and unit.

  • Page 150

    Name/Description Cause Check method Check result Action Regenerative error The setting of the Check the regenerative The setting value is Set it correctly. • Permissible regenerative regenerative resistor resistor (regenerative incorrect. power of the regenerative (regenerative option) is option) and [Pr. PA01] It is set correctly.

  • Page 151

    Name/Description Cause Check method Check result Action Overvoltage The regenerative Check if the regenerative It is not used. Use the regenerative • The value of the bus resistor (regenerative resistor (regenerative resistor (regenerative voltage exceeded the option) is not used. option) is used.

  • Page 152

    Name/Description Cause Check method Check result Action MC drive circuit error The connection to the Check the output of It is not correct. Connect it correctly. • Magnetic contactor drive magnetic contactor magnetic contactor circuit is malfunctioning. connector (CNP1) is control connector The main circuit power incorrect.

  • Page 153: Remedies For Warnings

    Name/Description Cause Check method Check result Action Cooling fan error Foreign matter was Check if a foreign matter Something has been Remove the foreign • The speed of the caught in the cooling is caught in the cooling caught. matter. resistance regeneration fan.

  • Page 154

    Name/Description Cause Check method Check result Action Converter overheat warning Operated in the Check the effective load The effective load ratio is Check operation pattern. • The temperature of the overloaded status. ratio. high. resistance regeneration The effective load ratio is Check (2).

  • Page 155: Chapter 4 Drive Recorder

    DRIVE RECORDER How to use drive recorder When you use the J3 extension function, replace the following left parameters to the right parameters. [Pr. PF21]  [Pr. PX30] [Pr. PA23]  [Pr. PX29] The drive recorder will not operate on the following conditions. •...

  • Page 156

    Recordable data by drive recorder When the setting value is "0 0 0 0" (initial value) in "Drive recorder arbitrary alarm trigger setting" ([Pr. PA23]), the drive recorder will record data of standard column in the following tables for all alarms. When you set an alarm in the following tables to [Pr.

  • Page 157

    Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7 Data 8 Sampling Measure time [ms] ment time [ms]  AL. 35 Analog Motor Torque Current Command Droop Speed 0.888 speed command pulse pulses command voltage frequency (1 pulse) Digital...

  • Page 158

    Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7 Data 8 Sampling Measure time [ms] ment time [ms]  AL. 20 Analog Motor Torque Within Current Encoder Encoder 0.888 speed counter one- command error error revolution counter 1 counter 2...

  • Page 159

    Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7 Data 8 Sampling Measure time [ms] ment time [ms]  AL. 52 Analog Motor Torque Current Droop Speed Error speed command pulses command voltage excessive (100 alarm pulses) margin...

  • Page 160

    Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7 Data 8 Sampling Measure time [ms] ment time [ms]  AL. 35 Analog Motor Torque Current Command Droop Speed 0.888 speed command pulse pulses command voltage frequency (1 pulse) Digital...

  • Page 161

    Signal name Description Unit Encoder error counter 2 The same as encoder error counter 1. [times]  U-phase current feedback This indicates U-phase current value applying to the servo motor per internal unit.  V-phase current feedback This indicates V-phase current value applying to the servo motor per internal unit. Regenerative load ratio The ratio of regenerative power to permissible regenerative power is displayed in %.

  • Page 162: How To Display Drive Recorder Information

    How to display drive recorder information Select "Diagnosis" and "Drive Recorder" from the menu bar of MR Configurator2. The window shown in the following image will be displayed. Click "Waveform" - "Display" ((a)) to display the graph preview window which shows data before and after alarm occurrence. For operating the graph preview window, refer to Help of MR Configurator2.

  • Page 163: Appendix

    APPENDIX Appendix 1 Detection points of [AL. 25], [AL. 92], and [AL. 9F] The following diagram shows detection points of [AL. 25 Absolute position erased], [AL. 92 Battery cable disconnection warning], and [AL. 9F Battery warning]. Servo amplifier Servo motor encoder [AL.

  • Page 164

    MEMO APPX Appendix 1 Detection points of [AL. 25], [AL. 92], and [AL. 9F]...

  • Page 165: Revisions

    REVISIONS *The manual number is given on the bottom left of the back cover. Revision date *Manual number Description March 2012 SH(NA)-030109ENG-A First edition June 2012 SH(NA)-030109ENG-B Section 1.1 [AL. 1E.2] is added. [AL. 1F.2] is added. [AL. 42.8] is added. [AL.

  • Page 166

    Revision date *Manual number Description August 2013 SH(NA)-030109ENG-D Section 1.4 The part of table is changed. Section 2.1 The part of table is changed. October 2013 SH(NA)-030109ENG-E Section 1.2 [AL. 25.1] The part of table is changed. [AL. 25.2] The part of table is changed. Section 1.3 [AL.

  • Page 167

    Revision date *Manual number Description September 2014 SH(NA)-030109ENG-H MR-J4-DU_(-RJ) and MR-CR55K_ are added. Section 1.2 Alarm is added. Section 1.3 Warning is added. Section 1.4 [AL. 10.1] is partially changed. [AL. 10.2] is partially changed. [AL. 14.2] is partially changed. [AL.

  • Page 168

    Revision date *Manual number Description April 2015 SH(NA)-030109ENG-J Section 1.4 [AL. 95] is partially changed. [AL. 96.1], [AL. 96.2], and [AL. 96.4] are partially changed. [AL. 99] is partially changed. [AL. 9A] is added. [AL. E3.1] is partially changed. [AL. E7.1] is partially added. [AL.E9] is partially changed.

  • Page 169

    Revision date *Manual number Description December 2016 SH(NA)-030109ENG-M Section 1.4 [AL. 1A] is partially added. [AL. 30] is partially added. [AL. 35] is partially added. [AL. 37] is partially changed. [AL. 7C] is partially changed. Section 1.5 [AL. 90] is partially added. [AL.

  • Page 170

    Japanese manual number: SH-030108-W This manual confers no industrial property rights of any other kind, nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this manual.

  • Page 171: Warranty

    WARRANTY Warranty 1. Warranty period and coverage We will repair any failure or defect hereinafter referred to as "failure" in our FA equipment hereinafter referred to as the "Product" arisen during warranty period at no charge due to causes for which we are responsible through the distributor from which you purchased the Product or our service provider.

  • Page 172: Trademarks

    TRADEMARKS MELSERVO and CC-Link IE are trademarks or registered trademarks of Mitsubishi Electric Corporation in Japan and/or other countries. Modbus is registered trademark of SCHNEIDER ELECTRIC USA, INC. Ethernet is a registered trademark of Fuji Xerox Co., Ltd. in Japan.

  • Page 174

    SH(NA)-030109ENG-R(1811)MEE MODEL: MR-J4 INSTRUCTIONMANUAL (TROUBLESHOOTING) MODEL CODE: 1CW808 HEAD OFFICE : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN NAGOYA WORKS : 1-14 , YADA-MINAMI 5-CHOME , HIGASHI-KU, NAGOYA , JAPAN When exported from Japan, this manual does not require application to the Ministry of Economy, Trade and Industry for service transaction permission.

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