Er.104 - Programmable Logic Interruption Error

Fault Code Description: Er.104 refers to a programmable logic interruption error. This error occurs due to issues in communication between the MCU (Microcontroller Unit) and FPGA (Field-Programmable Gate Array). Details of the fault code can be determined by the internal error codes in H0B-44.

Causes:

   FPGA Failure (E4.104):
        - This error can be triggered if the FPGA hardware is faulty.

   Communication Issue between MCU and FPGA (Er.100):
        - Any abnormality in communication between the FPGA and MCU can cause this error.

   Driver Internal Process Timeout (Er.940):
        - This error occurs when a timeout is encountered during internal processes within the driver.

Troubleshooting and Solutions:

   FPGA failure (E4.104):
        - Troubleshooting Method: If the error persists after turning the servo drive off and on multiple times, there might be an issue with the FPGA hardware.
        - Solution: If the FPGA is faulty, the servo drive needs to be replaced.

   Communication issue between MCU and FPGA (Er.100):
        - Troubleshooting Method: Check for abnormalities in communication between the MCU and FPGA. If the issue persists, it could be related to either FPGA or MCU hardware.
        - Solution: If the communication problem continues, the servo drive may need to be replaced.

   Driver internal process timeout (Er.940):
        - Troubleshooting Method: Check if there was a timeout during an internal process. This error occurs when there is a delay or pause in driver operations.
        - Solution: If the timeout error continues, the servo drive may need to be replaced.

Summary: Er.104 error is usually caused by communication issues between the MCU and FPGA or hardware failure in the FPGA. If the error persists after restarting the drive several times, replacing the servo drive is the best solution.

Er.105 - Internal Program Abnormality

Fault Code Description: Er.105 indicates an issue with the internal program operation. This issue typically arises during EEPROM (Electrically Erasable Programmable Read-Only Memory) read/write processes. Additionally, parameter setting ranges might become abnormal after a software update.

Causes:

   EEPROM Error:
        - The number of parameters or setting ranges might be abnormal during EEPROM read/write processes. This usually occurs after a software update.

   Servo Drive Failure:
        - If the error persists after turning the servo drive off and on multiple times, there might be a hardware failure in the servo drive.

Troubleshooting and Solutions:

   EEPROM Error:
        - Troubleshooting Method: Check the cause of the error according to Er.101 (Er.101 explains situations such as parameter limit violations or parameter abnormalities after a software update).
        - Solution: Reset to default settings (H02-31 = 1) and restart the servo drive.

   Servo Drive Failure:
        - Troubleshooting Method: If the error persists after turning the servo drive off and on several times, it indicates a hardware failure in the servo drive.
        - Solution: Replace the servo drive.

Summary: Er.105 error is usually caused by an EEPROM error or parameter setting corruption after a software update. The solution is to reset to default settings and restart the servo drive. If this does not resolve the issue, the servo drive may need to be replaced.

Er.108 - Parameter Storage Error

Fault Code Description: Er.108 indicates an issue with storing or reading parameters in EEPROM. This error occurs when parameter values cannot be stored or read correctly.

Causes:

   EEPROM Write Error:
        - Parameter values may not be stored correctly in the EEPROM.

   EEPROM Read Error:
        - Parameter values may not be read correctly from the EEPROM.

Troubleshooting and Solutions:

   EEPROM Write Error:
        - Troubleshooting Method: Change a parameter and restart the servo drive. Check if the change has been saved.
        - Solution: If the change is not saved and the error persists after turning the servo drive off and on multiple times, you may need to replace the servo drive.

   EEPROM Read Error:
        - Troubleshooting Method: Check if the parameters are being read correctly from the EEPROM.
        - Solution: If the parameters cannot be read correctly from the EEPROM and the error persists after multiple attempts, the servo drive may need to be replaced.

Summary: Er.108 error results from the inability to write or read parameters to/from the EEPROM. The solution is to make a parameter change and restart the servo drive. If the issue persists, the servo drive may need to be replaced.

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