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Cause: Positioning control error comes when an excessive positioning deviation has occurred when the servo-lock function was activated. This fault typically occurs when the drive is operating in a clo...

Cause: Braking transistor error comes when a braking transistor error is detected. The "dba" fault specifically means the drive has detected a malfunction within the braking transistor circuit. dba f...

Cause: PID feedback wire break comes when the PID feedback wire is broken. This alarm is triggered when the feedback signal used in PID control becomes invalid, such as when the feedback signal wire b...

Cause: Mock alarm comes when the "STOP" + "Function/Data" keys were held down for more than 5 seconds. To escape from this alarm state, press "PRG/RESET" the key.

Cause: NTC wire break error comes when a wire break is found in the NTC thermistor detection circuit. An NTC thermistor's resistance decreases as its temperature increases. A "wire break" suggests an ...

Cause: Speed mismatch or excessive speed deviation comes when an excessive deviation appears between the speed command and the detected speed. ere fault in fuji FRENIC MEGA drive indicates Speed misma...

Cause: Hardware error comes when the LSI on the power printed circuit board malfunctions. Or, the fuse blew inside the inverter. erh fault in fuji FRENIC MEGA drive indicates Hardware error. This mean...

Cause: Data saving error during undervoltage comes when the inverter failed to save data such as the frequency commands and PID commands (which are specified through the keypad), or the output frequen...

Cause: RS-485 communications error (COM port 2) comes when a communications error occurred during RS-485 communications. This means the drive is unable to establish or maintain reliable communication ...

Cause: RS-485 communications error (COM port 1) comes when a communications error occurred during RS-485 communications. This means the drive is unable to establish or maintain reliable communication ...

Cause: Tuning error comes when auto-tuning failed. This fault specifically occurs when the drive's motor autotuning (also known as auto-tuning or auto-setting) process fails or encounters an issue. ...

Cause: Operation protection comes when an error has occurred due to an operation incorrect to the operation method. This is a general fault code that indicates the drive's internal protection function...

Cause: Option error comes when an error detected by the option card. An option error means that the specific functionality or integrity of an installed option card is compromised. The card might be fa...

Cause: Option communications error comes when a communications error occurred between the option card and the inverter. er4 fault in fuji FRENIC MEGA drive indicates Option communications error. This...

Cause: CPU error comes when the central processing unit (CPU) – the "brain" of the inverter – has detected an internal error or malfunction. This prevents the drive from executing its program and cont...