AI2F [AI2 input]: This error indicates a problem with the analog input AI2. It could be due to incorrect wiring or an incorrect signal value. To fix this, check the wiring and signal value of AI2. If needed, adjust the fault configuration via the [AI2 4-20mA loss] (LFL2) parameter.

    bOF [DBR overload]: This error suggests that the braking resistor is under too much stress. To resolve this, check the size of the resistor, allow it to cool down, and verify the [DB Resistor Power] (brP) and [DB Resistor value] (brU) parameters.

    bUF [DB unit sh. Circuit]: This indicates a short-circuit output from the braking unit or that the braking unit is not connected. Check the wiring of the braking unit and resistor, and verify the braking resistor. If there is no braking unit or resistor connected, disable the monitoring of this fault via the [Brake res. fault Mgt] (bUb) parameter.

    CrF1 [Precharge]: This error means there is a fault in the load relay control or the charging resistor is damaged. Turn the drive off and then back on again, check the internal connections, and inspect or repair the drive.

    CrF2 [Thyr. soft charge]: This indicates a DC bus charging fault involving the thyristors. Check the thyristors with the [TEST THYRISTORS] function.

    dCF [Differential current Fault]: This error shows a current difference between power block A and B. Check the thyristors with [TEST THYRISTORS], the IGBT with [TRANSISTOR TEST], and the current transformer.

    EEF1 [Control Eeprom]: This error indicates an internal memory fault in the control card. Check the environment for electromagnetic compatibility, turn off the drive, reset it, return to factory settings, and inspect or repair the drive.

    EEF2 [Power Eeprom]: This error indicates an internal memory fault in the power card. Similar actions as EEF1 should be taken.

    EnF [Encoder]: This error signifies an encoder feedback fault. Check the [Number of pulses] (PGI) and [Encoder type] (EnS) parameters, ensure the encoder's mechanical and electrical operation, power supply, and connections are all correct. If necessary, reverse the direction of rotation of the motor or the encoder signals.

    FCF1 [Out. contact. stuck]: This error means the output contactor remains closed although the opening conditions have been met. Check the contactor and its wiring, and verify the feedback circuit.

    Fd2 [Damper open]: This error indicates that the damper remains open although the closing conditions have been met. Check the damper and its wiring, verify the feedback circuit, and check the time delay for the function.

    HdF [IGBT desaturation]: This error suggests a short-circuit or grounding at the drive output. Check the cables connecting the drive to the motor and the insulation of the motor. Perform diagnostic tests via the [1.10 DIAGNOSTICS] menu.

    LF [internal com. link]: This error indicates a communication fault between an option card and the drive. Check for electromagnetic compatibility, ensure the connections are secure, and verify that no more than two option cards are installed. If necessary, replace the option card and inspect or repair the drive.

    InF1 [Rating error]: This error means the power card differs from the stored card. Check the reference of the power card to ensure it matches.

    InF2 [Incompatible PB]: This error indicates that the power card is incompatible with the control card. Verify the reference of the power card and its compatibility with the control card.

    InF3 [Internal serial link]: This error suggests a communication fault between internal cards. Check the internal connections and inspect or repair the drive if necessary.

    InF4 [Internal MFG area]: This error indicates inconsistent internal data. Recalibration of the drive is required, which should be performed by Schneider Electric Product Support.

    InF6 [Internal-option]: This error means the option installed in the drive is not recognized. Check the reference and compatibility of the option.

    InF7 [Internal-hard init.]: This error indicates incomplete initialization of the drive. Turn off and reset the drive to resolve this issue.

    InF8 [Internal-ctrl supply]: This error suggests that the control power supply is incorrect. Check the control section power supply for any issues.

    InF9 [Internal- I measure]: This error indicates incorrect current measurements. Replace the current sensors or the power card, and inspect or repair the drive.

    InFA [Internal-mains circuit]: This error means the input stage is not operating correctly. Perform diagnostic tests via the [1.10 DIAGNOSTICS] menu and inspect or repair the drive.

    InFb [Internal- th. sensor]: This error indicates that the drive's temperature sensor or the braking unit's temperature sensor is not operating correctly. Replace the respective temperature sensor and inspect or repair the drive or braking unit. If there is no braking unit connected, disable the monitoring of this fault via the [Brake res. fault Mgt] (bUb) parameter.

    InFC [Internal-time meas.]: This error suggests a fault in the electronic time measurement component. Inspect or repair the drive to resolve this issue.

    InFE [internal- CPU]: This error indicates an internal microprocessor fault. Turn off and reset the drive, then inspect or repair it.