bLF [Brake Control Fault]
- Brake release current not reached.
- Brake engage frequency threshold [Brake engage freq] (bEn) is set to [No] (nO) (not set) whereas the brake control [Brake assignment] (bLC) is assigned.
- Check the drive/motor connection.
- Check the motor windings.
- Check the [Brake release I FW] (Ibr) setting in the [APPLICATION FUNCT.] (FUn-) menu, page 85.
- Apply the recommended settings for [Brake engage freq] (bEn), pages 84 and 85.

CrF [Precharge Fault]
- Precharge relay control or damaged precharge resistor.
- Replace the drive.

EEF [EEPROM Fault]
- Internal memory.
- Check the environment (electromagnetic compatibility).
- Replace the drive.

IF1 [Internal Fault]
- Unknown rating.
- Replace the drive.
- Restart the drive.
- Contact a Schneider Electric representative.

IF2 [Internal Fault]
- HMI card not recognized.
- HMI card incompatible.
- No display present.

IF3 [Internal Fault]
- EEPROM.

IF4 [Internal Fault]
- Industrial EEPROM.


OCF [Overcurrent]
- Parameters in the [SETTINGS] (SEt-) and [MOTOR CONTROL] (drC-) menus are incorrect.
- Inertia or load too high.
- Mechanical locking.
- Check the parameters in [SETTINGS] (SEt-), page 32, and [MOTOR CONTROL] (drC-), page 41.
- Check the size of the motor/drive/load.
- Check the state of the mechanism.

SCF [Motor Short Circuit]
- Short-circuit or grounding at the drive output.
- Significant ground leakage current at the drive output if several motors are connected in parallel.
- Check the cables connecting the drive to the motor, and the motor insulation.
- Reduce the switching frequency.
- Connect chokes in series with the motor.

SOF [Overspeed]
- Instability or driving load too high.
- Check the motor, gain, and stability parameters.
- Add a braking resistor.
- Check the size of the motor/drive/load.

tnF [Auto Tuning Fault]
- Special motor or motor whose power is not suitable for the drive.
- Motor not connected to the drive.
- Use the L ratio or the [Var. torque] (P) ratio (see [U/F mot 1 selected] (UFt), page 44).
- Check that the motor is present during auto-tuning.
- If an output contactor is being used, close it during auto-tuning.

CnF [Network Fault]
- Communication detected fault on the communication card.
- Check the environment (electromagnetic compatibility).
- Check the wiring.
- Check the time out.
- Replace the option card.
- See the [CANopen fault mgt] (COL) parameter page 95 to define the stop mode with a (CnF).

COF [CANopen Fault]
- Interruption in communication on the CANopen bus.
- Check the communication bus.
- Refer to the relevant product documentation.

EPF [External Fault]
- Depending on user.

LFF [4-20mA Loss]
- Loss of the 4-20 mA reference on input AI3.
- Check the connection on input AI3.

ObF [Overbraking]
- Braking too sudden or driving load.
- Increase the deceleration time.
- Install a braking resistor if necessary.
- Activate the [Dec ramp adapt.] (bra) function, page 64, if it is compatible with the application.