OPF2 (3 motor phase loss):
- Motor not connected or motor power too low
- Output contactor open
- Instantaneous instability in the motor current
- Check the connections from the drive to the motor
- If an output contactor is being used, parameterize [Output Phase Loss] (OPL) = [Output cut] (OAC), page 196
- Test on a low power motor or without a motor: In factory settings mode, motor phase loss detection is active [Output Phase Loss] (OPL) = [Yes] (YES). To check the drive in a test or maintenance environment, without having to use a motor with the same rating as the drive (in particular for high power drives), deactivate motor phase loss detection [Output Phase Loss] (OPL) = [No] (nO)
- Check and optimize the [IR compensation] (UFr) page 73, [Rated motor volt.] (UnS) and [Rated mot. current] (nCr) parameters, page 65, and perform [Auto tuning] (tUn), page 67.

    OSF (Mains overvoltage):
- Line voltage too high
- Disturbed line supply
- Check the line voltage

    OtF1 (PTC1 overheat):
- Overheating of the PTC1 probes detected
- Check the motor load and motor size
- Check the motor ventilation
- Wait for the motor to cool before restarting
- Check the type and state of the PTC probes

    OtF2 (PTC2 overheat):
- Overheating of the PTC2 probes detected

    OtFL (LI6=PTC overheat):
- Overheating of PTC probes detected on input LI6

    PtF1 (PTC1 probe):
- PTC1 probes open or short-circuited
- Check the PTC probes and the wiring between them and the motor/drive

    PtF2 (PTC2 probe):
- PTC2 probes open or short-circuited

    PtFL (LI6=PTC probe):
- PTC probes on input LI6 open or short-circuited

    SCF4 (IGBT short circuit):
- Power component fault
- Perform a test via the [1.10 DIAGNOSTICS] menu.
- Inspect/repair the drive

    SCF5 (Motor short circuit):
- Short-circuit at drive output
- Check the cables connecting the drive to the motor, and the motor’s insulation
- Perform tests via the [1.10 DIAGNOSTICS] menu.
- Inspect/repair the drive

    SLF1 (Modbus com.):
- Interruption in communication on the Modbus bus
- Check the communication bus
- Check the time-out
- Refer to the Modbus User's Manual

    SLF2 (PC com.):
- Fault communicating with PC-Software
- Check the PC-Software connecting cable
- Check the time-out

    SLF3 (HMI com.):
- Fault communicating with the graphic display terminal
- Check the terminal connection
- Check the time-out

    SPIF (PI Feedback):
- PID feedback below lower limit
- Check the PID function feedback.
- Check the PID feedback supervision threshold and time delay, page 157.

    SSF (Torque/current lim):
- Switch to torque limitation
- Check if there are any mechanical problems
- Check the parameters of [TORQUE LIMITATION] (tLA-) page 166 and the parameters of the [TORQUE OR I LIM. DETECT.] (tId-) fault, page 205).

    tJF (IGBT overheat):
- Drive overheated
- Check the size of the load/motor/drive
- Reduce the switching frequency
- Wait for the motor to cool before restarting

    ULF (Proc. Underload Flt):
- Process underload
- Check and remove the cause of the underload.
- Check the parameters of the [PROCESS OVERLOAD] (ULd-) function, page 211

    CFF (Incorrect config.):
- The current configuration is inconsistent
- Check that there are no card errors.
- In the event of the option card being changed/removed deliberately, see the remarks below
- Return to factory settings or retrieve the backup configuration, if it is valid (see page 224)

    CFI (Invalid config.):
- Invalid configuration
- The configuration loaded in the drive via the bus or communication network is inconsistent.
- [Max frequency] (tFr) has been set at a value higher than 599Hz
- Check the configuration loaded previously
- Load a compatible configuration
- Set [Max frequency] (tFr) at a value lower or equal to 599 Hz

    HCF (Cards pairing):
- The [CARDS PAIRING] (PPI-) function, page 209, has been configured and a drive card has been changed
- In the event of a card error, reinsert the original card
- Confirm the configuration by entering the [Pairing password] (PPI) if the card was changed deliberately

    PHF (Input phase loss):
- Drive incorrectly supplied or a fuse blown
- Failure of one phase
- 3-phase ATV61 used on a single-phase line supply
- Unbalanced load
- This protection only operates with the drive on load
- Check the power connection and the fuses.
- Use a 3-phase line.
- Disable the fault by [Input phase loss] (IPL) = [No] (nO). (page 197)

    PrtF (Power Ident):
- The [Power Identification] (Prt) parameter, page 74, is incorrect.
- Control card replaced by a control card configured on a drive with a different rating
- Enter the correct parameter (reserved for Schneider Electric product support).
- Check that there are no card errors.
- In the event of the control card being changed deliberately, see the remarks below

    USF (Undervoltage):
- Line supply too low
- Transient voltage dip
- Damaged pre-charge resistor
- This protection only operates with the drive running in motor mode
- Check the voltage and the parameters of [Line voltage] (LAC) page 195.
- Check the pre-charge resistors and their fuses