The drive is attempting to operate a specializedmotor or a motor larger than the maximum sizeallowed• Check the motor capacity.• Ensure that the rated capacity of the drive is greater than or equal to the capacity rating found on themotor nameplate.Magnetic contactor (MC) on the output side ofthe drive has turned on or off Set up the operation sequence so the MC does not trip while the drive is outputting current.V/f setting is not operating as expected• Check the ratios between the voltage and frequency.• Set parameters E1-04 through E1-10 appropriately.• Lower the voltage if it is too high relative to the frequency.Excessive torque compensation • Check the amount of torque compensation.• Reduce the torque compensation gain (C4-01) until there is no speed loss and less current.Drive fails to operate properly due to noiseinterference• Review the possible solutions provided for handling noise interference.• Review the section on handling noise interference on page 334 and check the control circuit lines, maincircuit lines, and ground wiring.Overexcitation gain is set too high • Check if the fault occurs simultaneously with overexcitation function operation.• Consider motor flux saturation and reduce the value of n3-13 (Overexcitation Deceleration Gain).Run command was applied while motor wascoasting• Set b3-01 to 1 to enable Speed Search at Start.• Program the Speed Search command input through one of the multi-function contact input terminals(H1-oo = 61 or 62).The rated output current of the drive is toosmall Use a larger drive.Digital Operator Display Fault NameoFA00 Option Card Connection Error at Option Port CN5-AOption compatibility errorCause Possible SolutionThe option card installed into port CN5-A isincompatible with the drive Check if the drive supports the option card to be installed. Contact Yaskawa for assistance.Digital Operator Display Fault NameoFA01 Option Card Fault at Option Port CN5-AOption not properly connectedCause Possible SolutionThe option card connection to port CN5-A isfaulty• Turn off the power and reconnect the option card.• Check if the option card is properly plugged into the option port. Make sure the card is fixed properly.• If the option is not a communication option card, try to use the card in a different option port. If theoption card works properly in a different option port, CN5-A is damaged, and the drive requiresreplacement. If the error persists (oFb01 or oFC01 occur), replace the option card.Digital Operator Display Fault Nameto oFA03 to oFA06 Option Card Error Occurred at Option Port CN5-A, oFA10, oFA11to oFA12 to oFA17 Option Card Connection Error (CN5-A)to oFA30 to oFA43 Communication Option Card Connection Error (CN5-A)Cause Possible SolutionOption card or hardware is damaged• Cycle power to the drive.• If the problem continues, replace the control board or the entire drive. Contact Yaskawa or a Yaskawarepresentative for instructions on replacing the control board.Digital Operator Display Fault NameoFb00 Option Card Fault at Option Port CN5-BOption compatibility errorCause Possible SolutionThe option card installed into port CN5-B isincompatible with the drive Make sure the drive supports the option card to be installed. Contact Yaskawa for assistance.A communication option card has beeninstalled in option port CN5-B Communication option cards are only supported by option port CN5-A. It is not possible to install morethan one communication option.6.4 Fault DetectionYASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual 3016 Troubleshooting
