YASKAWA F7 User Manual

Also see for Varispeed f7: Connection manual Programming manual User guide Instruction manual User manual

Contents

Diagnostics & Troubleshooting 6 - 2Fault DetectionWhen the Drive detects a fault, the fault information is displayed on the Digital Operator, the fault contact closes, and themotor coasts to stop. (However, a fault with selectable stopping method will operate according to the stopping methodselected.)• If a fault occurs, take appropriate action according to the table by investigating the cause.• To restart, reset the fault with any of the following procedures:•Set “14: Fault Reset” to a multi-function digital input (H1-01 to H1-06). Then, close and open the input.•Press the RESET key of the Digital Operator.•Shut off the Drive input power, and then turn on again.Table 6.1 Fault Displays and ProcessingDigitalOperator Display Description Cause Corrective ActionBUSOption Com ErrOption Communication ErrorAfter initial communication wasestablished, the connection was lost.Connection was broken and/ormaster controller stoppedcommunicating.Check all connections and verifyall user-side softwareconfigurations.CEMemobus Com ErrModbus Communication ErrorControl data was not received correctly fortwo seconds. This fault is detected whenH5-05=1 and H5-04=0 to 2.Connection was broken and/ormaster has stoppedcommunicating.Check all connections and verifyall user-side softwareconfigurations.CFOut of ControlControl FaultA torque limit was reached continuously for3 seconds or longer during a ramp to stopwhile in open-loop vector control.Motor parameters were not setproperly.Check motor parameters.Perform Auto-Tuning.CPF00COM-ERR(OP&INV)Operator Communication FaultTransmission between the Drive and theDigital Operator was not established within5 seconds after supplying power.Digital Operator cable was notsecurely connected, DigitalOperator defective, and/orcontrol board defective.Remove the Digital Operator, andthen reinstall it.External RAM of CPU was defective. Control circuit was damaged. Cycle power to the Drive.Replace the control board.CPF01COM-ERR(OP&INV)Operator Communication FaultAfter communication started with theDigital Operator, communication stoppedfor 2 seconds or more.Digital Operator cable was notsecurely connected, DigitalOperator defective, and/orcontrol board defective.Remove the Digital Operatoronce and then reinstall it.Cycle power to the Drive.Replace the Digital Operator and/or the control board.CPF02BB Circuit ErrBaseblock Circuit FaultBaseblock circuit fault at power-up.Gate array hardware failureduring power-up.Perform a factory initialization.Cycle power to the Drive.Replace the control board.CPF03EEPROM ErrorEEPROM FaultCheck sum was not valid.Noise or spike was on thecontrol circuit input terminals.Perform factory initialization.Cycle power to the Drive.Replace the control board.CPF04Internal A/D Err CPU Internal A/D Converter Fault Noise or spike was on thecontrol circuit input terminals.Perform factory initialization.Cycle power to the Drive.Replace the control board.