YASKAWA SI-EP3/V Technical Manual

Also see for SI-EP3/V: Installation manual

Contents

10 TroubleshootingYASKAWA SIEP YEACOM 06 V1000 Option PROFINET SI-EP3/V Technical Manual 4810 Troubleshooting Drive-Side Error CodesDrive-side error codes appear on the drive digital operator. Causes of the errors and corrective actions are listed inTable 29. For additional error codes that may appear on the drive digital operator, refer to the drive Technical Manualavailable athttp://www.yaskawa.com. FaultsBoth bUS (Option Communication Error) and EF0 (External Fault Input from the option) can appear as an alarm or as afault. When a fault occurs, the digital operator ALM LED remains lit. When an alarm occurs, the ALM LED flashes.If communication stops while the drive is running, use the following questions as a guide to help remedy the fault:• Is the option properly installed?• Is the communication line properly connected to the option? Is it loose?• Is the controller program working? Has the controller/PLC CPU stopped?• Did a momentary power loss interrupt communications?Table 29 Fault Display and Possible SolutionsLED Operator Display Fault NamebUSOption Communication Error.After establishing initial communication, the connection was lost.Only detected when the run command or frequency reference is assigned to the option (b1-01 =3 or b1-02 = 3).Cause Possible SolutionMaster controller (PLC) has stoppedcommunicating.• Check that power is supplied to the PLC• Check that PLC is not in program modeCommunication cable is not connected properly. • Check for faulty wiring• Correct any wiring problemsA data error occurred due to noise.• Check the various options available to minimize the effects of noise• Counteract noise in the control circuit, main circuit, and ground wiring• If a magnetic contactor is identified as a source of noise, install a surge absorber to thecontactor coil• Make sure the cable used meets the option requirements• Make sure the option ground wire is connected between option FE terminal and the driveground terminal connected to earth groundOption is damaged. If there are no problems with the wiring and the error continues to occur, replace the option.LED Operator Display Fault NameEF0 External Fault Input from the option.The alarm function for an external device is triggered.Cause Corrective ActionAn external fault is being sent from the uppercontroller (PLC).• Remove the cause of the external fault• Reset the external fault input from the PLC deviceProblem with the PLC program. Check the program used by the PLC and make the appropriate corrections.LED Operator Display Fault NameoFA00 Option Fault.Option is not properly connected.Cause Possible SolutionNon-compatible option connected to the drive. Connect an option that is compatible with the drive.