YASKAWA 1000-Series Technical Manual

Also see for 1000-Series: Installation manual Installation manual

Contents

13 TroubleshootingYASKAWA ELECTRIC SIEP C730600 58A 1000-Series Option SI-EN3 Technical Manual EN 4913 Troubleshooting Drive-Side Error CodesDrive-side error codes appear on the drive digital operator. Causes of the errors and corrective actions are listed inTable 15. For additional error codes that may appear on the drive digital operator, refer to the drive Technical Manual. 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 15 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• Inspect items that can minimize the effects of electrical 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 EtherNet/IP 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.Connection Time-out • The option Requested Packet Interval (RPI) timer timed out• Make sure that RPI time is set properlyDuplicate IP Address Check if the option shares IP Address with at least one other node.Check the setting values of F7-01 to F7-04.LED Operator Display Fault NameEF0 Option Card External FaultThe alarm function for an external device has been 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.PLC is in the Idle Mode.• Set the PLC to the Run Mode.• Set the drive parameter F6-54 to 0 (Enabled) not to detect errors while the PLC is in the IdleMode.LED Operator Display Fault NameoFA00 Option Card Connection Error (CN5-A)Option is not properly connected.Cause Possible SolutionNon-compatible option connected to the drive Connect an option that is compatible with the drive.