YASKAWA SI-EP3/V Installation Manual
Also see for SI-EP3/V: Technical manual
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Contents |
YASKAWA TOEP YEACOM 06A V1000 Option PROFINET SI-EP3/V Installation Manual 5911 Troubleshooting11 Troubleshooting◆ Drive-Side Error CodesDrive-side error codes appear on the drive digital operator. Causes of the errors andcorrective actions are listed in Table 14. For additional error codes that may appear on thedrive digital operator, refer to the drive Technical Manual available athttp://www.yaskawa.com.■ FaultsBoth bUS (Option Communication Error) and EF0 (External Fault Input from the option)can appear as an alarm or as a fault. When a fault occurs, the digital operator ALM LEDremains lit. When an alarm occurs, the ALM LED flashes.If communication stops while the drive is running, use the following questions as a guide tohelp 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 14 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 tothe option (b1-01 = 3 or b1-02 = 3).Cause Possible SolutionMaster controller (PLC) has stoppedcommunicating.Check that power is supplied to the PLCCheck that PLC is not in program modeCommunication cable is not connectedproperly.Check for faulty wiringCorrect any wiring problemsA data error occurred due to noise.Check the various options available to minimize the effects of noiseCounteract noise in the control circuit, main circuit, and ground wiringIf a magnetic contactor is identified as a source of noise, install a surgeabsorber to the contactor coilMake sure the cable used meets the option requirementsMake sure the option ground wire is connected between option FE terminaland the drive ground terminal connected to earth groundOption is damaged. If there are no problems with the wiring and the error continues to occur,replace the option. |
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