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10053 Grid Fault IDSP FSTUF Inverter Fast Underfrequency Detection System Severity Level 4 This fault is only active in the Grid Connect mode. Fast under frequency indicates that the grid is operating under some fault condition or that a local island has formed. In either case, it is important that the inverter be shut down. Software shall declare a fast under frequency fault when the estimate of AC frequency falls below the Fast Under Frequency Limit for a period of time greater than the Fast Under Frequency Timeout. Symptom Probable Cause Analysis Repair Solution The estimated AC frequency falls below the Fast Under- frequency Limit, for a period of time greater than the Fast Under Frequency Timeout setting. The Fast Under Frequency Limit is wrongly set. Make sure that the power board PM is programmed properly, and it is supported by the control software being used. Re-program the power board PM. The Fast Under- Frequency Time- out is wrongly set. Make sure that the power board PM is programmed properly, and it is supported by the control software being used. Re-program the power board PM. The grid is in fault condition Check the quality of the grid and make sure that no local island has formed. Clear the fault condition of the grid. Faulty DPC Control Board DPC Control Board needs replacing. Replace DPC Control Board (See Document 513176) Faulty DPC Power Board DPC Power Board needs replacing. Replace DPC Power Board 10054 Internal warning IDSP CF Inverter Loss of Inter-DSP Communications System Severity Level 2 The Inverter Control DSP transmits information across the RS-485 communication link to other DSP’s for output waveform synchronization. The inverter control software declares this fault when a new data packet is not received within a set time. Symptom Probable Cause Analysis Repair Solution Faulty Communication. Loose Harness Connections. Verify harness connections to/from each UCB in MultiPac. Tighten harness connections. Failed Harness RS-485 harness has failed. Replace faulty harness. Observe Safety Precautions - Refer to Important Safety Instructions for Details 430001-001 Rev A (Apr 2002) 190 Troubleshooting Guide Capstone Turbine Corporation reserves the right to change or modify without notice the design, the equipment specifications, and/or the contents of this document without incurring any obligation either with respect to equipment previously sold or in the process of construction.PDF Image | Overview SERIES 8000 FAULT CODES Solenoid Faults
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