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10047 Grid Fault IDSP FOVA Inverter Fast Overvoltage Phase A Detection System Severity Level 4 10048 Grid Fault IDSP FOVB Inverter Fast Overvoltage Phase B Detection System Severity Level 4 10049 Grid Fault IDSP FOVC Inverter Fast Overvoltage Phase C Detection System Severity Level 4 In the Grid Connect mode, an AC high overvoltage indicates that the grid is operating under some fault condition or that a local island has formed. In the Stand Alone mode, the AC overvoltage may damage the customer load. In either case, it is important that the inverter be shut down. A high overvoltage condition exists when any of the magnitude estimates of the phase A, B or C voltage inputs exceeds [(√2) x Fast Overvoltage Limit]. If this fast overvoltage limit is reached for more than the fast overvoltage time-out period, an internal warning is logged. At this point the inverter output is suspended and a re-synchronization occurs. If two warnings are logged within the period given by Warning to Error time-out, then the system will shut down and declare errors for all events logged as warnings. Symptom Probable Cause Analysis Repair Solution In Grid Connected modes, the fundamental component of the AC voltage demand for the inverter IPM, is more than the Fast Overvoltage Limit for more than the Fast Overvoltage Timeout period.s The fast over- voltage limit is wrongly set. Make sure that the frame PM is programmed properly, and it is supported by the installed control software. Re-program the frame PM. The fast overvolt- age timeout period is wrongly set. Make sure that the frame PM is programmed properly, and it is supported by the installed control software. Re-program the frame PM. Open/Loose Connection Check the connection of the cable that connects the port J15 of the DPC control board. Tighten cable connections The grid imped- ance is too high. Check the system connection and make sure that the grid impedance is within the limit set by the specification. Fix the problem in the sys- tem connection. 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 Observe Safety Precautions - Refer to Important Safety Instructions for Details 430001-001 Rev A (Apr 2002) 188 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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