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10011 Internal Fault IDSP UV A Inverter Phase A Undervoltage System Severity Level 4 10012 Internal Fault IDSP UV B Inverter Phase B Undervoltage System Severity Level 4 10013 Internal Fault IDSP UV C Inverter Phase C Undervoltage System Severity Level 4 In the Grid Connect mode, the AC undervoltage indicates that the grid is operating under some fault condition or that a local island has formed. In the Stand-alone mode, the AC undervoltage may cause the customer loads to malfunction. In either case, it is important that the inverter be shut down. The software declares an AC undervoltage fault, when any of the magnitude estimates of the phase A, B or C voltage inputs falls below [(√2) x AC Min Voltage Limit], for a period of time greater than the AC Undervoltage Time-out. Symptom Probable Cause Analysis Repair Solution Phase A, B or C voltage read- ing is lower than the AC under-voltage limit. The AC under- voltage limit is wrongly set. Make sure that the power board PM is pro- grammed properly, and it is supported by the control software being used. Re-program the frame PM or reset the limits. Debris or water in package Inspect the DPC Power Board, Control Board and the cables connecting them for any material that could short connections. Clean DPC Phase A, B or C voltage is too low. Inspect the grid voltage. If there is any transformer between the system and the grid, make sure that its wire connections are correct. Solve the problem of the grid. The neutral is not grounded prop- erly. Inspect the grounding wires. In the Grid Connect application, the neutral should not be grounded. However, the neutral must be grounded in the Stand-alone application. Correct the error in grounding. The system failed before it is syn- chronized to the grid In the Grid Connect mode, if the system failed before it is synchronized to the grid, all the following faults will be set: Over- voltage and undervoltage in all 3 phases. Overfrequency and under- frequency faults. Generally, one or more other faults will also be set, and the extra fault infor- mation gives the true reason of the failure. Solve the prob- lems indicated by the other fault codes. Faulty DPC Con- trol Board DPC Control Board needs replacing Replace DPC Con- trol Board Faulty DPC Power Board DPC Power Board needs replacing Replace DPC Power Board Observe Safety Precautions - Refer to Important Safety Instructions for Details 511521-002 161 Troubleshooting Guide This information is confidential and proprietary to Capstone. Neither this document nor the information contained herein shall be copied, disclosed to others, or used for any purposes other than the specific purpose for which this document was delivered.PDF Image | Overview SERIES 10000 FAULT CODES Inverter Faults
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