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10014 Internal Fault Inverter Overcurrent Phase A System Severity Level 4 10015 Internal Fault Inverter Overcurrent Phase B System Severity Level 4 10016 Internal Fault Inverter Overcurrent Phase C System Severity Level 4 IDSP OC A IDSP OC B IDSP OC C Overcurrent protection prevents application of excessive stress to the Intelligent Power Module (IPM). The software declares an AC overcurrent fault when phase A, B or C current inputs exceed the Overcurrent Limit for any one sample. An automatic recovery is attempted after an overcurrent. Symptom Probable Cause Analysis Repair Solution Phase A, B or C current read- ing is higher than the AC over- current limit. The AC over-cur- rent limit is wrongly set. Make sure that the power board PM is programmed properly, and it is sup- ported by the control software being used. Re-program the power board PM. Open/Loose Con- nection Check the connection of the cable that connects to the port J15 of the DPC con- trol board. Tighten cable con- nections The utility grid experienced a very large disturbance, which caused over- current to the inverter This happens in the Grid Connect mode. The DPC can ride through short period grid transient without reporting any fault. However, prolonged grid transient will cause the inverter overcurrent and/or IPM faults. After the grid becomes normal, restart the system. The soft-start parameters are not set properly. This happens in the Stand-alone mode. Trying to start induction motors without proper settings of the soft-start parame- ters can cause AC overcurrent faults and/ or IPM faults. Adjust the soft- start parameters. Overloads Overloads can cause the IPM fault and AC overcurrent faults. Adjust the load. Load transients Some faults, such short circuits, in the load can cause the AC overcurrent and/ or IPM faults. Fix the problem exiting in the load 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 Troubleshooting Guide 162 511521-002 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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