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9008 Internal Fault GDSP OC A Generator DSP Phase A Overcurrent System Severity Level 6 9009 Internal Fault GDSP OC B Generator DSP Phase B Overcurrent System Severity Level 6 Overcurrent protection prevents application of excessive stress to the Intelligent Power Module (IPM). The software declares an AC overcurrent fault when phase A or phase B analog inputs exceed 190A for a 208/240VAC system, and 120A for a 480VAC system. Recommended Spare Parts • PM • DPC • IPM Power supply • Engine Symptom Probable Cause Analysis Repair Solution Phase A or Phase B Current Reading Is Higher Than the AC Overcurrent Limit The AC Overcurrent limit is wrongly set. Make sure that the Power Board PM and Control board PM are pro- grammed properly, and are supported by the installed control software. Re-program the Power Board PM and Control Board PM. Open/loose Connection (Flex Harness) Unplug the flex harness between J12 on DPC Control Board and J8 on DPC Power Board. Check for damages. Re-connect the flex harness and ensure the connections are tight. Replace the Harness Loose Connections (Screw Terminals) Check connections at E1, E2, E3 - phases C, B and A (between the DPC Power Board and the generator inductors). The torque on the screws should be 25 lb-in. Check connections between the generator inductors and the power wires leading to the generator. The torque on the Inductors should be 35 lb-in. Open the generator box and check the generator power connections. Check the torque on terminals A, B, and C from the DPC, terminals A, B, and C from the generator, and the E-shape metal connector for the generator Neutral - all should be at 20 lb-in. Tighten wire connections per instructions. (Continued on next page) Observe Safety Precautions - Refer to Important Safety Instructions for Details 430001-001 Rev B (Sep 2002) 158 Troubleshooting Guide Capstone Turbine Corporation reserves the right to change or modify without notice the design, the product 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 9000 FAULT CODES Generator Faults
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