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3021 Internal Warning PAMB FAILED Ambient Pressure Sensor Failed System Severity Level 2 Ambient Pressure inputs are expected to measure within a specified range. Values outside this range indicate hardware circuitry problems. A value greater than 117.24 kPa (17.0 psia) or less than 27.59 kPA (4.0 psia) causes an ambient pressure open condition to be declared. The system will continue operating using the default value of 14.696 psia. Recommended Spare Parts • DPC Control Board • UCB • Option Harness Symptom Probable Cause Analysis Repair Solution No Power to Sensor E-Stop Jumper Not Installed Sensor power is provided through switched power where both Global and Local E-Stop must have contact closure. Make sure contact is made on both Global and Local E-stop connections on the UCB. Engine not rotating at start-up, or engine over/under speed. Check for other faults - For example, 10039. Troubleshoot other faults Option Cable Not Connected Power to the sensor is provided through the Option cable that connects between the DPC (J6) and UCB (J8). Verify continuity between DPC (J6) and UCB (J8). Secure connections of Option Cable at UCB and DPC Option Port. Option Cable Failure Use a DMM and verify that a voltage of greater than10 volts is present across pins A3 (PWR) and A6 (GND) of J8 on the Option Cable. Ensure the DPC is communicating with the UCB by toggling the Out- put Relays and verifying the relays are opening and closing (monitor the LED or measure the resistance of the relay). Replace Option Cable No Power from DPC Check diode D20 on DPC Control Board to see if not lit. Replace DPC Control Board (See Document 513176) (Continued on next page) Observe Safety Precautions - Refer to Safety Instructions for Details 430001-001 Rev D (June 2003) 4-16 Model C30 Troubleshooting Guide This information is proprietary to Capstone Turbine Corporation. 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. Capstone 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 | Capstone SERIES 3000 FAULT CODES Sensor Faults
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