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Publication Title | Model C60 Software Version 4.24 Release Notes

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Capstone

Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Telephone: (818) 734-5300 • Facsimile: (818) 734-5320 • Website: www.microturbine.com

Service Bulletin SB0070

Date: From: Subject:

Affected

All Capstone Model C60 MicroTurbine systems and Model C60 ICHP Systems, as follows:

• MicroTurbines with v4.23 software may be upgraded to v4.24 during a site visit or through remote dial-up using CRMS.

• MicroTurbines with v4.21 software experiencing 4011 Frame EEPROM Write warnings may be upgraded to v4.24 during a site visit or through remote dial-up using the CRMS.

• MicroTurbines with v3.91 software but WITHOUT common exhaust ducting may be upgraded to v4.24 during a site visit or through remote dial-up using the CRMS – upgrading is recommended.

• MicroTurbines with v3.91 software and WITH common exhaust ducting MUST be upgraded to v4.24 software.

• MicroTurbines with v3.93, v3.94, and v3.95 software deviations MUST be upgraded to v4.24 software.

• ICHP systems with v4.02 or v4.10 software may be upgraded to v4.24 during a site visit or through remote dial-up using the CRMS – upgrading is recommended.

• ICHP systems with v4.00, v4.03 and v4.04 software deviations MUST be upgraded to v4.24 software.

Summary

Version 4.24 software replaces v4.23 and is released to support all Model C60 MicroTurbines and ICHP systems. Improvements are summarized as follows:

Engine Flameout Issues

The following changes apply only if the new ECM brake resistor kit (610090) HAS been installed. If the brake resistor HAS NOT been installed, v4.24 system software will detect this and maintain idle speed and voltage setpoints at previous levels.

1. Adds new brake resistor constants to internal data structures, based on installation of the new brake resistor and new ECM assembly part number.

2. Reduces Stand Alone offload rate to allow for a longer and smoother offload. Total time for a full offload from 96,000 to 49,000 rpm (new idle speed value) is now ~90 seconds.

3. Restores injector switch points to original default values, due to the resultant offload becoming much slower and smoother.

450050-001 Rev A (September 2004) Page 1 of 3

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.

September 2004

Capstone Technical Support

Model C60 Software Version 4.24 Release Notes

Image | Model C60 Software Version 4.24 Release Notes



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