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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Telephone: (818) 734-5300 • Fax: (818) 734-5320 • Web:

Service Notice SN0034

Date: From: Subject:

April 2013

Capstone Technical Support

C200 Version 1.70 Software Release

Systems Affected

Capstone Model C200 and C1000 Series (including C600/C800/C1000) MicroTurbine® systems operating released software 1.43 or earlier. Sites running a beta or custom release contact Capstone Customer Service.


Version 1.70 software provides improved battery management and combustion stability as well as support for the new GCM (528557-1XX) and LCM (528558-1XX and 528559-1XX).

Version 1.70 rev A Updates

• Improved battery management

• Improved combustion stability

• Support for new GCM (528557-1XX) and LCM (528558-1XX and 528559-1XX)

• Engine air filter delta-p support added

o 3041PDIFFFAILEDfaultalertsusertooutofrangepressuredifferencebetween inlet and ambient

o 3042CLOGGEDFILTERfaultalertsusertoacloggedengineairinletfilter

• Modified Flameout Load declaration logic to identify fuel related site issues

• Modified fuel controls during injector staging to improve transient response

• Inverter Improvements to share instantaneous transient loads on SA units

• Power Loss and TCIN related improvements to avoid erroneous faults

• Fault trace data improvement to gather site data to help troubleshooting

Recommended Action

• It is recommended that C200 software v1.70 be installed on next site visit for all systems operating released software 1.43 or earlier. Sites running a beta or custom release should contact Capstone Customer Service.

450122 Rev A (April 2013) 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.

Copy is uncontrolled; user is responsible for verifying current revision.

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