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

Service Bulletin SB0095

Date: From: Subject:

February 2009

Capstone Technical Support

C65 UL1741 Software Version 5.03 Release

Systems Affected

All Capstone Model C65 UL1741 MicroTurbine® systems.


C65 UL1741 Software v5.03 replaces v5.02. Capstone recommends that all C65 UL1741 microturbine systems update to v5.03.

Primary changes in v5.03 relate to bug fixes. Additional changes are detailed below.

Version 5.03 Updates

 A user password is now required to access the Stored Demand display menu item in the Grid Connect menu (refer to Figure 1 in this document for display panel menu hierarchy). The password is the standard default password.

 Permissions for the Fuel Type Command have changed from Depot to Maintenance (one level lower). Therefore, a user with Maintenance permissions may now change the fuel type in CRMS, whether using the drop down menus or typing the six letter command.

 Resolved nuisance occurrence of 7016 GRID SYNC Fault.

 The output relay function Contactor Closed definition has been modified. Other

than solenoid status, the DC bus voltage needs to be greater than 720 VDC.

 There is no longer a delay when a Start command is issued while the system is in a Shutdown state.

 Urgent battery state of charge (SOC) has changed from 50% to 70%. This resolves nuisance occurrences of 6015 and 6016 POWER FOLDBACK Faults.

450085 Rev A (February 2009) Page 1 of 3 Capstone reserves the right to change or modify, without notice, the design, specifications, and/or contents of this document without incurring any obligation with respect to equipment either previously sold or in the process of construction.

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