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Capstone Stand Alone Interlock Capstone Turbine Corporation MicroTurbine User’s Manual The Stand Alone Interlock consists of a pair of 5-volt dry circuit contact terminals. A low resistance closed circuit between these terminals permits Stand Alone operation. An opened circuit prevents Stand Alone operation. The terminals are found in the Communications Bay at the rear of the MicroTurbine enclosure. Your Capstone Authorized Service Provider should make this electrical connection. Stand Alone Mode Enable To enable Stand Alone mode, the MicroTurbine must be powered on (set the Battery Switch to ON) and the Stand Alone Interlock closed. To enable Stand Alone mode from the display panel requires logging on with a password; then navigate to the System Data Menu, System Configuration submenu, and the Power Connect submenu. Select Stand Alone mode, then press the ACCEPT button. If the Stand Alone Interlock is open, the system will accept the command but post an SA Interlock fault. If no battery is detected, an internal No Battery fault will be reported. Stand Alone Battery The Stand Alone MicroTurbine includes a large battery pack which stores energy for starting the MicroTurbine when disconnected from the electric utility grid, and which provides an electrical buffer for sudden increases or decreases in load during Stand Alone operation. Management of the battery and its state of charge is automatic within the MicroTurbine. An awareness of these battery management functions will promote an understanding of why the system may appear to behave autonomously. For example, the MicroTurbine will always attempt to fully recharge the battery after a user commanded shut down and before the MicroTurbine enters the cool down state. Stand Alone Battery Isolation Switch The Stand Alone MicroTurbine includes a battery isolation switch to disable the MicroTurbine for service or transport. The switch is found behind the kick panel at the bottom front of the enclosure. Set the switch to ON for system operation. Be sure to switch the breaker to OFF when not operating the system to maximize battery life. System Sleep in Stand Alone Mode Reducing battery draw to near zero during prolonged periods of non-use can extend the MicroTurbine battery charge significantly. This is called Sleep Mode. Sleep Mode is automatic, but the time of inactivity can be adjusted. Refer to the Display Panel section on Auto Sleep mode to adjust this timer. If the battery isolation switch is set to ON, and the display panel is dark, the system is most likely in Sleep Mode. In Sleep Mode, the battery pack needs to be recharged periodically. Refer to the section on Battery Maintenance for more data on recharging the Battery. Waking a Stand Alone MicroTurbine If the Stand Alone system is in Sleep Mode, pressing the BATT START button at the far left of the Display Panel (for less than or equal to 2 seconds) will wake it up. If communicating with the MicroTurbine remotely using a modem connected to the User Interface Port, the modem ring indicator will wake up a sleeping Stand Alone system. 400001-001 Rev. C (February 2005) Page 35 of 56 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. CAUTION Permanent closure of the battery start contacts (in the following paragraph) will completely discharge the battery. Therefore, the battery start contacts may only be closed for a period of 0.1 to 2.0 seconds.PDF Image | 2002 Capstone User Guide
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