DUAL MODE CONTROLLER (DMC) USER’S MANUAL

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DUAL MODE CONTROLLER (DMC) USER’S MANUAL ( dual-mode-controller-dmc-users-manual )

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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Dual Mode Controller (DMC): User’s Manual MODE Switch The MODE switch is a rotary switch that allows dispatch settings of the MicroTurbines for the Grid Connect Only mode, Automatic Transition mode, or for the Stand Alone Only mode. Table 2 summarizes the MODE switch position options. Table 2. MODE Switch Settings Mode Switch Position Description GRID MicroTurbines may be dispatched in Grid Connect mode only. During a utility outage, the MicroTurbines shut down and protected loads do not receive power. AUTO The MicroTurbines are dispatched automatically in Grid Connect mode when the utility lines are energized, and in Stand Alone mode during a utility outage. When a utility outage occurs, protected loads are without power for up to 10 seconds.1 When utility power is restored, the protected loads are reconnected to the utility within 5 seconds. However, the MicroTurbine(s) may be down (offline) for up to 45 minutes. TURBINE The MicroTurbines may be dispatched in Stand Alone only. MicroTurbines and protected loads are electrically isolated from the utility if 12 or 24VDC is available to trip the Isolation switch (M1). MICROTURBINE AWAKE Indicator Lamp The MICROTURBINE AWAKE lamp (LP3) illuminates when the MicroTurbine controls are energized. In a MultiPac system, this lamp illuminates when the master MicroTurbine controls are energized. LOAD POWER OK Indicator Lamp The LOAD POWER OK lamp (LP1) illuminates when protected loads are energized by either the utility or the MicroTurbines. LINE POWER OK Indicator Lamp The LINE POWER OK lamp (LP2) illuminates when the utility voltages are at an acceptable level and of the correct rotational sequence (L1-L2-L3). If the LINE POWER OK lamp does not illuminate when the DMC is first energized by the utility, check the utility supply for both correct voltage and for correct rotational sequence. 1 The 10 second maximum transition to Stand Alone mode after a utility outage is due to the fast transfer capability. The DMC configuration identified by the part number suffix -001 does not have fast transfer capability and takes approximately one minute to complete this sequence. DMC models with part number suffix -001 are upgraded to the fast transfer capability by Work Instruction 440123. 400009 Rev A (May 2008) Page 11 of 21 Capstone reserves the right to change or modify, without notice, the design, specifications, and/or contents of this document without incurring any obligation either with respect to equipment previously sold or in the process of construction.

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