Capstone Turbine Corporation
Model C65 Hybrid UPS User’s Manual
Page
46 of 66
400027 Rev A (July 2010)
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.
Under Voltage Delay establishes the time allowed for any phase voltage to fall below the
Under Voltage limit. The delay is adjustable from 0.01 up to 10 seconds in 0.01 second
increments. Initial Factory Setting is 2.0 seconds.
Over Voltage Submenu
Utility Input 2/4
Over Voltage 2/7
528 Vrms
1.00 Sec
Over Voltage submenu shows the line-to-line voltage and associated delay time. If the
RMS voltage between any phases rises above this setting the delay timer is started. If the
voltage has not subsided by the end of this time, the system will enter Emergency Mode.
This is adjustable from 528 down to the Under Voltage setpoint in 1 volt increments. Initial
Factory Setting is 528 Volts.
Over Voltage Delay establishes the time allowed for any phase voltage to rise above the
Over Voltage limit. The delay is adjustable from 0.01 to 10 seconds in 0.01 second
increments. Initial Factory Setting is 1.0 second.
Fast Under Voltage Submenu
Utility Input 2/4
FastUnder Vlts 3/7
240 Vrms
0.16 Sec
Fast Under Voltage submenu shows the line-to-line voltage and associated delay time.
The system will cease power import from or export to the grid within 1 msec if any phase
RMS voltage drops below the Fast Under Voltage setting for the set time delay. If the grid
voltage re-stabilizes within 1 second of the initial under voltage, then the system will
resume its power connection to the grid; otherwise, the system will enter Emergency
Mode. The Fast Under Voltage at which this sequence will be triggered is adjustable from
0 VAC up to the Under Voltage setpoint. The delay time is adjustable from .03 to 1.00
second in .01 second increments. Initial Factory Settings are 240 V line-to-line and .16
second delay.
