Pacific Power Source UPC-32, Руководство по эксплуатации

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SECTION 1 GENERAL
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1.3 GENERAL PRODUCT DESCRIPTION
1.3.1 UPC DESCRIPTION
The UPC controller is a highly versatile one, two, or three phase signal generator. It is designed to be
installed into Pacific Power Source's AMX/ASX Series Power Sources or into a System Control Unit (SCU)
for use with other power sources, and is interchangeable with other UPC/UMC Series controllers.
The user may store up to 99 “Programs” in the UPC memory. Each program contains steady-state
parameters and may include transient values as well. There are also pre-stored programs that simplify
generation of MIL-STD 704D transients.
Auxiliary and Modulation inputs are provided to allow control of the power source output from a variety of
external control sources. The AUX inputs will accept signals from a waveform generator. The AM inputs
allow control of the output amplitude by varying a control voltage.
The signal generator section produces one (UPC-12) or three (UPC-32) signals representing the output
waveforms of the power source. The UPC controllers produce steady-state signals - a base set of volts,
frequency, waveforms and phase angle - and dynamic signals which change with time. The signal
generator of a UPC can produce transient events lasting from microseconds to hours.
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Each signal can be any of the 16 waveforms stored in memory.
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Waveform 1 is a sine wave and cannot be altered; the other 15 waveforms can be altered by the
user to produce any arbitrary wave function.
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The phase angle relation between the three output vectors may be varied.
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The amplitude of each vector may be varied together or independently.
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The frequency of all output vectors is the same and is controllable from 20 to 5000 Hz.
The Display of the UPC utilizes a 160 character Backlit LCD, which selectively meters operating
parameters or displays menus which interactively prompt the operator and assist in loading programs or
editing. On completion of any programming or editing function, the display automatically reverts to the
metering display.
Complete parameter metering is provided by the UPC. Output volts (line-to-line and line-to-neutral),
current (true RMS, peak, and crest factor), KVA, KW, and Power Factor can all be displayed. Frequency is
indicated based on the set value. Internal or External voltage metering sense points can be selected.
Internal metering displays the output voltage as metered at a point prior to the Output Relays. This allows
the output voltage to be checked prior to applying power to a load. External metering allows the output
voltage to be monitored at a remote point outside of the power source. With CSC enabled (see below),
external sense can be used to maintain an accurate voltage at any remote point, compensating for line
voltage drops.
The CSC (Continuous Self Calibration) feature provides automatic compensation for real losses due to
output transformers and distribution lines by maintaining an accurate COMMAND (program) voltage at the
metered sense point. CSC may be enabled or disabled at the user's discretion.
Externally referenced Metering calibration is simplified by internal software that allows external
measurements to be entered directly into the front panel or Remote Interface. Correction values
(kFactors) are then calculated and stored in the UPC's memory.
An output transformer ratio may be programmed into the UPC for controlling and metering voltages greater
than the power source direct coupled range.