Pacific UPC-32 Operation Manual page 64

SECTION 4 OPERATION
4.5.2 TRANSIENT EDITING (cont'd)
The following may be programmed:
SEGMENT #:
In the upper right hand corner the total number of segments are displayed. If you wish to reduce
the number of segments in this transient you may enter the last segment number there, then you
must press STORE to save the transient.
T (Segment time):
If cycle-based transients are desired, entering 0 in the first segment will make the transient a
cycle based transient. The display will then show "1 CYCLE". The time for each segment will
then be 1 period of the output waveform. This is useful for substituting different waveforms on a
cycle by cycle basis.
Va, Vb, Vc:
Direct-Coupled output = 0 to 150 volts rms in steps of 0.1 volts
Transformer-coupled output = 0 to 375 volts rms in steps of 0.5 volts (XFMR Ratio is 2.5)
FREQ:
WFa, WFb, WFc:
Depending on the TRANSIENT WFs setting (see page 51), the UPC may attempt to generate
the selected waveform at the rms voltage programmed at the beginning of each segment.
Because of the difference in the rms voltage content of various waveforms the UPC may not be
able to reproduce the waveform at the voltage desired. If the waveform is peak-voltage-limiting,
then selecting transformer coupled output with a higher ratio may solve this problem.
TRANSIENT EVENTS: Enter the number of times you wish the transient to repeat. 0 causes the
Segments define each "event" of a transient. Each segment provides a linear
transition in volts and/or frequency in the time indicated. Different waveforms
may also be switched in during each segment.
Normally don't enter a number here. It will automatically increment as required.
Up to 100 segments may be used to generate a transient. The total number of
segments for all programs can not exceed 1000. If you want to edit a specific
segment you may enter that segment number.
Enter a time from 0.0002 to 300 seconds for a time-based transient.
Line to neutral voltages are entered for 1Φ and 3Φ Forms. Line to Line
voltages are entered for 2Φ operation.
Any desired output frequency from 20.00 to 5000 Hz. may be entered.
RANGE
20.00 - 99.99 Hz
100.0 - 999.9 Hz
1000 – 5000 Hz
Select the desired output waveform. Waveform 1 is always a sine wave.
Waveform 2-16 may be copied and/or edited as desired using the SETUP (fn)
functions.
transient to repeat continuously, until the TRANS key is pressed again.
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RESOLUTION
0.01 Hz
0.1 Hz
1 Hz