Pacific UPC-32 Operation Manual page 75

4.6.2.1 EDIT WAVEFORM
EDIT WAVEFORM is used to change or modify waveforms.
From any METER display (V/I, AMPS or POWER), press the fn key to enter SETUP MODE.
From the SETUP display, press 2 to enter WAVEFORM SETUP.
From the WAVEFORM SETUP display, press 1 to enter EDIT WAVEFORM.
EDIT WAVEFORM: NUMBER=16
STARTING PHASE ANGLE =0
ENDING PHASE ANGLE
VOLTAGE IN PERCENT
Press EXECUTE to save a new waveform.
The UPC will stop generating any output while the new waveform is being calculated.
NUMBER:
PHASE ANGLE:
VOLTAGE IN PERCENT
The UPC will attempt to generate the selected waveform at the rms voltage programmed. 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.
Basic sinusoidal waveforms with large dropouts or spikes will change the rms content of the waveform.
Depending on the TRANSIENT WFs setting (page 51), the UPC may cause the basic sine wave to
change in amplitude in order to keep the correct rms voltage. If you wish to keep the basic sine wave at
the same amplitude and add a large dropout, you must program a proportionally lower rms voltage or
DISABLE the RMS calculation . If you wish to keep the basic sine wave at the same amplitude and add
a large spike, you must also program a larger rms voltage.
EXAMPLE: To put a 10% spike on top of a sine wave, first copy waveform 1 to waveform 2 at a 90%
amplitude scale factor to allow 10% more voltage at the peak of the sine wave to accommodate the
spike.. See the example in section 4.6.2.2, Copy Waveform.
From the WAVEFORM SETUP display, press 1, to enter EDIT WAVEFORM.
EDIT WAVEFORM: NUMBER =2
STARTING PHASE ANGLE
ENDING PHASE ANGLE
VOLTAGE IN PERCENT
=0
=-100
Waveforms number 2-16 may be edited.
(waveform 1 is always a sine wave)
The STARTING AND ENDING PHASE ANGLE determine what portion
of the waveform is being edited.
All points on the waveform between the starting and ending
phase angle defined above will change to this new voltage. Enter the
voltage value as a percent, relative to the peak of the waveform, either
positive or negative.
=0
=0
=-100
63
SECTION 4
RANGE=2-16
0-359.9º
0-359.9º
(+/-)0-100%
RANGE=2-16
0-359.9º
0-359.9º
(+/-)0-100%
OPERATION