User Manual – Rev B
FCS Series II
4.4 Waveform Management (-ADV Option required)
The FCS Series II with –ADV option employs independent arbitrary waveform generators for
each phase. This allows the user to create custom waveforms. In addition, three standard
waveforms are always available. This chapter covers issues that relate to defining, downloading
and managing custom waveforms.
nly support arbitrary waveform generation if the –ADV option is installed.
ard to section 4.5 as the next sections do not apply.
4.4.1 S
FCS Series II models o
If not, you can skip forw
tandard Waveforms
F
applications sine wave
ne wave is one of the standard
w
rovided on all FCS Series
wave is always available
and is the default waveform at power-on. Two more standard waveforms are available, square
a
or most AC
, a
shape is used. The si
II models. This standa
aveforms p
rd sine
nd clipped.
Figure 4-7: Selecting a Wa
T
provides a high freq
relative fast rise and fall
t
ard square
wave has been kept within the amplifier’s
increased, the relative contribution of higher ha
T
wave may be used to si
nit under test.
armonic distortion level may b
P LEV field
irectly below the FUNC entry.
ta points and reload the waveform register with the newly
e
elay and
4.4.2 P
veform
he square wave
uency content wavefo
imitations, th
rm with
imes. Due to AC amplifier bandwidth l
e frequency content of the stand
capabilities. As the fundamental frequency is
rmonics is reduced.
he clippe
he total h
d sine
mulate voltage distortion levels to the u
e programmed in percent using the CLI
T
d
Note that changing the distortion level of the clipped waveform forces the AC source to
regenerate the clipped sine wave’s da
requested data. This process requires the output to be dropped briefly. To avoid interrupting th
voltage output to the unit under test, set the clip level needed before closing the output r
do not change it while the EUT is under power. You can then toggle between the clipped sine
wave and any other waveform in memory without interrupting the output.
hase Selection
Figure 4-8: Selecting Waveforms for Single Phase or All Phases
Different waveforms may be selected for each phase. The number of custom waveforms from
which to select remains 50 but each phase can be assigned a different custom or standard
waveform. The specific output phase for which the wave shape is programmed is selected with
the
Phase
key on the front panel. To select the same wave shape for all three phases in a
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77
Summary of Contents for FCS Series II
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