Atec California-Instruments_MX Series - Manual (Page 3)

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Harmonic Waveform Generation
[Pi controller]
Using the latest DSP technology, the MX
Series programmable controller is capable of
generating harmonic waveforms to test for
harmonics susceptibility. The Windows Graphical
User Interface program can be used to define
harmonic waveforms by specifying amplitude and
phase for up to 50 harmonics. The waveform
data points are generated and downloaded by
the GUI to the AC source through the IEEE-488 or
RS232C bus. Up to 200 waveforms can be stored
in nonvolatile memory and given a user defined
name for easy recall.
All MX-Pi Series configurations offer three phase
waveform generation, allowing independent
phase anomalies to be programmed. It also
allows simulation of unbalanced harmonic line
conditions.
Arbitrary Waveform Generation
Using the provided GUI program or custom
software, the user also has the ability to define
arbitrary AC waveforms. The arbitrary waveform
method of data entry provides an alternative
method of specifying AC anomalies by providing
specific waveform data points. The GUI program
provides a catalog of custom waveforms and also
allows real-world waveforms captured on a digital
oscilloscope to be downloaded to one of the
many AC source’s waveform memories. Arbitrary
waveform capability is a flexible way of simulating
the effect of real-world AC power line conditions
on a unit under test in both engineering and
production environments.
MX Series II
MX Series - AC and DC Transient Generation
The MX Series controller has a powerful AC
and DC transient generation system that allows
complex sequences of voltage, frequency and
waveshapes to be generated. This further
enhances the MX’s capability to simulate AC line
conditions or DC disturbances. When combined
with the multiphase arbitrary waveform
capabilities, the AC and DC output possibilities
are truly exceptional. Transient generation is
controlled independently yet time synchronized
on all three phases. Accurate phase angle control
and synchronized transient list execution provide
unparalleled accuracy in positioning AC output
events.
Transient programming is easily accomplished
from the front panel where clearly laid out menu’s
guide the user through the transient definition
process.
The front panel provides a convenient listing
of the programmed transient sequence and
allows for transient execution Start, Stop,
Abort and Resume operations. User defined
transient sequences can be saved to non-volatile
memory for instant recall and execution at a
later time. The included Graphical User Interface
program supports transient definitions using
a spreadsheet-like data entry grid. A library
of frequently used transient programs can be
created on disk using this GUI program.
Harmonic waveform, Fund., 3rd, 5th, 7th, 9th,11th and 13th.
Two hundred user defined waveforms.
15–135 kVA
Harmonically distorted waveform.
Transient List Data Entry from the front panel.
Transient List Data Entry in GUI program.