Atec CSW5550 User Manual

	California Instruments CSW Series		5550–33300 VA
	High Performance Programmable AC and DC Power Source		156–312 V
	• Combination AC and DC Power Source			8–288 A
	• 40-5,000Hz Output Frequencies
	• Arbitrary and Harmonic Waveform Generation		208	230	400
	• Built-In Digital Power Analyzer
	• Scope Capture Capability
	• Power Programming Software
	• Constant Power Mode
	• Multi-Box Option
	Introduction	Applications
	The CSW Series represents a new generation of	The CSW is designed for testing today’s
	AC/DC power sources that address the increasing
		complex electronics, including avionics,
	demands on test equipment to perform additional
		telecommunications and commercial electronics
	functions at a lower cost. By combining a flexible
		requiring low profile, light weight power supplies
	AC/DC power source with a high performance
	power analyzer, the Compact CSW Series is	Other applications include:
	capable of handling complex applications that	• Testing for real world power conditions using
	have traditionally required multiple systems. The
		different waveforms on all 3 phases (including
	sleek integrated approach of the CSW avoids
		DC)
	cable clutter that is commonly found in test
		• Load susceptibility testing with sequence or
	systems. All connections are made internally and
		event programming and multiple voltage
	the need for digital multimeters, power harmonics
		harmonics
	analyzers, and current shunts or clamps is
		• Power line disturbance simulation testing
	eliminated.
		• MIL-STD-704, DO-160, B787 and ABD100
	Since many components in the CSW are shared	avionics testing
	between the AC/DC source and the power	• Power supply testing for AC-DC, DC-DC
	analyzer, the total cost of the integrated system is	converters and UPS’s
	less than the typical cost of a multiple unit system.	• Transients on 12 & 24 VDC for automotive
	Easy to use controls	applications
	The CSW Series is DSP controlled and can be	AC, DC or AC+DC Output
	operated from an easy to use front panel keypad.
		A direct coupled, transformerless design allows
	Functions are grouped logically and are directly
		AC and DC on separate phases or on the same
	accessible from the keypad. This eliminates the
		phase. The CSW can be used as a true DC power
	need to search through various levels of menus
		supply. High DC content waveforms (up to
	and/or soft keys. A large analog control knob
		312 volts) can be created with no derating of	AMETEK
	can be used to quickly slew output parameters.
		output power, even with 100% reactive loads,
	This knob is controlled by a dynamic rate change		Programmable Power
		eliminating the need for a separate DC supply.
	algorithm that combines the benefits of precise		9250 Brown Deer Road
		Waveform programming is easily accomplished
	control over small parameter changes with quick		San Diego, CA 92121-2267
		using the Graphical Users Interface software.
	sweeps through the entire range.		USA
		Waveforms can be uploaded and modified from
		a digital scope. The waveforms can then be
		downloaded to the CSW and output to precisely
		simulate real-world conditions.
	858.458.0223	[e-mail]	01072013

CSW Series

Flexability in Power Ranges

The CSW Series is based on a 5,550VA power source. The CSW features selectable Single or Three Phase output via front panel menu

selection or via remote control interface. Utilizing

Master / Auxilary arrangement the CSW offers the flexibility to paralled up to power levels of

33,300VA

High Crest Factor

With a crest factor of up to 3.5:1; the CSW Series

AC source can drive difficult nonlinear loads with ease. Since many modern products use switching power supplies, they have a tendency to pull high repetitive peak currents. The CSW5550 can deliver up to 41.5 Amps of repetitive peak current (156 V range) per phase

Harmonic Waveform Generation

Using the latest DSP technology, the CSW 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 remote interface. Up to 200 waveforms can be stored in nonvolatile memory and given a user defined name for easy recall.

Arbitrary Waveform Generation

Harmonic waveform, Fund., 3rd, 5th, 7th, 9th,11th and 13th.

Two hundred user defined waveforms.

Harmonically distorted waveform.

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.

CSW Series - AC and DC Transient Generation

The CSW 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 CSW’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

Transient List Data Entry from the front panel.

Transient List Data Entry in GUI program.

204	www.ProgrammablePower.com

CSW Series	5550–33300 VA

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 spreadsheetlike data entry grid. A library of frequently used transient programs can be created on disk using this GUI program.

Harmonic Analysis

The CSW Series provides detailed amplitude and phase information on up to 50 harmonics of the fundamental voltage and current (up to

16 kHz). Harmonic content can be displayed in both tabular and graphical formats on the front panel LCD for immediate feedback to the

operator. Alternatively, the included GUI program can be used to display, print and save harmonic measurement data. Total harmonic distortion of both voltage and current is calculated from the harmonic data.

Absolute amplitude bar graph display of current harmonics with cursor positioned at the fundamental (CSW Display).

Voltage harmonic measurement table display in absolute values (CSW Display)

Waveform Acquisition

The measurement system is based on real-time digitization of the voltage and current waveforms using a 4K deep sample buffer. This time domain information provides detailed information on both voltage and current waveshapes. Waveform acquisitions can be triggered at a specific phase angle or from a transient program to allow precise positioning of the captured waveform with respect to the AC source output.

The front panel LCD displays captured waveforms with cursor readouts. The included GUI program also allows acquired waveform data to be displayed, printed, and saved to disk.

Acquired Current waveform (CSW Display).

Acquired Voltage waveform (CSW Display).

Measurement data for single phase (CSW Display).

Measurement data for all three phases (CSW Display).

Acquired three phase voltage waveforms display on PC.

Multi-Box Option

In many applications high power is required for a small portion of the testing while a majority of the tests are performed at reduced power levels. The controller architecture of the CSW provides the end-user with a wide array of configuration options that often eliminate the need to purchase different AC or DC power systems to meet a variety of applications. The Multi-Box option is available which allows multiple channel systems to be separated into individually controlled stand alone power sources. By simply connecting the interface cable between multiple sources the hardware automatically sets itself to the system configuration offering Plug and Play performance. There is no need to modify configuration settings from the front panel or hardware jumpers located internally to the source. The multi-box feature is ideal for end-users planning to increase power levels or separate a system into multiple smaller sources.

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