PPS LMX Series High Performance Progammable Linear AC Power Sources 500VA to 30kVA

High Performance Programmable AC power

The LMX Series encompasses an all new collection of High Performance 1 phase and 3 phase Linear AC Power Sources. All standard models operate from 15 to 5,000 Hz, range in power from 500VA to 30kVA, and provide nominal output voltage ranges up to 600Vrms L-N.

The LMX Series builds on the popularity of the original AMX Series linear AC power sources that have been the benchmark for programmable AC Power output fidelity and performance and are backward compatible with the AMX.

Key Features Provide Application Versatility

• USB, LAN (LXI), IEEE-488.2 and RS-232C with SCPI compatibility
• Compatible with PPSC Studio graphical user interface
• LabVIEW for Windows®/LabWindows® drivers
• Waveform Creation by Harmonic Synthesis
• Waveform Capture (Voltage and Current)
• Harmonic Analysis (Voltage and Current)
• Metering of RMS and Peak Values
• Continuous Self Calibration (CSC)
• Line Sync
• 6:1 Peak Current Capability
• Low Impedance for EN61000-3-2, 3 Testing
• Programmable Output Impedance
• Up to 0-300 VAC Direct Coupled Out
• 1 Phase / 3 Phase Switch Selectable
• 15-5000 Hz Full Power Bandwidth
• Power Levels from 500 VA to 6 kVA standard; 30kVA optional
• Externally Referenced Meter Calibration
• CE Safety & EMC and NTRL Safety Mark

Design Provides Total Control of AC Power

• All LMX Series power source models are equipped with our new digital Real-Time programmable Controller.
• Single phase power source models may be controlled to operate on either a 0-135 VAC range or a 0-270 VAC range. Three phase models are additionally switchable to 3ø/1ø output power form.
• Total control of the output power form and the selection of either the direct output or the optional transformer output is available from the front panel or the bus.
• All operating functions may be controlled from either the front panel or from a remote USB, LAN (LXI compliant), RS-232 or IEEE 488.2/ SCPI BUS. LabVIEW for Windows® and LabWindows® Instrument Drivers are available.
• The LMX controller supports a browser interface that allows control of the power source over LAN or USB using a web browser on PC, laptop or smartphone.

Special LMX Series Operating Features

Continuous Self Calibration

Provides for exceptional accuracy of the AC output Voltage. When enabled, accuracy improves to ±0.03% referenced to the power source internal voltmeter.

Programmable Dynamic Output Impedance

Programmable Output Impedance provides the operator with dynamic control over the output impedance of the AC Power Source. Using the output current term as conditioned feedback signal to the output voltage circuits, positive or negative impedance may be programmed. The purpose of this control is to simulate the effects of or compensate for high peak current, distribution, or transformer losses of up to ±10% of the output voltage.

This feature creates positive, negative, or zero output impedance (Zo).

Compensates for line distribution or transformer losses.

Simulates a soft power line for product testing. Compensation range is ±10% of the output voltage.

Waveform Library

Up to 200 different waveforms can be stored in the waveform library for execution as part of a steady state program or for substitution in any output phase as part of a transient test program. Memory location #1 is a non-editable high resolution sine wave. All other locations are editable and can be substituted in any output phase. An unlimited number of waveforms may be stored on the computer.

Waveform Edit

Provides the ability to modify a stored waveform by specifying the waveform amplitude desired at each specific phase angle.

Waveform Analysis (optional on UPC12/32)

Provides both a graphic and numeric display of the harmonic structure of a voltage or current waveform. Data presented includes the magnitude of each harmonic in %, the total harmonic distortion, and the odd and even harmonic distortion in %.

Waveform Synthesis

Provides the ability to quickly create virtually any AC Test Waveform that may be required by building it out of harmonics. The process is as simple as keying in the harmonic multiple, the amplitude, and the phase angle for each desired harmonic up through the 51st.

Time Based Transients

Provides the ability to create and execute on command, transients that occur linearly over a specified time segment to modify output voltage or frequency.

Cycle Based Transients

Provides the ability to create and execute, on command, transients that substitute a selected waveform in the output for 1 to 100 cycles..

AC Test Power

  The LMX Series Power Source is equipped with multiple Digital Signal Processors (DSPs) to create a fully integrated test system. It supplies a variety of power conditions to the device under test and meters/analyzes all output performance parameters.  

Frequency/Voltage Conversion

The LMX Series is an excellent source of stable AC voltage over the frequency range of 15 to 5,000 Hz. The output frequency is quartz-crystal stabilized. Output voltages up to 600 VAC are provided.  

Phase Conversion

With the ability to provide single and three-phase outputs, the LMX Series is the perfect choice to provide 1 Phase to 3 Phase or 3 Phase to 1 Phase conversion.  

Dual Range Output Magnetics Options

LMX Series Power Sources can be equipped with output transformers to provide an alternate output voltage range. Selection of direct or transformer coupled range is performed by the controller via front panel or bus command. The standard frequency range for transformer coupled outputs is 45 to 5,000 Hz. Standard output ratios are 1.5:1, 2.0:1, and 2.5:1. Transformer outputs are supplied internally or externally via a Magnetics Module as listed in the above table. Consult the factory for additional information regarding special output ranges not listed above.  

Protective Transit Cases for Mobile Applications

Pacific Power Source offers rugged transit cases to protect your AC Source from adverse environmental conditions for mobile and/or military applications.   Specific benefits:

• Environmental Protection (shock, vibration, moisture, heat),
• Unrestricted Equipment Operation,
• Quick Cover Removal & Installation,
• Integrated wheels and Handles,
• Stainless Steel Latches.
• Available for following LMX models:
  • 3U: 105LMX, 108LMX, 112LMX, 305LMX, 308LMX, 312LMX
  • 5U: 320LMX