High-Capacity Wide-Range DC Power Supply

For progressive

PXT Series

PXT top

PXT

electric applications

Excellent size and versatility.
This high-capacity DC power supply is an optimal solution.

Maximum 20 kW output in a 3U size
It can be used as a standalone device or integrated into testing equipment.
The excellent heat dissipation design guarantees an ambient operating temperature of 50°C.

High-Capacity Wide-Range DC Power SupplyPXT Series

The PXT Series of high-performance, high-capacity, wide-range DC power supplies offers a maximum rated output of 20 kW in a compact 3U size. In addition to variable internal resistance, bleeder ON/OFF, and output ON/OFF delay functions, the PXT series has various communication interfaces (LAN, USB, and RS232C as standard).

It can be used as a standalone device or integrated into testing equipment. Furthermore, the excellent heat dissipation design guarantees an ambient operating temperature of 50°C, making the unit suitable for harsh, high-temperature testing environments. The PXT Series is also highly scalable, and its capacity can be increased to 200 kW in parallel operation (up to 10 units).

High power density

high-power & compact
Condenses a 20 kW large-capacity output into a 3U-size chassis.

1500V

Maximum voltage: 1500V high voltage compatible.

Ambient temperature: 50°C

Full-load continuous operation is possible even at ambient temperatures as high as 50 °C (122 °F).

external analog control standard

LAN, USB, RS232C, external analog control (isolated type) standard.

Features

Space and Cost-Saving

Comparison of PAT500-80TM (40 kW) and PXT20K-500 x 2 units (40 kW)

3 downs
PAT500-80TM(40kW) PAT500-80TM(40kW)for mobile PXT20K-500 × 2 PXT20K-500 × 2 for mobile

Output Power Range 2.25 to 3 times mains-powered operation

Output Power Range 2.25 to 3 times mains-powered operationThe PXT series has an operating range of 2.25 to 3x power ratio, which allows for a wide range of voltage and current setting combinations. For example, the PXT20K-500 can seamlessly operate from 500 V-40 A to 166.6 V-120 A within the rated output power range of 20 kW.

Low Ripple Noise

Low Ripple NoiseThis switching-type power supply has low ripple noise.
*PXT20K-500: Specified value 700 mVp-p (100 mVrms)

Excellent Versatility Thanks to Wide-Range Output

Excellent Versatility Thanks to Wide-Range OutputCovers multiple single-range models!

Excellent Transient Response Characteristics

Excellent Transient Response CharacteristicsA transient response of 6 ms or less* ensures high-quality output waveforms even when the current changes abruptly.
*The time required for the output voltage to return within ± (0.1 % + 10 mV) of the rated output voltage when the CV mode response is set to FAST. The output current fluctuation value is 50 % to 100 % of the maximum current at the set output voltage.

Optimized for Different Purposes and Applications, with Selectable Response Speeds

Optimized for Different Purposes and Applications, with Selectable Response SpeedsRequired response speed of power supply equipment varies depending on test conditions and load specifications. The PXT series can change the response speed of the power supply as desired to suit the application.

Equipped with Touch Panel Display

Equipped with Touch Panel DisplayBy pressing or swiping a finger on the display, on-screen items can be selected, or numerical values set. The display is pressure-sensitive and can be operated even with gloves.

Bleeder ON/OFF Function

Turning the bleeder function on quickly discharges the electrical charge accumulated in the load when the OUTPUT was turned off and allows the output voltage to be lowered.
A battery connected to the output terminal will be discharged when the bleeder function is on, even if the OUTPUT is turned off. In such cases, unnecessary discharge can be prevented by turning the bleeder function off.

ItemDescription
EnableTurns the bleeder function on. Sink current flows when the output is off.
DisableDisables the bleeder function. Prevents unintended discharge when output is
turned off. However, a low sink current will still flow due to the resistance inside
the PXT series.
The reference values of the internal resistance are as follows:
PXT20K-500: approx. 55 kΩ
PXT20K-1500: approx. 560 kΩ

Priority Operation Mode

Mode of operation can be set, as constant voltage (CV), constant current (CC), or constant power (CP), when output is turned on. Overshoot can be prevented by setting CC mode priority when batteries, power supplies, etc. are connected.

Fast No-Load Fall Time

The PXT series achieves a no-load fall time of 750 ms. This contributes to shorter takt time.


External Control Function

The EXT CONT connector on the rear panel can be used to control the PXT series with external devices. The general-purpose digital input and output terminals can be assigned any function, facilitating system construction in combination with other measurement devices.
Digital I/O standard for both NPN and PNP type PLCs. Analog I/O is isolated from output terminals as standard, allowing safe analog control from PLC.

External Control Function
Terminal No.MethodI/ONameDescription
1DigitalOOUT Ch.1General-purpose output terminal
2DigitalOOUT Ch.2General-purpose output terminal
3DigitalOOUT Ch.3General-purpose output terminal
4--DO COMDigital output common
5--DI COMDigital input common
6DigitalIIN Ch.1General-purpose input terminal
7DigitalIIN Ch.2General-purpose input terminal
8DigitalIIN Ch.3General-purpose input terminal
9-O+12 V OUT12 V reference voltage available for digital input
10---Not used
11--A COMAnalog signal common
12AnalogOVMONVoltage monitor
13AnalogOIMONCurrent monitor
14DigitalOOUT Ch.4General-purpose output terminal
15DigitalOOUT Ch.5General-purpose output terminal
16DigitalOOUT Ch.6General-purpose output terminal
17--DO COMDigital output common
18--DI COMDigital input common
19DigitalIIN Ch.4General-purpose input terminal
20DigitalIIN Ch.5General-purpose input terminal
21DigitalIH ALARM INHIGH alarm EXT HIGH occurrence
22--12 V COM12 V reference voltage common
23--A COMAnalog signal common
24AnalogIEXT CVVoltage control in the constant voltage mode
25AnalogIEXT CC/CPCurrent control in the constant current / power modes
MethodFunction
Analog inputSetting of voltage and current values
Analog outputMonitoring of voltage and current values
General-purpose isolated digital input
(Ch.1 to ch.5)
*Photocoupler isolated input
(Supports both current sink and source)
  • Output ON/OFF from DC OUTPUT terminal
  • LOW alarm generation / deactivation
  • Start / Stop totalizer measurement
  • Reset totalized value
  • Measurement trigger input
  • Preset memory recall
Digital input (Ch.6)HIGH alarm generation (Fixed)
General-purpose isolated digital output
(Ch.1 to ch.6)
*Semiconductor relay output
  • Monitor output status of DC OUTPUT terminal
  • Power-on monitor
  • Alarm monitoring
  • Operating mode monitoring
  • Preset memory monitoring

General-purpose isolated digital input terminals are available from Ch.1 to Ch.5. Any setting value from the items listed on the right can be selected.

General-purpose isolated digital input terminals are available from Ch.1 to Ch.5.

General-purpose isolated digital output terminals are available from Ch.1 to Ch.6. Any setting value from the items listed on the right can be selected.

General-purpose isolated digital output terminals are available from Ch.1 to Ch.6.

Sequence Function

Preset operations can be run continuously. Total of 30 programs, and up to 10,000 steps can be created for all programs. Programs stored in the unit’s memory, and data can be exported to a USB memory stick from the front panel.

Sequence Function:

Variable Internal Resistance Function

Function can change the output voltage value in constant voltage operation, according to the output current value based on the set resistance value. Simple simulation of Internal resistance of rechargeable batteries and wire harnesses etc.

Variable Internal Resistance Function Variable Internal Resistance Function - table

I-V Characteristic Function

By registering multiple arbitrary points on the I-V characteristics, arbitrary I-V characteristics can be set for each CC and CV operation mode. Arbitrary points can be registered from 3 to 100, making it possible to simulate the I-V characteristics of rechargeable batteries and other devices.

I-V Characteristic Function

Up to 10 Units can be Operated in Parallel, Achieving 200 kW*

Including master machine, up to 10 units (200 kW) can be operated in parallel. Connection is with one-control parallel operation, and the panel of the master machine can control and display the entire system. With the automatic recognition function, the need for complicated settings is eliminated, allowing the construction of high-capacity systems.

*Parallel operation is possible between models with different input rated voltages.
★ Please contact us if you wish to operate more than 10 units in parallel.

Rack mounted image

Selectable Power Input

Full output at rated power regardless of input voltage. Choose from 3-phase 3-wire 200 V or 400 V models. No output limitation for either input voltage.

Selectable Power Input

Reliable and Solid Performance Even Under High Temperatures

Solid performance under operating temperatures of 0°C to 50°C (32 °F to 122 °F). Exhibits full performance even in environments with severe ambient temperatures, such as when installed in equipment.

Reliable performance

Safety Protection Function

  • OVP (Over voltage protection)
  • UVP (Under voltage protection)
  • WDOG (Communication error protection)
  • OPP (Over power protection)
  • OCP (Over current protection)
  • EXT LOW (External input alarm detection)
  • Wide Range DC Power Supply
  • PXT SERIES
  • Wide Range DC Power Supply
  • PXT SERIES

Equipped with Standard LAN Interface and VMCB Function

The PXT series is equipped with LAN, USB, and RS232C interfaces as standard features. By using the feature of virtual multi-channel bus (VMCB), it allows you to control remotely and monitoring for 1-to-N as well as N-to-M for large-scale networks. This feature can also be used to save communication ports or to synchronize the control timing of multiple PXT series units (up to 8 units). The PXB series manufactured by our company can also be mixed and matched for multi-channel connection.

When connecting the VMCB master unit via LAN

When connecting the VMCB master unit via LAN

Communication monitoring function

This function monitors the communication status. For example, the alarm will be activated and the output will be turned off when the LAN cable is disconnected and the communication is not being confirmed within the specified time of setting. This function protects the operation from the uncontrolled condition, and it improves the system reliability.

Schematic LAN network configuration with the PXT series

Schematic LAN network configuration with the PXT series

Security for LAN connections
Access to the built-in web server can be restricted with a password. Also, when using VXI-11, HiSLIP, and SCPI-RAW for control, host restrictions can be set with the IP address. It is possible to prevent access from any terminal other than the ones registered as a host (up to 4 hosts can be registered).

Rear Panel

Rear Panel

Specifications

 OutputRipple noisePower fluctuationLoad variationInput currentWeight
ModelCVCCRated powerCVCVCCCVCCAC 208 V (3-phase 3-wire) /
480 V (3-phase 3-wire)
Approx.
PXT20K-500 3P3W 200V (20kW / 500V / 120A / Input voltage 200V)0 to 500 V120 A20 kW100 mVrms±100 mV±240 mA±250 mV±240 mA80 A38 kg (83.78 lbs)
PXT20K-500 3P3W 400V (20kW / 500V / 120A / Input voltage 400V)0 to 500 V120 A20 kW100 mVrms±100 mV±240 mA±250 mV±240 mA40 A38 kg (83.78 lbs)
PXT20K-1500 3P3W 200V (20kW / 1500V / 30A / Input voltage 200V)0 to 1500 V30 A20 kW300 mVrms±300 mV±60 mA±750 mV±60 mA80 A37 kg (81.57 lbs)
PXT20K-1500 3P3W 400V (20kW / 1500V / 30A / Input voltage 400V)0 to 1500 V30 A20 kW300 mVrms±300 mV±60 mA±750 mV±60 mA40 A37 kg (81.57 lbs)

Line-up

Options

For detailed optional products, please check the individual product page.

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