Bidirectional High-Capacity DC Power Supply (CV/CC)
For progressive
PXB Series
electric applications
Our goal was to create a bidirectional power supply
that could meet “X” various requirements.
Ultra-compact: 20 kW in a single 3U size frame.
It can handle not only high voltages of 1500V but also has both power and regenerative modes.
Guarantees optimal operation at any stage of research, development, and manufacturing.
Bidirectional High-Capacity DC Power Supplies PXB Series
Condenses a 20 kW large-capacity output into a 3U-size chassis. Not only handling high voltages of 1500V, but also capable of both power and regeneration in both directions in a single unit.
We provide a new power supply test environment for electrical and electronic equipment that is becoming increasingly high-powered. In addition, a variety of analog, digital, and communication interfaces are provided for optimal operation at any stage of research, development, and manufacturing! A new generation of bidirectional DC power supplies that support the progression of advanced technologies.
High power density
high-power & compact
Condenses a 20 kW large-capacity output into a 3U-size chassis.
Bidirectional output
A single unit handles both power and regeneration.
For test applications such as inverters with increasing capacity.
1500V
Maximum voltage: 1500V high voltage compatible.
Selectable power input
Choose from 3-phase 3-wire 200 V or 400 V models. No output limitation for either input voltage.
Features
Click on an item to open its description.
Output power range 2 to 3 times mains-powered operation
Mains-powered power supply with a wide range of operating ranges and combinations of voltage and current settings. If the voltage of the connected DUT is lower than the voltage setting of the PXB series, current flows from the PXB series to the DUT. If the voltage of the connected DUT is higher than the voltage setting of the PXB series, current flows from the DUT to the PXB series.
Achieves high-speed rise and fall times
Achieves a rise/fall time of 10 ms, which is several tens of times faster than conventional switching power supplies. Enabling high-speed power fluctuation testing that cannot be handled by ordinary DC power supplies.
Highly stable operation with high resistance to capacitive loads
Designed for highly stable operation, without oscillation or overshoot even when a load with a large capacitive component is connected.
Slew rate and response can be varied to match the characteristics of the connected load, suppressing oscillation and overshoot.
Optimized for different purposes and applications, with selectable response speeds
The required power supply response time varies depending on the test conditions and load specifications. The response speed of the PXB Series power supply can be changed to suit different applications.
Up to 25 units can be operated in parallel, achieving 500 kW *
Including master machine, up to 25 units (500 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.
Click on an item to open its description.
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.
Pulse function / Sign function
“Pulse” operation can be set, which repeatedly executes a binary setting, or “sine” operation, changing the current in a sinusoidal manner.
Regenerative function (on-premises) contributes to carbon neutrality.
When power is regenerated to the main unit from an inverter or battery, the load power is converted to reusable power and regenerated to the AC LINE. This can contribute to reducing the amount of heat exhaust and saving energy.
*Regenerative efficiency 90% or more (at rated load in Typ)
*The PXB series is designed for on-site regenerative power. Use in an environment where the power in the premises is greater than the regenerative power.
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.
Equipped with touch panel display
By pressing or swiping the display with a finger, the user can select an item on the screen or set a numerical value. The display is pressure-sensitive and can be operated even with gloves on.
Output power range 2 to 3 times mains-powered operation
Mains-powered power supply with a wide range of operating ranges and combinations of voltage and current settings. If the voltage of the connected DUT is lower than the voltage setting of the PXB series, current flows from the PXB series to the DUT. If the voltage of the connected DUT is higher than the voltage setting of the PXB series, current flows from the DUT to the PXB series.
Achieves high-speed rise and fall times
Achieves a rise/fall time of 10 ms, which is several tens of times faster than conventional switching power supplies. Enabling high-speed power fluctuation testing that cannot be handled by ordinary DC power supplies.
Highly stable operation with high resistance to capacitive loads
Designed for highly stable operation, without oscillation or overshoot even when a load with a large capacitive component is connected.
Slew rate and response can be varied to match the characteristics of the connected load, suppressing oscillation and overshoot.
Optimized for different purposes and applications, with selectable response speeds
The required power supply response time varies depending on the test conditions and load specifications. The response speed of the PXB Series power supply can be changed to suit different applications.
Up to 25 units can be operated in parallel, achieving 500 kW *
Including master machine, up to 25 units (500 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.
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.
Pulse function / Sign function
“Pulse” operation can be set, which repeatedly executes a binary setting, or “sine” operation, changing the current in a sinusoidal manner.
Regenerative function (on-premises) contributes to carbon neutrality.
When power is regenerated to the main unit from an inverter or battery, the load power is converted to reusable power and regenerated to the AC LINE. This can contribute to reducing the amount of heat exhaust and saving energy.
*Regenerative efficiency 90% or more (at rated load in Typ)
*The PXB series is designed for on-site regenerative power. Use in an environment where the power in the premises is greater than the regenerative power.
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.
Touch panel display
By pressing or swiping the display with a finger, the user can select an item on the screen or set a numerical value. The display is pressure-sensitive and can be operated even with gloves on.
SEAM mode
Equipped with SEAM mode allowing current to flow in both directions without changing voltage values. Suitable for charging and discharging storage batteries. Can suppress current overshoots and undershoots which may often occur during operation mode switching after charge/ discharge.
Variable internal resistance feature
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.
| Setting range | PXB20K-50 | 0 mΩ to 63 mΩ |
|---|---|---|
| PXB20K-250 | 0 mΩ to 1575 mΩ | |
| PXB20K-500 | 0 mΩ to 5250 mΩ | |
| PXB20K-1000 | 0 mΩ to 21000 mΩ | |
| PXB20K-1500 | 0 mΩ to 63000 mΩ |
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.
Reliable and solid performance even under high temperatures
Solid performance under operating temperatures of 0°C to 50°C. Exhibits full performance even in environments with severe ambient temperatures, such as when installed in equipment.
Caution: PXB20K-50 and PXB20K-250 operates in the temperature range of 0°C to +40°C.
Protection Functions for Safety Operation
- 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)
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.
External Control Function
The EXT CONT connector on the rear panel can be used to control the PXB 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.
| Terminal No. | Method | I/O | Name | Description |
|---|---|---|---|---|
| 1 | Digital | O | OUT Ch.1 | General-purpose output terminal |
| 2 | Digital | O | OUT Ch.2 | General-purpose output terminal |
| 3 | Digital | O | OUT Ch.3 | General-purpose output terminal |
| 4 | – | – | DO COM | Digital output common |
| 5 | – | – | DI COM | Digital input common |
| 6 | Digital | I | IN Ch.1 | General-purpose input terminal |
| 7 | Digital | I | IN Ch.2 | General-purpose input terminal |
| 8 | Digital | I | IN Ch.3 | General-purpose input terminal |
| 9 | – | O | +12V OUT | 12 V reference voltage available for digital input |
| 10 | – | – | – | Not used |
| 11 | – | – | A COM | Analog signal common |
| 12 | Analog | O | VMON | Voltage monitor |
| 13 | Analog | O | IMON | Current monitor |
| 14 | Digital | O | OUT Ch.4 | General-purpose output terminal |
| 15 | Digital | O | OUT Ch.5 | General-purpose output terminal |
| 16 | Digital | O | OUT Ch.6 | General-purpose output terminal |
| 17 | – | – | DO COM | Digital output common |
| 18 | – | – | DI COM | Digital input common |
| 19 | Digital | I | IN Ch.4 | General-purpose input terminal |
| 20 | Digital | I | IN Ch.5 | General-purpose input terminal |
| 21 | Digital | I | H ALARM IN | HIGH alarm EXT HIGH occurrence |
| 22 | – | – | 12V COM | 12 V reference voltage common |
| 23 | – | – | A COM | Analog signal common |
| 24 | Analog | I | EXT CV | Voltage control in the constant voltage mode |
| 25 | Analog | I | EXT CC/CP | Current control in the constant current / power modes |
| Method | Function |
|---|---|
| Analog input | Voltage and current value settings |
| Analog output | Monitoring of voltage and current values |
| General-purpose isolated digital input (Ch.1 to ch.5) *Photocoupler isolated input (Supports both current sink and source) |
|
| Digital input (Ch.6) | HIGH alarm generation (Fixed) |
| General-purpose isolated digital output (Ch.1 to ch.6) *Semiconductor relay output |
|
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 output terminals are available from Ch.1 to Ch.6. Any setting value from the items listed on the right can be selected.
Panel explanation
Applications
Inverter and motor evaluation test
Aging tests for bidirectional DC/DC converters
Specifications
Output rating
| Item | PXB20K-50 | PXB20K-250 | PXB20K-500 | PXB20K-1000 | PXB20K-1500 |
|---|---|---|---|---|---|
| Rated power | ±20000 W | ±20000 W | ±20000 W | ±20000 W | ±20000 W |
| Rated voltage (source) *1 | 0 V to 50 V | 0 V to 250 V | 0 V to 500 V | 0 V to 1000 V | 0 V to 1500 V |
| Operating voltage (sink) *2 | 3 V to 50 V | 15 V to 250 V | 10 V to 500 V | 20 V to 1000 V | 30 V to 1500 V |
| Rated current *1 | ±800 A | ±200 A | ±120 A | ±60 A | ±30 A |
*1. Limited by the maximum output power. *2. Operating voltage at which the rated sink current can be applied.
Output voltage
| Item | PXB20K-50 | PXB20K-250 | PXB20K-500 | PXB20K-1000 | PXB20K-1500 | ||
|---|---|---|---|---|---|---|---|
| Maximum settable voltage | 52.5 V | 262.5 V | 525 V | 1050 V | 1575 V | ||
| Setting accuracy | ±（0.2 % of setting + 0.1 % of rating） | ||||||
| Setting resolution | 0.005 V | 0.02 V | 0.05 V | 0.1 V | 0.1 V | ||
| Power fluctuation *1 | ±10 mV | ±50 mV | ±100 mV | ±200 mV | ±300 mV | ||
| Load variation *2 | ±40 mV | ±125 mV | ±250 mV | ±500 mV | ±750 mV | ||
| Remote sensing Maximum compensation voltage (reciprocating) | 10 % of rating | ||||||
| Internal resistance setting upper limit | 63 mΩ | 1575 mΩ | 5250 mΩ | 21000 mΩ | 63000 mΩ | ||
| Internal resistance setting resolution | 1 mΩ | 1 mΩ | 1 mΩ | 2 mΩ | 5 mΩ | ||
| Response switching | FAST、SLOW | ||||||
| Slew rate switching (TYP) | 12.5 V/ms or more *3 | 62.5 V/ms or more *3 | 125 V/ms or more *3 | 250 V/ms or more *3 | 375 V/ms or more *3 | ||
| 12.5 V/ms | 62.5 V/ms | 125 V/ms | 250 V/ms | 375 V/ms | |||
| 1.25 V/ms | 6.25 V/ms | 12.5 V/ms | 25.0 V/ms | 37.5 V/ms | |||
| 0.125 V/ms | 0.625 V/ms | 1.25 V/ms | 2.50 V/ms | 3.75 V/ms | |||
| 0.0125 V/ms | 0.0625 V/ms | 0.125 V/ms | 0.250 V/ms | 0.375 V/ms | |||
| Source only *4 | Transient response *5 | 8 ms or less | 8 ms or less | 8 ms or less | 10 ms 以下 | 10 ms 以下 | |
| Ripple noise *6 | p-p*7 | 250 mV | 375 mV | 1000 mV | 1500 mV | 2500 mV | |
| rms*8 | 30 mV | 125 mV | 250 mV | 500 mV | 750 mV | ||
| Rise time *9 | Full load *10 | 10 ms | |||||
| No load | 10 ms | ||||||
| Fall time *11 | Full load *10 | 10 ms | |||||
| No load | 10 ms | ||||||
*1. 180 Vac to 252 Vac for 200 Vac input, 342 Vac to 504 Vac for 400 Vac input. At the constant load. *2. The amount of change that occurs when the load is changed from no load to full load (rated output power/rated output voltage) with rated output voltage. The value is measured at the sensing point. *3. MAX will appear on the display. *4. In the case that the CV mode response setting is set to FAST. *5. The amount of time required for the output voltage to return to a value within “rated output voltage ±(0.1 % + 10 mV).” The load current fluctuation is 50 % to 100 % of the maximum current with the set output voltage. *6. At the rated output current. Values measured using JEITA RC-9131C probe and 100:1 probe. *7. Measurement frequency band: 10 Hz to 20 MHz *8. Measurement frequency band: 10 Hz to 1 MHz *9. 10 % to 90 % of the rated output voltage. *10.For a pure resistance. *11. 90 % to 10 % of the rated output voltage.
Output current
| Item | PXB20K-50 | PXB20K-250 | PXB20K-500 | PXB20K-1000 | PXB20K-1500 |
|---|---|---|---|---|---|
| Settable maximum source current *1 | +840 A | +210 A | +126 A | +63 A | +31.5 A |
| Settable maximum sink current *1 | -840 A | -210 A | -126 A | -63 A | -31.5 A |
| Seamless setting current range *1 | -840 A to +840 A | -210 A to +210 A | -126 A to +126 A | -63 A to +63 A | -31.5 A to +31.5 A |
| Setting accuracy | ±(0.75 % of rating) | ||||
| Setting resolution | 0.1 A | 0.02 A | 0.01 A | 0.005 A | 0.002 A |
| Line regulation | ±1600 mA | ±400 mA | ±240 mA | ±120 mA | ±60 mA |
| Load regulation | ±1600 mA | ±400 mA | ±240 mA | ±120 mA | ±60 mA |
| Rise time (Short-circuit) (TYP) *2 | 5 ms | ||||
| Fall time (Short-circuit) (TYP) *3 | 5 ms | ||||
| Charge/discharge switching time (TYP) | 10 ms | ||||
| Response switching | FAST, SLOW | ||||
| Slew rate switching (TYP) *4 | 200 A/ms or more *3 | 50 A/ms or more *3 | 30 A/ms or more *3 | 15 A/ms or more *3 | 7.5 A/ms or more *3 |
| 200 A/ms | 50 A/ms | 30 A/ms | 15 A/ms | 7.5 A/ms | |
| 20 A/ms | 5 A/ms | 3 A/ms | 1.5 A/ms | 0.75 A/ms | |
| 2 A/ms | 0.5 A/ms | 0.3 A/ms | 0.15 A/ms | 0.075 A/ms | |
| 0.2 A/ms | 0.05 A/ms | 0.03 A/ms | 0.015 A/ms | 0.0075 A/ms | |
*1. During parallel operation, this will be the value multiplied by the number of units in the configuration. *2. In the case that the CC mode response setting is set to FAST: Applied in response to changes from 10 % to 90 % of rated output current. *3. In the case that the CC mode response setting is set to FAST: Applied in response to changes from 90 % to 10 % of rated output current. *4. MAX will appear on the display.
Output power
| Item | Common to all models |
|---|---|
| Settable maximum source power | +21000 W |
| Settable maximum sink power | -21000 W |
| Seamless setting power range | -21000 W to +21000 W |
| Setting accuracy *1 | ±（0.5 % of power rating + 0.5 % of current rating × Vout） |
| Resolution | 2 W |
*1. Equal to or higher than 5 % of the rated power is guaranteed. Less than 5 % of the rated power is guaranteed as a TYP value.
200 V three-phase three-wire input
| Item | Common to all models |
|---|---|
| Nominal input rating | 200 Vac to 240 Vac, 50 Hz to 60 Hz |
| Input voltage range | 180 Vac to 252 Vac |
| Input frequency range | 47 Hz to 63 Hz |
| Input current (MAX)*1 | 80 A (180 V) |
| Input power (MAX)*1 | 24 kVA |
| Inrush current (TYP)*2 | 90 A |
| Power factor (TYP)*1 | 0.96 |
| Output hold time | 10 ms or more |
*1. At the rated output power for the rated output current. *2. Maximum peak current value when the POWER switch is turned on. (Excluding the surge current to the input filter capacitor.)
400 V three-phase three-wire input
| Item | Common to all models |
|---|---|
| Nominal input rating | 380 Vac to 480 Vac, 50 Hz to 60 Hz |
| Input voltage range | 342 Vac to 504 Vac |
| Input frequency range | 47 Hz to 63 Hz |
| Input current (MAX)*1 | 40 A (342 V) |
| Input power (MAX)*1 | 24 kVA |
| Inrush current (TYP)*2 | 70 A |
| Power factor (TYP)*1 | 0.96 |
| Output hold time | 10 ms or more |
*1. At the rated output power for the rated output current. *2. Maximum peak current value when the POWER switch is turned on. (Excluding the surge current to the input filter capacitor.)
Display
| Item | PXB20K-50 | PXB20K-250 | PXB20K-500 | PXB20K-1000 | PXB20K-1500 | |
|---|---|---|---|---|---|---|
| Voltmeter | Maximum display | ±60.000 V | ±300.00 V | ±600.00 V | ±1200.00 V | ±1800.00 V |
| Display accuracy | ±（0.1 % of reading + 0.2 % of rating） | |||||
| Ammeter | Maximum display | ±1120.000 A | ±336.000 A | ±168.000 A | ±84.000 A | ±42.000 A |
| Display accuracy | ±(0.75 % of rating) | |||||
| Wattmeter | Maximum display *1 | ±24.000 kW | ||||
| Display accuracy | Display the integrated value of voltmeter and ammeter | |||||
| Operation display | Output ON / OFF | The OUTPUT LED on the front panel lights in green | ||||
| Operation mode | Indicate the followings on the upper left part of the display | |||||
| CV: CV icon | ||||||
| CC: CC icon | ||||||
| CP: CP icon | ||||||
| Remote (LAN) | Indicate the followings on the upper left part of the display | |||||
| Not connected: Red LAN icon | ||||||
| Preparing for connection: Orange LAN icon | ||||||
| Connected: Green LAN icon | ||||||
| Alarm | Indicate the details of activated protection function on the display | |||||
| SCPI error | Indicate the error occurring at present on the display | |||||
| POWER off | Indicate residual charge warning and an instruction to turn off the display, then reboot | |||||
| key lock | Indicate the key lock status on the upper right part of the display | |||||
| Sensing | When sensing is enabled, indicate the sensing icon on the upper right part of the display | |||||
| During parallel operation | Displaying the slave state on the slave unit | |||||
| External control | When digital input/output is enabled, indicate the EXT icon on the upper right part of the display | |||||
*1 The unit will be W if it is less than 10 kW.
Protection specifications LOW alarm
| Item | PXB20K-50 | PXB20K-250 | PXB20K-500 | PXB20K-1000 | PXB20K-1500 | |
|---|---|---|---|---|---|---|
| OVP (Over Voltage Protection) | Protective operation | Output off, indicate “OVP” on the display. SLV OVP is displayed on the slave unit. | ||||
| Selectable range | 5 V to 55 V | 25 V to 275 V | 50 V to 550 V | 100 V to 1100 V | 150 V to 1650 V | |
| Setting accuracy | ±（0.1 % of setting + 0.2 % of rating） | |||||
| Resolution | 0.005 V | 0.02 V | 0.05 V | 0.1 V | 0.1 V | |
| OCP (Over Current Protection) | Protective operation | Output off, indicate “OCP” on the display. SLV OCP is displayed on the slave unit. | ||||
| Setting range (Source) *1 | 80 A to 880 A | 20 A to 220 A | 12 A to 132 A | 6 A to 66 A | 3 A to 33 A | |
| Setting range (Sink) *1 | -80 A to -880 A | -20 A to -220 A | -12 A to -132 A | -6 A to -66 A | -3 A to -33 A | |
| Setting accuracy | ±(0.75 % of rating) | |||||
| Resolution | 0.1 A | 0.02 A | 0.01 A | 0.005 A | 0.002 A | |
| OPP (Over Power Protection) | Protective operation | Output off, indicate “OPP” on the display. SLV OPP is displayed on the slave unit. | ||||
| Setting range (Source) *1 | 2 kW to 24 kW | |||||
| Setting range (Sink) *1 | -2 kW to -24 kW | |||||
| Setting accuracy | ±（1.0 % of power rating +1.0 % of current rating × Vout） | |||||
| Resolution | 2 W | |||||
| UVP (Under Voltage Protection) | Protective operation | Output off, indicate “UVP” on the display. SLV UVP is displayed on the slave unit. | ||||
| Selectable range | 0 V to 50 V | 0 V to 250 V | 0 V to 500 V | 0 V to 1000 V | 0 V to 1500 V | |
| Selectable | Enable/Disable | |||||
| Setting accuracy | ±（0.1 % of setting + 0.2 % of rating） | |||||
| Resolution | 0.005 V | 0.02 V | 0.05 V | 0.1 V | 0.1 V | |
| Watchdog Alarm (Communication error protection) | Protective operation | Output off, indicate “WDOG” on the display | ||||
| Selectable range | 1 s to 3600 s | |||||
| Selectable | Enable/Disable | |||||
| External Alarm LOW Level (external input alarm detection) | Protective operation | Output off, indicate “EXT LOW” on the display | ||||
*An alarm not requiring a reboot to be cleared. *1. During parallel operation, this will be the value multiplied by the number of units in the configuration.
Protection Specifications HIGH alarm
| Item | Common to all models | |
|---|---|---|
| Reverse Alarm (Reverse-connection detection protection) | Protective operation | Output off, indicate “REVE” on the display |
| OHP (Overheat protection) | Protective operation | Output off, indicate “OHP” on the display. SLV OHP is displayed on the slave unit. |
| Line OVP (Grid overvoltage protection) | Protective operation | Output off, indicate “LOVP” on the display. SLV LOVP is displayed on the slave unit. |
| Selectable range | Input voltage rating 200 Vac model: 200 V to 258 V Input voltage rating 400 Vac model: 380 V to 516 V | |
| Line UVP (Grid undervoltage protection) | Protective operation | Output off, indicate “LUVP” on the display. SLV LUVP is displayed on the slave unit. |
| Selectable range | Input voltage rating 200 Vac model: 175 V or less. Input voltage rating 400 Vac model: 333 V or less. | |
| Line Frequency Error (Grid abnormal frequency protection) | Protective operation | Output off, indicate “FREQ” on the display. SLV FREQ is displayed on the slave unit. |
| Detection value | 42 Hz/68 Hz | |
| External Alarm HIGH Level (External input alarm detection) | Protective operation | Output off, indicate “EXT HIGH” on the display |
| SENS Alarm (incorrect sensing connection detection) | Protective operation | Output off, indicate “SENS” on the display |
| Setting range | Enable/Disable | |
| Parallel Communication Error (Parallel operation communication error detected) | Protective operation | Output off, indicate “PARA COM” on the display |
| Para Other Slave Alarm (Parallel operation slave error occurred) | Protective operation | Output off, indicate “SLV OTHR” on the display |
| Incorrect Slave Alarm (Not applicable device connected) | Protective operation | Output off, indicate “SLV INC” on the display |
| Too many connections (Too many parallel connections) | Protective operation | Output off, indicate “TOO MANY” on the display |
| Hardware ERR *1 (Hardware error) | Protective operation | Output off, indicate “ERRH” on the display. SLV ERRH is displayed on the slave unit. |
| Software ERR *2 (Software error) | Protective operation | Output off, indicate “ERRS” on the display. SLV ERRS is displayed on the slave unit. |
*An alarm requiring a reboot to be cleared. *1. It occurs when an abnormality related to the hardware is detected and the internal unit comes to an emergency stop. *2. It occurs when an abnormality related to the software is detected and the internal unit comes to an emergency stop.
External analog I/O
| Item | Common to all models | ||
|---|---|---|---|
| Input | Input points | 2 points | |
| Voltage (CV) control | Setting range | 0 % to 100 % of the rated output voltage | |
| Input voltage range | 0 V to +5 V or 0 V to +10 V (Selectable) | ||
| Accuracy | ±(1 % of rating) | ||
| Current (CC) control Power (CP) control *1 | Setting range | −100 % to +100 % of the rated current and rated power | |
| Input voltage range | −5 V to +5 V or −10 V to +10 V (Selectable) | ||
| Accuracy | ±(1 % of rating) | ||
| Output | Output points | 2 points | |
| Voltage monitor (VMON) | Monitor range | 0 % to 100 % of the rated output voltage | |
| Output voltage range | 0 V to +5 V or 0 V to +10 V (Selectable) | ||
| Accuracy | 1 % of rating | ||
| Current monitor (IMON) | Monitor range | −100 % to +100 % of the rated output voltage | |
| Output voltage range | −5 V to +5 V or −10 V to +10 V (Selectable) | ||
| Accuracy | ±(1 % of rating) | ||
*1 Select either current control or power control.
External digital input
| Item | Common to all models | |
|---|---|---|
| Fixed input points | 1 point (Polarity switchable) | |
| Selected input points | 5 points (Polarity switchable) | |
| Input form | Photocoupler isolated input (Applicable to both current sink / source output) | |
| Fixed function | ALARM IN | HIGH alarm occurrence |
| Selecting function | OFF | Do not use terminals |
| OUTPUT ON | Turn on the output | |
| OUTPUT OFF | Turn off the output | |
| OUTPUT CTRL | Turn on of off the output | |
| L ALARM IN | LOW alarm occurrence | |
| ALARM CLR | LOW alarm clearance | |
| SEQ RUN | Sequence start/end | |
| SEQ PAUSE | Sequence pause/resume | |
| INTEG CTRL | Starting/stopping integration measurement | |
| INTEG RESET | Resetting integration measurement data | |
| ACQUIRE TRIG | Input the measurement trigger | |
| SEQ TRIG IN | Input the trigger for sequence | |
| MEM1 RECALL | Recall preset memory 1 | |
| MEM2 RECALL | Recall preset memory 2 | |
| External circuit power supply range | 12 V to 24 Vdc (±10 %) | |
External digital output
| Item | Common to all models | |
|---|---|---|
| Output points | 6 points (Polarity switchable) | |
| Output form | Semiconductor relay output | |
| Selecting function | OFF | Do not use terminals |
| OUTPUT ON | Outputting the signal while the output is ON | |
| POWER ON | Signal is output when power supply is on and output is possible | |
| H ALARM OUT | Output a signal when a HIGH alarm occurs | |
| L ALARM OUT | Output a signal when a LOW alarm occurs | |
| CC STATUS | Output a signal when operating in the CC mode | |
| CV STATUS | Output a signal when operating in the CV mode | |
| SEQ TRIG OUT | Output the trigger for sequence | |
| SEQ STATUS | Signal is output while the sequence is running | |
| EXT DIN BUSY | Output a signal when the digital input is in BUSY status | |
| MEM1 ACT TIME | Signal is output when the setting is completed for preset memory 1 | |
| MEM2 ACT TIME | Signal is output when the setting is completed for preset memory 2 | |
| RELAY DRIVE | Output a signal after approx. 100 ms in step with on/off of the DC OUTPUT terminal output. You can set this parameter to only Ch.6. | |
Communication interface
| Item | Common to all models | |
|---|---|---|
| Common specifications | Software protocol | IEEE std. 488.2-1992 |
| Command language | Complies with SCPI Specification 1999.0 | |
| RS232C | Hardware | D-SUB 9-pin connector Baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps Data length: 8 bits, Stop bits: 1 bit, Parity bit: None Flow control: No, CTS-RTS |
| Program message terminator | LF during reception, LF during transmission. | |
| USB (device) | Hardware | Standard type B socket. Complies with the USB 2.0 specifications; data rate: 480 Mbps (high speed) |
| Program message terminator | LF or EOM during reception, LF + EOM during transmission | |
| Device class | Complies with the USBTMC-USB488 device class specifications | |
| USB (host) | Hardware | Standard type A socket. Complies with the USB 2.0 specifications; data rate: 480 Mbps (high speed) |
| LAN | Hardware | IEEE 802.3 100BASE-TX or 10BASE-T Ethernet |
| Communication protocol | SCPI-RAW, SCPI-Telnet, HiSLIP, VXI-11 | |
| Program message terminator | SCPI-RAW: LF during reception, LF during transmission HiSLIP: LF or END during reception, LF + END during transmission. | |
| Compliant standards | LXI Version 1.5 Specifications 2016 | |
Others
| Item | Common to all models | ||
|---|---|---|---|
| Synchronization function (clock synchronization) | Overview | SYNC icon is displayed on the display when synchronization is established with the internal clock after connecting with other PXB series using the EXT SYNC connector. | |
| Sequence synchronization | Synchronization of the program start and step start. | ||
| Measurement synchronization | Synchronization of the measurement start | ||
| Output synchronization | Synchronization of output ON/OFF | ||
| Sequence function | Operation mode | CV, CC, and CP modes | |
| Maximum number of programs | 30 | ||
| Maximum number of steps | 10000 | ||
| Step execution time | 1 ms to 3600 000 s | ||
| Loop count | 1 to 100000, or infinite | ||
| Sine Function | Operation mode | CV/CC mode | |
| Frequency setting range | 1 Hz to 1000 Hz | ||
| Frequency resolution | 1 Hz to 10 Hz | 0.2 Hz | |
| 12 Hz to 100 Hz | 2 Hz | ||
| 120 Hz to 1000 Hz | 20 Hz | ||
| CV | Maximum setting | Setting range up to 105 % of rated voltage | |
| Maximum offset setting | Setting range up to 105 % of rated voltage | ||
| CC | Maximum setting | Setting range up to 210 % of rated current | |
| Maximum offset setting | Setting range up to ±105 % of rated current | ||
| Pulse function | Operation mode | CV/CC mode | |
| Frequency setting range | 1 Hz to 1000 Hz | ||
| Frequency resolution | 1 Hz to 10 Hz | 0.01 Hz | |
| 12 Hz to 100 Hz | 0.1 Hz | ||
| 120 Hz to 1000 Hz | 1 Hz | ||
| CV | High level rated current | Setting range up to 105 % of rated voltage | |
| Low level rated current | Setting range up to 105 % of rated voltage | ||
| CC | High level rated current | Setting range up to 105 % of rated current | |
| Low level rated current | Setting range up to 105 % of rated current | ||
| Duty cycle | 2.5 % to 97.5 % | ||
| Measurement trigger | Measurement start condition (trigger source) | Conditions for starting measurement can be selected (when inputting from display, when inputting commands by remote control, when inputting signals by external control, and when operating in synchronization) | |
| Number of measurements | 1 to 65536 | ||
| Measurement delay time | Setting range | 0 s to 100 s | |
| Resolution | 0.1 ms | ||
| Measurement interval | Setting range | 0.1 ms to 3600 s | |
| Resolution | 0.1 ms | ||
| Measurement time | Setting range | 0.1 ms to 1 s | |
| Resolution | 0.1 ms | ||
| I-V characteristic function | Operation mode | CV/CC mode | |
| Number of setup items | 3 to 100 items (interpolated between points with straight lines) | ||
| Preset memory | Number of memory entries | 20 | |
| Saved setting | Values in CV, CC, and CP modes, protection function values, and IR values | ||
| Setup Memory | Number of memory entries | 21 | |
| Saved setting | On/off of the output from the DC OUTPUT terminal, Output voltage value/Output current value/Output power value, Output current for seamless operation (DC SEAM), Output mode, Response, Slew Rate, Priority operation mode (Priority when output is ON), Impedance Setting When the Output is Off (Impedance when output is OFF), Value of the pulse function (Duty, Frequency, High, Low), Value of the sine function (Amplitude, Frequency, Offset), Number of I-V characteristics (Count), Internal resistance value (IR), Over voltage protection (OVP), Under voltage protection (UVP, UVP Enable), Over current protection (OCP(+), OCP(-), Delay), Over power protection (OPP(+), OPP(-)), Line overvoltage protection (Line OVP), Measurement trigger settings (Source, Count, Delay, Enable, Timer), Integration settings (Gate, Reset) | ||
| key lock | Level 1 | Output on/off and preset memory recall are available | |
| Level 2 | Output on/off are available | ||
| Level 3 | Output off is available | ||
| Number of parallel operated load modules | Up to 25 units | ||
General specifications
| Item | PXB20K-50 | PXB20K-250 | PXB20K-500 | PXB20K-1000 | PXB20K-1500 | |
|---|---|---|---|---|---|---|
| Weight | Approx. 41 kg (90.39 lbs) | Approx. 39 kg(85.98 lbs) | Approx. 38 kg (83.78 lbs) | Approx. 37 kg (81.57 lbs) | Approx. 37 kg (81.57 lbs) | |
| Dimensions | 430 (16.93)W×128 (5.04)H×720 (28.35)Dmm (inches) For details, refer to the dimensional drawing. | |||||
| Environmental conditions | Operating environment | Indoor use, overvoltage category II | ||||
| Operating temperature | 0 °C to +40 °C (32 °F to +104 °F) | 0 °C to +50 °C (32 °F to +122 °F) | ||||
| Operating humidity | 20 % rh to 85% rh (no condensation) | |||||
| Storage temperature | −25°C to +60°C (−13 °F to +140 °F) | |||||
| Storage humidity | 90 % rh or less (no condensation) | |||||
| Altitude | Up to 2000m | |||||
| Cooling method | Forced air cooling using fan | |||||
| Accessories | Input terminal cover, External control connector kit (1 set), Chassis connection wire, OUTPUT terminal cover, DC OUTPUT terminal screws (1 pair), EXT SYNC connector cover, SENSING connector cover, SENSING connector (2 pc.), Synchronized operation signal cable kit, Safety Information (1 copy), China RoHS sheet (1 sheet), Getting Started Guide (1 copy), Heavy object warning label (1 pc.) | |||||
| Withstanding voltage | Between input and GND | 2200 Vac for 1 minute | ||||
| Between input and output | 2200 Vac for 1 minute *1 | |||||
| Between output and GND | 500 Vdc for 1 minute | 1000 Vdc for 1 minute | 1800 Vdc for 1 minute | 1800 Vdc for 1 minute | 3000 Vdc for 1 minute | |
| Insulation resistance | Between input and GND | 30 MΩ, 500 Vdc | ||||
| Between input and output | 30 MΩ, 500 Vdc | 30 MΩ, 600 Vdc | 30 MΩ, 1000 Vdc | |||
| Isolation voltage | ±250 V | ±600 V | ±1000 V | ±1000 V | +2000 V/−1000 V | |
| Electromagnetic compatibility *2 *3 | Complies with the requirements of the following directive and standard. EMC Directive 2014/30/EU EN 61326-1(Class A*4) | |||||
| Safety*2 | Complies with the requirements of the following directive and standard. Low Voltage Directive 2014/35/EU*3 EN 61010-1 (Class I*5, Overvoltage category II, Pollution Degree 2*6) UL 61010-1*7 CAN/CSA -C 22.2 NO.61010-1*7 | |||||
*1 Basic insulation *2 Does not apply to specially ordered or modified products. *3 Only for models with CE marking / UKCA marking on their body. *4 This is a Class A instrument. This product is intended for use in an industrial environment. This product may cause interference if used in residential areas. Such use must be avoided unless the user takes special measures to reduce electromagnetic emissions to prevent interference to the reception of radio and television broadcasts. *5 This is a Class I instrument. Be sure to ground this product’s protective conductor terminal. The safety of this product is guaranteed only when the product is properly grounded. *6 Pollution is addition of foreign matter (solid, liquid or gaseous) that may produce a reduction of dielectric strength or surface resistivity. Pollution Degree 2 assumes that only non-conductive pollution will occur except for an occasional temporary conductivity caused by condensation. *7 Only for models with cTUVus marking on their body.
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Unless specified otherwise, the specifications are for the following settings and conditions.
- The product is warmed up for at least 30 minutes.
The used terminology is as follows:
- TYP: These are typical values that are representative of situations where the product operates in an environment with an ambient temperature of 23°C (73.4°F).
- setting: Indicates a set value.
- reading: Indicates a readout value.
- rating: Indicates a rated value.
- Open: Indicates equivalence to the state in which the DC OUTPUT terminals are opened.
- +, −: + sign indicates source, − sign indicates sink.
- Vout: Indicates output voltage.
Line-up
Options
For detailed optional products, please check the individual product page.
Parallel-operation cable
Rack Mount Bracket
Load cable
* For PXB20K-50 * For PXB20K-250, PXB20K-500 ※ For PXB20K-1000, PXB20K-1500
Three-phase input power cord
GPIB Converter
Downloads
The electric drive changes the power from the engine to the motor, which converts energy in both directions, so the electrical components (inverter, battery, etc.) that drive the motor are subject to bi-directional current flow.
In the evaluation of these electrical components, the market demanded a power supply that could handle bidirectional current, and the power band varied from 10 kW to several 100 kW, depending on the type of EV, so there was a wide range of power needs. At that time, Kikusui did not have a bi-directional DC power supply or a power supply that could handle several hundred kW, and we decided to develop a bi-directional DC power supply that could sufficiently meet market demands, considering that market needs would increase further if not only cars but all forms of transportation became electrically powered.
