1U Multi Range Programmable DC Power SupplyPWX Series
Ideal for N-to-M network-based remote control and monitoring, A Next-Generation Rack-Mounted Power Supply
The PWX series is a CVCC programmable regulated DC power supply designed to optimize for a rack-mounted power supply. To increase its mounting efficiency, it has a 19-inch rack width with a thin shape and intakes and outtakes for cooling on only the front and back surfaces so that it can be mounted flush top and bottom. The series is equipped standard with USB, RS232C, and LAN interfaces, which are essential for system up grades. T he series also has a vir tual multi-channel bus (VMCB) function that allows it to be used efficiently for remote control and monitoring with 1-to-N and as well as with N-to-M in large-scale networks. In particular, the LAN interface is LXI compliant*, enabling you to control and monitor the power supply easily from a browser on a PC, smartphone, or tablet. You can also manage the power supply in a different building. Two output power specif ications are available: 750W and 1500W, and a wide range of voltage and current settings can be combined within its output power rating (3 times). For example, the output power of 1500W model, the PWX1500ML is capable to operate seamlessly from the range of “80V-18.75A” to “26.8V-56A”. The input voltage has a universal 85V to 265V input voltage range, and the unit also has an internal power fac tor correction (PFC) circuit to control the harmonic current. It also includes an analog external control/monitoring output, master-slave parallel operation function, various protective functions, and memory function.*This function for the PWX750ML applies to the firmware version 2.0 and later. LXI: LAN eXtensions for Instrumentation
Features
Equipped with standard LAN interface and VMCB function to support network-based remote control and monitoring
The PWX series is equipped with LAN, USB, and RS232C interfaces as standard features. By using the feature of virtual multi-channel bus (VMCB)*1span>, it allows you to control remotely and monitoring for 1-to-N as well as N-to-M for large-scale networks. In particular, the LAN interface is LXI compliant, enabling you to easily control and monitor the power supply through a browser on a PC, smart-phone, or tablet by accessing the web server built into the PWX series. Additionally, the optional application software, Wavy for PWX (SD013-PWX), sequence creation and control sof tware, allows you to change settings for specific channels (in individual) on VMCB-connected PWX series power supplies, and lets you perform batch control using global commands*2. You can also turn the output ON and OFF on multiple units and adjust the output voltage and current.
*1: This function for the PWX750ML applies to the firmware version 2.0 and later.
*2: This is only enabled for “Direct control” on Wavy for PWX. Global commands that can be also used under control with VXI-11, HiSLIP, and SCPI-RAW.
Basic configuration with LAN interface and VMCB (example)
As shown in the figure below, it is possible to connect a PC and the PWX series with a hub to create a virtual group using a LAN connec-tion. A maximum of 255 virtual groups can be set, and the maximum number of units can be configured up to 31 units per group. A group can have a mixture of models.
| Configuration | IP address | Domain number | Channel number |
| Master | 192.168.1.1 | 1 | 0 |
| Slave | 192.168.1.2 | 1 | 1 |
| 192.168.1.3 | 1 | 2 | |
A DHCP server can also establish settings automatically | |||
Additional feature is adopted!
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.
*Applies to the firmware Ver.2.2X or above
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).
LAN Interface
The LAN inter face can control the number of devices with high speed, and it’s theoretical controllable maximum number is to be calculated by approximately 4.2 billion. (The maximum transmission speed varies by the number of connected devices) In accordance with its applied standard, it is possible to combine the device that is to control or to be controlled, it is also the feature that can be used with various applications. Also, in computers installed with Apple Bonjour, it is possible to access with a host name instead of the IP address.
The PWX series can automatically identify the type of LAN cable whether straight or cross is connected and it connects using the appropriate method.
USB Interface
The USB interface has a feature of high versatility, and the ease of a setup. The automatic recognition by the plug and play releases a user from the complex setting operation under the digital control, and it can be suitable interface when control by 1:1. In accordance with the standard, the maximum number of the connected devices can be configured up to 127 units. Moreover, the USB interface of the PWX series complies to USB2.0, and it has realized transmission speed of a maximum of 12Mbps (es) (Full Speed).
RS232C Interface
The PWX series is also equipped with a RS232C connector. It can be used for communication with PCs and sequencers. Since the PWX series has a RJ45 connector, it is required for a separate D-sub 9P-RJ45 adapter cable (RD-8P/9P).
The operating range can be varied the ratio of 3 times within its output power rating with a full range of functions that make it suitable as a test power supply
3 times output power rating
A wide range of voltage and current settings can be combined within its output power rating (3 times). For example, the output power of 1500W model, the PWX1500ML is capable to operate seamlessly from the range of “80V-18.75A” to “26.8V-56A”.
| Model type | Rated voltage range | Sample of the rated output voltage | 750W | 1500W | ||
| L (LF) | 10V to 30V | 10V | 75A to 25A | 75A | 150A to 50A | 150A |
| 12.5V | 60A | 120A | ||||
| 15V | 50A | 100A | ||||
| 20V | 37.5A | 75A | ||||
| 30V | 25A | 50A | ||||
| ML (MLF) | 26.8V to 80V | 26.8V | 28A to 9.37A | 28A | 56A to 18.75A | 56A |
| 30V | 25A | 50A | ||||
| 35V | 21.4A | 42.8A | ||||
| 40V | 18.75A | 37.5A | ||||
| 45V | 16.66A | 33.33A | ||||
| 60V | 12.5A | 25A | ||||
| 80V | 9.375A | 18.75A | ||||
| MH (MHF) | 75V to 230V | 75V | 10A to 3.26A | 10A | 20A to 6.52A | 20A |
| 80V | 9.375A | 18.75A | ||||
| 100V | 7.5A | 15A | ||||
| 150V | 5A | 10A | ||||
| 200V | 3.75A | 7.5A | ||||
| 230V | 3.26A | 6.52A | ||||
| H (HF) | 214.2V to 650V | 214.2V | 3.5A to 1.153A | 3.5A | 7A to 2.307A | 7A |
| 300V | 2.5A | 5A | ||||
| 400V | 1.875A | 3.75A | ||||
| 500V | 1.5A | 3A | ||||
| 600V | 1.25A | 2.5A | ||||
| 650V | 1.153A | 2.307A | ||||
Emulation setting
Command language setting function
Emulate devices from companies around the world
The command language and the emulation which are used at the time of remote control can be set. When the emulation setting is selected, the digital remote control is possible as a substitute of other manufacturer’s device. Furthermore, the RS232C interface corresponds to other products by setting the command language into a LGCy language.
| Emulation setting | *IDN? The contents of reply |
| nonE | KIKUSUI,PWX750ML,UC00003,VER01.00 BLD0134 |
| 5700 | Agilent Technologies,N5748A, UC00003,A.01.00 |
| Gen | LAMBDA,GENH80-28-USB,S/N:UC00003, REV:1U:1.00-AP0134 |
| dcs | SORENSEN.DCS300-4,UC00003, 1.00,1.00 |
| PAG | KIKUSUI,PAGH80-28-USB,S/N:UC00003, REV:1U:1.00-AP0134 |
Bleeder on/off function
The capacitor is connected to the output terminal of the PWX series, and the bleeder circuit is equipped to discharge the electric charge when the OUTPUT is OFF. For example, when the battery is connected to the output terminal, even if it is in the state of OUTPUT OFF, when the bleeder circuit is set to ON, the bleeder circuit will discharge electric charges of the battery. In this case, excessive electric discharge can be prevented by setting the bleeder circuit to OFF state. It is possible to omit the diode for reverse current prevention required for the charge of such a battery.
A startup state setup at the time of output ON
You can set for the priorit y operation mode (CC (constant current) priority/CV (constant voltage) ) when the output is turned ON. It prevents the overshooting when the output is turned ON.
Preset memory function
The preset memory function allows you to save up to three combination of each preset value of voltage, current, OVP, OCP, and UVL. The saved preset value can be called from the preset memory on the front panel.
Variable Internal Resistance Feature (Factory option, except PWX750ML)
The variable internal resistance feature enables you to easily simulate the internal resistance of rechargeable batteries, solar batteries, fuel cells, and the like. By setting the internal resistance value in constant voltage (CV) mode, you can decrease the output voltage according to the output current. You can use a CONFIG setting to set the internal resistance.
Extending the capacity (Series Operation)
You can connect up to two units in series. The total of the output voltages of the two units is applied to the load. The voltage setting accuracy is the same as the accuracy of an individual unit. *You cannot perform master-slave configuration in series operation. *Excluding the PWX750HF and the PWX1500H.
Master-Slave Parallel Operation
In master-slave parallel operation, one unit is the master unit, and all other units connected in parallel are slave units. The master and slave units must all be the same model. You can control the whole system by operating the master. You can use master-slave parallel operation to increase the output current (maximum output current: the rated output current of one unit × the number of units connected in parallel). You can connect up to four units, including the master, in parallel. The difference in the output voltage and output current between the master unit and the slave units is within approximately 5% of the rating.
Isolated Analog Interface (factory option)
The optional isolated analog interface can be installed upon request at the time of an order. You can use a signal that is isolated from the reference potential of the PWX to control the output voltage/current, turning output on/off, and output shut down control using an external contact, and output voltage/current monitoring. This option can be selected from the voltage control type (0V to 5V or 0V to 10V) or the current control type (4mA to 20mA).
Analog Interface
The PWX series is equipped with external voltage/resistance control, which are inter faces necessar y for analog ex ternal control and monitoring applications for test power supply devices. The input ex ternal signal and the output status signal can be conduc ted through the J1 connector on the rear panel.
| Pin no. | Signal name | Description |
| 1 | STATUS COM | Status signal common for pins 2, 3, and 14 to 16. |
| 2 | CV STATUS | On when the PWX series is in CV mode (open-collector output from a photocoupler). *1 |
| 3 | CC STATUS | On when the PWX series is in CC mode (open-collector output from a photocoupler). *1 |
| 4 | N.C. | Not connected. |
| 5 | ALM CLR | Alarm clear terminal. Alarms are cleared when a low TTL level signal is applied to this terminal. |
| 6 | SHUT DOWN | Output shutdown control terminal. The output is turned off when a low TTL level signal is applied to this terminal. |
| 7 | PRL IN- | Negative input terminal for master-slave parallel operation. |
| 8 | PRL IN+ | Positive input terminal for master-slave parallel operation. |
| 9 | PRL COMP IN | Correction signal input terminal for master-slave parallel operation. |
| 10 | A COM | External signal common for pins 5 to 9, 11 to 13, 20 to 22, 24, and 25. During remote sensing, this is the negative electrode (-S) of sensing input. When remote sensing is not being performed, this is connected to the negative output. |
| 11 | PRL OUT+ | Positive electrode output terminal for master-slave parallel operation. |
| 12 | PRL COMP OUT | Correction signal output terminal for master-slave parallel operation. |
| 13 | I SUM | Current signal terminal for master-slave parallel operation. |
| 14 | ALM STATUS | On when a protection function (OVP, OCP, OHP, FAN, SEN, or AC_FAIL) has been activated or when an output shutdown signal is being applied (output through an open-collector photocoupler). *1 |
| 15 | PWR ON STATUS | Outputs a low level signal when power is turned on (CF11: 0) or when power is turned off (CF11: 1; output through an open-collector photocoupler). *1 |
| 16 | OUT ON STATUS | On when output is on (output through an open-collector photocoupler). *1 |
| 17 | N.C. | Not connected. |
| 18 | OUT ON/OFF CONT | Output on/off terminal. On (or off) when a low (or high) TTL level signal is applied. |
| 19 | A COM | External signal common for pins 5 to 9, 11 to 13, 20 to 22, 24, and 25. During remote sensing, this is the negative electrode (-S) of sensing input. When remote sensing is not being performed, this is connected to the negative output. |
| 20 | REF OUT | External resistance control terminal; 5.25V (CF07: Lo) or 10.5V (CF07: Hi). |
| 21 | I PGM | Terminal used to control the output current with an external voltage or external resistance. 0V to 5V; 0% to 100% of the rated output current (CF07: Lo). 0V to 10V; 0% to 100% of the rated output current (CF07: Hi). |
| 22 | V PGM | Terminal used to control the output voltage with an external voltage or external resistance. 0V to 5V; 0% to 100% of the rated output voltage (CF07: Lo). 0V to 10V; 0% to 100% of the rated output voltage (CF07: Hi). |
| 23 | A COM | External signal common for pins 5 to 9, 11 to 13, 20 to 22, 24, and 25. During remote sensing, this is the negative electrode (-S) of sensing input. When remote sensing is not being performed, this is connected to the negative output. |
| 24 | I MON | Output current monitor. 0% to 100% of the rated output current is generated as a voltage between 0 V and 5V (CF08: Lo) or a voltage between 0V and 10V (CF08: Hi). |
| 25 | V MON | Output voltage monitor. 0% to 100% of the rated output voltage is generated as a voltage between 0V and 5V (CF08: Lo) or a voltage between 0V and 10V (CF08: Hi). |
*1 Open collector output: Maximum voltage of 30V and maximum current of 8mA. The status common is floating (isolation voltage of 60V or less), it is isolated from the control circuit. | ||
Controlling the Output Voltage & Output Current.
Control using an external voltage.
It is possible to control the output voltage/output current of the PWX series by using an external voltage.
Control using an external resistance.
It is possible to control the output voltage/output current of the PWX series by using an external variable resistor.
Turning output on and off using an external contact.
It is possible to turn the output ON/OFF of the PWX series by using an external contact.
Output shutdown control using an external contact.
It is possible to turn the output OFF of the PWX series by using an external contact.
Clearing alarms using an external contact. (Excluding OVP2, OHP2, SD)
It is possible to clear the alarm of the PWX series by using an external contact.
Monitoring operation modes
External monitoring of the output voltage and output current
Variable Internal Resistance Feature
(Factory option)
Variable Internal Resistance Feature
The variable internal resistance feature enables you to easily simulate the internal resistance of rechargeable batteries, solar batteries, fuel cells, and the like. By setting the internal resistance value in constant voltage (CV) mode, you can decrease the output voltage according to the output current. You can use a CONFIG setting to set the internal resistance.
| PWX750LF | PWX750MLF | PWX750MHF | PWX750HF | PWX1500L | PWX1500ML | PWX1500MH | PWX1500H | |
| Rint (min) [Ω] | 0.0001*1 | 0.001 | 0.01 | 0.1 | 0.0001 | 0.001 | 0.01 | 0.1 |
| Rint (max) [Ω] | 0.4000*1 | 2.857 | 23.00 | 185.7 | 0.2000*1 | 1.429 | 11.50 | 92.9 |
| Resolution [Ω] | 0.0001*1 | 0.001 | 0.01 | 0.1 | 0.0001*1 | 0.001 | 0.01 | 0.1 |
*1 When the value is set from the front panel, the least significant digit is not shown on the panel display. The value varies at a higher resolution than what is hown, and the least significant digit is rounded and shown in the next higher digit. | ||||||||
The maximum internal resistance that can be set from the front panel during parallel operation is the value obtained by dividing Rint (max) during standalone operation by the number of units in parallel operation. The resolution is the value obtained by dividing the resolution during standalone operation by the number of units in parallel operation.
| PWX750LF | PWX750MLF | PWX750MHF | PWX750HF | PWX1500L | PWX1500ML | PWX1500MH | PWX1500H | |
| Maximum internal resistance that can be set Rint (max) [Ω] | 0.400 | 2.857 | 23.00 | 185.7 | 0.200 | 1.429 | 11.50 | 92.9 |
Specifications
| Output | Input Current | Rated Power | Dimensions | Weight | ||
| Model | V | A | (AC 100/200 V)A | W | Type | kg/lb |
| PWX750ML | 0 to 80 | 0 to 28 | 10.5/5.25 | 750 | Half rack size | 5/11.02 |
| PWX750LF* | 0 to 30 | 0 to 75 | Full rack size | 8/17.64 | ||
| PWX750MLF* | 0 to 80 | 0 to 28 | ||||
| PWX750MHF* | 0 to 230 | 0 to 10 | 7.5/16.53 | |||
| PWX750HF* | 0 to 650 | 0 to 3.5 | ||||
| PWX1500L* | 0 to 30 | 0 to 150 | 21/10.5 | 1500 | 9.5/20.94 | |
| PWX1500ML* | 0 to 80 | 0 to 56 | ||||
| PWX1500MH* | 0 to 230 | 0 to 20 | 9/19.84 | |||
| PWX1500H* | 0 to 650 | 0 to 7 | ||||
*The CE marked products. For details, please contact our distributor or agent. | ||||||
Please refer to the product page for detailed specifications.
Front Panel
Rear Panel
Product line-up
Options
Cable
1500 W model AC power cord
Parallel operation cable for 2 units in parallel
Parallel operation cable for 3 units in parallel
Parallel operation cable for 4 units in parallel
RS232C control conversion cable
