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 eXtention for Instrumentation

Features

Equipped with standard LAN interface and VMCB function to support network-based remote control and monitoring

Network, Thin, Wide Range

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.

Basic configuration with LAN interface and VMCB (example)

ConfigurationIP addressDomain numberChannel number
Master192.168.1.110
Slave192.168.1.211
192.168.1.312

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).

通信監視機能を追加

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.

LAN Interface

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).

USB Interface

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).

RS232C Interface

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”.

Operating range conceptual diagram

Model typeRated voltage rangeSample of the rated output voltage750W1500W
L (LF)10V to 30V10V75A to 25A75A150A to 50A150A
12.5V60A120A
15V50A100A
20V37.5A75A
30V25A50A
ML (MLF)26.8V to 80V26.8V28A to 9.37A28A56A to 18.75A56A
30V25A50A
35V21.4A42.8A
40V18.75A37.5A
45V16.66A33.33A
60V12.5A25A
80V9.375A18.75A
MH (MHF)75V to 230V75V10A to 3.26A10A20A to 6.52A20A
80V9.375A18.75A
100V7.5A15A
150V5A10A
200V3.75A7.5A
230V3.26A6.52A
H (HF)214.2V to 650V214.2V3.5A to 1.153A3.5A7A to 2.307A7A
300V2.5A5A
400V1.875A3.75A
500V1.5A3A
600V1.25A2.5A
650V1.153A2.307A
 

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
nonEKIKUSUI,PWX750ML,UC00003,VER01.00 BLD0134
5700Agilent Technologies,N5748A, UC00003,A.01.00
GenLAMBDA,GENH80-28-USB,S/N:UC00003, REV:1U:1.00-AP0134
dcsSORENSEN.DCS300-4,UC00003, 1.00,1.00
PAGKIKUSUI,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.

Series Operation

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.

Master-Slave Parallel Operation

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

J1

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 nameDescription
1STATUS COMStatus signal common for pins 2, 3, and 14 to 16.
2CV STATUSOn when the PWX series is in CV mode (open-collector output from a photocoupler). *1
3CC STATUSOn when the PWX series is in CC mode (open-collector output from a photocoupler). *1
4N.C.Not connected.
5ALM CLRAlarm clear terminal.
Alarms are cleared when a low TTL level signal is applied to this terminal.
6SHUT DOWNOutput shutdown control terminal. The output is turned off when a low TTL level signal is applied to this terminal.
7PRL IN-Negative input terminal for master-slave parallel operation.
8PRL IN+Positive input terminal for master-slave parallel operation.
9PRL COMP INCorrection signal input terminal for master-slave parallel operation.
10A COMExternal 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.
11PRL OUT+Positive electrode output terminal for master-slave parallel operation.
12PRL COMP OUTCorrection signal output terminal for master-slave parallel operation.
13I SUMCurrent signal terminal for master-slave parallel operation.
14ALM STATUSOn 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
15PWR ON STATUSOutputs 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
16OUT ON STATUSOn when output is on (output through an open-collector photocoupler). *1
17N.C.Not connected.
18OUT ON/OFF CONTOutput on/off terminal.
On (or off) when a low (or high) TTL level signal is applied.
19A COMExternal 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.
20REF OUTExternal resistance control terminal; 5.25V (CF07: Lo) or 10.5V (CF07: Hi).
21I PGMTerminal 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).
22V PGMTerminal 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).
23A COMExternal 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.
24I MONOutput 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).
25V MONOutput 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 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.

Control using an external resistance

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.

Turning output on and off 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.

Output shutdown control 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.

Clearing alarms using an external contact. (Excluding OVP2, OHP2, SD)

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.

Variable Internal Resistance Feature

 PWX750LFPWX750MLFPWX750MHFPWX750HFPWX1500LPWX1500MLPWX1500MHPWX1500H
Rint (min) [Ω]0.0001*10.0010.010.10.00010.0010.010.1
Rint (max) [Ω]0.4000*12.85723.00185.70.2000*11.42911.5092.9
Resolution [Ω]0.0001*10.0010.010.10.0001*10.0010.010.1

*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.

 PWX750LFPWX750MLFPWX750MHFPWX750HFPWX1500LPWX1500MLPWX1500MHPWX1500H
Maximum internal resistance that can be set
Rint (max) [Ω]
0.4002.85723.00185.70.2001.42911.5092.9
 

Specifications

 OutputInput CurrentRated PowerDimensionsWeight
ModelVA(AC 100/200 V)AWTypekg/lb
PWX750ML0 to 800 to 2810.5/5.25750Half rack size5/11.02
PWX750LF*0 to 300 to 75Full rack size8/17.64
PWX750MLF*0 to 800 to 28
PWX750MHF*0 to 2300 to 107.5/16.53
PWX750HF*0 to 6500 to 3.5
PWX1500L*0 to 300 to 15021/10.515009.5/20.94
PWX1500ML*0 to 800 to 56
PWX1500MH*0 to 2300 to 209/19.84
PWX1500H*0 to 6500 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

Front Panel

Rear Panel

Rear Panel

Product line-up

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