Smart Solutions. Proven Results.

Magna-Power XR Series
Programmable DC Power Supply

Magna-Power XR Series <br> Programmable DC Power Supply
Magna-Power XR Series
Programmable DC Power Supply

Magna-Power XR Series
The XR Series was designed from the ground up for high reliability and industry-leading 2U (3.5” height) rack-mount programmable power levels, at 2 kW, 4 kW, 6 kW, 8 kW, and 10 kW. The XR Series features the largest voltage range in Magna-Power's product offering, from 5 Vdc to 10,000 Vdc, all utilizing the company's signature current-fed power processing to deliver robust power conversion. In addition, high accuracy programming and monitoring levels allow confidence in power supply measurements, eliminating the need for external power meters.

Request Quote Request
A Quote

Most Quotes sent in 3-4 hours
Contact Representative QUESTIONS?
ASK OUR EXPERTS

Contact your local W5 Representative
Product Details

Fully Programmable DC Power


The XR Series features programmable voltage, current, and protection settings along with high accuracy measurements. The XR Series functions and features are accessible and configurable from a variety of control methods, including:

  • Front panel interface with stepless knobs
  • 37-pin isolated analog-digital user I/O
  • RS232 Computer interface with software and drivers

Various additional programming interfaces are available, such as LXI TCP/IP Ethernet (+LXI), IEEE-488 GPIB (+GPIB), Edgeport USB Accessory (+USB), RS485 Accessory (+RS485).

Designed for Safety


XR Series power supplies have extensive diagnostic functions, including:

  • AC Phase Loss
  • Excessive Thermal Conditions
  • Over Voltage Trip (Programmable)
  • Over Current Trip (Programmable)
  • Cleared Fuse
  • Excessive Program Line Voltage
  • Interlock Fault

When in standby or diagnostic fault, the AC mains are mechanically disconnected by an embedded AC contactor, providing confidence that the unit is only processing power when desired.

Finally, with a dedicated +5V interlock input pin and included +5V reference on all models, external emergency stop systems can be easily integrated using an external contact.

Extensive Programming Support


All XR Series MagnaDC power supplies come with a dedicated National Instruments LabVIEW™ driver, Interchangeable Virtual Instrument (IVI) driver, and support for a wide range of Standard Commands for Programmable Instrumentation (SCPI). These programming interfaces support full control, measurement, and monitoring of the MagnaLOAD. All of the MagnaLOAD's available communication interfaces are supported by these drivers and command sets, including: RS232, LXI TCP/IP Ethernet, IEEE-488 GPIB, USB or RS485.

Showcased in the following basic code examples, SCPI commands provide the simplest form of communication by using plain ASCII text and parameters sent over a basic socket connection. Over 50 commands are provided, with detailed documentation in the XR Series User Manual.

Finally, Magna-Power's RIS Panel software is provided allowing for a virtual control panel controlling the power supply via any of the available communication interfaces.

import visa rm = visa.ResourceManager() magna_power = rm.open_resource(USB::0x0403::0x6015::1201-2358::INSTR) magna_power.write('*IDN?') magna_power.read() magna_power.write('VOLT 1000') magna_power.write('CURR 20') magna_power.write('INP:START')
magna_power = visa('ni','USB::0x0403::0x6015::1201-2358::INSTR'); fopen(magna_power) fprintf(magna-power,'*IDN?') idn = fscanf(magna_power) fprintf(magna-power,'VOLT 1000') fprintf(magna-power,'CURR 20') fprintf(magna-power,'INP:START')
string resourceString = "USB::0x0403::0x6015::1201-2358::INSTR"; mbSession = (MessageBasedSession)ResourceManager.GetLocalManager().Open(resourceString);string idn; mbSession.Timeout = 3000; idn = mbSession.Query("*IDN?"); mbSession.Write("VOLT 1000"); mbSession.Write("CURR 20"); mbSession.Write("INP:START");

 

Current-Fed Topology

Current-Fed Topology: Robust Power Conversion


All MagnaDC programmable DC power supplies utilize high-frequency IGBT-based power processing in current-fed topology. This topology adds an additional stage over the conventional voltage-fed topology for enhanced control and system protection, ensuring that even under a fault condition, the power supply will self-protect. Due to the self-protecting characteristics of this topology, the possibility of fast rising current spikes and magnetic core saturation is eliminated.

In addition to its robust topology, key performance characteristics of MagnaDC programmable DC power supplies include:

  • High-accuracy voltage and current programming accuracy
  • Class-leading line and load regulation performance
  • High 3F AC input power factor with in-rush limiting circuitry
  • Computer and user I/O isolated from the power supply output

Front Panel - Standard


XR Series Standard Front Panel

Front Panel - C Version


XR Series Blank Front Panel
A
POWER: Indicates power output
STANDBY: Indicates control power only
B
Function Keys
MENU: Selects function
ITEM: Selects item within function
V/I DIS: Displays voltage-current settings
TRIP DIS: Displays OVT and OCT setting
CLEAR: Clears settings or resets fault
ENTER: Select item
C
Meters display output voltage, output current, voltage set point, current set point, over voltage trip and over current trip
D
Power switch energizes control circuits without engaging main power
E
Engages and disengages main power via integrated mechanical contactor
F
Stepless rotary knob to set voltage-current
G
Diagnostic Alarms
LOC: Interlock
PGL: External input voltage beyond limits
PHL: Under-voltage AC input
THL: Over-temperature condition
OVT: Over-voltage protection has tripped
OCT: Over-current protection has tripped
H
REM SEN: Remote sense enabled
INT CTL: Front panel start/stop/clear enabled
EXT CTL: External start/stop/clear enabled
ROTARY: Front panel rotary knob input
EXT PGM: External analog voltage-current control
REMOTE: Computer control
USA Flag

Designed and Manufactured in the USA, Available Worldwide


For complete control of quality, MagnaDC programmable DC power supplies are designed and manufactured at Magna-Power's vertically integrated USA manufacturing facility in Flemington, New Jersey. Heat-sinks and chassis are machined from aluminum. All sheet metal is fabricated and powder coated in-house. Magnetics are wound-to-order from validated designs based on a model's voltage and current. An automated surface-mount production line places components on printed circuit boards for control, driver, auxiliary power, and display circuits. And finally after assembly, products undergo comprehensive test and calibration, followed by an extended burn-in period

There are 136 different models in the XR Series spanning power levels: 2 kW, 4 kW, 6 kW, 8 kW, 10 kW.

To determine the appropriate model:

  1. Select the desired Output Voltage Maximum (Vdc) from the left-most column.
  2. Select the desired Current Maximum (Adc) from the same row that contains your desired Voltage Maximum.
  3. Construct your model number according to the model ordering guide.
XR Series Ordering Guide
 2 kW4 kW6 kW8 kW10 kW  
Voltage Maximum (Vdc)Current Maximum (Adc)Ripple (mVrms)Efficiency
5375600N/AN/AN/A5080%
10200375600N/AN/A5084%
161252503755006005084%
201002003003755004587%
25801602403204004588%
32621241862503104088%
40501001502002504088%
5040801201602005090%
6033661001331666091%
802550751001256091%
100204060801006091%
125163248648010091%
160122436506012091%
200102030405012592%
25081624324013092%
3006.613.219.826.433.316092%
3755.310.615.921.326.517092%
40051015202518092%
5004812162022093%
6003.36.69.913.316.525093%
8002.557.51012.530093%
100024681035093%
12501.63.24.86.4837593%
15001.32.64.05.36.640093%
20001234545093%
40000.511.52N/A650093%
60000.330.6611.33N/A750093%
80000.250.50.751N/A850093%
100000.20.40.60.8N/A950093%
AC Input Voltage (Vac)Input Current Per Phase (Aac)  
208/240 Vac, 1F17N/AN/AN/AN/A  
208/240 Vac, 3F815222935  
380/415 Vac, 3F59121619  
440/480 Vac, 3F48111417  
Input Specifications
1F AC Input Voltage
1F, 2-wire + ground
Available on 2 kW models only
208 Vac (operating range 187 - 229 Vac)
240 Vac (operating range 216 - 264 Vac)
3F AC Input Voltage
3F, 3-wire + ground
Available on all models
208 Vac (operating range 187 to 229 Vac)
240 Vac (operating range 216 to 264 Vac)
380 Vac (operating range 342 to 440 Vac)
415 Vac (operating range 373 to 456 Vac)
440 Vac (operating range 396 to 484 Vac)
480 Vac (operating range 432 to 528 Vac)
Input Frequency
45 Hz to 440 Hz
Power Factor
> 0.92 at maximum power
AC Input Isolation
±2500 Vac, maximum input voltage to ground
Output Specifications
Voltage Ripple
Model specific. Refer to chart of available models.
Line Regulation 
Voltage mode: ± 0.004% of full scale
Current mode: ± 0.02% of full scale
Load Regulation 
Voltage mode: ± 0.01% of full scale
Current mode: ± 0.04% of full scale
Load Transient Response 
2 ms to recover within ±1% of regulated output with a 50% to 100% or 100% to 50% step load change
Stability
± 0.10% for 8 hrs. after 30 min. warm-up
Efficiency
86% to 88%
Model specific. Refer to chart of available models.
Maximum Slew Rate
Standard Models
100 ms for an output voltage change from 0 to 63%
100 ms for an output current change from 0 to 63%
Maximum Slew Rate
Models with High Slew Rate (+HS) Option
4 ms for an output voltage change from 0 to 63%
8 ms for an output current change from 0 to 63%
Bandwidth
Standard Models
3 Hz with remote analog voltage programming
2 Hz with remote analog current programming
Bandwidth
Models with High Slew Rate (+HS) Option
60 Hz with remote analog voltage programming
45 Hz with remote analog current programming
DC Output Isolation
Models Rated =1000 Vdc
±1000 Vdc, maximum output voltage to ground
DC Output Isolation
Models Rated >1000 Vdc and =2000 Vdc
±(2000 Vdc + Vo/2), maximum output voltage to ground
DC Output Isolation
Models >2000 Vdc
No output isolation, specify positive or negative output polarity at time of order
Control Specifications
Voltage Programming Accuracy 
± 0.075% of max rated voltage
Over Voltage Trip Programming Accuracy
± 0.075% of max rated voltage
Current Programming Accuracy 
± 0.075% of max rated current
Over Current Trip Programming Accuracy
± 0.075% of max rated current
Voltage Readback Accuracy 
± 0.2% of max rated voltage
Current Readback Accuracy 
± 0.2% of max rated current
Load Regulation 
Voltage mode: ± 0.01% of full scale
Current mode: ± 0.04% of full scale
Computer Command Protocol
Standard Commands for Programmable Instruments (SCPI)
External User I/O Port
Analog and Digital Programming
37-pin D-sub DC-37, female
Referenced to Earth ground; isolated from power supply output
See User Manual for pin layout
Analog Programming and Monitoring Levels
0-10 Vdc
Analog Output Impedances
Voltage output monitoring: 100 O
Current output monitoring: 100 O
+10V reference: 1 O
Digital Programming and Monitoring Limits
Input: 0 to 5 Vdc, 10 kO input impedance
Output: 0 to 5 Vdc, 5 mA drive capacity
Remote Sense Limits (Wired)
3% maximum voltage drop from output to load
Physical Specifications
Size and Weight
2 kW Models
2U
3.50" H x 19" W x 24" D (8.89 x 48.26 x 60.96 cm)
45 lbs (20.41 kg)
Size and Weight
4 kW Models
2U
3.50" H x 19" W x 24" D (8.89 x 48.26 x 60.96 cm)
47 lbs (21.32 kg)
Size and Weight
6 kW Models
2U
3.50" H x 19" W x 24" D (8.89 x 48.26 x 60.96 cm)
48 lbs (21.77 kg)
Size and Weight
8 kW Models
2U
3.50" H x 19" W x 24" D (8.89 x 48.26 x 60.96 cm)
48 lbs (21.77 kg)
Size and Weight
10 kW Models
2U
3.50" H x 19" W x 24" D (8.89 x 48.26 x 60.96 cm)
48 lbs (21.77 kg)
Environmental Specifications
Ambient Operating Temperature
0°C to 50°C
Storage Temperature
-25°C to +85°C
Humidity
Relative humidity up to 95% non-condensing
Temperature Coefficient
0.04%/°C of maximum output voltage
0.06%/°C of maximum output current
Air Flow
Side air inlet, rear exhaust
Regulatory Compliance
EMC
Complies with European EMC Directive for test and measurement products
Safety
Complies with EN61010-1
CE Mark
Yes
RoHS Compliant
Yes
Front Panel
XR Series Front Panel Diagram
Rear Panel
XR Series Rear Panel Diagram
Side Panel
XR Series Side Panel Diagram
Communications Interface
LXI TCP/IP Ethernet Option (+LXI)
XR Series Communications Interface Diagram
Communications Interface
IEEE-488 GPIB Option (+GPIB)
XR Series Communications Interface Diagram
Standard Output Bus
Models =1000 Vdc
XR Series Standard Output Bus Diagram
High Voltage Output Bus
Models >1000 Vdc and =2000 Vdc
XR Series High Voltage Output Bus Diagram
Very High Voltage Output Bus
Models >2000 Vdc
XR Series Very High Voltage Output Bus Diagram
Very High Voltage Output Cable
Included, Models Above 2000 Vdc
XR Series Very High Voltage Output Cable Diagram

High Slew Rate Output

 
+HS
The high slew rate output option is a hardware and control modification that replaces the standard output stage with one of low capacitance film and/or high RMS current rated aluminum electrolytic capacitors. This options provides higher bandwidth with faster output rise and fall times.

IEEE-488 GPIB

 
+GPIB
This option provides an integrated IEEE-488 GPIB communications port, allowing the product to be fully controlled and monitored using supported commands, as well as adding some additional interface specific commands.

LXI TCP/IP Ethernet

 
+LXI
This option provides an integrated TCP/IP Ethernet communications port, allowing the product to be fully controlled and monitored using supported commands, as well as adding some additional interface specific commands.

Photovoltaic Power Profile Emulation

 
+PPPE
This software interface for Magna-Power programmable DC power supplies utilizes EN50530 modeling to generate and transfer non-linear solar array profiles as a function of temperature and sunlight for the power supply to emulate.

Ruggedized

 
+RUG
This option provides and internal ruggedization, which has been independently tested to comply with select MIL-STD-810G shock and vibration specifications.

Accessories Available

NameItemDescriptionDocs
USB Edgeport Converter25302Industrial Plug and Play USB to RS232 ConverterN/A
RS485 Converter24716Industrial RS232 to Addressable RS485 ConverterN/A
UID47: Universal Interface Device22026Master-slave interface device for load sharing. Includes interface device and (2) D-Sub 37 cables.PDF
CAB1: Cabinet and Integration 11788312U Cabinet (32” H x 24” W x 31.5” D) with casters, fans, and product integrationN/A
CAB2: Cabinet and Integration 21788324U Cabinet (51.5” H x 24” W x 31.5” D) with casters, fans, and product integrationN/A
CAB3: Cabinet and Integration 31788330U Cabinet (67” H x 24” W x 31.5” D) with casters, fans, and product integrationN/A
CAB4: Cabinet and Integration 41788336U Cabinet (75” H x 24” W x 31.5” D) with casters, fans, and product integrationN/A
CAB3x2: Cabinet and Integration 3x21788360U Double Cabinet (67” H x 48” W x 31.5” D) with casters, fans, and product integrationN/A
CAB4x2: Cabinet and Integration 4x21788372U Double Cabinet (75” H x 48” W x 31.5” D) with casters, fans, and product integrationN/A

White Papers

An Overview of Current-Fed Power Processing

A technical paper on Magna-Power Electronics signature current-fed power processing topology with a comparison to alternative approaches to high-power switch-mode power supply design.

Control Loop Modulation Applied to Programmable DC Power Supplies

Modulation allows a set point adjustment of voltage or current by another input. Modulation signals can be derived from an external device, such as a thermistor, or from sampling output current or voltage.

Getting the Best Performance from AC to DC Power Supplies in Abusive Environments

Five frequently seen power supply integration problems that may affect the product's lifespan and measures for correcting them, including: power supply grounding, line voltage, switching remote sense leads, over current trip fault, and operating environment.

Peak-to-Peak Output Voltage Measurements of Switching Power Supplies

The peak-to-peak output voltage measurement requires a setup that is difficult for customers to replicate. This article explores the methods and physical apparatuses used by Magna-Power to measure peak-to-peak output voltage ripple.

Current-Fed Power Processing—Ride Through Robustness

Magna-Power’s design philosophy focuses on developing power circuits capable of riding through potentially damaging conditions. This article explores this design philosophy in more detail, along with the company's MagnaDC power supply's signature current-fed power processing.
Corporate Headquarters
W5 Engineering | an R Source Company

Pacific NW/Main Office: (971) 244-8200
Greater Seattle: (425) 321-2757
Northern California: (510) 606-9090
Southern California: (818) 416-3487
Western Canada: (778) 650-5236
USA/Canada Toll Free: (866) 400-1300
© 2021, w5 Engineering - All Rights Reserved