Atec Power-PQ-III User Manual

3.3 kW

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AGNA-POWER

ELECTRONICS

PQ SERIES III

DC Power Supply

6.6 kW

10 kW

www.magna-power.com

RUGGED CURRENT FED TECHNOLOGY

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HIGH EFFICIENCY OPERATION

INNOVATIVE

Magna-Power Electronics’ PQ SERIES III combines the best of dc power

processing with multiprocessor embedded control. A combination of high and

medium frequency power processing technologies improves response, shrinks

package size, and reduces cost. PQ SERIES III power supplies are current fed and

are more tolerant to abusive loads than conventional switching power supplies.

SCALABLE POWER

PQ SERIES III power supplies oer both master/slave parallel and series

operation. This enables two or more power supplies to be placed in parallel for

increased output current or in series for increased output voltage. With master/

slave operation, power supplies operate at near equal voltage and current.

PQ SERIES III power supplies can operate as a voltage source or current

source depending on the control settings and load conditions. If the power

supply is operating as a voltage source and the load increases to a point beyond

the current command setting, the power supply automatically crosses over to

current mode control and operates as a current source at that setting.

UNPARALELLED CONTROL

PQ SERIES III power supplies can be congured through the front panel for

dierent applications. The power supply can be programmed to have its control

functions accessible from the front panel, rear connector, or through RS232 com-

munications. Sensing can be established at the output terminal of the power sup-

ply or through a rear terminal block for sensing at the load. A smart remote sense

detector checks whether or not sense leads are present eliminating the potential

of uncontrolled operation. An external interlock can be set to enable operation

only when an external connection is made. Even calibration has been simplied

with front panel access to calibration digital potentiometers.

PQ SERIES III power supplies incorporate an optically isolated feedback system.

The result is that all user interface circuitry is referenced to earth ground -- not

the negative terminal of the power supply. This enables users to connect external

circuitry without concern of ground loops or voltage breakdown.

FEATURES:

• 54 Models: 5 to 1000 Vdc, 3 to 900 Adc

• Series and parallel master/slave operation

• High dielectric withstand: 2500 Vac

• 50 Hz to 400 Hz input frequency

• All user interface circuitry referenced to

earth ground

• OVT and OCT shutdown standard

• Automatic V/I crossover

• RS232 interface with SCPI commands

• Optional IEEE-488 or Ethernet

programming

• Front panel potentiometers for stepless

rotary control

• Front panel calibration

• User friendly controls and indicators

• Remote Interface Software with self-

teaching features

• Drivers: Certied LabWindows/CVI and

LabVIEW for GPIB, Serial, and TCP/IP

communications

• Load dependent air or option water

cooling

• High power factor

• CE Mark

LOAD DEPENDENT AIR OR OPTIONAL WATER COOLING

PQ SERIES III power supplies are designed to operate at rated load 24 hours per day. Standard air cooled units are equipped

with variable speed, load dependent blowers to maintain comfortable margins for removing heat from sensitive power semicon-

ductors. Variable speed operation maximizes fan life and a minimizes external environmental hazards.

Optional water cooled models contain integrated semiconductor chillers and air to water heat exchangers to manage cooling

of heat producing components. This option allows the power supply to be sealed from the environment enabling placement in

harsh environments. These units provide long life in plating facilities, electrodionization treatment plants, shipboard, and other

corrosive environments. Water cooling also permits power supplies to be stacked in high density equipment racks where air cool-

ing is not possible or desireable.

MAGNA-POWER ELECTRONICS, INC.

39 Royal Road Ph: [phone] Email: [e-mail]
Flemington, NJ Fax: [phone] http://www.magna-power.com

MULTIPROCESSOR EMBEDDED CONTROL

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ENHANCED CONTROLS AND DIAGNOSTICS

ATTENTION TO POWER QUALITY

PQ SERIES III power supplies contain circuitry to work harmoniously with other power equipment. Step-start contactors are

used to keep inrush current below full scale operating current. Filter components lower current harmonic content emanating

from the power supply and increase power factor to levels beyond 90%. Every power supply is tested at 90 to 125% nominal line

to insure satisfactory operation even under the worst line voltage conditions

DESIGNED FOR SAFETY

PQ SERIES III power supplies have extensive diagnostic functions -- all of which, when activated, take command to shut down

the system. Diagnostic functions include phase loss, excessive thermal conditions, over voltage trip, over current trip, fuse clear-

ing, and program line. Program line monitors externally applied analog set point signals to insure they are within the specied

range. Upon a diagnostic fault condition, main power is disconnected and the diagnostic condition is latched into memory.

Pressing the clear key clears the memory. All diagnostic functions can be monitored through a rear connector. Furthermore,

control functions can also be set through the rear connector to allow simultaneous control of one or more PQ SERIES III units.

PQ SERIES III supplies have three levels of over voltage/current protection: shutdown of controlling insulated gate bipolar

transistors (IGBT’s), disconnect of main power, and input fuses. After an over voltage/current trip condition, the supply must be

reset.

PQ SERIES III power supplies have push button start/stop controls. These controls are tied to a mechanical contactor which

operates with the electronic switches to break the ac mains when stop is commanded. Unlike competing products, an o means

both an electrical and mechanical break in the power circuit — not a break in an electronic switch. Safety comes rst at Magna-

Power Electronics.

REMOTE INTERFACE SOFTWARE

INCLUDED WITH ALL MODELS

The Remote Interface Software is shipped with PQ SERIES III

power supplies. The software provides the user with a quick

method to operate a Magna-Power Electronics’ power

supply under computer control. The Remote Interface

Software has six windows: the Virtual Control Panel,

Command Panel, Register Panel, Calibration Panel,

Firmware Panel, and Modulation Panel. The Virtual

Control Panel emulates the front panel of the PQ

SERIES III power supply, the Command

panel programs and reads SCPI

commands with user friendly but-

tons, the Register Panel programs

and reads registers, the Calibra-

tion Panel enables calibration of

the digital potentiometers, the

Firmware Panel enables the pro-

gram stored internal to the power

supply to be upgraded, and the

Modulation Panel eases program-

MAGNA-POWER ELECTRONICS, INC.

39 Royal Road Ph: [phone] Email: [e-mail]
Flemington, NJ Fax: [phone] http://www.magna-power.com

ming of modulation parameters.