Pacific Power Source 320ASX Data Sheet

ASX Series

AC Power Sources

1 - 12 kVA

1 / 3 Phase

Manual or

Programmable

Control

ASX SERIES AC POWER SOURCES

APPLICATIONS

ASX Series equipment is Pacific’s latest addition to its SMARTSOURCE™ line of AC Power Sources.
Power conversion within the ASX Series is achieved by high frequency pulse width modulation,
resulting in cool, quiet, and efficient operation

Other controllers are available for applications where the ASX Series would be used as a manually controlled
laboratory instrument, or a fixed parameter OEM frequency converter.

2

AC TEST POWER

The ASX Series Power Source is equipped with a powerful microcontroller to create a fully integrated test system.

It supplies a variety of power conditions to the device under test and meters/analyzes all output performance
parameters.

FREQUENCY/VOLTAGE CONVERSION

The ASX Series is an excellent source of stable AC voltage over the frequency range of 15 to 1,200 Hz. The output
frequency is quartz-crystal stabilized. Output voltages up to 600 VAC are provided.

PHASE CONVERSION

With the ability to provide singe and three-phase outputs, the ASX Series is the perfect choice to provide
1 Phase to 3 Phase or 3 Phase to 1 Phase conversion.

Standard FEATURES of each system include:

• 22 Waveform Library – Arbitrary Waveform Generator

• 15 to 1,200 Hz Operation – 5,000 Hz Bandwidth

• Precision Voltage Programming – 0.05% with CSC engaged

• Precision T

RUE-RMS metering of volts, amps, and power for displays and reporting

• RS-232 Interface with SCPI

• 1 Phase/3 Phase Switch Selectable Output from front panel or bus command

• 99 stored programs for both static and dynamic Transient Testing

Available OPTIONS of each system include:

• GPIB (IEEE-488.2) Interface with SCPI

• Programmable Output Impedance

• Harmonic Analysis (FFT) and Waveform Synthesis

• Load Surge Analysis and Waveform Capture

• LabVIEW for Windows

™ and LabWindows™ Instrument

Drivers

• Wide range of Output Magnetics for world-wide
testing.

CONTROLLER SELECTION GUIDE

Four controller models are available with the ASX-Series. They include 1 Phase and 3 Phase models for both manual and
programmable control.

• UPC-1M 1 Phase Manual Control 15 Hz to 1,200 Hz.

• UPC-3M 3 Phase Manual Control 15 Hz to 1,200 Hz.

• UPC-1 1 Phase Programmable Control 15 Hz to 1,200 Hz.

• UPC-3 3 Phase Programmable Control 15 Hz to 1,200 Hz.

All controllers provide manual operation from the front panel. Programmable Controllers may be programmed from the front
panel or from a remote interface. RS232 Interface is standard. IEEE 488 interface is optional.

TRANSIENT GENERATION

TIME BASED TRANSIENTS

Create and execute transients that occur over a specified time
segment to modify the output waveform, voltage, and frequency for
any or all phases. An output trigger is provided for synchronizing
external test equipment to the actual transient event.

WAVEFORM ANALYSIS (OPTIONAL)

Provides both graphic (using LabVIEW for Windows™) and numeric
displays of the harmonic structure of a voltage or current waveform.
Each waveform is analyzed for its harmonic content up to the 51

ST

harmonic. Amplitude and phase are reported to the local display.
The LabVIEW™ instrument driver displays numeric values as well as a
graphic summary of the harmonic spectrum.

WAVEFORM HARMONIC SYNTHESIS (OPTIONAL)

Quickly create virtually any AC test waveform by building it out of
harmonics. The process is as simple as keying in the magnitude and
phase angle of each desired harmonic up through the 51

ST

. Additionally,

waveforms can be created by downloading from a host PC.

CYCLE BASED TRANSIENTS

Create and execute transients that substitute a waveform in any or all
phases for 1 to 100 cycles. The waveform being substituted can be
selected and/or modified from the waveform library.

WAVEFORM LIBRARY

Up to 22 different waveforms can be stored in the waveform library for
execution as part of a steady state program or for substitution in any output
phase as part of a transient test program. Memory location #1 is a
noneditable high resolution sine wave. Locations 2-22 are editable and can
be substituted in any output phase.

Oscillograph of voltage
and current waveform at
load due to distribution
losses. THD=6.6%

Same conditions with
programmable Z

o

engaged. THD=0.25%

THD=8.7%

THD=22.2% THD=18.1%

WAVEFORM EDIT

WAVEFORM SYNTHESIS

HARMONIC CONTENT OF METERED WAVEFORM

TIME BASED TRANSIENTS

CYCLE BASED TRANSIENTS

ARBITRARY WAVEFORM GENERATION AND ANALYSIS

WAVEFORM EDIT

A full-featured editor permits modification of a stored waveform in both time
and frequency domains. This method can be used to quickly create spikes,
dropouts, notches and other sub-cycle wave conditions. The resulting modified
waveform is stored for execution in steady-state or transient programs.

0.

SELECT ITEM TO GRAPH

CURRENT VOLTAGE

%CONTENT

HARMONIC#

PHASE A

% THD

12.9

% OHD

12.9

% EHD

0.6

FREQ

400.00

Vrms

115.6
Irms

115.6

Ipeak

0.00

KW

0.0000

KVA

0.0000

PF

1.0

10.0

9.0

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0.0
024

6

8

10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 41

HARMONIC CONTENT OF

WAVEFORM UNDER ANALYSIS

GPIB address

1

EDIT WAVEFORM: NUMBER=16 RANGE=2-22
STARTING PHASE ANGLE=0 0-359.5°
ENDING PHASE ANGLE=0 0-359.5°
VOLTAGE IN PERCENT=-100 (+/-)0-100%

WAVEFORM SYNTHESIS: WAVEFORM #2
HARMONIC: 2nd 3rd 4th 5th 6th
CONTENT: .1% 0% 0% 0% 0%
ØANGLE: 0° 0° 0° 0° 0°

3

PROGRAMMABLE OUTPUT IMPEDANCE (OPTIONAL)

This feature creates positive, negative, or zero output impedance (Z0).

• Compensates for line distribution or transformer losses.

• Simulates a soft power line for product testing.

Compensation range is ±10% of the output voltage.

METERING WAVEFORM CONTROL/ANALYSIS

PROGRAM SETUP

• Copy a program

• Delete a program

• Erase all memory,
reset CPU

WAVEFORM SETUP

• Edit a waveform

• Copy a waveform

• Waveform synthesis

GENERAL SETUP

• UPC setup

• LCD setup

• UPC status

• Power source status

• Range control

• Slew rate setup

CALIBRATION MENU

• Execute externally
referenced calibration

• View calibration
constants

• SENSE Establishes either local or external

sense for metering and CSC.

• CSC Continuous Self Calibration – provides

for exceptional voltage accuracy.

• PROGRAM Programmable output impedance

dynamically compensates for output
transformer or line distribution losses.
Can simulate a soft power grid.

• TRANSITION Permits control of the transition time

when changing the output voltage and
frequency.

• FREQUENCY Sets min and max programmable

frequency limits.

• VOLTAGE Sets min and max programmable volt-

age limits.

SPECIAL FUNCTIONS ACCESSED THROUGH
UPC SETUP MENU

FUNCTION KEY
PROVIDES ACCESS TO SPECIAL FUNCTIONS

V/I METER: ENTRY: 120.0
FREQ=60.00 Va=120.0 Vb=120.0 Vc=120.0
SENSE=INT Vab=208.0 Vbc=208.0 Vca=208.0
MANUAL MODE Ia=06.00 Ib=06.22 Ic=06.15

POWER METER: PHASE A PHASE B PHASE C
KVA 0.720 0.746 0.738
KW 0.720 0.746 0.738
PF 1.000 1.000 1.000

AMPS METER: PHASE A PHASE B PHASE C
RMS 0.720 0.746 0.738
PEAK 1.044 1.119 1.383
CREST FACTOR 1.45 1.50 1.90

SETUP: PRESS 1 FOR PROGRAM SETUP

2 FOR WAVEFORM SETUP
3 FOR GENERAL SETUP
4 FOR CALIBRATION MENU

ØA CURRENT THD=17.8 % OHD=17.8 EHD=0.3%
HARMONIC: 2nd 3rd 4th 5th 6th
CONTENT: .1% 17.8% 0% 0% 0%
ØANGLE: 0° 0° 0° 0° 0°

WAVEFORM SYNTHESIS: WAVEFORM #2
HARMONIC: 2nd 3rd 4th 5th 6th
CONTENT: .1% 0% 0% 0% 0%
ØANGLE: 0° 0° 0° 0° 0°

EDIT WAVEFORM: NUMBER=16 RANGE=2-22
STARTING PHASE ANGLE=0 0-359.5°
ENDING PHASE ANGLE=0 0-359.5°
VOLTAGE IN PERCENT=-100 (+/-)0-100%

Z

°

TIME

LIMITS

LIMITS

4

TOTAL CONTROL, METERING, AND

ANALYSIS OF AC POWER.

SIMPLE INTUITIVE OPERATION.

PARAMETER SELECT KEYS

Select phase voltages and operating frequency when manual control is
desired. The selected parameter is indicated by the LCD display. The clear
key erases entries and keeps erasing with repeated pressing until the
basic VI screen is displayed.

ENTER KEY

Stores new parameter data that has been keyed in.

PROGRAM KEY

Selects 1 of 99 programs for edit or execution.

EDIT KEY

Selects the program edit mode and prompts for new
entry.

STORE KEY

Stores a program upon completion of editing.

DISPLAY KEY

Sequences through each metering screen:

• VI Meter

• Power Meter

• AMPS Meter

• Waveform Analysis (option)

INFORMATIVE 160 CHARACTER
LCD DISPLAY

• Soft green backlight

• Adjustable

EXECUTE KEY

Instantly executes a stored program that has been
selected with the program key.

SLEW KEYS

Smoothly change the designated voltage or frequency
parameters. Rates are separately programmable.

TRANSIENT (TRANS) KEY

Turns time based or cycle based transients On or Off.
Indicator is On when transient is executed.

OUTPUT ENABLE KEY

Turns the output contactor of the power source On or
Off. Indicator is On when the contactor is closed.

5

ASX Series Power Sources can be equipped with output transformers to provide an alternate output voltage
range. Selection of direct or transformer coupled range is performed by the controller via front panel or bus
command. The standard frequency range for transformer coupled outputs is 45 to 1,200 Hz. Standard output
ratios are 1.5:1, 2.0:1, and 2.5:1. Transformer outputs are supplied internally or externally via a Magnetics
Module as listed in the above table. Consult the factory for additional information regarding special output ranges
not listed above.

Notes:

1. All single phase output units (Model 115 ASX excepted) are operable with dual voltage ranges as listed. Three phase units are operable as single phase with dual
voltage range capability or as three phase. Output voltage ranges and 1Ø/3Ø conversions are selected by front panel or bus commands.

2. Output voltage ranges listed are for standard units. V

MAX

is output voltage with nominal input and full rated load applied. Other voltage ranges are available with the

output magnetics options below.

3. Peak Repetitive Pulse Current.

4. Single phase input: 100, 110, 120, 208, 220 and 240 VAC ±10%. Three phase input: 208,220,240,380,416 and 480 VAC ± 10%. (480 V input and 400 Hz
input are each available as a cost option.)

5. Current may vary with Power Factor.

OUTPUT FREQUENCY: 15 to 1,200 Hz. Full Power

LINE REGULATION

: 0.1% max for a ±10% line change.

LOAD REGULATION: 0.25% 15 to 400 Hz.

0.50% 400 to 1,200 Hz.
With external sense enabled.
Improves to less than 0.1% with
external sense and CSC enabled.

OUTPUT DISTORTION: 0.25% THD 15 to 200 Hz.

0.50% THD 200 to 1,200 Hz.

RIPPLE AND NOISE: -66 dB

RESPONSE TIME: 60 microseconds typical, 10-90%

load step.

All models are designed for operation in 19 inch equip­ment racks. Models 4 kVA and higher have side handles
for ease of handling.

MOUNTING: Standard 19 inch rack. Slide rails

are available as an option for all models.

HEIGHT: See model table above for panel height.

DEPTH: Approximately 24 inch, from the front

panel to the rear of the chassis.

COOLING: Front or side forced air intake with rear

exhaust. Automatic Fan Speed Control
for low acoustic noise and extended fan
life.

POWER SOURCE SPECIFICATIONS

DUAL RANGE OUTPUT MAGNETICS OPTIONS

MECHANICAL SPECIFICATIONS

ASX SERIES – POWER SOURCES

6

RATED

MODEL

P0WER

(VA)

115ASX

120ASX

140ASX

315ASX

320ASX

345ASX

360ASX

3120ASX

1,500

2,000

4,000

1,500

2,000

4,500

6,000

12,000

OUTPUT

FORM

1Ø 132 16 35

1Ø

1Ø

1Ø
3Ø

1Ø
3Ø

1Ø
3Ø

1Ø
3Ø

1Ø
3Ø

VOLTS MAX

(1)

OUTPUT

(V

)

RMS

150/300

135/270

132/264

132 V

150/300

150 V

135/270

135 V

132/264

132 V

135/270

135 V

(2)

L-N

L-N

L-N

L-N

L-N

OUTPUT

AMPS MAX

(A

RMS

(5)

)

20/14 90/45

32/16

12/6

4/Ø

20/12

7/Ø

36/12

12/Ø

48/16

16/Ø

96/48

300/100

32/Ø

OUTPUT

AMPS

(APK)

90/45

69/23

23/Ø

69/23

23/Ø

100/40

40/Ø

120/45

45/Ø

100/Ø

OUTPUT

(3)

MAGNETICS

INT.

N/A

EXT.

INT.

N/A

EXT.

EXT.

EXT.

INPUT
POWER
FORM

1Ø

47 to 440 Hz

1Ø

47 to 63 Hz

3Ø

47 to 440 Hz

1Ø

47 to 440 Hz

1Ø

47 to 63 Hz

3Ø

47 to 440 Hz

3Ø

47 to 440 Hz

3Ø

47 to 440 Hz

PANEL
HEIGHT

(4)

(IN.)

5

5

83/

51/

51/

83/

83/

153/

WEIGHT

(LBS.)

1

/

4

1

/

4

4

4

4

4

4

4

65

75

120

75

85

125

125

185

UPC SERIES CONTROLLER SPECIFICATIONS

Range: 15 to 1,200 Hz

Resolution: 4 significant digits,

eg. 50.00, 400.0, etc.

Accuracy: ±0.01%, 15 to 1,200 Hz

Range: 0 to V

MAX

in 0.1 VAC steps

Accuracy: Executive voltage is within ±50 mVAC

(0.05%) of command voltage referenced to
the internal voltmeter with CSC engaged.

Dynamic output impedance (Z

o

) is programmable,

±Z

o,

MAX

in 0.1% steps. Zovalue in milliohms and range
varies with the different models but usually results in a
±10% change in output voltage at maximum rated load
current. (Optional on UPC-1, UPC-3)

Phase Separation of Phases B and C are programmable
0 to 360° relative to phase A on the UPC-3 controller.
Phase separation is fixed at 120° and 240°, respectively,
on the UPC-3M controller.

Programmable Current limit is provided on the UPC-1 and
the UPC-3 controllers. Programmable range is from
0 to I

PEAK, MAX

of the power source.

Accuracy is ± 3.0%

Resolution is ± 0.05%

The UPC-1 and UPC-3 controllers contain waveform
libraries which store 22 executable waveforms in Non­Volatile RAM. Waveforms are editable via the front panel
or bus command.

Provides waveform creation by entering the magnitude
(% of fundamental) and phase angle for the 2

ND

through

the 51

ST

harmonics. (optional UPC-1 and UPC-3)

Reports voltage and waveform harmonic content as a %
of the fundamental and phase angle for the 2

ND

through

the 51

ST

harmonics. Harmonic distortion (THD, EHD, and
OHD) displayed in %. (optional on the UPC-1 and UPC-3)

The Output Voltmeter is true RMS reading and each
phase is measured independently. Line to neutral and line
to line voltages are displayed.

Range: 0-354 VAC

L-N

, 0-708 VAC

L-L

.

Resolution: 0.1 VAC to front panel, 0.001 VAC to

remote interface.

Accuracy: ±0.2% of range + cal. ref.

Output Ammeter is true RMS reading and each phase is
measured independently. RMS and peak currents along
with Crest factor are displayed.

Range: 300% of system current rating.

Resolution: 0.01 A

AC

to front panel, 0.001 AACto

remote interface.

Accuracy: ±0.2% of range + cal ref.

Measures True Power (kW), Apparent Power (kVA) and
power factor.

Range: Based on ammeter.

Resolution: 1.0 watts or VA to front panel.

1.0 watts or VA to remote interface.

Calculated and displayed to three significant digits.

Calculated and displayed to three significant digits.

Each phase is algebraically summed with UPC waveform
and amplified 25x to the direct coupled output.

±10 VDC input for each phase modulates the output
voltage ±100%.

TTL signals are provided to synchronize external test
equipment to the power source output.

1. Zero Crossing, Phase A.

2. Transient Pedestal - gate signal which is true during
the entire transient event.

3. DRM-High speed clock which is a multiple of the
fundamental output frequency used to synchronize
sub-cycle events.

The latest additions to Pacific’s SMARTSOURCE™ family of UPC Controllers are the UPC-1M, UPC-3M, UPC-1 and UPC-3. The
UPC Controller is a modular component of the ASX Series and is available in four configurations ranging from 1 Phase to 3
Phase and Manual Control to Programmable Control. The table below lists each model according to key features.

All UPC Controllers include precise metering functions with data displayed via a 160 character LCD display. This, along with
the 30-key front panel, provides the industry’s most powerful and user-friendly controller.

The UPC-1 and UPC-3 controllers are available with either the RS-232 or GPIB remote interface. Commands are structured
in accordance with SCPI (Standard Commands for Programmable Instruments). The RS-232 serial port operates up to 38.4
Bps. The GPIB interface is compatible with the IEEE-488.2.

7

FREQUENCY:

VOLTAGE:

PROGRAMMABLE
OUTPUT
IMPEDANCE:

PHASE ANGLE:

PROGRAMMABLE
CURRENT LIMIT:

WAVEFORM
LIBRARY:

WAVEFORM
SYNTHESIS:

WAVEFORM
ANALYSIS:

OUTPUT
VOLTMETER:

OUTPUT
AMMETER:

POWER:

POWER FACTOR:

CREST FACTOR:

EXTERNAL INPUTS:

AM INPUTS:

SYNC OUTPUTS:

CONTROLLER

MODEL

UPC - 1M

UPC - 3M

UPC - 1

UPC - 3

OUTPUT

MODES

WAVEFORM

LIBRARY

TRANSIENT

FUNCTIONS

PROGRAM

LIBRARY

PROG.
I LIMIT

PHASE
ANGLE

REMOTE

INTERFACE

WAVEFORM

SYNTHESIS/

ANALYSIS

PROG.

OUTPUT

IMPEDANCE

CSC

(1)

1Ø Sine N/A

N/A

NO

NO

YES

YES

NO

NO

OPTIONAL OPTIONAL

OPTIONAL OPTIONAL

NO

NO

YES

YES

YES

YES

NO

NO

NO

NO

99

Programs

99

Programs

NO

NO

YES

YES

Sine

Sine

+

21 Editable

Fixed
ØB = 120°
ØC = 240°

RS-232, std.

or

GPIB, opt.

RS-232, std.

or

GPIB, opt.

Prog.

0 to 360°

Sine

+

21 Editable

1Ø & 3Ø

1Ø

1Ø & 3Ø

1 CSC refers to Continuous Self Calibration

EXPANDING THE AC POWER SOURCE INTO AN AUTOMATED TEST SYSTEM

Harmonic Analysis

For Application Engineering Assistance

CALL FOR TECHNICAL AND APPLICATION ASSISTANCE

Pacific’s line of S

MARTSOURCE

™ AC Power Sources enable the engineer to simply automate his testing by using
Lab VIEW for Windows™ or LabWindows™. An extensive list of Virtual Instruments (VIs) are offered for
Pacific’s ASX Series Power Sources.

Contact the factory directly

or consult your local PPS Representative.

©2002 Pacific Power Source.
Irvine, CA, U.S.A. Subject to change without notice.

#8ASXCAT1102

17692 Fitch, Irvine, CA 92614

Phone: [phone] • Fax: [phone]

TOLL FREE: 800-854-2433

E-Mail: [e-mail]

WEB: www.pacificpower.com

Harmonic Synthesis

Metered Waveform

This VI presents one cycle of the output voltage and current.
Allows user to visually analyze input characteristics of the
UUT. Also calculates and displays V

RMS

, I

RMS

, I

PEAK

, Crest
Factor, True Power (kW), Apparent Power (kVA) and Power
Factor.

Waveform Library

This VI shows the SMARTSOURCE™ waveform library.
Twenty-two standard and custom waveforms can be
edited and selected for execution. Additional waveforms
can easily be uploaded or downloaded from your hard
drive to the library.

This VI provides a graphical interface for synthesizing wave­forms. The magnitude and phase angle is entered for each
required harmonic. The VI screen updates in real time as
each harmonic is entered. Adds insight and understanding
that only this dynamic approach can offer.

This VI displays the harmonic spectrum (1

st

-51st) of any out­put voltage or current vector. Both graphical and empirical
data are displayed.