AMETEK Ls Series User Manual

Lx \ Ls Series

AC Power Source

User Manual

Contact Information

Telephone: [phone] (toll free in North America)
858 450 0085 (direct)
Fax: [phone]
Email:
Domestic Sales: [e-mail]
International Sales: [e-mail]
Customer Service: [e-mail]

Web: www.programmablepower.com

March 2010 Document No. 7004-960 Rev. H

User Manual Lx / Ls Series

Refers to Lx Series AC Power Source/Analyzers and Ls Series AC Power Sources.

Models:

Single chassis: 3000Lx, 4500Lx, 6000Lx
Multiple chassis: 9000Lx/2, 12000Lx/2, 13500Lx/3, 18000Lx/3

Single chassis: 3000Ls, 4500Ls, 6000Ls
Multiple chassis: 9000Ls/2, 12000Ls/2, 13500Ls/3, 18000Ls/3

Manual revision: H, March 2011

About AMETEK

AMETEK Programmable Power, Inc., a Division of AMETEK, Inc., is a global leader in the design
and manufacture of precision, programmable power supplies for R&D, test and measurement,
process control, power bus simulation and power conditioning applications across diverse
industrial segments. From bench top supplies to rack-mounted industrial power subsystems,
AMETEK Programmable Power is the proud manufacturer of Elgar, Sorensen, California
Instruments and Power Ten brand power supplies.

AMETEK, Inc. is a leading global manufacturer of electronic instruments and electromechanical
devices with annualized sales of $2.5 billion. The Company has over 11,000 colleagues working
at more than 80 manufacturing facilities and more than 80 sales and service centers in the United
States and around the world.

Trademarks

AMETEK is a registered trademark of AMETEK, Inc.
Other trademarks, registered trademarks, and product names are the property of their respective
owners and are used herein for identification purposes only.

Notice of Copyright

Lx\Ls Series AC Power Source, User Manual

rights reserved.

© 2010 AMETEK Programmable Power, Inc. All

Exclusion for Documentation

UNLESS SPECIFICALLY AGREED TO IN WRITING, AMETEK PROGRAMMABLE POWER, INC.
(“AMETEK”):

(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY

TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER
DOCUMENTATION.

(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR

EXPENSES, WHETHER SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL,
WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH
INFORMATION WILL BE ENTIRELY AT THE USER’S RISK, AND

(c) REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH,

ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE
TRANSLATION, THE ACCURACY CANNOT BE GUARANTEED. APPROVED AMETEK CONTENT
IS CONTAINED WITH THE ENGLISH LANGUAGE VERSION, WHICH IS POSTED AT
WWW.PROGRAMMABLEPOWER.COM.

Date and Revision

March 2011 Revision H

Part Number

7004-960

Contact Information

Telephone: [phone] (toll free in North America)
858 450 0085 (direct)
Fax: [phone]
Email: [e-mail]
[e-mail]
Web: www.programmablepower.com

i

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ii

WARNING

Hazardous voltages may be present when covers are removed. Qualified
personnel must use extreme caution when servicing this equipment.
Circuit boards, test points, and output voltages also may be floating above
(below) chassis ground.

WARNING

The equipment used contains ESD sensitive ports. When installing
equipment, follow ESD Safety Procedures. Electrostatic discharges might
cause damage to the equipment.

Important Safety Instructions

Before applying power to the system, verify that your product is configured properly for your
particular application.

Only qualified personnel who deal with attendant hazards in power supplies, are allowed to perform
installation and servicing.

Ensure that the AC power line ground is connected properly to the Power Rack input connector or
chassis. Similarly, other power ground lines including those to application and maintenance
equipment must be grounded properly for both personnel and equipment safety.

Always ensure that facility AC input power is de-energized prior to connecting or disconnecting any
cable.

In normal operation, the operator does not have access to hazardous voltages within the chassis.
However, depending on the user’s application configuration, HIGH VOLTAGES HAZARDOUS TO
HUMAN SAFETY may be normally generated on the output terminals. The customer/user must
ensure that the output power lines are labeled properly as to the safety hazards and that any
inadvertent contact with hazardous voltages is eliminated.

Guard against risks of electrical shock during open cover checks by not touching any portion of the
electrical circuits. Even when power is off, capacitors may retain an electrical charge. Use safety
glasses during open cover checks to avoid personal injury by any sudden component failure.

Neither AMETEK Programmable Power Inc., San Diego, California, USA, nor any of the subsidiary
sales organizations can accept any responsibility for personnel, material or inconsequential injury,
loss or damage that results from improper use of the equipment and accessories.

SAFETY SYMBOLS

iii

Product Family: Lx \ Ls Series

Warranty Period: One Year

WARRANTY TERMS

AMETEK Programmable Power, Inc. (“AMETEK”), provides this written warranty covering the
Product stated above, and if the Buyer discovers and notifies AMETEK in writing of any defect in
material or workmanship within the applicable warranty period stated above, then AMETEK may,
at its option: repair or replace the Product; or issue a credit note for the defective Product; or
provide the Buyer with replacement parts for the Product.

The Buyer will, at its expense, return the defective Product or parts thereof to AMETEK in
accordance with the return procedure specified below. AMETEK will, at its expense, deliver the
repaired or replaced Product or parts to the Buyer. Any warranty of AMETEK will not apply if the
Buyer is in default under the Purchase Order Agreement or where the Product or any part
thereof:

is damaged by misuse, accident, negligence or failure to maintain the same as

specified or required by AMETEK;

is damaged by modifications, alterations or attachments thereto which are not

authorized by AMETEK;

is installed or operated contrary to the instructions of AMETEK;
is opened, modified or disassembled in any way without AMETEK’s consent; or
is used in combination with items, articles or materials not authorized by AMETEK.

The Buyer may not assert any claim that the Products are not in conformity with any warranty
until the Buyer has made all payments to AMETEK provided for in the Purchase Order Agreement.

PRODUCT RETURN PROCEDURE

1. Request a Return Material Authorization (RMA) number from the repair facility (must be

done in the country in which it was purchased):

In the USA, contact the AMETEK Repair Department prior to the return of the

product to AMETEK for repair:
Telephone: [phone], ext. 2295 or ext. 2463 (toll free North America)

858-450-0085, ext. 2295 or ext. 2463 (direct)

Outside the United States, contact the nearest Authorized Service Center

(ASC). A full listing can be found either through your local distributor or our
website, www.programmablepower.com, by clicking Support and going to the
Service Centers tab.

2. When requesting an RMA, have the following information ready:

Model number
Serial number
Description of the problem

NOTE: Unauthorized returns will not be accepted and will be returned at the shipper’s expense.

NOTE: A returned product found upon inspection by AMETEK, to be in specification is subject to

an evaluation fee and applicable freight charges.

iv

User Manual Lx / Ls Series

Table of Contents

1. Introduction ..................................................................................................................................... 9

1.1 General Description ........................................................................................................................... 9

1.2 Lx Series and Ls Series Differences ................................................................................................. 9

1.3 Manual organization and format ...................................................................................................... 10

2. Specifications ................................................................................................................................ 11

2.1 Electrical .......................................................................................................................................... 11

2.2 Mechanical ...................................................................................................................................... 22

2.3 Environmental .................................................................................................................................. 22

2.4 Front Panel Controls ........................................................................................................................ 23

2.5 Special Features.............................................................................................................................. 23

2.6 Available Options – Lx Series .......................................................................................................... 24

2.7 Available Options – Ls Series .......................................................................................................... 30

3. Unpacking and Installation ............................................................................................................ 35

3.1 Unpacking........................................................................................................................................ 35

3.2 Power Requirements ....................................................................................................................... 35

3.3 Mechanical Installation .................................................................................................................... 35

3.4 AC Input Wiring - INPUT ................................................................................................................. 38

3.5 Output Connections ......................................................................................................................... 38

3.6 Connectors - Rear Panel ................................................................................................................. 44

3.7 Basic Initial Functional Test ............................................................................................................. 49

3.8 Multi-box Configurations (-MB Option) ............................................................................................ 51

3.9 Clock and Lock Mode (-LKM/-LKS Option) ...................................................................................... 52

4. Front Panel Operation ................................................................................................................... 54

4.1 Tour of the Front Panel .................................................................................................................... 54

4.2 Menu Structure ................................................................................................................................ 60

4.3 Output Programming ....................................................................................................................... 80

4.4 Waveform Management .................................................................................................................. 82

4.5 Measurements ................................................................................................................................. 85

4.6 Harmonic Analysis ........................................................................................................................... 86

4.7 Transient Programming ................................................................ ................................ ................... 86

4.8 Setting the Power-on Initialization Values ....................................................................................... 91

4.9 Remote Inhibit Function................................................................................................................... 92

5. Principle of Operation ................................................................................................................... 93

5.1 Overall Description .......................................................................................................................... 93

5.2 Controller Assembly ........................................................................................................................ 93

6. Calibration ..................................................................................................................................... 95

6.1 Recommended Calibration Equipment ............................................................................................ 95

6.2 Calibration Screens ......................................................................................................................... 95

6.3 Measurement Calibration ................................................................................................................ 96

6.4 Output Calibration ............................................................................................................................ 97

6.5 Phase Offset Calibration ................................................................ ................................ .................. 98

6.6 Non-Routine Output Gain Calibration .............................................................................................. 99

6.7 Non-Routine Amplifier Balance Adjustment .................................................................................. 101

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User Manual Lx / Ls Series

7. Service ........................................................................................................................................ 102

7.1 Cleaning ........................................................................................................................................ 102

7.2 General ......................................................................................................................................... 102

7.3 Basic operation ............................................................................................................................. 102

7.4 Isolating amplifier failures in multi-box systems ............................................................................ 104

7.5 Advanced Troubleshooting. .......................................................................................................... 105

7.6 Factory Assistance ........................................................................................................................ 105

7.7 Fuses ............................................................................................................................................ 105

7.8 Replaceable Parts ......................................................................................................................... 106

8. Option -160: RTCA / DO-160D ................................................................................................... 108

8.1 General ......................................................................................................................................... 108

8.2 Initial Setup ................................................................................................................................... 108

8.3 Tests Performed ............................................................................................................................ 108

8.4 Front Panel Operation -160 ........................................................................................................... 109

8.5 Normal State tests......................................................................................................................... 110

8.6 EMERGENCY TEST ..................................................................................................................... 118

8.7 ABNORMAL TEST ........................................................................................................................ 120

9. Option -704: MIL-STD 704 Rev D through F (MIL704 Mode) ..................................................... 123

9.1 General ......................................................................................................................................... 123

9.2 Initial Setup ................................................................................................................................... 123

9.3 Test Revision ................................................................................................................................ 123

9.4 Tests Performed ............................................................................................................................ 124

9.5 Front Panel Operation MIL704 ...................................................................................................... 125

9.6 Steady State Tests ........................................................................................................................ 126

9.7 EMERGENCY TEST ..................................................................................................................... 129

9.8 ABNORMAL TEST ........................................................................................................................ 130

10. Option –704F: MIL-STD 704 Rev A through F (MS704 mode) .................................................. 132

10.1 General ......................................................................................................................................... 132

10.2 Initial Setup ................................................................................................................................... 132

10.3 Test Revision ................................................................................................................................ 132

10.4 Test Standard Reference .............................................................................................................. 133

10.5 Available Tests .............................................................................................................................. 133

10.6 Front Panel Operation MS704 ...................................................................................................... 135

10.7 Test Steps and Execution Times Summary .................................................................................. 138

10.8 MS704 Operation Using the LxGui Software ................................................................................ 185

11. Error Messages .......................................................................................................................... 193

12. Index ........................................................................................................................................... 199

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User Manual Lx / Ls Series

List of Figures

Figure 2-1: 3000Lx Voltage / Current Rating Chart for 150V AC Range in 3 phase mode. ................................ 16

Figure 2-2: 4500Lx Voltage / Current Rating Chart for 150V AC Range in 3 phase mode. ................................ 17

Figure 2-3: 6000Lx Voltage / Current Rating Chart for 150V AC Range in 3 phase mode. ................................ 17

Figure 2-4: 3000Ls Voltage / Current Rating Chart for 135V AC Range in 3 phase mode. ................................ 18

Figure 2-5: 4500Ls Voltage / Current Rating Chart for 135V AC Range in 3 phase mode. ................................ 18

Figure 2-6: 6000Ls Voltage / Current Rating Chart for 135V AC Range in 3 phase mode. ................................ 19

Figure 3-1: Rear Panel Connector Locations – Lx Series ................................................................................... 36

Figure 3-2: Rear Panel Connector Locations – Ls Series ................................................................................... 37

Figure 3-3: 9000Lx/2 and 9000Ls/2 Output Wiring ............................................................................................. 41

Figure 3-4: 9000Lx/2, 9000Ls/2, 12000Lx/2 or 12000Ls/2 Wiring diagram - 3 Phase mode .............................. 42

Figure 3-5: 13500Lx/2, 13500Ls/3, 18000Ls/3 or 18000Ls/3 Wiring diagram - 3 Phase mode .......................... 43

Figure 3-6: Clock and Lock Connections ............................................................................................................ 53

Figure 4-1: Shuttle Knob ..................................................................................................................................... 56

Figure 4-2: Menu Keys ........................................................................................................................................ 57

Figure 4-3: Measurement Screen ........................................................................................................................ 59

Figure 4-4: PROGRAM Menu .............................................................................................................................. 63

Figure 4-5: CONTROL Menus ............................................................................................................................. 64

Figure 4-6: MEASUREMENT Screen .................................................................................................................. 68

Figure 4-7: Selecting a Waveform ....................................................................................................................... 82

Figure 4-8: Selecting Waveforms for Single Phase or All Phases ...................................................................... 82

Figure 4-9: Waveform Crest Factor Affects Max. rms Voltage ............................................................................ 83

Figure 4-10: Pulse Transients ............................................................................................................................. 87

Figure 4-11: List Transients ................................................................................................................................. 87

Figure 4-12: Sample Transient Output Sequence ............................................................................................... 89

Figure 4-13: Switching Waveforms in a Transient List ........................................................................................ 90

Figure 4-14: TRANSIENT Menu .......................................................................................................................... 90

Figure 6-1: Location of Gain pot adjustments ..................................................................................................... 99

Figure 8-1: Application Menu ............................................................................................................................ 109

Figure 8-2: DO160 Main Menus ........................................................................................................................ 109

Figure 8-3: Normal state screens ...................................................................................................................... 110

Figure 8-4: Voltage Modulation - Frequency characteristics ............................................................................. 113

Figure 8-5: Frequency Modulation..................................................................................................................... 114

Figure 8-6: Power Interrupt................................................................................................................................ 115

Figure 8-7: Power Interrupt for Group2/A(NF) and Group3/A(WF) ................................................................... 116

Figure 8-8: Emergency Screens ........................................................................................................................ 118

Figure 8-9: Abnormal Screen ............................................................................................................................ 120

Figure 9-1: Applications Menu ........................................................................................................................... 125

Figure 9-2: MIL704 Menu .................................................................................................................................. 125

Figure 9-3: Steady State Menu .......................................................................................................................... 126

Figure 9-4: Emergency Menu ............................................................................................................................ 129

Figure 9-5: Abnormal Screens .......................................................................................................................... 130

Figure 10-1: Applications Menu ......................................................................................................................... 135

Figure 10-2: MIL704 Run/Status ....................................................................................................................... 135

Figure 10-3: Mil704 Run/Status ......................................................................................................................... 135

Figure 10-4: Revision/Group Menu ................................................................................................................... 136

Figure 10-5: Test selection Menu ...................................................................................................................... 136

Figure 10-6: Section and Test Condition ........................................................................................................... 137

Figure 10-7:Steady State frequency .................................................................................................................. 137

Figure 10-8: Required SAC-106 Test Setup. ..................................................................................................... 140

Figure 10-9: Required TAC-106 Test Setup. ................................ ..................................................................... 153

Figure 10-10: Required SVF-106 Test Setup. ................................................................................................... 166

Figure 10-11: Required TVF-106 Test Setup. ................................................................................................... 174

Figure 10-12: Required SXF-106 Test Setup. ................................................................................................... 181

Figure 10-13: LxGui MS704 Option Screen ...................................................................................................... 186

Figure 10-14: LxGui MS704 Option EUT Performance Test Screen - Measurements ...................................... 187

Figure 10-15: LxGui MS704 Option EUT Performance Test Screen - Waveforms ........................................... 189

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User Manual Lx / Ls Series

List of Tables

Table 3-1: Output Terminal connections. ............................................................................................................ 40

Table 3-2: Rear Panel Connectors ..................................................................................................................... 45

Table 3-3: AC Input Terminal Block Connection Description .............................................................................. 45

Table 3-4: SMA Connectors – Lx Series ............................................................................................................. 46

Table 3-5: SMA Connectors – Ls Series ............................................................................................................. 46

Table 3-6: BNC Connectors ................................................................................................................................ 47

Table 3-7: External Sense Connector ................................................................................................................. 47

Table 3-8: RS232C Connector ............................................................................................................................ 47

Table 3-9: Full Load Resistance – Lx Series ...................................................................................................... 50

Table 3-10: Full Load Resistance – Ls Series .................................................................................................... 50

Table 4-1: Menu Tree .......................................................................................................................................... 63

Table 4-2: Sample Transient List ........................................................................................................................ 89

Table 4-3: Factory Default Power on Settings .................................................................................................... 91

Table 4-4: Factory Default Power on Settings .................................................................................................... 92

Table 6-1: Calibration Load Values- Single-chassis configurations .................................................................... 96

Table 6-2: Calibration Load Values- Multi-chassis configurations ...................................................................... 96

Table 6-3: Output Calibration Coefficients - Factory Defaults. ............................................................................ 97

Table 6-4: Output Calibration Coefficients - Factory Defaults. .......................................................................... 100

Table 6-5: Amplifier balance adjustments ......................................................................................................... 101

Table 7-1: Basic Symptoms .............................................................................................................................. 102

Table 7-2: Replaceable Parts and Assemblies ................................................................................................. 107

Table 8-1: Normal Voltage and Frequency minimum ....................................................................................... 111

Table 8-2: Normal Voltage and Frequency Maximum ....................................................................................... 111

Table 8-3: Normal Voltage Unbalance .............................................................................................................. 112

Table 8-4: Airbus mode voltage modulation. .................................................................................................... 112

Table 8-5: Normal VoltageSurge Sequence ..................................................................................................... 116

Table 8-6: Normal Frequency Transient Sequence .......................................................................................... 117

Table 8-7: Normal Frequency Variation Sequence ........................................................................................... 117

Table 8-8: Emergency Voltage and Frequency Minimum ................................................................................. 118

Table 8-9: Emergency Voltage and Frequency Maximum ................................................................................ 118

Table 8-10: Emergency Voltage Unbalance ..................................................................................................... 119

Table 8-11: Abnormal Voltage Minimum ........................................................................................................... 120

Table 8-12: Abnormal Voltage Maximum .......................................................................................................... 120

Table 8-13: Abnormal Voltage Unbalance ........................................................................................................ 121

Table 8-14: Abnormal Frequency Transient...................................................................................................... 122

Table 9-1: Steady state voltage ........................................................................................................................ 126

Table 9-2: Steady state frequency .................................................................................................................... 127

Table 9-3: Frequency Modulation ..................................................................................................................... 127

Table 9-4: Abnormal Over Frequency ............................................................................................................... 131

Table 9-5: Abnormal Under Frequency ............................................................................................................. 131

Table 10-1: DO160 Test Groups ....................................................................................................................... 133

Table 10-2: Test Selections .............................................................................................................................. 136

Table 10-3: Steady state frequency .................................................................................................................. 137

Table 11-1: Error Messages.............................................................................................................................. 198

8

User Manual Lx / Ls Series

1. Introduction

This instruction manual contains information on the installation, operation, calibration and
maintenance of the Lx Series and Ls Series AC power sources.

1.1 General Description

The Lx Series of AC Power Source is a family of high efficiency, rack mountable, AC Power
Source/Analyzer combinations that provide a precise output with low distortion and advanced
measurements. Standard output voltage ranges are 150 Vac and 300 Vac RMS. The Lx Series
can operate in either single or three-phase mode.

The Ls Series of AC Power Source is a family of high efficiency, rack mountable, AC Power
Sources that provide a precise output with low distortion. Standard output voltage ranges are
135 Vac and 270 Vac RMS. The Ls Series is available in either single (-1) or three-phase mode
(3). A –MODE option is available on –3 Ls models.

For power levels above 4500 VA, two or more Lx or Ls series units can be combined using the
system interface in a parallel mode of operation. These multi chassis systems consist of one
master unit with controller and one or two auxiliary units without controllers. Only the master unit
has a front panel keyboard and display.

Read the installation instructions carefully before attempting to install and operate the Lx / Ls
Series power systems.

1.2 Lx Series and Ls Series Differences

The Lx Series and Ls Series of AC power sources are both based on the same AC power source
hardware platform and share many common components. The differences are primarily in
configuration and options. This manual covers both model series. Some menus and screen
shown in this manual may not apply to Ls Series AC sources without the –ADV option and / or –
MODE option.

1.2.1 Firmware differences

The Lx Series is fully featured and supports all commands listed in the programming manual.
The Ls Series provides most basic functions in its standard configurations. More advanced

features can be added by specifying the –ADV (advanced) option. If the –ADV option is installed,
all commands listed in this programming manual are supported. If not, commands related to
arbitrary waveforms and harmonic analysis measurements are not supported and will generate a
“-113 Syntax Error” message.

1.2.2 Hardware differences

In addition to the firmware differences described, the following hardware differences exist
between the standard Lx Ac source and the Ls AC source.

Lx has a 150V / 300 V rms output range pair. Optional ranges of 135/270 (-HV option)

and 200/400 (-EHV option) are available at time of order.

Ls has a 135 V / 270 V rms output range pair. Optional ranges of 156/312 (-HV option)

and 200/400 (-EHV option) are available at time of order.

The Lx rear panel connector labeling is compliant with the California Instruments iL

Series which it replaces and the HP/Agilent model 6834B.

9

User Manual Lx / Ls Series

The Ls rear panel connector labeling is compliant with the California Instruments L

Series.
The Lx Series comes standard with both GPIB and RS232C interfaces.
The Ls Series comes standard with an RS232C only, An optional GPIB interface (-GPIB

option) is available.

Note: Both interfaces use the SCPI command syntax as described in the programming
manual.

The Lx Series provides both three phase and single phase output modes which can be

selected from the front panel or over the bus.
The Ls Series provides either three phase (-3 models) or single phase (-1 models).

Three phase Ls Series sources may optionally be equipped with the –MODE option

which provides the same phase mode switching as the Lx Series.

1.3 Manual organization and format

All user documentation for California Instruments power sources is provided on CDROM in
electronic format. (Adobe Portable Document Format) The required Adobe PDF viewer is
supplied on the same CDROM. This manual may be printed for personal use if a hardcopy is
desired. To request a hardcopy from California Instruments, contact customer service at

[e-mail]. There will be an additional charge for printed manuals.

This manual contains sections on installation, normal use, maintenance and calibration. The Lx
Series is equipped with both GPIB and RS232C interfaces. The Ls Series is equipped with a
RS232C interface. An optional GPIB interface can be specified at the time of order. Refer to the
Lx / Ls Series Programming manual for information on using the remote control interface and
command syntax. The programming manual (P/N 7004-961) is provided on the same CDROM
as this user manual.

California Instruments may make updated versions of this manual available from time to time in
electronic format through it’s website. To obtain an updated manual revision if available, check
the California Instruments Manual download page at www.calinst.com. You need to register as a
customer to obtain free access to manual and software downloads.

10

User Manual Lx / Ls Series

Parameter

Specification

Line Voltage:
(3 phase, 3 wire
+ ground (PE))

3000Lx, 4500Lx, 9000Lx/2, 13500Lx/3:
Std: 208 - 230 VLL ± 10%

-400: 400 VLL 10%
6000Lx, 12000Lx/2, 18000Lx/3:

Std: 208 - 230 VLL + 10%

1

Note: Each Lx/ Ls chassis requires
its own AC service.

Note: 3000Lx/Ls may be operated
from 208-230 V L-N single phase
AC input between L2 and L3 on
TB3 for3000Lx or ØB- ØC on TB3
for 3000Ls.

Line VA:
(total)

3000Lx / Ls 5900 VA / 4100 W
4500Lx / Ls 8900 VA / 5900 W(x2 for 9000Lx/2, x3 for 13500Lx/3)
6000Lx / Ls 11900 VA / 7900 W (x2 for 12000Lx/2, x3 for 18000Lx/3

Line Current:
(per phase)

3000Lx / Ls Std: 19 Arms @ 187 VLL, 3 phase AC input.

[32 Arms @ 187 VLN single phase AC input. Connect
between TB3 L2-L3 on 3000Lx or TB3 ØB- ØC on

3000Ls]

-400: 10 Arms @ 360 VLL, 3 phase AC input.

4500Lx / Ls Std: 31 Arms @ 187 VLL

-400: 16 Arms @ 360 VLL
6000Lx / Ls Std: 38 Arms @ 208 VLL
Currents shown are for single chassis models. For multi-chassis

configurations, currents are per chassis.

2. Specifications

Specifications shown are valid over an ambient temperature range of 25 5 C and apply after a
30 minute warm-up time. Unless otherwise noted, all specifications are per phase for sine wave
output into a resistive load. For three phase configurations or mode of operation, all
specifications are for Line to Neutral (L-N) and phase angle specifications are valid under
balanced load conditions only.

Specifications for Ls models are identical to those for the Lx except where noted.

2.1 Electrical

2.1.1 Input

1

Note that operation below 208V L-L AC input is available with the following derating considerations:

1) If operating at less than a 5000 VA output power there will be no affect on the output.

2) If operating in 3-phase mode, with a full-scale output voltage and a frequency less than three times the line
frequency, the voltage distortion may exceed specification between 5500 and 6000 VA output.

3) If operating in 1-phase mode above 5000 VA, above 85% of full-scale output voltage and an output frequency
less than three times the line frequency, the voltage distortion may exceed specification and the output may fault
with a crest factor load more than 2.
In most applications, these conditions are not likely to exits. At AC input voltages of 208 V or higher, the 6000Lx/Ls
meets specifications under all conditions.

11

User Manual Lx / Ls Series

Parameter

Specification

Line Frequency:

47-440 Hz

Efficiency:

75 % (typical) depending on line and load

Power Factor:

0.65 (typical)

Inrush Current:

50 Apk @ 253VLL per chassis
83 Apk @ 400 V

LL

per chassis

Note: Each Lx chassis requires
its own AC service.

Hold-Up Time:

> 10 ms

Isolation
Voltage:

300 VAC RMS input to output
1350 VAC input to chassis

12

User Manual Lx / Ls Series

Output Parameter

Specification

Modes

AC

Voltage:

Ranges (L-N):

Lx Series

Ls Series

Low range

0 - 150 Vrms

0 - 135 Vrms

High range

0 - 300 Vrms

0 - 270 Vrms

Resolution:

0.1 V

0.1 V

Programming
Accuracy:

± (0.05% + 0.25 V) from 5V to FS.

Distortion THD1: Standard:

< 1 % [45 - 1000 Hz]
< 1 % + 1%/kHz [> 1000 Hz]
(harmonics and noise to 300 kHz)

With –HF and –LKM option:
< 2 % [45 - 1000 Hz]
< 2 % + 1%/kHz [> 1000 Hz]
(harmonics and noise to 300 kHz)

Load Regulation:
ALC mode ON

0.1 % FS

External Sense

Up to 10Vrms can be dropped across each load lead Fout < 400 Hz.

Up 2.5 Vrms can be dropped across each load lead Fout > 400 Hz

Internal or External sense selectable.

Line Regulation:

0.02% for 10% input line change

DC Offset Voltage:

0.0 V

Output Noise:
(20 kHz to 1 MHz)

< 100 mV

RMS typical

Output Coupling

Transformer coupled

Output Impedance
(Z)

Z = Vrange * 0.001 / I_load

Power – Lx Series (total power for all phases, either range, at full scale voltage)

35° C Ambient

50° C Ambient

Model

3000Lx

4500Lx

6000Lx

3000Lx

4500Lx

6000Lx

Single Phase Mode

3 KVA

4.5 KVA

5.76 KVA

3 KVA

4 KVA

5 KVA

Three Phase Mode (per

phase)

1 KVA

1.5 KVA

1.9 KVA

1 KVA

1.35 KVA

1.7 KVA

Model

9000Lx/2

12000Lx/2

9000Lx/2

12000Lx/2

Single Phase Mode

9 KVA

11.5 KVA

8 KVA

10 KVA

Three Phase Mode (per

phase)

3 KVA

3.8 KVA

2.7 KVA

3.3 KVA

Model

13500Lx/3

18000Lx/3

13500Lx/3

18000Lx/3

2.1.2 Output

1

The distortion specification for the Lx Series applies at full-scale voltage, full resistive load conditions.

13

User Manual Lx / Ls Series

Output Parameter

Specification

Single Phase Mode

13.5 KVA

5.76 KVA

12 KVA

15 KVA

Three Phase Mode (per

phase)

4.5 KVA

17.3 KVA

4 KVA

5 KVA

Power – Ls Series (total power for all phases, either range, at full scale voltage)

35° C Ambient

50° C Ambient

Model

3000Ls

4500Ls

6000Ls

3000Ls

4500Ls

6000Ls

Single Phase Mode

3 KVA

4.5 KVA

6 KVA

3 KVA

4 KVA

5 KVA

Three Phase Mode (per

phase)

1 KVA

1.5 KVA

2 KVA

1 KVA

1.35 KVA

1.7 KVA

Model

9000Ls/2

12000Ls/2

9000Ls/2

12000Ls/2

Single Phase Mode

9 KVA

12 KVA

8 KVA

10 KVA

Three Phase Mode (per

phase)

3 KVA

4 KVA

2.7 KVA

3.3 KVA

Model

13500Ls/3

18000Ls/3

13500Ls/3

18000Ls/3

Single Phase Mode

13.5 KVA

6 KVA

12 KVA

15 KVA

Three Phase Mode (per

phase)

4.5 KVA

18 KVA

4 KVA

5 KVA

Maximum Current at Full Power – Lx Series

Note: Current, maximum amps per phase available at on low voltage range. 3000Lx and 4500Lx

operate in constant power mode up to currents shown at reduced voltage. See Figure 2-1.
For 9000Lx/2 and 12000Lx/2, currents are 2 x 4500Lx and 6000Lx.
For 13500Lx/3 and 18000Lx/3, currents are 3 x 4500Lx and 6000Lx

Model

3000Lx

4500Lx

6000Lx

Single Phase Mode:
Max. RMS, low Vrange

38.4 A

38.4 A

38.4 A

Three Phase Mode:
Max. RMS, low Vrange
per phase

12.8 A

12.8 A

12.8 A

Note: Current derates linearly from 50% of voltage range to 20% of specified current at 10% of

voltage range.
Current in High voltage range is reduced by a factor of 2.

Note: For 9000Lx/2 and 12000Lx/2, currents are 2 x 4500Lx and 6000Lx.

For 13500Lx/3 and 18000Lx/3, currents are 3 x 4500Lx and 6000Lx

Maximum Current at Full Power – Ls Series

Note: Current, maximum amps per phase available at on low voltage range. 3000Ls and 4500Ls

operate in constant power mode up to currents shown at reduced voltage. See Figure 2-1.
For 9000Ls/2 and 12000Ls/2, currents are 2 x 4500Ls and 6000Ls.
For 13500Ls/3 and 18000Ls/3, currents are 3 x 4500Ls and 6000Ls

Model

3000Ls

4500Ls

6000Ls

Single Phase Mode:
Max. RMS, low Vrange

44.4 A

44.4 A

44.4 A

Three Phase Mode:
Max. RMS, low Vrange
per phase

14.8 A

14.8 A

14.8 A

Note: Current derates linearly from 50% of voltage range to 20% of specified current at 10% of

14

User Manual Lx / Ls Series

Output Parameter

Specification

voltage range.
Current in High voltage range is reduced by a factor of 2.

Note: For 9000Ls/2 and 12000Ls/2, currents are 2 x 4500Ls and 6000Ls.

For 13500Ls/3 and 18000Ls/3, currents are 3 x 4500Ls and 6000Ls

Maximum Current at Full Scale Voltage – Lx Series

Model

3000Lx

4500Lx

6000Lx

Single Phase Mode:
Max. RMS, low Vrange

20 A

30 A

38.4 A

Three Phase Mode:
Max. RMS, low Vrange
per phase

6.67 A

10 A

12.8 A

Current Limit mode

Programmable, CC or CV mode

Maximum Current at Full Scale Voltage – Ls Series

Model

3000Ls

4500Ls

6000Ls

Single Phase Mode:
Max. RMS, low Vrange

22.2 A

33.3 A

44.4 A

Three Phase Mode:
Max. RMS, low Vrange
per phase

7.4 A

11.1 A

14.8 A

Current Limit mode

Programmable, CC or CV mode

Repetitive Peak Current

Model

3000Lx / Ls

4500Lx / Ls

6000Lx / Ls

Max. Peak Current:

6 x RMS current at FS

4 x RMS current at FS

3 x RMS current at FS

Note: For 9000Lx / Ls /2 and 12000Lx / Ls /2, currents are 2 x 4500Lx/Ls and 6000Lx/Ls.

For 13500Lx / Ls/3 and 18000Lx / Ls /3, currents are 3 x 4500Lx/Ls and 6000Lx/Ls

Frequency

Range:

45 Hz - 1000 Hz

Resolution1:

0.01 Hz [< 81.91 Hz]

0.1 Hz [> 82.0 to 819.1 Hz]
1 Hz2 [> 819 Hz]

Accuracy:

± 0.025 %

Temp. Coefficient

± 5 ppm of value / °C

Stability:

± 15 ppm of value

Phase (3 phase mode)

Range:

Phase B/C relative to phase A

0.0 to 360.0°

Resolution:

0.1° < 819.1 Hz

0.5° > 819.1 Hz

Accuracy:

< 1° [45 Hz - 1000 Hz]
< 1° + 1°/kHz [> 1000 Hz]

1

Programming resolution reduced if –LKM/-LKS option is installed. See paragraphs 2.6.5 and 2.7.5.

2

Programming resolution of 0.5 Hz above 819.1 Hz may be used over the remote control bus with ± 0.5 Hz

accuracy.

15

User Manual Lx / Ls Series

Current

(RMS)

Voltage (RMS)

7578

100%

60%

80%

40%

20%

150

150 V Range

Full

Power

12.8 A

15

Note: All output specifications apply below the Current / Voltage rating line shown in the

V/I rating charts of section 2.1.2.1 for Lx Series and section 2.1.2.2 for Ls Series.

Data is shown for 3-phase mode, low voltage range. For 1-phase mode, multiply

current by 3. For high voltage range, divide current by 2 and multiply voltage by 2.

2.1.2.1 Voltage versus Current Rating Charts - Lx Series

Figure 2-1: 3000Lx Voltage / Current Rating Chart for 150V AC Range in 3 phase mode.

16

User Manual Lx / Ls Series

Current

(RMS)

Voltage (RMS)

75 117

100%

60%

80%

40%

20%

150

150 V Range

Full

Power

12.8 A

15

Current

(RMS)

Voltage (RMS)

75 117

100%

60%

80%

40%

20%

150

150 V Range

12.8 A

15

Figure 2-2: 4500Lx Voltage / Current Rating Chart for 150V AC Range in 3 phase mode.

Figure 2-3: 6000Lx Voltage / Current Rating Chart for 150V AC Range in 3 phase mode.

17

User Manual Lx / Ls Series

Current

(RMS)

Voltage (RMS)

67.5

100%

60%

80%

40%

20%

135

135 V Range

Full

Power

14.8 A

13.5

Current

(RMS)

Voltage (RMS)

67.5

100%

60%

80%

40%

20%

135

135 V Range

Full

Power

14.8 A

13.5 100

2.1.2.2 Voltage versus Current Rating Charts - Ls Series

Figure 2-4: 3000Ls Voltage / Current Rating Chart for 135V AC Range in 3 phase mode.

Figure 2-5: 4500Ls Voltage / Current Rating Chart for 135V AC Range in 3 phase mode.

18

User Manual Lx / Ls Series

Current

(RMS)

Voltage (RMS)

67.5

100%

60%

80%

40%

20%

135

135 V Range

14.8 A

13.5

Figure 2-6: 6000Ls Voltage / Current Rating Chart for 135V AC Range in 3 phase mode.

19

User Manual Lx / Ls Series

Parameter

Range

Accuracy ( )

Resolution

1 Phase Mode

3 Phase Mode

Frequency1

45.00-1000.0 Hz

0.1% ± 1 digit

0.01 Hz to 81.91 Hz

0.1 Hz to 819.1 Hz
1 Hz > 819.1 Hz

Phase

45.00 - 100.0 Hz

100.0 - 1000 Hz

0.5°
2°

0. 1°
RMS Voltage

0 - 400 Volts

0.05% + 0.25V

0.01 Volt

RMS Current

0 - 50 Amps

0.1% + 0.15A

0.1% + 0.05A

0.001 Amp

Peak Current

0 - 150 Amps

0.2% + 0. 5A

0.1% + 0.15A

0.001 Amp

Crest Factor

1.00 – 10.00

1.5 %

1.5 %

0.01

VA Power

0 - 6 KVA

0.15% + 9 VA

0.15% + 3 VA

1 VA

Real Power

0 - 6 KW

0.15% + 9 W

0.15% + 3 W

1 W

Power Factor

0.00 - 1.00

0.03

0.01

0.01

Note: Accuracy specifications are valid above 100 counts. For multi-chassis configurations, Current
and Power range and accuracy specifications are times the number of chassis.

Note: Frequency measurement specification valid for output > 20 Vrms.
Note: Crest Factor accuracy applies for Irms > 50% of max.
Note: Power Factor accuracy applies for PF > 0.5 and VA > 50% of max.

Parameter

Range

Accuracy ( )

Resolution

Frequency fundamental

45.00 - 81.91 Hz

82.0 - 819.1 Hz
> 819.1 Hz

0.1% ± 1 digit

0.01 Hz

0.1 Hz
1 Hz

Frequency harmonics

45.00 Hz – 16 kHz

0.1% + 2 digits

0.1 Hz

Voltage

Fundamental

0 - 400 Volts

0.05% + 0.25V

0.01V

Harmonic 2 - 50

0.1% + 0.1%/kHz + 0.25

0.01V

Current

Fundamental

0 - 20 Amps

0.1% + 0.05A

0.01A

Harmonic 2 - 50

0.1% + 0.1%/kHz + 0.05A

0.01A

Note: Current range and accuracy specifications are times three in single-phase mode. For multi­chassis configurations, current accuracy specifications are times the number of chassis.

2.1.3 AC Measurements

Measurement specifications apply to single chassis Lx / Ls Series AC source in single or three­phase mode. See notes for other models and configurations.

2.1.4 Harmonic Measurements

Harmonic measurement specifications apply to Lx Series or Ls Series –3 with –ADV option AC
sources in three-phase mode. See notes for single-phase mode or Ls –1 with –ADV option.

1

Frequency measurement specifications valid with output voltage of 30Vrms or higher. If output relay is open,

frequency measurement will return 0.0 Hz.

20

User Manual Lx / Ls Series

Parameter

Specification

Trigger Input:

External trigger source input. Requires TTL level input signal. Triggers
on negative edge. Response time 80 - 100 s.

Non volatile memory
storage:

16 complete instrument setups and transient lists, 100 events per list.
50 User defined waveforms.

Waveforms

Lx Series: Sine, square, clipped, user defined
Ls Series standard: Sine, square, clipped
Ls Series w –ADV option: Sine, square, clipped, user defined

Transients

Voltage: drop, step, sag, surge, sweep
Frequency: step, sag, surge, sweep
Voltage and Frequency: step, sweep

IEEE-488 Interface:
(Requires –GPIB option
on Ls Series)

AH1, DC1, DT1, L3, RL2, SH1, SR1, T6
IEEE 488.2 and SCPI
Response time is 10 ms (typical)

RS232C Interface:

Baud rates, 9600, 19200, 38400, 57600 and 115200
Data bits: 8
Start bits: 1
Stop bits: 1
Parity: None
SCPI
Response time is 10 ms (typical @ 115200 baud)

Current Limit Modes:

Two selectable modes of operation:

1. Constant current mode (voltage folds back with automatic recovery)

2. Constant voltage mode with trip-off (Relays open).

Parameter

Specification

Input Over current:

Input Circuit breaker. This breaker protects the equipment only and is
not a branch protection device. AC input connection should be make
using a suitable branch protection device per local electrical code.

Input Over voltage
Transients:

Surge protection to withstand EN50082-1 (IEC 801-4, 5) levels.

Output Over current:

Adjustable level constant current mode with programmable set point.

Output Short Circuit:

Peak and RMS current limit.

Over temperature:

Automatic shutdown.

2.1.5 System Specification

2.1.6 Unit Protection

21

User Manual Lx / Ls Series

Parameter

Specification

Dimensions:

Height:: 10.5 inches (26.7 cm) 3000Lx, 4500Lx. 6000Lx
21 inches (53.4 cm) 9000Lx/2, 12000Lx/2

31.5 inches (80.1 cm) 13500Lx, 18000Lx/3
Depth: 23 inches (58.4 cm)
Width: 19 inches (48.3 cm)

All dimensions are per chassis. For /2 or /3 model configurations,
multiply height by 2 or 3 for total height. Width includes integrated front
panel rack mount ears.

Equipment Rack depth
requirement

25 inches (63.5 cm)

Unit Weight:
Per chassis

Net: 193 lbs / 87.7 Kg approximately
Shipping: 280 lbs / 127.3 Kg approximately

All weights are per chassis. For /2 or /3 model configurations, each
chassis is packaged individually.

Material:

Steel chassis with aluminum top cover

Finish:

Anodized external surfaces.
Front panel color medium gray.

Cooling:

Fan cooled with air intake on the sides and exhaust to the rear.
Variable speed fan control.

Acoustic Noise
(Supplemental
specification)

Measured at 1 m distance:
Fan speed: Low power mode Full power mode
Front of unit: 47 dBA 50 dBA
Rear of unit: 62 dBA 67 dBA

Internal Construction:

Modular sub assemblies.

Rear Panel
Connections:

(See section 3 for description of connections)

AC input wiring
AC output wiring
External sense terminal block (Remote voltage sense)
System interface (2x)
GPIB and RS232C
Trigger In and Out SMA's (Master Lx chassis only)

Parameter

Specification

Operating Temp:

0° to +35 C, full power, 0° to +50 C, reduced power
+32° to +95° F, full power, +32° to +122 F, reduced power.

Storage Temp:

-40° to +85 C.

-40° to +185° F.

Altitude:

< 2000 meters
< 6000 feet

2.2 Mechanical

2.3 Environmental

22

User Manual Lx / Ls Series

Parameter

Specification

Relative Humidity:

0-95 % RAH, non-condensing maximum for temperatures up to 31 C
decreasing linearly to 50% at 40 C.

Indoor Use Only

Vibration:

Designed to meet NSTA project 1A transportation levels.

Shock:

Designed to meet NSTA project 1A transportation levels.

Controls:

Shuttle knobs:

Voltage and Frequency shuttle knobs may be used to adjust voltage and
frequency for selected phase or all three phases while in the SET menu.
In all other menu's, the shuttles may be used to change parameter
values and settings.

Up/down arrow keys:

A set of up and down arrow keys is used to move the cursor position in
all menus. This allows quick selection of the desired function or
parameter.

Function keys:

Set key will show output voltage and frequency setting.
Meas key displays the measurement screens. Measure key will display

measurement values for selected phase or phase A if all three phases
are selected.

Menu key selects main menu.
Enter key is used to confirm selections.
Back key is used to back up to previous screen.
Output on/off key for output relay control.
Phase key toggles between phase A, B, C or all phases selection.

Displays:

LCD graphics display:

Large high contrast backlit LCD display. An adjustable viewing angle
makes it easy to read from all practical locations.

Status indicators:

Large and bright status indicators inform the user of important power
source conditions.

The Remote lamp informs the user that the unit is under remote control.
The Overload lamp indicates that excessive current is being drawn at

the output.
The Over temperature lamp illuminates when internal heat sink

temperatures are too high.
The Hi Range indicator is lit any time the unit is switched to the high

voltage range.
The Output On/Off indicator is on when the power source output relays

are closed.
The Phase A, B and C indicators are lit when the relevant phase is

selected with the Phase key.

Controller Features

2.4 Front Panel Controls

2.5 Special Features

23

User Manual Lx / Ls Series

Mode:

Switches between 1 and 3 phase outputs.

Parallel Operation:

9000Lx/2 and 13500Lx/2 systems use two or three 4500Lx chassis in
parallel operation. The two or three chassis must be connected using the
system interface cable supplied with the system.
12000Lx/3 and 18000Lx/3 systems use two or three 6000Lx chassis in
parallel operation. The two or three chassis must be connected using the
system interface cable supplied with the system

Controller:

Programmable controller front panel assembly.

Output Relay:

Standard output relay feature to isolate power source from the load.

Output On/Off:

The output relay can be used to quickly disconnect the load. A yellow
status indicator displays the status of the output relay.

External Trigger Output
or Function Strobe

An external TTL output is available which may be used to trigger other
equipment. The TTL output can be controlled by the transient
programming system. This requires the trigger mode to be set to EXT
(factory default). This can only be done over the bus using the
OUTP:TTLT:MODE TRIG command. This mode is compatible with the
Agilent HP6834B.

It can also be configured to generate an output pulse any time the
voltage, frequency, current limit or phase programming is updated. This
requires the trigger mode to be set to FSTR. This can only be done over
the bus using the OUTP:TTLT:MODE FSTR command. This mode is
compatible with the CI L Series.

The Trigger Output (Trig Out1) / function strobe is an active low1 TTL
signal with a duration of no less than 400 usec.

Clock and Lock Mode

Enables two or more independent Ls/Lx power systems to be phase
synchronized to each other. One system (-LKM) acts as the master, the
other(s) (-LKS) as auxiliaries. The –LKS units are synced to the –LKM
unit. Refer to section 3.9 for details on Clock and Lock mode.

Trigger Input

A TTL input signal may be used as an external trigger source for output
changes programmed on the AC power source transient system. This
requires the trigger source to be set to EXT. This can only be done over
the bus.

Output Options

-AX

Auxiliary outputs, 5 VAC and 26 VAC, 400 Hz. (Output D and E)

- HV

135 / 270 V range output

- EHV

200 / 400 V range output

-HF

High frequency option. Increases output frequency to 5000 Hz (single
chassis configurations) or 2000 Hz (multi-chassis models).

-LF

Low frequency option. Limits maximum output frequency to 500 Hz.

Firmware Options

- 704

Mil Std 704 test firmware.
Includes AC tests for Revisions D and E

- 704F

Mil Std 704 test firmware.
Includes AC tests for Revisions A through F

2.6 Available Options – Lx Series

1 Note: Early production models may have an active high Trig Out1 polarity.

24

User Manual Lx / Ls Series

- 160

RTCA/DO-160D test firmware.
Includes RCTA-DO160D, section 16, Change #2 and EURO/CAE-14D
AC tests only.

Misc. Options

-L22

Locking Knobs. Shaft lock screws replace knobs to prevent turning of
Voltage and Frequency shuttles.

-LKM

Clock and Lock Master. Enables synchronizing outputs of two Lx AC
sources, one acting as master.
This mode supports a frequency range of 45 to 819 Hz on standard
Lx/Ls models. See section 3.9.

-LKS

Clock and Lock Auxiliary. See -LKM for details. (see Notes) See section

3.9.

-LNS

Line Sync (see Notes)

-EXS

External Sync (see Notes)

-RMS

Set of 2 Rack mount slides. (Left and Right) Recommended to mount Lx
Chassis in 19 inch instrument cabinet.

Notes:

External Trigger input is standard.
Line sync and External sync are mutually exclusive.
External Trigger input and External sync are mutually exclusive.
Units with -LKS (auxiliary) cannot have Line Sync or External Sync.

Voltage:

Ranges (L-N):

Low range

0 - 135 Vrms

High range

0 - 270 Vrms

Maximum Current at Full Power

Note: Current, maximum amps per phase available at on low voltage range. 3000Lx and 4500Lx

operate in constant power mode up to currents shown at reduced voltage. See Figure 2-1.
For 9000Lx/2 and 12000Lx/2, currents are 2 x 4500Lx and 6000Lx.
For 13500Lx/3 and 18000Lx/3, currents are 3 x 4500Lx and 6000Lx

Model

3000Lx-HV

4500Lx-HV

6000Lx-HV

Single Phase Mode:
Max. RMS, low Vrange

44.4 A

44.4 A

44.4 A

Three Phase Mode:
Max. RMS, low Vrange
per phase

14.8 A

14.8 A

14.8 A

Note: Current derates linearly from 50% of voltage range to 20% of specified current at 10% of

voltage range.
Current in High voltage range is reduced by a factor of 2.

Note: For 9000Lx/2-HV and 12000Lx/2-HV, currents are 2 x 4500Lx-HV and 6000Lx-HV.

For 13500Lx/3-HV and 18000Lx/3-HV, currents are 3 x 4500Lx-HV and 6000Lx-HV

Maximum Current at Full Scale Voltage

2.6.1 -HV Option Lx Series - Supplemental Specifications

Specifications for Lx units with -HV voltage range option installed are same as standard Lx unit
except where noted below.

25

User Manual Lx / Ls Series

Model

3000Lx-HV

4500Lx-HV

6000Lx-HV

Single Phase Mode:
Max. RMS, low Vrange

22.2 A

33.3 A

44.4 A

Three Phase Mode:
Max. RMS, low Vrange
per phase

7.4 A

11.1 A

14.8 A

Voltage:

Ranges (L-N):

Low range

0 - 200 Vrms

High range

0 - 400 Vrms

Maximum Current at Full Power

Note: Current, maximum amps per phase available at on low voltage range. 3000Lx and 4500Lx

operate in constant power mode up to currents shown at reduced voltage. See Figure 2-1.
For 9000Lx/2 and 12000Lx/2, currents are 2 x 4500Lx and 6000Lx.
For 13500Lx/3 and 18000Lx/3, currents are 3 x 4500Lx and 6000Lx

Model

3000Lx-EHV

4500Lx-EHV

6000Lx-EHV

Single Phase Mode:
Max. RMS, low Vrange

30.0 A

30.0 A

30.0 A

Three Phase Mode:
Max. RMS, low Vrange
per phase

10.0 A

10.0 A

10.0 A

Note: Current derates linearly from 50% of voltage range to 20% of specified current at 10% of

voltage range.
Current in High voltage range is reduced by a factor of 2.

Note: For 9000Lx/2-EHV and 12000Lx/2-EHV, currents are 2 x 4500Lx-EHV and 6000Lx-EHV.

For 13500Lx/3-EHV and 18000Lx/3-EHV, currents are 3 x 4500Lx-EHV and 6000Lx-EHV

Maximum Current at Full Scale Voltage

Model

3000Lx-EHV

4500Lx-EHV

6000Lx-EHV

Single Phase Mode:
Max. RMS, low Vrange

15.0 A

22.5 A

30.0 A

Three Phase Mode:
Max. RMS, low Vrange
per phase

5.0 A

7.5 A

10.0 A

2.6.2 -EHV Option Lx Series - Supplemental Specifications

Specifications for Lx units with -EHV voltage range option installed are same as standard Lx unit
except where noted below.

26