Ametek Sequoia series User manual

P/N M447352-01

Revision A

April 2023

AMETEK Programmable Power

SEQUOIA / TAHOE Series

AC/DC Power Source

User Manual

Sequoia / Tahoe Series User Manual California Instruments

iv M447352-01 REV-A

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 VTI, Elgar, Sorensen, California Instruments, and Amrel brand power and instrumentation

products.

AMETEK, Inc. is a leading global manufacturer of electronic instruments and electromechanical devices

with annualized sales of $5 billion. The Company has over 18,000 colleagues working at nearly 150

manufacturing facilities and nearly 150 sales and service centers in the United States and 30 other

countries around the world.

Trademarks

AMETEK is a registered trademark of AMETEK, Inc. California Instruments is a trademark owned by

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

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

ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE

TRANSLATION, THE ACCURACY CANNOT BE GUARANTEED. APPROVED AMETEK CONTENT

IS WITHIN THE ENGLISH LANGUAGE VERSION, WHICH IS POSTED AT

WWW.PROGRAMMABLEPOWER.COM.

Part Number

M447352-01

Revision and Date

Revision A, April 2023

Contact Information

Telephone: 800 733 5427

(

toll free in North America

)

858 450 0085

(

direct

)

Fax: 858 458 0267

Email: sales.ppd

ametek.com

service.ppd

ametek.com

Web: www.programmablepower.com

Sequoia / Tahoe Series User Manual California Instruments

M447352-01 REV-A v

Important Safety Instructions

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

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 at a high voltage relative to chassis ground.

WARNING!

The equipment used contains ESD sensitive parts. When installing equipment,

follow ESD Safety Procedures. Electrostatic discharges might cause damage to the

equipment.

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

installation and servicing.

Ensure that the AC input power line ground is connected properly to the unit safety ground chassis.

Similarly, other AC power ground lines, including those to application and maintenance equipment, must

be grounded properly for both personnel safety and equipment protection.

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 prevented.

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

and protective clothing during open cover checks to avoid personal injury by any sudden component

failure.

AMETEK Programmable Power Inc., San Diego, California, USA, or any of the subsidiary sales

organizations, cannot accept any responsibility for personnel, material or inconsequential injury, loss or

damage that results from improper use of the equipment and accessories.

Safety Symbols

Sequoia / Tahoe Series User Manual California Instruments

vi M447352-01 REV-A

Product: Sequoia/Tahoe Series Power Source

Warranty Period: 2 Years

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 as follows:

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

or required by AMETEK;

damaged by modifications, alterations or attachments thereto which are not authorized

by AMETEK;

installed or operated contrary to the instructions of AMETEK;

opened, modified, or disassembled in any way without AMETEK’s consent;

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

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 Customer Service Department prior to the return of

the product to AMETEK for repair:

Telephone: 800-733-5427, 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 on our website,

www.programmablepower.com, by tapping Support button or going to the Service

Centres tab.

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 the specification is subject to an

evaluation fee and applicable freight charges.

Sequoia / Tahoe Series User Manual California Instruments

M447352-01 REV-A vii

Table of Contents



1.Introduction .................................................................................................................................. 1

1.1General Description ...............................................................................................................................2

1.2Key Benefits ..........................................................................................................................................2

1.2.1Simple Operation.......................................................................................................................2

1.2.2Configurations ...........................................................................................................................2

1.2.3Choice of Voltage Range ..........................................................................................................2

1.2.4High Crest Factor ......................................................................................................................3

1.2.5Remote Control .........................................................................................................................3

1.2.6Hardware in the Loop ................................................................................................................3

1.3Testing Applications...............................................................................................................................3 

1.3.1Power Conditioning Equipment Testing ....................................................................................3

1.3.2Grid Interactive Green Energy and Distributed Power Generation (only for Sequoia Series)....3

1.3.3Avionics and Shipboard Electronics Testing .............................................................................3

1.3.4Regulatory Compliance Testing ................................................................................................4

1.3.5Electric Vehicle (EVSE, V2G) Testing (only for Sequoia Series)...............................................4

1.3.6Manufacturing Line Testers.......................................................................................................4

1.4SEQUOIA Series Models.......................................................................................................................5

1.5TAHOE Series Models...........................................................................................................................6

2.Specifications............................................................................................................................... 7

2.1Operating modes ...................................................................................................................................7

2.2Output Electrical Characteristics – All operating modes ........................................................................8

2.3Output Electrical Characteristics- Source mode ....................................................................................9

2.4Output Electrical Characteristics- AC/DC SINK -Grid simulator mode.................................................10

2.5Output Electrical Characteristics- AC/DC SINK -Electronic load mode................................................11

2.6Output Power and current ratings – Three Phase ...............................................................................12

2.7Output Power and current ratings – Single Phase...............................................................................13

2.8Output Current Limit Characteristics - Continuous...............................................................................13

2.9Output current limit characteristics – Constant Power Mode ...............................................................14

2.10SINK- Electronic Load mode – RLC programming ranges- 3 Phase ...................................................15

2.11SINK- Electronic Load mode – RLC programming ranges- Single phase............................................16

2.12AC Input Specifications........................................................................................................................18

2.13AC Output Measurements ...................................................................................................................20

2.14Harmonics Measurements...................................................................................................................21

2.15DC Output Measurements ...................................................................................................................21

2.16Operational Characteristics .................................................................................................................22

2.17Additional AC only Output Range Hardware options ...........................................................................24

Sequoia / Tahoe Series User Manual California Instruments

viii M447352-01 REV-A

2.18Additional Hardware options ............................................................................................................... 24

2.19SINK option ......................................................................................................................................... 24

2.20Frequency Options.............................................................................................................................. 25

2.21Clock and Lock Mode Option .............................................................................................................. 25

2.22Analog/Digital Signal Characteristics .................................................................................................. 25

2.23Remote Control Digital Interface Characteristics................................................................................. 27

2.24Front Panel Controls/Indicators........................................................................................................... 27

2.25Rear Panel Connectors ....................................................................................................................... 28

2.26Protection Function Characteristics..................................................................................................... 29

2.27Environmental Specifications .............................................................................................................. 29

2.28Regulatory Agency Compliance .......................................................................................................... 30

2.29Mechanical Specifications ................................................................................................................... 30

2.30Firmware/Software Options................................................................................................................. 31

2.31XVC - 444 Option Specifications ......................................................................................................... 31

2.32XVC - 555 Option Specifications ......................................................................................................... 32

2.33XVC - 666 Option Specifications ......................................................................................................... 34

2.34XVC - 721 Option Specifications ......................................................................................................... 35

2.35-HF Option Specifications.................................................................................................................... 36

3.Unpacking and Installation ....................................................................................................... 38

3.1Unpacking ........................................................................................................................................... 38

3.1.1Contents of Shipment ............................................................................................................. 38

3.2Power Requirements........................................................................................................................... 38

3.3Mechanical Installation........................................................................................................................ 40

3.4Outline Drawings................................................................................................................................. 40

3.4.1Rear Panel Protective Covers................................................................................................. 40

3.4.2Overall Dimensions for Installation ......................................................................................... 41

3.5AC Input Connections and Wiring ....................................................................................................... 42

3.5.1AC Input Overcurrent Protection............................................................................................. 42

3.6AC On/Off Push Button ....................................................................................................................... 47

3.7Output Connections ............................................................................................................................ 48

3.7.1Output Wiring.......................................................................................................................... 48

3.7.2Output Terminal Blocks........................................................................................................... 51

3.7.3Single Phase mode Output Wiring Diagram ........................................................................... 54

3.7.4Three Phase mode Output Wiring Diagram ............................................................................ 55

3.8Connectors - Rear Panel..................................................................................................................... 56

3.8.1System Interface..................................................................................................................... 56

3.8.2BNC Connectors..................................................................................................................... 57

3.8.3External I/O Control Signal Connector.................................................................................... 58

3.8.4External Analog Control Signal Connector.............................................................................. 60

Sequoia / Tahoe Series User Manual California Instruments

M447352-01 REV-A ix

3.8.5System Relay ..........................................................................................................................62

3.8.6Multiple Chassis System Configurations .................................................................................63

3.8.7External Sense Connector ......................................................................................................68

3.8.8RS-232C Serial Interface ........................................................................................................68

3.8.9USB interface ..........................................................................................................................68

3.8.10LAN interface ........................................................................................................................69

3.8.11GPIB interface (Optional) ......................................................................................................70

3.9Clock and Lock Connectors (Optional) ................................................................................................71

3.10Basic Initial Functional Test .................................................................................................................72

4.Operation .................................................................................................................................... 74

4.1Operating Modes .................................................................................................................................74

4.1.1Source Mode...........................................................................................................................74

4.1.2Grid Simulator Mode ...............................................................................................................76

4.1.3eLoad Mode ............................................................................................................................79

4.2External I/O Control Signal Connector.................................................................................................86

4.2.1External Synchronization.........................................................................................................87

4.2.2Remote Inhibit .........................................................................................................................87

4.2.3Trigger IN Function..................................................................................................................88

4.2.4Summary Fault Signal .............................................................................................................89

4.2.5Output On/Off Status...............................................................................................................89

4.2.6External Analog Modulation of Output Voltage (Source and Grid-Simulator MODE) ..............90

4.3External Analog Control Signal Connector ..........................................................................................91

4.3.1External Analog Programming of Output Voltage Waveform (Source and Grid-Simulator MODE)

92

4.3.2External Analog Programming of Output Voltage Amplitude (Source and Grid-Simulator MODE)

94

4.3.3External Analog Programming of Output Current Amplitude (eLoad – Current programming Mode)

95

4.3.4Output Voltage Monitor (VMON) .............................................................................................96

4.3.5Output Current Monitor (IMON)...............................................................................................97

5.Front Panel Operation ............................................................................................................... 99

5.1Front Panel Controls and Indicators ....................................................................................................99

5.2Front Panel Display Navigation .........................................................................................................100

5.3Selecting Output Characteristics and Adjusting Parameters .............................................................100

5.4Front Panel Touch-Screen Display ....................................................................................................102

5.4.1Touch-Screen Numeric Keypad ............................................................................................104

5.4.2Rotary Encoder .....................................................................................................................105

5.5Front Panel Display Top-Level Menu.................................................................................................107

5.6Operating Mode Screen.....................................................................................................................108

5.6.1Banner Screen ......................................................................................................................111

Sequoia / Tahoe Series User Manual California Instruments

x M447352-01 REV-A

5.6.2HOME Screen....................................................................................................................... 111

5.6.3Dashboard Screen Top-Level Menu ..................................................................................... 112

5.6.4Real-Time Parameter Adjustment......................................................................................... 114

5.6.5Output Program Screen ........................................................................................................ 114

5.6.6Transients Screen................................................................................................................. 117

5.6.7Configuration Screen ............................................................................................................ 135

5.7HOME Screen Top-Level Menu - (Grid Simulator Mode) .................................................................. 151

5.7.1Banner Screen...................................................................................................................... 151

5.7.2HOME Screen....................................................................................................................... 151

5.7.3Dashboard Screen Top-Level Menu ..................................................................................... 152

5.7.4Real-Time Parameter Adjustment......................................................................................... 153

5.7.5Output Program Screen ........................................................................................................ 153

5.7.6Transients Screen................................................................................................................. 156

5.7.7Configuration Screen ............................................................................................................ 156

5.8HOME Screen Top-Level Menu - (eLoad Current Programming Mode) ........................................... 172

5.8.1Banner Screen...................................................................................................................... 172

5.8.2HOME Screen....................................................................................................................... 172

5.8.3Dashboard Screen Top-Level Menu ..................................................................................... 173

5.8.4Real-Time Parameter Adjustment......................................................................................... 174

5.8.5Output Program Screen ........................................................................................................ 174

5.8.6Current Transients Screen.................................................................................................... 176

5.8.7Configuration Screen ............................................................................................................ 183

5.9HOME Screen Top-Level Menu - (eLoad Power Programming Mode) ............................................. 194

5.9.1Banner Screen...................................................................................................................... 194

5.9.2HOME Screen....................................................................................................................... 194

5.9.3Dashboard Screen Top-Level Menu ..................................................................................... 194

5.9.4Real-Time Parameter Adjustment......................................................................................... 196

5.9.5Output Program Screen ........................................................................................................ 196

5.9.6Configuration Screen ............................................................................................................ 198

5.10HOME Screen Top-Level Menu - (eLoad RLC Programming Mode) ................................................ 207

5.10.1Banner Screen.................................................................................................................... 207

5.10.2HOME Screen..................................................................................................................... 207

5.10.3Dashboard Screen Top-Level Menu ................................................................................... 208

5.10.4Output Program Screen ...................................................................................................... 211

5.10.5Configuration Screen .......................................................................................................... 212

5.11Measurements Screen ...................................................................................................................... 221

5.12Control Interface Screen ................................................................................................................... 230

5.13System Settings Screen .................................................................................................................... 237

5.14Warning/Fault Screen........................................................................................................................ 242

Sequoia / Tahoe Series User Manual California Instruments

M447352-01 REV-A xi

6.Waveform Management........................................................................................................... 244

6.1Standard Waveforms .........................................................................................................................244

6.2Creating Custom Waveforms.............................................................................................................244

6.2.1Viewing Custom Waveforms on the Display..........................................................................244

6.3RMS Amplitude Restrictions ..............................................................................................................245

6.4Frequency Response Restrictions .....................................................................................................245

6.5Transient List Waveforms ..................................................................................................................246

7.Standard Measurements ......................................................................................................... 247

7.1Parameter Measurements .................................................................................................................247

7.1.1Accuracy Considerations.......................................................................................................248

7.2Advanced Measurements ..................................................................................................................248

7.2.1Harmonic Analysis.................................................................................................................248

7.2.2Acquiring FFT data................................................................................................................248

7.2.3Analyzing FFT Data...............................................................................................................249

7.3Triggering Measurements..................................................................................................................250

7.3.1Trigger Mode.........................................................................................................................250

7.3.2Trigger source .......................................................................................................................250

7.3.3Trigger delay .........................................................................................................................251

8.Transient Programming .......................................................................................................... 253

8.1Voltage Transient Programming ........................................................................................................253

8.1.1Using Transient Modes .........................................................................................................253

8.1.2Programming Slew Rates......................................................................................................259

8.1.3Switching Waveforms in Transient Lists................................................................................260

8.1.4Saving Transient List Programs ............................................................................................261

8.2Current Transient Programming ........................................................................................................261

8.2.1Using Transient Modes .........................................................................................................261

8.2.2Programming Slew Rates......................................................................................................268

8.2.3Switching Waveforms in Transient Lists................................................................................268

8.2.4Saving Transient List Programs ............................................................................................269

9.Calibration ................................................................................................................................ 270

9.1Calibration Equipment .......................................................................................................................270

9.2Source Mode Calibration Procedures ................................................................................................270

9.2.1Preparation for Calibration ....................................................................................................270

9.2.2Output Voltage DC Zero Alignment, AC-Mode......................................................................271

9.2.3Output Voltage AC Zero Alignment, AC-Mode ......................................................................271

9.2.4Output Voltage DC Zero Alignment, DC-Mode......................................................................272

9.2.5Output Voltage Gain Initial Alignment, AC-Mode and DC-Mode ...........................................272

9.2.6Output Voltage Measurement AC Gain Alignment, AC-Mode ...............................................274

9.2.7Output Voltage Measurement DC-Positive Gain Alignment, DC-Mode.................................274

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