Keysight N6705 User Manual

User’s Guide

Keysight N6705
DC Power Analyzer

Keysight N6705 User’s Guide

Legal Notices

© Keysight Technologies 2007 - 2015

No part of this document may be
photocopied, reproduced, or translated to
another language without the prior
agreement and written consent of Keysight
Technologies as governed by United States
and international copyright laws.

Warranty

The material contained in this document is
provided “as is,” and is subject to being
changed, without notice, in future editions.
Further, to the maximum extent permitted
by applicable law, Keysight disclaims all
warranties, either express or implied, with
regard to this manual and any information
contained herein, including but not limited
to the implied warranties of merchantability
and fitness for a particular purpose.
Keysight shall not be liable for errors or for
incidental or consequential damages in
connection with the furnishing, use, or
performance of this document or of any
information contained herein. Should
Keysight and the user have a separate
written agreement with warranty terms
covering the material in this document that
conflict with these terms, the warranty
terms in the separate agreement shall
control.

Manual Editions

Manual Part Number: N6705-90001
Edition 11, January 2015
Printed in Malaysia.

Reprints of this manual containing minor
corrections and updates may have the
same printing date. Revised editions are
identified by a new printing date.

Declaration of Conformity

Declarations of Conformity for this product
and for other Keysight products may be
downloaded from the Web. Go to

http://regulations.products.keysight.com

and click on “Declarations of Conformity.”
You can then search by product number to
find the latest Declaration of Conformity.

Waste Electrical and
Electronic Equipment (WEEE)
Directive 2002/96/EC

This product complies with the WEEE
Directive 2002/96/EC marketing
requirement. The affixed product label (see
below) indicates that you must not discard
this electrical/electronic product in
domestic household waste.

Product Category: With reference to the
equipment types in the WEEE directive
Annex 1, this product is classified as
“Monitoring and Control instrumentation”
product.

Do not dispose in domestic household
waste.

To return unwanted products, contact our
local Keysight office, or see

http://www.keysight.com/environment/pro
duct for more information.

Certification

Keysight Technologies certifies that this
product met its published specifications at
time of shipment from the factory. Keysight
Technologies further certifies that its
calibration measurements are traceable to
the United States National Institute of
Standards and Technology, to the extent
allowed by the Institute's calibration
facility, and to the calibration facilities of
other International Standards Organization
members.

Exclusive Remedies

THE REMEDIES PROVIDED HEREIN ARE
THE CUSTOMER'S SOLE AND EXCLUSIVE
REMEDIES. KEYSIGHT TECHNOLOGIES
SHALL NOT BE LIABLE FOR ANY DIRECT,
INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, WHETHER
BASED ON CONTRACT, TORT, OR ANY
OTHER LEGAL THEORY.

Assistance

This product comes with the standard
product warranty. Warranty options,
extended support contacts, product
maintenance agreements and customer
assistance agreements are also available.
Contact your nearest Keysight
Technologies Sales and Service office for
further information on Keysight
Technologies' full line of Support Programs.

Technologies Licenses

The hardware and or software described in
this document are furnished under a
license and may be used or copied only in
accordance with the terms of such license.

U.S. Government Restricted Rights

Software and technical data rights granted
to the federal government include only
those rights customarily provided to end
user customers. Keysight provides this
customary commercial license in Software
and technical data pursuant to FAR 12.211
(Technical Data) and 12.212 (Computer
Software) and, for the Department of
Defense, DFARS 252.227-7015 (Technical
Data – Commercial Items) and DFARS

227.7202-3 (Rights in Commercial
Computer Software or Computer Software
Documentation).

Trademarks

Microsoft and Windows are U.S. registered
trademarks of Microsoft Corporation.

2

Keysight N6705 User’s Guide

3

nently installed equipment

nently installed equipment.

AC mains when switch is off

switch

switch

CAUTION

Denotes a hazard. It calls attention to an
operating procedure, practice, or the like that,
if not correctly performed or adhered to, could
result in damage to the product or loss of
important data. Do not proceed beyond a

CAUTION

are fully understood and met.

WARNING

Denotes a hazard. It calls attention to an
operating procedure, practice, or the like that,
if not correctly performed or adhered to,
could result in personal injury or death. Do
not proceed beyond a WARNING notice until
the indicated conditions are fully understood
and met.

Safety Notices

The following general safety precautions
must be observed during all phases of
operation of this instrument. Failure to
comply with these precautions or with
specific warnings or instructions elsewhere
in this manual violates safety standards of
design, manufacture, and intended use of
the instrument. Keysight Technologies
assumes no liability for the customer's
failure to comply with these requirements.

General

Do not use this product in any manner not
specified by the manufacturer. The
protective features of this product may be
impaired if it is used in a manner not
specified in the operation instructions.

Before Applying Power

Verify that all safety precautions are taken.
Make all connections to the unit before
applying power. Note the instrument's
external markings described under "Safety
Symbols"

Ground the Instrument

This product is a Safety Class 1 instrument
(provided with a protective earth terminal).
To minimize shock hazard, the instrument
chassis and cover must be connected to an
electrical ground. The instrument must be
connected to the AC power mains through
a grounded power cable, with the ground
wire firmly connected to an electrical
ground (safety ground) at the power outlet.
Any interruption of the protective
(grounding) conductor or disconnection of
the protective earth terminal will cause a
potential shock hazard that could result in
personal injury.

Load Connections

Power supplies can output high currents
and high voltages. Make sure that the load
or device under test can safely handle the
output current and voltage. Also, make sure
that the connection leads can safely
withstand the expected currents and are
insulated for the expected voltages.

Power supply outputs may be connected so
as to float relative to earth ground. Isolation
or floating voltage ratings are indicated on
the instrument, near the output connectors
(see example below).

Do not float the power supply output on the
line-voltage mains. Observe all safety
markings and protection limits.

Fuses

The instrument contains an internal fuse,
which is not customer accessible.

Do Not Operate in an Explosive
Atmosphere

Do not operate the instrument in the
presence of flammable gases or fumes.

Do Not Remove the Instrument
Cover

Only qualified, service-trained personnel
who are aware of the hazards involved
should remove instrument covers. Always
disconnect the power cable and any
external circuits before removing the
instrument cover.

Do Not Modify the Instrument

Do not install substitute parts or perform
any unauthorized modification to the
product. Return the product to a Keysight
Sales and Service Office for service and
repair to ensure that safety features are
maintained.

In Case of Damage

Instruments that appear damaged or
defective should be made inoperative and
secured against unintended operation until
they can be repaired by qualified service
personnel.

Cleaning

Clean the outside of the instrument with a
soft, lint-free, slightly dampened cloth. Do
not use detergent or solvents.

Safety Symbols and Notices

Direct current

Alternating current

Direct and alternating current

3-phase alternating current

Earth (ground) terminal

Protective earth terminal

Frame or chassis terminal

Terminal is at earth potential

Neutral conductor on perma-

Line conductor on perma-

On supply

Off supply

Standby supply - unit is not
completely disconnected from

In position of a bi-stable push

Out position of a bi-stable push

Caution, risk of electric shock

Caution, hot surface

Caution, refer to accompanying
description

notice until the indicated conditions

Keysight N6705 User’s Guide

In this Book

NOTE

Technologies at one of the following telephone

Specific chapters in this manual contain the following information:

 Quick Reference – Chapter 1 is a quick reference section that helps

you quickly become familiar with your DC Power Analyzer.

 Installation – Chapter 2 describes how to install your DC Power

Analyzer. It discusses topics such as how to connect loads to the
output, 4-wire sensing, parallel and series connections.

 Using the Source functions – Chapter 3 describes how to use the

power supply and the arbitrary waveform generator using the front
panel and SCPI commands.

 Using the Measurement functions – Chapter 4 describes how to use

the front panel output meters, scope view, and data logger.

 Using the System functions – Chapter 5 describes file functions and

administrative functions.

 Advanced Source and Measurement Functions – Chapter 6

discusses advanced source functions and measurement functions
such as lists, digitizing measurements, and external data logging.

 Specifications – Appendix A describes the mainframe characteristics.
 SCPI Commands – Appendix B summarizes the SCPI commands.
 Using the Digital Port – Appendix C describes how to configure and

use the digital port on the instrument’s rear panel.

For complete details on the SCPI (Standard Commands for
Programmable Instruments) commands, refer to the N6705
Programmer’s Reference Help file included on the Keysight N6705
Product Reference CD. This CD-ROM is shipped along with your
instrument.

You can contact Keysight
numbers for warranty, service, or technical support information.
In the United States: [phone]
In Europe: 31 20 547 2111
In Japan: 0120-421-345
Or use our Web link for information on contacting Keysight in your
country or specific location:

www.keysight.com/find/assist

Or contact your Keysight Technologies Representative.

4

Keysight N6705 User’s Guide

5

Updates

Firmware and Manual Updates

This manual describes firmware revision D.02.08 and up. Go to

www.keysight.com/find/N6705firmware

any later versions of the firmware. Information on firmware differences
is available on the web site.

Refer to “View Output Ratings” in chapter 2 to view the firmware
version that is currently installed in your mainframe.

Refer to “Updating the Firmware” in chapter 5 for information on how to
update your mainframe with the latest firmware. Note that Keysight
N675xA power modules must have Option LGA to support the latest
firmware versions.

Updated versions of this manual are also posted on the web. Go to

www.keysight.com/find/N6705

to get the latest version of the manual.

if you need to download this or

Keysight N6705B Differences

• Voltage and Current knob push-button functions. Pushing the

front panel voltage and current knobs displays a menu from
which you can: 1. Lock/Unlock the knobs. 2. Select limit
parameters or select limit tracking on Models N678xA.

• Rear panel output ports are provided for Keysight N6753A high

current load leads. See “Keysight N6753A High Current
Connections” in chapter 2 for details.

• Rear panel auxiliary terminals are provided for Keysight

N6781A and N6785A auxiliary measurement inputs. See
“Connecting the Auxiliary Voltage Measurement Input” in
chapter 2 for details.

Keysight N6705 User’s Guide

Contents

1 - Quick Reference ............................................................................................... 11

2 - Installation ....................................................................................................... 25

The Keysight N6705 DC Power Analyzer – At a Glance ............... 12

Source Features ....................................................................... 12

Measurement Features ............................................................ 13

System Features ....................................................................... 13

Power Module Features ........................................................... 14

Keysight N678xA Power Module Features .............................. 15

The Front Panel - At a Glance ....................................................... 16

The Rear Panel – At a Glance ........................................................ 17

Meter View ...................................................................................... 18

Scope View ..................................................................................... 19

Data Logger .................................................................................... 20

Arb Preview ..................................................................................... 21

Front Panel Menu Reference ......................................................... 22

General Information ....................................................................... 26

Models ...................................................................................... 26

Options ..................................................................................... 26

Items Supplied ......................................................................... 26

Inspecting the Unit ......................................................................... 27

Installing the Unit ........................................................................... 28

Safety Considerations .............................................................. 28

Environment ............................................................................. 28

Cleaning ................................................................................... 28

Power Module Location ........................................................... 28

Power Module Installation ....................................................... 29

High Current Output Connections ........................................... 31

Bench Installation .................................................................... 32

Rack Installation ....................................................................... 32

400 Hz Operation ..................................................................... 32

Connecting the Line Cord .............................................................. 33

Connecting the Outputs ................................................................. 33

Wire Size and Length ............................................................... 33

Keysight N678xA SMU Wiring Requirements ......................... 35

Multiple Loads .......................................................................... 37

4-Wire Sense Connections ...................................................... 37

Parallel Connections ................................................................ 40

Series Connections .................................................................. 41

Additional Load Considerations ............................................... 42

Connecting the BNC Connectors .................................................. 44

Installing a Redundant Ground for 400 Hz Operation ............ 44

Connecting the Digital Port ........................................................... 45

Connecting the Auxiliary Voltage Measurement Input ................. 46

6

Keysight N6705 User’s Guide

7

Connecting to the Interfaces ......................................................... 47

3 - Using the Source Functions ............................................................................. 57

4 - Using the Measurement Functions ................................................................. 103

GPIB/USB Interfaces ................................................................ 47

LAN Interface............................................................................ 49

Viewing the Active LAN Status ................................................ 51

Modifying the LAN Settings ..................................................... 51

Communicating Over the LAN ....................................................... 54

Using the Web Server .............................................................. 54

Using Telnet ............................................................................. 55

Using Sockets ........................................................................... 55

Turning the Unit On ........................................................................ 58

View the Error Log ................................................................... 58

View Output Ratings ................................................................ 59

Using the Power Supply ................................................................. 60

Controlling the Outputs ........................................................... 60

Additional Source Settings ...................................................... 62

Keysight N678xA SMU Emulation Settings ............................. 63

Configuring a Turn-On/Turn-Off Sequence ............................ 67

Configuring Advanced Properties ............................................ 70

Configuring Protection Functions ............................................ 72

Configuring Advanced Protection ........................................... 74

Using the Arbitrary Waveform Generator ...................................... 75

Configuring Pulse Arbs ............................................................ 76

Configuring User-Defined Arbs ............................................... 78

Configuring Constant-Dwell Arbs ........................................... 81

Configuring an Arb Sequence .................................................. 84

Arbitrary Waveform Parameters .............................................. 88

Arb Trigger Sources ................................................................. 99

Arb Triggers ............................................................................ 100

Importing/Exporting User-Defined and Constant-Dwell Arb

Data ........................................................................................ 102

Using the Meter Functions ........................................................... 104

Meter View ............................................................................. 104

Meter Ranges ......................................................................... 105

Keysight N678xA SMU Meter-Only Modes ........................... 107

Auxiliary Voltage Measurements ........................................... 109

Using the Scope Functions .......................................................... 110

Making a Measurement ......................................................... 110

Scope View ............................................................................. 113

Scope Properties .................................................................... 117

Scope Ranges ........................................................................ 118

Scope Marker ......................................................................... 119

Scope Horizontal .................................................................... 119

Scope Preset .......................................................................... 119

Keysight N6705 User’s Guide

5 - Using the System Functions ........................................................................... 137

6 - Advanced Source and Measurement Functions ............................................. 153

Using the Data Logger Functions ................................................ 120

Logging Data .......................................................................... 120

Data Logger View ................................................................... 124

Data Logger Properties .......................................................... 128

Data Logger Ranges .............................................................. 129

Data Logger Trigger ............................................................... 130

Data Logger Filename ............................................................ 132

Data Logger Marker ............................................................... 132

Data Logger Preset ................................................................ 133

Data Logger Sampling Modes ............................................... 134

Scope and Data Logger Display Differences ........................ 136

Using the File Functions ............................................................... 138

Save Function ......................................................................... 138

Load Function......................................................................... 139

Export Function ...................................................................... 139

Import Function ...................................................................... 140

Screen Capture ...................................................................... 140

Show Details........................................................................... 141

Delete Function ...................................................................... 141

Rename Function ................................................................... 142

Copy Function ........................................................................ 142

New Folder ............................................................................. 143

Reset/Recall/Power-On State ............................................... 143

Using an External USB Memory Device ................................ 144

Configuring User Preferences ...................................................... 145

Front Panel Preferences......................................................... 145

Front Panel Lockout ............................................................... 146

Clock Setup ............................................................................ 146

Using the Administrative Tools .................................................... 147

Administrator Login/Logout .................................................. 147

Instrument Calibration ........................................................... 147

Securing the USB, LAN, and Web Server ............................. 148

Restoring the Non-volatile Factory Settings ......................... 148

Disk Management .................................................................. 149

Updating the Firmware .......................................................... 149

Installing Options ................................................................... 150

Changing the Password ......................................................... 151

8

Source Operating Modes ............................................................. 154

Single Quadrant Operation .................................................... 154

Autoranging ............................................................................ 155

Downprogramming ................................................................ 155

CC Mode Delay ...................................................................... 155

Keysight N6705 User’s Guide

9

Power Limit Operation ........................................................... 156

Appendix A - Specifications ................................................................................. 179

Appendix B - SCPI Commands and Instrument Settings ..................................... 183

Appendix C - Using the Digital Port ..................................................................... 197

Output Grouping .................................................................... 157

Keysight N678xA SMU Multi-Quadrant Operation ............... 158

Output Bandwidth .................................................................. 161

Advanced Measurements ............................................................. 162

Digitizing Measurements ....................................................... 162

External Data Logging ........................................................... 168

Dynamic Current Correction Control..................................... 172

Measurement System Bandwidth.......................................... 173

Averaged Measurements ....................................................... 174

Current Histogram Measurements ........................................ 175

Measurement Data Formats .................................................. 178

Keysight N6705A, N6705B DC Power Analyzer Mainframe ....... 180

Supplemental Characteristics................................................ 180

Outline Diagram ..................................................................... 182

SCPI Command Summary ........................................................... 184

Common Commands ............................................................. 192

Interface Settings ................................................................... 193

Power-On Settings ................................................................. 194

Keysight N678xA SMU Initial Emulation Mode Settings ...... 196

Configuring the Digital Port ......................................................... 198

Bi-directional Digital I/O ........................................................ 198

Digital Input ............................................................................ 200

Fault Output ........................................................................... 200

Inhibit Input ............................................................................ 201

Fault/Inhibit Operating Mode ................................................ 202

Fault/Inhibit System Protection ............................................. 203

Trigger Input ........................................................................... 203

Trigger Output ........................................................................ 204

Output Couple Controls ......................................................... 205

Keysight N6705 DC Power Analyzer

1
Quick Reference

NOTE

DC Power Analyzer will also

User’s Guide

The Keysight N6705 DC Power Analyzer – At a Glance ............... 12

The Front Panel - At a Glance ....................................................... 16

The Rear Panel – At a Glance ........................................................ 17

Meter View ...................................................................................... 18

Scope View ..................................................................................... 19

Data Logger .................................................................................... 20

Arb Preview ..................................................................................... 21

Front Panel Menu Reference ......................................................... 22

This chapter concisely describes the operation of the Keysight N6705 DC
Power Analyzer.

This chapter does not describe every operating feature in detail. It is
simply a quick reference guide to quickly become familiar with the
operating features of the Keysight N6705 DC Power Analyzer.

Unless otherwise noted, the Keysight N6705
be referred to as “DC Power Analyzer” throughout this manual.

11

1 Quick Reference

Keysight N6705 User’s Guide

The Keysight N6705 DC Power Analyzer – At a Glance

Source Features

Color-coded display
and output controls

Corr
panel connectors and keys.

Programmable voltage
and current

Full programming capability is provided for the entire range of output voltage
and current for all power modules.

Low output noise

Available on
<4.5 mV peak-to-peak, which is comparable to linear supplies.

Fast up/down
programming

Available on
≤1.5 millisecond response time from 10% to 90% of the output rating.

Fast transient response

Available on
Transient response is less than 100 μs.

Output autoranging
capability

Available on
Autoranging supplies the maximum rated power over a continuous range of
voltage and current settings.

Output On/Off
sequencing

A turn
sequencing.

Front panel binding
posts

+ and
Sense terminals provide 4-wire voltage measurements.

Output protection

Outputs have over-voltage, over-current, and over-temperature protection.

Emergency shut-off

An emergency stop button to quickly shut down all outputs.

Multiple-Quadrant
operation

Available on
2
model N6784A offers 4- quadrant output operation.

The Keysight N6705 DC Power Analyzer is a multi-functional power
system that combines the functions of a multiple-output DC voltage
source with the waveform/data capturing capability of an oscilloscope
and data logger.

As a multiple-output DC source, the Keysight N6705 provides up to four
configurable outputs. Available power modules have power levels of 20
W through 500 W, have various voltage and current combinations, and
provide a variety of performance features as described under “Power
Module Capabilities”. Each output also has arbitrary (Arb) waveform
generation capability, which lets you program predefined voltage and
current waveforms – or define your own waveforms. Keysight N678xA
Source/Measure Units (SMU) have a multiple-quadrant power mesh with
separate voltage and current priority source modes.

As a measurement system, the Keysight N6705 displays the average
output voltage and current in Meter View. Waveforms are displayed in
Scope View, which you can adjust using vertical and horizontal controls.
The Data Logger View measures and charts average and peak voltage
and current measurements over an extended period.

espondence between color-coded information on the display and front

Keysight N676xA and N675xA power modules. Output noise is

Keysight N675xA, N676xA, and N678xA SMU power modules.

Keysight N675xA, N676xA, and N678xA SMU power modules.

Keysight N676xA and N675xA power modules.

-on/turn-off delay capability for each output allows output on/off

– output and + and – sense terminals are provided for each output.

Keysight N678xA SMU and N6783A power modules.

- quadrant operation provides source and sink output capability. Keysight

12

Quick Reference 1

Keysight N6705 User’s Guide

13

Measurement Features

Multiple-output/Single­output meter display

Switch between a 4
power supply information. All power modules display real
voltage and current measurements as well as status information.

Scope-like display

Voltage and/or current waveforms of all outputs can be simultaneously
displayed. Adjustable markers provide calculated measurements.

Data logging display

Average, minimum, and maximum voltage and current values can be logged
over an extended time period to the display. Adjustable markers provide
calculated measurements.

Measurement functions

Average, minimum, and maximum values are provided for all voltage and
current measurements. Output power (Wat
single-output meter view.

Seamless measurement
autoranging

Available on
modules.
however, the 10 μA current range must be selected manually.

Microampere current
measurements

Available on
Current measurement can be made as low as 1 μA in the 10 μA range.

Fast digitizing

Available on

5.12

Histogram measurement

Available on
modules.
current.

System Features

Choice of three interfaces

LAN, USB, and GPIB (IEEE
Menus let you set up GPIB and LAN parameters from the front panel.

Built-in Web server

A built
internet browser on your computer.

SCPI language

The instrument is compatible with the Standard Commands for
Programmable Instruments (SCPI).

Savable instrument data

A file management system saves display bitmaps
results, arbitrary waveforms, and data log results.

Memory port

Front USB port allows files to be saved to an external USB memory device.

Trigger connectors

Rear panel trigger in/out BNC connectors

Low acoustic noise

Low acoustic noise for quiet bench operation.

Universal AC input

Mainframes have universal input voltage capability with active power factor
correction.

-output summary view and a 1-output detailed view of

-time output

ts) is calculated for all outputs in

Keysight N6781A, N6782A, N6785A, and N6786A SMU power

Output measurements seamlessly autorange between ranges –

Keysight N6781A, N6782A, and N6784A SMU power modules.

Keysight N678xA SMU power modules.

μs/sample for one parameter; 10.24 μs/sample for two parameters.

Keysight N6781A N6782A, N6785A, and N6786A SMU power

Provides a statistical measurement for profiling the measured

-488) remote programming interfaces are built in

-in Web server lets you control the instrument directly from an

, instrument states, scope

1 Quick Reference

Keysight N6705 User’s Guide

Power Module Features

Feature

DC Power

High-Performance

Precision

N673xB, N674xB, N677xA

N675xA

N676xA

●

●

●

●

● ● ●

●

●

● ●

●

● ● ●

● ● ●

● ● ●

● ● ●

Notes:

(● = available)

50 W output rating N6731B – N6736B N6751A N6761A
100 W output rating N6741B – N6746B N6752A N6762A
300 W output rating N6773A – N6777A N6753A, N6754A N6763A, N6764A
500 W output rating N6755A, N6756A N6765A, N6766A

Output disconnect relays Option 761 Option 761 Option 761
Output disconnect/polarity reversal relays
Arbitrary waveform generation

NOTE 1

Option 760 Option 760 Option 760

● ● ●

Autoranging output capability

Voltage or current turn-on priority N6761A, N6762A
Precision voltage and current measurements
Low voltage and low current output range N6761A, N6762A
Low voltage and low current measurement range
200 microampere measurement range

NOTE 2

Option 2UA

Voltage or current scope traces
Simultaneous voltage and current scope traces

NOTE 4

NOTE 3

NOTE 3

N6751A, N6752A N6761A, N6762A

Simultaneous voltage and current data logging
Interleaved voltage and current data logging
Dynamic current correction

SCPI command list capability
SCPI command array readback

NOTE 4

NOTE 4

SCPI command programmable sample rate
SCPI command external data logging

NOTE 4

Double-wide (occupies 2 channel locations) N6753A – N6756A N6763A – N6766A
Large gate array

NOTE 5

Option LGA

1

Output current is limited to 10A max. on Models N6742B and N6773A with Option 760.

Option 760 is not available on Models N6741B, N6751A, N6752A, N6761A, and N6762A.

2

Option 2UA is only available on Models N6761A and N6762A. It includes Option 761.

3

Option 055 deletes the Data Logger function on Model N6705.

4

Only available when using the remote interfaces; not from the front panel.

5

Option LGA is required on Models N6751A and N6752A.

14

Quick Reference 1

Keysight N6705 User’s Guide

15

Keysight N678xA Power Module Features

Feature Source/Measure Units (SMU)

Application-Specific

N6781A

N6782A

N6784A

N6785A

N6786A

N6783A

BAT

N6783A

MFG

●

● ● ● ●

●

●

●

●

● ● ● ● ● ● ●

● ● ● ● ● ● ●

● ● ● ● ●

● ● ● ● ●

● ● ● ● ●

●

●

●

●

● ● ● ● ● ● ●

● ● ● ● ●

● ● ● ● ●

● ●

● ●

● ●

● ● ● ● ● ● ●

● ● ● ● ● ● ●

● ● ● ● ● ● ●

●

● ●

●

●

●

Notes:

(● = available)

Output rating 20 W 20 W 20 W 80 W 80 W 24 W 18 W
2-quadrant operation
4-quadrant operation
Auxiliary voltage measurement input

Output disconnect relays
Arbitrary waveform generation

NOTE 1

● ● ● ● ●

Negative voltage protection
Voltage or current priority mode

CC load/CV load
Voltage/current measurement only
Battery emulator/charger
Programmable output resistance

Multiple voltage output ranges 3 3 3 4 4
Multiple current output ranges 3 3 4 4 4
Multiple voltage measurement ranges 3 3 3
Multiple current measurement ranges 4 4 4 3 3 2 2

Voltage or current scope traces
Simultaneous voltage & current measurements

NOTE 3

NOTE 2

NOTE 2

● ● ● ● ● ● ●

NOTE 3

NOTE 3

Simultaneous voltage & current data logging
Interleaved voltage & current data logging
Seamless measurement autoranging

NOTE 3

NOTE 1, 3

SCPI command output list capability
SCPI command array readback
SCPI command programmable sample rate
SCPI command external data logging
SCPI command histogram measurements
Double-wide (occupies 2 channel locations)

Option 761 Option 761

1

Arbitrary waveform generation and List capability are not available on the negative current output on Model N6783A.

2

Option 055 deletes the Data Logger function on Model N6705.

3

Only available when using the remote interfaces; not the front panel.

1 Quick Reference

Keysight N6705 User’s Guide

The Front Panel - At a Glance

16

15 14

13

12

11

10

9

8

7

6

543

2

1

1

Line switch

2

Display

3

Measure keys

Run/Stop key starts or stops the scope or data log measurement.

4

Source keys

Arb Run/Stop key starts or stops the arbitrary waveform function.

5

Menu, Properties, File
keys

File key lets you save the current display, instrument settings, and measurements.

6

Navigation keys

Back key cancels the values entered into the dialog and backs out of the control.

7

Numeric/Alpha Entry
keys

selections.

8

Voltage/Current knobs

9

Select Output keys

10

Emergency Stop

11

Memory port

12

On keys

13

Binding posts

14

4 Wire

15

All Outputs On/Off keys

16

Waveform Display
controls

The Trigger knob moves the trigger level up or down. Press this knob to autoscale.

Turns the instrument On or Off.

Displays all instrument functions - information changes based on selected function.

Selects the measurement function - Meter View, Scope View, or Data Logger.

Programs the source function – Source Settings or Arbitrary waveform.

Menu key accesses all mode controls via a hierarchical command menu.
Properties key displays information specific to the active view (this is a menu
shortcut).

Navigate through the control dialog windows; press the Enter key to select a control.

Enters numeric and alpha values. Alpha keys automatically become active on fields
that allow alpha character entry. Repeatedly pressing the key scrolls thorough the

Sets the voltage and current of the selected output.

Selects an output to control. The lit key indicates the selected output.

Turns off all outputs without any delays; aborts any arbitrary waveforms.

USB Memory device connector. Option AKY deletes the connector.

Turns individual outputs On or Off; outputs are on when the key is lit.

+ and – output and sense banana terminals for all outputs.

Indicates that 4 Wire sensing is enabled on the output.

Turns all outputs On and Off according to the specified turn-on and turn-off delays.

Controls the scope and data logging views.
Vertical knobs control the vertical size and position. Press Offset to set marker 1.
Horizontal knobs control the horizontal size and position. Press Offset to set marker 2.

16

Quick Reference 1

Keysight N6705 User’s Guide

17

The Rear Panel – At a Glance

1

Cover screw

2

Digital Port connector

appendix C for details.

3

USB interface connector

deletes the connector.

4

LAN interface connector

5

AC input connector

6

GPIB interface connector

7

Trigger connectors

signal descriptions.

8

Aux Voltage
Measurement connector

9

Wiring access ports

measurements or output guarding is required.

WARNING

SHOCK HAZARD The power cord provides a chassis ground through a
third conductor. Be certain that your power outlet is of the three­conductor type with the correct pin connected to earth ground.

Facilitates top and bottom cover removal for power module installation.

Connects to the 8-pin digital port. Port functions are user-configurable. Refer to

Connects to USB interface. May be disabled from front panel menu. Option AKY

Connects to 10/100 Base-T interface. Left LED indicates activity. Right LED
indicates link integrity. May be disabled from front panel menu.

3-pin IEC 320 AC input connector. Power cord requires ground conductor.

Connects to GPIB interface. May be disabled from front panel menu.

BNC connectors for trigger in and trigger out signals. Refer to Appendix A for

Auxiliary voltage measurement connector. Only available on Keysight N6705B
mainframes for use with Keysight N6781A power modules.

Access for sense and output wire connections. Only available on Keysight N6705B
mainframes. Used for output connections on power modules rated > 20 A.
Also used for Keysight N678xA SMU power modules when extremely precise

1 Quick Reference

Keysight N6705 User’s Guide

Meter View

Multiple Output View

Single Output View

1

Output Identifier

The selected output is displayed in an enlarged format in single output view.

2

Output Status

OV: over
OV
OC: over
OT: over
PF: a power
Inh: an external inhibit signal
O
Prot: a coupled output protect occurred

3

Output Meters

4

Output Settings

current knob to adjust these settings. Can also be changed using the numeric keypad.

5

Interface Status

IO – there is activity on one of the remote interfaces

6

Model Number

7

Arb, Delay, &
Slew Rate

delay settings as well as the slew rate setting.

8

Polarity Reverse

9

Ratings &
Protection

10

Other Outputs

Press
Meter View
This key
toggles
between
multiple and
single output
views

Identifies the output. When an output is selected, the background becomes highlighted.

Off: the output is off
CV: the output is in constant voltage mode
CC: the output is in constant current mode
Unr: the output is unregulated
CP+, CP–: a positive or negative power limit
CL+, CL–: a positive or negative current limit
VL+, VL–: a positive or negative voltage limit

Displays the actual output voltage and current. Displays power in single output view.

Displays the present output voltage and current settings. Turn the front panel voltage or

Error – an error has occurred (press the Menu key, select Utilities, then Error Log)
LAN – the LAN is connected and has been configured

Identifies the model number of the power module connected to this output.

Displays the Arb waveform that is presently configured for this output. If no Arb is
configured, no waveform will be displayed. Also displays the Output On and Output Off

Indicates that the output and sense polarities are reversed.

-voltage protection tripped

–: negative voltage protection tripped

-current protection tripped

-temperature protection tripped

-fail condition occurred
is received

sc: the oscillation protection tripped

Displays the maximum voltage and current ratings of the output. Also displays the
present over-voltage protection setting and whether over-current protection is on or off.

Displays the actual voltage, current, and status of the other outputs.

18

Quick Reference 1

Keysight N6705 User’s Guide

19

Scope View

1
2

3

4

5
6
7
8
9

Standard View

10

11

12

13

Marker View

1

Trace Controls

the specified trace is turned off. Select the trace and press Enter to turn it on or off.

2

Output Traces

P1 and P2 indicate power traces. Press Trigger Level knob to autoscale all traces.

3

Horizontal Time­base

4

Scope Status

5

Data Bar

the display. Use the Horizontal Time/Div knob and Offset knob to adjust the display

6

Trigger Level

trigger. This can be adjusted using the Trigger Level knob.

7

Ground

prevent the traces from overlapping.

8

Trigger Mode

9

Trigger Source

output 1 is the trigger source (see #6).

10

M1 Marker

11

M2 Marker

12

Intersect Point

13

Measurements

Press
Scope View
This key
toggles
between
standard and
marker views.

Identifies the voltage or current trace that will be displayed. Dashes (----) indicate that

V1, V2, V3, and V4 indicate voltage traces. I1, I2, I3, and I4 indicate current traces.

Identifies the horizontal time-base settings. These can be adjusted using the front panel
Horizontal Time/Div and Offset knobs.

Indicates whether the scope is idle, running, or waiting for a trigger.

The highlighted area shows how much of the entire measurement is actually shown on

Identifies the trigger level through which the waveform must pass before the scope will

Identifies the ground reference level for the trace. This can be adjusted using the
Vertical Offset knob. The initial vertical offset of each trace is set to a different level to

Identifies the trigger mode setting. This can be selected by pressing the Properties key.

Identifies the trigger source and trigger level. Voltage 1 indicates a voltage level on

Measurement Marker 1 enabled. Adjust using Marker 1 knob. Press knob to reset.

Measurement Marker 2 enabled. Adjust using Marker 2 knob. Press knob to reset.

Shows where the measurement markers intersect the waveform.

Shows the calculations of the waveform data between Marker 1 and Marker 2.

1 Quick Reference

Keysight N6705 User’s Guide

Data Logger

NOTE

1

2

3
4

5

6

7

Standard View

8 9

10

11

Marker View

1

Trace Controls
the specified trace is turned off. Select the trace and press Enter to turn it on or off.

2

Output Traces

Press Trigger Level knob to autoscale all traces.

3

Status

4

Filename

5

Data Bar & Time
Elapsed

6

Time base
Information

7

Trigger

total duration, but shown in seconds on the display.

8

M1 Marker

9

M2 Marker

10

Intersect Point

11

Measurements

Press
Data Logger
This key
toggles
between
standard and
marker views

Option 055 deletes the Data Logger function on Model N6705.

Identifies the voltage or current trace that will be displayed. Dashes (----) indicate that

Voltage, current, or power traces. Voltage traces V1,V2, V3 and V4 shown.

Indicates whether the Data Logger is logging data, done logging, or is empty.

Indicate the file to which the data is being logged.

Displays the progress of the data logger. The yellow bar indicates the visible data.
Numbers to the right indicate time elapsed/total duration.

Displays the time remaining before the trigger point; the time at the center line of the

grid in relation to trigger point; and the time elapsed since the trigger.

Identifies the trigger source and trigger offset. The trigger offset is specified in % of the

Measurement Marker 1 enabled. Adjust using Marker 1 knob. Press knob to reset.

Measurement Marker 2 enabled. Adjust using Marker 2 knob. Press knob to reset.

Shows where the measurement markers intersect the waveform.

Shows the calculations of the waveform data between Marker 1 and Marker 2.

20

Quick Reference 1

Keysight N6705 User’s Guide

21

Arb Preview

1
2

3

4

5

6
7

8
9

Arb Preview

1

DC Value

Return to DC value

Last Arb Value

box is checked, the output will remain at the last programmed Arb value.

2

Output

on that output channel.

3

Wave shapes
arb(s) are started. Note that all Arbs will run simultaneously.

4

Trigger Source

5

Repeat

repeat. If the column is blank, the Arb will only run once.

6

7

3

8

Time

amount of time.

9

Close

Press
Arb
This dialog
displays the
arbitrary
waveforms
that have
been
configured.

This column indicates the present output voltage or current setting that appears at

the output before the Arb is run. The output will return to this value after the Arb

complete if the

This column identifies the output channel on which the associated waveform will run.
Use the navigation keys to select an output if you wish to select an Arb or edit the Arb

box has been checked. If the

This column illustrates the waveshapes that will run on each output when the

This dropdown list selects the trigger source for all configured Arbs.

This column indicates how many times the Arb will repeat if it has been configured to

Indicates that the Arb on output 2 runs continuously.

Indicates that the Arb on output 3 repeats three times.

Indicates the time that the longest Arb will run. In this example, all Arbs run the same

Closes the Arb Preview and returns to the previous measurement view.

1 Quick Reference

Keysight N6705 User’s Guide

Front Panel Menu Reference

Menu Heading

Description

Source Settings ►

Voltage and Current
Settings…

Configures the voltage and current settings, range

Protection…

Configures the over
outputs are

Advanced Protection…

Enables/disables the output inhibit function.

Output On/Off Delays…

Configures output on/off delays.

Output On/Off Coupling…

Couples specific outputs

Output Grouping…

Groups identical outputs for output paralleling function.

Advanced…

Configures

Ratings…

Displays po

Arb ►

Arb Preview

Displays the present status of the arbitrary waveforms that have been configured.

Arb Selection…

Selects

Meter ►

All Outputs Meter View

Displays the

Single Output Meter View

Displays the

Meter Properties…

Configures the

Scope ►

Standard View

Displays the standard scope view including vertical, horizontal, and trigger settings.

Marker View

Displays the measurement markers and measurement calculations area.

Scope Properties…

Configures the scope trace
outputs

Marker Properties…

Configures the measurements that appear on the bottom o

Horizontal Properties…

Configures the horizontal offset reference and sample points.

Datalogger ►

Standard View

Displays the data

Marker View

Displays the measurement markers and measurement calculations area.

Datalogger Properties…

Configures the dat
outputs. Also c

File Name Selection…

Specifies the file

Marker Properties…

Configures the measurements that appear on the bottom of the display in Marker view.

File ►

Save…

Saves an instrument state or a scope measurement.

Load…

Loads an instrument state, scope data, or logged data.

Export…

Exports scope data, logged data, or a user

Import…

Imports s user

Screen Capture…

Captures the screen that was active when the File key was pressed.

File Management…

Accesses additional file functions: New Folder, Delete, Rename, Copy, File Details.

Reset/Recall/Power-On
State…

Resets the instrument to factory defaults; Saves/recalls instrument states; and specifies

the power

disabled when a fault occurs. Also clears output protection.

advanced functions including voltage slew rate, sensing, and power limit.
wer module ratings, serial number, firmware, and option information.

arbitrary waveforms for each output. Arb Properties configures the selected Arb.

meter view of all outputs.
meter view of the selected output.

s, and emulation modes.

-voltage and over-current protection. Enables output coupling so ALL

for the output on/off and delay function.

meter view voltage and current measurement ranges.

s and voltage and current measurement ranges for individual

. Also configures the trigger source, mode, and horizontal offset.

f the display in Marker view.

log strip chart view including vertical, horizontal, and progress settings.

a log traces and voltage and current measurement ranges for individual

onfigures the data log duration, sample period, and Min/Max values.

name for the next data logger acquisition.

-defined arbitrary waveform

-defined arbitrary waveform.

-on turn on state.

22

Quick Reference 1

Keysight N6705 User’s Guide

23

Front Panel Menu Reference

Menu Heading

Description

Utilities ►

Error Log…

Lists all error messages.

I/O Configuration ►

Active LAN Status…

Displays the LAN status and active settings.

LAN Settings…

Configures the LAN interface.

GPIB/USB…

Configures the GPIB and USB int

User Preferences ►

Front Panel Preferences…

Configures screen saver, front panel key functions, and initial meter view.

Front panel Lockout…

Password

Clock Setup…

Sets up the i

Administrative Tools ►

Administrator Login/Logout…

Accesses the password

Calibration ►

Accesses the calibration functions.

I/O Access…

Enables/disables the LAN, We

Nonvolatile RAM Reset…

Resets all non

Disk Management…

Checks the internal drive.

Firmware Update…

Installs updated firmware from the front panel Memory p

Install Options…

Installs additional

Change Admin Password…

Changes the administrator password.

Digital I/O…

Configures the digital port. All seven pins can be individually configured.

Help ►

Overview…

A brief overview.

Quick Start ►

How to quickly get started.

Using the Keysight N6705 ►

How to use the

Using the Utilities ►

How to use the utilities.

Front Panel Controls ►

How to use the front

Front Panel Navigation…

How to navigate the front panel display.

Module Capabilities and Ratings

How to obtain module capabilities/ratings.

About

Identifies the mainframe and the installed modules

-protects the front panel keys.
nternal clock.

-protected administrative functions.

-volatile memory settings to the factory defaults.

firmware options.

(continued)

erface.

b server, and USB.

ort.

Keysight N6705.

panel controls.

Keysight N6705 DC Power Analyzer

2
Installation

User’s Guide

General Information ....................................................................... 26

Inspecting the Unit ......................................................................... 27

Installing the Unit ........................................................................... 28

Connecting the Line Cord .............................................................. 33

Connecting the Outputs ................................................................. 33

Connecting the BNC Connectors .................................................. 44

Connecting the Digital Port ........................................................... 45

Connecting the Auxiliary Voltage Measurement Input ................. 46

Connecting to the Interfaces ......................................................... 47

Communicating Over the LAN ....................................................... 54

This chapter describes how to install your DC Power Analyzer. It
discusses rack mounting and line cord connections.

This chapter also discusses how to connect your load to the output
terminals, wiring considerations as well as series/parallel connections.

Finally, detailed information is provided about connecting to the GPIB,
USB, and LAN interfaces.

25

2 Installation

Keysight N6705 User’s Guide

General Information

Models

Keysight Model

Description

Options

Mainframe
Options

Description
Power Module Options

N6705A, N6705B 600 W DC Power Analyzer mainframe - without power modules
N6715A, N6715B Build-to-order DC Power Analyzer system - mainframe with installed power

modules
N6731B / N6741B 50 W / 100 W 5 V DC Power Module
N6732B / N6742B 50 W / 100 W 8 V DC Power Module
N6733B / N6743B / N6773A 50 W / 100 W / 300 W 20 V DC Power Module
N6734B / N6744B / N6774A 50 W / 100 W / 300 W 35 V DC Power Module
N6735B / N6745B / N6775A 50 W / 100 W / 300 W 60 V DC Power Module
N6736B / N6746B / N6776A, N6777A 50 W / 100 W / 300 W 100 V DC Power Module
N6751A / N6752A 50 W / 100 W High-Performance Autoranging DC Power Module
N6753A, N6754A / N6755A , N6756A 300 W / 500 W High-Performance Autoranging DC Power Module
N6761A / N6762A 50 W / 100 W Precision DC Power Module
N6763A, N6764A / N6765A, N6766A 300 W / 500 W Precision DC Power Module
N6781A, N6782A, N6784A 20 W Source/Measure Unit (SMU)
N6785A, N6786A 80 W Source/Measure Unit (SMU)
N6783A-MFG / N6783A-BAT 18 W / 24 W Application-Specific DC Power Module

ABA English Manual Set. Contains User’s Guide and Service Guide. Also available as p/n N6705-90000.
ABJ Japanese Manual Set. Contains User’s Guide and Service Guide. Also available as p/n N6705-90403.
AB1 Korean Manual Set. Contains User’s Guide and Service Guide. Also available as p/n N6705-90406.
AB2 Chinese Manual Set. Contains User’s Guide and Service Guide. Also available as p/n N6705-90408.
AKY Deletes the front and rear panel USB connector.
055 Deletes the Data Logger function.
056 Keysight 14585A Control and Analysis Software.
908 Rack Mount Kit. For mounting in a 19-inch EIA rack cabinet. Also available as p/n 5063-9215.
909 Rack Mount Kit with handles. Also available as p/n 5063-9222.

NOTE 1

760

761
LGA Large gate array. Required on Models N6751A, N6752A for use in the DC Power Analyzer.
UK6 Commercial calibration with test results data
1A7 ISO 17025 calibration certificate
2UA 200 microampere measurement range with output disconnect relays. Only on Models N6761A, N6762A.

Output disconnect/polarity reversal. Disconnects the + and – output and sense terminals. Switches the

+ and – output and sense polarities. Not available on N6741B, N6751A, N6752A, N676xA, or
N678xA.SMU.

NOTE 1

Output disconnect. Disconnects + and – output and sense terminals. Available for all power modules.

1

A small AC network is always present across the output terminals.

26

Installation 2

Keysight N6705 User’s Guide

27

Items Supplied

Mainframe Items

Description

Part Number

Power Module Items

Inspecting the Unit

Power Cord A power cord suitable for your location. Call Keysight Sales & Support Office
Digital Connector plug 8-pin connector for connecting signal lines to the digital port.

AUX Measurement
Connector plug (2)

Spare grommets Two spare grommets for rear panel sense and load wiring. Keysight 0400-1009

Product Reference CD-ROM Includes drivers and documentation. Keysight 14585-13601

Automation-Ready CD-ROM Contains Keysight IO Libraries Suite. Keysight E2094R

Quick Start Tutorial A tutorial to help you quickly get started. Keysight N6705-90005

T-10 Torx tool Torx tool for installing or removing power modules. Keysight 8710-2416

8-pin connector plugs for connecting the auxiliary measurement
inputs. Only used with Keysight Model N6781A.

8 A Output Connector plug

12 A Output Connector plug

20 A Output Connector plug

50 A Output Connector plug

AUX Measurement
connector plug

Small Sense Jumpers

Large Sense Jumpers

Sense Connector

Module Cal. Certificate A certificate of calibration referenced to the serial number. N/A

One 8 A, 8-pin connector plug for connecting power and sense
leads. Only used in N678xA SMU.

One 12 A, 4-pin connector plug for connecting power and sense
leads. Used in all except N6731B, N6741B, N6753A-N6756A,
N6763A-N6766A, N6773A, N678xA SMU.

One 20 A, 4-pin connector plug for connecting power and sense
leads. Only used in N6731B, N6741B, N6754A, N6756A,
N6764A, N6766A, N6773A.

One 50 A, 2-pin connector plug for connecting power leads.
Only used in N6753A, N6755A, N6763A, N6765A.

A 2-pin connector plug for connecting the auxiliary
measurement inputs. Only used in N6781A.

Two small jumpers for local sensing at the output connector.
Used in all except N6731B, N6741B, N6753A-N6756A, N6763A­N6766A, N6773A, N678xA SMU.

Two large jumpers for local sensing at the output connector.
Only used in N6731B, N6741B, N6754A, N6756A, N6764A,
N6766A, N6773A.

A 4-pin connector for connecting sense leads. Wires (p/n 5185-

8847) are used for local sensing. Only used in N6753A, N6755A,
N6763A, N6765A.

Keysight 1253-6408
Phoenix Contact MC 1,5/8-ST-3,5

Keysight 1253-6408
Phoenix Contact MC 1,5/8-ST-3,5

Keysight 1253-6408
Phoenix Contact MC 1,5/8-ST-3,5

Keysight 1253-5826
Phoenix Contact MSTB 2,5/4-STF

Keysight 1253-6211
Phoenix Contact PC 4/4-ST-7,62

Keysight 1253-7187
Molex 39422-0002

Keysight 1253-8485
Phoenix Contact FMC 1,5/2-ST-3,5

Keysight 8120-8821
Phoenix Contact EPB 2-5(1733169)

Keysight 0360-2935
Phoenix Contact 3118151

Keysight 1253-5830
Phoenix Contact MC 1,5/4-ST-3,5

When you receive your DC Power Analyzer, inspect it for obvious
damage that may have occurred during shipment. If there is damage,
notify the shipping carrier and nearest Keysight Sales and Support Office
immediately. Refer to www.keysight.com/find/assist

.

Until you have checked out the DC Power Analyzer, save the shipping
carton and packing materials in case the unit has to be returned. Check
the list under “Items Supplied” and verify that you have received these
items with your instrument. If anything is missing, please contact your
nearest Keysight Sales and Support Office.

2 Installation

Keysight N6705 User’s Guide

Installing the Unit

Safety Considerations

WARNING

Some models generate voltages in excess of 60 VDC. Ensure that
instrument connections, load wiring, and load connections are either
insulated or covered so that no accidental contact with lethal output
voltages can occur.

Environment

WARNING

Do not operate the unit in the presence of flammable gasses or fumes.

Cleaning

WARNING

SHOCK HAZARD To prevent electric shock, unplug the unit before
cleaning.

Power Module Location

This DC Power Analyzer is a Safety Class 1 instrument, which means it
has a protective earth terminal. That terminal must be connected to earth
ground through a power source equipped with a ground receptacle.

Refer to the Safety Summary page at the beginning of this guide for
general safety information. Before installation or operation, check the
DC Power Analyzer and review this guide for safety warnings and
instructions. Safety warnings for specific procedures are located at
appropriate places throughout this Guide.

The environmental conditions of the instrument are documented in
Appendix A. Basically, the instrument should only be operated indoors in
a controlled environment.

The dimensions of your instrument as well as an outline diagram are
given in Appendix A. Fans cool the DC Power Analyzer by drawing air
through the side and exhausting it out the opposite side and back. The
instrument must be installed in a location that allows sufficient space at
the sides and back of the unit for adequate air circulation.

Use a dry cloth or one slightly dampened with water to clean the
external case parts. Do not use detergent or chemical solvents. Do not
attempt to clean internally.

The location of the power modules inside the mainframe determines their
front panel output assignments. To view the module/output assignments,
turn the unit on, press the Settings key, then press Properties. The power
modules are listed under each output channel.

Outputs that are not connected to a power module will not be displayed
in the Meter view.

28

Installation 2

Keysight N6705 User’s Guide

29

Power Module Installation

NOTE

CAUTION

Tools required:

Firmware Note:

Step 1. Remove the top and bottom covers.

Step 2. Place the power modules in the mainframe

NOTE

2

1

3 4

2 1

3 4

The information in this section applies if you have purchased an N6705
mainframe without the power modules installed, or if you are adding a
power module to the mainframe.

Turn the mainframe off and disconnect the power cord before installing
or removing power modules. Observe all standard electrostatic
discharge precautions before handling electronic components.

T10 Torx driver;

Small flat-blade screwdriver

5.5 mm hex wrench

Newer power modules can only be installed in N6705
mainframes with the latest firmware. Refer to the “Updates” section in
the front of this manual for more information. If your mainframe has the
latest firmware version, install the power module. If not, download and
install the latest version firmware from the web.

Loosen the thumb-screws to remove the covers. Turn the unit upside­down to remove the bottom cover.

Align the power module over the pins and gently push it down onto the
connector. Install the screws at each end of the power module. The
torque specification for the screws is 9 inch-pounds.

If you are installing a double-wide power module, you must first remove

the center deflector. Use a T10 Torx to remove the top deflector; use a

5.5 mm hex to remove the bottom deflector. Install the deflector in the
storage location on the opposite end of the module. Connect the
double-wide power module to output 1 or output 3 only.

2 Installation

Keysight N6705 User’s Guide

Step 3. Connect the front panel wire harness.

For power modules that use 12 A output connectors

For power modules with 20 A output connectors

For power modules with 50 A output connectors

For Keysight N678xA SMU power modules

only

+s + -s

+

S

+

–

–

S

1

2

1

–

+

Aux Meas –

Aux Meas +

+

S

+

–

–

S

–

– G

+

+

+S G –S

3

1

2

1. To front
panel
binding post.

2. 20 A
connector

–
Simply push the 12 A connector plug into the power module. Tighten the
locking screws on the connector.

–
On N6705B mainframes, remove the 12 A connector plug from the wire
harness and install the 20 A connector plug provided with the power
module. Observe the output color code. Tighten all connector screws.
Install the connector in the module.
On N6705A mainframes, install the wire harness with the 20 A connector
plug directly into the power module.

–
see “High Current Output Connections”.

1. To front
panel
binding post.

2. Aux Meas
connector

3. To rear
panel
connector

A. Adapter A
required for
N6705A
mainframes

30

–
Remove the 12A connector plug from the wire harness and install the 8­pin connector plug provided with the power module. Install the front
panel cable wires in the output connector as shown. Observe the output
color code. Tighten all connector screws. An adapter “A” is required to
install modules in Keysight N6705A mainframes.

For models N6781A and N6785A, also connect the auxiliary
measurement cable. Remove the cable from its rear panel storage
location and insert the connector into the power module. The cable’s
color code corresponds to the AUX voltage measurement label on the
rear panel.

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31

Step 4. Finish the Installation.

High Current Output Connections

NOTE

CAUTION

Do not connect the front panel cable assembly to the high current output
power modules

Step 1. Route the load wires through the rear panel.

Step 2. Connect the wires to the power module.

Step 3. Finish the Installation.

1. 50 A output

2. Sense

3. Twist leads

4. To load

1

2

3

4

Place any unused cable harnesses in the clip ring located between the
power modules and the front panel. Install the top and bottom covers.
Push the covers into place and tighten the thumbscrews.

This information only applies to power modules with output current ratings of 50A.

.
Because the front panel binding posts have a maximum current rating of
20 A, they are not available for use with the above models.

High current (50 A) load connections are made using the rear panel
access ports of the Keysight N6705B. These access ports have a thin
rubber membrane which can be pierced using the load wires.

connector

connector

User-supplied load and sense wires must be used to connect to the
output and sense connector plugs on the high current power module.

Push the high current load wires through the rear panel access port. If
you are using remote sensing, route the sense wires though the second
access port. Twist each wire pair.

Connect the load wires to the output connector of the power module as
shown. Connect the sense wires to the sense connector.

Place any unused cable harnesses in the clip ring located between the
power modules and the front panel. Install the top and bottom covers.
Push the covers into place and tighten the thumbscrews.

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Keysight N6705 User’s Guide

Bench Installation

CAUTION

Do not block the air intake and exhaust at the sides, or the exhaust at
the rear of the unit. Refer to the outline diagram in Appendix A.

Rack Installation

CAUTION

400 Hz Operation

Redundant Ground Requirement

Power Factor

Minimum clearances for bench operation are 2 inches (51 mm) along the
sides and back.

For easier display viewing and binding post access, you can tilt the front
of the unit up by rotating the extension bar down.

Use Rack Mount kit (Option 908 or Option 909 with handles) to rack
mount the instrument. Installation instructions are provided with the
rack mount kit.

Keysight N6705 DC Power Analyzer mainframes can be mounted in a
19-inch EIA rack cabinet. They are designed to fit in four rack-units (4U)
of space.

Remove the feet before rack mounting the unit. Do not block the air
intake and exhausts at the sides and rear of the unit.

At 400 Hz AC input operation, the leakage current of the unit exceeds

3.5 mA. This requires the installation of a permanent, redundant ground
from the instrument chassis to earth ground. This ensures that ground
will always be connected and that any leakage current will be diverted to
ground. Refer to the “Connecting the BNC Connectors” later in this
chapter for installation instructions.

Refer to Appendix A for power factor statistics at 400 Hz operation.

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33

Connecting the Line Cord

WARNING

FIRE HAZARD Use only the power cord that was supplied with your
instrument. Using other types of power cords may cause overheating of
the power cord, resulting in fire.

SHOCK HAZARD The power cord provides a chassis ground through a
third conductor. Be certain that your power outlet is of the three­conductor type with the correct pin connected to earth ground.

NOTE

Connecting the Outputs

WARNING

SHOCK HAZARD Turn off all outputs before making front or rear panel
connections. All wires and straps must be properly connected with the
binding posts securely tightened.

Some models generate voltages in excess of 60 VDC. Ensure that
instrument connections, load wiring, and load connections are either
insulated or covered so that no accidental contact with lethal output
voltages can occur.

AB

Connect the power cord to the IEC 320 connector on the rear of the unit.
If the wrong power cord was shipped with your unit, contact your
nearest Keysight Sales and Support Office.

The AC input on the back of your unit is a universal AC input. It accepts
nominal line voltages in the range of 100 VAC to 240 VAC. The frequency
can be 50 Hz, 60 Hz, or 400 Hz.

The detachable power cord may be used as an emergency disconnecting
device. Remove the power cord to disconnect AC input power to the unit.

The binding posts accept wires sizes up to AWG 14 in location (A).
Securely fasten all wires by hand-tightening the binding posts. A chassis
ground binding post is located on the front panel for convenience. You
can also insert standard banana plugs into the front of the connectors as
shown in (B).

Maximum
current rating:
(A) = 20 A
(B) = 15 A

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Keysight N6705 User’s Guide

Wire Size and Length

WARNING

FIRE HAZARD Select a wire size large enough to carry short-circuit
current without overheating (refer to the table below). To satisfy safety
requirements, load wires must be heavy enough not to overheat while
carrying the short-circuit output current of the unit. Keysight Model
N678xA SMU wiring requirements are described on the following page.

Wire size

Current-carrying capacity in Amps
for stranded copper wire

Resistance

Max. Length to Limit Voltage to 1 V/Lead
for 5 A for 10 A for 20A for 50 A

AWG

2 wires bundled

4 wires bundled

Ω/foot

Wire length in feet

20

7.8

6.9

0.0102

20 x x

x

6

94

83

0.0004

504

252

126

50

Area in mm2

2 wires bundled

4 wires bundled

Ω/meter

Wire length in meters

1.5

15.0

13.3

0.0137

14.6

7.2 x x

2.5

23.5

20.8

0.0082

24.4

12.2

6.1

x

4

30.1

26.6

0.0051

39.2

19.6

9.8

3.9

6

37.6

33.2

0.0034

58

29

14.7

5.9

10

59.2

52.3

0.0020

102

51

25

10.3

Along with conductor temperature, you must also consider voltage drop
when selecting wire sizes. The following table lists the resistance for
various wire sizes and the maximum lengths to limit the voltage drop to

1.0 V per lead for various currents.

Note that the minimum wire size required to prevent overheating may
not be large enough to prevent over-voltage tripping or maintain good
regulation. Under most conditions, the load wires should also be heavy
enough to limit the voltage drop to no more than l.0 V per lead.

To help prevent nuisance tripping of the over-voltage circuit, select a
wire size sufficient to handle the FULL output current of the unit no
matter what the intended load current or current limit setting

Load lead resistance is also an important factor relating to the CV
stability of the instrument when remote sensing capacitive loads. If high
capacitance loads are expected, you should not use wire gauges heavier
than 12 to 14 AWG for long runs of load lead.

18 14.5 12.8 0.0064 30 15 x x
16 18.2 16.1 0.0040 50 25 x x
14 29.3 25.9 0.0025 80 40 20 x
12 37.6 33.2 0.0016 125 63 30 x
10 51.7 45.7 0.0010 200 100 50 20
8 70.5 62.3 0.0006 320 160 80 32

0.5 7.8 6.9 0.0401 5 x x x

0.75 9.4 8.3 0.0267 7.4 x x x
1 12.7 11.2 0.0200 10 5 x x

Notes: 1. Capacity for AWG wires derived from MIL-W-5088B. Max. ambient temp: 55°C. Max. wire temp: 105°C.

2. Capacity for metric wires are derived from IE Publication 335-1.

3. Capacity of aluminum wire is approximately 84% of that listed for copper wire.

4. “x” indicates wire is not rated for the maximum output current of the power module.

5. Because of wire inductance considerations, it is also recommended that you keep your load leads twisted, tie wrapped, or
bundled together and less than 50 feet (14.7 meters) in length per lead.

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35

Keysight N678xA SMU Wiring Requirements

NOTE

To N6705 front panel post

To N678xA module connector

Cable Type

Length in
feet

Length in
meters

Length in
feet

Length in
meters

High Bandwidth Modes with Remote Sensing

C

L

4

5

1

2

3

L

< 15

cm

+ s

- s

+

-

N678xA

Because of the effect of wire inductance, the wire length information
given in the previous table does not apply to Keysight Models N678xA
SMU.

To minimize the effect of wire inductance, the following table describes
the allowable load lead and wire length for several common cable types.
Using longer (or shorter) cable lengths than those indicated in the table
may cause output oscillation.

Twisted pair (AWG 14 or smaller) 0 to 3.25 ft 0 to 1 m 1 to 4.25 ft 0.3 to 1.3 m

50 ohm coaxial (RG-58) 0 to 6.5 ft 0 to 2 m 2 to 10 ft 0.6 to 3 m

10 ohm coaxial (inductance per
cable foot ≤ 32 nH)

0 to 26 ft 0 to 8 m 8.5 to 33 ft 2 to 10 m

The following wiring requirements apply when using Keysight Models
N678xA SMU in the High bandwidth modes with remote sensing.

Refer to chapter 6 under “Output Bandwidth” for more information
about the bandwidth settings.

1) Load wires must be twisted-pair or coax and must not be twisted with

the sense wires. Refer to the above table for length (L).

2) Sense wires must be twisted-pair or coax and must not be twisted

with the load wires.

3) No capacitors are allowed within the sense-compensated load path.

4) If the load capacitor (C

distance from the sense point to the load capacitor cannot exceed

) is not located at the sense point, the

L

15 cm and must be twisted-pair, coax, or pc traces.

5) If the test fixture consists of pc traces, the positive and negative

traces should be directly facing on adjacent layers.

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Keysight N6705 User’s Guide

Low Bandwidth Mode with Remote or Local Sensing

Guard Connection

NOTE

2

1

- -

G

+ +

+S

G

-S

GUARD

- +

w

h

To minimize inductance, the width (w) of the traces should be at
least as great as the thickness of the dielectric (h). It is better to

make the traces much wider than this minimum requirement in order
to minimize the DC resistance.

All previously stated wiring requirements still apply in Low bandwidth
mode except for the following.

The 15 cm maximum limit between the sense point and the load
capacitor (see #4) does not apply when using Low bandwidth mode.

The purpose of a cable guard is to eliminate the effects of leakage
current that can exist in the current path of the external test circuit. The
cable guard can be used when the test fixture requires guarding and the
DC Power Analyzer is sourcing or measuring DC currents under 1μA.
Without a guard, leakage currents in the test circuit could affect the
accuracy of the micro-ampere measurements. Guarding is generally not
required when measuring currents 1μA and greater.

You cannot connect to the front panel binding posts when using the Guard.
You must route ALL wires (guard, load, and sense) through the rear panel
access ports of the N6705B mainframe. Refer to the diagram under “High
Current (50 A) Output Connections” for more information. These access
ports can also be used when extremely precise output measurements are
required.

As shown below, cable guards are available at the internal connector of
Keysight Models N678xA SMU. The guard is typically used to drive the
shields of cables and test fixtures. It provides a buffered voltage that is at
the same potential as the + output terminals of the module connector.
The guard current is limited to about 300 μA.

1. Internal
N678xA SMU
connector

2. Guard shield
(can be the
shield of a
coaxial cable)

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37

Multiple Loads

4-Wire Sense Connections

4-wire

If you are connecting multiple loads to one output, connect each load to
the output terminals using separate connecting wires as shown.

1. Twist leads

2. 4-wire
disabled
(indicator
is off)

This minimizes mutual coupling effects and takes full advantage of the
DC Power Analyzer's low output impedance. Keep each pair of wires as
short as possible and twist or bundle them to reduce lead inductance
and noise pickup. Keep the load leads under 14.7 meters (50 feet) per
lead because of inductance effects.

Keysight Models N678xA SMU have additional wiring restrictions as
discussed under “Keysight N678xA SMU Wiring Requirements”.

If load considerations require the use of distribution terminals that are
located away from the instrument, connect the output terminals to the
remote distribution terminals by a pair of twisted or bundled wires.
Connect each load to the distribution terminals separately. 4-wire
sensing is recommended under these circumstances. Sense either at the
remote distribution terminals or, if one load is more sensitive than the
others, directly at the critical load.

The DC Power Analyzer includes built-in relays that connect or
disconnect the ± sense terminals from their corresponding ± output
terminals. As shipped, the sense terminals are internally connected to
the output terminals. This is referred to as Local sensing.

4-wire, or remote sensing improves the voltage regulation at the load by
monitoring the voltage at the load rather than at the output terminals.
This automatically compensates for the voltage drop in the load leads,
which is especially useful for CV operation with load impedances that
vary or have significant lead resistance. Because remote sensing is
independent of other DC Power Analyzer functions, it can be used
regardless of how the instrument is programmed. Remote sensing has
no effect during CC operation.

The following figures illustrate load connections using local sensing (A),
and 4-wire remote sensing (B). When the
sense terminals is on, it indicates that the sense terminals must be
connected to the load.

indicator above the

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Keysight N6705 User’s Guide

Advanced

4-Wire

1. Twist leads

2. 4-wire
disabled
(indicator
is off)

3. 4-wire
enabled
(indicator
is on)

Connect the load to the output terminals using separate connecting
wires. Keep the wire-pair as short as possible and twist or bundle it to
reduce lead inductance and noise pickup. Keep the load leads under

14.7 meters (50 feet) per lead because of inductance effects.

Connect the sense leads as close to the load as possible. Do NOT bundle
the sense wire-pair together with the load leads; keep the load wires and
sense wires separate. The sense leads carry only a few milliamperes of
current and can be a lighter gauge than the load leads. However, any
voltage drop in the sense leads can degrade the voltage regulation of
the instrument. Try to keep the sense lead resistance less than about

0.5Ω per lead (this requires 20 AWG or heavier for a 50 foot length).

Keysight Models N678xA SMU require remote sensing when using any of
the High output bandwidth modes discussed in Chapter 6. Also, these
models have additional wiring restrictions as discussed under “Keysight
N678xA SMU Wiring Requirements”.

After turning the unit on, activate 4-wire remote voltage sensing by
pressing the Settings key. Navigate to and select
Sense dropdown list select

.

. In the

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39

Open Sense Leads

Over-Voltage Protection Considerations

Output Noise Considerations

The sense leads are part of the output's feedback path. Connect them so
that they do not inadvertently open. The DC Power Analyzer has
protection resistors that reduce the effect of open sense leads during 4­wire sensing. If the sense leads open during remote sensing, the output
returns to local sensing mode, with the voltage at the output terminals
approximately 1% higher than the programmed value.

You must take into account any voltage drop in the load leads when
setting the over-voltage trip point. This is because the OVP circuit
senses at the output terminals and not at the sense terminals. Due to
the voltage drop in the load leads, the voltage sensed by the OVP circuit
could be higher than the voltage being regulated at the load.

Note that for Keysight Models N678xA SMU only, the OVP circuit senses
at the 4-wire sense terminals rather than at the output terminals. This
allows for more precise over-voltage monitoring directly at the load.
Since incorrect sense terminal wiring could defeat this feature, there is
also a backup “local OVP” function for these models.

This local OVP function tracks the programmed OVP setting and trips if
the voltage at the + and − output terminals rises more than 1.5 V above
the programmed OVP setting. The local OVP also trips if the voltage at
the + and - output terminals exceeds 1.5 V of any of the voltage ranges
(for example >21.5 V of the 20 V range).

Any noise picked up on the sense leads will appear at the output
terminals and may adversely affect CV load regulation. Twist the sense
leads to minimize the pickup of external noise. In extremely noisy
environments it may be necessary to shield the sense leads. Ground the

shield at the DC Power Analyzer end only; do not use the shield as one

of the sensing conductors.

The noise specifications documented in the Keysight N6700 Modular
Power System Family Specifications Guide apply at the output terminals
when using local sensing. However, voltage transients may be produced
at the load by noise induced in the leads or by load current transients
acting on the inductance and resistance of the load lead. If it is desirable
to keep voltage transient levels to a minimum, place an aluminum or
tantalum capacitor, with an approximate value of 10 µF per foot (30.5
cm) of load lead, right across the load.

2 Installation

Keysight N6705 User’s Guide

Parallel Connections

CAUTION

Effect on Specifications

Current

All parallel specifications r
specification except for programming resolution, which is the same for both
single output and parallel output operation.

Voltage

All parallel specifications referring to voltage are the same as for a single
output except for CV load effect, CV load cross regulation, CV source effect,
and CV short term drift. These are all twice the voltage programming accuracy
(including the percentage portion) at all operating points.

Load Transient
Recovery Time

Load trans

Only connect outputs that have identical voltage and current ratings in
parallel. Keysight Models N678xA SMU may be paralleled, but ONLY when
operated in Current Priority mode. Voltage Priority operation is not
allowed. Output Grouping is not available.

Connecting outputs in parallel provides a greater current capability than
can be obtained from a single output.

The following figures show how to connect two outputs in parallel. The
figure on the left illustrates local sensing. If voltage drop in the load
leads is a concern, the figure on the right shows how to connect the
sense leads directly at the load (4-wire sensing).

Once outputs have been connected in parallel, they can be configured or
“grouped” to act as a single, higher-power output. This applies when
programming via the front panel or using SCPI commands. How to
group outputs that have been connected in parallel is discussed in
Chapter 6 under “Output Grouping”.

1. Twist leads

2. 4-wire
disabled
(indicator
is off)

3. 4-wire
enabled
(indicator
is on)

Specifications for outputs operating in parallel can be obtained from the
specifications for single outputs. Most specifications are expressed as a
constant or as a percentage (or ppm) plus a constant. For parallel
operation, the percentage portion remains unchanged while constant
portions or any constants are changed as indicated below. For current
readback accuracy and temperature coefficient of current readback, use
the minus current specifications:

eferring to current are twice the single output

ient specifications are typically twice the single output.

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41

Series Connections

WARNING

SHOCK HAZARD Floating voltages must not exceed 240 VDC. No
output terminal may be more than 240 VDC from chassis ground.

CAUTION

To prevent reverse currents from damaging the DC Power Analyzer when

NOTE

Only connect outputs that have identical voltage and current ratings in
series. Models N678xA SMU and N6783A–BAT/MFG cannot be
connected in series.

the load is connected, always turn series-connected outputs on and off
together.Do not leave one output on while the other is off.

You can only use the series-connected outputs in “standard” power
supply mode. You cannot generate arbitrary waveforms, make scope
measurements or use data logging on outputs that are connected in
series.

1. Twist leads

2. 4-wire
disabled
(indicator
is off)

3. 4-wire
enabled
(indicator
is on)

Connecting outputs in series provides a greater voltage capability than
can be obtained from a single output. Because the current is the same
through each element in a series circuit, outputs connected in series
must have equivalent current ratings.

The following figures show how to connect two outputs in series to a
single load. If voltage drop in the load leads is a concern, connect the
sense leads of output 1 and output 2 for remote sensing as shown in the
figure on the right. Connecting the +S terminal of output 2 to the

-S terminal of output 1 and connecting a jumper between +S and + on
output 2 compensates for the IR drop in the load lead from output 2 to
output 1.

2 Installation

Keysight N6705 User’s Guide

NOTE

Effect on Specifications

Voltage

for a single output.

Current

operating points.

Load Transient
Recovery Time

Additional Load Considerations

Response Time with an External Capacitor

To program outputs connected in series, first program the current limit
of each output to the total desired current limit point. Then program the
voltage of each output so that the sum of both voltages equals the total
desired operating voltage. The simplest way to accomplish this is to
program each output to one half of the total desired operating voltage.

The operating mode of each output is determined by the output’s
programmed settings, operating point, and load condition. Because
these conditions may change during series operation, the operating
status indicators on the front panel will reflect these changes. This is
normal. Momentary status changes are also normal.

Specifications for outputs operating in series can be obtained from the
specifications for single outputs. Most specifications are expressed as a
constant or a percentage (or ppm) plus a constant. For series operation,
the percentage portion remains unchanged while constant portions or
any constants are changed as indicated.

All series specifications referring to voltage are twice the single output
specification except for programming resolution, which is the same as

All series specifications referring to current are the same as for a single
output except for CC load effect, CC load cross regulation, CC source
effect, and CC short term drift. These are twice the current
programming accuracy (including the percentage portion) at all

Load transient specifications are typically twice the single output.

When programming with an external capacitor, voltage response time
may be longer than that for purely resistive loads. Use the following
formula to estimate the additional up-programming response time:

Response Time = (Added Output Capacitor)X(Change in Vout)

(Current Limit Setting)−(Load Current)

Note that programming into an external output capacitor may cause the
DC Power Analyzer to briefly enter constant current or constant power
operating mode, which adds additional time to the estimation.

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43

Positive and Negative Voltages

NOTE

Protecting Sensitive Loads from AC Power Switching Transients

NOTE

not

always

Either positive or negative voltages with respect to ground can be
obtained from the output by grounding (or "commoning") one of the
output terminals. Always use two wires to connect the load to the output
regardless of where or how the system is grounded. The instrument can
be operated with any output terminal ± 240 VDC including output
voltage from ground.

Keysight Models N678xA SMU are optimized for grounding the negative
output terminal. Grounding the positive terminal may result in increased
current measurement noise and a reduction in current measurement
accuracy.

If your load is connected directly to the output binding posts and is
connected to chassis ground in any way, you do not need to worry about
AC power switching transients appearing at the output binding posts.

Operating the AC line switch can inject common mode current spikes
into the DC output leads, resulting in voltage spikes that may damage
loads that are highly sensitive to voltage or current transients. Note that
any electronic device meeting international standards for EMI
compliance is likely to generate similar current spikes. This situation
arises from the presence of EMI filters at both the AC input and the DC
output. These filters typically include common mode capacitors
connected to the chassis of the DC Power Analyzer. Since the AC input
has an earth ground, any load that is also earth-grounded provides a
possible return path for common mode currents.

The following steps will help mitigate common mode current spikes
appearing at the output binding posts when the DC Power Analyzer is
turned on or off by the AC line switch:

 Install a separate “bonding” wire from the load’s common point, to

the ground terminal of the DC Power Analyzer. This provides a lower
impedance path that helps direct injected currents away from the
DC output leads (and the sensitive load).

 Disconnect the load from the output before turning the unit on or

off. This

protects the load from common mode currents.

2 Installation

Keysight N6705 User’s Guide

Connecting the BNC Connectors

Trigger Input -

Trigger Output -

Installing a Redundant Ground for 400 Hz Operation

one

The following customer-supplied hardware is required:

The following tools are required for installing the redundant ground:

Step 1.

one

Step 2.

Step 3.

Step 4.

The rear panel BNC connectors let you apply trigger signals to the
instrument as well as generate trigger signals from the instrument. This
also applies to the digital port.

instrument. The signal must have a minimum pulse width of two
microseconds. Trigger input signals are used by the Arb, Scope, and
Data Logger functions.

when a triggered event has occurred on the instrument. Trigger output
signals can be generated by the user-defined voltage or current Arb
functions.

Information on configuring external triggers is found in Appendix C. The
electrical characteristics are described in Appendix A.

Allows a negative-going external signal to trigger the

Generates a negative-going 10 microsecond pulse

Operation at 400 Hz requires the installation of a redundant ground from
the instrument chassis to earth ground. The redundant ground must be
permanently attached to the unit as well as to the earth ground point.

The following procedure describes how to make the permanent
connection at the unit using
The user must ensure the integrity and permanence of the connection at
the earth ground point.

 Ground wire (14/16 AWG)
 Uninsulated ring terminal for attaching wire to unit

(Tyco p/n 328976 or equivalent)

 Hardware for attaching wire to earth ground point

 5/8 inch nut driver

Use the nut driver and remove the hex nut (1) from only
connectors. Do not remove the lock washer located behind the hex nut.

Crimp the ring terminal (2) onto the end of the ground wire.

Place the ring terminal onto the threaded BNC connector. Make sure
that the lock washer (3) is in place before installing the ring terminal.

Tighten the hex nut onto the ring terminal.

of the two rear panel BNC connectors.

of the BNC

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45

2

1 2 3 4 5 6 7

I

+ -

1
3

5
6

4

Step 5.

Connecting the Digital Port

NOTE

1

23

Attach the other end of the redundant ground wire to a convenient earth

ground point.

It is good engineering practice to twist and shield all signal wires to and
from the digital connectors. If shielded wire is used, connect only one
end of the shield to chassis ground to prevent ground loops.

An 8-pin connector and a quick-disconnect connector plug are provided
for accessing the digital port functions. The connector plug accepts
wires sizes from AWG 14 to AWG 30. Wire sizes smaller than AWG 24
are not recommended. Disconnect the connector plug to make your wire
connections.

1. Insert wires

2. Tighten screws

3. Signal common

4. Digital I/O signals

5. FLT/INH signals

6. Output Couple
controls

Information on configuring the digital port is found in Appendix C. The
electrical characteristics are described in Appendix A.

2 Installation

Keysight N6705 User’s Guide

Connecting the Auxiliary Voltage Measurement Input

NOTE

CAUTION

VDC

+ −

1

+ −

2

AUX VOLTAGE MEASUREMENT

DC voltage

+

–

+/- 60 VDC max

+/- 60 VDC max

This information only applies to Keysight Model N6781A and N6785A.

The auxiliary voltage measurement input is located on the rear panel of
the Keysight N6705B. It is primarily used for battery voltage rundown
measurements, but it is also suitable for general purpose DC
measurements.

The auxiliary voltage measurement input is isolated from other
commons. It has a bandwidth of about 2 kHz. It has one input range: −20
to +20 VDC.

As shown in the following figure, auxiliary voltage measurements cannot
be made on test points that are at a greater potential than ±60 VDC from
ground. Refer to chapter 4 under “Auxiliary Voltage Measurements” for
more information.

When using the auxiliary voltage measurement input, no front panel
output terminal or rear panel input terminal may be more than ± 60
from any other terminal and chassis ground.

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47

Connecting to the Interfaces

LAN

GPIB/USB Interfaces

NOTE

GPIB

Utilities

I/O Configuration

GPIB/USB

The DC Power Analyzer supports GPIB, LAN, and USB interfaces. All
three interfaces are live at power-on. Connect your interface cable to the
appropriate interface connector. Information on configuring the
interfaces is found later in this chapter.

The front panel IO indicator comes on whenever there is activity on the
interfaces.
connected and configured.

The DC Power Analyzer provides Ethernet connection monitoring. With
Ethernet connection monitoring, the instrument’s LAN port is continually
monitored, and automatically reconfigured when the instrument is
unplugged for a minimum of 20 seconds and then reconnected to a
network.

For detailed information about GPIB and USB interface connections,
refer to the Keysight Technologies USB/LAN/GPIB Interfaces
Connectivity Guide, located on the Automation-Ready CD that is
shipped with your product.

The front panel

indicator comes on when the LAN port is

The following steps will help you quickly get started connecting your
instrument to the
figure illustrates a typical GPIB interface system.

1 If you have not already done so, install the Keysight IO Libraries

Suite from the Automation-Ready CD that is shipped with your
product.

2 If you do not have a GPIB interface card installed on your computer,

turn off your computer and install the GPIB card.

3 Connect your instrument to the GPIB interface card using a GPIB

interface cable.

4 Use the Connection Expert utility of the Keysight IO Libraries Suite

to configure the installed GPIB interface card’s parameters.

(General Purpose Interface Bus). The following

5 The DC Power Analyzer is shipped with its GPIB address set to 5. To

view or change the GPIB address, press the Menu key, select

, then

, then

.

2 Installation

Keysight N6705 User’s Guide

USB

GPIB/USB

To change the GPIB address, use the numeric keys to enter a value
in the GPIB address field. Valid addresses are from 0 to 30. Press

Enter to enter the value.

6 You can now use Interactive IO within the Connection Expert to

communicate with your instrument, or you can program your
instrument using the various programming environments.

The following steps will help you quickly get started connecting your
USB-enabled instrument to the
figure illustrates a typical USB interface system.

(Universal Serial Bus). The following

1 If you have not already done so, install the Keysight IO Libraries

Suite from the Automation-Ready CD that is shipped with your
product.

2 Connect the USB device port located on the back of your instrument

to the USB port on your computer.

3 With the Connection Expert utility of the Keysight IO Libraries Suite

running, the computer will automatically recognize the instrument.
This may take several seconds. When the instrument is recognized,
your computer will display the VISA alias, IDN string, and VISA
address. This information is located in the USB folder.

You can also view the instrument’s VISA address from the front
panel. Use the front panel menu to access the
described above. The VISA address is shown in the connect string
field.

4 You can now use Interactive IO within the Connection Expert to

communicate with your instrument, or you can program your
instrument using the various programming environments.

window as

48

Installation 2

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49

LAN Interface

NOTE

Connecting to a Site LAN

LAN

NOTE

NOTE

For detailed information about LAN interface connections, refer to the
Keysight Technologies USB/LAN/GPIB Interfaces Connectivity Guide,
located on the Automation-Ready CD that is shipped with your product.

The following steps will help you quickly get started connecting and
configuring your instrument on a local area network. The two types of
local area networks connections that are discussed in this section are
site networks and private networks.

A site LAN is a local area network in which LAN-enabled instruments and
computers are connected to the network through routers, hubs, and/or
switches. They are typically large, centrally-managed networks with
services such as DHCP and DNS servers.

1 If you have not already done so, install the Keysight IO Libraries

Suite from the Automation-Ready CD that is shipped with your
product.

2 Connect the instrument to the site LAN. The factory-shipped

instrument LAN settings are configured to automatically obtain an IP
address from the network using a DHCP server (DHCP is set On).
Note that this may take up to one minute. The DHCP server will
register the instrument’s hostname with the dynamic DNS server.
The hostname as well as the IP address can then be used to
communicate with the instrument. The front panel
come on when the LAN port has been configured.

If you need to manually configure any instrument LAN settings, refer to
“Configuring the LAN Parameters” later in this chapter for information
about configuring the LAN settings from the front panel of the
instrument.

3 Use the Connection Expert utility of the Keysight IO Libraries Suite

to add the N6705 DC Power Analyzer and verify a connection. To
add the instrument, you can request the Connection Expert to
discover the instrument. If the instrument cannot be found, add the
instrument using the instrument’s hostname or IP address.

If this does not work, refer to the chapter on “Troubleshooting
Guidelines” in the Keysight Technologies USB/LAN/GPIB Interfaces
Connectivity Guide.

indicator will

2 Installation

Keysight N6705 User’s Guide

Connecting to a Private LAN

NOTE

LAN

NOTE

4 You can now use Interactive IO within the Connection Expert to

communicate with your instrument, or you can program your
instrument using the various programming environments. You can
also use the Web browser on your computer to connect to the
instrument as described under “Connecting to the Web Server”.

A private LAN is a network in which LAN-enabled instruments and
computers are directly connected, and not connected to a site LAN.
They are typically small, with no centrally-managed resources.

1 If you have not already done so, install the Keysight IO Libraries

Suite from the Automation-Ready CD that is shipped with your
product.

2 Connect the instrument to the computer using a LAN crossover

cable. Alternatively, connect the computer and the instrument to a
standalone hub or switch using regular LAN cables.

Make sure your computer is configured to obtain its address from DHCP and
that NetBIOS over TCP/IP is enabled. Note that if the computer had been
connected to a site LAN, it may still retain previous network settings from
the site LAN. Wait one minute after disconnecting it from the site LAN before
connecting it to the private LAN. This allows Windows to sense that it is on a
different network and restart the network configuration. (Windows 98
requires you to manually release the settings.)

3 The factory-shipped instrument LAN settings are configured to

automatically obtain an IP address from a site network using a
DHCP server, then to automatically choose an IP address using
auto-IP if a DHCP server is not present. The instrument and
computer are each assigned an IP address from the block

169.254.nnn. Note that this may take up to one minute. The front
panel
configured.

4 Use the Connection Expert utility of the Keysight IO Libraries Suite

to add the N6705 DC Power Analyzer and verify a connection. To
add the instrument, you can request the Connection Expert to
discover the instrument. If the instrument cannot be found, add the
instrument using the instrument’s hostname or IP address.

indicator will come on when the LAN port has been

50

If this does not work, refer to the chapter on “Troubleshooting Guidelines” in
the Keysight Technologies USB/LAN/GPIB Interfaces Connectivity Guide.

Installation 2

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51

5 You can now use Interactive IO within the Connection Expert to

Viewing the Active LAN Status

Utilities

I/O Configuration

Active

LAN Status

Modifying the LAN Settings

Utilities

I/O Configuration

LAN Settings

NOTE

communicate with your instrument, or you can program your
instrument using the various programming environments. You can
also use the Web browser on your computer to connect to the
instrument as described under “Connecting to the Web Server”.

To view the currently active LAN settings, press the Menu key, scroll
down and select the

.

, then select

, then

Note that the currently active LAN settings for the IP Address, Subnet
Mask, and Default Gateway may be different from the settings specified
in the “Modify LAN Settings” window - depending on the configuration of
the network. If the settings are different, it is because the network has
automatically assigned its own settings.

As shipped from the factory, the DC Power Analyzer’s pre-configured
settings should work in most LAN environments. If you need to manually
configure these settings, press the Menu key, scroll down and select

Either the Restart LAN button must be selected, or the DC Power
Analyzer must be rebooted for any LAN parameter modifications to take
effect.

, then

, then

.

You can configure the following items in the LAN Settings window:

2 Installation

Keysight N6705 User’s Guide

Get IP

Address

Automatically

by entering values in the following three fields.

IP Address

by periods. Each decimal number ranges from 0 through 255.

Subnet Mask

different subnet, all packets must be sent to the Default Gateway.

Default

Gateway

indicates that no default gateway is defined.

Host Name

an example of a hostname.

Use Dynamic

DNS naming

Use NetBIOS

naming

Domain

Name

right.

With this box checked, the instrument will first try to obtain an IP
address from a DHCP server. If a DHCP server is found, the DHCP
server will assign an IP address, Subnet Mask, and Default Gateway
to the instrument. If a DHCP server is unavailable, the instrument
will try to obtain an IP address using AutoIP. AutoIP automatically
assigns an IP address, Subnet Mask, and Default Gateway on
networks that do not have a DHCP server.

With this box unchecked, you can configure the addresses manually

This value is the Internet Protocol (IP) address of the instrument. An
IP address is required for all IP and TCP/IP communications with the
instrument. An IP Address consists of 4 decimal numbers separated

This value is used to enable the instrument to determine if a client IP
address is on the same local subnet. When a client IP address is on a

This value is the IP Address of the default gateway that allows the
instrument to communicate with systems that are not on the local
subnet, as determined by the subnet mask setting. A value of 0.0.0.0

This field registers the supplied name with the selected naming
service. If the field is left blank, no name is registered. A hostname
may contain upper and lower case letters, numbers and dashes(-).
The maximum length is 15 characters. Use the numeric/alpha keys to
enter letters or numbers. Repeatedly pressing a key cycles through
the list of choices. After a short delay the cursor automatically moves
to the right.

Each DC Power Analyzer is shipped with a default hostname with the
format: A-modelnumber-serialnumber, where modelnumber is the
mainframe’s 6-character model number (e.g. N6705B), and
serialnumber is the last five characters of the 10-character
mainframe serial number located on the label on the top of the unit
(e.g. 45678 if the serial number is MY12345678). A-N6705B-45678 is

Registers the hostname using the Dynamic DNS naming system.

Registers the hostname using the RFC NetBIOS naming protocol.

Registers the Internet domain for the instrument. This is required if
your DNS server requires an instrument to register not only the
hostname, but also the domain name. The Domain must start with a
letter and may contain upper and lower case letters, numbers,
dashes(-) and dots(.). Use the numeric/alpha keys to enter letters or
numbers. Repeatedly pressing a key cycles through the list of
choices. After a short delay the cursor automatically moves to the

52

Installation 2

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53

Obtain DNS

server from

DHCP

Get IP Address Automatically.

DNS server

Enable TCP

Keepalive

Timeout

bandwidth. Allowed values: 720 - 99999 seconds.

Default

Settings

Restart LAN

DNS is an internet service that translates domain names into IP
addresses. It is also needed for the instrument to find and display its
hostname assigned by the network.

Check this item to obtain the

DNS server address from DHCP. You must have previously checked

This value is the address of the DNS server. It is used if you are not
using DHCP or if you need to connect to a specific DNS server.

Check the Enable box to enable the TCP keepalive function. The
instrument uses the TCP keepalive timer to determine if a client is
still reachable. If there has been no activity on the connection after
the specified time, the instrument will send keepalive probes to the
client to determine if it is still alive. If not, the connection will be
marked as down or "dropped." The instrument will release any
resources that were allocated to that client.

This is the delay in seconds before TCP keepalive probes will be sent
to the client. It is recommended that the largest value be used that
still meets the application's need for unreachable client detection.
Smaller keepalive time-out values will generate more keepalive
probes (network traffic), using more of the available network

Resets the LAN settings to the factory-shipped state. These settings are
listed at the end of chapter 1.

Restarts networking to use the modified configuration settings.

2 Installation

Keysight N6705 User’s Guide

Communicating Over the LAN

Using the Web Server

two

NOTE

Your Keysight N6705 DC Power Analyzer has a built-in Web server that
lets you control it directly from an internet browser on your computer.
Up to
connections, performance will be reduced.

With the Web server, you can access the front panel control functions
including the LAN configuration parameters. This is a convenient way to
communicate with the DC Power Analyzer without using I/O libraries or
drivers.

The built-in Web server only operates over the LAN interface. It requires
Internet Explorer 7+ or Firefox 2+. You also need the Java (Sun) Plug-in.
This is included in the Java Runtime Environment. Refer to Sun
Microsystem’s website. If you are using Internet Explorer 7, open a
separate browser window for each connection.

The Web server is enabled when shipped. To launch the Web server:

simultaneous connections are allowed. With additional

1 Open the internet browser on your computer.
2 Enter the instrument’s hostname or IP address into the browser’s

Address field to launch the Web server. The following home page
will appear:

3 Click on the Browser Web Control button in the navigation bar on

the left to begin controlling your instrument.

54

4 For additional help about any page, click Help with this Page.

If desired, you can control access to the Web server using password
protection. As shipped from the factory, no password is set. To set a
password, click on the View & Modify Configuration button. Refer to the
on-line help for additional information about setting a password.

Installation 2

Keysight N6705 User’s Guide

55

Using Telnet

Using Sockets

NOTE

four

data socket

control socket

The Telnet utility (as well as sockets), is another way to communicate
with the DC Power Analyzer without using I/O libraries or drivers. In all
cases, you must first establish a LAN connection from your computer to
the DC Power Analyzer as previously discussed.

In an MS-DOS Command Prompt box type: telnet hostname 5024 where
hostname is the N6705 hostname or IP address, and 5024 is the
instrument’s telnet port. You should get a Telnet session box with a title
indicating that you are connected to the DC Power Analyzer. Type the
SCPI commands at the prompt.

Keysight N6705 mainframes allow any combination of up to
simultaneous data socket, control socket, and telnet connections to be
made.

Keysight instruments have standardized on using port 5025 for SCPI
socket services. A
receive ASCII/SCPI commands, queries, and query responses. All
commands must be terminated with a newline for the message to be
parsed. All query responses will also be terminated with a newline.

The socket programming interface also allows a
connection. The control socket can be used by a client to send device
clear and to receive service requests. Unlike the data socket, which uses
a fixed port number, the port number for a control socket varies and
must be obtained by sending the following SCPI query to the data
socket: SYSTem:COMMunicate:TCPip:CONTrol?

After the port number is obtained, a control socket connection can be
opened. As with the data socket, all commands to the control socket
must be terminated with a newline, and all query responses returned on
the control socket will be terminated with a newline.

To send a device clear, send the string “DCL” to the control socket.
When the DC Power Analyzer has finished performing the device clear it
echoes the string “DCL” back to the control socket.

on this port can be used to send and

Service requests are enabled for control sockets using the Service
Request Enable register. Once service requests have been enabled, the
client program listens on the control connection. When SRQ goes true
the instrument will send the string “SRQ +nn” to the client. The “nn” is
the status byte value, which the client can use to determine the source
of the service request.

Keysight N6705 DC Power Analyzer

3
Using the Source Functions

NOTE

User’s Guide

Turning the Unit On ........................................................................ 58

Using the Power Supply ................................................................. 60

Using the Arbitrary Waveform Generator ...................................... 75

This chapter contains examples on how to operate your DC Power
Analyzer. The examples provided show you how to use the:

 Power supply function
 Arbitrary waveform generator

Equivalent SCPI commands to program a specific function are included
at the end of each topic. However some functions such as the front
panel Scope View, Data Logger View, and some Administrative functions
do not have equivalent SCPI commands. Appendix B lists all of the SCPI
commands that can be used to program the instrument.

For complete details on using the SCPI commands, refer to the
Programmer’s Reference Help file included on the Keysight N6705
Product Reference CD. This CD-ROM is shipped along with your
instrument.

57

3 Using the Source Functions

Keysight N6705 User’s Guide

Turning the Unit On

NOTE

View the Error Log

Error

Utilities

Error Log

After you have connected the line cord, turn the unit on using the Line
switch. The front panel display lights up after a few seconds. When the
front panel Meter View appears, use the front panel knobs to enter
voltage and current values. Output 1 is selected by default.

Press one of the four On keys to enable an individual output. In Meter
View the DC Power Analyzer continuously measures and displays the
output voltage and current of each output.

A power-on self-test occurs automatically when you turn the unit on.
This test assures you that the instrument is operational. If the self-test
fails, the front panel will display any errors.

The front panel
operating problems occur with your instrument. To display the error list,
press the Menu key, scroll and select

 Errors are stored in the order they are received. The error at the end

of the list is the most recent error.

 If there are more errors than can fit in the queue, the last error

stored is replaced with -350,"Error queue overflow". No more errors
are stored until you remove errors from the queue. If there are no
errors, the instrument responds with +0,"No error".

indicator comes on if self-test fails or if other

, then

.

58

 Except for self-test errors, all errors are cleared when you exit the

Error Log menu or when power is cycled.

Using the Source Functions 3

Keysight N6705 User’s Guide

59

If you suspect that there is a problem with the DC Power Analyzer, refer

View Output Ratings

From the remote interface:

to the troubleshooting section in the N6705 Service Guide. The Service
Guide is included as part of the optional Manual Set (Option 0L1). An
electronic copy of the N6705 Service Guide is also included on the
N6705 Product Reference CD-ROM.

Press Meter View to return to the meter view.

You can quickly view the output ratings, model numbers and options of
all power modules installed in your instrument. You can also view the
mainframe serial number and firmware revisions. Press the Settings key
and then press the Properties key. The Power Supply Ratings window
will appear.

Press Meter View to return to the meter view.

To return the model number, serial number, and firmware revisions of
the mainframe:

*IDN?

To return the model number, serial number, installed options, voltage,
current and power rating of the module installed in the specified channel
location:

SYST:CHAN:MOD? (@1)
SYST:CHAN:OPT? (@1)
SYST:CHAN:SER? (@1)

3 Using the Source Functions

Keysight N6705 User’s Guide

Using the Power Supply

Controlling the Outputs

NOTE

Step 1 – Select an output:

Step 2 – Set the output voltage and current:

Push

Voltage

Current

The figures on the right apply to Keysight Models N678xA SMU.

Press one of the Select Output keys to select an output to control. The lit
key identifies the selected output. All subsequent output-specific front
panel commands are sent to the selected output.

Turn the Voltage and Current knobs. The output voltage or current
setting changes when they are turned. These knobs are active in Meter
View, Scope View, and Data Logger mode.

the voltage and current knobs to access a
pop-up dialog that lets you: 1. Lock/Unlock the
knobs. 2. Select limit parameters or select limit
tracking on Keysight N678xA SMU and N6783A.

You can also enter the voltage and current values directly in the numeric
entry fields (the Set fields) in the Meter-view display. Use the navigation

keys to select the field; use the numeric entry keys to enter the value.

The value becomes active when you press Enter.

Lastly, you can press the Settings key to access the Source Settings
window. Use the navigation keys to highlight the
fields. Then enter the voltage and current values with the numeric keys.
You can use the Voltage and Current knobs to adjust the values in the
Voltage and Current fields. Press Enter to enter the value.

or

60

Using the Source Functions 3

Keysight N6705 User’s Guide

61

Step 3 – Enable the output:

NOTE

Step 4 – View the output voltage and current:

From the remote interface:

all

and

Press the color-coded On key to enable an individual output. When an
output is on, the On key for that output is lit. When an output is Off, the
On key is not lit. The All Outputs On and Off keys turn all outputs on or
off simultaneously.

The state of a disabled output (output off) is a condition of zero output
voltage and zero source current.

The red Emergency Stop key turns all outputs off immediately without
any output off delays.

Select Meter View to view the output voltage and current. When an
output is enabled, the front panel meters continuously measure and
display the output voltage and current.

A channel parameter is required with each SCPI command to select an
output. For example, (@1) selects output 1, (@2,4) selects output 2 and
4, and (@1:4) selects outputs 1 through 4. The output list must be
preceded with an @ symbol and be enclosed in parentheses ().

To set only output 1 to 10.02 V and 1 A:

VOLT 10.02,(@1)

CURR 1,(@1)

To set the output current limit to 1 A for Keysight Models N678xA SMU
and N6783A:

CURR:LIM 1,(@1)

To set the output voltage of

VOLT 10.02,(@1:4)

To enable only output 1:

OUTP ON,(@1)

To enable output 1

OUTP ON,(@1,3)

To measure the output voltage and current of output 1:

outputs to 10 V:

output 3:

MEAS:VOLT? (@1)
MEAS:CURR? (@1)

3 Using the Source Functions

Keysight N6705 User’s Guide

Additional Source Settings

Voltage or Current Range

Range

Turn-on Pref

Turn-on Pref

Reverse Polarity

Reverse Polarity

From the remote interface:

In addition to setting the output voltage and current as previously
discussed, you can program a number of additional output functions.
Press the Settings key to access the Source Settings window.

select a lower range if you need better output resolution. Use the
navigation keys to highlight either the voltage or current
Press the Enter key to access the dropdown range list. Use the
navigation keys to select the desired output range.

Models N6761A, N6762A. This specifies the preferred mode for output
on/off transitions. It allows output state transitions to be optimized for
either constant voltage or constant current operation. In the
drop-down list, select either Voltage or Current. Selecting Voltage
minimizes output on/off voltage overshoots in constant voltage operation.
Selecting Current minimizes output on/off current overshoots in constant
current operation.

760 installed. Check
terminals and the sense terminals. Uncheck to return the relay polarity to
normal. The output is briefly turned off while the output and sense terminal
polarities are switched. Refer to “Power Module Features” in chapter 1 for
Option 760 availability and current limitations. When the output and sense
polarities are reversed, the following symbol appears on the front panel
display:

- The turn-on preference function only applies to Keysight

– This control only applies if the power module has Option

- For outputs with multiple ranges, you can

to reverse the polarity of the output

field.

62

To select a lower voltage or current range on output 1, program a value
that falls within the range:

VOLT:RANG 5,(@1)
CURR:RANG 1,(@1)

To set the Keysight N6761A turn on preference to current priority:

OUTP:PMOD CURR,(@1)

To reverse the relay polarity on units with Option 760:

OUTP:REL:POL REV,(@1)

To return the relay polarity to normal:

OUTP:REL:POL NORM,(@1)

Using the Source Functions 3

Keysight N6705 User’s Guide

63

Keysight N678xA SMU Emulation Settings

NOTE

Emulating

NOTE

Information about the Voltage Measure Only and Current Measure Only modes is

4-Quadrant Power Supply

Operating in

NOTE

The Source Settings window lets you access the specialized operating modes
of the Keysight Models N678xA SMU when these power modules are installed.

The
modes of the Keysight Models N678xA SMU. Use the navigation keys to
select one of the emulating modes.

discussed in chapter 4.

dropdown list lets you access the specialized operating

4-quadrant operation is only available on Keysight Model N6784A.
Operation is allowed in all four output quadrants. Refer to Chapter 6
under “Priority Mode Operation” for more information. The following
figures show the 4-quadrant settings.

voltage priority the output is controlled by a bi-polar constant voltage
feedback loop, which maintains the output voltage at its positive or
negative setting. In current priority the output is controlled by a bi-polar
constant current feedback loop, which maintains the output source or
sink current at its programmed setting.

When switching between Voltage Priority and Current Priority, the
output is turned off and the output settings revert to their Power-on or
RST values. Refer to chapter 6 for a detailed description of voltage and
current priority.

– selects either Voltage Priority or Current Priority. In

3 Using the Source Functions

Keysight N6705 User’s Guide

Voltage

Current

Range

Voltage Limit

Current Limit

Tracking Limits

2-Quadrant Power Supply

Operating in

Resistance -

1-Quadrant Power Supply (unipolar)

Depending on the priority mode, you can specify either the output

appropriate output range. You can also specify a

In voltage priority mode, the output voltage remains at its programmed
setting as long as the load current is within the positive or negative limit.
In current priority mode, the output current remains at its programmed
setting as long as the output voltage is within the positive or negative
limit.

or output

, which limits the selected parameter at the specified value.

setting. The

function lets you select the

or

positive voltage or current limit setting. By default, the negative limit will
track the positive limit value. Un-check this box if you want to program
asymmetrical positive and negative limits. If asymmetrical limits are
programmed and tracking is turned on, the negative value is changed to
track the positive limit.

lets the negative voltage or current limit track the

This operating mode is restricted to two quadrants (+V/+I and +V/-I). The
following figures show the 2-quadrant settings.

other settings in 2-quadrant mode are the same as the settings in 4­quadrant mode except that you cannot program negative voltages or
negative voltage limits. Because of this, voltage tracking is not available
in Current Priority mode. Note that the negative voltage limit is fixed at –
10 mV.

– selects either Voltage Priority or Current Priority. The

64

N6785A. Output resistance programming is primarily used in battery
emulation applications, and only applies in Voltage Priority mode. Values
are programmed in Ohms, from –40 mΩ to +1 Ω.

This is only available on Keysight Models N6781A and

This mode emulates a typical one quadrant or unipolar power supply
with limited down-programming. The following figures show the 1­quadrant settings. The Voltage Priority and Current Priority selections
determine which controls are displayed.

In 1-quadrant mode you cannot program negative voltages, negative
currents, negative voltage limits, or negative current limits. Because of
this, voltage tracking and current tracking are not available. Note that
there is limited 2-quadrant operation with the negative current limit being
fixed at 10% to 20% of the output current rating.

Using the Source Functions 3

Keysight N6705 User’s Guide

65

Resistance -

Battery Emulator/Battery Charger

N6785A. Output resistance programming is primarily used in battery
emulation applications, and only applies in Voltage Priority mode. Values
are programmed in Ohms, from – 40 mΩ to + 1 Ω.

This is only available on Keysight Models N6781A and

Battery emulator and battery charger modes are only available on
Keysight Models N6781A and N6785A. A battery emulator imitates a
battery’s charging and discharging functions. A battery charger imitates
a battery charger; it cannot sink current like a battery. The following
figures show the Battery emulator/Battery charger settings.

In Battery Emulator mode you can specify the battery voltage and range
as well as the + and – current limits. The output resistance is
programmable, from – 40 mΩ to + 1 Ω. Voltage Priority mode is locked.
The voltage setting is limited to positive values. The + and – current limits
are set to their maximum values. The – current limit setting sets the
current limit when the battery is being charged.

In Battery Charger mode, you can specify the charge voltage and range
as well as the positive current limit. Voltage Priority mode is locked.
Because the battery charger can only source current, the voltage and
current settings are limited to positive values.

3 Using the Source Functions

Keysight N6705 User’s Guide

CC Load/CV Load

From the remote interface:

The CC Load emulates a constant-current load. The CV Load emulates a
constant-voltage load. The figures below show the CC and CV load
settings.

In CC load mode you can specify the input Current and Range as well as
the + Voltage Limit. Current Priority mode is locked. Remember to set
the input current to a negative value. The + Voltage Limit should
normally be set to its maximum value. The – Voltage limit is not
programmable. In Meter mode, the measurement polarities and current
settings are shown as negative values.

In CV load mode you can specify the input Voltage and Range as well as
the – Current Limit. Voltage Priority mode is locked. Set the input
voltage to a positive value. The – Current Limit should normally be set to
its maximum negative value. The + Current Limit is not programmable. In
Meter mode, the measurement polarities and current settings are shown
as negative values.

To specify the 4-quadrant, 2-quadrant, or 1-quadrant power supply
emulation setting:

EMUL PS4Q,(@1)
EMUL PS2Q,(@1)
EMUL PS1Q,(@1)

To set the voltage priority mode:

FUNC VOLT,(@1)

To set the output voltage to 5 V and the low voltage range:

VOLT 5,(@1)

RANG 6,(@1)

To set the positive current limit of output 1 to 1 A:

CURR:LIM 1,(@1)

66

To set the negative current limit, you must first turn limit coupling
(tracking) off. Then set the negative current limit to 0.5 A:

CURR:LIM:COUP OFF,(@1)
CURR:LIM:NEG 0.5,(@1)

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67

Configuring a Turn-On/Turn-Off Sequence

NOTE

Step 1 – Set the output voltage and current of the output
channels:

Step 2 – Configure the turn-on turn-off delays:

On Delays

Off Delays

On

Delays

Output Coupling

Turn-on and turn-off delays control the turn-on and turn-off timing of
the outputs in relation to each other.

You can also synchronize Output On/Off delays across multiple
mainframes. Refer to Appendix C under “Output Couple Controls” for
further information.

Refer to steps 1 and 2 under “Controlling the Outputs” and set the
output voltage and current values of all outputs that will be sequenced.

Press the Settings key twice to access the Output On/Off Delays
window. Enter the
participate in the output on/off delay sequence. Values can range from 0
to 1023 seconds.

and

for all outputs that will

All power modules have an internal turn-on delay that applies from the
time that the command to turn on the output is received until the output
actually turns on. This turn-on delay is automatically added to the

values. The turn-on delay does not apply when outputs turn off.

To view the delay, select the

Normally, the firmware automatically calculates the delay offset based
on the longest minimum turn-on delay of the installed power modules.
However, if you will be excluding some outputs from participating in an
output on/off delay sequence as described Step 3, the delay offset may
be different based on the outputs that you will actually be sequencing.
The minimum turn-on delays of the power modules are documented in
the Keysight N6700 Modular Power System Family Specifications Guide.

button.

3 Using the Source Functions

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Step 3 – Coupling selected outputs:

NOTE

Output

Coupling

Coupled Channels,

Mode

Auto

Delay Offset

Manual

Delay Offset

Max delay offset for this frame

Step 4 – Use the All Outputs On and Off keys:

All Outputs

All Outputs

NOTE

outputs on or off, whether they

This step is only required if you will be excluding some outputs from
participating in an output on/off delay sequence, or if you are coupling
multiple mainframes, If all four outputs on a single mainframe are to be
used in the sequence, you can skip this step.

In the Output On/Off Delays window, navigate to and select the

Under
Outputs excluded from an output on/off delay sequence can be put to
other uses. Turning the output on or off on any coupled output will cause
all coupled outputs to turn on or off according to their user-programmed
delays.

automatically calculated by the firmware based on the outputs that are
coupled. This is displayed in the
a different delay offset, change the Mode

longer turn-on delays than the automatically calculated delay offset.
This is useful if you are sequencing turn-on/turn-off delays across
multiple mainframes as discussed in Appendix C under “Output Couple
Controls”. Also, if you are using the scope to view the output sequence,
you may choose longer turn-on delays to make the internal delay offset
line up with the grid on the display. Note however, that if you program a
shorter delay than the automatic delay offset, you may experience
improper synchronization across all outputs.

Button.

– If the Mode setting is set to

– Manually specifying a delay offset lets you configure

select the outputs that will be coupled.

, the delay offset is

field. To manually program

setting to

.

68

Te
offset required for all the power modules that are installed in the DC
Power Analyzer.

Once output delays have been set, use the
the On delay sequence. Use the
sequence.

The All Outputs On/Off keys will turn ALL
are configured to participate in an output on/off delay sequence or not.

field displays the maximum delay

Off key to start the Off delay

On key to start

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69

From the remote interface:

To program turn-on and turn-off delays for channels 1 through 4:

OUTP:DEL:RISE .01,(@1)
OUTP:DEL:RISE .02,(@2)
OUTP:DEL:RISE .03,(@3)
OUTP:DEL:RISE .04,(@4)
OUTP:DEL:FALL .04,(@1)
OUTP:DEL:FALL .03,(@2)
OUTP:DEL:FALL .02,(@3)
OUTP:DEL:FALL .01,(@4)

To only include outputs 1 and 2 in a sequence and specify a different
delay offset:

OUTP:COUP:CHAN 1,2
OUTP:COUP:DOFF:MODE MAN
OUTP:COUP:DOFF .050

To query the delay offset of the slowest power module in the mainframe
(the maximum delay offset) in seconds:

OUTP:COUP:MAX:DOFF?

To turn on two coupled outputs in a sequence:

OUTP ON,(@1:2)

3 Using the Source Functions

Keysight N6705 User’s Guide

Configuring Advanced Properties

Advanced

Advanced

Voltage Slew

Voltage Slew

Maximum

Current Slew

Current Slew

Maximum

Sense

Local

4-Wire

Power Limit

Power Limit

Properties window. Press the Settings key to access the Source Settings
window. Navigate to and select

voltage changes to a new setting. To program a voltage slew rate, enter
the rate (V/s) in the
fastest rate. For Keysight Models N678xA SMU, the voltage slew control
is only avilable in Voltage priority mode.

Note that the maximum slew rate is limited by the analog performance of
the output circuit. The minimum slew rate is model-dependent and is a
function of the full-scale voltage range. You can query the minimum
voltage slew rate using the VOLT:SLEW? query.

operating in Current priority mode. The current slew rate determines the
rate at which the current changes to a new setting. To program a
current slew rate, enter the rate (A/s) in the

button - Advanced properties are configured in the Advanced

- The voltage slew rate determines the rate at which the

– This is only available on Keysight Models N678xA SMU

to program the fastest rate.

field. Check

.

to program the

field. Check

Note that the maximum slew rate is limited by the analog performance of
the output circuit. The minimum slew rate is model-dependent and is a
function of the full-scale current range. You can query the minimum
current slew rate using the CURR:SLEW? query.

- The default sense setting is
connected directly to the output terminals. If you are using remote
voltage sensing as explained in chapter 2, you must disconnect the
sense terminals from the output terminals. Use the navigation keys and
select the Sense dropdown list. Selecting the
the sense terminals from the output terminals. This lets you use remote
voltage sensing.

power is available from all installed power modules. However, it is
possible to configure a mainframe in which the combined power module
ratings exceed the 600 W power rating of the mainframe. The power
limit field lets you reduce the power that can be sourced from an
individual output, thereby preventing the combined power from
exceeding the mainframe’s power rating.

To set a lower power limit, select the
power limit value in Watts. Refer to chapter 6 under “Power Limit
Operation” for more information.

- For the majority of DC Power Analyzer configurations, full

, where the sense terminals are

item disconnects

Field and enter the

70

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71

Output Voltage Bandwidth

Output Turn-Off Mode

Low impedance

High

impedance

From the remote interface:

N678xA SMU. Output voltage bandwidth settings allow you to optimize
output response time with capacitive loads. Refer to Chapter 6 under
“Output Bandwidth” for more information.

N678xA SMU operating in Voltage priority mode. It lets you specify high
impedance or low impedance mode at output on/off.

output is programmed to the set value. At turn-off the output is first
programmed to zero, after which the output relays are opened.

which the output relays are closed. At turn-off the output relays are
opened while the output remains at its set value. This reduces current
pulses that may be undesirable in some applications.

- At turn-on the output relays are closed after which the

– At turn-on the output is programmed to the set value after

– This is only available on Keysight Models

– This is only available on Keysight Models

To set the voltage slew rate to 5 Volt/second:

VOLT:SLEW 5,(@1)

To set the fastest voltage slew rate:

VOLT:SLEW INF,(@1)

To query the minimum slew rate:

VOLT:SLEW? MIN,(@1)

To set the current slew rate to 1 Amp/second:

CURR:SLEW 1,(@1)

To set the front panel sense terminals to local sensing:

VOLT:SENS:SOUR INT,(@1)

To set the front panel sense terminals to remote sensing:

VOLT:SENS:SOUR EXT,(@1)

To query the setting of the front panel sense terminals:

VOLT:SENS:SOUR? (@1)

The query returns INT if the terminals are set to local sensing,
and EXT if the terminals are set to remote sensing.

To set the power limit of outputs 1 and 2 to 50 W:

POW:LIM 50,(@1,2)

To set the power limit of outputs 1 and 2 to their maximum settings:

POW:LIM MAX,(@1,2)

To set the output voltage bandwidth of output 1 to the default setting:

VOLT:BWID LOW,(@1)

To set the output turn-off mode to the high impedance setting:

OUTP:TMOD HIGHZ,(@1)

3 Using the Source Functions

Keysight N6705 User’s Guide

Configuring Protection Functions

Protection

Over Voltage Protection

Level

Level

Delay

Over Current Protection

Enable OCP

Delay

Start

All Outputs

Status

OV

OV−

and N6783A-BAT/MFG.

OC

Protection functions are configured in the Protection Configuration
window. Press the Settings key to access the Source Settings window.
Navigate to and select

. Then press Enter.

- Over-voltage protection disables the output if
the output voltage reaches the OVP level. To set the over-voltage
protection, enter an over-voltage value in the +

field.

For Keysight Models N678xA SMU, the OVP circuit senses at the 4-wire
sense terminals rather than at the output terminals. This allows for more
precise over-voltage monitoring directly at the load. Refer to “Over­Voltage Protection Considerations” in chapter 2 for a description of the
OVP function. These models also have negative voltage protection,
which disables the output if negative voltages are detected. Note that
for Keysight Model N6784A, you can program a negative over-voltage
protection level. Enter the value in the -

field.

For Keysight Models N6783A, you can specify a delay to prevent
momentary over-voltage excursions from tripping the over-voltage
protection. Enter the value in the over-voltage

field. These models
also have negative voltage protection, which disables the output if
negative voltages are detected.

- With over-current protection enabled, the DC
Power Analyzer disables the output if the output current reaches the
current limit setting, which causes a transition from CV to CC mode. To
enable over-current protection, check the

Note that you can also specify a

to prevent momentary CV-to-CC

box.

status changes from tripping the over-current protection. The delay can
be programmed from 0 to 0.255 seconds. You can specify if the

of
the delay is initiated by any transition into CC mode, or only at the end
of a settings change in voltage, current, or output state. See chapter 6
under “CC Mode Delay” for more information.

72

– the

field shows the status of all outputs. This
indicator also appears in the lower left corner of each output in Meter
View. When a protection function trips the DC Power Analyzer disables
the affected output and the status indicator shows which protection
function was activated.

An over-voltage protection.

A negative voltage protection. Only applies to Keysight N678xA SMU

An over-current protection

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73

OT

Osc

PF

CP+

CP−

Prot

Inh

Clear All Outputs

Clear All Outputs

Enable Output Coupling

Advanced

Advanced

From the remote interface:

An over-temperature protection.

An oscillation protection. Only applies to Keysight N678xA SMU.

A power-fail condition on the AC mains.

A positive power limit condition. See chapter 6 for further information.

A negative power limit condition. See chapter 6 for further information.

A coupled protection signal, or an expired watchdog timer.

An Inhibit input signal. See Appendix C for further information.

condition that caused the protection fault. Then select

- To clear the protection function, first remove that

This clears the protection function and returns the output to its previous
operating state.

– Checking this box lets you couple the outputs
so that when a protection fault occurs on one output, ALL outputs will
be turned off.

Advanced Protection window. Navigate to and select

button – Advanced protection properties are configured in the

.

To program the OVP level for outputs 1 and 2 to 10 V:

VOLT:PROT 10,(@1,2)

To enable OCP for outputs 1 and 2:

CURR:PROT:STAT 1,(@1,2)

To specify a 10 millisecond delay for the OCP:

CURR:PROT:DEL.01,(@1,2)

To start the delay timer by ANY output transition into CC mode:

CURR:PROT:DEL:STAR CCTR, (@1,2)

.

To start the timer by a settings change in voltage current or output:

CURR:PROT:DEL:STAR SCH, (@1,2)

To enable output protection coupling:

OUTP:PROT:COUP ON

To clear an output protection fault on output 1:

OUTP:PROT:CLE (@1)

3 Using the Source Functions

Keysight N6705 User’s Guide

Configuring Advanced Protection

Advanced

All Outputs

Inhibit

Watchdog

Prot

Enable Oscillation Protection

Osc

From the remote interface:

Press the Settings key to access the Source Settings window. Navigate
to and select Protection. Navigate to and select

.

pin 3) on the rear panel to act as an external protection shutdown signal.
The behavior of this signal can be set to either Latched or Live (non­latched). Off disables the remote inhibit. Refer to Appendix C for further
information.

The output watchdog timer causes all outputs to go into protection
mode if there is no SCPI I/O activity on the remote interfaces (USB, LAN,
GPIB) within the user-specified time period. Note that the watchdog
timer function is NOT reset by activity on the front panel or when using
the Web server – the outputs will still shut down after the time period
has elapsed.

After the time period has expired, the outputs will be disabled, but the
programmed output state is not changed. This condition is annunciated
on the front panel by the
to 3600 seconds in 1 second increments.

N678xA SMU. If open sense leads or capacitive loads outside the allowable
range cause the output to oscillate, the oscillation protection function
detects the oscillation and latches the output off. The condition is
annunciated on the front panel by the

– for all outputs you can program the

– for all outputs you can program a watchdog timer function.

status. The delay is programmable from 1

- This is only available on Keysight Models

status.

input (digital

74

To program the INH signal to act as an external shutdown:

DIG:PIN3:FUNC INH

To configure the pin polarity for pin 3:

DIG:PIN3:POL POS

To enable the watchdog timer function and set the delay to 15 minutes
(900 seconds):

OUTP:PROT:WDOG ON
OUTP:PROT:WDOG:DEL 900

To enable output oscillation protection:

OUTP:PROT:OSC ON, (@1)

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75

Using the Arbitrary Waveform Generator

Each output on DC Power Analyzer can be modulated by the power
module’s built-in arbitrary waveform generator function. This allows the
output to act as a DC bias transient generator or an arbitrary waveform
generator. The maximum bandwidth is based on the type of power
module that is installed. This is documented in the Keysight N6700
Modular Power System Family Specifications Guide. See the note in the
beginning of Appendix A.

The arbitrary waveform generator has a variable dwell period, where
each point in the waveform is defined by the voltage or current setting
along with the dwell time or duration to stay at that setting. Waveforms
can be generated by specifying only a small number of points. For
example, a pulse would only take three points to define it. However, sine,
ramp, trapezoid, and exponential waveforms have 100 points assigned to
the portion of their waveform that continuously changes. Constant-dwell
waveforms can have up to 65,535 points assigned to them.

Each waveform can be set to repeat continuously or repeat a specific
number of times. For example, to generate a pulse train of 10 identical
pulses, you can program the parameters for one pulse and then specify
that you want it to repeat 10 times.

For the user-defined waveforms, you can specify up to 511 step-points
of voltage or current. You can specify a different dwell time for each of
the 511 step-points. The output will step through the user-defined
values, staying at each point for the programmed dwell time, and then
moving on to the next point.

You can also combine a number of individual arbitrary waveforms into an
Arb sequence, as long as the total number of points of all waveforms
does not exceed 511 points.

The following sections provide examples of how to configure a Pulse Arb,
a User-defined Arb, a Constant-dwell Arb, and an Arb Sequence, which
is a combination of Arbs combined in a sequence.

3 Using the Source Functions

Keysight N6705 User’s Guide

Configuring Pulse Arbs

NOTE

Step 1 – Select a Voltage or Current Pulse Arb:

Voltage

Current

Pulse

Step 2 – Configure the Pulse Properties:

Arb Properties

V0 or

I0). Enter the amplitude of the pulse (V1 or I1).

Edit Points

The basic steps in this example are the same steps used to program the
Sine, Step, Ramp, Staircase, and Exponential Arbs. The only difference
is in the individual Arb parameters. These differences are described in
the reference section at the end of this chapter.

Press the Arb key twice or press the Arb key and then Properties to
access the Arb Selection window.

In the Arb Type dropdown menu, select either a
type. Then navigate to and select the

output type.

or

Arb

To configure the parameters of the Pulse, press the Properties key or
select the

Enter the voltage or current values for the level before and after the
pulse (

Enter the time parameters: t0 = the time before the pulse; t1 = the time of

the pulse; t

Specify what happens when the pulse completes – select whether the
output returns to the DC value that was in effect before the pulse
started, or whether the output should remain at the last Arb value.

= the time after the pulse.

2

button.

76

Specify if the Arb should repeat, either continuously or only for a
specified repeat count. A repeat count of 1 runs the Arb once.

Select

to convert the parameters to a User-defined Arb.

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77

Step 3 – Select the Trigger Source:

Step 4 – Preview and Run the Arb:

From the remote interface:

To specify a Trigger source for the arbitrary waveforms, press the Arb
key, then select the Trigger Source field. The same trigger source will be
used to trigger all of the arbitrary waveforms.

Arb Run/Stop key selects the front panel Arb Run/Stop key as the
trigger source. BNC Trigger In selects the rear trigger input BNC
connector as the trigger source. Remote command selects a remote
interface command as the trigger source.

The Arb Preview dialog shown above provides a preview of the Pulse
waveform that will be run on output 1.

Select Meter View or Scope View to display the Arb.

Press the Output 1 On key to enable the output.

Press the Arb Run/Stop key to run the Arb.

The following commands select, program, and trigger a voltage Pulse on
output 1:

ARB:FUNC:TYPE VOLT,(@1)
ARB:FUNC:SHAP PULS,(@1)
ARB:VOLT:PULS:STAR 0,(@1)
ARB:VOLT:PULS:TOP 10,(@1)
ARB:VOLT:PULS:STAR:TIM .25,(@1)
ARB:VOLT:PULS:TOP:TIM .5,(@1)
ARB:VOLT:PULS:END:TIM .25,(@1)
ARB:TERM:LAST OFF,(@1)

To set up the transient trigger system and trigger the Arb:

VOLT:MODE ARB,(@1)
TRIG:ARB:SOUR BUS
OUTP ON,(@1)
INIT:TRAN(@1)
*TRG

3 Using the Source Functions

Keysight N6705 User’s Guide

Configuring User-Defined Arbs

Edit Points

Step 1 – Select a voltage or current User-defined Arb:

Voltage

Current

Pulse

Step 2 – Configure the User-defined properties:

Arb Properties

Trigger

Add

Clear

Delete

User-defined Arbs can contain up to 511 voltage or current steps that
are entered individually in the User-defined Properties window.

You can also populate the User-defined voltage or current Arb with
values from a previously configured “standard” arbitrary waveform and
then edit the steps in the User-defined Properties window.

To convert one of the standard Arbs, program the standard Arb
parameters and then select the
defined Arb with the values from the standard Arb.

You can also import a User-defined Arb that was previously created
using a spreadsheet as explained later in this chapter under “Importing
and Exporting User-Defined and Constant-Dwell Arb Data”.

button to populate the User-

Press the Arb key twice or press the Arb key and then Properties to
access the Arb Selection window.

In the Arb Type dropdown menu, select either a
type. Then select the

output type.

or

Arb

To configure the parameters of the User-defined waveform, press the
Properties key or select the

For step 0, enter the voltage or current values. Then enter the time or
dwell for the step. Check the
external trigger signal at the start of the step.

Select the
that the values in the new step are copied from the previous step. Edit
the values in the step. Select

until your waveform is complete. Use the ▲ ▼ navigation keys to move
through the list.

button to insert a new step below the selected step. Note

if you want to delete the selected step. Continue to Add steps

if you want to clear all values. Select

button.

box if you wish to generate an

78

Specify what happens when the waveform completes – select whether
the output returns to the DC value that was in effect before the waveform
started, or whether the output should remain at the last Arb value.

Specify if the Arb should repeat, either continuously or only for a
specified repeat count. A repeat count of 1 runs the Arb once.

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79

Step 3 – Exporting or importing User-defined Arb data

Export

Import

Import

Export

After you have configured the User-defined Arb, you can use the
button to save the Arb list to a file. Conversely, if you have previously
created or saved a User-defined data file, you can use the
to import the Arb list.

Refer to “Importing and Exporting User-Defined and Constant-Dwell Arb
Data” later in this chapter for information on how to create .csv current
or voltage data files.

Select the Arb.csv file type format. When importing, specify the output
on which the User-defined Arb will run. When exporting, specify the
output from which you want to export the Arb.

Under Path/Filename, click Browse and specify the location where the
import file is located or where the export file will be placed. Internal:\
specifies the instrument’s internal memory. External:\ specifies the
Memory

Select

port on the front panel.

to import the file. Select

to export the file.

button

3 Using the Source Functions

Keysight N6705 User’s Guide

Step 4 – Select the trigger source:

Trigger Source

Step 4 – Preview and run the Arb:

From the remote interface:

To specify a Trigger source for the arbitrary waveforms, press the Arb
key, then select the
used to trigger all of the arbitrary waveforms.

Arb Run/Stop key selects the front panel Arb Run/Stop key as the
trigger source. BNC Trigger In selects the rear trigger input BNC
connector as the trigger source. Remote command selects a remote
interface command as the trigger source.

field. The same trigger source will be

The Arb Preview dialog shown above provides a preview of the User­defined waveform that will be run on output 1.

Select Meter View or Scope View to display the Arb.

Press the Output 1 On key to enable the output.

Press the Arb Run/Stop key to run the Arb.

The following commands select, program, and trigger a User-defined
voltage waveform of five steps on output 1:

ARB:FUNC:TYPE VOLT,(@1)
ARB:FUNC:SHAP UDEF,(@1)
ARB:VOLT:UDEF:LEV 10,20,30,40,50,(@1)
ARB:VOLT:UDEF:DWEL 1,2,3,2,1,(@1)
ARB:VOLT:UDEF:BOST 0,0,1,0,0,(@1)
ARB:TERM:LAST OFF,(@1)

To set up the transient trigger system and trigger the Arb:

VOLT:MODE ARB,(@1)
TRIG:ARB:SOUR BUS

80

OUTP ON,(@1)
INIT:TRAN(@1)
*TRG

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81

Configuring Constant-Dwell Arbs

Step 1 – Select a voltage or current Constant-dwell Arb:

Voltage

Current

Constant-Dwell

Step 2 – Configure the Constant-dwell properties:

Arb Properties

Import

Export

Constant-Dwell (CD)Arbs are a unique type of Arb that have some useful
differences from other types. CD Arbs are not limited to 511 points, they
can contain up to 65,535 points. Unlike other Arbs, they do not have
separate dwell values associated with each point; a single dwell value
applies to every point in the CD Arb. Also, the minimum dwell time of a
CD Arb is 10 .24 microseconds, instead of the 1 microsecond resolution
of the other Arbs.

A CD Arb can run along with other Arbs on other outputs. If multiple
outputs run a CD Arb, all CD Arbs must have the same dwell time. If a
repeat count is specified, all CD Arbs must have the same length and
repeat count.

Because the CD Arbs can have such a large number of points, you
cannot define the individual voltage or current values from the front
panel. Instead, the CD Arb data must be imported into the instrument
from a file. This is explained later in this chapter under “Importing and
Exporting User-Defined and Constant-Dwell Arb Data”.

Press the Arb key twice or press the Arb key and then Properties to
access the Arb Selection window.

In the Arb Type dropdown menu, select either a
type. Navigate to and select the

output type.

or

Arb

To configure the parameters of the Constant-dwell waveform, press the
Properties key or select the

Use the
Conversely, use the

Once the file has been imported the Arb Properties window will displays
the following information about the Arb: minimum value, maximum
value, average value, length in points, and the total time.

button to import a previously created CD Arb.

button to export the CD-Arb to a file.

button.

You can change the dwell per step of the Arb after it has been imported.
When an Arb file is imported, the dwell time specified in the file will be
entered in the Dwell per step field.

Specify what happens when the waveform completes – select whether
the output returns to the DC value that was in effect before the

3 Using the Source Functions

Keysight N6705 User’s Guide

Step 3 – Importing or exporting Constant-dwell Arb data

Import

Export

Step 4 – Select the trigger source:

Trigger Source

waveform started, or whether the output should remain at the last Arb
value.

Specify if the Arb should repeat, either continuously or only for a
specified repeat count. A repeat count of 1 runs the Arb once.

Refer to “Importing and Exporting User-Defined and Constant-Dwell Arb
Data” later in this chapter for information on how to create .csv current
or voltage data files.

Select the Arb.csv file type format. When importing, specify the output
on which the Constant-dwell Arb will run. When exporting, specify the
output from which you want to export the Arb.

Under Path/Filename, click Browse and specify the location where the
import file is located or where the export file will be placed. Internal:\
specifies the instrument’s internal memory. External:\ specifies the
Memory

Select

port on the front panel.

to import the file. Select

to export the file.

To specify a Trigger source for the arbitrary waveforms, press the Arb
key, then select the
used to trigger all of the arbitrary waveforms.

Arb Run/Stop key selects the front panel Arb Run/Stop key as the
trigger source. BNC Trigger In selects the rear trigger input BNC
connector as the trigger source. Remote command selects a remote
interface command as the trigger source.

field. The same trigger source will be

82

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83

Step 5 – Preview and run the Arb:

From the remote interface:

NOTE

will recognize the data format; however, you must specify the byte order.

The Arb Preview dialog shown above provides a preview of the Constant­dwell waveform that will be run on output 1.

Select Meter View or Scope View to display the Arb.

Press the Output 1 On key to enable the output.

Press the Arb Run/Stop key to run the Arb.

The following commands select, program, and trigger a Constant -dwell
voltage waveform of one second with ten steps on output 1:

ARB:FUNC:TYPE VOLT,(@1)
ARB:FUNC:SHAP CDW,(@1)
ARB:VOLT:CDW:DWEL .01,(@1)
ARB:VOLT:CDW 1,2,3,4,5,6,7,8,9,10,(@1)
ARB:TERM:LAST OFF,(@1)

The list of constant-dwell levels can be a list of comma-separated ASCII
values (the default setting), or for better performance, it can be sent as a
definite length binary block as described in IEEE 488.2.

If you are sending data as a definite length binary block, the instrument

Refer to “Measurement Data Formats” in chapter 6 for more information.

To set up the transient trigger system and trigger the CD Arb:

VOLT:MODE ARB,(@1)
TRIG:ARB:SOUR BUS
OUTP ON,(@1)
INIT:TRAN(@1)
*TRG

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Configuring an Arb Sequence

Step 1 – Select a voltage or current Arb Sequence:

Voltage

Current

Sequence

Step 2 – Configure the Arb Sequence:

Arb Properties

Name

Edit

Trigger

Repeat
count: 2

Sine

Pulse

Ramp

Repeat
count:

1

Repeat
count

: 1

The Arb Sequence allows multiple and different Arbs to run one after
another is succession. Any of the standard Arb types, except for Constant
Dwell Arbs, can be included in the Arb sequence. All Arbs in the sequence
must be of the same type; either voltage or current.

As with single Arbs, each Arb in the sequence has its own repeat count,
can be set for dwell or trigger pacing, and can be set to repeat
continuously. Note also that a repeat count can be set for the entire
sequence, and it can also be set to repeat continuously.

The following figure illustrates a sequence comprised of a pulse Arb, a
ramp Arb, and a sine Arb. The repeat count value indicates how many
times each Arb repeats before moving to the next type.

Press the Arb key twice or press the Arb key and then Properties to
access the Arb Selection window.

In the Arb Type dropdown menu, select either a
type. Then navigate to and select the

or

output type.

Arb

To configure the parameters of the Arb sequence, press the Properties
key or select the

For step 0, select an Arb type from the

button or Properties key to edit the waveform. The example below
shows the Pulse waveform type. Refer to “Configuring Pulse Arbs” for
information on setting the Pulse parameters.

button.

dropdown list. Select the

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The only additional step that you need to program is the Pacing. At the
end of the step you must specify if the next step will start when the dwell
time has elapsed or when an external trigger is received.

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Time

Pacing

Add

Name

Delete

Up

Down

Total Time

Waveform Quality

Advanced

Step 3 –Saving and loading an Arb Sequence

Save

Load

Once the step is configured, the
allocated to the step. The
transitioning to the next step; either dwell time or external trigger.

Select the
that the values in the new step are copied from the previous step. Select
and edit another Arb from the
want to delete the selected step. Continue to Add steps until your
sequence is complete. Use the
navigation keys to move through the list.

of the sine, ramp, trapezoid, and exponential waveforms that change
continuously over time. Normally, each continuous section is approximated
using 100 points, but in an Arb sequence this could result in exceeding the
511-point limit as more waveforms are added. The more of these
waveforms that are added to the sequence, the fewer points will be
allocated, down to a minimum of 16 points.

button to insert a new step below the selected step. Note

indicates the total run-time of the sequence.

indicates the number of points allocated to the portions

field will indicate the time that is

field indicates the method of

dropdown list.. Select

and

buttons or the ▲ ▼

if you

Use the
completes – select whether the output Returns to the DC Value that was in
effect before the waveform started, or whether the output should remain at
the Last Arb Value. Also specify if the Arb sequence should repeat, either
continuously or only for a specified repeat count. A repeat count of 2 runs
the Arb sequence twice.

button to specify what happens when the Arb sequence

Arb sequences are saved and recalled in instrument state files, but you
can also save and load them in files that are separate from other

and

instrument settings using the

Select the Sequence file type .seq. When loading a sequence, specify the
output on which the Sequence will run. When saving a Sequence, specify
the output from which you want to save the Sequence.

buttons.

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Load

Save

Step 4 – Select the trigger source:

Trigger Source

Step 4 – Preview and run the Arb:

From the remote interface:

Under Path/Filename, click Browse and specify the location where the
import file is located or where the export file will be placed. Internal:\
specifies the instrument’s internal memory. External:\ specifies the
Memory

Select

port on the front panel.

to load the file. Select

to save the file.

To specify a Trigger source for the arbitrary waveforms, press the Arb
key, then select the
used to trigger all of the arbitrary waveforms.

field. The same trigger source will be

Arb Run/Stop key selects the front panel Arb Run/Stop key as the
trigger source. This means that the Arb will be triggered as soon as you
run it. BNC Trigger In selects the rear trigger input BNC connector as the
trigger source. Remote command selects a remote interface command
as the trigger source.

The Arb Preview dialog shown above provides a preview of the Arb
Sequence that will be run on output 1.

Select Meter View or Scope View to display the Arb.

Press the Output 1 On key to enable the output.

Press the Arb Run/Stop key to run the Arb.

Observe the following when creating or editing an Arb sequence:

• The Arb function type (voltage or current) must match the Arb

type specified in each sequence step.

• Sequence steps must be specified sequentially. The last value in

the parameter list is the sequence step number.

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• When a step type is added, all parameters must be entered.

The following commands program a sequence comprised of a pulse, a
ramp, and a sine Arb with the pulse Arb repeated twice.

To set up output 1 to program a sequence of voltage waveforms:

ARB:FUNC:TYPE VOLT,(@1)
ARB:FUNC:SHAP SEQ,(@1)
ARB:SEQ:RESet (@1)

To program step 0 as a voltage pulse:

ARB:SEQ:STEP:FUNC:SHAP PULS,0,(@1)

ARB:SEQ:STEP:VOLT:PULS:STAR:TIM 0.25,0,(@1)

ARB:SEQ:STEP:VOLT:PULS:TOP 10.0,0,(@1)

ARB:SEQ:STEP:VOLT:PULS:TOP:TIM 0.5,0,(@1)

ARB:SEQ:STEP:VOLT:PULS:END:TIM 0.25,0,(@1)

To program step 1 as a voltage ramp:

ARB:SEQ:STEP:FUNC:SHAP RAMP,1,(@1)

ARB:SEQ:STEP:VOLT:RAMP:STAR:TIM 0.25,1,(@1)

ARB:SEQ:STEP:VOLT:RAMP:END 10.0,1,(@1)

ARB:SEQ:STEP:VOLT:RAMP:RTIM 0.5,1,(@1)

ARB:SEQ:STEP:VOLT:RAMP:END:TIM 0.25,1,(@1)

To program step 2 as a voltage sine wave:

ARB:SEQ:STEP:FUNC:SHAP SIN,2,(@1)

ARB:SEQ:STEP:VOLT:SIN:FREQ 0.0167,2,(@1)

ARB:SEQ:STEP:VOLT:SIN:OFFS 10.0,2,(@1)

ARB:SEQ:STEP:VOLT:SIN:AMPL 20.0,2,(@1)

To repeat step 0 twice:

ARB:SEQ:STEP:COUN 2,0,(@1)

To set the pacing for step 2 to triggered:

ARB:SEQ:STEP:PAC TRIG,2,(@1)

To select the trigger source for step 2:

TRIG:ARB:SOUR BUS,2,(@1)

To end the sequence at the last Arb value:

ARB:SEQ:TERM:LAST ON,(@1)

To make the entire sequence repeat twice:

ARB:SEQ:COUN 3,(@1)

To set up the transient trigger system and trigger the sequence:

VOLT:MODE ARB,(@1)

TRIG:ARB:SOUR BUS

OUTP ON,(@1)

INIT:TRAN(@1)

*TRG

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Arbitrary Waveform Parameters

Common Parameters

Parameter:

Description:

Return to DC Value

Last Arb Value

Edit Points

Continuous
Repeat Count

Close

From the remote interface:

The following properties are common to most Arb functions:

The parameter setting returns to the DC value
that was in effect prior to the Arb.
The parameter setting remains at the last Arb
value after the Arb completes.
Create a user-defined Arb from the present
Arb property values. This lets you edit specific
points in the standard arbitrary waveform.
Check to repeat the Arb continuously.
The number of times the Arb repeats. Except
for CD Arbs, the maximum repeat count is
about 16 million. The maximum repeat count
for voltage and current CD Arbs is 256.
Saves and closes the Properties window.

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The parameter setting returns to the DC value that was in effect prior to
the Arb.

ARB:TERM:LAST OFF,(@1)

The parameter setting remains at the last Arb value after the Arb
completes.

ARB:TERM:LAST ON,(@1)

Create a user-defined current or voltage Arb from the present Arb
property values:

ARB:CURR:CONV (@1)
ARB:VOLT:CONV (@1)

Repeat the Arb continuously.:

ARB:COUN INF,(@1)

The number of times the Arb repeats.

ARB:COUN 10,(@1)

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Step Parameters

Parameter:

Description:

Start Setting (I0 or V0)
End Setting (I1 or V1)
Delay (T0)

From the remote interface:

The setting before the step.
The setting after the step.
The delay after the trigger is received
before the step occurs.

The setting before the step:

ARB:CURR:STEP:STAR 0,(@1)
ARB:VOLT:STEP:STAR 0,(@1)

The setting after the step:

ARB:CURR:STEP:END 1,(@1)
ARB:VOLT:STEP:END 5,(@1)

The delay after the trigger is received before the step occurs:

ARB:CURR:STEP:STAR:TIM 0.01,(@1)
ARB:VOLT:STEP:STAR:TIM 0.01,(@1)

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Ramp Parameters

Parameter:

Description:

Start Setting (I0 or V0)
End Setting (I1 or V1)
Delay (T0)

Ramp Time (T1)
End Time (T2)

From the remote interface:

The setting before the ramp.
The setting after the ramp.
The delay after the trigger is received but
before the ramp starts.
The time that the output ramps up.
The time the output remains at the end
setting after the ramp completes.

The setting before the ramp:

ARB:CURR:RAMP:STAR 0,(@1)
ARB:VOLT:RAMP:STAR 0,(@1)

The setting after the ramp:

ARB:CURR:RAMP:END 1,(@1)
ARB:VOLT:RAMP:END 5,(@1)

The delay after the trigger is received but before the ramp starts:

ARB:CURR:RAMP:STAR:TIM 0.25,(@1)
ARB:VOLT:RAMP:STAR:TIM 0.25,(@1)

The time that the output ramps up:

ARB:CURR:RAMP:RTIM 0.5,(@1)
ARB:VOLT:RAMP:RTIM 0.5,(@1)

The time the output remains at the end setting after the ramp:

ARB:CURR:RAMP:END:TIM 0.01,(@1)
ARB:VOLT:RAMP:END:TIM 0.01,(@1)

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Staircase Parameters

Parameter:

Description:

Start Setting (I0 or V0)
End Setting (I1 or V1)

Delay (T0)

Step Time (T1)
End Time (T2)

# of Steps

From the remote interface:

The setting before the staircase.
The setting after the final stair step
(the difference between the start and end
setting is divided equally between the steps).
The delay after the trigger is received but
before the staircase starts.
The time to complete all staircase steps.
The time the output remains at the end
setting after the staircase completes.
The total number of staircase steps.

The setting before the staircase:

ARB:CURR:STA:STAR 0,(@1)
ARB:VOLT:STA:STAR 0,(@1)

The setting after the final stair step:

ARB:CURR:STA:END 1,(@1)
ARB:VOLT:STA:END 5,(@1)

The delay after the trigger is received but before the staircase starts:

ARB:CURR:STA:STAR:TIM 0.2,(@1)
ARB:VOLT:STA:STAR:TIM 0.2,(@1)

The time to complete all staircase steps:

ARB:CURR:TIM 0.2,(@1)
ARB:VOLT:TIM 0.2,(@1)

The time the output remains at the end setting after the staircase:

ARB:CURR:STA:END:TIM 0.2,(@1)
ARB:VOLT:STA:END:TIM 0.2,(@1)

The total number of staircase steps:

ARB:CURR:STA:NST 3,(@1)
ARB:VOLT:STA:NST 3,(@1)

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Sine Parameters

Parameter:

Description:

Amplitude (I0 or V0)
Offset (I1 or V1)

Frequency (f)

From the remote interface:

The amplitude or peak value.
The offset from zero.

For power modules that cannot generate
negative voltages or currents, the offset
cannot be less than the amplitude.

The frequency of the sine wave.

The amplitude or peak value:

ARB:CURR:SIN:AMPL 1,(@1)
ARB:VOLT:SIN:AMPL 5,(@1)

The offset from zero:

ARB:CURR:SIN:OFFS 1,(@1)
ARB:VOLT:SIN:OFFS 5,(@1)

The frequency of the sine wave:

ARB:CURR:SIN:FREQ 1,(@1)
ARB:VOLT:SIN:FREQ 1,(@1)

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Pulse Parameters

Parameter:

Description:

Start Setting (I0 or V0)
Pulse Setting (I1 or V1)
Delay (T0)

Pulse Width (T1)
End Time (T2)

From the remote interface:

The setting before and after the pulse.
The amplitude of the pulse.
The delay after the trigger is received but
before the pulse starts.
The width of the pulse.
The time the output remains at the end
setting after the pulse completes.

The setting before and after the pulse:

ARB:CURR:PULS:STAR 0,(@1)
ARB:VOLT:PULS:STAR 0,(@1)

The amplitude of the pulse:

ARB:CURR:PULS:TOP 1,(@1)
ARB:VOLT:PULS:TOP 10,(@1)

The delay after the trigger is received but before the pulse starts:

ARB:CURR:PULS:STAR:TIM 0.25,(@1)
ARB:VOLT:PULS:STAR:TIM 0.25,(@1)

The width of the pulse:

ARB:CURR:PULS:TOP:TIM 0.5,(@1)
ARB:VOLT:PULS:TOP:TIM 0.5,(@1)

The time the output remains at the end setting after the pulse:

ARB:CURR:PULS:END:TIM 0.25,(@1)
ARB:VOLT:PULS:END:TIM 0.25,(@1)

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Trapezoid Parameters

Parameter:

Description:

Start Setting (I0 or V0)
Peak Setting (I1 or V1)
Delay (T0)

Rise Time (T1)
Peak Width (T2)
Fall Time (T3)
End Time (T4)
setting after the trapezoid completes.

From the remote interface:

The setting before and after the trapezoid.
The peak setting.
The delay after the trigger is received

before the trapezoid starts

The time that the trapezoid ramps up.
The width of the peak.
The time that the trapezoid ramps down.
The time the output remains at the end

.

but

The setting before and after the trapezoid:

ARB:CURR:TRAP:STAR 0,(@1)
ARB:VOLT:TRAP:STAR 0,(@1)

The peak setting:

ARB:CURR:TRAP:TOP 1,(@1)
ARB:VOLT:TRAP:TOP 5,(@1)

The delay after the trigger is received but before the trapezoid starts:

ARB:CURR:TRAP:STAR:TIM 0.25,(@1)
ARB:VOLT:TRAP:STAR:TIM 0.25,(@1)

The time that the trapezoid ramps up (RTIM) and down (FTIM):

ARB:CURR:TRAP:RTIM 0.5,(@1)

ARB:VOLT:TRAP:RTIM 0.5,(@1)

ARB:CURR:TRAP:FTIM 0.5,(@1)

ARB:VOLT:TRAP:FTIM 0.5,(@1)

The width of the peak:

ARB:CURR:TRAP:TOP:TIM 1.5,(@1)
ARB:VOLT:TRAP:TOP:TIM 1.5,(@1)

The time the output remains at the end setting after the trapezoid:

ARB:CURR:PULS:END:TIM 0.25,(@1)
ARB:VOLT:PULS:END:TIM 0.25,(@1)

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Exponential Parameters

Parameter:

Description:

Start Setting (I0 or V0)
End Setting (I1 or V1)
Delay (T0)

Time (T1)

Time Constant (TC)

From the remote interface:

The setting before the waveform.
The end setting of the waveform.
The delay after the trigger is received

before the waveform starts.

Time for the amplitude to go from the
start setting to the end setting.
The time constant of the curve.

but

The setting before the waveform:

ARB:CURR:EXP:STAR 0,(@1)
ARB:VOLT:EXP:STAR 0,(@1)

The end setting of the waveform:

ARB:CURR:EXP:END 1,(@1)
ARB:VOLT:EXP:END 5,(@1)

The delay after the trigger is received but before the waveform starts:

ARB:CURR:EXP:STAR:TIM 0.25,(@1)
ARB:VOLT:EXP:STAR:TIM 0.25,(@1)

Time for the amplitude to go from the start setting to the end setting:

ARB:CURR:EXP:TIM 0.75,(@1)
ARB:VOLT:EXP:TIM 0.75,(@1)

The time constant of the curve:

ARB:CURR:EXP:TCON 0.1,(@1)
ARB:VOLT:EXP:TCON 0.1,(@1)

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User-Defined Parameters

Parameter:

Description:

Step <n>

Current

Voltage
Time
Trigger

Add

Delete
Clear
Import
Export

From the remote interface:

Each step of the waveform includes a voltage or
current parameter, dwell time, and trigger option.
The total number of steps determines the length.

Use the ▲ ▼ navigation keys to scroll through the steps.

or

(.csv format)

(.csv format)

The current or voltage value of the step.
The time that the output stays at the step.
Generate an external trigger signal at the start of

the step when checked.

Inserts a step below the selected step; values are

copied from the previous step.
Deletes the presently selected step.
Clears all steps.
Imports a current or voltage Arb list.
Exports a voltage or current Arb list.

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The current or voltage value of five steps:

ARB:CURR:UDEF:LEV 1,2,3,4,5,(@1)

ARB:VOLT:UDEF:LEV 1,2,3,4,5,(@1)

The time that the output stays at the steps:

ARB:CURR:UDEF:DWEL 1,2,3,2,1,(@1)

ARB:VOLT:UDEF:DWEL 1,2,3,2,1,(@1)

Generate an external trigger signal at the start of the step
(the trigger is generated at the start of step #3):

ARB:CURR:UDEF:BOST 0,0,1,0,0,(@1)

ARB:VOLT:UDEF:BOST 0,0,1,0,0,(@1)

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Constant-Dwell Parameters

Parameter:

Description:

Dwell per Step

Import
Export
Min

Max
Avg
Points
Time
Repeat Count

From the remote interface:

The dwell time for each step in seconds.
Values range from10.24 μs to 0.30 s.

(.csv format)

(.csv format)

Imports a current or voltage CD Arb list.
Exports a current or voltage CD Arb list.
The minimum value of the imported Arb

The maximum value of the imported Arb
The average value of the imported Arb
The number of points in the imported Arb
The total time of the imported Arb
The maximum repeat count for CD Arbs is 256.

The dwell time for each step in seconds.:

ARB:CURR:CDW:DWEL 0.01,(@1)

ARB:VOLT:CDW:DWEL 0.01,(@1)

The current or voltage value of ten steps:

ARB:CURR:CDW 0.5,1,1.5,2,2.5,3,3.5,4,4.5,5,(@1)
ARB:VOLT:CDW 1,2,3,4,5,6,7,8,9,10,(@1)

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Arb Sequence Parameters

Parameter:

Description:

Step <n>

Name
Time

Pacing

Add
Delete

Edit

Up

Down

Loads

Save

Total time

Waveform Quality

Advanced

(.seq format) Loads a previously created sequence file.

(.seq format) Saves the present voltage or current sequence.

Each step of the sequence includes a step number, an arbitrary waveform,
step time, and pacing option. The total number of steps determines the
length. Use the ▲ ▼ navigation keys to scroll through the steps.

The name of the Arb. Select an Arb from the dropdown list. Select Edit or
Properties to edit the waveform. The Pulse waveform edit fields are shown
above.

Displays the time that is allocated to the step in the Edit function. This time
does not include the number of repeat counts.

Displays the pacing of the step. Dwell-paced transitions to the next step
when the dwell time has elapsed. Trigger-paced transitions to the next step
when an external trigger is received. If the step time completes before the
trigger occurs, the step remains at the last Arb value while waiting for the
trigger.

Inserts a step below the selected step; values are copied from the previous

step.
Deletes the presently selected step.
Edits the selected Arb. The Pulse waveform edit fields are shown above.

Move to the next step specifies the step pacing. Repeat count specifies
how many times the Arb repeats. Continuous can only be selected if the
Arb is trigger-paced.

Move up through the steps.
Move down through the steps.

Indicates the total run-time of the sequence.
Indicates the number of points allocated to the continuously changing

portion of the following waveforms: sine, trapezoid, ramp, and exponential.
The more of these waveforms that are added to the sequence, the fewer
points will be allocated, down to a minimum of 16 points.

Lets you edit the common properties that apply to the entire sequence. See
“Configure the Common Properties”.

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From the remote interface:

Arb Trigger Sources

From the front panel

Trigger Source

Trigger Source:

Description:

Arb Run/Stop key
BNC Trigger in
Remote Command

A remote interface command.

The following must be observed when creating or editing an Arb
sequence:

• The Arb function type (voltage or current) must match the Arb

type specified in each sequence step.

• The Arb sequence step function waveshape must match the

shape used in the parameter commands that follow.

• The last value in the parameter list is the sequence step number.

To set up output 1 to program a voltage sequence:

ARB:FUNC:TYPE VOLT,(@1)
ARB:FUNC:SHAP SEQ,(@1)
ARB:SEQ:RESet (@1)

To program step 0 as the voltage pulse:

ARB:SEQ:STEP:FUNC:SHAP PULS,0,(@1)

ARB:SEQ:STEP:VOLT:PULS:STAR:TIM 0.25,0,(@1)

ARB:SEQ:STEP:VOLT:PULS:TOP 10.0,0,(@1)

ARB:SEQ:STEP:VOLT:PULS:TOP:TIM 0.5,0,(@1)

ARB:SEQ:STEP:VOLT:PULS:END:TIM 0.25,0,(@1)

Note that the time of step 0 is the sum of the Start Time, Top Time and
End Time. The default pacing for sequence steps is Dwell-pacing.

Specify a Trigger source for the arbitrary waveforms. The same trigger
source will be used to trigger all of the arbitrary waveforms.

Press the Arb key, then select the

field.

The front panel Run/Stop key
The rear trigger input BNC connector

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From the remote interface:

BUS

IMMediate

EXTernal

Arb Triggers

NOTE

From the front or rear panel

Trigger Source:

Description:

Arb Run/Stop key

Rear Trigger input

Select from one of the following SCPI trigger sources:

Selects a GPIB device trigger, *TRG, or <GET> (Group Execute Trigger).
Selects the immediate trigger source. This triggers the Arb immediately

when the INITiate command is sent.

Selects the trigger input BNC connector on the rear panel. You must
provide a low-true signal to the connector

To specify arbitrary waveforms as the output trigger response::

CURR:MODE ARB(@1)

VOLT:MODE ARB(@1)

To select a BUS trigger source:

TRIG:ARB:SOUR BUS

To select the immediate trigger source:

TRIG:ARB:SOUR IMM

To select the rear panel trigger input BNC connector:

TRIG:ARB:SOUR EXT

For the arbitrary waveform to appear at the output terminals, the
selected output must be turned on before the Arb is run. When the
arbitrary waveform runs, front panel voltage and current controls as well
as any remote voltage and current commands are ignored until after the
Arb completes.

Depending upon the selected trigger source, you can trigger the
arbitrary waveforms as follows:

Press the Arb Run/Stop key to initiate and start
the Arbs. All Arbs are triggered simultaneously.
Press the Arb Run/Stop key again to stop the
Arbs.

Provide a low-true signal to the Trigger In BNC
connector. The signal must persist for at least 2
microseconds. All Arbs are triggered
simultaneously.

100

Once configured, the instrument will wait indefinitely for the trigger
signal. If the trigger does not occur, and you wish to cancel the arbitrary
waveform, press the Arb Run/Stop key to stop the Arb.