Rigol DL3021 User manual

RIGOL
User’s Guide
DL3000 Series Programmable DC
Electronic Load
Aug. 2017
RIGOL TECHNOLOGIES, INC.

RIGOL
DL3000 User’s Guide I
Guaranty and Declaration
Copyright
© 2017 RIGOL TECHNOLOGIES, INC. All Rights Reserved.
Trademark Information
RIGOL is a registered trademark of RIGOL TECHNOLOGIES, INC.
Publication Number
UGJ01104-1110
Software Version
00.01.01
Software upgrade might change or add product features. Please acquire the latest
version of the manual from RIGOL website or contact RIGOL to upgrade the
software.
Notices
RIGOL products are covered by P.R.C. and foreign patents, issued and pending.
RIGOL reserves the right to modify or change parts of or all the specifications
and pricing policies at the company’s sole decision.
Information in this publication replaces all previously released materials.
Information in this publication is subject to change without notice.
RIGOL shall not be liable for either incidental or consequential losses in
connection with the furnishing, use, or performance of this manual, as well as
any information contained.
Any part of this document is forbidden to be copied, photocopied, or rearranged
without prior written approval of RIGOL.
Product Certification
RIGOL guarantees that this product conforms to the national and industrial
standards in China as well as the ISO9001:2008 standard and the ISO14001:2004
standard. Other international standard conformance certifications are in progress.
Contact Us
If you have any problem or requirement when using our products or this manual,
please contact RIGOL.
E-mail: [e-mail]
Website: www.rigol.com

RIGOL
II DL3000 User’s Guide
Safety Requirement
General Safety Summary
Please review the following safety precautions carefully before putting the
instrument into operation so as to avoid any personal injury or damage to the
instrument and any product connected to it. To prevent potential hazards, please
follow the instructions specified in this manual to use the instrument properly.
Use Proper Power Cord.
Only the exclusive power cord designed for the instrument and authorized for use
within the local country could be used.
Ground the Instrument.
The instrument is grounded through the Protective Earth lead of the power cord. To
avoid electric shock, connect the earth terminal of the power cord to the Protective
Earth terminal before connecting any input or output terminals.
Connect the Probe Correctly.
If a probe is used, the probe ground lead must be connected to earth ground. Do not
connect the ground lead to high voltage. Improper way of connection could result in
dangerous voltages being present on the connectors, controls or other surfaces of
the oscilloscope and probes, which will cause potential hazards for operators.
Observe All Terminal Ratings.
To avoid fire or shock hazard, observe all ratings and markers on the instrument and
check your manual for more information about ratings before connecting the
instrument.
Use Proper Overvoltage Protection.
Ensure that no overvoltage (such as that caused by a bolt of lightning) can reach the
product. Otherwise, the operator might be exposed to the danger of an electric
shock.
Do Not Operate Without Covers.
Do not operate the instrument with covers or panels removed.
Do Not Insert Objects Into the Air Outlet.
Do not insert objects into the air outlet, as doing so may cause damage to the
instrument.
Use Proper Fuse.
Please use the specified fuses.

RIGOL
DL3000 User’s Guide III
Avoid Circuit or Wire Exposure.
Do not touch exposed junctions and components when the unit is powered on.
Do Not Operate With Suspected Failures.
If you suspect that any damage may occur to the instrument, have it inspected by
RIGOL authorized personnel before further operations. Any maintenance,
adjustment or replacement especially to circuits or accessories must be performed
by RIGOL authorized personnel.
Provide Adequate Ventilation.
Inadequate ventilation may cause an increase of temperature in the instrument,
which would cause damage to the instrument. So please keep the instrument well
ventilated and inspect the air outlet and the fan regularly.
Do Not Operate in Wet Conditions.
To avoid short circuit inside the instrument or electric shock, never operate the
instrument in a humid environment.
Do Not Operate in an Explosive Atmosphere.
To avoid personal injuries or damage to the instrument, never operate the
instrument in an explosive atmosphere.
Keep Product Surfaces Clean and Dry.
To avoid dust or moisture from affecting the performance of the instrument, keep the
surfaces of the instrument clean and dry.
Prevent Electrostatic Impact.
Operate the instrument in an electrostatic discharge protective environment to avoid
damage induced by static discharges. Always ground both the internal and external
conductors of cables to release static before making connections.
Use the Battery Properly.
Do not expose the battery (if available) to high temperature or fire. Keep it out of the
reach of children. Improper change of a battery (lithium battery) may cause an
explosion. Use the RIGOL specified battery only.
Handle with Caution.
Please handle with care during transportation to avoid damage to keys, knobs,
interfaces, and other parts on the panels.

RIGOL
IV DL3000 User’s Guide
Safety Notices and Symbols
Safety Notices in this Manual:
WARNING
Indicates a potentially hazardous situation or practice which, if not
avoided, will result in serious injury or death.
CAUTION
Indicates a potentially hazardous situation or practice which, if not
avoided, could result in damage to the product or loss of important data.
Safety Terms on the Product:
DANGER
It calls attention to an operation, if not correctly performed, could
result in injury or hazard immediately.
WARNING It calls attention to an operation, if not correctly performed, could
result in potential injury or hazard.
CAUTION
It calls attention to an operation, if not correctly performed, could
result in damage to the product or other devices connected to the
product.
Safety Symbols on the Product:
Hazardous
Voltage
Safety Warning
Protective Earth
Terminal
Chassis Ground
Test Ground

RIGOL
DL3000 User’s Guide V
Care and Cleaning
Care
Do not store or leave the instrument where it may be exposed to direct sunlight for
long periods of time.
Cleaning
Clean the instrument regularly according to its operating conditions.
1. Disconnect the instrument from all power sources.
2. Clean the external surfaces of the instrument with a soft cloth dampened with
mild detergent or water. When cleaning the LCD, take care to avoid scarifying it.
CAUTION
To avoid damage to the instrument, do not expose it to caustic liquids.
WARNING
To avoid short-circuit resulting from moisture or personal injuries, ensure
that the instrument is completely dry before connecting it to the power
supply.
Environmental Considerations
The following symbol indicates that this product complies with the WEEE Directive
2002/96/EC.
Product End-of-Life Handling
The equipment may contain substances that could be harmful to the environment or
human health. To avoid the release of such substances into the environment and
avoid harm to human health, we recommend you to recycle this product
appropriately to ensure that most materials are reused or recycled properly. Please
contact your local authorities for disposal or recycling information.

RIGOL
VI DL3000 User’s Guide
DL3000 Series Overview
DL3000 is a cost-effective programmable DC electronic load with high performance.
With a user-friendly interface and superb performance specifications, DL3000 series
provides various interfaces for remote communication to meet your diversified test
requirements. It can be widely used in various industries, such as automotive
electronics, aerospace, and fuel cells.
Main Features:
DL3021/DL3021A: single channel, DC 150 V/40 A, total power up to 200 W
DL3031/DL3031A: single channel, DC 150 V/60 A, total power up to 350 W
Dynamic mode: up to 30 kHz
Adjustable current rising speed: 0.001 A/μs to 5 A/μs
Min. readback resolution: 0.1 mV, 0.1 mA
4.3-inch TFT LCD, capable of displaying multiple parameters and states
simultaneously
Overvoltage/overcurrent/overpower/overtemperature/reverse voltage
protection
4 static modes: CC, CV, CR, CP
3 dynamic modes: continuous, pulsed, toggled
List function supports editing as many as 512 steps
Battery test function, OCP test, OPP test, factory test function, etc.
Short-circuit test function
Power-off memory function
Built-in RS232/USB/LAN communication interface
USB-GPIB interface converter (optional)

RIGOL
DL3000 User’s Guide VII
Document Overview
Chapter 1 Quick Start
This chapter introduces some basic information that you should know when you use
the DL3000 series electronic load for the first time. This section contains the
following contents: out-of-box inspection method, the appearance and dimensions of
the instrument, descriptions of the front/rear panel, how to connect the power supply,
how to carry out the turn-on checkout, how to replace the fuse, a brief introduction
about the user interface, how to use the built-in help system, and how to set the
parameters.
Chapter 2 Front Panel Operations
This chapter gives a detailed description about the functions of all the keys on the
front panel of DL3000 series and detailed operation methods.
Chapter 3 Remote Control
This chapter introduces how to remotely control the instrument.
Chapter 4 Troubleshooting
This chapter introduces the possible failures and solutions in using the DL3000 series
electronic load.
Chapter 5 Specifications
This chapter lists all the performance specifications of the DL3000 series electronic
load.
Chapter 6 Appendix
This chapter provides the order information and warranty information about the
DL3000 series electronic load.
Index
This chapter provides keyword search information, enabling you to quickly locate the
desired information.
Tip
For the latest version of this manual, download it from the official website of
RIGOL
(www.rigol.com).
Format Conventions in this Manual
1. Key
(1) The key on the front panel is denoted by the format of "Key Name (Bold) +
Text Box" in the manual. For example, ON/OFF denotes the "ON/OFF" key.
(2) Use the screen shot to indicate the key. For example, denotes the
Power key.

RIGOL
VIII DL3000 User’s Guide
2. Menu Softkey
The menu softkey is denoted by the format of “Menu Word (Bold) + Character
Shading”. For example, Interface denotes the “Interface” menu softkey under
Utility.
Content Conventions in this Manual
The number of channels and the rated values of input parameters for the DL3000
series are listed in the following table. Unless otherwise specified, this manual takes
DL3031A as an example to illustrate the functions and operation methods of the
DL3000 series.
Model No. of Channels Voltage Current Power
DL3021/DL3021A 1 DC 150 V 40 A 200 W
DL3031/DL3031A
1
DC 150 V
60 A
350 W

Contents RIGOL
DL3000 User’s Guide IX
Contents
Guaranty and Declaration.........................................................................I
Safety Requirement................................................................................II
General Safety Summary...........................................................................II
Safety Notices and Symbols......................................................................IV
Care and Cleaning....................................................................................V
Environmental Considerations....................................................................V
DL3000 Series Overview ..........................................................................VI
Document Overview ...............................................................................VII
Chapter 1 Quick Start.........................................................................1-1
General Inspection ................................................................................ 1-2
Appearance and Dimensions................................................................... 1-3
Front Panel........................................................................................... 1-4
Rear Panel...........................................................................................1-10
Turn-on Checkout.................................................................................1-12
To Connect to Power Supply............................................................1-12
To Power On the Instrument...........................................................1-13
Fuse Replacement................................................................................1-14
User Interface......................................................................................1-15
To Use the Built-in Help System.............................................................1-16
Parameter Setting Method.....................................................................1-17
Chapter 2 Front Panel Operations ......................................................2-1
Local/Remote Operation Mode................................................................ 2-2
Local Operation Mode...................................................................... 2-2
Remote Operation Mode.................................................................. 2-2
Static Operation Mode ........................................................................... 2-3
Constant Current (CC) Mode ............................................................ 2-3
Constant Voltage (CV) Mode ............................................................ 2-7
Constant Resistance (CR) Mode.......................................................2-11
Constant Power (CP) Mode .............................................................2-14
Transient Test Function.........................................................................2-17
CC Continuous Mode (Con).............................................................2-17
CC Pulsed Mode (Pul).....................................................................2-24
CC Toggled Mode (Tog)..................................................................2-31
List Operation Function (List).................................................................2-37
Application Function .............................................................................2-44
OCP Test Function..........................................................................2-44
OPP Test Function..........................................................................2-52
Battery Test Function .....................................................................2-59
Advanced Function...............................................................................2-64
Factory Test Function .....................................................................2-64
CC+CV Function ............................................................................2-68

RIGOL Contents
XDL3000 User’s Guide
Waveform Display Function...................................................................2-72
Input Control.......................................................................................2-76
Turn On/Off the Input....................................................................2-76
Von Latch Function........................................................................2-76
Short-circuit Operation...................................................................2-77
Trigger Operation ..........................................................................2-78
Protection Function ..............................................................................2-80
Sense Working Mode............................................................................2-82
Function of Terminals on the Rear Panel.................................................2-84
Store and Recall...................................................................................2-85
Cursor..........................................................................................2-86
Save.............................................................................................2-86
Read ............................................................................................2-88
Delete ..........................................................................................2-89
Copy and Paste .............................................................................2-89
System Utility Function.........................................................................2-90
System.........................................................................................2-91
Communication Interface Setting ....................................................2-95
System Info ................................................................................2-103
Reset..........................................................................................2-103
Option Configuration....................................................................2-108
Chapter 3 Remote Control ................................................................. 3-1
Remote Control via USB..........................................................................3-2
Remote Control via LAN..........................................................................3-5
Remote Control via GPIB.........................................................................3-8
Remote Control via RS232 ....................................................................3-11
Chapter 4 Troubleshooting ................................................................ 4-1
Chapter 5 Specifications .................................................................... 5-1
Chapter 6 Appendix ........................................................................... 6-1
Appendix A: Order Information................................................................6-1
Appendix B: Warranty.............................................................................6-4
Index........................................................................................................1

Chapter 1 Quick Start RIGOL
DL3000 User’s Guide 1-1
Chapter 1 Quick Start
Contents in this chapter:
General Inspection
Appearance and Dimensions
Front Panel
Rear Panel
Turn-on Checkout
Fuse Replacement
User Interface
To Use the Built-in Help System
Parameter Setting Method

RIGOL Chapter 1 Quick Start
1-2 DL3000 User’s Guide
General Inspection
1
．
Inspect the packaging
If the packaging has been damaged, do not dispose the damaged packaging or
cushioning materials until the shipment has been checked for completeness and
has passed both electrical and mechanical tests.
The consigner or carrier shall be liable for the damage to the instrument
resulting from shipment. RIGOL would not be responsible for free
maintenance/rework or replacement of the instrument.
2
．
Inspect the instrument
In case of any mechanical damage, missing parts, or failure in passing the
electrical and mechanical tests, contact your RIGOL sales representative.
3
．
Check the accessories
Please check the accessories according to the packing lists. If the accessories
are damaged or incomplete, please contact your RIGOL sales representative.

Chapter 1 Quick Start RIGOL
DL3000 User’s Guide 1-3
Appearance and Dimensions
Figure 1-1 Front View Unit: mm
Figure 1-2 Side View Unit: mm

RIGOL Chapter 1 Quick Start
1-4 DL3000 User’s Guide
Front Panel
Figure 1-3 Front Panel
1. LCD
4.3-inch TFT LCD, used to display the system status, input parameters, menu
setting, prompt message, etc.
2. Waveform Display Key
Pressing this key can enter the waveform display interface. You can observe the
changes of parameters from the dynamic waveform.
3. Function Keys
Provide four static operating modes and three dynamic test functions. In
addition, there is also a key used for list operation.
(1) CC key
Pressing this key can enter the constant current (CC) mode. You
can set parameters for the mode, such as current, range, slew
rate, and starting voltage.
(2) CV key
Pressing this key can enter the constant voltage (CV) mode. You
can set parameters for the mode, such as voltage and range.
7
12 11 10 9 8
1 2
3 4
5
6

Chapter 1 Quick Start RIGOL
DL3000 User’s Guide 1-5
(3) CR key
Pressing this key can enter the constant resistance (CR) mode.
You can set parameters for the mode, such as resistance and
range.
(4) CP key
Pressing this key can enter the constant power (CP) mode. You
can set parameters for the mode, such as power and upper limit
of the voltage.
(5) Con key
Pressing this key can enter the continuous (Con) mode. You can
set parameters for the mode, such as range, Level A, Level B,
rising slew rate, and falling slew rate.
(6) Pul key
Pressing this key can enter the pulsed (Pul) mode. You can set
parameters for the mode, such as range, Level A, Level B, rising
slew rate, and falling slew rate.
(7) Tog key
Pressing this key can enter the toggled (Tog) mode. You can set
parameters for the mode, such as range, Level A, Level B, rising
slew rate, and falling slew rate.
(8) List key
Pressing this key can enter the list operation interface. You can
set parameters such as mode, range, the number of times the list
is cycled
, and the number of steps.
4. System Function Keys
(1) Local/remote switch key
In remote operation mode, when you press this key, you can
switch to the local mode.
(2) System utility function key
System
Sets the system language, power-on value, brightness,
short-circuit function, digital input/output, beeper (on/off),
Sense function, log, Von Latch function, voltage monitoring
output terminal, and current monitoring output terminal.
Interface
Configures parameters for remote communication interfaces
(GPIB/USB/RS232/LAN).

RIGOL Chapter 1 Quick Start
1-6 DL3000 User’s Guide

System Info
Displays the manufacturer, device model, software and
hardware versions, FPGA version, boot version, system boot
times, calibration date, and product serial number.
Reset
Restores the instrument settings to its factory default
settings, For default settings, refer to Table 2-3.
(3) Advanced function key
Provides advanced functions. Currently, the factory test function
and CC+CV function are supported.
(4) Storing and recalling operation key
Saves, reads, deletes, copies, and pastes the files. The
instrument provides an internal non-volatile memory ("Disk C")
and supports an external memory ("Disk D"). A maximum of 100
files can be stored in the instrument.
(5) Help key
Enters the built-in help system. You can view relevant help
information for any key or menu key on the front panel.
5. Knob
(1) Switch the parameters or parameter values.
(2) Increases (rotate clockwise) or decreases (rotate counterclockwise) the
value at the cursor.
Note: Rotating the knob in different interfaces can produce different operation
results. Here introduces its common usage. For other specific usages and
operation methods, refer to details in relevant chapters.
6. Input Control Keys
(1) Input on/off key
Enables or disables the sink function of the load.
(2) Transient trigger key
Turns on or off the transient trigger function.
(3) Short-circuit key
Enables or disables the short circuit function of the load.

Chapter 1 Quick Start RIGOL
DL3000 User’s Guide 1-7
7. Control Keys
Control keys include the arrow keys, numeric keys, and confirmation key.
Pressing the control keys in different interfaces can produce different operation
results.
Note: Here introduces their common usage. For their other specific usages and
operation methods, refer to details in relevant chapters.
(1)Arrow keys (Up/Down/Left/Right arrow key)

Switch the parameter focus.
Move the cursor.
Switch the parameters or parameter values.
When setting parameters, use the Up arrow key to
increase the value at the cursor or use the Down
arrow key to decrease the value at the cursor.
(2)Confirmation key
Confirms the parameter setting.
(3)Numeric keys and backspace key
Numeric keys
The numeric keys contain numbers (0-9)
and a decimal point. You can use the
numeric keys to enter a value for the
parameter.
Backspace key
Deletes the unwanted characters or
numerical values that have been entered.
8. Application Key
Enables one of the following three application functions: OCP test, OPP test, or
Battery test. You can press this key to switch among the three functions.
9. Channel Terminals
Channel terminals include the channel input terminals and Sense terminals, as
shown in Figure 1-4.
Backspace key

RIGOL Chapter 1 Quick Start
1-8 DL3000 User’s Guide
Figure 1-4 Channel Terminals
(1) Channel input terminal: Connects with the device under test (DUT, such as
battery and power supply), which is used for inputting voltage and current.
Note: Connect the positive polarity of the load to the (+) terminal of the
channel output, and the negative polarity of the load to the (-) terminal of
the channel output.
(2) Sense terminal: When the DUT outputs large current, the sense terminal
can be used to accurately measure the voltage across the output terminals
of the DUT to compensate for the voltage drop on the load.
Connection methods for the input terminals (see Figure 1-5):
Figure 1-5 Connect Input Terminals
a) Rotate the outer nut of the input terminal counterclockwise to remove it.
b) Connect the test lead to Position A of the input terminal.
c) Fasten the outer nut of the input terminal clockwise.
d) Secure the shield to the terminal and then tighten the screw.
CAUTION
To avoid electric shock, ensure that you have installed the shield
when the DC voltage output from the DUT is equal to or greater
than 70 V.
Channel Input Terminals
Sense Terminals
A
Outer Nut
Shield