Quick Start
SPD3303C Series
Programmable DC Power Supply
QS0503C-E01B
2014 SIGLENT TECHNOLOGIES CO., LTD
SIGLENT
Copyright Information
1. SIGLENT TECHNOLOGIES CO., LTD. All Rights Reserved.
2. Information in this publication replaces all previous
corresponding material.
3. SIGLENT reserves the right to change the specifications and
price of the product.
4. Any way of copying, extracting and translating the contents of
the manual are not allowed without permission of SIGLENT.
Note: SIGLENT is the registered trademark of SIGLENT.
SPD3303C Quick Start I
SIGLENT
General Safety Summary
Please review the following safety precautions carefully to avoid
personal injury or damage to this product or any product connected
to it. To prevent potential danger, please use the instrument as
specified.
Use proper power cord
Only the power cord designed for the instrument and authorized by
local country could be used.
Power supply
AC Input Voltages: 100V/110V/220V/230V ±10%, 50/60Hz.
Use proper fuse
The fuse types: 100V/110V(T6.3A/250V); 220V/230V
(T3.15A/250V);
Make sure to use the correct type of fuse before turning on the
instrument.
Do not connect the power cord before replacing the fuse.
Find out the reason why the fuse burned out before replacing the
fuse.
Ground the instrument
The instrument is grounded through the protective terra conductor
of the power cord. To avoid electric shock, the grounding conductor
must be connected to the earth. Make sure that the instrument is
properly grounded before any inputs or outputs.
Observe all terminal ratings
To avoid fire or electric shock, please observe all ratings and
symbols on the instrument. Read this guide carefully to know more
details about the ratings before connection.
II SPD3303C Quick Start
SIGLENT
Keep proper ventilation
Inadequate ventilation may cause an increase of temperature,
which will lead to further damage. Please keep proper ventilation
and check the fan and air-vents regularly when using the
instrument.
Operate condition
Location: indoor, no strong light, almost no Interfering pollution;
Comparative humidity: <80%
Altitude: <2000m
Temperature: 0 to 40℃ ℃
Do not operate in an explosive atmosphere
To avoid personal injury or damage to instrument, please do not
operate in an explosive atmosphere.
Keep surface of the product clean and dry
To avoid dust or moisture in the air influence the performance of the
instrument, please keep surface of the product clean and dry.
SPD3303C Quick Start III
SIGLENT
Safety Terms and Symbols
Terms may appear on the product:
DANGER: Indicates direct injury or hazard that may happen.
WARNING: Indicates potential injury or hazard that may happen.
CAUTION: Indicates potential damage to the instrument or other
property that may happen.
Symbols may appear on the product:
Hazardous Protective Warning Earth Power
Voltage Earth Ground Ground Switch
IV SPD3303C Quick Start
SIGLENT
Brief Introduction
SPD3303C LED series Programmable DC Power Supply is
convenient, flexible and multi-function. It is designed with three
groups of independent output terminals, the output voltage of two
groups is adjustable and another group is fixed to select: 2.5V, 3.3V,
and 5V. The instrument also provides output short circuit and
overload protection.
Main Features
Three independent output channels, two of which are
controllable, with a total power up to 195W;
Compatible design for power voltage: 100V, 110V, 220V and
230V to satisfy different power network;
Capable of saving and recalling set parameters;
Perfect PC software to realize the real-time control through
USBTMC.
SPD3303C Quick Start V
SIGLENT
Content
Copyright Information........................................................................................................I
General Safety Summary..................................................................................................II
Safety Terms and Symbols............................................................................................. IV
Brief Introduction.............................................................................................................. V
Chapter 1 Quick Guide......................................................................................................1
General Inspection...............................................................................................................1
Safety Considerations.........................................................................................................2
The Front Panel ....................................................................................................................3
Instruction for Buttons .......................................................................................................4
The Front Panel Terminals.................................................................................................5
User Interface........................................................................................................................6
The Rear Panel......................................................................................................................7
Output Checking...................................................................................................................8
Chapter 2 Control Panel Operation .................................................................................9
Output Summary ................................................................................................................10
CH1/CH2 Independent Output......................................................................................... 11
CH3 Independent mode....................................................................................................12
CH1/CH2 Series Mode.......................................................................................................13
CH1/CH2 Parallel Mode.....................................................................................................14
Save and Recall ..................................................................................................................15
Version Upgrade.................................................................................................................16
Upgrade in normal Interface....................................................................................16
Upgrade via the Guiding Procedure......................................................................18
Chapter 3 Remote Control..............................................................................................19
Command List.....................................................................................................................19
Command Description......................................................................................................20
Chapter 4 Troubleshooting.............................................................................................25
Specification.....................................................................................................................27
Contact SIGLENT................................................................................................................29
V
I
SPD3303C Quick Start
SIGLENT
Chapter 1 Quick Guide
In this chapter, we mainly introduce the panel and display of
SPD3303C, as well as the new machine inspection and attentions
at first use. Reading the following steps will give you a quick
understanding on operation.
General Inspection
1. Inspect the shipping container.
Keep the damaged shipping container or cushioning material
until the contents of the shipment have been completely
checked and the instrument has passed both electrical and
mechanical tests.
The consigner or carrier will be responsible for damages to the
instrument resulting from shipment. SIGLENT would not provide
free maintenance or replacement.
2. Inspect the instrument.
If there are instruments found damaged, defective or failure in
electrical and mechanical tests, please contact SIGLENT.
3. Check the accessories.
Please check the accessories according to the packing list. If the
accessories are incomplete or damaged, please contact your
SIGLENT sales representative.
SPD3303C Quick Start 1
SIGLENT
Safety Considerations
To ensure that the instrument can work normally, please conduct
necessary inspection before using the SPD3303C.
Input Power Requirement
The SPD3303C allows a 50Hz/60Hz frequency, and four levels of
AC power: 100V/120V/220V/230V. You can select wanted power
voltage with the “DIP Switch ” at the rear panel according to the
actual demand.
Warning
To switch to the wanted power voltage, please disconnect the
power cord first.
Electrical Check
Please use the power cord provided as accessory and connects the
instrument to AC power. Check the power as the following steps.
1. Connect the power supply
Warning
To avoid electric shock, please make sure that the instrument is
grounded correctly.
2. Turn on the power switch
Press the button POWER to enter boot interface, and system
return to the default settings after a while.
2 SPD3303C Quick Start
The Front Panel
1 ○2 ○3 ○4 ○5
○
SIGLENT
6
○
7
○
8
○
9
○
10 ○11 ○12 ○13 ○14 ○15
○
NO. Description NO. Description
1 Logo 9 CH3 DIP Switch
2 LED Display 10 Power Switch
3 Model 11 CH1 Output Terminal
System Parameter
4
12
Ground Terminal
Configuration button
5 Multi-function knob 13 CH2 Output Terminal
6 Fine Adjust button 14 CV/CC Indicator Light
7 Voltage/Current button 15 CH3 Output Terminal
8 Channel Control button
SPD3303C Quick Start 3
SIGLENT
Instruction for Buttons
Buttons for setting parameters
NO.1- 5
SER
PARA
LOCK
SAVE
RECALL
: Press the button to choose the storage location ;
: Press the button to set series mode of CH1/CH2.
: Press the button to set parallel mode of CH1/CH2.
: Long press the button to turn on/off the keylock function.
: Press the button to enter the storage system for saving files.
: Press the button to enter the storage system for recalling files.
Buttons for controlling the channel
CH1
: Press the button to select CH1 as the current channel;
CH2
: Press the button to select CH2 as the current channel;
ON/OFF
: Press the button to turn on/off output of the current channel;
CH3 ON/OFF
: Press the button to turn on/off the CH3 output.
ALL ON/OFF
: Press the button to turn on/off all channels;
Other buttons
FINE
: Press the button to open the fine adjust function and modify the
parameter in the minimum step;
V A
: To select between voltage and current.
4 SPD3303C Quick Start
SIGLENT
The Front Panel Terminals
The positive/negative output terminals of CH1, CH2, CH3, and the
common GND for CH1, CH2 are located on the front panel. Refer
to later “control panel operation” for wiring method details.
SPD3303C Quick Start 5
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User Interface
1
○
2
○
3
○
1 Channel Logo;
○
2 Voltage set/Readback value;
○
3 Current set/Readback value;
○
6 SPD3303C Quick Start
The Rear Panel
7
○
SIGLENT
1 ○2
○
○6 ○5 ○4 ○3
Description:
1 Warning message
○
2 AC power DIP switch
○
3 Instruction for the AC input voltage
○
4 AC power socket
○
5 Fan vent
○
6 CE certification mark
○
7 USB interface
○
SPD3303C Quick Start 7
SIGLENT
Output Checking
To make sure the instrument can correctly respond to operation
from the front panel, please perform the output checking, which
includes voltage checking when all channels are with no load and
current checking when short circuit occurs.
1. Output voltage checking
(1) With the instrument no load, turn on the power, and make
sure the current value displaying is not zero;
(2) Check the output voltage of CH1/CH2
Turn on CH1/CH2 channel and the instrument acquiescently
works in CV mode. Check whether the voltage value is
adjustable from 0V to 32V.
2. Current output check
(1) Turn on the power.
(2) Check the output current of CH1/CH2.
Use an insulated wire to connect the positive and negative
terminal of CH1/CH2;
Turn on CH1/CH2;
Select voltage and revolve the knob to set the value to 32V;
Select current and revolve the knob to set the value to 0A;
Check whether the current value is adjustable from 0A to
3.2A.
8 SPD3303C Quick Start
SIGLENT
Chapter 2 Control Panel Operation
In this chapter，the function and operation of SPD3303C control
panel will be introduced in detail to give you an all-around
understanding of it.
Brief introduction
Output Summary
CH1/CH2 Independent Output
CH3 Independent Output
Parallel Output
Series Output
Save and Recall
SPD3303C Quick Start 9
SIGLENT
Output Summary
SPD3303C is designed with three independent outputs, two of
which are adjustable in voltage value and the other includes a set of
selectable voltage values: 2.5V, 3.3V or 5.0V.
Independent/Parallel/Series
SPD3303C has three output modes: independent, parallel and
series that could be selected through the track switch on the front
panel. In independent mode, the output current and voltage are
controlled respectively. In parallel mode, the current value is twice
that of single channel. In the series mode, the voltage value is twice
that of single channel.
Constant Current/Voltage
In constant current mode (series/track mode), the current value is
rated. The indicator light displays red and the voltage value are
under its rating. The instrument will automatically turn to constant
voltage mode when the current value gets less than its dating. (In
parallel mode, the accessory channel remains in constant current
mode neglecting shift of the current value.)
In constant voltage mode, the voltage value is rated. The indicator
light displays green and the current value are under its rating. The
instrument will turn to constant current mode when the current
value gets up to d its dating.
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CH1/CH2 Independent Output
Instruction CH1 and CH2 are working in independent mode and
insulated from the ground.
Output ratings 0~30V/0~3A (Max: 32V, 3.2A)
Operation steps
1. Make sure that parallel/series mode is off.
2. Connect load to the positive and negative terminals of CH1/CH2.
3. Set the voltage (current) value of CH1/CH2: Firstly, press V (or A )
to select the voltage (current) parameter needed to modify. Then
revolve the multi-function knob to set the wanted value (You
could press FINE to make accurate adjusting).
Coarse adjusting: 0.1V or 0.1A each step.
Fine adjusting: the least precision each step.
4. Open output: Press ON/OFF button to turn on the output, the
channel works in CC or CV mode and its indicator light gets
lighted immediately.
SPD3303C Quick Start 11
SIGLENT
CH3 Independent mode
Instruction CH3 works independently from CH1, CH2, and its
voltage and current ratings are: 2.5V, 3.3V, 5V, 3A.
Output ratings 2.5V/3.3V/5V, 3A
Operation steps:
1. Connect the load to the positive and negative terminal of CH3
channel.
2. Select the wanted voltage value by moving the “DIP switch” of
CH3.
3. Open the output: Press ON/OFF button to turn on the channel
and the indicator light gets lighted immediately.
CV CC
When the current value gets higher than 3A, the overload indicator
light turns red and the working mode of CH3 turns to CC mode from
CV mode.
Note: “Overload” does not mean abnormal operation.
12 SPD3303C Quick Start
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CH1/CH2 Series Mode
Instruction：In the series mode, CH1 and CH2 are linked internally
into one channel controlled by CH1. The output
voltage value is twice compared with that of single
channel.
Output ratings 0~60V/0~3A (Max: 64V, 3.2A)
Operation steps：
1. Press the SER to start the Series mode, and the indicator light
turns bright
2. Connect the load to the positive terminal of CH2 and the
negative terminal of CH1;
3. Turn on CH1 and set its current value to 3A. In the default setup,
the instrument works in “Coarse”, you can turn to “Fine” by
pressing FINE;
Coarse: 0.1V or 0.1A each step;
Fine: the least precision each step;
4. Turn on CH1and set the output voltage/current value by
revolving the multi-function knob;
5. Press ON/OFF button to open the output.
Note: You can identify the current working state “CC” or “CV” by
referring to the indicator light.(red means CV, green means CC).
SPD3303C Quick Start 13
SIGLENT
CH1/CH2 Parallel Mode
Instruction In the parallel mode, CH1 and CH2 are linked internally
into one channel controlled by CH1. The output current
value is twice as much as the single channel.
Output ratings 0~30V/0~6A (Max: 32V, 6.4A)
Operation steps:
1. Press the PARA button to start Parallel mode, and the indicator
light turns bright immediately；
2. Connect the load to the positive and negative terminals of CH1；
3. Press ON/OFF button to open the output and the indicator light
turns bright.
Turn on CH1 and set its output voltage/current value by
revolving the multi-function knob. In the default setup, the
instrument works in “Coarse”, you could turn to “Fine” by
pressing FINE button.
Note: You can identity the current working state “CC” or “CV” refer
to the indicator light.(red means CV, green means CC). In
parallel mode, CH2 only works in CC mode.
14 SPD3303C Quick Start
SIGLENT
Save and Recall
Five groups of setups can be saved in memory. Contents of setups
including:
Independent/series/parallel mode
Output voltage/current value
Steps for saving setup
1. Set the state needed to save;
2. Press SAVE to enter the save interface;
3. Select the wanted file group by pressing NO.1-5;
4. Press SAVE again to save the current state to the specified file
group.
Steps for recalling setup
1. Press RECALL to enter the recall interface;
2. Select the wanted file group by pressing NO.1-5;
3. Press RECALL again to read the previously saved file.
SPD3303C Quick Start 15
SIGLENT
Version Upgrade
The software of the instrument is upgraded with a fixed name file
via PC management software with USBTMC. The upgrade method
is below:
Upgrade in normal Interface
1. Open the EasyPower software after correct connection of the
USB cable with the instrument.
2. Click the Upgrade option under the Version menu to enter the
USB firmware upgrade interface. As shown in figure 1:
Figure 1
3. Click the “Normal Mode” option, then select the will upgrade file
which is of “ugf” format.
16 SPD3303C Quick Start
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Figure 2
Figure 3
4. As it shows in figure 4, click the “Upgrade” to start upgrading.
The instrument will run the upgraded software as soon as the
upgrading completed.
Figure 4
SPD3303C Quick Start 17
SIGLENT
Upgrade via the Guiding Procedure
Upgrading via the guiding procedure can be used if the upgrading
method above failed.
Specific steps:
1. Pressing the knob prior to power on the instrument to enter the
guiding procedure mode.
2. As shown in figure 2, select the “Firmware Mode” option instead
and the following upgrading steps are the same as method 1.
18 SPD3303C Quick Start
SIGLENT
Chapter 3 Remote Control
SCPI Commands can be used to conduct remote control on the
SPD3303C Power Supply through the USBTMC. To realize the
remote control, the installation of EasyPower or NI（Measurement &
Automation ） software for the computer is required prior to
connecting the instrument with it using an USB cable.
Command List
1. *IDN?
2. *SAV
3. *RCL
4. INSTrument {CH1|CH2}
5. INSTrument ?
6. MEASure:CURRent?
7. MEAsure:VOLTage?
8. [SOURce:]CURRent <current>
9. [SOURce:]CURRent ?
10. [SOURce:]VOLTage <volt>
11. [SOURce:] VOLTage?
12. OUTPut
13. OUTPut:TRACk
14. SYSTem:ERRor?
15. SYSTem:VERSion?
16. SYSTem: STATus?
SPD3303C Quick Start 19
SIGLENT
Command Description
1.*IDN?
Command format *IDN?
Description Query the manufacturer, product model, series NO. and
software version.
Return Info Manufacturer, product model, series NO., software
version.
Example Siglent, SPD3303C, SPD00001130025, 1.01.01.02.
2.*SAV
Command format *SAV <name>
Description Save the current state in nonvolatile memory with the
specified name.
Example *SAV 1
3.*RCL
Command format *RCL <name>
Description Recall state that previously saved.
Example *RCL 1
20 SPD3303C Quick Start
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4. INSTrument
Command format INSTrument <CH1|CH2>
Description Select the channel that will be operated.
Example INSTrument CH1
Command format INSTrument?
Description Query the current operating channel
Example INSTrument?
Return Info CH1
5. MEASure
Command format MEASure: CURRent? < CH1|CH2>
Description Query current value for specified channel, if there is no
specified channel, query the current channel.
Example MEASure: CURRent? CH1
Return Info 3.000
Command format MEASure: VOLTage? < CH1|CH2>
Description Query voltage value for specified channel, if there is no
specified channel, query the current channel.
Example MEASure: VOLTage? CH1
Return Info 30.000
SPD3303C Quick Start 21
SIGLENT
6. SOURce
Command format <SOURce:>CURRent <value>
<SOURce>:={CH1 | CH2}
Description Set current value for the current channel
Example CH1:CURRent 0.5
Command format <SOURce>: CURRent?
<SOURce>:={CH1 | CH2}
Description Query the current value for the current channel.
Example CH1: CURRent?
Return Info 0.5
Command format <SOURce>: VOLTage <value>
<SOURce>:={CH1 | CH2}
Description Set voltage value for the current channel
Example CH1: VOLTage 25
Command format <SOURce>: VOLTage?
<SOURce>:={CH1 | CH2}
Description Query the voltage value for the current channel.
Example CH1: VOLTage?
Return Info 25
22 SPD3303C Quick Start
7. OUTPut
Command format OUTPut <SOURce>, <state>
<SOURce>:={CH1 | CH2}; <state>:={ON | OFF}
Description Turn on/off the specified channel.
Example OUTPut CH1, ON
Command format OUTPut: TRACK <NR1>
<NR1>:={0[Independent] | 1[Series] | 2[Parallel]}
Description Select the operation mode
SIGLENT
Example OUTPut: TRACK 0
8. SYSTem
Command format SYSTem: ERRor?
Description Query the error code and the information.
Command format SYSTem: VERSion?
Description Query the software version.
Example SYSTem: VERSion?
Return Info 1.01.01.02
SPD3303C Quick Start 23
SIGLENT
Command format SYSTem: STATus?
Description Query the current working state.
Example SYSTem: STATus?
Return info 0x0224
Instruction The return info is in Hexadecimal format, which means
that you must translate the return info into binary format.
The correspondence relationship is as shown below.
Bit NO. Corresponding State
0 0: CH1 CV mode; 1: CH1 CC mode
1 0: CH2 CV mode; 1: CH2 CC mode
2,3 01: Independent mode; 10: Parallel mode
11: Series mode
4 0: CH1 OFF 1: CH1 ON
5 0: CH2 OFF 1: CH2 ON
24 SPD3303C Quick Start
SIGLENT
Chapter 4 Troubleshooting
Question 1: What to do if there occurs a short circuit on output
terminal?
Answer1: There are over current protection and short circuit
protection inside the power, so the current will be
controlled in safety range.
Question 2: Is it abnormal that the CH3 overload indicator turns
bright ?
Answer 2: No. That only means the current value reaches the
maximum 3A. For better use, you’d better decrease
the output load.
Question 3: Is it normal that in the series mode, the voltage and
current value of one channel is respectively 0V and
not 0A, while that of another channel proves not to be
0?
Answer 3: Yes. Because when the current output load gets higher
than the limited, the working mode turns to CC from CV.
Question 4: What to do if upgrading fails?
Answer 4: Please do it again.
Question 5: Is it normal that the practical value is a little different
from the value you set (exceed performance
standard), or even shifts slowly on startup?
Answer 5: Yes. During the startup, components inside the
instrument are getting stable in 30 minutes, which
lead to going up of the temperature.
Question 6: What if the circuit air switch turns off automatically
when power on?
Answer 6: First of all, make sure if the rating of the air switch is
proper (For instance: the rating of air switch B and C
should be respectively over 16A and 10A). If the failure
still exits beyond the reason, check if there occurs a
short circuit, or return it to the factory to have it repaired
by qualified personnel.
SPD3303C Quick Start 25
SIGLENT
Specification
Test conditions: warm-up for about 30minitus, with temperature
between +20 ~+30 .℃ ℃
Output
Ratings
Constant
Voltage Mode
Constant
Current Mode
CH3
Tracking
Operation
Parallel Mode
Series Mode
Resolution
Display
Accuracy
Insulation
CH1/CH2 independent 0～30V , 0～3A
CH1/CH2 series 0～60V , 0～3A
CH1/CH2 parallel 0～30V , 0～6A
CH3 2.5V/3.3V/5.0V , 0～3A
power change rate ≤0.01%+3mV
Load change rate ≤0.01%+3mV(rating current ≤ 3A)
≤0.02%+5mV(rating current ＞ 3A)
Ripple and noise ≤2mVrms（5Hz ～ 1MHz）
Recover time ≤100μs(50% load change ,minimum
load 0.5A)
Temperature coefficient ≤300ppm/℃
Power change rate ≤0.2%+3mA
Load change rate ≤0.2%+3mA
Ripple and noise ≤3mArms
Power change rate ≤5mV
Load change rate ≤15mV
Ripple and noise ≤2mVrms（5Hz ～ 1MHz）
Track error ≤0.5%+10mV of Master(No Load)
Power change rate ≤0.01%+3mV
Load change rate ≤0.01%+3mV(rating current≤3A)
≤0.02%+5mV(rating current＞3A)
Power change rate ≤ 0.01%+5mV
Load change rate ≤ 300mV
Voltage Voltage: 10mV
Current Current: 10mA
Ammeter 3.2A full scale, 3 digits LED display
Voltmeter 32V full scale, 4 digits LED display
Set precision Voltage：±（0.5% of reading + 1digit）
Current：± (0.5% of reading + 1digit)
Readback precision Voltage：±（0.5% of reading + 1digit）
Current：± (0.5% of reading + 1digit)
Between base and
terminal
Between base and AC
power cord
20MΩor above (DC 500V)
30MΩor above (DC 500V)
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SPD3303C Quick Start
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Operating
environment
Storage
environment
Power supply
Volume
Weight
Indoor
Altitude ≤2000 m
Environment temperature 0 ~ 40℃
Comparative humidity 80%
Installation level Ⅱ
Pollution level 2
Environment temperature -10 ~ 70℃
Comparative humidity ≤ 70%
AC 100V/120V/220V/230V±10%, 50/60HZ
275mm x 225mm x 136mm
7.5kg
SPD3303C Quick Start
27
SIGLENT
Contact SIGLENT
MTR Add: 3/F, Building 4, Antongda Industrial Zone, 3rd Liuxian
Road, 68 District, Baoan District, Shenzhen, P.R. CHINA
Tel: +86-755-36615186
E-mail: sales@siglent.com
http: //www.siglent.com
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SPD3303C Quick Start
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