SKY TOPPOWER DC Regulated Power Supply User Manual

High Precision
User Manual

DC Regulated Power Supply

DC Regulated Power Supply

Thank you for purchasing SKY TOPPOWER Switching DC Power Supplies. This user manual contains useful information regarding the functions and operating procedures of the instrument as well as precautions that should be observed during use. To ensure proper use the instrument, please read this manual thoroughly before operating it. Keep the manual carefully for quick reference whenever a question arises.
Before using the instument, please read the weming carefully, Do not ignore ft, as & is important
Waming: Do not connect any load to the power supply before it’s tumed on. Likewise, make sure to disconnect the load before shutting down the power supply. Damages to the power supply can happen if you do not follow this. Such damages are not under warranty.
Waming: |f you are running inductive load like magnetic coils, DC motors, stepper motors, etc.,
make sure to change the voitage/current slowly, and never tum the power supply on or off with a inductive load connected!

Chapter 1 Grief introduction

STP series single output DC power supply is a kind of switching power supply with LED digital display. it has high precision, high efficiency, light, energy efficiency and environmental protection characteristics. Aiso it has perfect protection functions, such as over voltage, over temperature, over load etc. which can protect the testing load and power supply from damage. It can be used both as constant voltage and constant current dc power supply. What’s more, it’s constant voltage and constant current operation mode can be automatic conversion. widely used in LED testing and aging, motor manufacturing PCB manufacturing, battery, OC fan, etc. It is the first choice for school, laboratory,and Production fine.

Chapter 2 Specifications

2.1 Rated operating condition
input voltage: AC220V210% 5OHz or 110V210% 60Hz
Operating condition:Temperature: -10°C to 40°C
Relative humidity: <80%
Storage condition: Temperature:-20C to 80°C
Relative humidity: <80%
2.2 Power Output Parameters
Source effect: ≤0.2%
Current stability: ≤ 0.5%
Load stability: ≤ 0.5%
Ripple and Noise: ≤ 1% (rms)
Display accuracy: ± 0.1% ± 2 words (Can be customized for higher accuracy.)

Chapter 3 Parts and Function

3.1 Front panel (Figure 1)

1. Brand and Registered Trademark.

2. Current display: Used for displaying the output current value.

3. Current coarse regulation knob: Coarsely regulate the value of output current

4. C.C. indicator: Constant Current Indicator Light,When the power supply is under the constant current operation conditions, the indicator light is on.

5. Current fine regulation knob:Finely regulate the value of output current。

6. O.T. indicator light: Over Temperature Indicator Light. When this light is on, shows the power supply is under over temperature protection state, the power supply will has no voltage output.

7. Power switch:used to turn on or turn off the power supply.

8. Output 1: Undefined, No output terminals in default state.

9. Output 2: Undefined, No output terminals in default state.

10. Start stop switch: Undefined, No output terminals in default state.

11. Over voltage setting knob: used to set the value of over voltage protection.Please set it with a small screwdriver.

12. O.V. indicator: Over voltage indicator light. When the Light is on shows the power supply is under over voltage protection. there will be no voltage output.

13. Voltage coarse regulation knob: Coarsely regulate the value of output voltage.

14. C.V. indicator: Constant Voltage Indicator Light When the power supply is under the constant voltage operation conditions, the indicator light is on.

15. Voltage fine regulation knob:Finely regulate the value of output voltage.

16. Voltage display: Used for displaying the voltage value.

17. The model of the Switching DC Power Supply.
    3.2 Back panel

18. “+” output terminal: Positive polarity output terminal(red).

19. “ – ” output terminal: Negative polarity output terminal(black).

20. “ GND ” terminal: Ground terminal (black).

21. Fuse:Please change the fuse with a small screwdriver after getting out the plug.

22. Power Input Socket : connect with power cord to swith on the power.

23. Cool Fan: Used for Cooling. It is intelligent temperature control fan. when the inner emperature is higher than 40℃, the fan operate. While if the inner temperature is lower than 35℃, the fan will stop running.

24. Product information: Model, input, output, production date information.

Chapter 4 Detailed Explanations

4.1 Preperation before energizing
4.1.1 Please make sure the input voltage is AC220V ( 190-250V) 5OHz, or 110V ( 100-130V) 60HZ .ifthere is input voltage selection switch , please make sure the voltage you choose is the one you need , otherwise it will make damage to the power supply.
4.1.2 Make sure there is too much space for cooling, The two sides and back of the power supply should have 10cm space at least. the operating temperature should be less than 40C.
Please don’t use it in the place where has acid and alkaline gases or Excessive dust. Also please prevent the power supply from rain, sun exposure and Strenuous Vibration.
4.1.3 The Copper Diameter of the Cable should be over than 2.5mm* and it is certainly to adda control switch for it, so that it can be used to cut off the power Completely when there is a need.
4.2 Operation
4.2.1 Contact the power to the AC Power with the plug and press the power switch (7), then the indicator will be light.
4.2.2 Constant voltage setting:
Clockwise over voltage setting knob (11) and Current Knobs (3) and (5) to the maximum firstly. turn knobs(13)and(15)to the necessary value of voltage. then connect the load with output terminals (18)and{19), the power supply can be used for work now. In this time the C.V. indicator light (14)will be on. That is to say, the output voltage is constant while the output current will be changed with the load.
4.2.3 Constant current setting:
1 Adjust the coarse voltage adjustment (13). fine voltage adjustment (15) to the required voltage value, and 2 set the coarse current adjustment (3) and the fine current adjustment (5) to the minimum at the same time. At this time, the C.C. steady current indicator lights up and the voltage drops. 3 Connect the !oad according to the positive connection (18) and the negative connection (19). 4 Adjust coarse current adjustment (3), fine current adjustment (5) to the required current value, and then use. Keep C.C. steady light on during use. If you switch to C.V. regulation, you need to check whether the set current is too large and whether the voltage preset value is too low. Decrease the current setting or increase the voltage and try again.
4.2.4 Over vollage protection esting : Clockwise over voltage setting knob (11}and current coarse regulation knob(3)to the Max. regulate knobs(13){15)to the necessary value of over voltageprotection, then counterclockwise regulate knob(11)slowly until O.V. Indicator light (12) on, now the power stop working. Press the power switch(7) to turn off the power supply.
Counterclockwise regulate knobs (13) and(15) to any small value. Tum on the power supply, C.V. indictor light will be on. Regulate the voltage to the necessary value, and then connect the load to the power supply, the power supply can be used for work now. Notas: the culput vollage should be lees than the value of over voltage protection.only that, the power eupply can be opereted.
4.2.5 An example for over vottage protection setting: For example, if you want to set the over voltage protection value to 13.8V. Firstly clockwise over voltage setting knob (11) and current coarse regulation knob (3)to the Max, then press power switch(7)to turn on the power supply, adjust knobs(13) and (15) to regulate the voltage to 13.8V,then counterclockwise regulate knob(11) slowly until O.V. indicator light(12) on. Press button(7) to turn off the power supply. Counterclockwise regulate knobs(13) and (15) to the Min, after about 3 seconds, the O.V. indicator light is off. turn on the power supply again ,the C.V. indicator light(14) is on.
Regulate the voltage from 0～13.7V, and connect with the load to the power supply, now you can stat your work.
If there have some reasons to make the output voltage higher than the over voltage protection value which has been set, the power supply will be protected by over voltage protection function. There will be no voltage output to keep the power supply from damage. To avoid the over voltage protection value changing, After set the over voltage protection value, please do not regulate the knob (11) randomly. Otherwise it will cause the power supply protected in advance by mistake or no protection.
4.2.6 Cancel Over voltage protection
If you have set the over voltage protection, you can also cancel it. First, clockwise the over voltage setting knob(11)to the Max, turn off the power supply, the O.V. indicator will be slaked in 3 seconds, turn on the power supply again, the indicator light C.V. or C.C. will be on at this time. Then the overvoltage protection will be canceled.
4.3 Notes
4.3.1 The output voltage should be lower than the value of over voltage protection that has been set, otherwise there will be no voltage output.
4.3.2 To avoid the damage from the heating, please make sure the Copper Diameter of the input or output Cable should be over than 2mm 2 .Also ensure that the terminals always are tight enough , if loose there will may have damage from the heating.
4.3.3 The fan for the power supply is Intelligent one. It will work when the inner temperature is over than 40°C. If the inner temperature is less then 35°C , the fan will stop working. While if the inner temperature is over than 70°C ,the power supply will be in over temperature protection, there is no output .when the temperature is less than 65°C ,the power supply will recover to work automatically.
4.3.4 There will be a buffer for 2～3 seconds when turn on the power supply, also it has a buffer for 1～2 seconds when turn off it. Please do not turn on and turn off it frequently, or it will reduce the life of the power supply.
4.3.5 To reduce the ripple factor and safely use the power supply, please connect the GND Voltage stability: ≤ 0.2% terminal to any one of the terminal (18) and (19).
4.3.6 This power supply can be used for series and parallel. If you want to use more ones to series or parallel, please contact dealer or factory to check whether it is ok.

Chapter 5 Routine Maintenance

5.1 Fuse Change:If the fuse was burned out, please find the reason firstly then change it with the same capacity. The fuse is inside of the plug port at the back panel of the power supply. At the position of (21).
5.2 Please get rid of dust for the power supply regularly. To clean the case with a dry cloth without any organic solvent. Use the high pressure dry air to blow dust through vents. To avoid damage or dangerous, Please DO NOT open the case for cleaning.
5.3 if no use the power supply for a long time. Please completely cut off the AC power , take away the plug and keep it in a place where is dry, ventilated and avoid direct sunlight. Every six months to electrify it at least 30 minutes.
5.4 As inside of the power supply, it has high voltage circuit.To avoid electric shock accidents, Please do not open the case of the power supply if you are not a professional maintenance personnel.

Chapter 6 Common Erros and Exclusion

environment
2. Fan does not work| 2. The fan jammed or damaged, Poor heat dissipation

Note: Please contact with us if these symptoms are still there, it is our pleasure to help you

Chapter 7 Warranty Service

The warranty for the power supply is 12 months from the date of sale. The follow circumstances is not under the warranty.
7.1 Damage caused as users disassemble, modification, maintenance the power supply by themselves.
7.2 Damage caused as using the power supply without according to the operation manual.
7.3 Damage caused as the use environment beyond the scope of allowed.
7.4 Damage caused by natural disasters, grid failure and other irresistible factors.

Chapter 8 Packing List

Chapter 9 Notes

The contents of this manual are subject to change without prior notice.
Every efforts has been made in preparation of this manual to ensure the accuracy of its contents. However, should you have any question or find any errors, please contact your dealer or STP sales office.
Copying or reproducing of all or any part of the contents of this manual without STP’s permission it will has strictly prohibited.
If you have different understanding to this manual, please contact us, thank you !
Contact us：

Shenzhen Sky TopPower Co. Limited.
Address: 2F, Complex builing B,Liuxiandong Industrial Zone,Xili,Shenzhen,China
E-mail: Stp@skytoppower.com
www.skytoppower.com
Shenzhen Sky TopPower Technology Co.,Ltd

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