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Hopetech Electronics Technology HP8000 Series User Manual Download Page 25

Hopetech Electronics Technology

 

 

25 

LIST parameter setting 

Parameter 

Description 

Curr 

Loading current 

Time 

Duration, setting range 10uS ~ 50S 

Rate 

Current slew rate 0.001-3A/uS 

List mode setting: List test interface→SET 

CONT 

Continuous mode--sequential loading mode 

CNT 

Counting mode-- when it receives a trigger signal, the load 

will start  List  operation  for  CNT cycles  till  completion.  CNT 

parameters can be set from 1 ~ 9999999. 

STEP 

Step mode-- when it receives a trigger signal, the E-load will 

perform  the  next  step  according  to  the  next  setting 

parameter in the list file. 

When setting the parameters: 

press the key ADD to add one step   

press the key DELE to delete one step 

press the key PREV to go up one page 

press the key NEXT to turn down one page. 

Users can edit up to 8 sets of list files. If the E-load operation mode is List operation, the 

E-load will start a List operation when the key ON/OFF is pressed till completion or the 

ON/OFF is pressed again to stop the loading. 

Summary of Contents for HP8000 Series

Page 1: ...1 User s Manual HP8000 series PROGRAMMABLE DC ELECTRONIC LOAD Hopetech Electronics Technology 2020 11 10 Manual Edition V 2 2...

Page 2: ...it Simulation Function 41 3 9 LED Simulation Function 42 3 10 SWEEP dynamic frequency conversion scanning 46 3 11 TIMING Time measurement 48 3 12 DCR DC Resistance Measurement Function 50 3 13 Measure...

Page 3: ...Hopetech Electronics Technology 3 8 1 Communication module 73 8 2 DB9 73 8 3 Protocol 74 8 4 SCPI Communication Instruction 75...

Page 4: ...sporting the instrument use the same packaging materials used for the delivery to you Check the package contents as follows No Item Quantity 1 Electronic Load 1 2 User s Manual 1 3 RS232 Cable 1 4 Pow...

Page 5: ...tion that may result in minor or moderate injury to the operator or damage to the instrument or malfunction Indicates functions of the instrument or relative suggestion of a correct operation Usage No...

Page 6: ...ons could result in electrocution Contact your authorized Hopetech distributor or reseller in this case Handling Precautions Do not try to modify disassemble or repair the instrument This may result i...

Page 7: ...7 Be sure to connect the test lead correctly Wear gloves of rubber or similar materials during measurement For achieving the measurement accuracy it is recommended that the equipment should be operat...

Page 8: ...1 Dimension 8000 series electronic load dimension Figure 1 1 Instrument dimension Figure 1 2 Instrument dimension 1 Figure 1 3 Instrument dimension 2 1 2 Angle adjustable The 8000 series electronic lo...

Page 9: ...ram unit mm There are 2 cabinet mounting holes on the both sides of the E load After removing the gap it can be used for cabinet installation and positioning 1 4 Plug in Power Cord Connect an appropri...

Page 10: ...Hopetech Electronics Technology 10 Figure 1 7 4 types of power cord for different countries and area...

Page 11: ...ge 150V Max Power 150W Max Current 30A Channel 1 Resolution 0 1mV 0 01mA With dynamic automatic test LED List OCP EFFECT battery and short and many other test functions 8000 series E load is mainly us...

Page 12: ...EFFECT mode Load effect test mode AUTO mode 5 Actual LED simulation to test LED power 6 Voltage current ripple test Vpp Ipp 7 Professional battery test function BATTERY 8 Dynamic Test Mode DYNA 9 Hig...

Page 13: ...ry function 19 USB port upgrade procedure 20 Electrically isolated communication for I O interface RS232 485 NET network port 2 3 Front Panel The following picture is the front panel for the 8000 E Lo...

Page 14: ...con is all other keys are invalid When the E load is in the working mode press this key to select the expected load modes Press this key to switch the interface between load system configuration syste...

Page 15: ...loading value edit box 4 E load protection limit setting 5 E load conversion parameter value display Status bar icon description The remote compensation function is turned on Through the SENSE port at...

Page 16: ...picture is the rear panel for the 8000 E load Figure2 3 Rear panel Item Description 1 Cooling holes 2 0 to full scale current corresponding to 0 10V output can be connected to the oscilloscope 3 Hard...

Page 17: ...ected to the INPUT terminals Before operating the E load ensure it is well grounded To prevent damaging the E load please pay special attention to positive and negative polarities of E load during con...

Page 18: ...o step 2 when the power cord is well connected Back to step 1 when the power cord is wrongly connected 2 Check the hardware Power button at the back panel in ON state and the soft Power Switch at the...

Page 19: ...SHORT short circuit simulation function LED load simulation function SWEEP dynamic frequency conversion scanning function TIMEING time measurement function DCR DC resistance measurement function Meas...

Page 20: ...o input the current value press the key to confirm the setup constant current value and press the key to load or unload the source 2 Press the key to move the cursor position and press the key to adju...

Page 21: ...o confirm the setup constant voltage value press the button to ON OFF the loading test 2 Press the key to move the cursor position and press the key to adjust the value at the corresponding position 3...

Page 22: ...t resistance value and press the key to on off the loading test 2 Press the key to move the cursor position and press the key to adjust the value at the corresponding position 3 1 4 Constant Power Mod...

Page 23: ...y to move the cursor position and press the key to adjust the value at the corresponding position In CW mode the working loop of the instrument can be modified see parameter settings 3 2 List Operatio...

Page 24: ...nd slope of each step to meet complicated test requirements LIST parameters comprise designation of input list file input step count 200 steps at maximum step time 10uS 50S as well as setting value an...

Page 25: ...arameters can be set from 1 9999999 STEP Step mode when it receives a trigger signal the E load will perform the next step according to the next setting parameter in the list file When setting the par...

Page 26: ...ter the setting interface as shown in Figure 3 6 3 Select the desired file number by pressing the key as shown in Figure 3 6 4 Use the up down left and right direction keys to select the mode as CONT...

Page 27: ...E load input voltage and judge whether it is higher than standard voltage value If higher it indicates that OCP does not occur Repeat current stepping operation till the E load operates to the cutoff...

Page 28: ...the mode selection page press the up and down keys to select OCP and press the key to enter the OCP test interface 2 In Figure 3 8 press the key to enter the setting interface as shown in Figure 3 10...

Page 29: ...n in Figure 3 9 3 4 EFFT Function EFFT test function its principle shown in the figure below The load will be carried by three different load mode Imin Inormal Imax Each loading time continues for a p...

Page 30: ...imum current at 5A normal current at 3A delay value at 0 5S 4 The E load will carry the three setup currents separately record the corresponding voltage value and calculate V Rs Reg Observe whether th...

Page 31: ...ch mode are also different See the corresponding chapters of each mode Introduction Figure 3 12 AUTO test Figure3 13 AUTO test editing page Auto test file list AUTO setting parameters File 1 8 file av...

Page 32: ...Input voltage valid in CC CV CP CR LED mode Pow Load power valid in CC CV CP CR LED mode Res Equivalent resistance valid in CC CV CP CR LED mode Vpp Ripple voltage valid in CC CV CP CR LED DYNA mode I...

Page 33: ...e trigger Pass 5mS fail 10mS Output conditions Pass Start trigger output TRO when the test passed Fail Start trigger output TRO when the test failed End Start trigger output TRO when the test ended Di...

Page 34: ...directly start loading the next step 9 Select step N using numeric keys to set steps and set the 2nd step 10 Mode setting select OCP mode set start current to 3A and end current to 6A Select compare...

Page 35: ...E load to switch repeatedly between the two load currents This function is usually used to test dynamic characteristics of the source The principle is shown in the figure below The E load loaded the s...

Page 36: ...ctronics Technology 36 Figure 3 16 DYNA testing page Figure 3 17 DYNA Setting Page DYNA mode setting Conti In continuous mode the E load can load between high and low current in different rise rates a...

Page 37: ...every trigger signal DYNA setting parameters Parameter Description Ia Low level loading current Ta Low level current duration setting range 10uS 50S Ib High level loading current Tb High level current...

Page 38: ...ue and Ib value after receipt of every trigger signal Figure 3 20 DYNA trigger mode Trigger control When the dynamic test mode is set to pulse mode or trigger mode the trigger control is activated The...

Page 39: ...Figure 3 17 set the test mode to continuous test high current Ib 3A high time Tb 1mS low current Ia 1A low time Ta 1mS rise fall rate 3A uS 4 After the above settings are completed press to return th...

Page 40: ...Discharge stop capacity termination conditions After the above setting confirmed press the key to start testing When the set stop conditions is reached the test will be stopped and the load input sta...

Page 41: ...is completed press the key to back to the test interface press the key to start testing 5 In the above conditional test when the battery voltage is lower than 3V or the capacity is accumulated to 2 4A...

Page 42: ...put press the key on the E load front panel to select the LED function to switch the LED working state The LED equivalent circuit is as follows Figure 3 24 LED I V curve Io rated working current which...

Page 43: ...ted from the Rd LED is equivalent to the resistor Rd and the power source Vf in series Its I V curve is equivalent to the tangent of the true LED nonlinear VI curve at the operating point Vo Io as sho...

Page 44: ...oltage The specific formula is as follows The actual load value is loaded according to the following formula Vx 1 Coeff Vo Ix Coeff Vo Io Vx The output voltage of the LED driver under actual load adju...

Page 45: ...age range of 20 50V A LED light bar has 10 piece LEDs in series each single LED I V curve showed in Figure 3 27 The working voltage Vo of a single LED at 350mA is 3 44V the sum working voltage is 34 4...

Page 46: ...nce is that the duration of each current level will be determined by the sweep frequency and duty cycle Duty At the same time the scanning frequency will also gradually increase from the starting scan...

Page 47: ...n Low level load current High current Imax High level load current Starting frequency Fstart Initial scan frequency 0 01Hz 50KHz Cut off frequency Fend Cut off scan frequency 0 01Hz 50KHz Step frequen...

Page 48: ...A and then switch to 60Hz for 0 1S stepping of 10Hz In this way the load will stop to be carried until the frequency reaches 1000Hz 4 After the setting is completed press to exit to the test interface...

Page 49: ...tings Parameter Description Load mode Load mode CC CV CP CR OFF available Load Value Load Val Set the load value of current voltage etc Starting trigger setting TRIG START Trigger signal Signal VOLT C...

Page 50: ...iagram shown in Figure 3 30 2 As shown in Figure 3 30 in the TIMING interface press the key to enter the setting interface shown in Figure 3 31 3 Set the load parameters according to the values shown...

Page 51: ...function and then go to the test page Set the steps as follows 1 Press to enter the mode selection page press up and down key selection DCR press key to enter the DCR test interface figure 3 32 Figure...

Page 52: ...load resistance load power ripple voltage Vpp and ripple current Ipp 3 13 1 Voltage current resistance and power measurement The E load display the average voltage value and the average current value...

Page 53: ...o the ripple measurement is more accurate and has extremely high repeatability However the traditional measurement method will cause the switch ripple to be attenuated due to the capacity of electroly...

Page 54: ...meters of the load such as range protection Von Voff etc The parameter settings mainly contain common parameters setting of the load communication and output interface signals The save function mainly...

Page 55: ...e power products is power up the power product may latch protection In this case you d batter set Von on Then E load will load when power voltage is higher than this value by setting VON value Please...

Page 56: ...e under test But in some special cases the source loaded dosen t meet your expectations you can set the corresponding parameters manully according to your source type and the E load will load it accor...

Page 57: ...g Remote sense OFF Remote sense function OFF ON Remote sense function ON Key sound OFF Key sound function OFF ON Key sound function ON Language EN In English CN In Chinese Shortcut Call OFF Shortcut c...

Page 58: ...sting when it fails Stop stop testing when it fails COLOR WIN Green font Green Yellow font yellow Blue font blue Back Color Light gray light gray background Dark gray dark gray background Black black...

Page 59: ...ompensation started the wiring must be the same as above otherwise the voltage detection function will be fail The REMOTE prompt will be displayed in the status bar of the display 4 2 2 Shortcut Call...

Page 60: ...on after the test failed For example set the output mode to Level the output condition to Qualified and failed action to Stop The TRO port level will change from high to low when the test is qualified...

Page 61: ...t mode 2 the E load provides a quick call function that is In Menu page select the item CONFIG TEST SETTING SHORTCUT CALL as shown in Figure 4 8 after the shortcut call enabled you can directly use th...

Page 62: ...he input will automatically switch to OFF status The E load LCD will display OTP and the WARNING indicator lights up 5 1 Over voltage protection OVP The E load provides overvoltage protection When the...

Page 63: ...pter 4 1 System Settings Power Protection the E load will display OVER POW the E load will be immediately OFF and the buzzer will sound Press any key to cancel the beeper Figure 5 3 OPP Page 5 4 Over...

Page 64: ...gure 5 4 OTP Page 5 5 Input Voltage Reverse Protection RV When the polarity of the input voltage is reversed the E load will display REVERSE the E load will be immediately OFF and the buzzer will soun...

Page 65: ...ernal control signal output and other control units to complete the automatic test 6 1 I O Interface Figure 6 1 I O interface 1 EXV external power supply interface 2 GND ground 3 EOC test completion s...

Page 66: ...he test After the test completes EOC outputs low level 4 The TRO is the trigger output port In the modes like AUTO OCP which needs to judge the output mode can be set to output the signal required by...

Page 67: ...1 5V 30A 7 5V 15A 1 5V 30A Min rise time at full scale current 10us CV mode Range 15V 150V 15V 150V 50V 500V 15V 150V Resolution 0 2m V 2mV 0 2m V 2mV 0 7m V 7mV 0 2m V 2mV Accuracy 0 05 0 025 FS CC m...

Page 68: ...ion 32A 16A 32A Overvoltage protection 158V 525V 158V Over temperature protection 85 Specification Size length width height 358mm 214mm 88mm No legs Weight Kg 3 8Kg Model HP8201B HP8301 HP8301B HP8301...

Page 69: ...1mV 0 3m V 3mV 1mV 0 1m V Accuracy 0 025 0 025 FS 0 025 0 025 FS Read back current Range 1 5A 15A 3A 30A 1 5A 15A 6A 60A Resolution 0 01 mA 0 1m A 0 02 mA 0 2m A 0 01 mA 0 1m A 0 04 mA 0 4m A Accurac...

Page 70: ...n 16Bits Accuracy 0 1 0 0008R CW mode Range 3000W Resolution 16Bits Accuracy 0 1 0 1 FS LED mode bandwidth 100KHz Rd coefficient 0 001 1 Dynamic mode Ta Tb 10uS 50S Res 2 uS Accuracy 1uS 20ppm Rise fa...

Page 71: ...e 0 1 15V 0 1 150V Resolution 0 1mV 1mV Accuracy 0 03 0 02 FS CC mode Range 0 24A 0 240A Resolution 0 5mA 5mA Accuracy 0 03 0 05 FS CR mode Range 0 1 7 5k Resolution 16Bits Accuracy 0 1 0 0008R CW mod...

Page 72: ...0 15V 0 150V bandwidth 10Hz 250KHz Accuracy 0 03 1mV 0 03 10mV Protection range Overpower protection 600W Overcurrent protection 24 3A 243A Overvoltage protection 15 2V 152V Over temperature protectio...

Page 73: ...ommunication interfaces to communicate with a computer for selection including RS232 RS485 and LAN i Press any key on any work interface to enter the parameter setting interface ii Press the left or r...

Page 74: ...he parameter setting interface Ii Press the left or right button to move the cursor to the address box under the Communication setting bar Iii Press the number keys to edit After editing press ENTER t...

Page 75: ...ample Trigger test Send TRG Back no 3 INPut Meaning input on or off 0 off 1 on Example Input on Send INPut 1 Back no 4 CURRent RANGe Meaning set current range LOW HIGH 0 1 Example set low current rang...

Page 76: ...ue to 3A uS Send CURRent PROTection 3 Back no 10 POWer PROTection Meaning set power protection value Example set power protection value to 150W Send POWer PROTection 150 Back no 11 VOLTage ON Meaning...

Page 77: ...alue in CV mode Example Set the CV working mode voltage to 10V Send VOLTage 10 Back no 16 POWer Meaning set the power value in CW mode Example Set the CW working mode voltage to 100W Send POWer 100 Ba...

Page 78: ...t range Example read the current range Send CURRent RANGe Returns 0 1 23 VOLTage RANGe Meaning read the voltage range Example read the voltage range Send VOLTage RANGe Returns 0 1 24 CURRent SLEW RISE...

Page 79: ...o 29 DYNamic HIGH DWELl Meaning set the duration for high level loading current in dynamic mode Example set the duration 5mS for high level loading current in dynamic mode Send DYNamic HIGH DWELl 5 Ba...

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