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1. PROGRAM 9 2 3 4 5 6 7 3 9 10 Sequence Save Group 81 82 83 84 85 86 87 88 89 90 PRR GRANTY 1 2 3 4 5 6 7 8 9 10 Sequence Save Group 91 92 93 94 95 96 97 98 99 100 Example In Program 1 sequence 1 correlates to instrument settings stored in memory location 1 In Program 5 sequence 5 correlates to instrument settings stored in memory location 45 In Program 8 sequence 10 correlates to instrument settings stored in memory location 80 Within each program sequences can be activated or deactivated skipped but they run in order from 1 through 10 Therefore when setting and storing instrument settings into the memory keep in mind the order of which you want them to be recalled and run in the automatic test program For example suppose you want to run a test program that simulates the load profile below CC 3 8 A CV 2 8 V CR 2 Ohms CC 1A CC 0 5 A 1s 0 5s 1 55 2 55 0 255 0 5s 0 6s Configure and save settings into memory according to the table below Settings Mode of Operation Setting Value Store to Memory location 61 CC 1A 1 CV 3V 2 CW 0 5 W 3 CR 20 4 CC 3 8A 5 CC 0 5A 6 CV 2 8 V 7 Refer to section Save Recall Instrument Settings in section 3 3 SYSTEM Menu for details on saving settings into internal memory Note Ifthe program requires more than 10 sequences each program can be linked chained
2. 1 5 Front Panel Overview Tran List 6 Batt Prog Pa K Info Sys Config Trig Figure 3 Front Panel Front Panel Description Power On Off switch Local button Shift button Numeric keypad CC OCP button CW OPP button Enter Recall settings button Input On Off and key lock button CR button OOOO CV Setup button Navigation arrow keys Input terminal Rotary knob VFD display ESC button 1 6 Rear Panel Overview Figure 4 Rear Panel Rear Panel Description Cooling fan vent Remote control port not used RS232 Interface Current Monitor BNC output USB Interface GPIB Interface AC input receptacle Fuse box Line voltage selector Voltage fault VF output terminal Input On Off ON control terminal External trigger input terminals External programming input terminals GO Remote sense terminals 1 7 Display Overview OFF CC CV CR CW Rmt Addr SRQ Error Trig Sense Prot Rear Auto 80 000V 12 000A CC 85 000 V Figure 5 Display Screen Display Description O Measured input voltage O Measured input power Settings Display Displays parameter settings such as CC CV CR CW Measured input current OFF Indicates input is disabled
3. cc Indicates constant current CC operation CV Indicates constant voltage CV operation CR Indicates constant resistance CR operation CW Indicates constant power CW operation Rmt Indicates remote mode Addr Indicates remote communication activity SRQ SRQ service request indicator Error Indicates an error has occurred Trig Indicates waiting for trigger Sense Indicates remote sense enabled Indicates protection trip for over voltage over power or over current Prot Rear Indicates external analog control is enabled Auto Indicates voltage auto range is enabled i Indicates key lock is enabled Shift Indicates shift mode for access to secondary button functions 2 Getting Started Before connecting and powering up the instrument please review and go through the instructions in this chapter 2 1 Input Power and Fuse Requirements Input Power The load has a selectable AC input that accepts line voltage input within Voltage 115 V 10 or 230 V 10 Frequency 47 Hz 63 Hz Use the line voltage selector switch in the back to switch between 110 V and 220 V operation 110 or 220 Switch LLL POR ra Figure 6 Line Voltage Switch Location 10 Disconnect all cables including the power cord from the instrument when changing the instrument s line voltage After changing the line vo
4. Note The external analog control does not have to be turned ON from the menu for these pins to function as intended To avoid accidentally turning ON the load s input keep these pins opened with nothing connected when external On Off control is not used or needed Voltage Fault Indicator The terminal pin labeled VF in the rear panel outputs a 5 VDC signal under normal operations When OVP LRV or RRV conditions occur the pin will output O VDC to indicate the protection trip Current Monitor The rear panel has a BNC output labeled Monitor for current monitoring It will output a 0 10 V analog signal which reflects O full range of the input current accordingly You can connect an external voltmeter or an oscilloscope to display the input current s change 3 5 Short Operation The electronic load can simulate a short circuit at its input During front panel operation press O and then to switch the short on off state Short operation will not affect the present setting When turning off the short state the load returns to the original set state The actual value of the electronic load in short operation depends on the mode and range that is active when the short is turned on In CC or CR mode the maximum short current is 120 of the current range In CV mode short means setting the load s constant voltage to be O V In short operation mode you can measure the maximum short current Amax or DC current ADC of the
5. Follow the steps below to enable the timer display 31 1 From the SYSTEM menu browse and select Displ and press The following screen will appear DISPLAY ON TIMER On Off default 2 Select On to enable the timer and Off default to disable Press to confirm E 3 Press twice to exit the menu The timer will now be displayed like the following 80 000V 12 000A 0 00 W 0 0000 S CC 1 000A 4 When input is enabled ON the timer will start counting the time When input is disabled OFF the timer will reset itself to a value close to O seconds Remote Interface Setup The instrument has RS232 USBTMC and GPIB remote interfaces available for remote communication Follow the steps below to select and configure each interface Note The RMT indicator will appear on display when the instrument is successfully connected to a PC remotely through any remote interface Keys on the front panel will be locked until the Local O the instrument is in LOCAL mode To return to LOCAL mode from the front panel press RMT indicator will disappear when the instrument is in LOCAL mode 32 From the SYSTEM menu browse and select Communication and press The following screen will appear COMMUNICATION RS232 USBTMC RS 232 Follow the steps below to configure the instrument for RS 232 operation 1 Select RS 232 and press to set to RS 232 for remote communication The following display will be shown RS
6. If there is a failure fail will be indicated in place of pass At this point you can press V to view which sequences were tested and passed failed It will be indicated like the following OFF CC 10 000V 0 000A PRGO1 OOOOOO4Y2Y_ pass Y indicates the tested sequence s that passed failed If a sequence has been skipped in the test its sequence number will be indicated instead of a Y Trig 7 To stop a running program at any time press once To completely exit the E automatic test function press a few times until the load returns back to the normal display OCP Test Function The load has a built in OCP test function that can be used to automate testing for OCP conditions The load can save up to 5 OCP test programs into internal memory which can be recalled and run The OCP Test program requires the following parameters be configured before it can be run Voltage On Level This is the minimum voltage level the load measures before the start of the test Voltage On Delay This is the delay time from when the Voltage On Level is reached to the actual start of the test Current Range This specifies the current range of the test All models have two current ranges with the lower range allowing for higher resolution This value will also limit the maximum current settings for other parameters configured for the test program 69 Start Current This is the starting current value when OCP test begins The settabl
7. or rotary knob to set the value for current range then press to confirm 5 The load will then prompt to enter a value for File Step which is the total number of steps for the list Use the numeric keypad or rotary knob to set the value then press to confirm Valid range is 2 84 6 The load will prompt to enter values for each steps parameters starting with the step level Use the numeric keypad or rotary knob to enter a value 55 EDIT LIST Step 001 Level 0 0000A 7 Press and it will prompt to enter the slew rate of the step If High Rate was selected earlier units will be in A us Otherwise it will be in A ms EDIT LIST Step 001 Rate 0 0001A us 8 Press and it will prompt to enter the step with Valid range is 20 us 3600 s Enter a value and then press to continue EDIT LIST Step 001 Width 0 00002S 9 The load will prompt to enter parameters for the next step Follow steps 6 8 to enter the values for the step s parameters Once all steps parameters are entered the load will prompt for the Repeat Count which sets how many times to repeat the list program Valid range is 1 65535 Press to continue 10 The load will prompt to select the memory location to store the list parameter information There are seven total save locations Enter a value between 1 and 7 then press to confirm The display will return to the List menu Note If List mode is enabled the Edit menu will be lo
8. INSTRUCTIONS related instructions or procedures CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury Table of Contents Safety SUMMA Y is AS AAA AAA AA A i Compliance Statements vii GE Declaration OF CONTO Ml Vocioscitani iii aida a AE E A OAE EA id viii 1 General Infor iia cdo nr daa dni 1 1 1 ProdUct OVErViEW niricitetiiie i a a a a a a aa ee tedurtedlan 1 1 2 Package Content mitad ti e a aa E adidas 2 1 3 Product DIMENSION Sarna id 2 1 4 Rackmo n t Installaatio tarro beets 5 1 5 Front Panel Overview ata 6 Front Panel D SCrIPtiOn ccccceesssscceccceceseenssnscecececssssnesuaaeceseesssssenesasaeseseceseesesaaeaesecsesseeneaaaaes 6 1 6 Rear Panel OvervieW AA O II A A 7 Rear Panel Description a das 7 1 7 Display OVNIs ai AO ase 8 Display DESCIIPUION 2 AAN AAA A A AA 8 A A O AO 10 2 1 Input Power and Fuse REQuire Me ntS cccccccccccessssssssececeesesssesseseeeceeseseeesssssaeeeseeeess 10 Input POW M iii 10 FUSC REQUITCINONES oead anaiei aai ieia ieee siseiescecaidecniscdbesdecttadesisbsiescesstvecniacts cieesstaaes e 11 FUSE Replacement Hscises oss ease oes oie e recio lb e e Bio 11 2 2 INPUL CONMECUIONS viciado 12 2 3 Preliminary Check a us Cia Se A AS es 13 A AA SE a gee eee ae 13 INPUT CROCK coclear iii chdecttbs a N 14 Check Model and Firmware Version ruda ii Add 15 3 FrontPanel Operation ss ii oda 16 3 1 Menu Options strict td 16 SUSE UA
9. This option will only appear after CR_LED has been enabled from the CONFIG menu 6 While in CR mode use the numeric keypad or rotary knob to enter a value for Rd the resistance 7 Now that both Vd and Rd are configured turn ON the input by pressing f Remote Sense Remote sense can be used to compensate for voltage drops up to 1 V due to resistance from test leads connected to your device under test DUT thus providing more accurate voltage measurement The instrument is setup with remote sense disabled by default To enable and use remote sense follow the steps below 1 Power OFF the load and disconnect all leads cables connected to it 2 Connect the sense terminals in the rear panel to the DUT source terminals 3 Then connect the DUT source terminals to the load s main input terminals The setup should look like the figure below Rear Panel Terminals PO D KOKO pa we s 50000 Figure 12 Remote Sense Connection Setup 45 7 To enable remote sense go to CONFIG menu and select Remote Sense and press 8 Select On to enable or Off to disable remote sense The default is Off 9 Once it is turned on the Sense annunciator will appear at the top of the display Sense 80 000V 12 000A 0 00 W v60000 05 CC 1 000A The electric potential on the positive terminal of Sense connector must be higher than the negative terminal External Analog Control and Monitor Exter
10. To access this menu go into CONFIG menu and select Protect The following display will show PROTECT MENU Max P A Limit P Limit Time Overcurrent Protection OCP The electronic load includes both hardware and software overcurrent protection features Hardware OCP The electronic load s maximum input current will be limited to approximately 110 of the current range Once the hardware OCP is triggered the status register s OC bit will be set When the hardware OCP is removed the status register s OC bit will be reset Hardware overcurrent protection will not affect the electronic load s input on off state Software OCP Users can set the electronic load s software OCP value with the following steps 1 Goto CONFIG menu and select Protect Then press f 2 Select A limit and press 3 To enable software OCP select On and press The default is Off 4 If enabled ON the load will prompt to enter a value for Point Use the numeric keypad or rotary knob to enter the OCP current limit value then press The valid range depends on the model of the load 38 5 It will then prompt to enter a value for Delay This is the protection trip delay which is the amount of time to delay from when the input has reached the limit before triggering OCP Use the numeric keypad or rotary knob to enter a value then press to confirm change The valid range is O 60 seconds NOTE Software OCP will disable the input if
11. to another program after it has completed Shift Prog 1 Setup the program parameters From the front panel press and then to access the PROGRAM menu It will look like the display below PROGRAM Run Recall 2 Select Edit and press The first parameter to configure is the Active Sequence EDIT PROGRAM Active Sequence 0987654321 This allows activating or deactivating a sequence in the program Sequences that are activated will be part of the test program Deactivated sequences will be skipped To activate a sequence press the number corresponding to the sequence using the Short numeric keypad For example if sequence 1 through 5 are to be activated press Tran List Save Batt The activated sequence numbers on the display will change to Y 62 indicating that they are active and will be run as part of the test program In this example the display will look like below EDIT PROGRAM Active Sequence 09876YYYYY To deactivate press the corresponding number with the numeric keypad again The sequence number on the display will change back from Y to the actual sequence number 3 Press to continue The next parameter to configure will be the Pause Sequence This allows the test program to pause after running any selected sequence For example if the test program should pause before running sequence 2 and 4 use the Short List numeric keypad and press and so that number 1 and 3 in the Pause Seque
12. which will be lit when selected Shift Tran 2 From the front panel press O and then The following display will show TRANSITION On Off 3 To enable transient operation select On and press The following display will show 51 TRANSITION Continuous Pulse Toggle 4 5 Select the transient mode Continuous Pulse or Toggle Press For CC mode the following display will show For all other modes skip to step 9 TRANSITION High Rate Low Rate 10 Select either High Rate or Low Rate These options configure the settable slew rate range If High Rate is selected users can adjust the slew rate of the transient in the A us range If Low Rate is selected users can adjust the same in A ms range The settable range will vary depending on the model The load will then prompt to enter a value for Rise Up which is the slew rate for a rising transition between the two levels of the transient Use the numeric keypad or rotary knob to set the value then press to confirm The load will then prompt to enter a value for Fall Down which is the slew rate for the falling transition between the two levels of the transient Use the numeric keypad or rotary knob to set the value then press to confirm The load will then prompt to enter a value for Level A This is one of the two load levels for transient operation and as such will be labeled as level A Enter a value within the load s full range then press The n
13. A A A a 16 CONFIG MON Di AAA A AAA OPER OYE RR BAERS 16 How to Navigate the MeCNu cccssccccccccssssesssscccececscssssneaasaesecsesseeeassaesesecscsseeeaasaeseesessseseanaaes 17 3 2 Configure Operation Modes CC CV CR CW ccccssccesssecesssecesseeessseecssseeesseeeesseeeesees 18 Constant Current CC Mode viccccccccccccsecssssssscccccesesecssccsscscceceescsscsssssceesesecsecssesscessesesesntssssssens 18 Gonstant Voltage CV Mode 0 AAA A ORE Eia 20 Constant Resistance CR Mode uu ccccccccesssscccccecessessscsccssceceesenscsssssccecesessecsssssseeseeesesntssssssens 22 Constant Power CW MOC icccccccccccsscescssssccccceccsscssssscsececessenscsssssecesesessectssssceeseseesentasssssens 23 Setting CO CV CR CW WMO eR ti can EEE EE EEA EAEE REA A 25 3 3 SYSTEM MENU siene ect A Oat a tg 25 Restore Factory Default Settings cccccceessssccccecscessesensecececcessseceasaascesecsceesenesaeaeseesessseneaaaaes 25 Configure Power On Stateira e E a aa E A TE E 27 Load ON KNOD a dt A AR a aa 27 Config re Trigger SOUL CE ta aE AAA AAA 27 Save Recall Instrument Settings ccccccccsscccesssseesssceesseceesseceesseceessececssesecsseceesseceeseeceessecesees 28 Display Input O TIME ci id cis iii desd dai aia is 31 Remote Interfaces e e eo Bed 32 3 4 ECON FG Mena ai o od 35 VON OperatioM iii a aes 35 Configure Protection Settings Spee mesinin aieiai ieie iei nae aa REE aiL EREE AERES a RETE aiaei 38 Configure Timed INPU t ren td a e 42
14. Asus Afus t Figure 9 The Load s Operating Range with Von Latch set to ON When Von Latch is OFF the electronic load will begin sinking current if the input voltage exceeds the Von voltage When the input voltage drops below the Von voltage value the electronic load will still continue sinking current and the input remains on 36 t Figure 10 Von Latch OFF The Load s Operating Range with Von Latch set to OFF To set the Von modes from the CONFIG menu select Von and press The following will be displayed VON LATCH On Off Use the lt and gt keys to select between On or Off and press confirm selection Afterwards you will be prompted to enter the voltage point of Von Use the numeric keypad or rotary knob to change this value 37 Configure Protection Settings The electronic load has the following protection functions Overvoltage protection OVP overcurrent protection OCP overpower protection OPP overtemperature protection OTP and local and remote reverse voltage protection LRV RRV The instrument will act appropriately once any of the above protections are active You can press any button on the front panel to restore the protection function For example if the electronic load triggers the overtemperature protection the buzzer will alarm the input will automatically turn off and the mainframe VFD will display OTP Some OCP and OPP features can be configured from within the Protect menu
15. CC operation mode 2 Constant voltage CV operation mode 3 Constant resistance CR operation mode 4 Constant power CW operation mode Constant Current CC Mode In this mode the electronic load will sink a current in accordance with the programmed value regardless of the input voltage Load Current Setting Current gt Load Input Voltage V Configure CC Parameters There are several parameters that should be setup prior to operating in CC mode Press ocp Shift Setup cc Cv so that it lights up then press O and TE to access Setup for CC mode The setup menu will be shown Constant Current Range 60 000A 18 The setup parameters are Range High Voltage limit Low Voltage limit and Rise Fall time Use the V A key to select each parameter and use the numeric keypad to change the value Press to confirm the change Range Use the numeric keypad to change the range This value will also act as a limit to how much current the load can be configured to The adjustable ranges vary depending on the model See specifications for details High This parameter refers to the voltage high limit for the automatic test mode During automatic test mode the device under test DUT must be operating below the configured value for the test to PASS upon completion If the DUT operates above the configured value the test will FAIL upon completion Note This parameter is used for Automatic Test Function ONLY
16. Figure 8 Slew Rate Measurement Between the 10 and 90 region the slew rate can be measured by observing the steepest slope portion In case of very large load changes e g from no load to full load the actual transition time will be larger than the expected measured time For this reason the firmware allows the user to program slew rate values outside of the specified slew rate ranges The minimum transition time for all programmable slew rates is also limited in cases where the transition from one setting to another is very small due to bandwidth limitations of the load Constant Voltage CV Mode In this mode the electronic load will attempt to sink enough current to control the source voltage to the programmed value 20 Load Volt Setting Input Voltage Load Current Configure CV Parameters There are several parameters that should be set up prior to operating in CV mode Press Setup Shift Setup cv so that it lights up then press and to access Setup for CV mode The setup menu will be shown Constant Voltage Range 60 000V The setup parameters are Range High Current limit and Low Current limit Use the V A key to select each parameter and use the numeric keypad to change the value Press to confirm the change Range Use the numeric keypad to change the range This value will also act as a limit to how much voltage the load can be configured to The adjustable ranges vary depending on the m
17. Series DC Electronic Loads are versatile instruments used for static and dynamic testing of DC power supplies batteries DC to DC converters and battery chargers Other applications include fuel cell and photovoltaic cell test The DC load can be used in one of the following operation modes constant voltage CV constant current CC constant resistance CR or constant power CW A wide range of dynamic loading applications can be simulated through user programmable slew rates load levels duration and conducting voltage The DC load can be remotely programmed via the USB GPIB or RS 232 serial interface Versatile triggering options allow the dynamic load behavior to be synchronized with other events A battery test mode is provided that will measure the ampere hour Ah characteristic of a battery Shorts can be simulated by either the front panel or custom programming The DC source or other components can be protected from excessive voltage current or power which will cause the DC load to shut down if excessive levels or reverse polarity are detected Features e CC CV CR CW operating modes e High Resolution Display e Transient mode up to 25 kHz e List mode function e Measurement speed up to 50 kHz e Remote sense function e Built in battery test function e OCP and OPP auto test function e CR LED function e Store recall up to 100 setups e RS232 USBTMC GPIB interfaces e Analog current control and monitoring e Adjus
18. and press Select V Range and press 42 3 To enable voltage auto range select On and press To disable select Off and press to confirm the change Measuring Rise and Fall Time The instrument can measure the rise or fall time from a specified start and stop voltage level of the measured input This feature requires the display timer to be enabled first To enable timer please follow the instructions in the Display Input On Timer section of 3 3 SYSTEM Menu To setup this measurement follow the steps below 1 Goto CONFIG menu and select Measure Then press 2 Select TimeV1 and press The load will prompt to enter a value Use the Enter numeric keypad or rotary knob to set a value and press to confirm This is for the start voltage level When the measured input voltage reaches this level the timer will start 3 Now select TimeV2 from the Measure menu and press The load will prompt to enter a value Use the numeric keypad or rotary knob to set a value and press to confirm This is for the stop voltage level When the measured input voltage reaches this level the timer will stop The time on display will show the time difference between the measured start and stop voltage level Measurement Averaging Filter The measurement averaging filter can be adjusted Increasing the averaging will provide more accurate readings but slower measurement update rate Decreasing the averaging will provide faster measu
19. circuit to be tested which defines the voltage impulses expected and required insulation clearances These categories are Category CAT I Measurement instruments whose measurement inputs are not intended to be connected to the mains supply The voltages in the environment are typically derived from a limited energy transformer or a battery Category II CAT 11 Measurement instruments whose measurement inputs are meant to be connected to the mains supply at a standard wall outlet or similar sources Example measurement environments are portable tools and household appliances Category III CAT Ill Measurement instruments whose measurement inputs are meant to be connected to the mains installation of a building Examples are measurements inside a building s circuit breaker panel or the wiring of permanently installed motors Category IV CAT IV Measurement instruments whose measurement inputs are meant to be connected to the primary power entering a building or other outdoor wiring Do not use this instrument in an electrical environment with a higher category rating than what is specified in this manual for this instrument You must ensure that each accessory you use with this instrument has a category rating equal to or higher than the instrument s category rating to maintain the instrument s category rating Failure to do so will lower the category rating of the measuring system Electrical Power This instrument is intended to b
20. or the rotary dial to enter the desired setting value Use the lt and gt keys to change the cursor position to adjust different digits Press to enable the input PF 0 NP 3 3 SYSTEM Menu All setup procedures and settings explained in this section can be accessed from the SYSTEM Shift Sys menu To access this menu press and SYSTEM MENU Initialize Power ON Buzzer Restore Factory Default Settings All instrument settings can be reset back to their factory default values by doing the following 25 Note Restoring the instrument to factory default will change all current instrument settings and parameters back to their default values 1 From the SYSTEM menu select Initialize and press a 2 The following screen will display Select Yes to restore default settings or No to cancel INITIALIZE SYSTEM NO YES The following table lists some of the factory default settings Table 3 Factory Default Settings Communication RS232 4800 8 N 1 NONE Display On Timer off Trigger Source Manual Protocol SCPI Von Latch A Limit Off Memory Group 0 Power On RST Buzzer On Load On Knob Update On Timer Off Voltage Auto Range On Averaging Filter 2414 Remote Sense Off External Program Off 26 Configure Power On State The initial Power On state of the load can be configured by following the steps below 1 From the SYSTE
21. program Select between 1 10 with the 65 numeric keypad or rotary knob Then press to confirm and save all settings to the selected program number The display will not return to the PROGRAM menu Configuring Recall and Run Program The following is a procedure to recall and run a saved test program Recall a Program Shift Prog 1 Press O and then to enter the Program menu 2 Select Recall and press The display will be shown as below RECALL PROGRAM Recall Program File 3 Use the numeric keypad or rotary to select the program number to recall from memory Enter a number between 1 and 10 Then press 4 The display go back to the Program menu To view the recalled settings select Edit and press Note If you recall a program from an empty location it will give you an error message and all settings viewed under the Edit option will be reset to default values Run a Program Shift Prog 1 Press O and then to enter the Program menu 2 Make sure the program you want to run has already been recalled from the previous instructions Select Run and press 3 The display will show the following 66 OFF CC 10 000V 0 000A PRGO1 STOP PRGO1 from this display indicates which program has been loaded to run Depending on which program is recalled it will show PRGO1 PRG10 STOP indicates the program is not running Trig Now press once to start running the program The display will chan
22. signal may also be used as a trigger signal when sent across these terminals If using a TTL signal the unit triggers off of a falling edge Rear Panel Terminals NOTE Signal pulse width must be gt 10 us Hold Hold trigger This behaves similarly to Bus trigger however the TRIG IMM command is used instead Bus Bus trigger Remote commands TRG and TRIG IMM can both be used to send a trigger With Bus trigger multiple devices can be triggered at the same time when communicating via GPIB interface Timer Timer trigger A trigger will be sent periodically based on the set time Time can be set from 0 01 s to 9999 99 s 3 Select one of the options For timer trigger use the numeric keypad or rotary knob to set the time Es 4 To exit the menu at any time press twice Save Recall Instrument Settings 28 The instrument can save up to 100 instrument settings in non volatile memory Memory is allocated in 10 different storage groups group O to 9 and each group has 10 memory locations to store settings 0 to 9 These memory locations are referenced by numbers 1 100 When saving an instrument setting numbers 1 to 100 can be selected However when recalling an instrument setting the group must be selected first and then the numeric keypad buttons 1 through 9 and O which refers to the 10 locations of the selected storage group Below is the table illustrating the storage group and memory location structur
23. usually used to test the power supply s performance under continuous changing load conditions Figure 14 shows the current waveform of continuous transient operation mode 49 2 0ms 3 0ms TRIG Figure 14 Continuous Transient Operation Current Waveform Pulse In this mode the electronic load generates a transient pulse of programmable width when pulse transient operation is in effect In pulse mode you can set A B level the pulse width and A B slew rate The electronic load will automatically switch to A level after maintaining A width time Then it will switch to B level The electronic load will not switch to A level again until the instrument receives a trigger signal The following figure shows the current waveform in pulse transient operation SA TWD l mo IL p 10ms i 10ms TRIG TRIG Figure 15 Pulse Transient Operation Toggle In toggle mode the electronic load will switch between A level and B level when receiving a trigger signal The following picture shows the current waveform in toggle transient operation 50 TRIG TRIG Figure 16 Toggle Transient Operation To enable and setup transient mode follow the steps below 1 First select the load s mode of operation which will determine which type of transient ocp Setup OPP operation will be configured Press or to select between CC CV CW or CR mode Verify the selection by the backlight behind its corresponding button
24. 1 Recall the settings from memory by following the steps above 2 Then from the OCP Test menu select Run and press The display will show the following 71 OFF CC 10 000V 0 000A 0 00W 0 0000A Stop Trig 3 Press to start the test When the test is running Run will be indicated in place of Stop When the test ends either Pass or Fault will appear next to Stop Trig 4 To stop the test at any time press OPP Test Function The load has a built in OPP test function that can be used to automate testing for OPP conditions The load can save up to 5 OPP test programs into internal memory which can be recalled and run The OPP Test program requires the following parameters be configured before it can be run Voltage On Level This is the minimum voltage level the load measures before the start of the test Voltage On Delay This is the delay time from when the Voltage On Level is reached to the actual start of the test Current Range This specifies the current range of the test All models have two current ranges with the lower range allowing for higher resolution This value will also limit the maximum settings for other parameters configured for the test program Start Power This is the starting power value when OPP test begins Step Power This is the size of the step power as the test runs from the Start Power to End Power The test will only run through in steps if the measured input voltage is greater than the
25. 232 4800 8 N 1 N NONE 2 4800 is the baud rate 8 is the data bits N is the parity 1 is the stop bit Addr is for address 3 Use the lt and gt keys to select between each serial settings and use V A keys to change the settings 4 The following setting options that can be used Baudrate 4800 9600 19200 38400 57600 115200 Data bits 8 Parity N None E Even O Odd Stop bit 1 Flow control NONE CTS RTS XON XOFF Note The default is 4800 8 N 1 NONE Setting the baud rate to 115200 may provide unstable results during remote communication Select a lower baud rate if communication errors occur 33 5 All serial settings must match with the settings configured on the PC in order for communication to link successfully USBTMC A USB Type A to Type B cable i e USB printer cable is required to connect the USB port in the rear panel to a PC Follow the steps below to setup the load for remote communication 1 From the SYSTEM menu browse and select Communication and press 2 Select USBTMC and press to set USBTMC for remote communication 3 Install the USB driver For Windows 7 and 8 users this may install automatically For other users visit www bkprecision com to download the driver Note Users who have LabVIEW or NI VISA installed will automatically have this driver in their system In this case driver download is not required GPIB Follow these instructions to sel
26. 300 mQ Input Terminal 150 kQ 300 kQ 1MO Impedance 81 Notes 1 Fast pulse trains with large transitions may not be achievable 2 The slew rate specifications are not warranted but are descriptions of typical performance The actual transition time is defined as the time for the input to change from 10 to 90 or vice versa of the programmed current values In case of very large load changes e g from no load to full load the actual transition time will be larger than the expected time The load will automatically adjust the slew rate to fit within the range high or low that is closest to the programmed value Supplementary Characteristics Memory capacity 100 Groups Recommended calibration period Once per year AC Input selectable by switch on the rear panel Option 1 220 V 10 50 60 Hz Option 2 110 V 10 50 60 Hz Cooling method Fan cool Environmental conditions This instrument is intended for indoor use in a pollution degree 2 environment Environmental limits are as follows Operating temperature 0 to 40 C Storage temperature 10 to 60 C Humidity Indoor use lt 95 82 Dimensions and weight Dimensions W x H x D excludes Model front and rear rubber bezels and side Weight handle 8600 218 x 90 x 387 mm 4 5 kg 8601 218 x 90 x 387 mm 4 5 kg 8602 218 x 90 x 387 mm 4 5 kg Environmental Conditions This instrument is designed
27. BK PRECISION Model 8600 8601 8602 Programmable DC Electronic Loads USER MANUAL 52000 es y 0000 gt E eA 5 0000 S v K Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be followed during all phases of operation service and repair of this instrument Before applying power to this instrument e Read and understand the safety and operational information in this manual e Apply all the listed safety precautions e Verify that the voltage selector at the line power cord input is set to the correct line voltage Operating the instrument at an incorrect line voltage will void the warranty e Make all connections to the instrument before applying power e Do not operate the instrument in ways not specified by this manual or by B amp K Precision Failure to comply with these precautions or with warnings elsewhere in this manual violates the safety standards of design manufacture and intended use of the instrument B amp K Precision assumes no liability for a customer s failure to comply with these requirements Category rating The IEC 61010 standard defines safety category ratings that specify the amount of electrical energy available and the voltage impulses that may occur on electrical conductors associated with these category ratings The category rating is a Roman numeral of I Il Ill or IV This rating is also accompanied by a maximum voltage of the
28. Enables Disables CR LED function Remote Sense Enables Disables remote sense Ext Program Enables Disables external analog control 16 How to Navigate the Menu Before using the instrument it is important to be familiarized with its menu structure and learn how to view or change settings and parameters Follow the steps below to guide you in selecting menu options 1 Follow the instructions above to access the System or Config menu lt 2 The selected item will be blinking Use and gt keys to move through the menu selections 3 When the desired menu section is blinking press to access its menu settings 4 Below is the display when SYSTEM is selected SYSTEM MENU Initialize Power On p lt 5 The selected item will be blinking Use and gt keys to move through the menu gt on the right side of the display that means there are more lt items When there is a menu items available to select from Similarly a will appear on the left side of the display when there are menu items to the left 6 There may be parameters or options to select within each menu item Follow the same instructions as described in the previous steps to select them Some settings can be changed by using A V arrow keys To save changes to a setting press 7 To exit the menu at any time press 17 3 2 Configure Operation Modes CC CV CR CW The electronic load can work in the following modes 1 Constant current
29. F the load to avoid damage to the instrument and the device under test DUT For safety wires must have a wire gauge size large enough to prevent overheating when the load operates at maximum rated current It will also minimize large voltage drops from resistances in the wires 12 2 3 Preliminary Check Complete the following steps to verify that the load is ready for use 1 Verify AC Input Voltage Verify and check to make sure proper AC voltages are available to power the instrument The AC voltage range must meet the acceptable specification as explained in 2 1 Input Power and Fuse Requirements Check to verify that the unit is configured to operate at the AC input voltage level of the power source If not it will damage the unit and void its warranty 2 Connect Power and Self Test Connect AC power cord to the AC receptacle in the rear panel and press the power switch to the ON position to turn ON the instrument It will run through a self test procedure with the screen shown below System Selftest Self test Errors The following errors will be displayed if self test did not complete successfully 13 Table 2 Self test Messages Error Message on Display Description EEPROM FAILURE The internal EEPROM is corrupted or damaged Config Data Lost The last operation data within the EEPROM is lost Calibration Data Lost Calibration data within the EEPROM is lost FactoryCal Data L
30. Low This parameter refers to the voltage low limit for the automatic test mode During automatic test mode the DUT must be operating above the configured value for the test to PASS upon completion If the DUT operates below the configured value the test will FAIL upon completion Note This parameter is used for Automatic Test Function ONLY High Rate Low Rate Use the lt and gt keys to select either High Rate or Low Rate then press Depending on the selection the configurable range for the rise and fall times will be different Rise Up Fall Down These parameters define the slew rate of the load which determines the rate at which the input current to a module changes to a new programmed value You can set the current level s rise fall slew rate on the front panel or by remote operation The programmed slew rate is immediately in effect to the triggered and transient current level changes Slew Rate Measurement and Actual Transition time 19 Current slew rate is defined as the change in current over time A programmable slew rate allows a controlled transition from one load setting to another The actual transition time is defined as the time for the input to change from 10 to 90 or 90 to 10 of the programmed current values The graph below illustrates slew rate measurements Voltage Current or Resistance Change Slew Rate gt 100 90 10 0 Time ea Measured Time Actual Time
31. M menu select Power On and press 2 There are two options Rst Def Factory Default Sav0 Settings before last power up Recalls the settings saved to 0 memory location 3 Select the settings you want during power up and press to save changes 4 To exit the menu at any time press twice Load On Knob This setting controls the behavior of the knob 1 From the SYSTEM menu select Knob and press 2 There are two options Update default Real time update Old No update when turning load ON OFF original value before use of rotary knob will be set 3 Select the settings you want during power up and press to save changes 4 To exit the menu at any time press twice Configure Trigger Source The trigger function is used to initiate the start of a program in list mode and also as a toggle for transient mode The trigger source can be set so that users can send a trigger from the front 27 panel through a remote command via remote interface or through the external trigger input in the rear panel Follow the steps below to configure the trigger mode 1 From the SYSTEM menu browse and select Trigger and press f 2 Here are the options Manual Def Manual trigger Front panel trigger button is used to send a trigger Shift Trig press O and to send trigger External External trigger Trigger can be sent by connecting the Trig input and the ground input together in the rear panel A TTL
32. Measurement Configurations nienn reirse tiiin ias ORTER EEEE AO ENEE E EREET RS 42 CREED FUNCOM cirine ii nE LAE EAEE ata ENTREE Riin 44 AS A A A 45 External Analog Control and MONitor ccssccccccccscesssssssscecececssssssaascesecssessensasaeeeesesseenesaaes 46 3 5 Short Operations ERA R R EAEE A TaS 48 3 6 TRANSIENT O PeratlOn airen AAA AA AA ee eee 49 CONTINUOUS P EEEE E ceased state aia eiii ica adds 49 POSO nta ddr 50 o eR ELIE O IEEE 50 3 7 LISTO PENAL OM r sorina aa a a aeaa bed ia teed ea Aaa Taa ees 54 CONQUE e e E a e eee O ree 55 UNE AA NON 57 3 8 Battery Test FUNCTION ii iii 58 3 9 TESOROS ii di Ai A li iii 59 Automatic Test FUNCTION iii id iaa 59 OCP OSE FUNCTIONS a res aeneae ihsductiviestecethccedsdateche caitecesstetestecettes odstatsebacetiscausisiastebeticades 69 AA A ect vize neniuniatccssvbacguzenncd dba tiie Ea i RE A vive E R eta a eke A A NO 4 Remote Opera ON ansiada 4 1 Interface CONNECTION cccccsccccccssccccccsscccecssscccesssscecesseseccesssseccessseecessseeeessseseesseseeees SBTC ost cere eat II O II A tare steer hes 4 2 Remote COMMAS aia 5 Troubleshooting Guide siii iii lino A O A aes E eet E AT REMOTE CONTO Lita itso in Sete ceva AA E la ala Pen eae TUE GA 6 Specifications iii Supplementary Characteristics ccccccccccccsssssssscececeeecsssesseseseeeeseseseseaeseeeeeeseessesseaeseeeeseseeeees TS A AE OA EE AOA T xii 1 General Information 1 1 Product Overview The 8600
33. Model and Firmware Version The model and firmware version can be verified by using the IDN query remote command It can also be found from the front panel Shift Info 1 Press O and press 2 The display will show the following 0 000V 0 000A 8600 Ver 1 29 1 36 3 The model is shown above as 8600 and the firmware version is shown as 1 29 1 36 E 4 Press once to return to the normal display 15 3 Front Panel Operation 3 1 Menu Options Most settings and parameters can be configured from the built in menu systems of the instrument There are two main menus System and Config System Menu Shift Sys To access the system menu press O then The system menu will have the following options Initialize Reset load settings to factory default values Power On Configure power on state Buzzer Enable Disable key sound Knob Controls update method when using knob to control load Trigger Configure Trigger Memory Select memory location for save recall instrument settings Displ Display Enable Disable load ON timer Communication Select communication interface Protocol Select standard SCPI or extended set of protocols for remote communication Config Menu Shift Config To access the system menu press O then The system menu will have the following options Von Configures Von function Protect Configures protection parameters and limits Measure Configures measurement parameters CR_LED
34. OPP Voltage Otherwise the test will end after running the Start Power for the amount of time specified in Step 72 Step Delay End Power OPP Voltage Max Trip Power Min Trip Power Delay This is the delay time to hold each power step in the test This determines how fast or slow to run through the test This is the ending power value before OPP test ends The test will only run through in steps from Start Power to the End Power if input voltage is greater than the OPP Voltage This value is a limit that is used to test for OPP conditions In the event of an over power condition when the input voltage is greater than this value the test will run through from Start Power to End Power in steps The input power the over power value will be checked during this process If power is within the Max Trip Power and Min Trip Power boundaries the load will indicate Pass at the end of the test If outside of these boundaries the load will indicate Fault The maximum acceptable power limit of the over power value The minimum acceptable power limit of the over power value The following is a step by step procedure to configure an OPP test program Run Shift OPP Press and to enter the OPP Test menu The following will be displayed OPP TEST Recall Select Edit and press Enter a value using the numeric keypad or rotary knob for Voltage On Level The value must be within the maximum input limits of the load Pr
35. REN_CONTROL GO_TO_LOCAL LOCAL_LOCKOUT When it receives MsgID TRIGGER USBTMC command it will transmit TRIGGER command to the function layer 4 2 Remote Commands The instrument supports some SCPI commands and some instrument specific commands These commands enable a computer to remotely communicate and control the instrument over any of the supported remote interfaces USBTMC RS 232 and GPIB Refer to the programming manual for details which can be downloaded from www bkprecision com 77 5 Troubleshooting Guide Below are some frequently asked questions and answers Please check if any apply to your instrument before contacting B amp K Precision General Q cannot power up the instrument Check that the power cord is securely connected to the AC input and there is live power from your electrical AC outlet Verify that the AC power coming from the mains have the correct voltage The load can accept a specific range of AC input voltages Refer to section 2 1 Q cannot set power in CW or current in CC at the maximum rating 4 Check the power and current Limits from the Protect menu within the CONFIG menu Refer to section 3 4 for details Remote Control Q lam trying to send the commands over USB RS232 but it does not seem to respond Check that you are sending ASCII strings that are terminated with a CR carriage return and LF line feed character For RS 232 check that the baud rate parity data b
36. VP State Check whether the input voltage is within the electronic load s rated voltage or the programmed protection voltage ranges If it is outside the range please disconnect the device under test Then press any key on the front panel or remotely send SCPI command PROTection CLEar The OVP displayed on the front panel will turn off and the electronic load exits OVP protection state 40 Overtemperature Protection OTP There is an overtemperature protection circuit which will turn off the input if the internal temperature exceeds safe limits When the electronic load s internal circuit temperature is over 85 C the load will enable OTP Input will automatically be turned off and the VFD will display OTP At the same time the OT and PS bits in the status register will be set and remain until they are reset Operations to Clear the OTP State When the electronic load temperature has dropped below the protection point press any key on the front panel or remotely send command PROTection CLEar The OTP displayed on the front panel will turn off and the electronic load exits OTP protection state Reverse Voltage Protection LRV RRV This function protects the electronic load in case the input DC voltage lines are connected with the wrong polarity When a reverse voltage LRV local reverse voltage RRV remote reverse voltage connection condition is detected the input will immediately turn off the buzzer will alarm the user
37. age value Use the numeric keypad or rotary knob to enter a voltage level Then press to continue 5 The load will prompt to enter the Stop Capacity Use the numeric keypad or rotary knob to enter a capacity value in Ah Then press to continue 58 6 Lastly it will prompt to enter the Stop Timer Use the numeric keypad or rotary knob to enter a time value in seconds Then press to finish the setup 7 The display will then show the following OFF CC 10 000V 0 000A 0 00 W 0 000Ah Trig 8 To start the battery test press once The input will automatically be enabled ON with the button s backlight lit The timer on the display will run continuously and Ah measurement will update through time The test will continue to run until one of the three stop conditions is met 3 9 Test Operations Automatic Test Function The automatic test function of the load is useful for simulating various tests and allows the user to edit up to 10 program files Each file has 10 steps and up to 100 steps can be edited and saved into the EEPROM Convenient for production environments automatic test can cascade sequences across multiple channels and allows setting of Pass Fail P F criteria Setting Up Program Files Configuring Pass Fail Parameters The Pass Fail criteria can be found in the SETUP menu of the front panel under the high low parameters Users must set pass fail criteria for each mode Configure CC Parameters Config
38. and the status register s reverse voltage LRV RRV and VF bits will be set The load will display LRV RRV until they are reset In this condition the VF pin will output a low level Operations to Clear the Reverse Voltage State Check whether the connection is reversed If so disconnect the device to be measured and the reverse voltage state will be cleared 41 Configure Timed Input The load has a built in timer function that can be configured to allow enabling ON the main input for a specified amount of time To configure this time follow the steps below 1 2 3 4 Go to CONFIG menu and select Protect Then press Select Time and press To enable timed input select On and press The default is Off It will then prompt to enter a value for Delay This is the amount of time to enable the input from when the is pressed or when input is turned ON remotely Once this time is past input will be disabled OFF Use the numeric keypad or rotary knob to enter the value Press to confirm the change The valid range is O 60000 seconds Es Now press twice to exit the menu The instrument will show the delay timer as follows 80 000V 12 000A 0 00 W v60000 05 CC 1 000A Measurement Configurations Voltage Auto Range By default the load has auto range enabled for voltage measurements and operations To enable or disable follow the steps below q 2 Go to CONFIG menu and select Measure
39. at you are using with the device Non Warranty Service Please go to the support and service section on our website at www bkprecision com to obtain a RMA Return the product in the original packaging to the address below Clearly state on the RMA the performance problem and return any leads probes connectors and accessories that you are using with the device Customers not on an open account must include payment in the form of a money order or credit card For the most current repair charges please refer to the service and support section on our website Return all merchandise to B amp K Precision Corp with prepaid shipping The flat rate repair charge for Non Warranty Service does not include return shipping Return shipping to locations in North America is included for Warranty Service For overnight shipments and non North American shipping fees please contact B amp K Precision Corp B amp K Precision Corp 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 714 921 9095 Include with the returned instrument your complete return shipping address contact name phone number and description of problem LIMITED THREE YEAR WARRANTY B amp K Precision Corp warrants to the original purchaser that its products and the component parts thereof will be free from defects in workmanship and materials for a period of three years from date of purchase B amp K Precision Corp will without charge repair or replace at its option defe
40. cked and list parameters cannot be changed until List mode is disabled 56 Run List To run a list follow the steps below 1 From the List menu select Recall and press The load will prompt for the memory location of the list to recall Enter between 1 7 and press to recall 2 Then select On and press The Trig annunciator will appear and the On selection will become Off 3 Press to go back to the normal display which will then look like the following 80 000V 12 000A 0 00 W 00000 0S O LIST 1 4 Press to enable ON the load s input and send a trigger to initiate the start of the list program O S 5 If Trigger Source is set to Manual press and then to send a trigger Refer to Configure Trigger Source in section 3 3 SYSTEM Menu to configure the Trigger Source Note The number next to LIST on the display shows the current running step number When the list ends it will change back to 0 Note If List mode is enabled the Recall menu will be locked and list parameters cannot be changed until List mode is disabled Note Atthe end of a list operation the load s input does not disable automatically and will continue to draw power at the list s last step value until is pressed to disable the input or if controlled remotely the input OFF command is sent at the end 57 Shift 6 To disable list operation first press to disable the input and then press O an
41. ctive product or component parts Returned product must be accompanied by proof of the purchase date in the form of a sales receipt To help us better serve you please complete the warranty registration for your new instrument via our website www bkprecision com Exclusions This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs The warranty is void if the serial number is altered defaced or removed B amp K Precision Corp shall not be liable for any consequential damages including without limitation damages resulting from loss of use Some states do not allow limitations of incidental or consequential damages So the above limitation or exclusion may not apply to you This warranty gives you specific rights and you may have other rights which vary from state to state B amp K Precision Corp 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 714 921 9095 BK PRECISION 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 2015 B amp K Precision Corp Printed in China v011215
42. d List Select Off and press to confirm The Trig annunciator will disappear when list operation is disabled 3 8 Battery Test Function The load has a built in battery test function that uses CC mode and calculates the battery capacity using a fixed current load The test s stop conditions can be specified by the following Stop Voltage Set a cut off voltage level When this level is reached the test will end Valid range 0V max rated voltage Stop Capacity Sets a capacity level When the calculated capacity reaches this level the test will end Valid range O Ah 999 99 Ah Stop Timer Sets a timer When the specified time is reached the test will end Valid range O s 99999 s During operation the load will sink current at the specified level while measuring and updating the capacity value in amp hours Ah and tracking the time period of the test When any one of the three stop conditions above is met the test will end and the display will show the measured capacity and time results To setup and run the battery test function follow the steps below 1 Disable the input of the load and connect it to the battery to be tested OCP cc 2 Press and use the numeric keypad or rotary knob to enter a current sink value for the test Press Shift Batt 3 Press O and to configure and enable the battery test function 4 The load will prompt to enter all three test stop conditions starting with Stop Volt
43. d exhaust ports If mounted in a rack position power devices in the rack above the instrument to minimize instrument heating while rack mounted Do not continue to operate the instrument if you cannot verify the fan is operating note some fans may have intermittent duty cycles Do not insert any object into the fan s inlet or outlet Do not short circuit batteries When using a DC load to discharge a battery do not exceed the battery manufacturer s specified maximum rate of discharge Use correctly sized wires To connect the load to the power supply use a wire diameter large enough to handle the maximum continuous output short circuit current of the power supply without the wire overheating For continued safe use of the instrument e Donot place heavy objects on the instrument e Do not obstruct cooling air flow to the instrument e Donot place a hot soldering iron on the instrument e Do not pull the instrument with the power cord connected probe or connected test lead e Do not move the instrument when a probe is connected to a circuit being tested vi Compliance Statements Disposal of Old Electrical 8 Electronic Equipment Applicable in the European Union and other European countries with separate collection systems This product is subject to Directive 2002 96 EC of the European Parliament and the Council of the European Union on waste electrical and electronic equipment WEEE and in jurisdictions adopting that Dir
44. d in place of Stop When the test ends either Pass or Fault will appear next to Stop Trig 4 To stop the test at any time press 3 10 Key Lock The front panel keys can be locked to prevent unwanted changes to output settings and instrument configurations Follow the steps below to enable disable key lock Shift 1 Press O and then A indicator will light up on the display indicating that the front panel keys are lock At this point all keys are disabled except for the Lock function Shift Lock 2 To unlock the keys again press O and then again The indicator will disappear and all keys will be enabled 75 4 Remote Operation 4 1 Interface Connection RS 232 For RS 232 connectivity refer to the diagram below for pinout information The RS 232 is labeled in the rear panel and it is a female DB 9 interface Table 6 RS232 Pin Outs PIN Description 1 S 2 Transmit Data 3 Receive Data 4 E 5 GND 6 E 7 CTS 8 RTS 9 7 A straight pin to pin DB9 female to DB9 male serial cable is required for using the RS 232 interface Do not use a null modem or crossover DB9 serial cable 76 GPIB The load can be configured with a GPIB address from 0 31 To communicate via GPIB connect a GPIB cable to the GPIB interface on the rear panel as illustrated below ee 9 The device is SR1 RL1 and DT1 enabled It can receive the following request
45. e Table 4 Save Recall Storage Group Storage Corresponding memory Group locations for save operation 0 1 10 1 11 20 2 21 30 3 31 40 4 41 50 5 51 60 6 61 70 7 71 80 8 81 90 9 91 100 When recalling settings each of the numeric keypad numbers corresponds to the memory locations based on the storage group selected according to the table above For storage group Short Tran O recalling memory location 1 is done by pressing location 2 is done by pressing A Pause and so on Memory location 10 is recalled by pressing For storage group 1 recalling Short Tran memory location 11 by pressing location 12 by pressing and so on Example Settings are saved to memory location 60 To recall those settings set storage group to 5 from Pause the menu then press recall and the number 29 Select Storage Grou 1 From the SYSTEM menu browse and select Memory and press The following screen will appear MEMORY Group 0 2 Use the current adjust knob or the numeric keypad to enter the storage group Select between 0 9 Press to save selection E 3 To exit the menu at any time press twice NOTE The storage group setting also affects the automatic test function of the load Refer to Automatic Test Function for more details Save Settings 1 Setup all the instrument settings that you want to save Shift Save 2 Then
46. e range of this value is limited by Current Range Step Current This is the size of the step current as the test runs from the Start Current to End Current The test will only run through in steps if the measured input voltage is greater than the OCP Voltage Otherwise the test will end after running the Start Current for the amount of time specified in Step Delay Step Delay This is the delay time to hold each current step in the test This determines how fast or slow to run through the test End Current This is the ending current value before OCP test ends The test will only run through in steps from Start Current to the End Current if input voltage is greater than the OCP Voltage The settable range of this value is limited by Current Range OCP Voltage This value is a limit that is used to test for OCP conditions In the event of an over current condition when the input voltage is greater than this value the test will run through from Start Current to End Current in steps The input current the over current value will be checked during this process If current is within the Max Trip Current and Min Trip Current boundaries the load will indicate Pass at the end of the test If outside of these boundaries the load will indicate Fault Max Trip Current The maximum acceptable current limit of the over current value Min Trip Current The minimum acceptable current limit of the over current value The following is a step by step proced
47. e powered from a CATEGORY II mains power environment The mains power should be 120 V RMS or 240 V RMS Use only the power cord supplied with the instrument and ensure it is appropriate for your country of use Ground the Instrument To minimize shock hazard the instrument chassis and cabinet must be connected to an electrical safety ground This instrument is grounded through the ground conductor of the supplied three conductor AC line power cable The power cable must be plugged into an approved three conductor electrical outlet The power jack and mating plug of the power cable meet IEC safety standards Do not alter or defeat the ground connection Without the safety ground connection all accessible conductive parts including control knobs may provide an electric shock Failure to use a properly grounded approved outlet and the recommended three conductor AC line power cable may result in injury or death Unless otherwise stated a ground connection on the instrument s front or rear panel is for a reference of potential only and is not to be used as a safety ground Do not operate in an explosive or flammable atmosphere Do not operate the instrument in the presence of flammable gases or vapors fumes or finely divided particulates The instrument is designed to be used in office type indoor environments Do not operate the instrument e Inthe presence of noxious corrosive or flammable fumes gases vapors chemicals or finel
48. e timing This is useful when running test sequences with a minimum amount of overhead The parameters of List operation include the name number of steps 2 84 step width time 20us 3600s and every steps set value and slew rate The list file can be saved in non volatile memory where it can be quickly recalled Users can edit up to 7 groups of List files in CC mode only In List operation mode the electronic load begins to enable the List operation when it receives the trigger signal and will continue until the List operation is completed or the instrument receives another trigger signal List Sequence Trigger i i hoot i i i o 1 21314 y i i i eO i i i List count1 List count Figure 17 List Mode Current Waveform 54 Configure List Follow the steps below to configure list operation Shift List 1 From the front panel press O and then The following display will show LIST On Recall 2 Select Edit and press The following display will show EDIT LIST High Rate Low Rate 3 Select either High Rate or Low Rate These options configure the settable slew rate range If High Rate is selected users can adjust the slew rate of the transient in the A us range If Low Rate is selected users can adjust the same in A ms range The settable range will vary depending on the model 4 The load will then prompt to enter a value for Current Range Use the numeric keypad
49. ect GPIB interface for remote operation 1 From the SYSTEM menu browse and select Communication and press 2 Select GPIB and press to set to GPIB for remote communication 3 The load will give a prompt to select an Address This is the GPIB address to which the instrument will be assigned to 4 Use the current adjust knob or the numeric keypad to enter an address from O 31 5 Press to save the selected address and the display will return to the Communication menu 34 3 4 CONFIG Menu All setup procedures and settings explained in this section can be accessed from the CONFIG Shift Config menu To access this menu press and The following screen will show CONFIG MENU Von Protect Measure CR_LED p Von Operation The Von voltage value can be set to control the voltage turn on state for the electronic load When the input voltage exceeds the Von voltage value the electronic load s input state turns on This function can protect a DUT when its voltage goes below a specified level For example when testing a power supply s discharge characteristics you can set the Von voltage level start and stop discharging of the power supply When Von Latch is ON the electronic load will begin sinking current if input voltage exceeds Von voltage When the input voltage drops below the Von voltage value the electronic load will stop sinking current and the input will turn off 35 RISE RATE Fall Rate
50. ective is marked as being put on the market after August 13 2005 and should not be disposed of as unsorted municipal waste Please utilize your E local WEEE collection facilities in the disposition of this product and otherwise observe all applicable requirements vii CE Declaration of Conformity The instrument meets the requirements of 2006 95 EC Low Voltage Directive and 2004 108 EC Electromagnetic Compatibility Directive with the following standards Low Voltage Directive N61010 1 2001 EMC Directive EN 61000 3 2 2006 EN 61000 3 3 1995 A1 2001 A2 2005 EN 61000 4 2 3 4 5 6 11 EN 61326 1 2006 viii Safety Symbols CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury WARNING indicates a hazardous situation which if not avoided could result in death or serious injury Chassis earth ground symbol On Power Off Power On Power This is the In position of the power switch when instrument is ON Off Power This is the Out position of the power switch when instrument is OFF DI O aee DANGER DANGER indicates a hazardous situation which if not avoided will result in death or serious injury AAWARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury SAFETY Safety instructions or equivalent signs indicate specific safety
51. ess to continue Enter a value for Voltage On Delay This can be set between 0 00s and 99 99s Then press to continue Follow the same steps for Current Range The value must be within the maximum input limits of the load Press to continue Set the Start Power The value must be within the maximum input limits of the load Press to continue 73 6 Follow the same steps for Step Power and End Power Press Enter after each settings to continue 7 Entera value for OPP Voltage and press to continue 8 Entera value for Max Trip Power and then Min Trip Power Press after each settings to continue 9 The load will prompt to Save OPP File Select a number between 1 and 5 Then press to save all settings to the selected location ZA Note At any time when configuring any parameters for the test you can press the a key to select the previous parameter to edit To recall the settings 1 Press O and to enter the OPP Test menu Select Recall and press 2 Use the keypad or knob to select the saved location number and press All settings will be recalled when selecting Edit from the OPP Test menu To run the OPP test 1 Recall the settings from memory by following the steps above 2 From the OPP Test menu select Run and press The display will show the following 74 OFF CC 10 000V 0 000A 0 00W 0 00W Stop Trig 3 Press to start the test When the test is running Run will be indicate
52. ext prompt will ask to enter a value for Level B which is the other load level for transient operation Enter a value and press For Continuous mode The load will prompt to enter the transient s Frequency Enter a value and press It will then prompt to enter the Duty cycle Enter a value between 0 01 and 99 99 For Pulse mode The load will prompt to enter the Pulse Width Enter a value then press 52 11 The load will return to the Transient menu Press E to return to the normal display The Trig annunciator will appear and the display will look like below 80 000V 12 000A 0 00 W 00000 0S 1 TRAN 12 Depending on the selected Trigger Source from within the SYSTEM menu the operation may start immediately 13 To run the transient operation first press to enable the input Then send a Shift trigger to start the operation If Trigger Source is set to Manual press O and then O to send a trigger Refer to Configure Trigger Source in section 3 3 SYSTEM Menu to configure the Trigger Source Note The number next to TRAN on display will count each transition It can only count up to 65535 transitions after which it will reset to O and start over Shift 14 To disable transient operation first press to disable the input Then press Tran and a Select Off and press to confirm 53 3 7 List Operation List mode lets you generate complex sequences of input changes with rapid precis
53. for indoor use and operated with maximum relative humidity of lt 95 The internal cooling fan speed is temperature controlled Refer to the table below Internal 35 C 50 C 70 C Temperature Fan Speed Low Medium High To ensure the most current version of this manual please download the latest version here http www bkprecision com search 8600 For current up to date product information please visit www bkprecision com 83 7 Calibration It is recommended that the instrument be returned to B amp K Precision for service and periodic calibration to ensure the instrument is performing within its specifications B amp K Precision recommends calibrating the instrument once per year 84 Index AC input 10 Automatic Test 59 Constant Current 18 Constant Power 23 Constant Resistance 22 Constant Voltage 20 Firmware Version 15 Fuse 11 Key Lock 75 Line voltage input 10 List mode 54 85 Menu 16 Remote sense 45 Restore Factory Default 25 RMT 32 Self test 13 Short 48 System Menu 16 Transient operation 49 Trigger Source 27 Von Latch 35 SERVICE INFORMATION Warranty Service Please go to the support and service section on our website at www bkprecision com to obtain a RMA Return the product in the original packaging with proof of purchase to the address below Clearly state on the RMA the performance problem and return any leads probes connectors and accessories th
54. ge to OFF CC 10 000V 0 000A PRGO1 01 on pass 01 next to PRGO1 indicates the current running sequence number within the selected program number on indicates the input state is enabled for the selected sequence If On Time is not set to 0 0S for the sequence it will show on This indicator can also show off to indicate the input state is disabled If short is selected for the sequence it will display short pass indicates at the current sequence has passed the test If a failure occurs it will indicate fail If pause is activated for a selected sequence while running the program the display will show 67 OFF CC 10 000V 0 000A PRGO1 01 off key pass At this point the program is in a pause state To continue the test press V once Note At any time while the program is in the running state if you wish to re test a sequence or test a previous sequence press the ZA key Each press will go back up one sequence and run the test again starting from that sequence You can also skip to the next sequence in the test by pressing V Shift To pause the program at any time while it is in the running state press O and then A Pause indicator will appear on the bottom right of the display To resume repeat the same step When the program is in a pause state the input state can be overridden by pressing 6 At the end of the test the display will show OFF CC 10 000V 0 000A PRG pass 68
55. ion of the nature of any contamination of the instrument Clean the instrument only as instructed Do not clean the instrument its switches or its terminals with contact cleaners abrasives lubricants solvents acids bases or other such chemicals Clean the instrument only with a clean dry lint free cloth or as instructed in this manual Not for critical applications This instrument is not authorized for use in contact with the human body or for use as a component in a life support device or system Do not touch live circuits Instrument covers must not be removed by operating personnel Component replacement and internal adjustments must be made by qualified service trained maintenance personnel who are aware of the hazards involved when the instrument s covers and shields are removed Under certain conditions even with the power cord removed dangerous voltages may exist when the covers are removed To avoid injuries always disconnect the power cord from the instrument disconnect all other connections for example test leads computer interface cables etc discharge all circuits and verify there are no hazardous voltages present on any conductors by measurements with a properly operating voltage sensing device before touching any internal parts Verify the voltage sensing device is working properly before and after making the measurements by testing with known operating voltage sources and test for both DC and AC voltages Do no
56. its stop bit and flow control settings match with the settings configured on the software interface To check these settings go to the SYSTEM menu and enter the Communication menu and select RS 232 78 If the instrument is damaged appears to be damaged or if any liquid chemical or other material gets on or inside the instrument remove the instrument s power cord remove the instrument from service label it as not to be operated and return the instrument to B amp K Precision for repair Notify B amp K Precision of the nature of any contamination of the instrument 79 6 Specifications Note All specifications apply to the unit after a temperature stabilization time of 15 minutes over an ambient temperature range of 23 C 5 C Specifications are subject to change without notice Model 8600 8601 8602 Input Ratings Input Voltage 0 120V 0 120V 0 500V Input Low 0 3A O 6A 0 3A Current High 0 30A 0 60A 0 15A Input Power 150 W 250 W 200 W Minimum Low 0 11Vat3A 0 18Vat6A 1Vat3A Operating High 1 1Vat30A 1 1Vat60A 45Vat15A Voltage CV Mode Range Low 0 18V 0O 50V High 0 120V 0 500 V Resolution Low 1mV High 10 mV Accuracy Low 0 05 0 02 FS 0 025 0 05 FS 0 05 0 025 FS High 0 05 0 025 FS 0 025 0 05 FS 0 05 0 025 FS CC Mode Range Low 0 3A O 6A 0 3A High 0 30A 0 60A O 15A Resolu
57. ltage setting ensure the instrument has fuses of the proper ratings and types for the selected line voltage before applying line power Fuse Requirements An AC input fuse is necessary when powering the instrument Below is a table of the fuse required for all models operating with either 110 VAC or 220 VAC input Table 1 Fuse Requirements Model Fuse Specification 110 VAC Fuse Specification 220 VAC 8600 T1 25A 250V T 500 mA 250 V 8601 T1 25A 250V T 500 mA 250 V 8602 T1 25A 250V T 500 mA 250 V Fuse Replacement Follow the steps below to replace or check the fuse 1 Locate the fuse box next to the AC input connector in the rear panel 2 With a small flat blade screwdriver insert into the fuse box slit to pull and slide out the fuse box as indicated below 3 Check and replace fuse if necessary for the desired line voltage operation 11 Fuse box slit Check Remove Fuse Figure 7 Fuse Box 2 2 Input Connections The main DC input terminal is a screw type binding post terminal located in the front panel To loosen turn the terminal cap counter clock wise Note The screws on the terminals can be completely removed to allow for ring type adapters must be greater than 6mm in diameter Due to the high current rating of the DC load proper wire sizes are necessary for safe connectivity and to prevent wires from overheating Before connecting wires to the input terminals turn OF
58. nal Current Control You can control the current setting of the electronic load in CC mode using the external analog programming terminals labeled EXT PRG A 0 10 V input signal will simulate O full scale of the electronic load to regulate the input current of the electronic load 10V indicates the full range of electronic load s current rating To configure this function follow the steps below 1 Goto CONFIG menu and select Ext Program and press 2 Select On to enable external analog control Then press to confirm To disable select Off and press y 3 The Rear annunciator will appear on the front panel once external analog control is enabled 46 4 Connect the external analog control pins from the rear panel of the instrument to your voltage control source as shown below Rear Panel Terminals External Voltage Source TRG ON VF Figure 13 Analog Control Setup 5 Set the instrument to CC mode and enable the input to begin controlling with the external voltage source Do not connect more than 30 V into the external program terminal pins or damages may occur External Input On Off Control The electronic load s input can be enabled ON or disabled OFF via the external control pins labeled ON and ground pin Enable ON input Short the two pins together as shown below Rear Panel Terminals EST HA TRG ON VF A 47 Disable OFF input Disconnect the short between the two pins
59. nce on the display will indicate Y When the program finishes running sequence 1 it will pause until user presses a button to continue the test Then when the program finishes running sequence 3 it will pause again until user presses a button to continue the test The display will look like below for this configuration EDIT PROGRAM Pause Sequence 0000004Y2Y Note A O symbol will replace the sequence numbers that are deactivated from the previous steps 4 Press to continue The next parameter to configure will be the Short Sequence This allows the test program to run a short circuit test of the selected sequence Use the numeric keypad to select which sequence number to activate short circuit test and its number will change to Y 63 EDIT PROGRAM Short Sequence Q0000004Y2Y 5 Press to continue The display will show the following EDIT PROGRAM SEQ01 On Time SEQO1 will be shown if sequence 1 is activated Otherwise it will display SEQXX where XX is the first sequence number in the program that is activated starts from 1 9 and then 0 The load is prompting to enter the On Time for the sequence number in seconds This is the length of time in which to run the sequence with input enabled ON Valid range is 0 0s 60 0s Use the numeric keypad or rotary knob to enter a value Then press 6 Now the load will prompt to enter Off Time This is the length of time in which to run the sequence with inpu
60. o enable software OPP select On and press The default is Off 4 If enabled ON the load will prompt to enter a value for Point Use the numeric keypad or rotary knob to enter the OPP power limit value then press The valid range depends on the model of the load 5 It will then prompt to enter a value for Delay This is the protection trip delay which is the amount of time to delay from when the input has reached the limit before triggering OPP Use the numeric keypad or rotary knob to enter a value then press to confirm change The valid range is O 60 seconds Operations to Clear the OPP State Check whether the input power is within the rated power range or the programmed protection ranges If it is outside the range disconnect the device under test Then press any key on the front panel or remotely send command PROTection CLEar The OPP displayed on the front panel will turn off and the electronic load exits OPP protection state Overvoltage Protection OVP The instrument s maximum OVP limit is 110 of the maximum rated voltage If the OVP circuit has triggered input will turn off buzzer alarm will go off and the status register s OV and VF bit will be set The mainframe will display OVP and the condition will remain until they are reset Once overvoltage protection occurs the VF pin on the rear panel will output TTL Low voltage level Under normal conditions it outputs a 5 V TTL high signal Operations to Clear the O
61. odel See specifications for details High This parameter refers to the current high limit for the automatic test mode During automatic test mode the device under test DUT must be operating below the configured value for the test to PASS upon completion If the DUT operates above the configured value the test will FAIL upon completion 21 Note This parameter is used for Automatic Test Function ONLY Low This parameter refers to the current low limit for the automatic test mode During automatic test mode the DUT must be operating above the configured value for the test to PASS upon completion If the DUT operates below the configured value the test will FAIL upon completion Note This parameter is used for Automatic Test Function ONLY Constant Resistance CR Mode In this mode the electronic load is equivalent to a constant resistance as shown below The electronic load will linearly change the current according to the input voltage Slope Resistance Load Setting Current gt Load Input Voltage V Configure CR Parameters There are several parameters that should be set up prior to operating in CR mode Press Cer setup menu will be shown Shift Setup cv so that it lights up then press and to access Setup for CR mode The Constant Resistance Range 7500 00 22 The setup parameters are Range High Voltage limit and Low Voltage limit Use the V A key to select each parameter and
62. ost Factory calibration data is lost Mainframelnitialize Lost The system settings within the EEPROM is lost If any of these errors occur please contact B amp K Precision Input Check Follow the steps below to check that the load is operating correctly A DC power supply rated for at least 5V and 1 A will be required to proceed with this check 1 2 Power on the load The display will show the OFF annunciator above the voltage display Connect the input terminal to a DC power supply and configure the supply to output 5 V and current limit to 1 A Turn on the DC power supply s output Observe the load s measured voltage display which should read close to or exactly 5 000V OCP cc A Press so that its back light turns on and enter 0 500 A using the numeric keypad Press A The display should show CC 0 500A on the bottom right Press and its backlight will be lit The OFF indicator will change to CC and the measured current should now display a value close to 0 500 A This setup verifies that the load is drawing power correctly from the power supply Note Ifthe load is not drawing power from the DC power supply check all load protection limits and settings within the menu to verify that the load is configured to allow drawing power at 5V 0 500 A Also verify that the CC mode parameters Shift are setup to operate within the configured valid ranges by pressing and Setup CV 14 Check
63. power source to be measured You can set this function via the Configuration menu 48 3 6 Transient Operation Transient operation enables the module to periodically switch between two load levels as might be required for testing power supplies or other DC sources There are three different transient testing modes continuous pulse and toggle Continuous Generates a respective pulse stream that toggles between two load levels Pulse Generates a load change that returns to its original state after some time period Generates a repetitive pulse stream that toggles between two load levels Toggle It is similar to continuous mode except that the transient points are controlled by explicit triggers instead of an internal transient generator Continuous In this mode the electronic load generates a repetitive pulse stream that toggles between two load levels Load could switch the state between two value settings value A and value B In CC mode transient testing can be used to check the stability of the source voltage Transient functions have two current levels A level B level which should be in the same range high range or low range You can set the frequency as well as the duty cycle which will affect the timing and width of each level The slew rate determines the rate at which the level changes Upon receiving a trigger and the load will continuously switch between the A B levels preset Transient loads are
64. press O and The display will show the following 80 000V 12 000A 0 00 W Save 1 30 3 Use the current adjust knob or the numeric keypad to enter the memory location in which to store current instrument settings Select between 0 100 Press to save to the selection location NOTE The 0 memory location is reserved for storing instrument settings last configured before power off and is used only for power on state configuration only Recall Settings 1 First consider the memory locations you want to recall from As they are grouped together select the appropriate storage group from the SYSTEM menu first by following the instructions in previous section Sr Recall Ent ia z ois 2 Once selected press O and 2 and it will light up to indicate the instrument is in Recall mode 3 Use the keypad numbers to recall the settings from the corresponding memory location referenced by the storage group selected in Step 1 4 Once entered the saved settings at the location will be immediately recalled Note When in Recall mode users can recall settings from different locations without having to press additional keys each time For example you can press 1 to recall settings in location one and then press 5 to recall settings in location 5 on the fly E 5 To exit Recall mode press Display Input On Timer The instrument has an internal timer that counts how long the input has been enabled ON
65. rement update rate but less accurate readings To configure follow the steps below 4 Goto CONFIG menu and select Measure Then press 5 Select Filter and press The load will prompt to enter a value for Average Count 6 Use the numeric keypad or rotary knob to adjust this value then press to save the change The valid range is from 2 16 2 2 2416 The default is 14 2414 43 CR LED Function CR LED is a function that allows the instrument to simulate the loading behavior of typical LEDs which can be used for testing LED drivers When the function is enabled the load allows the user to configure the LED s operating resistance and forward voltage along with the voltage range same as CR operation Below illustrates the V I characteristics curve of a typical LED Figure 11 CR LED IV Characteristics Curve Vd Forward voltage of the LED Rd LED s operating resistance Vo Operating voltage across the LED lo Operating current across the LED To configure CR LED function follow the steps below 1 Press O and to access the CONFIG menu 2 Select CR_LED and press 3 Select On and press Press to exit the CONFIG menu Shift Setup CR f cv 4 Press to enter CR operation then press O and to access CR mode settings 44 5 Use the numeric keypad or rotary knob to enter the values for Range Voltage High Voltage Low and Vd Vd will be the forward voltage of the LED you want to simulate
66. ress O and to access Setup for CW mode The setup menu will be shown Constant Power Range 250 00W The setup parameters are Range High Voltage limit and Low Voltage limit Use the y A keys to select each parameter and use the numeric keypad to change the value Press to confirm the change Range Use the numeric keypad to change the range This value will also act as a limit to how much power the load can be configured to The adjustable ranges vary depending on the model See specifications for details High This parameter refers to the voltage high limit for the automatic test mode During automatic test mode the device under test DUT must be operating below the configured value for the test to PASS upon completion If the DUT operates above the configured value the test will FAIL upon completion Note This parameter is used for Automatic Test Function ONLY Low 24 This parameter refers to the voltage low limit for the automatic test mode During automatic test mode the DUT must be operating above the configured value for the test to PASS upon completion If the DUT operates below the configured value the test will FAIL upon completion Note This parameter is used for Automatic Test Function ONLY Setting CC CV CR CW Mode Follow the steps below to configure the mode and enable the load cc Cv C cr Cw Press Cec Cov Cer Cow for CC CV CR CW mode so that it lights up Use the numeric keypad
67. t attempt any service or adjustment unless another person capable of rendering first aid and resuscitation is present Do not insert any object into an instrument s ventilation openings or other openings Hazardous voltages may be present in unexpected locations in circuitry being tested when a fault condition in the circuit exists Fuse replacement Fuse replacement must be done by qualified service trained maintenance personnel who are aware of the instrument s fuse requirements and safe replacement procedures Disconnect the instrument from the power line before replacing fuses Replace fuses only with new fuses of the fuse types voltage ratings and current ratings specified in this manual or on the back of the instrument Failure to do so may damage the instrument lead to a safety hazard or cause a fire Failure to use the specified fuses will void the warranty Servicing Do not substitute parts that are not approved by B amp K Precision or modify this instrument Return the instrument to B amp K Precision for service and repair to ensure that safety and performance features are maintained Cooling fans This instrument contains one or more cooling fans For continued safe operation of the instrument the air inlet and exhaust openings for these fans must not be blocked nor must accumulated dust or other debris be allowed to reduce air flow Maintain at least 25 mm clearance around the sides of the instrument that contain air inlet an
68. t disabled OFF Valid range is 0 0 s 60 0 s Use the numeric keypad or rotary knob to enter a value Then press l 7 The load will then prompt to enter P F Delay Time This is delay time is illustrated by the graph below 64 SEQ01 SEQO2 i i EN 0 lt Tpf lt Tont T off Tpf P F Delay Time Ton On Time Toff Off Time Use the numeric keypad or rotary knob to enter a value Then press 8 If there are more than one active sequence the load will repeat the prompts to configure the On Time Off Time and P F Delay Time Follow steps 7 9 for each sequence 9 Once all sequences parameters are configured the display will show PROGRAM Complete Stop Failure Stop Select Complete Stop or Failure Stop then press o Complete Stop Stop test when program is complete Failure Stop Stop test when testing fails 10 The load will prompt to enter a value for Chain Program File This specifies the next program to run immediately after the end of the test Select between 0 10 Select 0 if no other programs will be run at the end of the test Otherwise select the program number to run after the test is completed Use the numeric keypad or rotary knob to enter a value and then press to confirm 11 Lastly the load will prompt to select a number to Save Program File This is the program number that will be referred to when recalling all the configured settings from previous steps or chaining with another
69. table slew rate in CC mode e OVP OCP OPP OTP and reverse voltage protection 1 2 Package Contents Please inspect the instrument mechanically and electrically upon receiving it Unpack all items from the shipping carton and check for any obvious signs of physical damage that may have occurred during transportation Report any damage to the shipping agent immediately Save the original packing carton for possible future reshipment Every instrument is shipped with the following contents e 1x 8600 series DC Electronic load e 1x User Manual e 1x AC Power Cord e Certificate of Calibration e Test Report Verify that all items above are included in the shipping container If anything is missing please contact B amp K Precision 1 3 Product Dimensions All models are designed to fit in a standard 19 inch rackmount The dimensions are shown in Figure 1 below 260 mm 218 mm OOOCHE DC OOOO S209 BSI e ell 90 mm 115 mm M 350 mm Figure 1 Front and Side View 228 mm 115 mm Figure 2 Rear View 1 4 Rackmount Installation The instrument can be installed in a standard 19 inch rack The optional rackmount kit IT E151 is required Below is an image of a model installed with the IT E151 rackmount kit O O Soo IS 1000 OOO ae
70. the input current has reached or exceeded the protection limits Operations to Clear the OCP State Check whether the input current is within the electronic load s rated current or the programmed protection current ranges If it is outside the range disconnect the device under test Then press any key on the front panel or remotely send SCPI command PROTection CLEar The OCP displayed on the front panel will turn off and the load exits OCP protection state Overpower Protection OPP The electronic load includes both hardware and software OPP features Hardware OPP In the event that the electronic load s input power exceeds the set power protection limit the hardware OPP will limit the power Once the hardware OPP is triggered the status register s OP bit will be set When the hardware OPP is removed the status register s OP bit will be reset Hardware overpower protection will not turn the electronic load s input off Follow the steps below to set the hardware OPP limit 1 Goto CONFIG menu and select Protect Then press 2 Select Max P and press 3 The load will prompt to enter a value for Point This is the hardware OPP limit value Use the numeric keypad or rotary knob to enter a value Press to confirm the change 39 Software OPP Users can set the electronic load s software OPP value with the following steps 1 Goto CONFIG menu and select Protect Then press 2 Select P limit and press 3 T
71. tion Low 0 1 mA 0 1 mA 0 1 mA High 1mA 1mA 1mA Accuracy Low 0 05 0 05 FS High 0 05 0 05 FS CR Mode Range Low 0 050 100 0 30 100 High 100 7 5kQ Resolution 16 bit Accuracy Low 0 01 0 08 S High 0 01 0 0008 S CW Mode Range 150 W 250 W 200 W Resolution 10 mW Accuracy 0 1 0 1 FS 0 2 0 2 FS 0 1 0 1 FS 80 Models 8600 8601 8602 Transient Mode CC mode T1 8 T2 20 us 3600 s Resolution 10 us Accuracy 5 us 100 ppm Slew Low Rate 0 001 2 5 A ms 0 001 1 A ms Rate High Rate 0 001 2 5 A us 0 001 1 A us Accuracy within 40 of programmed value Measurement Readback Voltage Low 0 18 V 0 18 V 0 50V Range High 0 120V 0 120V 0 500 V Resolution o EY High 1 mV Accuracy 0 025 0 025 FS Readback Current Range Low 0 3A O 6A 0 3A High 0 30A 0 60A O 15A ne Low 0 01 mA 0 1 mA 0 01 mA High 0 1 mA 1mA 0 1 mA Accuracy 0 05 0 05 FS 0 05 0 1 FS 0 05 0 05 FS Readback Power Range 150 W 250 W 200 W Resolution 10 mW Accuracy 1 0 1 FS 0 2 0 2 FS 0 1 0 1 FS Protection Range typical OPP 150 W 250 W 200 W oc Low 3 3A 6 6A 3 3A High 33 A 66 A 16 5A OVP 120 V 120 V 500 V OTP 85 C General typical Short Circuit Current Low 3A 6A 3A CC High 30 A 60 A 15A Voltage OV Resistance 35 MQ 30 mQ
72. ure CV Parameters Configure CR Parameters and or Configure CW Parameters used in 59 the Automatic Test sequence prior to running the automated test Please see the Configure CC Parameters Configure CV Parameters Configure CR Parameters and or Configure CW Parameters configuration sections to set these parameters Configuring Instrument Settings The automatic test runs a program that uses the settings stored into the internal EEPROM memory Each program can run 10 sequences and each of these sequences is correlated to instrument settings that are stored within a designated group of internal EEPROM memory They are designated according to the table below Table 5 Program Save Group Sequence Association PROGRAM 1 1 2 3 4 5 6 7 3 9 10 Sequence Save Group 1 2 3 4 5 6 7 3 9 10 dele 1 2 3 4 5 6 7 8 9 10 Sequence Save Group 11 12 13 14 15 16 17 18 19 20 PROGRAM 3 1 2 3 4 5 6 7 3 9 10 Save Group 21 22 23 24 25 26 27 28 29 30 PROGRAM 4 1 2 3 4 5 6 7 8 9 10 Sequence Save Group 31 32 33 34 35 36 37 38 39 40 YES 1 2 3 4 5 6 7 3 9 10 Sequence Save Group 41 42 43 44 45 46 47 48 49 50 PROGRAM 6 1 2 3 4 5 6 7 8 9 10 Sequence Save Group 51 52 53 54 55 56 57 58 59 60 Ad 1 2 3 4 5 6 7 8 9 10 Sequence Save Group 61 62 63 64 65 66 67 68 69 70 PROGRAME 1 2 3 4 5 6 7 8 9 10 Sequence Save Group 71 72 73 74 75 76 77 78 79 80 60
73. ure to configure an OCP test program 1 Press O and to enter the OCP Test menu The following will be displayed OCP TEST Run Recall 2 Select Edit and press Enter a value using the numeric keypad or rotary knob for Voltage On Level The value must be within the maximum input limits of the load Press to continue 3 Entera value for Voltage On Delay This can be set between 0 00s and 99 99s Then press to continue 70 4 Follow the same steps for Current Range The value must be within the maximum input limits of the load Press to continue 5 Set the Start Current The value must be less than Current Range Press to continue 6 Do the same for Step Current and End Current Press after each setting to continue 7 Entera value for OCP Voltage and press to continue 8 Finally enter a value for Max Trip Current and then Min Trip Current Press after each settings to continue 9 The load will prompt to Save OCP File Select a number between 1 and 5 Then press to save all settings to the selected location A Note At any time when configuring any parameters for the test you can press the key to select the previous parameter to edit To recall the settings 1 Press and Coto enter the OCP Test menu Select Recall and press 2 Use the keypad or knob to select the saved location number and press All settings will be recalled when selecting Edit from the OCP Test menu To run the OCP test
74. use the numeric keypad to change the value Press to confirm the change Range Use the numeric keypad to change the range This value will also act as a limit to how much resistance the load can be configured to The adjustable ranges vary depending on the model See specifications for details High This parameter refers to the voltage high limit for the automatic test mode During automatic test mode the device under test DUT must be operating below the configured value for the test to PASS upon completion If the DUT operates above the configured value the test will FAIL upon completion Note This parameter is used for Automatic Test Function ONLY Low This parameter refers to the voltage low limit for the automatic test mode During automatic test mode the DUT must be operating above the configured value for the test to PASS upon completion If the DUT operates below the configured value the test will FAIL upon completion Note This parameter is used for Automatic Test Function ONLY Constant Power CW Mode In this mode the electronic load will consume a constant power When input voltage increases the input current will decrease while power P V I will remain the same V Power setting Input v2 voltage yz 12 11 Load current 23 Configure CW Parameters There are several parameters that should be set up prior to operating in CW mode Press OPP Shift Setup cw cv so that it lights up then p
75. y divided particulates e In relative humidity conditions outside the instrument s specifications e In environments where there is a danger of any liquid being spilled on the instrument or where any liquid can condense on the instrument e In air temperatures exceeding the specified operating temperatures e In atmospheric pressures outside the specified altitude limits or where the surrounding gas is not air e In environments with restricted cooling air flow even if the air temperatures are within specifications e Indirect sunlight This instrument is intended to be used in an indoor pollution degree 2 environment The operating temperature range is 0 C to 40 C and the operating humidity range is lt 95 relative humidity with no condensation allowed Measurements made by this instrument may be outside specifications if the instrument is used in non office type environments Such environments may include rapid temperature or humidity changes sunlight vibration and or mechanical shocks acoustic noise electrical noise strong electric fields or strong magnetic fields Do not operate instrument if damaged AAWARNING the instrument is damaged appears to be damaged or if any liquid chemical or other material gets on or inside the instrument remove the instrument s power cord remove the instrument from service label it as not to be operated and return the instrument to B amp K Precision for repair Notify B amp K Precis

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