Prodigit 33501 Series Operation Manual Download Page 77

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5-6 PRODIGIT

5-5. Constant Resistance mode application

Major application:
a. Voltage source or Current source testing
b. Power resister simulation.

CURRENT

SOURCE

ELECTRONIC

LOLAD

CR MODE

ELECTRONIC

LOLAD

CR MODE

VOLTAGE

SOURCE

INPUT

VOLTAGE

LOAD CURRENT

LOAD RESISTANCE

SETTING

OUTPUT

Fig 5-6 Constant Resistance mode Application

Summary of Contents for 33501 Series

Page 1: ...33501 Series High power Electronic Load Operation manual S N 90033503 REV G...

Page 2: ...s that the concentration of the hazardous substance in all homogeneous materials in the parts is below the relevant threshold of the SJ T 113632006 standard SJ T 11363 2006 Indicates that the concentr...

Page 3: ...l before using the meter Caution risk of electric shock CAT IV Is for measurements performed at the source of the low voltage installation CAT III Is for measurements performed in the building install...

Page 4: ...of the results are given in the Test Reports as detailed below Standard s Report No Report Issued Date IEC EN 61010 1 2001 ACT201078 December 14 2005 EN 61326 A1 A2 A3 EN 55011 A1 A2 EN 61000 3 2 EN...

Page 5: ...CURRENT SLEW RATE SETTING 2 10 CHAPTER 3 OPERATION 3 1 3 1 FRONT PANEL DESCRIPTION AND 3 1 1 33501 EXTERNAL DIAGRAM 3 1 3 2 INITIAL SETTING OF 33501 SERIES LOAD MODULE 3 12 3 3 INPUT TERMINAL AND WIRE...

Page 6: ...3501 Series High Power Load Rear panel 2 4 Fig 2 5 Diagram of Remote Control Port 2 4 Fig 2 6 Analog programming load current in CC mode operation 2 5 Fig 2 7 front panel key switch 2 5 Fig 2 8 AUTO S...

Page 7: ...alize 3 14 Table 3 7 33513 initialize 3 15 Table 3 8 33514 initialize 3 15 Table 3 9 33515 initialize 3 16 Table 3 10 33532 initialize 3 16 Table 3 11 33533 initialize 3 16 Table 3 12 the resolution o...

Page 8: ...The prodigit 33501 Series high power electronic Load can be controlled locally at the front panel or remotely via computer over the GPIB RS 232C Current CC mode Constant Resistance CR mode and Constan...

Page 9: ...r Fig 1 1 5 33541 0 60V 0 720A 3600W Power Contour 3600W CONTOUR 720 A 60 90 102 85 360 480 60 40 10 0 7 Current 0 1 5 0 35 0 Voltage 0 46 3600W CONTOUR 480 A 60 80 90 240 360 60 40 15 0 6 Current 0 1...

Page 10: ...12 0 60V 0 360A 5400W Power Contour Fig 1 1 7 33513 0 60V 0 480A 7200W Power Contour 5400W CONTOUR 360 A 90 135 180 270 60 40 30 0 4 Current 0 1 15 0 3 0 0 2 Voltage 7200W CONTOUR 480 A 120 180 240 36...

Page 11: ...00A 9000W Power Contour Fig 1 1 9 33515 0 60V 0 720A 10800W Power Contour 10800W CONTOUR 720 A 180 270 360 540 60 40 30 0 4 Current 0 1 15 0 3 0 0 2 Voltage 9000W CONTOUR 600 A 150 225 300 450 60 40 3...

Page 12: ...e operating mode of constant current the 33501 Series Electronic load will sink a current in accordance with the programmed value regardless of the input voltage see Fig 1 2 7200W CONTOUR 960 A 120 15...

Page 13: ...input voltage in accordance with the programmed resistance setting see Fig 1 3 I V LOAD CURRENT INPUT VOLTAGE RESISTANCE SETTING Fig 1 3 Constant Resistance mode CV Mode At constant voltage mode the 3...

Page 14: ...wer source proportional to the dynamic wave form the dynamic wave form definition is shown in Fig 1 6 The period of dynamic wave form is Thigh Tlow dynamic frequency 1 Thigh Tlow the Duty cycle Thigh...

Page 15: ...ther is large the actual transition time can be Calculated by dividing the voltage or current transition by the slew rate The actual transition time is Defined as the time required for the input to ch...

Page 16: ...er voltage and reverse polarity 1 2 9 Isolated Imonitor BNC output 10V full scale 1 2 10 Up to 150 Sets Store Recall EEROM memory 1 2 11 Analog programming input capability at rear panel 1 2 12 Digita...

Page 17: ...16V CV MODE RANGE RESOLUTION ACCURACY 0 1 OF SETTING RANGE 0 2400W 0 64W 0 3600W 0 96W 0 2400W 0 64W 0 3600W 0 96W 0 3600W 0 96W CP MODE RANGE RESOLUTION ACCURACY 0 5 OF SETTING RANGE 15 00 60 00V 0 5...

Page 18: ...60V 0 016V CV MODE RANGE RESOLUTION ACCURACY 0 1 OF SETTING RANGE 0 5400W 1 44W 0 7200W 1 92W 0 9000W 2 4W 0 10800W 2 88W 0 5400W 1 44W CP MODE RANGE RESOLUTION ACCURACY 0 5 OF SETTING RANGE 15 00 60...

Page 19: ...RANGE 0 60V 0 016V CV MODE RANGE RESOLUTION ACCURACY 0 1 OF SETTING RANGE 0 7200W 1 92W CP MODE RANGE RESOLUTION ACCURACY 0 5 OF SETTING RANGE 0 15 000 60 00V 0 5mV 2mV 4 1 2 DVM RANGE RESOLUTION ACC...

Page 20: ...33501 Series Operation Manual 1 13 1 6 Block diagram The functional block diagram of 33501 Series Electronic Load is illustrated in Fig 1 8 Fig 1 8 Block Diagram of 33501 Series Electronic Load...

Page 21: ...stance CR and Constant Voltage CV control circuitry and Constant Power CP Constant and range circuitry is selected depending upon which operating mode and range The drive circuit controls the load cur...

Page 22: ...ry check mark corresponds to your nominal line voltage Skip this procedure if the label is corrected marked 2 2 1 With the 33501 Series load power OFF disconnect the power cord 2 2 2 Refer the drawing...

Page 23: ...de a good viewing angle for bench top use 2 5 Rack mount The 33501 Series high power load is designed to permit mounted in a standard 19 inches rack for system application 2 6 Environmental requiremen...

Page 24: ...d together up to 20 meters maximum Please make sure the lock screws are firmly hand tightened use a screw driver only for the removal of screws Fig 2 3 shows the rear panel of 33501 Series high power...

Page 25: ...mote control Port The D sub 9 pin connector on the rear panel connects the 33501 Series high power load to the PRODIGIT mode 9931C remote controller and to replace the RECALL option key 1 to 5 on the...

Page 26: ...LOAD CURRENT 6V 4V 2V 12A 24A 36A ANALOG V Fig 2 6 Analog programming load current in CC mode operation 2 12 Power on status 2 12 1 Local manual operation mode 2 12 2 STORE RECALL All LED is OFF BABK...

Page 27: ...s not available now please repeat the STORE procedure for a new STORE operation After press the STORE key then press the STORE key the STORE LED annunciator will be blank it indicate the STORE process...

Page 28: ...simultaneously The EDIT mode of Auto Sequence function is entered by press S3 S4 key simultaneously the S3 and S4 LED are ON to indicate Auto sequence mode then the Edit mode of Auto sequence function...

Page 29: ...IONO FLOW CHART 2 14 2 TEST MODE The TEST Mode of Auto Sequence function is entered by press S3 S4 key simultaneously the S3 and S4 LED are ON to indicate Auto sequence mode then the Test mode of Auto...

Page 30: ...red in n1 n9 memory Show Memery bank and State EXI Yes End No Sp Sp 1 No PASS FAIL Show GO Show NG PASS FAI 1 2 3 Yes 4 1 If no than Step 1 continue another step 4 2 If Yes than if all the test in all...

Page 31: ...rrent slew rate to minimize induced voltage drops on the inductive wiring or to control induced transients on the est device power supply transient response testing This controllable load current slew...

Page 32: ...ory Store Recall GPIB and RS 232 remote programming are described in the mainframe operation manual Please refer to the mainframe s operation manual for mainframe store recall and GPIB RS 232C program...

Page 33: ...1 In Constant Current mode example of 33501 The Range I 24A indicates low load current operating range Range II 240A indicated high load current operating range the detail specification of range load...

Page 34: ...OPP test Enable and OPP Setting programming Display will show OPP OCP OCP test Enable and OCP Setting programming Display will show OCP Short testing OCP testing and OPP testing programming will show...

Page 35: ...7 4 Config ON mode display will individually show 3 1 7 4 1 SENSE programming display will show ON or AUTO 3 1 7 4 2 LDon LDoff value display the unit are V 3 1 7 4 3 Load polarity value display will...

Page 36: ...load will start to sink current after load voltage is higher than load ON voltage setting within the Config key The programmed load ON voltage for model 33501 series electronic load module is from 0...

Page 37: ...current which cab be from front panel setting or remote system setting 3 1 13 1 In Constant Current mode The High Low level load current value can be preset at lower 5 digit LCD display the unit is A...

Page 38: ...test function and the indicator LED is lit on The LCD display show SHORT on upper 5 digits LCD display shows PRESS on middle 5 digits LCD display and shows START on lower 5 digits LCD display 3 1 17...

Page 39: ...upper 5 digits LCD display shows PRESS on middle 5 digits LCD display and shows START on lower 5 digits LCD display 3 1 18 2 OPP test function parameter setting key There are 4 parameter for the OPP...

Page 40: ...LCD display show OCP on upper 5 digits LCD display shows PRESS on middle 5 digits LCD display and shows START on lower 5 digits LCD display 3 1 19 2 OCP test function parameter setting key There are 4...

Page 41: ...e short test and the Load will goes to OFF automatically when press START STOP key to stop the short test The Load will stay to ON If load was ON before short test 3 1 20 3 The SHORT OCP OPP test func...

Page 42: ...onal to the load current flow through the electronic load module This is virtual isolated to the Load input it provides the load current waveform output to an oscilloscope to evaluate the voltage and...

Page 43: ...CR L 937 5 AL 0 000 A CV H 60 00 V WH 2400 0 W CV L 60 00 V WL 0 000 W CP L 0 000W SENSE Auto CP H 0 000W LD ON 0 1 V FALL 1 A uS LD OFF 0 0 V RISE 1 A uS RANGE AUTO T HI 0 05 mS T L0 0 05 mS Table 3...

Page 44: ...000W LD ON 0 1 V FALL 2 A uS LD OFF 0 0 V RISE 2 A uS RANGE AUTO T HI 0 05 mS T L0 0 05 mS Table 3 3 33521 initialize CC L 0 0000 A VH 60 00 V CC H 0 0000 A VL 0 000 V CR H 468 7 AH 480 00 A CR L 468...

Page 45: ...0 1 V FALL 3 A uS LD OFF 0 0 V RISE 3 A uS RANGE AUTO T HI 0 05 mS T L0 0 05 mS Table 3 5 33541 initialize Table 3 6 33512 initialize CC L 0 0000 A VH 60 00 V CC H 0 0000 A VL 0 000 V CR H 625 AH 360...

Page 46: ...CV L 60 00 V WL 0 000 W CP L 0 000W SENSE Auto CP H 0 000W LD ON 0 1 V FALL 2 A uS LD OFF 0 0 V RISE 2 A uS RANGE AUTO T HI 0 05 mS T L0 0 05 mS CC L 0 0000 A VH 60 00 V CC H 0 0000 A VL 0 000 V CR H...

Page 47: ...V WL 0 000 W CP L 0 000W SENSE Auto CP H 0 000W LD ON 0 1 V FALL 3 A uS LD OFF 0 0 V RISE 3 A uS RANGE AUTO T HI 0 05 mS T L0 0 05 mS CC L 0 0000 A VH 60 00 V CC H 0 0000 A VL 0 000 V CR H 312 3 AH 7...

Page 48: ...e input terminal This is the most convenient way to connect the load input and D U T The maximum wire gage AWG14 can be used in this application 3 3 4 Both plug connectors and spade terminals It is re...

Page 49: ...ust in load current or the knob no longer continues rotating in the way 33511 RANGE I RANGE II FULL SCALE LOAD CURRENT 24A 240 A CURRENT RANGE 240 0 A METER RESOLUTION 0 1 A COURSE FINE LOAD CURRENT A...

Page 50: ...CURRENT 48A 480 A CURRENT RANGE 480 0 A METER RESOLUTION 0 1 A COURSE FINE LOAD CURRENT ADJUSTMENT Knob CC Mode 1 28A 128mA 12 8mA 12 8A 1 28A 128 mA CR Mode 213 3ms 21 33ms 2 133ms 3 3m 0 33m 0 033m...

Page 51: ...T 36A 360 A CURRENT RANGE 360 0 A METER RESOLUTION 0 1 A COURSE FINE LOAD CURRENT ADJUSTMENT KEY CC Mode 960mA 96mA 9 6mA 9 6A 960mA 96mA CR Mode 106 66ms 10 666ms 1 066ms 6 7m 0 67m 0 067m CV Mode 1...

Page 52: ...ETER RESOLUTION 0 1 A COURSE FINE LOAD CURRENT ADJUSTMENT KEY CC Mode 1 92A 192mA 9 2mA 19 2A 1 92A 192mA CR Mode 320ms 32ms 3 2ms 2 2m 0 22 m 0 022m CV Mode 1 6V 0 16V 0 016V 1 6V 0 16V 0 016V CP Mod...

Page 53: ...or feature provides an ideal solution for power supply testing it is designed to eliminate the ground problem while connect I monitor BNC and measure power supply output voltage to oscilloscope simult...

Page 54: ...indicate OPP As soon as the temperature of 33501 Series heat sink greater than 85 degree the Over temperature protection is occurred the Digital Current Meter s LCD display will indicate OtP at same...

Page 55: ...ting for a switching power supply or a rechargeable battery charge discharge characteristic testing The function capability of rear panel GPIB interface not only can set the load level and load status...

Page 56: ...CV CP NL SET STORE STATE STORE SP m NL m 1 5 SET RECALL STATE RECALL SP m NL m 1 5 SET LEV STATE LEV SP 0 1 LOW HIGH NL SET LOAD ON VOLTAGE LDONv SP NR2 NL SET LOAD OFF VOLTAGE LDOFfv SP NR2 NL SET PO...

Page 57: ...CR 2 CV 3 CP QUERY NAME NAME NL 33501 QUERY PROTECT STATE PROT NL 0 F hex QUERY CURRENT METER MEAS CURR NL QUERY VOLTAGE METER MEAS VOLT NL QUERY POWER METER MEAS POW NL QUERY LOAD ON VOLTAGE LDONv NL...

Page 58: ...A B means it can only use A or B as the command it can choose only one as the setting command 4 Terminator You have to send the program line terminator character after send the GPIB command the avail...

Page 59: ...erwise the 33501 Series load will adjust to fit the load current after programming the RANGE command 5 LOW HIGH option is for 33501 Series electronic load 6 Engineering unit for load current is Amps F...

Page 60: ...se Select Low or High level in static mode Command syntax GLOB LEV SP 0 1 LOW HIGH NL Description LEV LOW Set LOW current level in CC mode LOW resistance level in CR mode or LOW voltage level in CV mo...

Page 61: ...y location is the same for same STORE state number For Example STORE 1 STORE 5 RECALL Purpose Recall the state of load level and status which is stored by GPIB STORE command Command syntax RECALL SP 1...

Page 62: ...123456 set HIGH level load voltage to 45 123456 V PRED Purpose Set the Tlow Thigh duration of dynamic load in Constant Current mode Command Syntax PRED LOW HIGH SP NR2 NL Description The PERiod of dyn...

Page 63: ...the RISE command The engineering unit for RISE slew rate is A us For Example RISE 28 56 set RISE slew rate to 28 56 A us FALL Purpose FALL load current slew rate setting Command Syntax FALL SP NR2 NL...

Page 64: ...d to static load mode DYN 1 set load to dynamic load mode SENSE ON OFF Purpose Set the voltage sense ON OFF of Electronic load Command syntax GLOB SENS SP 0 1 OFF ON NL Description This command applie...

Page 65: ...hold voltage Command syntax LIM VOLT HIGH LOW SP NR2 NL Description This command is to set the upper lower limit value of threshold voltage When input voltage is Lower than the lower limit value or hi...

Page 66: ...the upper lower limit value of threshold power WATT When power WATT is lower than this lower limit value or higher than the upper limit value NG indicating light will come on to indicate NO GOOD For E...

Page 67: ...ance mode RES HIGH return the presently programmed high load resistance level in Constant Resistance mode POWER Purpose The Constant Resistance mode s LOW or HIGH load resistance level query command C...

Page 68: ...mber query command Command syntax NAME NL Description NAME return the activate Electronic Load channel s model number 33501 indicate the activate Electronic Load is 33501 Series Electronic load respec...

Page 69: ...ing unit is W VOLT Purpose The Constant Voltage mode s LOW or HIGH load voltage level query command Command syntax VOLT LOW HIGH NL Description VOLT LOW return the presently programmed low load voltag...

Page 70: ...SHORt status 0 indicates SHORt OFF and 1 indicates SHORt ON DYN Purpose DYNamic ON or OFF status query command Command syntax DYN NL Description DYN return the presently DYNamic ON or OFF status 0 ind...

Page 71: ...ose To read the set value of upper lower limit value of threshold current Command syntax LIM CURR HIGH LOW NL Description LIM CURR LOW Read back the lower limit set value of threshold current unit is...

Page 72: ...sensing is used in application where lead lengths are relatively short or where load regulation is not critical The 4 1 2 digit voltage Meter of 33501 Series Electronic load measures the voltage of D...

Page 73: ...sing compensates for the voltage drop in applications that require long lead lengths The 4 1 2 digit voltage Meter of 33501 Series electronic load measures the voltage of Vsense BNC input Terminal aut...

Page 74: ...nd test the DISCHARGE CHARACTERISTIC LIFE CYCLE of the battery testing 1 Static mode Fig 5 3 Major application a Voltage source testing b Power supply load regulation testing c Battery discharge testi...

Page 75: ...time required for the load input to change from 10 to 90 or from 90 to 10 of the programmed High to Low load level Rise slew rate Ilow Ihigh Ta A us Fall slew rate Ihigh Ilow Tb A us Rise time Ta Ilow...

Page 76: ...a Current source testing b Power supply current limit characteristic testing DC CURRENT SOURCE ELECTRONIC LOAD CV MODE INPUT V I Lo INPUT VOLTAGE CONSTANT VOLTAGE SETTING A B C A B C V I CV SETTING L...

Page 77: ...ation a Voltage source or Current source testing b Power resister simulation CURRENT SOURCE ELECTRONIC LOLAD CR MODE ELECTRONIC LOLAD CR MODE VOLTAGE SOURCE V I INPUT VOLTAGE LOAD CURRENT LOAD RESISTA...

Page 78: ...ion Fig 5 7 Constant current source connection 5 7 Zero Volt loading application As shown in Fig 5 8 the electronic load can be connected in series with a DC voltage source which output voltage greate...

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Prodigit 33501 Series, Operation Manual

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