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Prodigit 34000A Series Operation Manual

High power electronic load
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34000A Series
High power
Electronic Load
Operation manual
S/N:90034000A2 REV:G

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Summary of Contents for Prodigit 34000A Series

  • Page 1 34000A Series High power Electronic Load Operation manual S/N:90034000A2 REV:G...
  • Page 2 会也可能不会含有所有所列的部件。This table shows where these substances may be found in the supply chain of Prodigit electronic information products, as of the date of sale of the enclosed product. Note that some of the component types listed above may or may not be a part of the enclosed product. ○：表示该有毒有害物质在该部...
  • Page 3 Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. PRODIGIT assumes no liability for the customer's failure to comply with these requirements.
  • Page 4 DECLARATION OF CONFORMITY Company Name: PRODIGIT ELECTRONICS CO., LTD Address: 8F, No.88, Baojhong Rd., Sindian District, New Taipei City, Taiwan. Declares under sole responsibility that the product as originally delivered Product Names: DC Electronic Loads Model Numbers: 34105A, 34110A, 34115A, 34120A, 334125A, 34130A,34135A,34140A, 34205A,...
  • Page 5 SAFETY SYMBOLS Direct current (DC) Alternating current (AC) Both direct alternating Three-phase alternating current Protective earth (ground) On (Supply) Off (Supply) Fuse Caution！Refer to this manual before using the meter. Caution, risk of electric shock CAT IV – Is for measurements performed at the source of the low-voltage installation.

  • Page 6: Table Of Contents

    34000A series module load operation manual Table of Contents Chapter 1 Introduction ··························································································· 1 ················································································ 1 ENERAL DESCRIPTION ····························································································· 10 EATURES ··········································································· 10 TANDARD CCESSORIES ································································································ 10 PTION 1 ···················································································· 11 PECIFICATIONS 2 ···················································································· 12 PECIFICATIONS Chapter 2 Installation ··························································································· 30 ···························································································...
  • Page 7 5-7. CC + CV ···················································· 141 MODE OF OPERATION APPLICATION 5-8. CP + CV ···················································· 142 MODE OF OPERATION APPLICATION 5-9. ························································ 144 ONSTANT CURRENT SOURCE OPERATING 5-10. ···························································· 144 OLT LOADING APPLICATION 5-11. ··········································································· 145 ARALLEL OPERATION 5-12. 34000A OCP, OPP, SHORT ······...
  • Page 8 Fig 3-1 34000A Series dimension description ···························································· 39 Fig 3-2 34000A Series Rear Panel ········································································· 41 Fig 3-2 typical connection of 34000A series load module ············································· 78 Fig 3-3 An equivalent circuit in terms of the current monitor ········································· 79 Fig 3-4 (Correct) Connections to an oscilloscope ·······················································...
  • Page 9 Fig 5-12 34000A series load parallel operation ························································ 145 Fig 5-13 34000A series electronic load OCP, OPP, and SHORT operation flow chart ······ 146 Fig 5-16 TYPE 1 Battery Discharge Figure ····························································· 157 Fig 5-17 TYPE 2 Battery Discharge Figure ····························································· 157 Fig 5-18 TYPE 4 Battery Discharge Figure ·····························································...
  • Page 10 Table 4-10 module for each series ········································································ 130 Table 4-11 register of PROT status ······································································· 132 Table 4-12 MODEL NUMBER ············································································· 133...

  • Page 12: Chapter 1 Introduction

    34000A Series Operation Manual 1 Chapter 1 Introduction 1-1 General description The 34000A series Electronic Load is designed to test, evaluation and burn-in of DC power supplies and batteries. The 34000A series electronic load can be operated for manual and GPIB operation. The power contour of 34000A series Electronic Load is shown in Fig 1-1.1 ~ 1-1.24.

  • Page 13: Fig 1-1.3 34115A Power Contour

    2 PRODIGIT Voltage Voltage 15KW 20KW Power Curve Power Curve 0.7V 0.7V 250A 1000A Current 333.3A 1000A Current Fig 1-1.3 34115A power contour Fig 1-1.4 34120A power contour Voltage Voltage 30KW 25KW Power Curve Power Curve 0.7V 0.7V 416.6A 1000A...

  • Page 14: Fig 1-1.9 34205A Power Contour

    34000A Series Operation Manual 3 Voltage Voltage 600V 600V 10KW Power Curve Power Curve 31.25V 31.25V 8.33A 16.66A 160A Current 320A Current Fig 1-1.9 34205A power contour Fig 1-1.10 34210A power contour Voltage Voltage 600V 600V 20KW 15KW Power Curve Power Curve 31.25V...

  • Page 15: Fig 1-1.15 34235A Power Contour

    4 PRODIGIT Voltage Voltage 600V 600V 35KW 40KW Power Curve Power Curve 31.25V 31.25V 58.33A 66.66A 1120A Current 1280A Current Fig 1-1.15 34235A power contour Fig 1-1.16 34240A power contour Voltage Voltage 1000V 1000V 10KW Power Curve Power Curve 100V...

  • Page 16: Fig 1-1.21 34325A Power Contour

    34000A Series Operation Manual 5 Voltage Voltage 1000V 1000V 25KW 30KW Power Curve Power Curve 100V 100V 250A Current 300A Current Fig 1-1.21 34325A power contour Fig 1-1.22 34330A power contour Voltage Voltage 1000V 1000V 40KW 35KW Power Curve Power Curve...
  • Page 17 6 PRODIGIT 1.1.1. CC Mode With the operating mode of Constant Current, the 34000A series electronic load will sink a current in accordance with the programmed value regardless of the input voltage (see Fig.1-2). CURRENT SETTING LOAD CURRENT INPUT VOLTAGE Fig 1-2 Constant Current mode 1.1.2.
  • Page 18 INPUT VOLTAGE Fig 1-4 Constant Voltage mode 1.1.4. CP Mode: At Constant Power mode, the 34000A series Electronic Load will attempt to sink load power (load voltage * load current) in accordance with the programmed power. (see Fig 1-5). POWER...

  • Page 19: Fig 1-6 Dynamic Wave Form

    8 PRODIGIT 1.1.5. Dynamic Waveform Definition Along with static operation the 34000A Series Electronic Load are built with a Dynamic mode for operation in Constant Current (CC), Constant Resistance (CR) or Constant Power (CP). This allows the test engineer to simulate real world pulsing loads or implement a load profile that varies with time.

  • Page 20: Fig 1-7 Rise Time Transition Limitation

    34000A Series Operation Manual 9 1.1.6. Slew Rate Slew rate is defined as the change in current or voltage over time. A programmable slew rate allows for a controlled transition from one load setting to another. It can be used to minimize induced voltage drops on inductive power wiring, or to control induced transients on a test device (such as would occur during power supply transient response testing).

  • Page 21: Features

    10 PRODIGIT 1-2 Features The main features of the 34000A series of load are highlighted below. • CC, CR, CV, CP, Dynamic, and Short Operating Mode. • Remote control via a choice of computer interfaces. • High accuracy & resolution with 16 bit voltage and current meter.

  • Page 22: Specifications 1

    34000A Series Operation Manual 11 1-5 Specifications 1 LINE 100Vac~230Vac ± 10% FREQUENCY 50/60 Hz±3Hz PROTECT Circuit Breaker AC INPUT 34X05A 600VA MAX. POWER 34X10A 1000VA CONSUMPTION 34X15A 1450VA 34X20A 1900VA LINE 200Vac~230Vac ± 10% FREQUENCY 50/60 Hz±3Hz PROTECT Circuit Breaker...

  • Page 23: Specifications 2

    12 PRODIGIT 1-6 Specifications 2 Model 34105A 34110A 34115A Power 10KW 10KW 15KW 15KW Current 0 ~ 100A 0 ~ 1000A 0 ~ 100A 0 ~ 1000A 0 ~ 100A 0 ~ 1000A Voltage 0 ~ 60V 0 ~ 60V 0 ~ 60V Min.
  • Page 24 34000A Series Operation Manual 13 Model 34105A 34110A 34115A Dynamic Mode Timing .9 / 9999mS Thigh & Tlow 0.150~9.999 / 99.99 / 999.9 / 9999mS 0.150~9.999 / 99.99 / 999 Resolution 0.001 / 0.01 / 0.1 / 1mS Accuracy 1uS/10uS/100uS/1mS + 50ppm Slew rate 24mA~1.5A/uS...
  • Page 25 14 PRODIGIT Model 34120A 34125A 34130A Power 20KW 20KW 25KW 25KW 30KW 30KW Current 0 ~ 100A 0 ~ 1000A 0 ~ 100A 0 ~ 1000A 0 ~ 100A 0 ~ 1000A Voltage 0 ~ 60V 0 ~ 60V 0 ~ 60V Min.
  • Page 26 34000A Series Operation Manual 15 Model 34120A 34125A 34130A Dynamic Mode Timing Thigh & Tlow 0.150~9.999 / 99.99 / 999.9 / 9999mS Resolution 0.001 / 0.01 / 0.1 / 1mS Accuracy 1uS/10uS/100uS/1mS + 50ppm Slew rate 24mA~1.5A/uS 240mA~15A/uS 24mA~1.5A/uS 240mA~15A/uS 24mA~1.5A/uS...
  • Page 27 16 PRODIGIT Model 34135A 34140A Power 35KW 35KW 40KW 40KW Current 0 ~ 100A 0 ~ 1000A 0 ~ 100A 0 ~ 1000A Voltage 0 ~ 60V 0 ~ 60V Min. Operating Voltage 0.1V @ 100A 0.7V @ 1000A *1 0.1V @ 100A...
  • Page 28 34000A Series Operation Manual 17 Model 34135A 34140A Dynamic Mode Timing Thigh & Tlow 0.150~9.999 / 99.99 / 999.9 / 9999mS Resolution 0.001 / 0.01 / 0.1 / 1mS Accuracy 1uS/10uS/100uS/1mS + 50ppm Slew rate 24mA~1.5A/uS 240mA~15A/uS 24mA~1.5A/uS 240mA~15A/uS Resolution...
  • Page 29 18 PRODIGIT Model 34205A 34210A 34215A Power 10KW 10KW 15KW 15KW Current 0-16A 0-160A 0-32A 0-320A 0-48A 0-480A Voltage 0-600V 0-600V 0-600V Min. Operating Voltage 20V @160A 20V @ 320A 20V @ 480A Protections Over Power Protection(OPP) 105% 105% 105%...
  • Page 30 34000A Series Operation Manual 19 Model 34205A 34210A 34215A Dynamic Mode Timing Thigh & Tlow 0.050~9.999 / 99.99 / 999.9 / 9999mS Resolution 0.001 / 0.01 / 0.1 / 1mS Accuracy 1uS/10uS/100uS/1mS + 50ppm Slew rate 12.8mA~800mA/uS 128mA~8A/uS 25.6mA~1.6A/uS 256mA~16A/uS 38.4mA~2.4A/uS...
  • Page 31 20 PRODIGIT Model 34205A 34210A 34215A Dynamic Mode Timing Thigh & Tlow 0.050~9.999 / 99.99 / 999.9 / 9999mS Resolution 0.001 / 0.01 / 0.1 / 1mS Accuracy 1uS/10uS/100uS/1mS + 50ppm Slew rate 12.8mA~800mA/uS 128mA~8A/uS 25.6mA~1.6A/uS 256mA~16A/uS 38.4mA~2.4A/uS 384mA~24A/uS Resolution 3.2mA/uS...
  • Page 32 34000A Series Operation Manual 21 Model 34220A 34225A 34230A Power 20KW 20KW 25KW 25KW 30KW 30KW Current 0-64A 0-640A 0-80A 0-800A 0-96A 0-960A Voltage 0-600V 0-600V 0-600V Min. Operating Voltage 20V @ 640A 20V @ 800A 20V @ 960A Protections...
  • Page 33 22 PRODIGIT Model 34220A 34225A 34230A Dynamic Mode Timing Thigh & Tlow 0.050~9.999 / 99.99 / 999.9 / 9999mS Resolution 0.001 / 0.01 / 0.1 / 1mS Accuracy 1uS/10uS/100uS/1mS + 50ppm Slew rate 51.2mA~3.2A/uS 512mA~32A/uS 64mA~4A/uS 640mA~40A/uS 76.8mA~4.8A/uS 768mA~48A/uS Resolution 12.8mA/uS...
  • Page 34 34000A Series Operation Manual 23 Model 34235A 34240A Power 35KW 35KW 40KW 40KW Current 0 ~ 112A 0 ~ 1120A 0 ~ 128A 0 ~ 1280A Voltage 0 ~ 600V 0 ~ 600V Min. Operating Voltage 20V @ 1120A 20V @ 1280A...
  • Page 35 24 PRODIGIT Model 34235A 34240A Dynamic Mode Timing Thigh & Tlow 0.150~9.999 / 99.99 / 999.9 / 9999mS Resolution 0.001 / 0.01 / 0.1 / 1mS Accuracy 1uS/10uS/100uS/1mS + 50ppm Slew rate 89.6mA~5.6A/uS 896mA~56A/uS 102.4mA~6.4A/uS 1024mA~64A/uS Resolution 22.4mA/uS 224mA/uS 25.6mA/uS 256mA/uS Min.
  • Page 36 34000A Series Operation Manual 25 Model 34305A 34310A 34315A Power 10KW 10KW 15KW 15KW Current 0 ~ 5A 0 ~ 50A 0 ~ 10A 0 ~ 100A 0 ~ 15A 0 ~ 150A Voltage 0 ~ 1000V 0 ~ 1000V 0 ~ 1000V Min.
  • Page 37 26 PRODIGIT Model 34305A 34310A 34315A Dynamic Mode Timing Thigh & Tlow 0.050~9.999 / 99.99 / 999.9 / 9999mS Resolution 0.001 / 0.01 / 0.1 / 1mS Accuracy 1uS/10uS/100uS/1mS + 50ppm Slew rate 0.004A~0.25A/uS 0.04A~2.5A/uS 0.008A~0.5A/uS 0.08A~5A/uS 0.012A~0.75A/uS 0.12A~7.5A/uS Resolution 0.001A/uS...
  • Page 38 34000A Series Operation Manual 27 Model 34320A 34325A 34330A Power 20KW 20KW 25KW 25KW 30KW 30KW Current 0 ~ 20A 0 ~ 200A 0 ~ 25A 0 ~ 250A 0 ~ 30A 0 ~ 300A Voltage 0 ~ 1000V 0 ~ 1000V 0 ~ 1000V Min.
  • Page 39 28 PRODIGIT Model 34320A 34325A 34330A Dynamic Mode Timing Thigh & Tlow 0.050~9.999 / 99.99 / 999.9 / 9999mS Resolution 0.001 / 0.01 / 0.1 / 1mS Accuracy 1uS/10uS/100uS/1mS + 50ppm Slew rate 0.016A~1A/uS 0.16A~10A/uS 0.02A~1.25A/uS 0.2A~12.5A/uS 0.024A~1.5A/uS 0.24A~15A/uS Resolution 0.004A/uS...

  • Page 40: Table 1-1A 34000A Series Specification

    34000A Series Operation Manual 29 Model 34335A 34340A Power 35KW 35KW 40KW 40KW Current 0 ~ 35A 0 ~ 350A 0 ~ 40A 0 ~ 400A Voltage 0 ~ 1000V 0 ~ 1000V Min. Operating Voltage 30V @ 350A 30V @ 400A...

  • Page 41: Chapter 2 Installation

    Prodigit's sales and service office or representative. Your 34000A Series high power load was shipped with a power cord for the type of Terminal blocks used at your location. If the appropriated cord was not included, please contact your nearest Prodigit sales office to obtain the correct cord.

  • Page 42: Grounding Requirements

    2-3 Grounding requirements SHOCK HAZARD 1. It is requested to use the 3Pin plug connector only for 34000A Series mainframe to out of danger when electric leakage. And the complete and proper grounded is necessary. 2. The 34000A Series high power load is equipped with three conductor cable which plugs in an appropriate receptacle to ground the instrument's cover.

  • Page 43: Power Up

    Vsense input. 2-9 GPIB & RS232 interface option 2.9.1. GPIB + RS232 connector is on the rear panel of 34000A Series Mainframe for application GPIB or RS232 . 2.9.2. GPIB and RS232 interface can only be used at the same time, to Change the interface must reboot unit.

  • Page 44: Rs232 Interface Option

    Fig 2-5 shows the USB connector in the rear panel of 34000A Series mainframe. Please Refer Appendix B. Fig 2-5 34000A Series USB interface 2-13 LAN interface option Fig 2-6 shows the LAN connector in the rear panel of 34000A Series mainframe. Please refer Appendix C. Fig 2-6 34000A Series LAN interface...

  • Page 45: I/Oconnection

    The slew rate determines a rate at which the current changes to a new programmed value. The slew rate can be set at the front panel or via GPIB on the rear panel of 34000A Series high power load.

  • Page 46: Fig 2-8 The Relationship Of Load Current Load On/Off, Load Level And Output Voltage Of

    34000A Series Operation Manual 35 POWER SUPPLY TYPICAL VOLTAGE OUTPUT LOAD LOAD ON/OFF SWITCH LOAD CURRENT WAVEFORM WITH DIFFERENT LOAD CURRENT SLEW RATE LOAD LEVEL CHANGE HIGH HIGH BETWEEN HIGH AND LOW LOAD LEVEL Fig 2-8 The relationship of load current load ON/OFF, load level and output voltage of DC power...

  • Page 47: Load Wire Inductance

    This voltage applies to all of the load input terminals of the 34000A series when the impedance of the EUT is relatively small. The voltage generated by the load wire inductance (L) and the current variation (I) is expressed using the following equation.

  • Page 48: Fig 2-9 Waveform Example: Generate Unstable Oscillation

    You must be careful especially when the slew rate setting is high or switching is performed using Large currents through parallel operation. To prevent problems, connect the 34000A series and the equipment under test using the shortest Twisted Wire possible to keep the voltage caused by inductance between the minimum operating Voltage and the maximum input voltage range or set a low slew rate.

  • Page 49: Fig 2-10 Length Of Wiring

    38 PRODIGIT If only DC operation is required, a capacitor and a resistor may be connected to the load input Terminal as shown in Fig. 2-10 to alleviate oscillation. In this case, use the capacitor within its Allowable ripple current.

  • Page 50: Chapter 3 Operation

    34000A Series Operation Manual 39 Chapter 3 Operation This chapter describes the front panel function and operation of each 34000A Series load, the memory Store/Recall; please refer to the mainframe's operation manual for mainframe store/recall and GPIB/RS232/LAN/USB programming. 3-1. 34000A Series dimension description...

  • Page 51: Fig 3-1 34000A Series Dimension Description

    77.5 34X35A 1356.2 1248.2 77.5 34X40A 1512.2 1404.2 77.5 MODEL G (mm) H (mm) I (mm) J (mm) 34X05A 765.5 34X10A 765.5 34X15A 765.5 34X20A 765.5 34X25A 765.5 34X30A 765.5 34X35A 765.5 34X40A 765.5 Table 3-1 34000A series dimension description...

  • Page 52: Fig 3-2 34000A Series Rear Panel

    34000A Series Operation Manual 41 Fig 3-2 34000A Series Rear Panel...

  • Page 53: Instructions

    LCD Indicator There are four operating modes that can be selected by pressing the "MODE" key on the 34000A series Electronic Load module. The sequence is Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), and Constant Power (CP). Each time the "MODE" key is pressed the operating mode is changed.
  • Page 54 34000A Series Operation Manual 43 Please note that if V-sense is set to ‘AUTO’ and the sense leads are connected to The DUT the losses need to be approx. 0.7V (34100A), 7V (34200A) or 13V (34300A) before the display compensates for the voltage loss.
  • Page 55 44 PRODIGIT 3.2.7.1. PRESET mode. The value of the setting entered on the right display Changes depending on the operating MODE that has been selected • If CC mode is selected the right display provides setting in amps "A". • If CR mode is selected the right display provides setting in ohms “Ω”...
  • Page 56 34000A Series Operation Manual 45 3.2.7.5. SHORT test. This allows the parameters of the short test to be set up. Each press of the SHORT button moves the setting function. The Sequence of the short test along with the setting value is as follows: Short Press Start (pressing the red START/STOP button starts the test) ...
  • Page 57 3.2.11. Key and LED The 34000A series Load Module features 2 setting ranges for CC, CR, CV & CP Operation. This allows improved resolution for setting low values. When left in the Default AUTO mode the changeover between ranges is automatic depending on...
  • Page 58 34000A Series Operation Manual 47 If desired the RANGE button can be pressed to force the unit to operate only in RANGE II. This is signaled by the accompanying LED becoming lit. Please note That it is only possible to force RANGE II in CC mode.
  • Page 59 48 PRODIGIT 3.2.13.5. Dynamic mode (CC, CR or CP modes only): Each press of the DYN button cycles through the dynamic load settings. The DYN settings are used in conjunction with the High and Low levels Of load current to define the dynamic waveform. Each press of the DYN Button switches from T_Hi (time high), to T_Lo (time low), to Rise time And then to fall time.
  • Page 60 34000A Series Operation Manual 49 Setting upper limit voltage VH , Middle 5 digit LCD display「V-Hi」,right 5  digit LCD display the unit is "V" ,The V-Hi set range from 0.00 V to 600.00V Step 0.01V by rotating the Setting knob.
  • Page 61 50 PRODIGIT Setting Upper limit current IH , Middle 5 digit LCD display「I-Hi」,right 5 digit  LCD display the unit is "A”, The I-Hi set range from 0.000 A to 320.00A step 0.0001A by rotating the Setting knob. 34210A 600V/320A,10KW DC ELECTRONIC LOAD LAN USB CP SEQ.
  • Page 62 34000A Series Operation Manual 51 Setting Upper limit power WH, Middle 5 digit LCD display「W-Hi」right 5  digit LCD display the unit is "W", The W-Hi set range from 0 W to 10000W step 1W by rotating the Setting knob.
  • Page 63 52 PRODIGIT Setting NG ON/OFF, When exceed VH、VL、IH、IL、WH、WL One of  these Whether NG on LCD display. 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range...
  • Page 64 34000A Series Operation Manual 53 CR mode, press limits key to set the V-Hi and V-Lo voltage upper and lower  limits of the GO / NG. High Load input Voltage Resistance Load Current CV mode, press limits key to set the I-Hi and I-Lo Current upper and lower ...
  • Page 65 54 PRODIGIT setting 3.2.15. The DYN button allows the user to define the timings of the dynamic load Waveform Firstly the high and low levels of load current will need to be set via the LEVEL Switch. The RISE and FALL times between the low load current and the high Load current along with the TIME the waveform is HIGH and the TIME LOW Can is Set via the DYN menu.
  • Page 66 34000A Series Operation Manual 55 Setting level Low period, Middle 5 digit LCD display will show「T-Lo」, Right  5 digit LCD display will show setting value, the unit is “ms” , The T-Lo set range from 0.010 ms to 9999 ms step 0.001ms by rotating the Setting knob.
  • Page 67 56 PRODIGIT Setting fall time, Middle 5 digit LCD display will show「FALL」, Right 5 digit  LCD display will show setting value, the unit is “A/μs” , The FALL time set range from 0.256A/us to 16A/us step 64mA/us by rotating the Setting knob.
  • Page 68 34000A Series Operation Manual 57 34210A 600V/320A,10KW DC ELECTRONIC LOAD LAN USB CP SEQ. Range Range GPIB REM RS232 DYN STA Auto 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 34210A...
  • Page 69 58 PRODIGIT 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 34210A 600V/320A,10KW DC ELECTRONIC LOAD...
  • Page 70 34000A Series Operation Manual 59 Setting Vsense and load input switching methods, the middle of the 5 digit LCD  Display will show "SENSE", Right 5 digit LCD display will show "AUTO" or "ON". 34210A 600V/320A,10KW DC ELECTRONIC LOAD LAN USB CP SEQ.
  • Page 71 60 PRODIGIT Setting Load OFF voltage, the middle of the 5 digit LCD display will show  "LDoFF", Right the 5 digit LCD display will show settings value, the units is V, The Load OFF Voltage set range from 0.0V to 99.00V step 0.01V by rotating The Setting knob.
  • Page 72 Connecting UUT (PV panel) to load input terminal Sent MPPTIME interval time (MPPTIME{sp} NR2, MPPTIME 1000, the range is 1000 to 60000 mS), the record data is no limitation in 34000A series internal memory. Sent command MPPT ON to start tracking MPP of UUT.
  • Page 73 62 PRODIGIT Setting BATT2 , the middle of the 5 digit LCD display will show "BATT2", Right  The 5 digit LCD display will show settings value, the units is V, The BATT2 Set range from 0.00V to 600.00V step 0.01V by rotating the Setting knob.
  • Page 74 The SHORT key allows the parameters of a SHORT circuit test to be entered. The SHORT test will attempt to sink high current up to the 34000A series load maximum current in order to check the power source’s protection and behavior.
  • Page 75 64 PRODIGIT 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 34210A 600V/320A,10KW DC ELECTRONIC LOAD...
  • Page 76 34000A Series Operation Manual 65 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 34210A 600V/320A,10KW DC ELECTRONIC LOAD LAN USB CP SEQ. Range Range GPIB REM RS232 DYN STA Auto V-Hi : Short test voltage check upper limitation setting, The LCD display ...
  • Page 77 66 PRODIGIT V-Lo : Short test voltage check lower limitation setting, The LCD display  shows 「SHORT」on Left 5 digit LCD display, Middle 5 digit LCD display「 value V-Lo」,Right 5 digit LCD display setting , the unit is "V", the V-Hi setting range from 0.00V to 600.00V step 0.01V by rotating the setting knob.
  • Page 78 34000A Series Operation Manual 67 adjusted by the rotary knob and can be read from the Right display during Setting. The setting sequence is shown below: OCP PRESS START (pressing the red start/stop key starts test)  OCP I STAR (current starting point of the OCP test) ...
  • Page 79 68 PRODIGIT 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto ISTAR: setting the start current point, The LCD display shows「OCP」on ...
  • Page 80 34000A Series Operation Manual 69 ISTEP: setting the increment step current point, The LCD display shows「  OCP」on Left 5 digit LCD display, Middle 5 digit LCD display「ISTEP value 」,Right 5 digit LCD display setting , the unit is "A".
  • Page 81 70 PRODIGIT Vth: Setting threshold voltage; The LCD display shows 「OCP」on Left 5  Digit LCD display, Middle 5 digit LCD display「Vth」,Right 5 digit LCD Display setting value, the unit is "V", the setting range is 0.00V to the full Scale of the Voltage specification.
  • Page 82 34000A Series Operation Manual 71 Pressing the OPP key once will cause the button to illuminate. The message “OPP PRESS START” will be shown across the 3 displays. Each press of the OPP button moves the menu on one step. The Left and Middle LCDs show the currently selected test parameter as text.
  • Page 83 72 PRODIGIT 34210A 600V/100A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto PSTAR: setting the start power, The LCD display shows 「OPP」on Left 5 ...
  • Page 84 34000A Series Operation Manual 73 PSTEP: setting the increment step power, The LCD display shows 「OPP」  on Left 5 digit LCD display, Middle 5 digit LCD display「PSTEP」,Right 5 value digit LCD display setting , the unit is "W", the setting range is 0.00W to the full scale of the CP mode specification.
  • Page 85 74 PRODIGIT Vth : Setting threshold voltage; The LCD display shows 「OPP」on Left 5  digit LCD display, Middle 5 digit LCD display「Vth」,Right 5 digit LCD value display setting , the unit is "V", the setting range is 0.00V to the full scale of the Voltage specification.
  • Page 86 34000A Series Operation Manual 75 3.2.21. ROTARY Knob and ARROW Keys The ROTARY knob and ARROW keys are used to increase or decrease the set values. CLOCKWISE operation of the ROTARY Knob increases the setting value.  34210A 600V/100A,10KW DC ELECTRONIC LOAD...
  • Page 87 76 PRODIGIT 34210A 600V/320A,10KW DC ELECTRONIC LOAD LAN USB CP SEQ. Range Range GPIB REM RS232 DYN STA Auto DOWN ARROW key reduces the setting value.  34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM...
  • Page 88 DO NOT confuse them with the smaller SENSE terminals. Please ensure that the voltage and current rating of the DUT do not exceed the maximum rating of the 34000A Series load module being used. Please also check the output polarity of the DUT prior to connection and testing.

  • Page 89: Fig 3-2 Typical Connection Of 34000A Series Load Module

    3.2.23. V-sense input terminal The V-sense terminals can be used to compensate for a voltage drop in the load lines between the power supply and the 34000A series Electronic Load. This is a useful feature useful when the load current is relatively high.

  • Page 90: Fig 3-3 An Equivalent Circuit In Terms Of The Current Monitor

    34000A Series Operation Manual 79 The current monitor of this unit is NOT isolated. Please be careful when you connect an oscilloscope. Improper connections are likely to cause damage. Please follow the connection rule on the following page. Drain Load+...

  • Page 91: Fig 3-4 (Correct) Connections To An Oscilloscope

    80 PRODIGIT Fig 3-4 (Correct) Connections to an oscilloscope Fig 3-5 (Wrong) Connections to an oscilloscope If the probes connection is reversed as shown in Fig 3-5, a large current would flow through the probe and the internal circuitry of the oscilloscope is likely to be damaged.

  • Page 92: Fig 3-6 Analog Programming Example

    34000A Series Operation Manual 81 3.2.25. Analog programming input The Electronic Load has an analog programming input on the rear panel of the mainframe. The analogue programming input enables the load module to track and load according to an external 0-10V (ac or ac + dc) signal.

  • Page 93: 34000A Series Operating Instructions (1)

    3.3.1. SEQ. indicator when entering AUTO SEQUENCE mode, LCD indicator will light up. 3.3.2. In GPIB mode: It is GPIB inside. The LCD will be lit GPIB when Power ON. If 34000A series is controlled by GPIB through PC, the GPIB will be lit.

  • Page 94: 34000A Series System Operating Instructions (2)

    34000A Series Operation Manual 83 3-4. 34000A Series System Operating Instructions (2) 3.4.1. Shift key to switch the key to the second function key. 3.4.2. KEYPAD KEY: AUTO SEQUENCE edits the settings, test and RECALL / STORE key. 3.4.3. SYSTEM: Press SYSTEM to set the argument ,GPIB address,RS232 BAUD- RATE, WAKE UP, buzzer Alarm power ON/OFF and Master /Slave Parallel control.

  • Page 95: 34000A Series System Operating Instructions (3)

    GPIB address of the representative, Press UP, DOWN buttons to adjust the GPIB address 1~30, Key and then press ENTER, 34000A series GPIB Address value is saved, Press system key four times to leave the GPIB address configuration State.
  • Page 96 RS232 on left 5 digit LCD display, Middle 5 digit LCD display baud, right 5 digit LCD display setting BAUD-RATE, Press UP, DOWN buttons to adjust the value of BAUD RATE, Key and then press ENTER, 34000A series is saved setting BAUD RATE, press system key three times to leave the BAUD-RATE setting state.
  • Page 97 This function is designed for auto setting the load status and load level in turning on the 34000A series every time. SYSTEM key first by the three, The LCD display shows WAKE on left 5 digit LCD display, Middle 5 digit LCD display UP, right 5 digit LCD display setting, Press UP, DOWN buttons to adjust the 0~150.
  • Page 98 DYN STA Auto Note:setting system parameters, if the input is required to use the KEYPAD ENTER button to confirm, otherwise 34000A series will not save the changes the settings. Note:Pass: Automatic test mode, no NG state, is the PASS. Fail: Automatic test mode, any test if the NG then is the FAIL.
  • Page 99 88 PRODIGIT 34210A 600V/320A,10KW DC ELECTRONIC LOAD RS23 Range Range LAN USB CP SEQ. GPIB REM DYN STA Auto 3.5.1.6 The following procedure should be followed before applying power on Master/Slave mains: Step1. Turn on (O) the Slave POWER switch.
  • Page 100 34000A Series Operation Manual 89 3.5.1.10 Manual operation： (34210A MASTER/SLAVE model the following is example)PRESET setting:CC/CR/CV/CP Mode as Figure，CC setting 100A=Master 50A + Slave 50A，CR:2250Ω=Master//Slave=4500Ω//4500Ω, CV: 100V=Master 100V=Slave=100V，CP:1000W=Master 500W + Slave 500W. 34210A 600V/320A,10KW DC ELECTRONIC LOAD Master Display RS23...
  • Page 101 90 PRODIGIT 34210A 600V/320A,10KW DC ELECTRONIC LOAD Slave Display RS23 Range Range LAN USB CP SEQ. GPIB REM DYN STA Auto Figure CV Set 100V 34210A 600V/320A,10KW DC ELECTRONIC LOAD Master Display RS23 Range Range LAN USB CP SEQ. GPIB REM...
  • Page 102 RS232/USB/LAN command 3.5.2. The function keys on the front panel of 34000A series mainframe are designed For high testing throughput purpose. There are 150 operation states or testing Steps can be store in the EEPROM memory of 34000A series electronic load Respectively, each state can store or recall the load status and level for Electronic load simultaneously.
  • Page 103 3.5.3. AUTO SEQUENCE instructions 34000A series has AUTO SEQUENCE function, 34000A series to select the State F1~F9 Automatic testing can be edited, 16 steps each group can be set to Select 150 group of the STATE, within each step can be set TEST TIME Units Of 100 ms range (0.1s ~ 9.9s).
  • Page 104 34000A Series Operation Manual 93 • Test time setting: Press ENTER to set TIME value, press UP, DOWN keys or KEYPAD to Adjust settings, range from 100 ms~9999ms. Press ENTER key or SAVE key to finish editing the action is set to REPEAT, if you do not save the settings, press the EXIT key to leave edit Mode.

  • Page 105: Fig 3-7 Store (Edit) Mode Operationo Flow-Chart

    94 PRODIGIT Fig 3-7 STORE (EDIT) MODE OPERATIONO FLOW-CHART 3.5.3.2. TEST MODE • Press SHIFT key, press the SEQ. key to enter the AUTO SEQUENCE Mode, Press UP, DOWN key to select TEST, the LCD display shows TEST on left 5 digit LCD display, Middle 5 digit LCD display FX, “FX”...
  • Page 106 34000A Series Operation Manual 95 • Test LCD will display "SXX", "XX" on behalf of the test of STEP, if the test result is NG, the LCD will show "NG" (flashing) and suspension of the test, this time users can test or ENTER key to continue Press EXIT...

  • Page 107: Fig 3-8 Test Mode Operation Flow-Cha

    96 PRODIGIT Fig 3-8 TEST MODE OPERATION FLOW-CHA...

  • Page 108: Initial Setting Of 34000A Series Load

    34000A Series Operation Manual 97 3-6. Initial setting of 34000A series load The following tables detail the initial settings of the 34000A series of Load when Shipped from the factory. Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 60.00 V...

  • Page 109: Table 3-4 34115A Initialize

    98 PRODIGIT Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 60.00 V CC H+Preset 0.000 A V_Lo 0.00 V CR H+Preset 3600 Ω I_Hi 1000.0 A LIMIT CR L+Preset 3600 Ω I_Lo 0.00 A CV H+Preset 60.00 V W_Hi 15000.0 W...

  • Page 110: Table 3-6 34125A Initialize

    34000A Series Operation Manual 99 Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 60.00 V CC H+Preset 0.000 A V_Lo 0.00 V CR H+Preset 3600 Ω I_Hi 1000.0 A LIMIT CR L+Preset 3600 Ω I_Lo 0.00 A CV H+Preset 60.00 V...

  • Page 111: Table 3-8 34135A Initialize

    100 PRODIGIT Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 60.00 V CC H+Preset 0.000 A V_Lo 0.00 V CR H+Preset 3600 Ω I_Hi 1000.0 A LIMIT CR L+Preset 3600 Ω I_Lo 0.00 A CV H+Preset 60.00 V W_Hi 35000.0 W...

  • Page 112: Table 3-10 34205A Initialize

    34000A Series Operation Manual 101 Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 600.00 V CC H+Preset 0.000 A V_Lo 0.00 V CR H+Preset 15000 Ω I_Hi 160.00 A LIMIT CR L+Preset 15000 Ω I_Lo 0.00 A CV H+Preset 600.00 V...

  • Page 113: Table 3-12 34215A Initialize

    102 PRODIGIT Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 600.00 V CC H+Preset 0.000 A V_Lo 0.00 V CR H+Preset 15000 Ω I_Hi 480.00 A LIMIT CR L+Preset 15000 Ω I_Lo 0.00 A CV H+Preset 600.00 V W_Hi 15000.0 W...

  • Page 114: Table 3-14 34225A Initialize

    34000A Series Operation Manual 103 Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 600.00 V CC H+Preset 0.000 A V_Lo 0.00 V CR H+Preset 11250 Ω I_Hi 800.00 A LIMIT CR L+Preset 11250 Ω I_Lo 0.00 A CV H+Preset 600.00 V...

  • Page 115: Table 3-16 34235A Initialize

    104 PRODIGIT Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 600.00 V CC H+Preset 0.000 A V_Lo 0.00 V CR H+Preset 6248.4 Ω I_Hi 1120.0 A LIMIT CR L+Preset 6248.4 Ω I_Lo 0.00 A CV H+Preset 600.00 V W_Hi 35000.0 W...

  • Page 116: Table 3-18 34305A Initialize

    34000A Series Operation Manual 105 Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 1000.0 V CC H+Preset 0.000 A V_Lo 0.00 V CR H+Preset 24000 Ω I_Hi 50.000 A LIMIT CR L+Preset 24000 Ω I_Lo 0.00 A CV H+Preset 1000.0 V...

  • Page 117: Table 3-20 34315A Initialize

    106 PRODIGIT Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 1000.0 V CC H+Preset 0.000 A V_Lo 0.00 V CR H+Preset 8000 Ω I_Hi 150.00 A LIMIT CR L+Preset 8000 Ω I_Lo 0.00 A CV H+Preset 1000.0 V W_Hi 15000.0 W...

  • Page 118: Table 3-22 34325A Initialize

    34000A Series Operation Manual 107 Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 1000.0 V CC H+Preset 0.000 A V_Lo 0.00 V CR H+Preset 4800 Ω I_Hi 250.00 A LIMIT CR L+Preset 4800 Ω I_Lo 0.00 A CV H+Preset 1000.0 V...

  • Page 119: Table 3-24 34335A Initialize

    108 PRODIGIT Item Initial value Item Initial value CC L+Preset 0.000 A V_Hi 1000.0 V CC H+Preset 0.000 A V_Lo 0.00 V CR H+Preset 3428.4 Ω I_Hi 350.00 A LIMIT CR L+Preset 3428.4Ω I_Lo 0.00 A CV H+Preset 1000.0 V W_Hi 35000.0 W...

  • Page 120: Protection Features

    CAUTION: Never apply an AC voltage to the input of the 34000A series Load. Do not apply a DC voltage that is higher than 34000A series Load rating. If this advice is ignored it is likely that damage will be caused to the electronic load module.
  • Page 121 If a reverse polarity situation occurs the load will sink power even if the LOAD button is OFF. No current will be displayed on the 34000A series load module. Current up to the load’s maximum current rating will be tolerated in reverse polarity. However there is no OVP OCP and OPP protection.

  • Page 122: Chapter 4 Communication Interface Programming Operation

    Parity ：None Data bit ：8 bits Stop bit ：1 bit Handshaking ：Hardware (RTS/CTS). The RS232 Interface connector of 34000A Series rear panel, RS232 is shown in Fig4-1. Inside of 34000A Series Mainframe RS232 port on PC RS232 port 34000A Load...

  • Page 123: Fig 4-1 Rs232 Interface Connection Of Rear Panel

    112 PRODIGIT Abbreviation Description Pin1 Carrier Detect Pin2 Receive Pin3 Transmit Pin4 Data Terminal Ready Pin5 Ground Pin6 Data Set Ready Pin7 Request To Send Pin8 Clear To Send Pin9 Ring Indicator Fig 4-1 RS232 INTERFACE CONNECTION OF REAR PANEL...

  • Page 124: 34000A Series Ommunication Nterface Programming Command List 1

    34000A Series Operation Manual 113 4-3. 34000A Series Communication Interface programming command list1 SIMPLE TYPE FORMAT SETTING PRESET NUMERIC COMMAND MODEL REMARK 34XXXA RISE{SP} {NR2} {;NL} A/us FALL{SP} {;NL} A/us PERD:{HIGH LOW} {SP} {NR2} {;NL} LDONV{SP} {NR2} {;NL} LDOFFV{SP} {NR2} {;NL} CC CURR:{HIGH LOW} {SP} {NR2}{;NL}...

  • Page 125: Table 4-2 Remote Control Query Command Summary

    114 PRODIGIT QUERY PRESET NUMERIC COMMAND MODEL RETURN 34XXXA RISE{?} {;NL} ###.#### FALL{?} {;NL} ###.#### PERD:{HIGH LOW}{?} {;NL} ###.#### LDONV{?}{;NL} ###.#### LDOFFV{?}{;NL} ###.#### CC CURR:{HIGH LOW} {?} {;NL} ###.#### CP:{HIGH LOW} {?} {;NL} ###.#### CR RES:{HIGH LOW} {?} {;NL} ###.#### CV VOLT:{HIGH LOW} {?} {;NL}...

  • Page 126: Table 4-4 Stage Command Summary

    34000A Series Operation Manual 115 STAGE COMMAND MODEL REMARK 34XXXA LOAD {SP}{ON│OFF│1│0} {;│NL} LOAD {?} {;│NL} 0:OFF 1:ON MODE {SP} {CC│CR│CV│CP} {;│NL} MODE {?} {;│NL} 0:CC 1:CR 2:CV 3:CP SHOR {SP} {ON│OFF│1│0} {;│NL} SHOR {?} {;│NL} 0:OFF 1:ON PRES {SP} {ON│OFF│1│0} {;│NL} PRES {?} {;│NL}...

  • Page 127: Table 4-5 System Command Summary

    116 PRODIGIT System command： COMMAND NOTE RETURN RECALL {SP} {m}{;NL} m=1~150 m:STATE STORE {SP} {m}{;NL} m=1~150 m:STATE RS232/USB/LAN REMOTE {;NL} command RS232/USB/LAN LOCAL{; NL} command NAME {?} {; NL} “XXXXX” Table 4-5 SYSTEM COMMAND SUMMARY Measure command COMMAND 34XXXA RETURN MEAS:CURR {?}{;NL}...

  • Page 128: Table 4-7 Auto Sequence Command List

    34000A Series Operation Manual 117 AUTO SEQUENCE: AUTO SEQUENCE SET COMMAND NOTE RETURN FILE {SP} {n}{; NL} n=1~9 STEP {SP} {n} {;NL} n=1~16 1~16 TOTSTEP {SP} {n}{;NL} Total step n=1~16 1~16 SB {SP} {m} {;NL} m=1~150 m:STATE TIME {SP} {NR2} {;NL}...

  • Page 129: 34000A Series Ommunication Nterface Programming Command List 2

    118 PRODIGIT 4-4. 34000A Series Communication Interface programming command list 2 COMPLEX TYPE FORMAT SETTING COMMAND SUMMARY MODEL REMARK 34XXXA [PRESet:] RISE{SP} {NR2} {;NL} A/us [PRESet:] FALL{SP} {;NL} A/us [PRESet:]PERIPERD:HIGHLOW{SP}{NR2}{;NL} [PRESet:] LDONv{SP} {NR2} {;NL} [PRESet:] LDOFfv{SP} {NR2} {;NL} [PRESet:]CCCURR:{HIGHLOW}{SP}{NR2}{;NL} [PRESet:] CP:{HIGH LOW} {SP} {NR2}{;NL} [PRESet:]CRRES:{HIGH LOW} {SP} {NR2}{;NL}...

  • Page 130: Table 4-2B Communication Interface Programming Query Command Summary

    34000A Series Operation Manual 119 QUERY COMMAND SUMMARY MODEL RETURN 34XXXA [PRESet:] RISE{?} {;NL} ###.#### [PRESet:] FALL{?} {;NL} ###.#### [PRESet:] PERI  PERD：{HIGH LOW}{?} {;NL} ###.#### [PRESet:] LDONv {?}{;NL} ###.#### [PRESet:] LDOFfv {?}{;NL} ###.#### [PRESet:] CCCURR:{HIGH LOW} {?} {;NL} ###.#### [PRESet:] CP:{HIGH LOW} {?} {;NL}...

  • Page 131: Table 4-3B Communication Interface Programming Limit Command Summary

    120 PRODIGIT LIMIT MODEL RETURN 34XXXA LIMit:CURRent:{HIGH LOW}{SP}{NR2}{;NL} LIMit: CURRent :{ HIGH LOW }{?}{;NL} ###.#### IH IL{SP}{NR2}{;NL} IH IL {?}{;NL} LIMit:POWer:{HIGH LOW}{SP}{NR2}{;NL} LIMit: POWer:{ HIGH LOW }{?}{;NL} ###.#### WH WL{SP}{NR2}{;NL} WH WL {?}{;NL} ####.### LIMit:VOLTage:{HIGH LOW}{SP}{NR2}{;NL} LIMit: VOLTage:{ HIGH LOW }{?}{;NL} ###.####...

  • Page 132: Table 4-4B Stage Command Summary

    34000A Series Operation Manual 121 STAGE COMMAND MODEL REMARK 34XXXA [STATe:] LOAD {SP}{ON│OFF} {;│NL} [STATe:] LOAD {?} {;│NL} 0:OFF 1:ON [STATe:] MODE {SP} {CC│CR│CV│CP} {;NL} [STATe:] MODE {?} {;│NL} 0|1|2|3:CC|CR|CV|CP [STATe:] SHORt {SP} {ON│OFF} {;│NL} [STATe:] SHORt {?} {;│NL} 0:OFF 1:ON [STATe:] PRESet {SP} {ON│OFF} {;│NL}...

  • Page 133: Table 4-5B System Command Summary

    122 PRODIGIT SYSTEM COMMAND: COMMAND NOTE RETURN [SYStem:] RECall {SP} {m}{;NL} m=1~150 [SYStem:] STORe {SP} {m}{;NL} m=1~150 RS232/USB/LAN [SYStem:] REMOTE {;NL} command RS232/USB/LAN [SYStem:] LOCAL{; NL} command [SYStem:] NAME {?} {; NL} “XXXXX” Table 4-5B SYSTEM COMMAND SUMMARY measure command:...

  • Page 134: The Description Of Abbreviation

    Terminator You have to send the program line terminator character after send the GPIB command, the available command terminator characters which can be accepted in 34000A Series mainframe is listed in Table 4-9. LF WITH EOI CR,LF CR,LF WITH EOI Table 4-9 GPIB COMMAND TERMINATOR Semicolon〝;〞:...

  • Page 135: Communication Interface Programming Command Description

    The command will not be available. The least significant number is the 3th behind the decimal point. 34000A Series will set to the maximum value of the model automatically when The set RISE is over the specification of Load. The unit is A/uS.
  • Page 136 The least significant number is the 5th behind the decimal point. 34000A Series will set the maximum value of current of the Load Automatically when the value which has been set is over the maximum of The load.
  • Page 137 126 PRODIGIT when the value of Voltage which has been set is over the specification of Load. The Voltage value which has been set of LOW has to be smaller than HIGH. The unit is Voltage (V) OCP: START Syntax: [PRESet:] OCP: START {SP}{NR2}{ ;...
  • Page 138 34000A Series Operation Manual 127 OPP: STOP Syntax: [PRESet:] OPP: STOP {SP}{NR2}{ ; NL} [PRESet:] OPP: STOP ? { ; NL} Purpose: Set and read the maximum value of OPP test Description: This command is used for setting the maximum value (P-STOP) of OPP test...
  • Page 139 128 PRODIGIT Purpose: This command is used for setting battery UVP Voltage. BATT TIME Syntax: BATT: TIME{SP}{NR1}{ ; NL } Purpose: This command is used for setting battery Discharge time to 1~99999 sec. BATT STEP Syntax: BATT: STEP{SP} {n} { ; NL} Purpose: This command is used for setting TYPE 4 n= 1~3, TYPE 5 n= 1~9.
  • Page 140 34000A Series Operation Manual 129 4.7.2. LIMIT Set and read the top and bottom of the Load judgment NG limit [LIMit: ] CURRent: {HIGHLOW} or IHIL Syntax: [LIMit]: CURRent: {HIGHLOW}{SP}{ NR2 }{ ; NL} [LIMit]: CURRent: {HIGHLOW}? {; NL} [IHIL]{SP}{NR2}{; NL} [IHIL}? { ;...
  • Page 141 130 PRODIGIT equal setting Constant Voltage, into a Constant Voltage mode. [LIMit:]ADDCV: VOLtage {SP} {ONOFF} Syntax: [LIMit:] ADDCV: VOLtage {SP}{ON OFF}{;NL} Purpose: Start and stop CC+CV or CP+CV test mode. Description: At that time in Constant current mode or constant power mode to perform CC + CV or CP + CV mode.
  • Page 142 GOOD) will be put out .Set for”1” the LCD will be lit. - [STATe:] PROTect? Syntax: [ STATe: ] PROTect？{ ; NL} Purpose: Query if there have protection flag which had been set in this 34000A Series. Description: 1. PROT? Means the status of Protection of 34XXXA. “1” means OPP occurred.”4”means OVP.
  • Page 143 [STATe:] STOP Syntax: [STATe:] STOP {; NL} Purpose: Set for Load to stop the test 4.7.4. SYSTEM Set and Read the Status of 34000A Series [SYStem:] RECall {SP} m {, n} Syntax: [SYStem:] RECall {SP} m {; NL} Purpose: Recall the status of Loading which had been saved in the Memory Description: This command is for recalling the status of Load which had been saved in The Memory.
  • Page 144 34000A Series Operation Manual 133 Memory [SYStem:] STORe {SP} m {, n} Syntax: [SYStem:] STORe {SP} m {; NL} Purpose: Save the status of Loading to the Memory Description: This command is for saving the status of Loading to the Memory.

  • Page 145: Chapter 5 Applications

    When connected in local sense mode the 5 digit voltage meter of the 34000A series Electronic load measures the voltage at its DC input terminals. The connecting leads between the DUT and the Electronic Load should be bundled or tie wrapped together to minimize inductance.

  • Page 146: Remote Sense Connections

    34000A Series Operation Manual 135 5-2. Remote sense connections Remote sensing compensates for the voltage drop in applications that require long lead lengths. It is useful under low voltage high current conditions. The remote voltage sense terminals (Vs+) and (Vs-) of the load are connected to (+) and (-) output of the DC Source.

  • Page 147: Constant Current Mode Application

    Discharge Characteristics and the Life Cycle of cells and battery packs. In CC operation the 34000A series can operate as a static load with switchable high and low current levels. It is also possible to operate the load dynamically enabling the user to adjust sink current with time.

  • Page 148: Fig 5-4 Dynamic Load Current With Independent Programmed Rise/Fall Slew Rate

    Programming input allows a complex dynamic waveform to be set up on an external Oscillator. The 34000A series load will track and load according to the external Signal as long as it is within its dynamic capability. The input signal can be the range Of 0-10V (dc+ac).

  • Page 149: Constant Voltage Mode Application

    138 PRODIGIT 5-4. Constant Voltage mode application In Constant Voltage (CV) operation the load will attempt to sink as much current as required in order to reach the set voltage value. CV operation is useful in checking the load regulation of dc current sources. The CV mode is also ideal for characterizing the current limit of dc power supplies.

  • Page 150: Constant Resistance Mode Application

    This feature is found within the dynamic settings as RISE slew rate. Even in static mode the 34000A series load will regulate its current demand at ‘Load ON’ in line with the adjusted RISE slew rate. The FALL slew rate also in the dynamic settings allows the current ramp down to be controlled at ‘Load OFF’.

  • Page 151: Constant Power Mode Application

    (Fig 5-7b). Operating the 34000A series electronic load in CP mode is ideal for testing the characteristics of a battery. This is because as the battery voltage drops the load current will automatically increase in order to keep the CP setting.

  • Page 152: Cc + Cv Mode Of Operation Application

    Is turned on, the CPRSP gear position must be set. 5-7. CC + CV mode of operation application Operating in CC + CV mode, 34000A series at the same time as a Constant Current and Constant Voltage Load, as shown in Fig 5-8.

  • Page 153: Cp + Cv Mode Of Operation Application

    （stop test CC+CV mode ） 5-8. CP + CV mode of operation application Operating in CP + CV mode, 34000A series at the same time as a Constant Power and Constant Voltage Load, as shown in Fig 5-9. When Operating at Constant Power (CP) load, 34000A series electronic load provides specified power, independent Constant Voltage source (VM) is output voltage.
  • Page 154 34000A Series Operation Manual 143 Remote Control CP+CV for example REMOTE (Setting Remote Control) MODE CP (Setting CP mode) CP：HIGH 100 (Setting Constant power is 100W) LIM: ADDCV: VOLT 50 (Setting Constant Voltage is 50V) LIM：ADDCV ON (start test CP+CV mode) MEAS：POW?

  • Page 155: Constant Current Source Operating

    144 PRODIGIT 5-9. Constant current source operating 34000A High-power electronic load can be used as a costant current source when used in series with a constant voltage source for charging the battery or other applications, as shown in Fig 5-10.

  • Page 156: Parallel Operation

    DC Source it is not permissible to operate in dynamic mode. Note: 1. the electronic load only may carry on the parallel operation under the fixed electric current Pattern. 2. The electronic load do not use under series connection. Fig 5-12 34000A series load parallel operation...

  • Page 157: 34000A Series Electronic Load Ocp, Opp, Short Operation Flow Chart

    SET OPP: STEP SP NR2 SET SVL SP NR2 SET OCP:STOP SP NR2 SET OPP:STOP SP NR2 SET STIME SP NR2 VTH NR2 START TESTING? OCP? OPP? STOP Fig 5-13 34000A series electronic load OCP, OPP, and SHORT operation flow chart...

  • Page 158: Power Supply Ocp Testing

    34000A Series Operation Manual 147 5-13. Power Supply OCP testing 5.13.1 OCP Manual control Example: 5.13.1.1. First, press Limit Key function to setting I_Hi & I_Lo. 5.13.1.2. Setting OCP test, press OCP key to the next step. 34210A 600V/320A,10KW DC ELECTRONIC LOAD LAN USB CP SEQ.
  • Page 159 148 PRODIGIT 5.13.1.6. Setting OCP VTH 6.00V, press OCP key to the next step. 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 5.13.1.7. Press START/STOP test key. 34210A 600V/320A,10KW DC ELECTRONIC LOAD...
  • Page 160 34000A Series Operation Manual 149 5.13.1.8. the UUT’s output voltage drop-out lower than the threshold voltage(V-th Setting), and the OCP trip point is between I_Hi and I_Lo limitation, then Middle 5 digits LCD display will shows "PASS", otherwise shows "FAIL".

  • Page 161: Power Supply Opp Testing

    150 PRODIGIT 5-14. Power Supply OPP testing 5.14.1. OPP Manual control Example: 5.14.1.1. First, press Limit Key function to setting W_Hi & W_Lo. 5.14.1.2. Setting OPP test, press OPP key to the next step. 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range...
  • Page 162 34000A Series Operation Manual 151 5.14.1.7. Press START/STOP Test key. 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM...
  • Page 163 152 PRODIGIT 5.14.1.8. the UUT’s output voltage drop-out lower than the threshold voltage (V-th setting), and the OPP trip point is between W_Hi and W_Lo limitation, then Right 5 digits LCD display will shows "PASS", otherwise shows "FAIL". 34210A 600V/320A,10KW DC ELECTRONIC LOAD...

  • Page 164: Short Testing

    34000A Series Operation Manual 153 5-15. SHORT testing 5.15.1. SHORT Manual control Example 5.15.1.1. Setting SHORT test, press Short key to the next step. 34210A 600V/320A,10KW DC ELECTRONIC LOAD Range Range LAN USB CP SEQ. GPIB REM RS232 DYN STA Auto 5.15.1.2.
  • Page 165 154 PRODIGIT 5.15.1.6. Short test finish, the UUT’s drop voltage is between V_Hi and V_Lo limitation, then middle 5 digits LCD display will shows "PASS" 34210A 600V/320A,10KW DC ELECTRONIC LOAD LAN USB CP SEQ. Range Range GPIB REM RS232 DYN STA Auto 5.15.1.7.

  • Page 166: The Mppt Algorithm For 34000A Series Dc Load

    34000A series E-LOAD MPPT algorithm The algorithm that will be used for performing MPPT with the 34000A series E-load is a modified version of the Perturbation and Observation (P&O) algorithm, which we will refer to as the Perturbation and Observation for 34000A series load MPPT algorithm.
  • Page 167 OFF) Press Start/Stop to start tracking MPP of UUT The voltage, current and power (MPP) will display on the meter of 34000A series load. Press Start/Stop to stop to tracking the MPP of UUT. Or the record memory is full.

  • Page 168: Battery Discharge Test

    34000A Series Operation Manual 157 5-17. Battery discharge test 34000A Series battery discharge test, a total of seven types: 5.17.1. TYPE 1: When testing loads on of Constant current (CC) mode or Constant Power (CP), When battery voltage is less than UVP (under voltage protect) setting values, The LED is off to indicate Load off status, and displays the total discharge stored energy of the AH as fig 5-16 shows.

  • Page 169: Fig 5-18 Type 4 Battery Discharge Figure

    158 PRODIGIT 5.17.3. TYPE 3: When testing loads on of Constant current (CC) mode or Constant Power (CP), setting discharge Time, when Load on time achieve setting time, this moment load on auto change to load off and Display voltage, setting Timer value range 1 to 99999 sec (27H) (Fig5-15).

  • Page 170: Fig 5-19 Type 5 Battery Discharge Figure

    34000A Series Operation Manual 159 Fig 5-19 TYPE 5 Battery Discharge Figure 5.17.6. CC+CV: Refer to Chapter 5-7 for the operation mode. 5.17.7. CP+CV: Refer to Chapter 5-8 for the operation mode. 5.17.8. Operation：Type 1 to 3 is manual operation or remote operation.
  • Page 171 160 PRODIGIT 5.17.9. REMOTE Command Description: 5.17.9.1. Type 1: Set TYPE 1, and Set CC mode load on and set UVP Value command input “BATT: TEST ON”, Command to start the test, When the battery Voltage less than The UVP Value, load off test end and remoter will shows “OK, XXXXX”, XXXXXThe total...
  • Page 172 34000A Series Operation Manual 161 BATT: CCL1 1.0 BATT: TH1 2.0 BATT: TL1 2.0 BATT: CYCLE1 500 BATT: CCH2 4.0 BATT: CCL2 1.0 BATT: TH1 1.0 BATT: TL1 1.0 BATT: CYCLE2 500 LDOFFV 10.5 BATT: REPEAT 1 BATT: TEST ON 5.17.9.5.
  • Page 173 Instruments Cooperation (NIC) Model PC-2A board provides the interface between the PC-AT and a PRODIGIT MPAL ELECTRONIC LOAD. The appropriate *cib*.obj file is required in each program to properly link the NIC board to C LANGUAGE. and include the <decl.h.> HEADER FILE to C LANGUAGE.
  • Page 174 34000A Series Operation Manual 163 ibwrt( load,"NAME?",5); /* Get the 34000A series load specification */ strset(rdbuf,'\0'); /* Clear rdbuf string buffer */ strset(spec,'\0'); /* Clear spec string buffer */ ibrd(load,spec,20); if (spec[3] == '9') printf("\n 34000A series specification error !");...
  • Page 175 164 PRODIGIT BASICA Example Program LOAD DECL.BAS using BASICA MERGE command. 100 REM You must merge this code with DECL.BAS 105 REM 110 REM Assign a unique identifier to the device "dev5" and store it in variable load%. 125 REM udname$ = "dev5"...
  • Page 176 34000A Series Operation Manual 165 Appendix B 34000A series USB Instruction 1. Install the USB DRIVER select USB\SETUP\PL-2303 Driver Installer.exe...
  • Page 177 166 PRODIGIT 2. After the installation, connect the 34000A series and PC with USB. Then select the item USB to Serial Port (COM3), set the BAUD-RATE and Flow control to 115200bps and Hardware to control 34000A series with COM3.
  • Page 178 34000A Series Operation Manual 167 Appendix C 34000A series LAN Instruction 1. Connecting AC power and the network line to the 34000A series mainframe, connect the other Side of the network line to the HUB. 2. Run the ETM.EXE which bellows the path of the LAN on the CDROM drive, it will show as fig D2-1 if not , please press F5 to search again, or check the first step was succeed or not.
  • Page 179 168 PRODIGIT 5. It will be shown the Setup Device as the following figure if all steps was corrected to be run. 6. Insert the numbers as the following : IP Address: as recommended according to your network Subnet Mask: as recommended according to your network...
  • Page 180 12. Press up/down key to set repeat count of sequence loop. 13. Press ENTER to confirm the sequence edit. Test mode 1. Press Shift + SEQ. key of 34000A series front panel, 2. Press up/down key to select Test Mode. 3. Press 1~9 number to select sequence number 4.
  • Page 181 4. Press Load ON 5. Set the current value as step 1~8 and store to memory state 1~8 6. Press EDIT key of 34000A series mainframe 7. Press up/down key to select Edit Mode 8. Press sequence number 3 to edit the sequence 9.
  • Page 182 34000A Series Operation Manual 171 Testing Waveform...

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