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Prodigit 3260A Series Operation Manual

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3260A Series
High Power LOAD
Operation Manual
S/N: 9003260A02 REV: E

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Summary of Contents for Prodigit 3260A Series

  • Page 1 3260A Series High Power LOAD Operation Manual S/N: 9003260A02 REV: E...
  • Page 2 SJ/T 11363-2006 standard. Note(注释): 1.Prodigit has not fully transitioned to lead-free solder assembly at this moment；However, most of the components used are RoHS compliant. (此刻，Prodigit 并非完全过渡到无铅焊料组装；但是大部份的元器件一至于RoHS的规定。) 2.
  • 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

    DECLARATION OF CONFORMITY PRODIGIT ELECTRONICS CO., LTD Company Name: 8/F, No.88, Baojhong Rd., Sindian City, Taipei County,Taiwan, R.O.C. Address: Declares under sole responsibility that the product as originally delivered DC/AC Electronic Loads Product Names: 326XA、3261XA、3302C、3305C、3300C Model Numbers: (And other customized products based upon the above)

  • Page 5: Table Of Contents

    3-3 AUTO SEQUENCE testing function description ......... 21 3-4 Setting of Freq. & Selection of Bank & Sync..........24 3-5 Initial setting parameter of 3260A Series High Power Electronic Load ..25 3-6 Consideration of Load Input Connector and Connecting Lead Wire ... 29 3.7 Rough Tuning, Fine Tuning &...
  • Page 6 FIG.1-3 CHARACTERISTICS OF C.R. MODE ......................2 FIG.2-1 SET OF SWITCH.............................9 FIG.2-2 AC LINE RECEPTACLE..........................10 FIG.2-3 3260A SERIES HIGH POWER ELECTRONIC LOAD FRONT PANEL KEY SWITCH ....11 FIG.2-4 DIAGRAM OF REMOTE CONTROL PORT ....................12 FIG.3-1 FRONT PANEL OF 3260A SERIES HIGH POWER ELECTRONIC LOAD ........13 FIG.3-2 TYPICAL WAY FOR CONNECTING 3260A SERIES HIGH POWER ELECTRONIC LOAD ..18...

  • Page 7: Chapter 1 Introduction

    42 A 126 A 12600 W The work mode of 3260A Series High Power Electronic Load includes C.C, Linear C.C., C.R. C.C. Mode During C.C. mode, the load current input into 3260A Series High Power Electronic Load depends on the current setting regardless of the input voltage, e.g., the current setting...

  • Page 8: Fig.1-2 Characteristics Of C.c. Mode

    Fig.1-2 Characteristics of C.C. Mode Linear C.C. Mode During Linear C.C. mode, the load current input into 3260A Series High Power Electronic Load depends on the current setting regardless of the input voltage, e.g., the current setting remains unchanged. Please refer to Fig.1-9. The load input current signal will follow input voltage signal, That is useful for step wave-form and square wave-form device.
  • Page 9 PRODIGIT 3260A Series Operation Manual 3 The load setting of 3260A Series High Power Electronic Load and the load condition setting of the front panel can be made through the front panel manual operation, GPIB command. The load voltage and current can be transmitted to the computer through GPIB bus. For...

  • Page 10: Characteristics Of 3260A Series High Power Electronic Load

    4 PRODIGIT 1-2 Characteristics of 3260A Series High Power Electronic Load 1.2.1 Interface function of full GPIB control, including setting of load condition and read- back of Vmeter and Ameter. 1.2.2 Dual High Accuracy/High Resolution 4 1/2 digit Vmeter and Ameter.

  • Page 11: Specification

    PRODIGIT 3260A Series Operation Manual 5 1-5 Specification MODEL 3261A 32611A 32612A 32613A 32614A 32615A LOAD INPUT RATINGS Power (VA) 1800 VA 3600 VA 5400 VA 7200 VA 9000 VA 10800 VA Current(Ampere) 18 Arms 36 Arms 54 Arms 72 Arms...
  • Page 12 6 PRODIGIT MODEL 3260A 32601A 32616A LOAD INPUT RATINGS Power (VA) 1200 VA 2400 VA 12600VA Current(Ampere) 12 Arms 24 Arms 126Arms Voltage(Volt) 50~300 Vrms 50~300 Vrms 60~300Vrms PROTECTION： Over Power Protection ≒ 1260 VA ≒ 2520 VA ≒ 13230 VA Over Current Protection ≒...

  • Page 13: Table 1-1 3260A Series Specification

    PRODIGIT 3260A Series Operation Manual 7 LINE 100V/115V±10﹪ 200V/230V±10﹪ AC INPUT FREQUENCY 50/60 HZ FUSE 2A/250V (5*20mm) 1A/250V (5*20mm) EACH UNIT MAX. POWER CONSUMPTION 100 W DIMENSIONS (W*H*D) 440 mm*177 mm*445 mm / EA WEIGHT NET : 23.6 Kg / EA...

  • Page 14: System Block Diagram

    8 PRODIGIT 1-6 System Block Diagram...

  • Page 15: Chapter 2 Installation

    If the appropriated cord was not included, please contact your nearest Prodigit sales office to obtain the correct cord. Refer to " check line voltage " to check the line voltage selection and fuse type.

  • Page 16: Grounding Requirements

    2-4 Adjust the feet The 3260A Series High Power Electronic Load is equipped with feet and tilt stands installed and is ready for used as a bench instrument. The feet provide a good viewing angle for bench-top use.

  • Page 17: Gpib Connection

    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 3260A Series High Power Electronic Load mainframe, the GPIB connector is located on the rear panel of 3260A Series High Power Electronic Load mainframe.

  • Page 18: Remote Control Port

    The D-sub 9 pin connector on the rear panel connects the 3260A Series High Power Electronic Load to the PRODIGIT mode 9931 remote controller and to replace the RECALL option key 1 to 5 on the front panel of 3260A Series High Power Electronic Load. 9 Pin to 9 Pin 1.5M Cable...

  • Page 19: Chapter 3 Manual Operation

    3260A Series Operation Manual 13 Chapter 3 Manual Operation This Chapter deals with the front panel manual operation of 3260A Series High Power Electronic Load. With regard to calibration procedures, please refer to 3260A Series High Power Load Calibration Manual. With regard to the control of GPIB/RS-232C control, please refer to Chapter 4 GPIB/RS-232C Remote Operation.
  • Page 20 3.1.3 MODE Key and LED indicator of CC, LIN, CR On the 3260A Series High Power Electronic Load, there are two working modes which can be selected by MODE KEY with the sequence of C.C., Linear C.C. and C.R., then switching can be made in such a sequence. However, LED indicator of CC, LIN, CR will display the working mode selected.
  • Page 21 PRODIGIT 3260A Series Operation Manual 15 3.1.6 Lower 4-1/2 Digit Monitor 3.1.6.1 Under Preset OFF condition: This monitor will be a 4 1/2 digit ammeter to display the load current actually flowing into the electronic load. 3.1.6.2 Under Preset ON conditioin: This monitor can display the set value of the front panel manual operation or the set value upon remote control.
  • Page 22 Load ON/OFF Key. Under Load OFF condition and upon Load ON, the electronic load of 3260A series High Power will return to the load condition set originally and Load LED is ON indicating that the electronic load is at present under Load ON condition and is ready at any time to be loaded with the load current of the AC/DC input power source.
  • Page 23 Please refer to 3.1.13.2 for upper and lower limit adjustment. 3.1.12 SENSE ON/OFF Key and LED Indicator The voltmeter and internal trigger circuit of 3260A Series High Power Electronic Load can be controlled by this Key thus determining whether or not the input to the voltmeter is made from the AC input end (OFF) or Vsense end (ON).

  • Page 24: Fig.3-2 Typical Way For Connecting 3260A Series High Power Electronic Load

    When Load Input Connector is used, be sure that the rated specification of the voltage and current of the 3260A Series High Power Electronic Load shall not be exceeded. Upon wiring, please refer to 3.4 lest the internal circuit and connector should be damaged.

  • Page 25: Table 3-1 3260A Series High Power Electronic Load Imonitor Specification

    OFF, the analog signal output from Imonitor is in direct proportion with the load current flowing through the load current. Please refer to the relationship between the analog voltage output signal and load current of 3260A Series High Power Electronic Load listed in Table 3-1. The full scale of Imonitor is 10V.

  • Page 26: Store / Recall Operation

    20 PRODIGIT STORE / RECALL operation The six function keys on the front panel of 3260A Series High Power Load are designed for high testing throughput purpose. There are five operation states or testing steps can be store in the non-volatile memory of 3260A series electronic load, each state can save or recall the load status and level for four 3260A series Electronic load simultaneously.

  • Page 27: Auto Sequence Testing Function Description

    Each test step has t1 (test time) and t2 (delay time), the unit is 100mS, the range is 0.1S - 9.9S in 100mS resolution. 3260A series load mainframe will check each module GO/NG at the end of t1 (test time), the next step will be started after duration t2 (delay time).
  • Page 28 Test mode of Auto-sequence function is proceed by press START key. The TEST MODE flow chart is described below: 3.3.2.1 After press START key, the 3260A series load controls all the module within the mainframe to recall correspond memory which had been stored in Auto-sequence (n1~n9) memory.

  • Page 29: Fig.3-5 Test Mode Operation Flow-Chart

    PRODIGIT 3260A Series Operation Manual 23 1.Press S3+S4 key, and S3 and S4 LED are ON S3+S4 Show n1-n9 Initial = n1 2.Show AUTO SEQ. No.1-No.9, Press Up/Down key to set n1-n9 3.Press Start key to Start Mode Start Mode Press Start key 1.To recall correspond memory which had been stored in n1-n9 memory...

  • Page 30: Setting Of Freq. & Selection Of Bank & Sync

    3-4 Setting of Freq. & Selection of Bank & Sync. 3.4.1 Frequency Setting: The range for setting the frequency of 3260A Series High Power AC/DC Electronic Load is from DC , 0.1 ～ 400.0 Hz. The authorization for setting the frequency of 3260A Series High Power AC/DC Electronic Load is the frequency output by U.U.T.

  • Page 31: Initial Setting Parameter Of 3260A Series High Power Electronic Load

    In such a case, the front panel monitor will display model number and edition repeatedly and initialize the setting parameter of 3260A Series High Power Electronic Load as shown in Tables 3-3 ～ 3-10 until the...

  • Page 32: Table 3-3 3260A Initial Condition Setting

    26 PRODIGIT button is released. Description Condition/Value Description Condition/Value MODE C.F. √2 LOAD FREQ FREQ = 60.0Hz LEVEL BANK = 0 SENSE SYNC = OFF PRES CC LEVEL A 0.000A WATT CC LEVEL B 0.000A LIMIT = 400.0V LIN LEVEL A 0.000A...

  • Page 33: Table 3-6 32612A Initial Condition Setting

    PRODIGIT 3260A Series Operation Manual 27 Description Condition/Value Description Condition/Value MODE C.F. √2 LOAD FREQ FREQ = 60.0Hz LEVEL BANK = 0 SENSE SYNC = OFF PRES CC LEVEL A 0.000A WATT CC LEVEL B 0.000A LIMIT = 400.0V LIN LEVEL A 0.000A...

  • Page 34: Table 3-9 32615A Initial Condition Setting

    28 PRODIGIT Description Condition/Value Description Condition/Value MODE C.F. √2 LOAD FREQ FREQ = 60.0Hz LEVEL BANK = 0 SENSE SYNC = OFF PRES CC LEVEL A 00.00A WATT CC LEVEL B 00.00A LIMIT = 400.0V LIN LEVEL A 00.00A LIMIT = 120.00A...

  • Page 35: Consideration Of Load Input Connector And Connecting Lead Wire

    PRODIGIT 3260A Series Operation Manual 29 Consideration of Load Input Connector and Connecting Lead Wire Load Input Connector used for 3260A Series High Power Electronic Load is the 5-purpose input connector of which the usage is as follows: 3.6.1 Plug Connector: This is the most common way for connecting the equipment to be measured with 3260A Series High Power Electronic Load.

  • Page 36: Rough Tuning, Fine Tuning & Increment & Decrement Adjustment Of Load Current

    3.7 Rough Tuning, Fine Tuning & Increment & Decrement Adjustment of Load Current. The maximum load current of 3260A Series High Power Electronic Load can be adjusted to 12.000A, 18.000A, 36.000A, 54.000A, 72.000A, 108.000A, 126.00A, and 80.00A respectively. The relationship between the adjustment variation of the load current or resolution and buttons is as shown in Table 3-11.

  • Page 37: Table 3-11 3260A Series Rough Tuning, Fine Tuning & Increment & Decrement Adjustment Of Load Current

    CURRENT RANGE 126.00 A METER RESOLUTION 0.014 A COURSE/FINE LOAD CURRENT ADJUSTMENT KEY KEY’S STEP RESOLUTION 157.5 mA 15.75 mA 315 mA 31.5 mA Table 3-11 3260A Series Rough Tuning, Fine Tuning & Increment & Decrement Adjustment of Load Current...

  • Page 38: Imonitor (Output)

    3260A electronic load and Imonitor BNC output end is 500V. Also, the reference potential at the negative end of BNC is the same as the GPIB earth potential of 3260A Series High Power Electronic Load. As the isolated insulation amplifier inside the 3260A Series High...

  • Page 39: Operation Flow Chart Of 3260A Series Electronic Load

    PRODIGIT 3260A Series Operation Manual 33 3-9 Operation Flow Chart of 3260A Series Electronic Load The typical load and procedures for setting the condition of 3260A Series High Power Electronic Load are shown in Fig.3-4. S T A R T...

  • Page 40: Protection Features

    34 PRODIGIT 3-10 Protection Features There are four protection functions for the 3260A Series High Power Electronic Load, namely, Over-Voltage, Over-Current, Over-Power and Over-Temperature. When electronic load exceeds the normal work area range, one of the above 4 functions will come to effect. When any one protection comes to effect, load will be changed to OFF to protect electronic load thus preventing damage resulting from abnormal operation range.

  • Page 41: Table 3-13 3260A Series Over Current Protection Setting Value

    Table 3-13 3260A Series over current protection setting value 3.10.3 Over Power The protection point of over power protection (O.P.P.) is preset in the 3260A series High Power electronic load. The setting values of over power protection are shown table 3-14. When O.P.P. occurs, the 4 1/2 digit monitor on the lower side of the front panel of 3260A series High Power electronic load will display〝oPP〞with flickering...

  • Page 42: Load On Voltage Adjustment

    36 PRODIGIT 3-11 Load ON voltage adjustment The factory set " Load ON " voltage is 2 volt, the 3260A series Electronic load module starts to sink current from power supply until the input voltage of 3260A series Electronic Load module over the "Load ON"...

  • Page 43: Chapter 4 Gpib/Rs-232C Operation

    Chapter 4 GPIB/RS-232C Operation 4-1 Introduction The rear panel GPIB/RS-232C interface of 3260A Series is designed to connect PC ( Personal Computer ) or NOTEBOOK PC with GPIB/RS-232C interface, the NOTEBOOK PC acts as a remote controller of 3260A series Electronic Load.

  • Page 44: 3260A Series Gpib/Rs-232C Command List

    38 PRODIGIT 4-3 3260A Series GPIB/RS-232C COMMAND LIST Setting Command Function Command Format SET AUTO FREQUENCY AFREQ{SP}{0|1|OFF|ON}{；|NL} DETECT ON/OFF SET SYNC ON/OFF SYNC{SP}{0|1|OFF|ON}{；|NL} SET SENC ON/OFF SENS{SP}{0|1|OFF|ON}{；|NL} SET WATT ON/OFF WATT{SP}{0|1|OFF|ON}{；|NL} SET BANK BANK{SP}{d}{；|NL} d：0 ～ 10 SET WAVE WAVE{SP}{m}{；|NL}} m：0 ～...

  • Page 45: Table 4-2 Gpib/Rs-232C Query Command Summary

    PRODIGIT 3260A Series Operation Manual 39 Query Command Function Command Syntax ECHO QUERY AUTO FREQUENCY AFREQ？{；|NL} 1：ON, 0：OFF DETECT ON/OFF QUERY SYNC SYNC？{；|NL} 1：ON, 0：OFF QUERY SENS ON/OFF SENS？{；|NL} 1：ON, 0：OFF QUERY WATT ON/OFF WATT？{；|NL} 1：ON, 0：OFF QUERY BANK BANK？{；|NL} 0 ～...

  • Page 46: The Description Of Abbreviation

    Terminator：You have to send the program line terminator character after send the GPIB/RS-232C command, the available command terminator characters which can be accepted in 3260A Series High Power Load is listed in Table 4-3. LF WITH EOI CR, LF...

  • Page 47: Gpib/Rs-232C Command Description

    Purpose： ： ： ： The load current setting in Constant Current mode. Command syntax： ： ： ： CURR：{LOW|HIGH|A|B}{SP}{NR2}{NL} Description： ： ： ： This command is used to set the load current LEVEL A/B of 3260A series Electronic Load. Note: 1. The load current data must include decimal point, otherwise this command is unable to execute.
  • Page 48 Purpose： ： ： ： The load linear current setting in Constant Current mode. Command syntax： ： ： ： LIN：{LOW|HIGH|A|B}{SP}{NR2}{NL} Description： ： ： ： This command is used to set the load current LEVEL A/B of 3260A series Electronic Load. Note: 1.
  • Page 49 LOAD. Command syntax： ： ： ： STORE{SP}{1|2|3|4|5}{NL} Description： ： ： ： 5 different states with 3260A series electronic load's status and load current into the non-volatile memory in the 3260A series electronic load. Note: The new load level and load status can overcome the load level and status if STORE new state number, because the memory location is the same for same STORE state number.
  • Page 50 44 PRODIGIT RECALL Purpose： ： ： ： Recall the state of load level and status which is stored by GPIB STORE command. Command syntax： ： ： ： RECALL{SP}{1|2|3|4|5}{NL} Description： ： ： ： This command is used to recall the non-volatile memory state which is store into the memory by GPIB store command, up to 5 states can be recalled.

  • Page 51: Table 4-4 Waveform Information

    PRODIGIT 3260A Series Operation Manual 45 BANK Purpose： ： ： ： To set waveform bank. Command syntax： ： ： ： BANK{SP}{d}{；|NL} d：0～10 Description： ： ： ： This command is to set the waveform bank desired to be selected. 1. waveform bank 0～2 are sine wave.
  • Page 52 2. The minimum effective digit of the value is the fifth digit after the decimal point. 3. If the value designated exceeds the specification of said electronic load, the 3260A Series High Power Load will send out the full scale current value of said electronic load specification.
  • Page 53 PRODIGIT 3260A Series Operation Manual 47 Purpose： ： ： ： To set the lower limit value of threshold current. Command syntax： ： ： ： IL{SP}{NR2}{；|NL] Description： ： ： ： This command is to set the lower limit value of threshold current. When load sink current is lower than this lower limit value, NG indicating light will come on to indicate 〝NO GOOD〞.
  • Page 54 Command syntax： ： ： ： AFREQ{SP}{0|1|OFF|ON}{；|NL} Description: 1.Enable auto frequency detect function (AFREQ ON)：3260A series electronic load will auto frequency external signal to control load current and voltage synchronous. At this time if place “FREQ” command, it will be ineffective.
  • Page 55 PRODIGIT 3260A Series Operation Manual 49 LOCAL Purpose： ： ： ： Return to local. Command syntax： ： ： ： LOCAL{；|NL} Description： ： ： ： Let control procedure return to the mode of local operation.
  • Page 56 Command syntax： ： ： ： CURR:{A|B}?{NL} Description： ： ： ： CURR:A? ; Return the LEVEL A load current setting of 3260A series electronic load. CURR:B? ; Return the LEVEL B load current setting of 3260A series electronic load. The returned data format is shown in Table 4-2, the engineering unit is〝A〞.
  • Page 57 MODE? ; Return the presently operating mode status,〝0〞indicates CC MODE, 〝1〞indicates CR MODE,〝2〞indicates LIN MODE. NAME Purpose： ： ： ： 3260A series Electronic Load model number query command. Command syntax： ： ： ： NAME?{NL} Description： ： ： ： NAME? return the activate Electronic Load’s model number, ”3260A”, “3261”, ”32611”, “32612”...
  • Page 58 52 PRODIGIT MEAS： ： ： ： VLOT Purpose： ： ： ： The reading of 4 1/2 digit voltage meter read back query command. Command syntax： ： ： ： MEAS：VOLT?{NL} Description： ： ： ： MEAS:VOLT? ; Return the presently 4 1/2 digital voltage meter reading. The returned data format is shown in Table 4-2, the engineering unit is〝V〞.
  • Page 59 PRODIGIT 3260A Series Operation Manual 53 BANK Purpose： ： ： ： To read the set value of BANK Command syntax： ： ： ： BANK?{；|NL} Description： ： ： ： BANK? ; Read back the set value of BANK. 0～10 denotes waveform bank of level 0 ～level 10.It’s only use C.C.
  • Page 60 54 PRODIGIT Purpose： ： ： ： To read the set value of IH. Command syntax： ： ： ： IH?{；|NL} Description： ： ： ： IH? ; Read back the upper limit set value of threshold current, unit is (A). Purpose： ： ： ：...
  • Page 61 PRODIGIT 3260A Series Operation Manual 55 MEAS： ： ： ： POW Purpose： ： ： ： To read the value of Watt meter. Command syntax： ： ： ： MEAS：POW?{；|NL} Description： ： ： ： MEAS：POW? ; Read back the value of 4 digit of the Watt meter, unit is (W).

  • Page 62: Chapter 5 Application

    56 PRODIGIT Chapter 5 Application Some general application examples for 3260A series High Power electronic load are given in this chapter. 5-1 CC Operation Mode Application CC Operation mode is very suitable for load regulation, cross regulation and output voltage adjust tests of the power supplier and for battery discharge testing and service life cycle testing.

  • Page 63: Cr Operation Mode Application

    PRODIGIT 3260A Series Operation Manual 57 5-2 CR Operation Mode Application 5.2.1 Voltage Source or Current Source Testing + + + + CURRENT CURRENT CURRENT CURRENT SOURCE SOURCE SOURCE SOURCE VOLTAGE VOLTAGE VOLTAGE VOLTAGE SOURCE SOURCE SOURCE SOURCE - - - -...

  • Page 64: Lin Operation Mode Application

    58 PRODIGIT 5-3 LIN Operation Mode Application 5.3.1 Voltage Source Testing 5.3.2 Power Supply Load Regulation Testing - - - - DC DC DC DC INPUT INPUT INPUT INPUT 5.3.3 Battery Discharge Testing V V V V LOAD CURRENT LOAD CURRENT...

  • Page 65: Appendix I 3260A R1.00 Edition Wave Form Data Bank

    PRODIGIT 3260A Series Operation Manual I - 1 Appendix I 3260A r1.00 Edition Wave Form Data Bank 3260A Series High Power electronic load module provides built-in 11 sets totaling 55 banks which are described as follows: BANK sine wave √2 C.F.= 2.0...
  • Page 66 Appendix I - 2 PRODIGIT C.F. value of sine wave consists of 2.0～3.5 and P.F. value is -0.85 ~ -0.30 totaling 15 banks of which the definition is described in figure below:...
  • Page 67 PRODIGIT 3260A Series Operation Manual I - C.F. value of sine wave consists of 2.0～3.5 and P.F. value is 0.85 ~ 0.30 totaling 15 banks of which the definition is described in figure below:...
  • Page 68 Appendix I - 4 PRODIGIT C.F. Value of square wave consists of 1.0～1.4 totaling 5 banks of which the definition described in figure below: Peak voltage Wave Form √2 Zero Crossing Current Wave Form when C.F. = 1.0 0.707Peak Zero Crossing 3.4Peak...

  • Page 69: Appendix Ii Setting Of Ac Or Dc Electronic Load

    Appendix II Setting of AC or DC Electronic Load 3260A Series High Power electronic load is the full function electronic load for AC and DC. The setting of electronic load for AC or DC depends on the output frequency of U.U.T. The setting is...

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