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PRODIGIT

3260A Series Operation Manual 37

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.
This feature  can  be  used  as  an  automatic load/cross load  regulation  and  centering  voltage
testing  for  a  switching  power  supply  or  an  rechargeable  battery  charge/discharge
characteristic testing. The function capability of rear panel GPIB/RS-232C interface not only
can  set  the  load  level  and  load  status,  but  also  can  read  back  the  load  voltage  and  load
current.

4-2 The summary of RS-232 interface and command

The following RS-232 commands are same as GPIB commands. The RS-232 protocol in
3302C mainframe is listing below:
Baud-rate

：

9600

Parity

：

none

Data bit

：

8 bits

Stop bit

：

1 bit

command delay time

：

20 mSec.

The connection of rear panel RS-232 interface is shown below, The Figure 4-1.a is
connector wire diagram of rear panel RS-232 interface, User can use the general RS-232
cable as Figure 4-1.b.

TxD

RxD

RTS

CTS

TxD

RxD

RTS

CTS

Figure 4-1.a

TxD
RxD
RTS
CTS
DSR
GND
DCD
DTR

2
3
4
5
6
7
8

Figure 4-1.b

Inside of 3300C Mainframe

RS232C port on

3300C Mainframe

RS232C port on PC

9

Fig 4-1 Rs-232 INTERFACE DIAGRAM

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Содержание 32601A

Страница 1: ...3260A Series High Power LOAD Operation Manual S N 9003260A02 REV E...

Страница 2: ...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 concentration of the hazardous subs...

Страница 3: ...ck hazard that could result in personal injury FUSES Only fuses with the required rated current voltage and specified type normal blow time delay etc should be used Do not use repaired Fuses or short...

Страница 4: ...sed with respect to CE marking according to the Low Voltage Directive 73 23 EEC 93 68 EEC and EMC Directive 89 336 EEC 92 31 EEC 93 68 EEC and Found to comply with the essential requirements of the Di...

Страница 5: ...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 Fin...

Страница 6: ...SPECIFICATION 19 TABLE 3 2 3260A BUILT IN WAVE FORM DATA BANK 24 TABLE 3 3 3260A INITIAL CONDITION SETTING 26 TABLE 3 4 3261A INITIAL CONDITION SETTING 26 TABLE 3 5 32611A INITIAL CONDITION SETTING 26...

Страница 7: ...1A 300 V 100 V 50 V 6 A 18 A 1800 W 32611A 300 V 100 V 50 V 12 A 36 A 3600 W 32612A 300 V 100 V 50 V 18 A 54 A 5400 W 32613A CC 300 V 100 V 50 V 24 A 72 A 7200 W 32613A LIN 300 V 100 V 60 V 24 A 72 A...

Страница 8: ...de output signal so long as the amplitude of the input signal exceeds an adjustable reference voltage applied to the peak detector The reference voltage may be changed to change the range of input vol...

Страница 9: ...ower 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...

Страница 10: ...ic voltage sensing ability 1 2 7 Protection functions include Over Voltage Over Current Over Power and Over Temperature 1 2 8 Software calibration ability 1 2 9 Cooling fan control device with revolut...

Страница 11: ...3 332K 1 667 6 668 26 668K 1 111 4 444 17 776K 0 833 3 333 13 33K 0 666 2 666 10 666K 0 556 2 224 8 888K Resolution 0 019 0 076 mS 0 037 0 148 mS 0 056 0 224 mS 0 075 0 300 mS 0 0937 0 375 mS 0 113 0...

Страница 12: ...0 013 0 052 mS 0 025 0 1 mS 0 5252S 0 1313mS Accuracy 0 5 of setting 2 of range 0 5 of setting range 50 60Hz CR MODE Under 5 F S Current 2 of setting range Range 2 3 5 1 5 1 9 3 0 3 4 CREST FACTOR CCM...

Страница 13: ...al 7 LINE 100V 115V 10 200V 230V 10 FREQUENCY 50 60 HZ AC INPUT FUSE 2A 250V 5 20mm 1A 250V 5 20mm MAX POWER CONSUMPTION 100 W DIMENSIONS W H D 440 mm 177 mm 445 mm EA EACH UNIT WEIGHT NET 23 6 Kg EA...

Страница 14: ...8 PRODIGIT 1 6 System Block Diagram...

Страница 15: ...nput as indicated on the label on the rear panel Make sure that the factory check mark correspond to your nominal line voltage Skip this procedure if the label is corrected marked 2 2 1 With the 3260A...

Страница 16: ...dy for used as a bench instrument The feet provide a good viewing angle for bench top use 2 5 Rack mount The 3260A Series High Power Electronic Load is designed to permit mounted in a standard 19 inch...

Страница 17: ...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 Pow...

Страница 18: ...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 1 2 3 4 5 STORE 1 2 3 4 5 6 7 8 9 NC NC NC NC D sub 9 Pin INSTRUM...

Страница 19: ...eries 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 t...

Страница 20: ...1 2 Digit Monitor is a multi function monitor Its functions are described as follows 3 1 5 1 Under general conditions This monitor will be a 4 1 2 digit voltmeter to display the voltage at the load in...

Страница 21: ...or will display 0 10 3 1 6 4 3 Under sync selection function monitor will display ON OFF 3 1 7 PRES ON OFF Key and LED Monitor Depressing PRES Key will be ON further depressing will be OFF further dep...

Страница 22: ...oximately 0V after turning off the output If you do not the internal bias power supply stays off and the specified current may not be supplied 3 1 9 Watt ON OFF Key and LED Indicator Depressing Watt K...

Страница 23: ...FF condition 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 Lo...

Страница 24: ...n ON is external Sync OFF is internal Sync 3 1 16 AC DC Load Input Connector When Load Input Connector is used be sure that the rated specification of the voltage and current of the 3260A Series High...

Страница 25: ...output flowing to the negative end via the oscillograph due to different potential On the other hand When the positive and negative power source is measured and the two load current wave forms are ob...

Страница 26: ...thin this 10 seconds the STORE LED annunciator will be OFF it indicated the STORE process is not available now please repeat the STORE procedure for a new STORE operation 2 After press the STORE key t...

Страница 27: ...function is entered by press S3 S4 key 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...

Страница 28: ...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 sequence function is proce...

Страница 29: ...stored 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 L 1 2 3 Yes 4 1 If no than Step 1 continue another step 4 2 If Yes than if all the test i...

Страница 30: ...lt in sets totaling 55 wave form information The content of Bank is as shown in Table 3 2 Please refer to Appendix for details Note When Frequency is set to DC the wave form information shall be fixed...

Страница 31: ...d The initial setting parameters of 3260A Series High Power Electronic Load are described from Table 3 3 to 3 11 respectively 3 5 1 Last Setting All 3260A Series High Power Electronic Loads have the f...

Страница 32: ...F 2 LOAD OFF FREQ FREQ 60 0Hz LEVEL A BANK 0 SENSE OFF SYNC OFF PRES OFF CC LEVEL A 0 000A WATT OFF CC LEVEL B 0 000A LIMIT VLIMIT 400 0V LIN LEVEL A 0 000A ALIMIT 20 00A LIN LEVEL B 0 000A WLIMIT 20...

Страница 33: ...CC C F 2 LOAD OFF FREQ FREQ 60 0Hz LEVEL A BANK 0 SENSE OFF SYNC OFF PRES OFF CC LEVEL A 0 000A WATT OFF CC LEVEL B 0 000A LIMIT VLIMIT 400 0V LIN LEVEL A 0 000A ALIMIT 80 00A LIN LEVEL B 0 000A WLIMI...

Страница 34: ...WLIMIT 12000 W CR LEVEL A 8888 VALIMIT 12000 W CR LEVEL B 8888 Table 3 9 32615A initial Condition Setting Description Condition Value Description Condition Value MODE CC C F 2 LOAD OFF FREQ FREQ 60 0H...

Страница 35: ...he most simple way to insert the connecting wire into the holes on the metal portion of the input connector The maximum gauge of the connecting wire is AWG 14 3 6 4 Plug Connector and Hook Type Termin...

Страница 36: ...mpleted in the shortest period of time Unless max or min value has been reached or depressing has been interrupted 3260A Range I Range II FULL SCALE LOAD CURRENT 6 A 12 A CURRENT RANGE 12 000 A METER...

Страница 37: ...ALE LOAD CURRENT 54 A 108 A CURRENT RANGE 108 000 A METER RESOLUTION 0 012 A COURSE FINE LOAD CURRENT ADJUSTMENT KEY KEY S STEP RESOLUTION 135 mA 13 5 mA 270 mA 27 mA 32616A Range I Range II FULL SCAL...

Страница 38: ...onic Load can provide a complete and convenient testing solution It can not only solve the problem on voltage and current during testing But also the problem of earth phase connection when one oscillo...

Страница 39: ...A B Set Current Freq NO Last setting Freq W AVE Last wave form 3 5 3 0 2 5 2 2 0 YES NO NO NO NO NO NO Set Freq Set Bank Set Sync YES Pres Freq Pres Freq Pres Freq Pres Freq CR A Set CR m ode Level S...

Страница 40: ...3 12 When O V P occurs the 4 1 2 digit monitor on the upper side of the front panel of 3260A series High Power electronic load will display oVP with flickering to indicate Under Protection Once the o...

Страница 41: ...l O P P 3260A 1260 VA 32601A 2520 VA 3261A 1890 VA 32611A 3780 VA 32612A 5670 VA 32613A 7560 VA 32614A 9450 VA 32615A 11340 VA 32616A 13230 VA Table 3 14 3260A Series over power protection setting val...

Страница 42: ...sition Maximum load ON voltage then connect the AC power source 50Hz or 60Hz to the AC Load input of 3260A series module adjust the AC output voltage to the required Load ON voltage the voltage of AC...

Страница 43: ...rface not only can set the load level and load status but also can read back the load voltage and load current 4 2 The summary of RS 232 interface and command The following RS 232 commands are same as...

Страница 44: ...ATT LOW LIMIT WL SP NR2 NL SET WATT HIGH LIMIT WH SP NR2 NL SET VA LOW LIMIT VAL SP NR2 NL SET VA HIGH LIMIT VAH SP NR2 NL SET CURRENT CURR LOW HIGH A B SP NR2 NL NR2 SET RESISTANCE RES LOW HIGH A B S...

Страница 45: ...L QUERY VA LOW LIMIT VAL NL QUERY VA HIGH LIMIT VAH NL QUER POWER METER W MEAS POW NL QUERY VA METER MEAS VA NL QUERY No Good INDICATER NG NL 0 OFF 1 ON QUERY CURRENT CURR LOW HIGH A B NL QUERY RESIST...

Страница 46: ...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 RS 232C command the available comm...

Страница 47: ...r the maximum specification at programmed range of 3260A series load the full scale current will be sent to the load module 4 Engineering unit for load current is Amps For Example CURR A 1 8 Set level...

Страница 48: ...the programming loads current level over the maximum specification at programmed range of 3260A series load the full scale current will be sent to the load module 4 Engineering unit for load current...

Страница 49: ...MODE CR set the presently operating mode to Constant Resistance mode MODE 1 set the presently operating mode to Constant Resistance mode STORE Purpose STORE the load level and load status into the non...

Страница 50: ...of the input connector thus generating synchronous signal through the internal zero crossing circuit and isolated circuit For Example a SYNC ON To set external synchronization b SYNC OFF To set intern...

Страница 51: ...2 3 0 3 1 3 2 3 3 3 4 C F 2 0 3 P F 0 85 P F 0 80 P F 0 75 P F 0 70 P F 0 65 C F 2 5 4 P F 0 70 P F 0 65 P F 0 60 P F 0 50 P F 0 40 C F 3 5 5 P F 0 50 P F 0 45 P F 0 40 P F 0 35 P F 0 30 C F 2 0 6 P...

Страница 52: ...1 400 0 Hz 5 unit is Hz For Example a FREQ 50 0 To set frequency is 50 0Hz b FREQ 60 0 To set frequency is 60 0Hz c FREQ 0 To set frequency is 0Hz that is to set DC VL Purpose To set the lower limit...

Страница 53: ...light will come on to indicate NO GOOD For Example IH 10 0 To set the upper limit value of threshold current is 10 0 A WL Purpose To set the lower limit value of threshold power W Command syntax WL SP...

Страница 54: ...reshold power VA NG indicating light will come on to indicate NO GOOD For Example VAH 250 0 To set the upper limit value of threshold power VA is 250 0 VA AFREQ Purpose To set auto frequency detect fu...

Страница 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...

Страница 56: ...e setting of 3260A series electronic load The returned data format is shown in Table 4 2 the engineering unit is OHM LIN Purpose The Linear Current mode s level A or B load current setting query comma...

Страница 57: ...return the activate Electronic Load s model number 3260A 3261 32611 32612 32613 and 32615 indicate the activate Electronic Load module is 3260A 3261A 32611A 32612A 32613A or 32615A Electronic load re...

Страница 58: ...Return the presently 4 1 2 digital current meter reading The returned data format is shown in Table 4 2 the engineering unit is A SYNC Purpose To read the setting condition of SYNC Command syntax SYN...

Страница 59: ...5 It s only use C C mode FREQ Purpose To read the set frequency of FREQ Command syntax FREQ NL Description FREQ Read back the set frequency of FREQ unit is Hz VL Purpose To read the set value of VL C...

Страница 60: ...the upper limit set value of threshold power unit is W VAL Purpose To read the set value of VAL Command syntax VAL NL Description VAL Read back the lower limit set value of threshold power unit is VA...

Страница 61: ...the value of 4 digit of the Watt meter unit is W MEAS VA Purpose To read the value of VAmeter Command syntax MEAS VA NL Description MEAS VA Read back the value of 4 digit of VAmeter unit is VA AFREQ...

Страница 62: ...Testing VOLTAGE VOLTAGE VOLTAGE VOLTAGE SOURCE SOURCE SOURCE SOURCE ELECTRONIC LOAD ELECTRONIC LOAD ELECTRONIC LOAD ELECTRONIC LOAD CC MODE CC MODE CC MODE CC MODE VOLTAGE VOLTAGE VOLTAGE VOLTAGE SOU...

Страница 63: ...CR MODE CR MODE ELECTRONIC ELECTRONIC ELECTRONIC ELECTRONIC LOLAD LOLAD LOLAD LOLAD CR MODE CR MODE CR MODE CR MODE VOLTAGE VOLTAGE VOLTAGE VOLTAGE SOURCE SOURCE SOURCE SOURCE 5 2 2 Power Resister Sim...

Страница 64: ...Supply Load Regulation Testing DC DC DC DC INPUT INPUT INPUT INPUT 5 3 3 Battery Discharge Testing V V V V I I I I LOAD CURRENT LOAD CURRENT LOAD CURRENT LOAD CURRENT LOAD CURRENT LOAD CURRENT LOAD C...

Страница 65: ...C F 2 5 4 P F 0 70 P F 0 65 P F 0 60 P F 0 50 P F 0 40 C F 3 5 5 P F 0 50 P F 0 45 P F 0 40 P F 0 35 P F 0 30 C F 2 0 6 P F 0 85 P F 0 80 P F 0 75 P F 0 70 P F 0 65 C F 2 5 7 P F 0 70 P F 0 65 P F 0 6...

Страница 66: ...Appendix I 2 PRODIGIT 1 2 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...

Страница 67: ...PRODIGIT 3260A Series Operation Manual I 3 1 3 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...

Страница 68: ...ion described in figure below 2 1 0 Peak 0 707Peak 3 4 3 4Peak voltage Wave Form when C F 1 0 when C F 3 4 Zero Crossing Current Wave Form Zero Crossing Zero Crossing Current Wave Form 1 5 DC Wave for...

Страница 69: ...er electronic load is attempted to be used for AC the frequency of 3260A series High Power electronic load must be set in accordance with the frequency of U U T Even if the output frequency of U U T i...

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