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Agilent Technologies J3972A Network Router User Manual

1. Agilent N5749A and N5769A Report No Date Description Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 50 mV 50 mV Front Panel Display Readback Both Vout 100 mV Vout 100 mV High Voltage Vout Both 99 9 V 100 1 V Front Panel Display Readback Both Vout 200 mV Vout 200 mV CV Load Effect Both 12 mV 12 mV CV Source Effect Both 12 mV 12 mV CV Ripple and Noise peak to peak Both N A 80 mV rms Both N A 8 mV Transient Response Voltage 1ms Both 500 mV 500 mV Current Programming amp Readback Minimum Current lout N5749A 7 5 mA 7 5 mA N5769A 15 mA 15 mA Front Panel Display Readback N5749A lout 22 5 mA lout 22 5 mA N5769A lout 45 mA lout 45 mA High Current lout N5749A 7 485 A 7 515 A N5769A 14 97 A 15 03 A Front Panel Display Readback N5749A lout 30 mA lout 30 mA N5769A lout 60 mA lout 60 mA CC Load Effect N5749A 6 5 mA 6 5mA N5769A 8 mA 8 mA CC Source Effect N5749A 2 75 mA 2 75 mA N5769A 3 5 mA 3 5 mA Test Description N5749A Setting N5769A Setting Voltage Programming amp Readback Min Voltage 0OV 0A 0OV 0A Voltage Programming amp Readback High Voltage 100 V 0A 100 V 0A CV Load Effect Source Effect Ripple and Noise 100 V 7 5 A 100 V 15 A Transient Response 100 V from 0 75 A to 6 75A 100 V from 1 5 A to 13 5 A Current Programming amp Readback Min Current 0A 100 V 0A 100 V Current Programming amp Read
2. CONDITION PTR NTR EVENT ENABLE ov 1 1 1 oc 2 PF 4 16 OT LOGICAL OR INH 512 512 512 A UNR 1024 1024 1024 STAT QUES COND STAT QUES ENAB lt n gt ERROR QUEUE STAT QUES PTR NTR lt n gt STAT QUES ENAB STAT QUES PTR NTR STAT QUES EVEN ERROR QUEUE NOT EMPTY STANDARD EVENT SERVICE STATUS REQUEST STATUS BYTE ENABLE EVENT ENABLE OUTPUT BUFFER emm 0 OPC 1 1 Seve NOT eel i EMPTY 3 BDE 8 8 LOGICAL EXE 16 16 OR CME 5 32 32 7 PON 128 128 STB SRE lt n gt SRE ESR ESE lt n gt ESE J OPERATION STATUS SERVICE CONDITION PTR NTR EVENT ENABLE REQUEST 5 GENERATION wTG 32 32 32 LOGICAL cv 8_ 256 256 256 OR cc 1041024 1024 1024 STAT OPER COND STAT OPER ENAB lt n gt STAT OPER PTR NTR lt n gt STAT OPER ENAB STAT OPER PTR NTR STAT OPER EVEN Series N5700 User s Guide 71 Status Commands The Standard Event group is programmed with Common commands as described later in this section Common commands also control additional status functions such as the Service Request Enable and the Status Byte registers STATus PRESet This command sets all defined bits in the Operation and Questionable PTR registers The command clears all defined bits in the Operation and Questionable NTR and Enable registers STATus OPERation EVENt This query returns the value of the Operation Ev
3. N3305A 3 N3305A Fixed Resistor for CV Ripple and Noise 0 0602 1kW 0 0302 2kW Series N5700 User s Guide 99 Verification 100 Test Record Form Agilent N5742A and N5762A Agilent N5742A and N5762A Report No Date Description Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 4mV 4 mV Front Panel Display Readback Both Vout 8 mV Vout 8 mV High Voltage Vout Both 7 992 V 8 008 V Front Panel Display Readback Both Vout 16 mV Vout 16 mV CV Load Effect Both 2 8 mV 2 8 mV CV Source Effect Both 2 8 mV 2 8 mV CV Ripple and Noise peak to peak Both N A 60 mV rms Both N A 8 mV Transient Response Voltage 1 2ms Both 40 mV 40 mV Current Programming amp Readback Minimum Current lout N5742A 90 mA 90 mA N5762A 165 mA 165 mA Front Panel Display Readback N5742A lout 270 mA lout 270 mA N5762A lout 495 mA lout 495 mA High Current lout N5742A 389 82 A 90 18 A N5762A 164 67 A 165 33 A Front Panel Display Readback N5742A lout 360 mA lout 360 mA N5762A lout 660 mA lout 660 mA CC Load Effect N5742A 23 mA 23 mA N5762A 38 mA 38 mA CC Source Effect N5742A 11 mA 11 mA N5762A 18 5 mA 18 5 mA Test Description N5742A Settings N5762A Settings Voltage Programming amp Readback Min Voltage 0OV 0A 0OV 0A Voltage Programming amp Readback High Voltage 8V 0A 8V 0A CV Load Effect Source Effect Ripple
4. Measure Commands6 7 Output Commands 68 Source Commands69 Status Commands 71 System Commands 77 Trigger Commands 79 This section gives the syntax and parameters for all the IEEE 488 2 SCPI Subsystem commands and Common commands used by the power supply It is assumed that you are familiar with the material in chapter 4 which explains the terms symbols and syntactical structures used here and gives an introduction to programming You should also be familiar with chapter 3 in order to understand how the power supply functions Subsystem commands are specific to functions They can be a single command or a group of commands The groups are comprised of commands that extend one or more levels below the root The subsystem commands are arranged alphabetically according to the function they perform Common commands begin with an and consist of three letters command or three letters and a query They are defined by the IEEE 488 2 standard to perform common interface functions Common commands are grouped along with the subsystem commands according to the function they perform 65 Calibration Commands Calibration Commands Calibration commands let you enable and disable the calibration mode change the calibration password calibrate current and voltage programming and store new calibration constants in nonvolatile memory If calibration mode has not been enabled with CALibrate STATe the calibration command
5. The Rear Panel At a Glance AC INPUT 1 AC input connector 2 DC output connector 3 USB connector 4 LAN connector 5 Analog Programming connector 6 SW1 setup switch 7 Remote Sense connector 8 GPIB connector 9 Ground screw 80V 600V 750W 6V 60V 1500W Wire clamp connector for 1500W output models IEC connector for 750W output models Wire clamp connector for 80V to 600V models Bus bars for 6V to 60V models Connector for connecting to a USB interface See chapter 4 for setup Connector for connecting to a LAN interface LINK LED indicates link integrity TX LED indicates LAN activity See chapter 4 for LAN setup Connector for the analog interface Includes output voltage and current limit programming and monitoring signals Shut Off control electrical signal Enable Disable control dry contact power supply ok Power Supply OK signal and operation mode CV CC signal See next page for details Nine position switch for selecting remote programming and monitoring modes for Output Voltage Current Limit and other control functions See next page for details Connector for making remote sensing connections for regulating the load voltage and compensati
6. 98 With the electronic load in CV mode set it for the output s full scale voltage The CC annunciator on the front panel must be on If it is not adjust the load so that the voltage drops slightly Divide the voltage drop DVM reading across the current monitoring resistor by its resistance to convert to amps and record this value lout Short the electronic load Divide the voltage drop DVM reading across the current shunt by its resistance to convert to amps and record this value Iout The difference in the current readings in steps 4 and 5 is the load effect which should not exceed the value listed in the test record card for the appropriate model under CC Load Effect CC Source Effect Test category performance This test measures the change in output current that results from a change in AC line voltage from the minimum to maximum value within the line voltage specifications 1 Turn off the power supply and connect the ac power line through a variable voltage transformer or AC source Connect the current shunt DVM and electronic load as shown in figure B Connect the DVM directly across the current shunt Set the variable voltage transformer to nominal line voltage To ensure that the values read during this test are not the instantaneous measurement of the AC peaks of the output current ripple several DC measurements should be made and averaged If you are using an Agilent 3458A you can set up the voltme
7. In position of a bi stable push switch Out position of a bi stable push switch Caution risk of electric shock Caution hot surface Caution refer to accompanying documents gt be peo r z 4 A In This Book This User s Manual contains the operating instructions installation instructions and specifications of the Agilent Technologies Series N5700 750W and 1500W System DC Power Supplies Specific chapters in this manual contain the following information Quick Reference Chapter 1 is a quick reference section that helps you quickly become familiar with your Agilent N5700 power supply Installation Chapter 2 describes how to install your power supply It describes how to connect various loads to the output It discusses remote sensing as well as parallel and series operation Operating the Power Supply Locally Chapter 3 describes how to operate the power supply from the front panel and from the analog connector on the rear panel It also includes a turn on check out procedure to verify the unit is operating properly Operating the Power Supply Remotely Chapter 4 describes how to configure the remote interfaces It also gives a brief overview of the SCPI command structure and basic programming concepts Language Reference Chapter 5 describes all of the SCPI programming commands Programming Examples Chapter 6 provides Visual BASIC example programs that illustrate some common applications
8. This variable measures the voltage Dim MeasureVoltString As String This variable controls the current Dim CurrSetting As Double This variable controls the triggered voltage setting Dim trigVoltSetting As Double These variables are necessary to initialize the VISA COM Dim ioMgr As AgilentRMLib SRMC1s Dim Instrument As VisaComLib Formatted1I0488 The following line provides the VISA name of the GPIB interface IOaddress GPIBO 5 INSTR Use the following line instead for LAN communication TOaddress TCPIPO 141 25 36 214 Series N5700 User s Guide 83 Trigger Programming Example Use the following line instead for USB communication TOaddress USBO 2391 1799 US00000002 Tnitialize the VISA COM communication Set ioMgr New AgilentRMLib SRMCls Set Instrument New VisaComLib Formatted1I0488 Set Instrument IO ioMgr Open GPIBaddress VoltSetting 3 volts CurrSetting 1 5 amps trigVoltSetting 5 volts With Instrument End End Sub 84 Send a power reset to the instrument WriteString RST Query the instrument for the IDN string WriteString IDN IDN ReadString Set the voltage WriteString VOLT amp Str VoltSetting Set the current level WriteString CURR amp Str CurrSetting Set the triggered voltage level WriteString VOLT TRIG amp Str trigVoltSetting Turn the output on WriteString OUTP ON Measure the voltage bef
9. Use twisted or shielded wires to minimize noise pick up If shielded wires are used the shield should be connected to the ground at one point either at the power supply chassis or the load ground The optimal point for the shield ground should be determined by experimentation To configure the power supply for remote sensing 27 Load Considerations e Turn off the power supply e Remove the local sense jumpers from the J2 connector e Connect the negative sense lead to terminal 5 S and the positive sense lead to terminal 1 S Make sure that the connector plug is securely inserted into the connector body e Turn on the power supply Load lines Twisted pair shortest length possible Power Supply Rem sense Local sense Local sense Rem sense Sense lines Twisted pair or shielded wires If the power supply is operating in remote sense and either the positive or negative load wire is not connected an internal protection circuit will activate and shut down the power supply To resume operation turn the power supply off connect the open load wire and turn on the power supply Load Considerations 28 Multiple Loads The following figure shows multiple loads connected to one power supply Each load should be connected to the power supply s output terminals using separate pairs of wires It is recommended that each pair of wires will be as short as possible and twisted or shielded to minimize noise
10. 240 mA N5763A lout 480 mA lout 480 mA CC Load Effect N5743A 17 mA 17 mA N5763A 29 mA 29 mA CC Source Effect N5743A 8 mA 8 mA N5763A 14 mA 14 mA Test Description N5743A Setting N5763A Setting Voltage Programming amp Readback Min Voltage OV 0A 0OV 0A Voltage Programming amp Readback High Voltage 12 5 V 0 A 12 5 V 0A CV Load Effect Source Effect Ripple and Noise 12 5 V 60 A 12 5 V 120 A Transient Response 12 5 V from 6 A to 54A 12 5 V from 12 A to 108 A Current Programming amp Readback Min Current 0 A 12 5 V 0 A 12 5 V Current Programming amp Readback High Current 60 A 12 5 V 120 A 12 5 V CC Load Effect Source Effect 60 A 12 5 V 120 A 12 5 V Load Requirements N5743A N5763A Current shunt 0 01Q 100 A 0 0010 300 A Agilent N3300 Electronic load modules 2 N3305A 3 N3305A Fixed Resistor for CV Ripple and Noise 0 21Q 1kW 0 1002 2kW Series N5700 User s Guide 101 Verification 102 Test Record Form Agilent N5744A and N5764A Agilent N5744A and N5764A Report No Date Description Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 10 mV 10 mV Front Panel Display Readback Both Vout 20 mV Vout 20 mV High Voltage Vout Both 19 98 V 20 02 V Front Panel Display Readback Both Vout 40 mV Vout 40 mV CV Load Effect Both 4 mV 4mV CV Source Effect Both 4 mV 4mV CV Ripple and Noise peak to peak Both N A 60 mV rms B
11. At a Glance SCPI Command STATus OPERation EVENt CONDition ENABle lt NRf gt NTRansition lt NRf gt PTRansition lt NRf gt PRESet QUEStionable EVENt CONDition ENABle lt NRf gt NTRansition lt NRf gt PTRansition lt NRf gt SYSTem COMMunicate RLSTate LOCal REMote RWLock ERRor VERSion TRIGger SOURce BUS TRANsient MMediate Description Returns the value of the operation event register Returns the value of the operation condition register Enables specific bits in the Event register Sets the Negative transition filter Sets the Positive transition filter Presets all enable and transition registers to power on Returns the value of the questionable event register Returns the value of the questionable condition register Enables specific bits in the Event register Sets the Negative transition filter Sets the Positive transition filter Specifies the Remote Local state of the instrument Returns the error number and error string Returns the SCPI version number Sets the measurement trigger source Generates a transient trigger Common Commands 16 Command CLS ESE lt NRf gt ESE ESR IDN OPC OPC OPT RCL lt NRf gt RST SAV lt NRf gt SRE lt NRf gt SRE STB TRG TST WAI Description Clear status Standard event status enable Return standard event status enable Return event status register Ret
12. Set Instrument IO ioMgr Open GPIBaddress VoltSetting 3 volts CurrSetting 1 5 amps overvoltSetting 10 volts overCurrentOn 1 1 for on 0 for off With Instrument Send a power reset to the instrument WriteString RST Query the instrument for the IDN string WriteString IDN IDN ReadString Set the voltage WriteString VOLT amp Str VoltSetting 82 Series N5700 User s Guide Trigger Programming Example Set the over voltage level WriteString VOLT PROT LEV amp Str overVoltSetting Set the current level WriteString CURR amp Str CurrSetting Turn on over current protection WriteString CURR PROT STAT amp Str overCurrentOn Turn the output on WriteString OUTP ON Measure the voltage WriteString MEAS VOLT MeasureVoltString ReadString MsgBox Measured Voltage is amp MeasureVoltString Check instrument for any errors WriteString Syst err ErrString ReadString Give message if there is an error If Val ErrString Then MsgBox Error in instrument amp vbCrLf amp ErrString End If End With End Sub Trigger Programming Example This example illustrates how to set up and trigger an output voltage change The voltage is measured before and after the trigger Sub main_Trig Dim IDN As String Dim IOaddress As String Dim ErrString As String Dim msgl As String This variable controls the voltage Dim VoltSetting As Double
13. activates If the condition that caused the over voltage shutdown is still present the OVP circuit will turn the output off again 39 Protection Functions e Press the OUT ON button to turn the output on e Turn the AC power off wait a few seconds and turn it on e Turn the output off then on again using the Shut Off pin on the J1 connector This only applies in Auto Restart mode e Ifthe OVP continues to trip try lowering the output voltage below the OVP setting or raising the OVP setting Under Voltage Limit The under voltage limit prevents adjustment of the output voltage below a certain limit The combination of UVL and OVP functions let you create a protection window for sensitive load circuitry Setting the UVL can be made when the output is enabled On or disabled Off To set the UVL level press the OVP UVL button twice so that the display shows UUL The display will show the UVL setting Rotate the voltage knob to adjust the UVL level The display will show UUL and the setting value for another five seconds and then return to its previous state The UVL settings are limited at the maximum level to approximately 5 below the output voltage setting Attempting to adjust the UVL above this limit will result in no response to the adjustment attempt The minimum UVL setting is zero Over Current Protection 40 Over current protection will shut down the power supply output if the load current exceeds the current
14. amp Readback High Voltage 40V 0A 40V 0A CV Load Effect Source Effect Ripple and Noise 40V 19A 40 V 38 A Transient Response 40 V from 1 9 A to 17 1 A 40 V from 3 8 A to 34 2 A Current Programming amp Readback Min Current 0A 40 V 0A 40V Current Programming amp Readback High Current 19 A 40 V 38 A 40 V CC Load Effect Source Effect 19 A 40 V 38 A 40 V Load Requirements N5746A N5766A Current shunt 0 01Q 100 A 0 01Q 100 A Agilent N3300 Electronic load modules 2 N3305A 3 N3305A Fixed Resistor for CV Ripple and Noise 2 11Q 1kW 1 050 2kW Series N5700 User s Guide Verification Test Record Form Agilent N5747A and N5767A Agilent N5747A and N5767A Report No Date Description Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 30 mV 30 mV Front Panel Display Readback Both Vout 60 mV Vout 60 mV High Voltage Vout Both 59 94 V 60 06 V Front Panel Display Readback Both Vout 120 mV Vout 120 mV CV Load Effect Both 8 mV 8 mV CV Source Effect Both 8 mV 8 mV CV Ripple and Noise peak to peak Both N A 60 mV rms Both N A 8 mV Transient Response Voltage 1ms Both 300 mV 300 mV Current Programming amp Readback Minimum Current lout N5747A 12 5 mA 12 5 mA N5767A 25 mA 25 mA Front Panel Display Readback N5747A lout 37 5 mA lout 37 5 mA N5767A lout 75 mA n lout 75 mA High Current lout N5747A 12 475 A comme
15. an Introduction Parameter Types Data programmed or queried from the power supply is ASCII The data may be numerical or character string Numeric Parameters Symbol lt NR1 gt lt NR2 gt lt NR3 gt lt NRf gt lt NRf gt lt Bool gt Response Formats Digits with an implied decimal point assumed at the right of the least significant digit Examples 273 Digits with an explicit decimal point Example 0273 Digits with an explicit decimal point and an exponent Example 2 73E 2 Parameter Formats Extended format that includes lt NR1 gt lt NR2 gt and lt NR3 gt Examples 273 273 2 73E2 Expanded decimal format that includes lt NRf gt and MIN MAX Examples 273 273 2 73E2 MAX MIN and MAX are the minimum and maximum limit values that are implicit in the range specification for the parameter Boolean Data Example 0 1 or ON OFF Discrete and String Parameters Symbol None string Response Formats Discrete parameters are used to program settings that have a limited number of values like RST RCLO BUS You can mix upper and lower case letters Query responses will always return the short form in all upper case letters String parameters can contain virtually any set of ASCII characters A string must begin and end with matching quotes either with a single quote or a double quote You can include the quote delimiter as part of the string by typing it twice without any cha
16. see ESR are allowed to set the ESB Event Summary Bit of the Status Byte register A 1 in the bit position enables the corresponding event All of the enabled events of the Standard Event Status Event Register are logically OR ed to cause the Event Summary Bit ESB of the Status Byte Register to be set The query reads the Standard Event The query reads the Standard Event Status Enable register The bit configuration of the Standard Event register is as follows Bit Position 7 6 5 4 3 2 1 0 Bit Value 128 F 32 16 8 4 1 Bit Name PON CME EXE DDE QUE OPC PON Power on has occurred DDE Device dependent error CME Command error QUE Query error EXE Execution error OPC Operation complete This query reads the Standard Event Status Event register Reading the register clears it The bit configuration is the same as the Standard Event Status Enable register see ESE This command causes the instrument to set the OPC bit bit 0 of the Standard Event Status register when the instrument has completed all pending operations Pending operations are complete when All commands sent before OPC have been executed This includes overlapped commands Most commands are sequential and are completed before the next command is executed Commands that affect output voltage current or state relays and trigger actions are executed in parallel or overlapped with subsequent commands sent to the power supply The OPC command provide
17. 38 57 76 95 142 285 570 SOURce VOLTage PROTection LEVel lt NRf gt SOURce VOLTage PROTection LEVel This command sets the over voltage protection OVP level of the output The values are programmed in volts If the output voltage exceeds the OVP level the output is disabled and OV is set in the Questionable Condition status register The RST value Max The range of values that can be programmed for this command is coupled with the immediate voltage level setting The minimum value for the voltage protection level is either the value in the following table or the immediate voltage setting multiplied by 1 05 whichever is higher The maximum setting is the value in the table An over voltage condition can be cleared with the Output Protection Clear command after the condition that caused the OVP trip is removed Model V rating 6V 8V 12 5V 20V 30V 40V 60V 80V 100V 150V 300V 600V Min protection limit 0 5 0 5 1 0 1 0 2 0 2 0 5 0 5 0 5 0 5 0 5 0 5 0 Max protection limit 75 10 15 24 36 44 66 88 110 165 330 660 70 Series N5700 User s Guide Status Commands Status Commands Status commands program the power supply s status registers As shown in the following figure the power supply has three groups of status registers Operation Questionable and Standard Event The Operation and Questionable status groups each consist of the Condition Enable and Event registers and NTR and PTR filters QUESTIONABLE STATUS
18. 40 volts whichever is lower Wait a few seconds until the DC VOLTS display returns to show the output voltage Use the voltage knob and raise the output voltage of the unit until it approaches the OVP setting Check to make sure that the output voltage cannot be set higher than the OVP setting Press the OVP UVL button again Rotate the voltage knob and reset the OVP level of the unit to its maximum setting Series N5700 User s Guide UVL Check Turn On Check Out Press the OVP UVL button twice so that the DC AMPS display indicates UUL The DC VOLTS display shows the UVL level Use the voltage knob and set the UVL level of the unit to 50 of its full scale voltage rating or 30 volts whichever is lower Wait a few seconds until the DC VOLTS display returns to show the output voltage Use the voltage knob and lower the output voltage of the unit until it approaches the UVL setting Check to make sure that the output voltage cannot be set lower than the UVL setting Press the OVP UVL button twice Rotate the voltage knob and reset the UVL level of the unit to its minimum setting Constant Current Check OCP Check Series N5700 User s Guide Turn the POWER switch off Wait a few seconds until the AC indicator on the front panel goes out Use a heavy wire and short the V and V output terminals together Turn the POWER switch on Turn the output on by pressing the OUT ON button The green OUT ON indicator should be i
19. 5 mA N5771A lout 15 mA S o lout 15 mA High Current lout N5751A 2 495 A 2 505 A N5771A 4 99 A 5 01A Front Panel Display Readback N5751A lout 10 mA lout 10 mA N5771A lout 20 mA lout 20 mA CC Load Effect N5751A 5 5 mA 5 5 mA N5771A 6 mA O 6 mA CC Source Effect N5751A 2 25 mA 2 25 mA N5771A 2 5mA ee 2 5mA Test Description N5751A Setting N5771A Setting Voltage Programming amp Readback Min Voltage OV 0A 0OV 0A Voltage Programming amp Readback High Voltage 300 V 0A 300 V 0A CV Load Effect Source Effect Ripple and Noise 300 V 2 5 A 300 V 5A Transient Response 200 V from 0 25 A to 2 25A 200 V from 0 5 A to 4 5 A Current Programming amp Readback Min Current 0 A 300 V 0 A 300 V Current Programming amp Readback High Current 2 5 A 300 V 5 A 300 V CC Load Effect Source Effect 2 5 A 300 V 5 A 300 V Load Requirements N5751A N5771A Current shunt 0 1Q15A 0 19 15A Use fixed resistor instead of load modules 120Q 1kW 60Q 2kW Fixed Resistor for CV Ripple and Noise 1209 1kW 60Q 2kW Series N5700 User s Guide 109 Verification 110 Test Record Form Agilent N5752A and N5772A Agilent N5752A and N5772A Report No Date Description Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 300 mV 300 mV Front Panel Display Readback Both Vout 600 mV Vout 600 mV High Voltage Vout Both 599 4 V 600 6 V Front Panel Display Readback Bot
20. Byte register does not clear it The input summary bits are cleared when the appropriate event registers are read The MAV bit is cleared at power on by CLS or when there is no more response data available A serial poll also returns the value of the Status Byte register except that bit 6 returns Request for Service RQS instead of Master Status Summary MSS A serial poll clears RQS but not MSS When MSS is set it indicates that the power supply has one or more reasons for requesting service Bit Position 7 6 5 4 3 2 1 0 Bit Value 128 64 32 16 8 4 Bit Name OPER MSS ESB MAV QUES ERR ROS OPER Operation status summary MSS Master status summary ROS Request for service ESB Event status byte summary MAV Message available QUES Questionable status summary ERR Error queue not empty This command instructs the power supply not to process any further commands until all pending operations are completed Pending operations are as defined under the OPC command WAI can be aborted only by sending the power supply a Device Clear command Series N5700 User s Guide System Commands System Commands System commands control system functions that are not directly related to output control measurement or status functions Common commands are also used to control system functions SYSTem COMMunicate RLSTate LOCal REMote RWLock SYSTem COMMunicate RLSTate LOCal REMote RWLock This command configures the r
21. FOLD FOLD HOLD HOLD ID IMAX IMAX IOUT ISET lt current gt ISET OUT lt on off gt OUT Queries the accumulated status ASTS The response represents the sum of the binary weights of the ASTS register bits The ASTS register is set to the present status after being queried Returns the power supply to the power on state Same as RST Generates error 203 Generates error 203 Queries the present programming or hardware error An error code number is returned over the GPIB to identify the error The error register is cleared after being read Queries the fault register A bit is set in the fault register when the corresponding bit in both the status and the mask registers The response is an integer 0 to 255 The fault register is cleared after being read Turns the OCP on or off This is only allowed for constant current mode FOLD 2 Constant voltage mode FOLD1 generates error 203 Queries the OCP setting The response is FOLD 2 When turned on HOLD 1 causes the VSET ISET FOLD and UNMASK values to be held until a trigger occurs This only applies to the compatibility functions not the SCPI functions Queries the hold setting The response is HOLD 1 Queries the identification model number of the power supply Sets a soft programming limit for current Attempting to program the current above this setting will generate an error Queries the IMAX setting The response is a real number Qu
22. Ib If the power supply is operated without the remote sense lines or local sense jumpers it will continue to work but the output voltage regulation will be degraded Also the OVP circuit may activate and shut down the power supply Local Sensing The power supply is shipped with the rear panel J2 sense connector wired for local sensing of the output voltage With local sensing the output voltage regulation is made at the output terminals This method does not compensate for voltage drop on the load wires therefore it is recommended only for low load current applications or where the load regulation is less critical Power Supply Rem sense Load lines twisted Local sense pair shortest length Local sense possible Rem sense Remote Sensing Series N5700 User s Guide Use remote sensing in applications where load regulation at the load is critical Remote sensing allows the power supply to automatically compensate for the voltage drop in the load leads Refer to Appendix A for the maximum allowable voltage drop on the load wires Remote sensing is especially useful in constant voltage mode with load impedances that vary or have significant lead resistance It has no effect in constant current mode Because sensing is independent of other power supply functions it can be used regardless of how the power supply is programmed With remote sensing voltage readback monitors the load voltage at the remote sense points
23. J1 Connector Connections 34 3 Operating the Power Supply Locally 35 Turn On Check Out 36 Normal Operation 38 Protection Functions39 Output On Off Control 42 Analog Programming of Output Voltage and Current 44 4 Operating the Power supply Remotely 49 Configuring the Interface50 SCPI Commands an Introduction 59 5 Language Reference 65 Series N5700 User s Guide Calibration Commands 66 Measure Commands67 Output Commands68 Source Commands69 Status Commands 71 System Commands 77 Trigger Commands 79 6 Programming Examples 81 Output Programming Example 82 Trigger Programming Example 83 A Specifications 85 Performance Specifications 86 Supplemental Characteristics 87 Outline Diagram 89 B Verification and Calibration 91 Verification 92 Calibration 111 C Service 113 Types of Service Available 114 Repackaging for Shipment 114 Operating Checklist 114 Error Messages 116 D Compatibility 121 Differences In General 122 Compatibility Command Summary 123 Index 125 Series N5700 User s Guide Series N5700 User s Guide 1 Quick Reference The Agilent N5700 DC Power Supplies Ata Glance 8 The Front Panel Ata Glance 10 The Rear Panel Ata Glance 12 SCPI Programming Commands At a Glance 15 This chapter concisely describes the Agilent Technologies Series N5700 Power Supplies This chapter is not meant to describe every operating feature in detail It is simply a quick reference
24. Setting Voltage Programming amp Readback Min Voltage 0OV 0A 0OV 0A Voltage Programming amp Readback High Voltage 150V 0A 150V 0A CV Load Effect Source Effect Ripple and Noise 150V 5A 150 V 10 A Transient Response 150 V from 0 5 A to 4 5 A 150 V from 1 A to 9 A Current Programming amp Readback Min Current 0 A 150 V 0 A 150 V Current Programming amp Readback High Current 5 A 150 V 10 A 150 V CC Load Effect Source Effect 5 A 150 V 10 A 150 V Load Requirements N5750A N5770A Current shunt 0 19 15A 0 19 15A Agilent N3300 Electronic load modules 2 N3305A 3 N3305A Fixed Resistor for CV Ripple and Noise 30 0Q 1kW 15 0Q 2kW Series N5700 User s Guide Verification Test Record Form Agilent N5751A and N5771A Agilent N5751A and N5771A Report No Date Description Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 150 mV 150 mV Front Panel Display Readback Both Vout 300 mV Vout 300 mV High Voltage Vout Both 299 7 V 300 3 V Front Panel Display Readback Both Vout 600 mV Vout 600 mV CV Load Effect Both 32 mV 32 mV CV Source Effect Both 32 mV 32 mV CV Ripple and Noise peak to peak Both N A 150 mV rms Both N A 20 mV Transient Response Voltage 2ms Both 1V 1V Current Programming amp Readback Minimum Current lout N5751A 2 5 mA 2 5 mA N5771A 5 mA 5 mA Front Panel Display Readback N5751A lout 7 5 mA lout 7
25. Specifications Appendix A describes specifications and supplemental characteristics Verification and Calibration Procedures Appendix B explains the verification and calibration procedures Service Appendix C describes what to do if your unit requires service Compatibility Appendix D documents the compatibility commands of the Agilent 603xA power supplies that are supported by the Agilent N5700 power supplies You can contact Agilent Technologies at one of the following telephone numbers for warranty service or technical support information In the United States 800 829 4444 In Europe 31 20 547 2111 In Japan 0120 421 345 Or use our Web link for information on contacting Agilent in your country or specific location www agilent com find assist Or contact your Agilent Technologies Representative The web contains the most up to date version of the manual Go to http www agilent com find N5700 to get the latest version of the manual Series N5700 User s Guide Contents 1 Quick Reference 7 The Agilent N5700 DC Power Supplies Ata Glance 8 The Front Panel Ata Glance 10 The Rear Panel At a Glance 12 SCPI Programming Commands At a Glance 15 2 Installation 17 General Information 18 Inspecting the Unit 19 Installing the Unit 19 Connecting the Line Cord 21 Connecting the Load 23 Output Voltage Sensing 26 Load Considerations 28 Parallel Connections 30 Series Connections 32
26. Subsystem commands perform specific power supply functions A portion of the SOURce subsystem is shown below to illustrate the tree system SOURce CURRent LEVel IMMediate lt NRf gt TRIGgered lt NRf gt PROTection STATe lt Bool gt SOURce is the root keyword of the command CURRent is a second level keyword LEVel and PROTection are third level keywords and IMMediate TRIGgered and STATe are fourth level keywords Colons separate higher level from lower level keywords The following command syntax is used in this manual Items within square brackets are optional The representation SOURce VOLTage means that SOURce may be omitted Items within angle brackets are parameter descriptions For example lt NR1 gt indicates a specific form of numerical data Vertical bars separate alternative parameters For example VOLT CURR indicates that either VOLT or CURR can be used as a parameter Braces enclose the parameter choices for a given command The syntax characters cannot be included in the command string Multiple Commands in a Message Series N5700 User s Guide Multiple SCPI commands can be combined and sent as a single message with one message terminator There are two important considerations when sending several commands within a single message Use a semicolon to separate commands within a message There is an implied path that affects how commands are interpreted by the pow
27. The Power Supply OK signal on the J1 connector indicates a fault condition in the power supply J1 pin 16 is a TTL output signal Pins 2 and 3 which are connected internally are the signal common All pins are optically isolated from the power supply output With no fault Power Supply OK is high with a maximum source current of 2mA When a fault occurs Power Supply OK is low with a maximum sink current of 1mA The following faults set this signal low Over voltage protection Enable Disable signal true Over current protection Shut Off signal true Over temperature protection GPIB failure AC line failure Output turned off Safe Start and Auto Restart Series N5700 User s Guide The power supply can be programmed to have either the last operating settings Auto Restart or the reset settings Safe Start apply at turn on Press and hold the OUT ON button to select between Safe Start and Auto Restart modes The display continuously cycles between SAF and AUT every three seconds Releasing the OUT ON button while one of the modes is displayed selects that mode In Safe Start mode the power supply turns on with the reset settings see chapter 5 under RST The output is disabled and the output voltage and current are zero This is the factory default 43 Analog Programming of Output Voltage and Current In Auto Restart mode the power supply restores the operating settings that were saved when it was last turned off see below
28. and Noise 8V 90A 8V 165A Transient Response 8 V from 9 A to 81A 8 V from 16 5 A to 148 54 Current Programming amp Readback Min Current 0A 8V 0A 8V Current Programming amp Readback High Current 90A 8V 165A 8 V CC Load Effect Source Effect 90 A 8 V 165 A 8 V Load Requirements N5742A N5762A Current shunt 0 01Q 100 A 0 001Q 300 A Agilent N3300 Electronic load modules 2 N3305A 3 N3305A Fixed Resistor for CV Ripple and Noise 0 09Q 1kW 0 04Q 2kW Series N5700 User s Guide Test Record Form Agilent N5743A and N5763A Verification Agilent N5743A and N5763A Report No Date Description Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 6 25 mV 6 25 mV Front Panel Display Readback Both Vout 12 5 mV Vout 12 5 mV High Voltage Vout Both 12 4875 V 12 5125 V Front Panel Display Readback Both Vout 25 mV Vout 25 mV CV Load Effect Both 3 25 mV 3 25 mV CV Source Effect Both 3 25 mV 3 25 mV CV Ripple and Noise peak to peak Both N A 60 mV rms Both N A 8 mV Transient Response Voltage 1 2ms Both 62 mV 62 mV Current Programming amp Readback Minimum Current lout N5743A 60mA 60 mA N5763A 120 mA 120 mA Front Panel Display Readback N5743A lout 180 mA lout 180 mA N5763A lout 360 mA lout 360 mA High Current lout N5743A 59 88 A 60 12 A N5763A 119 76 A 120 24 A Front Panel Display Readback N5743A lout 240 mA lout
29. and floated from each other Series N5700 User s Guide 33 J1 Connector Connections J1 Connector Connections 34 WARNING SHOCK HAZARD There is a potential shock hazard at the J1 connector when using a power supply with a rated output greater than 40V Ensure that the load wiring insulation rating is greater than or equal to the maximum output voltage of the power supply External programming and monitoring signal are located on the J1 connector The power supply is shipped with a mating plug that makes it easy for you to make your wire connections It is essential to use this plastic body plug to conform to safety agency requirements If a shield is required for the J1 wires connect the shield to the ground screw located on the power supply chassis Refer to the following figure for the pin assignments A description of the pins is given in chapter 1 Chassis Common Chassis Common Enable Current Program Voltage Program Local Analog Voltage Monitor Common S cv cc Parallel Enable Current Monitor Shut Off Current Prog Return Power Supply OK Voltage Prog Return Local Analog State Pins on this side are Pins on this side are isolated referenced to the negative from output terminals and are sense S terminal referenced to chassis ground The mating plug specifications for the J1 connector are as follows Mating Plug AMP part number 745211 2 Wire Size AWG 26 to AWG 22 Extraction tool
30. control and configure all of the front panel functions as well as additional functions such as triggering which are not available from the front panel Provided that you have correctly configured the instrument s LAN settings as described in this section simply type the instrument s Hostname or IP address into your browser to launch the application The built in Web server requires Internet Explorer 5 or Netscape 6 2 Your PC must also have the ability to communicate over a LAN You also need the Java Sun plug in This is included in the Java Runtime Environment Refer to Sun Microsystem s website The default Hostname Each Agilent N5700 power supply is shipped with a default Hostname The as shipped LAN Hostname has the format A modelnumber serialnumber where modelnumber is the instrument s 6 character model number e g N5741A and serialnumber is 5th through the 9th character of the 10 character serial number located on the label on the side of the unit e g D0001 if the serial number is US24D00013 Connecting to a site LAN 1 Ifyou do not have the Agilent I O Library software installed on your computer install the I O software from the CD ROM included with this manual 2 Connect the instrument to the site LAN Provided that your network has a DHCP server and uses Dynamic DNS naming service the instrument will automatically obtain an IP address from the network This may take up to one minute It will also
31. disabled the output voltage and current go to zero and the display shows OFF Output Shut Off Terminals Output Shut Off SO terminals are available on the J1 connector to enable or disable the power supply output This function is edge triggered J1 pin 15 is the Shut Off input and pins 2 and 3 which are connected internally are the signal common All pins are optically isolated from the power supply output The Shut Off input accepts a 2 5V to 15V signal or an open short contact to enable or disable the output The Shut Off control logic is selected by SW1 setup switch 5 When an on to off transition is detected at the Shut Off input the Shut Off function enables or disables the output according to the signal level or the open short applied to J1 pin 15 When the output has been disabled by the Shut Off function the display shows SO to indicate the output is disabled To re enable the output after it has shut down you must disable the Shut Off signal In Auto Restart mode operation resumes automatically In Safe Start mode the Shut Off function is latched You must also press the OUT ON button or send an OUTPut PROTection CLEar command to resume operation The Shut Off function can be used to shut down multiple power supplies in a daisy chain fashion as explained later in this chapter It can also be used to reset the OVP and OCP as previously described SW1 switch 5 SO Signal Level Output Display Down default 2 15 V
32. is USB0 2391 2055 serialnumber 0 INSTR where 2391 is the Agilent code 2055 is the N5700 code and serialnumber is the 8 digit serial number located on the label on the side of the unit 4 You can also use IO Config to display the USB Devices dialog box From this box you can verify the instrument s identification parameters as well as change its Alias name Assign USB device alias x Alias name UsbDevice2 Identification Agilent Technologies NS7674 m Visa Resource Name Preferred Poewe USB0 2391 2055 23L7062 0 INSTR Alternate m SICL Address String Preferred bosi Alternate usb0 2391 2055 23L7062 0 WARNING The latest service pack is required for USB connectivity Please see x E the IO Libraries readme for more details 5 Use an application such as VISA Assistant to verify communications with instruments via the USB interface Use either the Alias name or the Visa Resource Name to communicate with the instrument Series N5700 User s Guide 51 Configuring the Interface 52 LAN Interface The following steps will help you quickly get started connecting and configuring your instrument on a Local Area Network LAN The built in Web server Your Agilent N5700 power supply has a built in Web server that lets you control it directly from an internet browser on your computer The instrument s built in Web server which is enabled when shipped lets you
33. operates in constant current mode CV CC signal output is low 0 0 6V with maximum 10mA sink current Over Voltage Protection Series N5700 User s Guide The over voltage protection protects against over voltage conditions on the output If the output voltage attempts to exceed the programmed limit in response to an analog programming signal or in the event of a power supply failure the over voltage protection circuit will protect the load by disabling the output The voltage is monitored at the sense terminals thus providing the protection level directly at the load Upon detection of an over voltage condition the output is disabled the display shows OVP the PROT indicator blinks and OV is set in the Questionable Condition status register Adjustment of the over voltage setting can be made when the output is enabled On or disabled Off To set the OVP level press the OVP UVL button so that the display indicates OUP The display will show the OVP setting Rotate the voltage knob to adjust the OVP level The display will show OVP and the setting value for another five seconds and then return to its previous state The OVP settings are limited at the minimum level to approximately 5 above the output voltage setting Attempting to adjust the OVP below this limit will result in no response to the adjustment attempt Refer to Appendix A for the maximum OVP settings Use one of the following methods to reset the OVP circuit after it
34. or Open On Voltage Current 0 0 4V or Short Off SO Up 2 15 V or Open Off SO 0 0 4V or Short On Voltage Current After applying AC power the output will not be disabled by the Shut Off function if the Shut Off input is in the shut off state This is because the unit has not detected an on to off Shut Off transition 42 Series N5700 User s Guide Output On Off Control Enable Disable Terminals CAUTION To prevent possible damage to the unit do not connect the Enable or Enable terminals to the positive or negative output terminals Enable Disable terminals are available on the J1 connector to enable or disable the power supply output This function is level triggered Simply connect a switch or relay between J1 pins 1 and 14 This function is activated by SW1 setup switch 9 These pins disable the output when they are opened When the output is disabled the PROT indicator on the front panel will blink To re enable the output after it has shut down you must short the Enable and Enable terminals In Auto Restart mode operation resumes automatically In Safe Start mode the Enable Disable function is latched You must also press the OUT ON button or send an OUTPut PROTection CLEar command to resume operation SW1 switch 9 ENA ENA pins Output Display Prot Indicator Down default Not active On Voltage Current Off Up Opened Off ENA Blinking Shorted On Voltage Current Off Power Supply OK Signal
35. output is turned off by one of the external J1 inhibit signals OT The output is disabled by the over temperature protection PF The output is disabled because AC power has failed OC The output is disabled by the over current protection OV The output is disabled by the over voltage protection STATus QUEStionable CONDition This query returns the value of the Questionable Condition register That is a read only register which holds the real time unlatched questionable status of the power supply Series N5700 User s Guide 73 Status Commands 74 STATus QUEStionable ENABle lt NRf gt STATus QUEStionable ENABle This command and its query set and read the value of the Questionable Enable register This register is a mask for enabling specific bits from the Questionable Event register to set the questionable summary bit QUES of the Status Byte register This bit bit 3 is the logical OR of all the Questionable Event register bits that are enabled by the Questionable Status Enable register The Preset value 0 STATus QUEStionable NTR lt NRf gt STATus QUEStionable PTR lt NRf gt STATus QUEStionable NTR STATus QUEStionable PTR CLS These commands set or read the value of the Questionable NTR Negative Transition and PTR Positive Transition registers These registers serve as polarity filters between the Questionable Condition and Questionable Event registers to cause the following actions When a
36. pick up and radiation The sense wires should be connected to the power supply output terminals or to the load with the most critical load regulation requirement Load lines twisted pair shortest length possible Supply Rem sense Local sense Local sense Rem sense Series N5700 User s Guide Load Considerations If remotely located distribution terminals are used as shown in the following figure the power supply output terminals should be connected to the remote distribution terminals by a pair of twisted and or shielded wires Connect each load to the distribution terminals separately Remote voltage sensing is recommended under these circumstances Sense either at the remote distribution terminals or if one load is more sensitive than the others directly at the critical load Distribution terminal Load t Power Supply oad 2 Rem sense a Local sense Local sense Rem sense Load 3 Output Noise and Impedance Effects To minimize the noise pickup or radiation the load wires and remote sense wires should be twisted pairs to the shortest possible length Shielding of sense leads may be necessary in high noise environments Where shielding is used connect the shield to the chassis via a rear panel ground screw Even if noise is not a concern the load and remote sense wires should be twisted pairs to reduce coupling which might impact the stability of power supply The sense leads should be separa
37. power cord connecting 21 power receptacle 19 power supply OK signal 43 power fail protection 41 print date 2 PROT 11 protection functions 39 queries 61 QUES 76 rack mounting 20 REM 11 remote voltage sensing 27 repackaging 114 repacking 19 response data types 63 ROS 76 SAF 10 safe start 43 safety 3 19 SCPI command path 59 commands 15 device clear 63 message unit 60 multiple commands 59 syntax 59 shut off terminals 42 slave unit 31 source commands 69 Series N5700 User s Guide Index SOUR CURR IMM 69 SOUR CURR PROT STAT 69 SOUR CURR TRIG 69 SOUR VOLT IMM 69 SOUR VOLT LIM LOW 70 SOUR VOLT PROT LEV 70 SOUR VOLT TRIG 69 specifications characteristics 87 performance 86 status commands 71 STAT OPER COND 72 STAT OPER ENAB 72 STAT OPER NTR 73 STAT OPER PTR 73 STAT OPER 72 STAT PRES 72 STAT QUES COND 73 STAT QUES ENAB 74 STAT QUES NTR 74 STAT QUES PTR 74 STAT QUES 73 string parameters 62 Subnet Mask 55 subsystem commands 65 suffixes 62 support rails 20 SW1 switch 12 13 system commands 77 SYST COMM RLST 77 SYST ERR 77 SYST VERS 77 T transient recovery time 96 trigger commands 79 TRIG 79 TRIG SOUR 79 trigger programming example 83 turn on check out 36 UFP 11 under voltage check 37 under voltage limit 40 USB ID string 51 USB interface 51 UUL 11 127 Index UVL 11 ver
38. programming and monitoring System Features e Built in GBIB LAN USB interface e A built in Web server that lets you control the instrument directly from an internet browser on your computer e Zero gap stacking no ventilation holes at the top and bottom surface of the power supply e Universal input voltage with active power factor correction e Fan speed control for low noise and extended fan life 8 Series N5700 User s Guide Programmable Functions Model Ratings Series N5700 User s Guide The Agilent N5700 DC Power Supplies At a Glance Output voltage and current setting Output voltage and current measurement Output voltage and current trigger setting Output On Off control Over current protection setting Over voltage protection setting and readback Under voltage limit setting and readback Start up mode either last setting or reset mode Status register setting and readback Bus trigger e Calibration Model Voltage Current Model Voltage Current Range Range Range Range N5741A 0 6V 0 100A N5761A 0 6V 0 180A N5742A 0 8V 0 90A N5762A 0 8V 0 165A N5743A 0 12 5V 0 60A N5763A 0 12 5V 0 120A N5744A 0 20V 0 38A N5764A 0 20V 0 76A N5745A 0 30V 0 25A N5765A 0 30V 0 50A N5746A 0 40V 0 19A N5766A 0 40V 0 38A N5747A 0 60V 0 12 54 N5767A 0 60V 0 25A N5748A 0 80V 0 9 5A N5768A 0 80V 0 19A N5749A 0 100V 0 7 5A N5769A 0 100V 0 15A N5750A 0 150V 0 5A N57
39. rating can be connected in series to provide up to two times the output voltage capability Because the current is the same through each element in a series circuit outputs connected in series must have equivalent current ratings Otherwise the higher rated output could potentially damage the lower rated output by forcing excessive current through it under certain load conditions Refer to the following figures for typical series connections using either local or remote sensing It is recommended that diodes be connected in parallel with each output to prevent reverse voltage during start up sequence or in case one unit shuts down Each diode should be rated to at least the rated output voltage and output current of the power supply Series N5700 User s Guide Series Connections as S H LS POWER SUPPLY POWER SUPPLY LS LS POWER Diodes are POWER SUPPLY user supplied SUPPLY LS LS_ S J Local Sensing Remote Sensing Refer to the following figure for typical connections of series power supplies configured as a positive and a negative output LS S POWER SUPPLY SUPPLY LS_ S CAUTION This caution applies when using analog voltage programming with series connected power supplies The analog programming circuits of these power supplies are referenced to the negative sense S potential Therefore the analog voltage circuits used to control each series connected unit must be separated
40. repair facility see Appendix D Equipment Required Type Digital Voltmeter Current Monitor Load Resistor Electronic Load GPIB Controller Oscilloscope RMS Voltmeter Differential Amplifier Terminations Variable voltage xfmr or AC source The equipment listed in the following table or the equivalent to this equipment is required for the calibration and performance tests A test record sheet may be found at the back of this section Specifications Resolution 10 nV 1V Readout 8 1 2 digits Accuracy 20 ppm 15 A 0 192 0 04 TC 5ppm C 100 A 0 0122 0 04 TC 5ppm C 300 A 0 00122 0 04 TC 5ppm C For 750 W models 0 069 0 09 0 21 0 53Q 1 209 2 110 4 809 8 420 13 33Q 30 0Q 120Q 462Q all resistors 1kW minimum For 1500 W models 0 0302 0 04 0 109 0 269 0 600 1 050 2 409 4 210 6 67Q 15 09 60 231Q all resistors 2kW minimum 150 V 100 A minimum for Models N5741 N5750A 150 V 180 A minimum for Models N5761 N5770A Full GPIB capabilities for calibrating the unit over the GPIB Sensitivity 1 mV Bandwidth Limit 20 MHz Probe 1 1 with RF tip True RMS Bandwidth 20 MHz Sensitivity 100 uV Bandwidth 20 MHz 1 50Q BNC termination 2 50 1 8 W termination resistors Adjustable to highest rated input voltage range Power 2000 VA Recommended Model Agilent 3458A or equivalent Guildline 9230 15 Guildline 9230 100 Guildline 9230 300 Agi
41. supply is a Safety Class 1 instrument which means it has a protective earth terminal That terminal must be connected to earth ground through power source equipped with a ground receptacle Refer to the Safety Summary page at the beginning of this guide for general safety information Before installation or operation check the power supply and review this guide for safety warnings and instructions Safety warnings for specific procedures are located at appropriate places throughout this Guide Environment WARNING Do not operate the instrument in the presence of flammable gasses or fumes The environmental conditions dimensions of the instrument as well as an outline diagram are given in Appendix A Basically the instrument should only be operated indoors in a controlled environment Do not operate the power supply in an area where the ambient temperature exceeds 40 C Agilent N5700 power supplies generate magnetic fields which may affect the operation of other instruments If your equipment is susceptible to magnetic fields do not position it adjacent to the power supply Airflow Fans cool the power supply by drawing air through the front and exhausting it out the back The instrument must be installed in a location that allows sufficient space of at least 10 cm 4 in at the front and back of the unit for adequate air circulation Series N5700 User s Guide 19 Installing the Unit 20 Rack Installation CAUTION
42. trigger source TRG This command generates a trigger when the trigger source is set to BUS The command has the same affect as the Group Execute Trigger lt GET gt command Series N5700 User s Guide 79 6 Programming Examples Output Programming Example 82 Trigger Programming Example 83 This chapter contains several remote interface example programs to help you develop programs for your own application Chapter 5 Language Reference lists the syntax for the SCPI Standard Commands for Programmable Instruments You have a royalty free right to use modify reproduce and distribute the example programs and or any modified version in any way you find useful provided that you agree that Agilent Technologies has no warranty obligations or liability for any example programs The example programs are in Microsoft Visual BASIC 6 0 using the VISA COM IO library You must first load the VISA COM library to use these examples The VISA COM IO library is available with version M or later of the Agilent IO libraries for Windows Before using the example code in Visual BASIC you must reference two VISA COM objects In Visual BASIC go to Projects gt References and select Agilent VISA COM Resource Manager 1 0 filename AgtRM dll and VISA COM 1 0 Type Library filename VisaCom tlb To use this sample code in Visual Basic NET see the VISA COM documentation to reference VISA COM in a Visual BASIC project Copy the code prov
43. 0 power supplies support remote interface communication using a choice of three interfaces GPIB USB and LAN All three interfaces are live at power on Detailed information on configuring the remote interfaces is included in the USB LAN GPIB Interfaces Connectivity Guide document located on the CD ROM included with this manual GPIB Interface The following steps will help you quickly get started connecting your instrument to the General Purpose Interface Bus GPIB 1 Ifyou do not have a GPIB card installed in your computer turn off your computer and install the GPIB interface card 2 If you do not have the Agilent I O Library software installed on your computer install the I O Library software from the CD ROM included with this manual 3 Connect your instrument to the GPIB card using a GPIB interface cable Observe the following precautions The total number of devices including the GPIB interface card is no more than 15 The total length of all cables used is no more than 2 meters times the number of devices connected together up to a maximum of 20 meters Do not stack more than three connector blocks together on any GPIB connector Make sure all connectors are fully seated and the lock screws are firmly finger tightened 4 Set the power supply s GPIB address The power supply is shipped with its GPIB address set to 5 Use the front panel controls if you need to change the GPIB address a If the front panel R
44. 00 400 200 80 26 2 0 1564 1200 600 300 125 40 0 0 0983 2000 1000 500 200 68 23 Connecting the Load 24 Cross section Resistance Maximum length in meters to limit voltage to 1 V mm2 Q kilometer for5A for10A for20A for 50A for 150A 2 5 8 21 24 0 12 0 6 0 2 4 0 8 4 5 09 39 2 18 6 9 8 4 0 1 4 6 3 39 59 0 29 4 14 8 5 8 2 0 10 1 95 102 51 2 25 6 10 2 3 4 16 1 24 160 80 0 40 0 16 0 5 4 25 0 795 250 125 62 0 25 2 8 4 35 0 565 354 177 88 0 35 4 11 8 Load Connections for 6V to 60V Models SHOCK HAZARD Hazardous voltages may exist at the outputs and the load connections when using a power supply with a rated output greater than 40V To protect personnel against accidental contact with hazardous voltages ensure that the load and its connections have no accessible live parts Ensure that the load wiring insulation rating is greater than or equal to the maximum output voltage of the power supply CAUTION Ensure that the load wiring mounting hardware does not short the output terminals Heavy connecting cables must have some form of strain relief to prevent loosening the connections or bending the bus bars All load wires should be properly terminated with wire terminals securely attached Do not use unterminated wires for load connections at the power supply The following figures illustrate how to connect the load wires to the power supply bus bars as well as how to mount the bus bar shield to the chassis Wir
45. 00 User s Guide Parallel Connections pair As short as possible MASTER POWER SUPPLY Remote Sensing One of the units operates as a master and the remaining units are slaves The slave units operate as controlled current sources following the master output current In remote operation only the master unit can be programmed by the computer while the slave units may be connected to the computer for voltage current and status readback only It is recommended that each unit supplies only up to 95 of its current rating because of the imbalance that may be caused by cabling and connections voltage drops Setting up the Master Unit Connect the sensing circuit for either local or remote sensing as shown in the previous figures Set the master unit output voltage to the desired voltage Program the current limit to the desired load current limit divided by the number of parallel units During operation the master unit operates in constant voltage mode regulating the load voltage at the programmed output voltage Setting up the Slave Units Series N5700 User s Guide Set the rear panel setup switch SW1 position 2 to it s up position Connect J1 pin 10 Current Program of the slave unit to J1 pin 25 Parallel of the master unit The output voltage of the slave units should be programmed higher than the output voltage of the master unit to prevent interference with the master unit s control The current limit of each u
46. 10 mm 0 4 in longer than the other wires Strip 14 mm 0 55 in at the end of each of the wires 21 Connecting the Line Cord e Unscrew the base of the strain relief from the helix shaped body Insert the base through the outside opening in the AC input cover and screw the locknut securely 11 14 in Ib into the base from the inside e Slide the helix shaped body onto the AC cable Insert the stripped wires through the strain relief base until the outer cable jacket is flush with the edge of the base Tighten the body 16 18 in Ib to the base while holding the cable in place Now the cable is securely fastened inside the strain relief Refer to the following figure Screw on Locknut e Route the AC wires to the input connector terminals as required To connect the wires loosen the terminal screw insert the stripped wire into the terminal and tighten the screw securely to between 4 4 5 3 in lb e Route the wires inside the cover to prevent pinching Fasten the cover to the unit using the M3 x 8 flat head screws provided Refer to the following figure for details MO Dn DA M3x8 a Pa Flat Head Screws Se lt 2 places N XN a XN Assembled Strain Relief 22 Series N5700 User s Guide Connecting the Load Connecting the Load SHOCK HAZARD Turn off AC power before making rear panel connections All wires and straps must be properly connected with screws securely ti
47. 3 mV Front Panel Display Readback Both Vout 6 mV Vout 6 mV High Voltage Vout Both 5 994 V 6 006 V Front Panel Display Readback Both Vout 12 mV Vout 12 mV CV Load Effect Both 2 6 mV 2 6 mV CV Source Effect Both 2 6 mV 2 6 mV CV Ripple and Noise peak to peak Both N A 60 mV rms Both N A 8 mV Transient Response Voltage 1 2ms Both 30 mV 30 mV Current Programming amp Readback Minimum Current lout N5741A 100 mA 100 mA N5761A 180 mA 180 mA Front Panel Display Readback N5741A lout 300 mA lout 300 mA N5761A lout 540 mA lout 540 mA High Current lout N5741A 99 8 A 100 2 A N5761A 179 64 A 180 3 A Front Panel Display Readback N5741A lout 400 mA lout 400 mA N5761A lout 720 mA lout 720 mA CC Load Effect N5741A 25 mA 25 mA N5761A 41 mA 41 mA CC Source Effect N5741A 12 mA 12 mA N5761A 20 mA 20 mA Test Description N5741A Settings N5761A Settings Voltage Programming amp Readback Min Voltage OV 0A 0OV 0A Voltage Programming amp Readback High Voltage 6V 0A 6V 0A CV Load Effect Source Effect Ripple and Noise 6V 100A 6 V 180A Transient Response 6 V from 10 A to 90A 6 V from 18 A to 172A Current Programming amp Readback Min Current 0A 6V 0A 6V Current Programming amp Readback High Current 100 A 6 V 180 A 6 V CC Load Effect Source Effect 100 A 6 V 180 A 6 V Load Requirements N5741A N5761A Current shunt 0 010 100A 0 0010 300A Agilent N3300 Electronic load modules 2
48. 6 external voltage 45 terminals 45 AUT 10 AUTO IP 55 auto restart 43 calibration 111 current programming and measurement 112 equipment 92 procedure 111 voltage programming and measurement 111 calibration commands 66 CAL CURR 66 CAL DATA 66 CAL DATE 66 CAL LEV 66 CAL PASS 66 CAL STAT 67 CAL VOLT 67 caution 3 cleaning 20 combining commands common commands 61 from different subsystems 60 root specifier 60 common commands 65 CLS 74 ESE 75 ESR 75 IDN 77 OPC 75 OPT 78 RCL 78 RST 78 SAV 78 SRE 76 Series N5700 User s Guide STB 76 TST 78 WAI 76 TRG 79 common mode current 30 compatibility command summary 123 differences 122 connections 6V to 60V models 24 80V to 600V models 25 analog 14 J1 34 J2 26 multiple load 28 parallel 30 sense 13 series 32 series diode 32 constant current CC CC 10 check 37 load effect 97 mode 38 source effect 98 constant voltage CV check 36 CV 10 load effect 94 mode 38 noise 95 source effect 95 CURRENT 10 current monitoring external 47 current programming accuracy 97 current readback accuracy 97 current shunt 93 CV CC crossover 39 CV CC signal 39 daisy chain shut down 44 damage 19 DC AMPS 10 DC VOLTS 10 Default Gateway 55 125 Index device clear 63 DHCP 54 DNS 55 Domain 56 electronic load 93 enable disable terminals 43
49. 70A 0 150V 0 10A N5751A 0 300V 0 2 5A N5771A 0 300V 0 5A N5752A 0 600V 0 1 3A N5772A 0 600V 0 2 5A 9 The Front Panel At a Glance The Front Panel At a Glance POWER 9 1 VOLTAGE knob Voltage function Adjusts the output voltage the over voltage protection level and the under voltage limit If over voltage protection or under voltage limits have been set you cannot program the output voltage outside those limits GPIB address Selects the GPIB address when REM is pressed and held 2 CV indicator When lit indicates that the unit is operating in constant voltage mode with the output voltage being held constant 3 DC VOLTS display LED display that normally displays the voltage measured at the sense terminals When LIMIT is pressed the display indicates the programmed voltage setting When OVP UVL is pressed the display indicates either the OVP or UVL setting When REM is pressed and held the display indicates the GPIB address 4 DC AMPS display LED display that normally displays the current measured at the output terminals When LIMIT is pressed the display indicates the programmed current setting 5 CC indicator When lit indicates that the unit is operating in constant current mode with the output current being held constant 6 CURRENT knob Adjusts the output current 7 OUT ON button Output function Press OUT ON to turn the output on or off Press OUT ON to reset
50. A 5mA 2 5m 1 3mA Temperature Coefficient after a 30 minute warm up Voltage and Current 100PPM C from rated output voltage or current Analog Programming and Monitoring Vout voltage 0 100 0 5V 10V user selectable Accuracy amp linearity 0 5 of rated Vout lout voltage 0 100 0 5V 10V user selectable Accuracy amp linearity 1 of rated lout Vout resistance 0 100 0 5kQ 10kQ user selectable Accuracy amp linearity 1 of rated Vout lout resistance 0 100 0 5kQ 10kQ user selectable Accuracy amp linearity 1 5 of rated lout lout monitor 0 5V 10V user selectable Accuracy 1 Vout monitor 0 5V 10V user selectable Accuracy 1 On Off control Electrical voltage 0 6V 2 15V or dry contact user selectable logic PS OK signal 5V OK OV FAIL 500Q series resistance CV CC signal CV TTL high 4 5V source current 10mA CC TTL high 4 5V sink current 10mA Enable Disable Dry contact Open Off Short On Maximum voltage at terminal 6V Series N5700 User s Guide 87 Supplemental Characteristics Agilent Models N5741A N5752A and N5761A N5772A Model V rating 6V 8V 12 5V 20V 30V 40V 60V 80V 100V 150V 300V 600V Series and Parallel Capability Parallel operation Up to 4 units can be connected in master slave mode with single wire current balancing Series operation Up to 2 units can be connected using external protection diodes Output Terminal Isolation 6V to 60V uni
51. A suffix was incorrectly specified for a numeric parameter Suffix too long The suffix contains more than 12 characters Suffix not allowed A suffix is not supported for this command Character data error Generic character data error Series N5700 User s Guide 117 Error Messages 118 141 144 148 150 151 158 160 161 168 170 171 178 200 220 221 222 223 224 225 226 230 Command Errors continued Invalid character data Either the character data element contains an invalid character or the element is not valid Character data too long The character data element contains more than 12 characters Character data not allowed A discrete parameter was received but a string or numeric parameter was expected String data error Generic string data error Invalid string data An invalid character string was received Check that the string is enclosed in quotation marks String data not allowed A character string was received but is not allowed for this command Block data error Generic block data error Invalid block data The number of data bytes sent does not match the number of bytes specified in the header Block data not allowed Data was sent in arbitrary block format but is not allowed for this command Expression error Generic expression error Invalid expression data The expression data elemen
52. AMP part number 91232 1 or euivalent Manual pistol grip tool Handle AMP p n 58074 1 Head AMP p n 58063 1 CAUTION Pins 12 22 and 23 of J1 are connected internally to the negative sense S potential of the power supply Do not attempt to bias any of these pins relative to the negative sense Use an isolated ungrounded programming source to prevent ground loops and to maintain the isolation of the power supply when programming from J1 Chapter 3 describes how to configure the J1 connector when using it to program the output voltage and current Series N5700 User s Guide Series N5700 User s Guide 3 Operating the Power Supply Locally Turn On Check Out 36 Normal Operation 38 Protection Functions39 Output On Off Control 42 Analog Programming of Output Voltage and Current 44 This chapter contains examples on how to operate your power supply from the front panel A check out procedure is included to let you verify that the power supply is operating properly Additionally information about programming the power supply using the J1 analog programming connector is also provided The simple examples discussed in this chapter show you how to program output voltage and current functions protection functions output on off functions safe start and auto restart analog programming of voltage and current front panel locking Refer to chapters 4 and 5 for information on programming your power supply
53. Agilent Technologies System DC Power Supply Series N5700 User s Guide ae Agilent Technologies Legal Notices Agilent Technologies Inc 2004 No part of this document may be photocopied reproduced or translated to another language without the prior agreement and written consent of Agilent Technologies Inc as governed by United States and international copyright laws The material contained in this document is provided as is and is subject to being changed without notice in future editions Further to the maximum extent permitted by applicable law Agilent disclaims all warranties either express or implied with regard to this manual and any information contained herein including but not limited to the implied warranties of merchantability and fitness for a particular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connection with the furnishing use or performance of this document or of any information contained herein Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms the warranty terms in the separate agreement shall control Manual Editions Manual Part Number 5969 2917 Edition 2 July 2004 Printed in Malaysia Reprints of this manual containing minor corrections and updates may have the same printing date Revised editions are identified by a new pr
54. Check if unit is installed next to heat generating equipment Check OCP setting and load current Poor load regulation Front panel CV LED is on Are sense wires properly connected Connect sense wires according to instructions in chapter 2 Front panel controls are nonfunctional Series N5700 User s Guide Is the power supply in Local Lockout mode Turn off the POWER switch and wait until the display turns off Turn on the POWER switch and press the REM LOC button 115 Error Messages Error Messages 116 Displaying the SCPI error queue Error List Error 100 101 102 104 114 203 204 205 206 209 302 351 352 353 354 The entire error queue is read then emptied using the following command SYST ERR The following table documents the various error messages that the power supply supports Device dependent Errors these errors set Standard Event Status register bit 3 No error This is the response to the ERR query when there are no errors Too many channels You have specified more channels than are installed in the mainframe Calibration state is off Calibration is not enabled The instrument will not accept calibration commands Calibration password is incorrect The calibration password is incorrect Bad sequence of calibration commands Calibration commands have not been entered in the proper sequence CAL DATE must be yyyy mm dd The calibration date must be entered in th
55. Constant Voltage Mode When the power supply is operating in constant voltage mode the CV indicator on the front panel illuminates Adjustment of the output voltage can be made when the output is enabled On or disabled Off When the output is enabled simply rotate the voltage knob to program the output voltage When the output is disabled press the LIMIT button and then rotate the voltage knob The DC VOLTS display will show the programmed voltage for 5 seconds after the adjustment has been completed and then indicate OFF The voltage knob can be set to coarse or fine resolution Press the FINE button to select finer resolution The FINE indicator turns on If you cannot adjust the voltage to the value that you desire the power supply may be operating at its current limit Check the load condition and the current limit setting Also the voltage cannot be programmed lower than about 5 above the UVL setting or higher than about 5 below the OVP setting Constant Current Mode 38 When the power supply is operating in constant current mode the CC indicator on the front panel illuminates Adjustment of the output current limit can be made when the output is enabled On or disabled Off When the output is enabled and in constant current mode simply rotate the current knob to program the current limit If the output is in constant voltage mode press the LIMIT button and then rotate the current knob The DC AMPS display wil
56. EM indicator is illuminated press the REM button to put the power supply into local mode b Press and hold the REM button for about three seconds The DC VOLTS display will show the present GPIB address c To change the GPIB address turn the voltage knob until the desired GPIB address appears in the display Valid GPIB addresses are in the range of 0 to 30 5 Configure the GPIB interface card Use IO Config to configure the installed GPIB interface card s parameters 6 Use an application such as VISA Assistant to verify communications with instruments via the GPIB interface 50 Series N5700 User s Guide Configuring the Interface USB Interface The following steps will help you quickly get started connecting your instrument to the Universal Serial Bus USB 1 Ifyou do not have the Agilent I O Library software installed on your computer install the I O library software from the CD ROM included with this manual 2 Connect your instrument to the USB port on your computer It may take several seconds for the computer to recognize the instrument When the instrument is recognized your computer will display a dialog box labeled Assign USB device alias 3 If desired you can supply a new alias name in the Alias name field The Alias name can be used as a substitute for the USB ID string also referred to as the Visa Resource Name which can be quite lengthy The Alias name will appear in the Preferred field The USB ID string
57. Ensure that the screws used to attach the rack slide kit do not penetrate more than 6 mm into the sides of the unit Do not block the air intake at the front of the unit or the exhaust at the rear of the unit The Agilent N5700 power supplies can be mounted in a standard 19 inch rack panel or cabinet To install the power supply in a rack 1 Use the front panel rack mount brackets to install the power supply in the rack 2 Use a support bracket to provide adequate support for the rear of the power supply 3 If using rack mount slides use Agilent N5740A Rack mount Slide Kit to install the unit in a standard 19 inch equipment rack Refer to the following figure for assembly instructions Use three 10 32 x 0 38 in max screws at each side To prevent internal damage use the specified screw length only amp WARNING SHOCK HAZARD To prevent electric shock unplug the unit before cleaning Use a dry cloth or one slightly dampened with water to clean the external case parts Do not attempt to clean internally Series N5700 User s Guide Connecting the Line Cord Connecting the Line Cord WARNING SHOCK HAZARD The power cord provides a chassis ground through a third conductor Be certain that your power outlet is of the three conductor type with the correct pin connected to earth ground FIRE HAZARD Use only the power cord that was supplied with your instrument Using other types of power cords may cause o
58. Items Supplied 750 W Models 1500 W Models N5741A N5749A N5750A N5752A N5761A N5769A N5770A N5772A Option Description Item Description N5740A Rack mount Slide Kit for installing in system II style cabinets Item Description Power Cord A power cord appropriate for your location Sense Connector Analog connector Shield assembly Strain relief assembly Documentation Set 750W units are supplied with terminated power cords 1500W units are supplied with unterminated power cords A 5 pin connector for local remote sense connections A DB25 subminiature connector plug for analog control connections A safety shield for the output terminal connections A strain relief assembly for unterminated power cords only provided for 1500W units Contains User s Guide and CD ROM CD ROM contains Agilent 1 0 library Setup utility GPIB LAN USB Interfaces Connectivity Guide User s Guide Series N5700 User s Guide Inspecting the Unit Inspecting the Unit When you receive your power supply inspect it for any obvious damage that may have occurred during shipment If there is damage notify the shipping carrier and nearest Agilent Sales and Service Office immediately Refer to Appendix C for more information Until you have checked out the power supply save the shipping carton and packing materials in case the unit has to be returned Installing the Unit Safety Considerations This power
59. Load Requirements N5745A N5765A Current shunt 0 01Q 100 A 0 01Q 100 A Agilent N3300 Electronic load modules 2 N3305A 3 N3305A Fixed Resistor for CV Ripple and Noise 1 20Q 1kW 0 6002 2kW 103 Verification 104 Test Record Form Agilent N5746A and N5766A Agilent N5746A and N5766A Report No Date Description Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 20 mV 20 mV Front Panel Display Readback Both Vout 40 mV Vout 40 mV High Voltage Vout Both 39 96 V 40 04 V Front Panel Display Readback Both Vout 80 mV Vout 80 mV CV Load Effect Both 6 mV 6 mV CV Source Effect Both 6 mV 6 mV CV Ripple and Noise peak to peak Both N A 60 mV rms Both N A 8 mV Transient Response Voltage 1ms Both 200 mV 200 mV Current Programming amp Readback Minimum Current lout N5746A 19 mA 19 mA N5766A 38 mA 38 mA Front Panel Display Readback N5746A lout 57 mA lout 57 mA N5766A lout 114 mA lout 114 mA High Current lout N5746A 18 962 A 19 038 A N5766A 37 924 A 38 076 A Front Panel Display Readback N5746A lout 76 mA lout 76 mA N5766A lout 152 mA lout 152 mA CC Load Effect N5746A 8 8 mA 8 8 mA N5766A 12 6 mA 12 6 mA CC Source Effect N5746A 3 9 mA 3 9 mA N5766A 5 8 mA 5 8 mA Test Description N5746A Setting N5766A Setting Voltage Programming amp Readback Min Voltage OV 0A 0OV 0A Voltage Programming
60. Lp lt 70 dB A Am Arbeitsplatz Normaler Betrieb Nach EN 27779 Typpriifung AC Input Nominal Input 100 240 VAC 50 60Hz Input Current 750W 10 5A 100 VAC nominal 5A 200 VAC nominal Input Current 1500W 21A 100 VAC nominal 11A 200 VAC nominal Input Range 85 265 VAC 47 63 Hz Power Factor 0 99 at nominal input and rated output power Efficiency 76 87 for 750W units 77 88 for 1500W units Inrush Current lt 25A for 750W units lt 50 A for 1500W units 88 Series N5700 User s Guide Outline Diagram Outline Diagram er COLTAGE_DC VOLTS DC AMPS CURRENT p rn o SS Ss OVP Peor Re unt UVL Se Aa of ON TE oO 43 6mm 482 8 1 0mm 422 8 1 0mm lt 101100 Ethernet a or Lun ks A ra Ie D SsscoC leo Q 08 ol O JOQ IC XO Qo C gt gt 992g 5 0 8 O O GeO OC _ 3 O am CPB J o o CH i 3 0 D 0 0 O2 O gt IMC p am s 2 c lon amfa 5 2 2 i OES AC INPUT f 57 8 0 5 92 0 0 5 92 0 0 5 G 433 1 0mm Strain Relief Detail Bus Bar Detail 1500W Models 6V to 60V Models 30 0mm 8 5mm NOTES Holes marked A are for ch
61. P IPAddress 169 254 57 Subnet Mask 255 255 255 Default Gateway 0 0 0 Enable DHCP Enable Auto IP r DNS 141 121 202 Obtain DNS server from DHCP Name M Use Dynamic DNS Naming Service IV Use NetBIOS Naming Service Host Name A N57724 3L706 p Domain Domain Name r TCP Keep AliveT imeout IV Enable TCP Keep Alive r Enable Enable WEB Server Enable LAN 5 Enable the LAN and optionally the built in Web server using the applicable check boxes Series N5700 User s Guide 57 Configuring the Interface 6 Click the Set button to save all the settings information 7 Connect the LAN cable to your instrument and PC Reboot the instrument and then wait about 2 5 minutes before using the new LAN settings 8 View the LAN status settings located under the LAN Status tab The assigned IP addres and Hostname will appear on this screen 2 LAN Setup Utility for Agilent Technologies N57xxA Settings LAN Status Connections Model About Current IP Address 141 121 57 170 Current Subnet Mask 255 255 254 0 Current Host Name Host Name Source Domain Name Ethemet Address LAN Speed You can also use the Setup utility to view model specific information about your power supply Click the Model About tab to view the model number serial number active firmware version backup firmware version and output ratings Tips for the using the LAN interface 58 Using VISA U
62. Source Effect Both 10 mV 10 mV CV Ripple and Noise peak to peak Both N A 80 mV rms Both N A 8 mV Transient Response Voltage Ims Both 400 mV 400 mV Current Programming amp Readback Minimum Current lout N5748A 9 5mA 9 5mA N5768A 19 mA 19 mA Front Panel Display Readback N5748A lout 28 5 mA lout 28 5 mA N5768A lout 57 mA lout 57 mA High Current lout N5748A 9 481 A 9 519 A N5768A 18 962 A 19 038 A Front Panel Display Readback N5748A lout 38 mA lout 38 mA N5768A lout 76 mA lout 76 mA CC Load Effect N5748A 6 9 mA 6 9 mA N5768A 8 8 mA 8 8 mA CC Source Effect N5748A 2 95 mA 2 95 mA N5768A 3 9 mA 3 9 mA Test Description N5748A Setting N5768A Setting Voltage Programming amp Readback Min Voltage OV 0A 0OV 0A Voltage Programming amp Readback High Voltage 80V 0A 80V 0A CV Load Effect Source Effect Ripple and Noise 80 V 9 5 A 80V 19A Transient Response 80 V from 0 95 Ato 8 55 A 80 V from 1 9 A to 17 1 A Current Programming amp Readback Min Current 0 A 80 V 0 A 80 V Current Programming amp Readback High Current 9 5 A 80 V 19 A 80 V CC Load Effect Source Effect 9 5 A 80 V 19 A 80 V Load Requirements N5748A N5768A Current shunt 0 19 15A 0 01Q 100 A Agilent N3300 Electronic load modules 2 N3305A 3 N3305A Fixed Resistor for CV Ripple and Noise 8 42Q 1kW 4 210 2kW Series N5700 User s Guide Verification Test Record Form Agilent N5749A and N5769A
63. The output is either enabled or disabled according to its last setting Output On Off state UVL level Output voltage setting OCP setting Output current setting Locked Unlocked front panel OVP level Start up mode Daisy Chained Output Shut down POWER SUPPLY 1 It is possible to configure a multiple power supply system to shut down all the units when a fault condition occurs in one of the units SW1 setup switch 5 must be in the Down position to enable the daisy chain operation Other switches are unaffected by this setting If a fault occurs in one unit its Power Supply OK signal is set low and its display will indicate the fault The other units shut off with their displays indicating SO When the fault condition is cleared all units will recover according to their Safe Start or Auto Restart settings The following figure shows three units daisy chained the same connection method can be used with additional units The Shut Off and Power Supply OK signals are referenced to Chassis Common J1 pins 2 and 3 POWER SUPPLY POWER SUPPLY 2 3 J1 2 3 J1 16 J1 15 J1 2 3 J1 16 J1 15 J1 2 3 J1 16 J1 15 Supply OK Shut Off Supply OK Shut Off Supply OK Shut Off Analog Programming of Output Voltage and Current CAUTION J1 pin 12 pin 22 and pin 23 are internally connected to the negative sense terminal Do not reference these pins to any terminal other than the negative sense terminal as it may dama
64. alibration mode RST OUTP ON CAL STAT ON lt password gt Voltage Programming and Measurement Calibration Step 1 Connect the Agilent 3458A voltage input to an output Step 2 Select the full scale voltage programming range The value to program a range must be the maximum voltage of the range CAL VOLT lt voltage gt Step 3 Select the first voltage calibration point CAL LEV P1 111 Calibration 112 Step 4 Step 5 Step 6 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 OPC Measure the output voltage with the Agilent 3458A and enter the data CAL DATA lt data gt Select the second voltage calibration point CAL LEV P2 OPC Measure the output voltage with the Agilent 3458A and enter the data CAL DATA lt data gt Current Programming and Measurement Calibration Connect a precision shunt resistor to an output Connect the Agilent 3458A to measure the voltage across the shunt The shunt resistor should be suitable for measuring at least 120 of the power supply s rated full scale current Select the full scale current programming range The value to program a range must be the maximum current of the range CAL CURR lt current gt Select the first current calibration point CAL LEV P1 OPC Calculate the shunt current I V R and enter the data CAL DATA lt data gt Select the second current calibration point CAL LEV P2 OPC Calculate the shunt curr
65. alog State Voltage Prog Return Current Prog Return Current Monitor Parallel Connect Pin 1 to Pin 14 to enable the output Disconnect to disable the output Signal return for Pin 15 and Pin 16 Connected to chassis No connection Input for selecting between front panel or analog programming of the output Input for voltage or resistance programming of the output voltage Input for voltage or resistance programming of the output current Output for monitoring the output voltage Signal return for Pin 8 Pin11 Pin 13 and Pin 24 Connected internally to S Output for constant voltage constant current mode indication Connect Pin 14 to Pin 1 to enable the output Disconnect to disable the output Input for Shut Off control of the output Referenced to Chassis Common Output to indicate the power supply status Referenced to Chassis Common No connection Output for indication of local or analog programming mode Signal return for Pin 9 Connected internally to S Signal return for Pin 10 Connected internally to S Output for monitoring the output current Output for current balancing in parallel operation Series N5700 User s Guide SCPI Programming Commands At a Glance SCPI Programming Commands At a Glance Some optional commands have been included for clarity Chapter 6 contains a complete description of all programming commands Subsystem Commands SCPI Command ABORt CALibrate CURRent LEVe
66. an control the output over its entire range or a combination of variable resistor and series parallel resistors can control the output over a restricted portion of its range e Set the programming resistors to the desired resistance and turn the power supply on Adjust the resistors to change the power supply output Series N5700 User s Guide Analog Programming of Output Voltage and Current The analog control circuits let you set the output voltage and current limit up to 5 over the model rated maximum value The power supply will operate within the extended range however it is not recommended to operate the power supply over its voltage and current rating and performance in this region is not guaranteed SW1 switch 3 Voltage Programming Current programming J1 pin 9 J1 pin 10 Down default 0 5 kO 0 5 kO Up 0 10kO 0 10kO CURRENT LIMIT OUTPUT VOLTAGE PROGRAMMING PROGRAMMING PROGRAMMING PROGRAMMING RESISTOR RESISTOR 13 25 49 00 OPTIONAL SETS OPTIONAL SETS LOWER LIMIT LOWER LIMIT OPTIONAL SETS OPTIONAL SETS UPPER LIMIT UPPER LIMIT External Monitoring of Output Voltage and Current The J1 connector also provides analog signals for monitoring the output voltage and current Selection of the voltage range between 0 5Vor0 10 Vis made by SW1 setup switch 4 The monitoring signals represent 0 to 100 of the power supply output voltage and current rating The monitor outputs have a 500 Q series output resistan
67. and Unlocked front panel The display will cycle between LFP and UFP Releasing the LIMIT button while one of the modes is displayed selects that mode In Unlocked front panel mode the front panel controls are enabled to program and monitor the power supply parameters In Locked front panel mode the VOLTAGE and CURRENT knobs the OCP button and the OUT ON button are disabled The power supply will not respond to attempts to use these controls The display will show LFP to indicate that the front panel is locked The OVP UVL button remains active to preview the OVP and UVL setting The LIMIT button also remains active to preview the output voltage and current setting or to unlock the front panel This function operates independently of the SCPI SYST COMM RLST command If the front panel has been locked from the front panel it cannot be unlocked by SYST COMM RLST Conversely if the front panel has been locked by SYST COMM RLST it cannot be unlocked from the front panel Series N5700 User s Guide 41 Output On Off Control Output On Off Control OUT ON button The Output On Off control turns the power supply output on or off This can be done with the front panel OUT ON button or from the rear panel J1 connector With the output off adjustments can be made to the power supply or the load without shutting off AC power The OUT ON button can be pressed at any time to enable or disable the power supply output When the output is
68. and turn the output on after an OVP or OCP event has occurred Start up function Selects between Safe Start and Auto Restart modes Press and hold the OUT ON button to toggle between Safe Start and Auto Restart The display cycles between SAF and AU7 Releasing the OUT ON button while one of the modes is displayed selects that mode 8 OUT ON indicator When lit indicates that the output is enabled or on 10 Series N5700 User s Guide 9 REM button 10 REM indicator 11 OCP button 12 OCP indicator 13 OVP UVL button 14 LIMIT button 15 LIMIT indicator 16 FINE button 17 FINE indicator 18 PROT indicator 19 POWER switch Series N5700 User s Guide The Front Panel At a Glance Mode function Press REM to put the unit into local mode This button can be disabled with a Local Lockout command Address function Selects the GPIB address Press and hold the REM button for three seconds to set the address with the Voltage knob When lit indicates that the unit is in Remote mode Enable function Press OCP to turn over current protection on Press OCP again to turn over current protection off Reset OCP When an over current protection event occurs press the OUT ON button to enable the output and re arm over current protection When lit indicates that over current protection is enabled or on OVP function Press OVP UVL once to set the over voltage protection level with the V
69. assis slide mounting Use only screws designated 10 32x0 38 maximum Series N5700 User s Guide 89 B Verification and Calibration Verification 92 Calibration 111 The verification procedures described in this appendix verify that the power supply is operating normally and is within published specifications This appendix also includes calibration procedures for the Agilent N5700 power supplies Instructions are given for performing the procedures from a controller over the GPIB Perform the verification tests before calibrating your power supply If the power supply passes the verification tests the unit is operating within its calibration limits and does not need to be re calibrated Series N5700 User s Guide The recommended calibration interval for Agilent N5700 power supplies is one year 91 Verification Verification 92 Performance Calibration Verification procedures verify that the power supply is operating normally and is within published specifications There are two types of verification tests These tests verify that the power supply meets all of the specifications listed in Appendix A They can also be used to verify that the power supply is properly calibrated These procedures calibrate the power supply If the power supply fails any of the tests or if abnormal test results are obtained try calibrating the unit If calibration is unsuccessful return the unit to an Agilent Technologies
70. back High Current 7 5 A 100 V 15 A 100 V CC Load Effect Source Effect 7 5A 100V 15 A 100 V Load Requirements N5749A N5769A Current shunt 0 1Q15A 0 19 15A Agilent N3300 Electronic load modules 2 N3305A 3 N3305A Fixed Resistor for CV Ripple and Noise 13 33Q 1kW 6 67Q 2kW Series N5700 User s Guide 107 Verification 108 Test Record Form Agilent N5750A and N5770A Agilent N5750A and N5770A Report No Date Description Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 75 mV 75 mV Front Panel Display Readback Both Vout 150 mV Vout 150 mV High Voltage Vout Both 149 85 V 150 15 V Front Panel Display Readback Both Vout 300 mV Vout 300 mV CV Load Effect Both 17 mV 17 mV CV Source Effect Both 17 mV 17 mV CV Ripple and Noise peak to peak Both N A 100 mV rms Both N A 12 mV Transient Response Voltage 2ms Both 750 mV 750 mV Current Programming amp Readback Minimum Current lout N5750A 5 mA 5 mA N5770A 10 mA 10 mA Front Panel Display Readback N5750A lout 15 mA lout 15 mA N5770A lout 30 mA lout 30 mA High Current lout N5750A 4 99 A 5 01 A N5770A 9 98 A 10 02 A Front Panel Display Readback N5750A lout 20 mA lout 20 mA N5770A lout 40 mA lout 40 mA CC Load Effect N5750A 6 mA 6 mA N5770A 7 mA 7 mA CC Source Effect N5750A 2 5 mA 2 5 mA N5770A 3 mA 3 mA Test Description N5750A Setting N5770A
71. bit of the Questionable NTR register is set to 1 then a 1 to 0 transition of the corresponding bit of the Questionable Condition register causes that bit in the Questionable Event register to be set When a bit of the Questionable PTR register is set to 1 then a 0 to 1 transition of the corresponding bit in the Questionable Condition register causes that bit in the Questionable Event register to be set Ifthe same bits in both NTR and PTR registers are set to 1 then any transition of that bit at the Questionable Condition register sets the corresponding bit in the Questionable Event register Ifthe same bits in both NTR and PTR registers are set to 0 then no transition of that bit at the Questionable Condition register can set the corresponding bit in the Questionable Event register The Preset values are NTR 0 PTR 32767 This command causes the following actions on the status system Clears the Standard Event Status Operation Status Event and Questionable Status Event registers Clears the Status Byte and the Error Queue If CLS immediately follows a program message terminator lt NL gt then the output queue and the MAV bit are also cleared Series N5700 User s Guide ESE ESE ESR OPC OPC Series N5700 User s Guide Status Commands This command programs the Standard Event Status Enable register bits The programming determines which events of the Standard Event Status Event register
72. ce Make sure that the sensing circuit has an input resistance greater than 500 kQ or the accuracy will be reduced SW1 switch 4 Voltage J1 signal Signal function range connection Down default 0 5V J1 pin 11 Voltage Monitor J1 pin 24 Current Monitor Up 0 10V J1 pin 11 Voltage Monitor J1 pin 24 Current Monitor J1 pin 12 is the signal common for J1 pins 11 and 24 Series N5700 User s Guide 47 4 Operating the Power supply Remotely Configuring the Interface50 SCPI Commands an Introduction 59 This chapter contains information on how to configure the three remote interfaces that are provided on the back of the instrument In most cases you can connect your power supply to any one of these interfaces and be up and running with a minimum amount of configuration Detailed information on configuring the remote interfaces is included in the USB LAN GPIB Interfaces Connectivity Guide document located on the CD ROM included with this manual Series N5700 User s Guide This chapter also contains a brief introduction to the SCPI Programming language SCPI Standard Commands for Programmable Instruments is a programming language for controlling instrument functions over the GPIB SCPI is layered on top of the hardware portion of IEEE 488 2 The same SCPI commands and parameters control the same functions in different classes of instruments 49 Configuring the Interface Configuring the Interface The Agilent N570
73. connections to the unit before applying power Note the instrument s external markings described under Safety Symbols Ground the Instrument This product is a Safety Class 1 instrument provided with a protective earth terminal To minimize shock hazard the instrument chassis and cover must be connected to an electrical ground The instrument must be connected to the ac power mains through a grounded power cable with the ground wire firmly connected to an electrical ground safety ground at the power outlet Any interruption of the protective grounding conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury Fuses For continued protection against fire replace the line fuse only with a fuse of the specified type and rating normal blow time delay etc Do not use repaired fuses or short circuited fuseholders To do so could cause a shock or fire hazard Series N5700 User s Guide Do Not Operate in an Explosive Atmosphere Do not operate the instrument in the presence of flammable gases or fumes Do Not Remove the Instrument Cover Only qualified service trained personnel who are aware of the hazards involved should remove instrument covers Always disconnect the power cable and any external circuits before removing the instrument cover Do Not Modify the Instrument Do not install substitute parts or perform any unauthorized modi
74. e however it is not recommended to operate the power supply over its voltage and current rating and performance in this region is not guaranteed SW1 switch 3 Voltage Programming Current Programming J1 pin 9 J1 pin 10 Down default 0 5V 0 5V Up 0 10V 0 10V CURRENT LIMIT OUTPUT VOLTAGE PROGRAMMING PROGRAMMING Resistance Programming of Output Voltage and Current Resistances of 0 5 KQ or 0 10 kQ can be selected to program the output voltage and current limit from zero to full scale Internal current sources supply a 1mA current through the external resistors The voltage drop across the resistors is used as the programming voltage for the power supply To maintain the temperature stability specification of the power supply only use resistors that are stable and low noise with a temperature coefficient less than 50ppm Set the power supply to resistance programming as follows e Make sure that the power supply is turned off e Set SW1 setup switch 1 for voltage and 2 for current to the UP position e Set SW1 setup switch 3 to select programming resistance range according to the following table e Set SW1 setup switch 7 for voltage and 8 for current to the Up position to enable resistance programming e Connect a short between Jl pin 8 and J1 pin 12 see figure e Connect the programming resistors to the mating plug of J1 as shown in the following figure A variable resistor c
75. e numeric format yyyy year mm month dd date Compatibility function not implemented The requested compatibility function is not available NVRAM checksum error A checksum error has occurred in the instrument s nonvolatile random access memory NVRAM full The nonvolatile random access memory of the instrument is full File not found The internal calibration file or the internal channel attribute file was not found in NVRAM Output communications failure A hardware failure has occurred on the power supply Option not installed The option that is programmed by this command is not installed VOLT setting conflicts with VOLT PROT setting Attempted to program the voltage above the over voltage protection setting VOLT PROT setting conflicts with VOLT setting Attempted to set the over voltage protection below the voltage setting VOLT setting conflicts with VOLT LIM LOW setting Attempted to program the voltage below the under voltage limit setting VOLT LIM LOW setting conflicts with VOLT setting Attempted to set the under voltage limit above the voltage setting Series N5700 User s Guide 100 101 102 103 104 105 108 109 110 111 112 113 114 120 121 123 124 128 130 131 134 138 140 Error Messages Command Errors these errors set Standard Event Status register bit 5 Command error Generic syntax erro
76. e terminal lug 2 places M8x15 screw 2 places washer 2 places Hex Nut 2 places Screws tightening torque 104 118 in lb Series N5700 User s Guide Connecting the Load Install the shield after you have finished connecting the load wires Shield Load Connections for 80V to 600V Models WARNING SHOCK HAZARD Hazardous voltages may exist at the outputs and the load connections when using a power supply with a rated output greater than 40V To protect personnel against accidental contact with hazardous voltages ensure that the load and its connections have no accessible live parts Ensure that the load wiring insulation rating is greater than or equal to the maximum output voltage of the power supply The 80V to 600V models have a four terminal wire clamp output connector The two left terminals are the positive outputs and the two right terminals are the negative outputs The connector specifications are as follows Wire Size AWG 18 to AWG 10 Stripping Length 10 mm 0 39 in Torque 6 5 7 in lb The following instructions describe how to connect the load wires to the power supply e Strip wires back approximately 10 mm 0 39 in e Loosen the connector terminal screws and insert the stripped wires into the terminal Tighten the terminal screw securely Positive Output Negative Output Return Load wires Series N5700 User s Guide 25 Output Vo
77. ecified as the rms or peak to peak output voltage in the frequency range specified in Appendix A 1 Turn off the power supply and connect the load resistor differential amplifier and an oscilloscope ac coupled to the output as shown in figure C Use the xx Q load for 750 W outputs use the xx Q load for 1500 W outputs 2 As shown in the diagram use two BNC cables to connect the differential amplifier to the and output terminals Each cable should be terminated by a 50 Q resistor The shields of the two BNC cables should be connected together Connect the output of the differential amplifier to the oscilloscope with a 50 Q termination at the input of the oscilloscope 3 Set the differential amplifier to multiply by ten divide by one and 1 Megohm input resistance The positive and negative inputs of the differential amplifier should be set to AC coupling Set the oscilloscope s time base to 5 ms div and the vertical scale to 10 mV div Turn the bandwidth limit on usually 20 or 30 MHz and set the sampling mode to peak detect 95 Verification 4 Program the power supply to program the output current to its maximum programmable value Imax and the output voltage to its full scale value and enable the output Let the oscilloscope run for a few seconds to generate enough measurement points On the Agilent Infinitum scope the maximum peak to peak voltage measurement is indicated at the bottom of the screen on the right side D
78. ed for this change to be effective This value is used to enable the instrument to determine if a client IP address is on the same local subnet When a client IP address is on a different subnet all packets must be sent to the Default Gateway If the Subnet Mask is changed the instrument must be rebooted for this change to be effective This value is the IP Address of the default gateway that allows the instrument to communicate with systems that are not on the local subnet as determined by the subnet mask setting A value of 0 0 0 0 indicates that no default gateway is defined If the Default Gateway is changed the instrument must be rebooted for this change to be effective DNS is an internet service that translates domain names into IP addresses This parameter indicates whether the IP address of the Domain Name System DNS server is obtained automatically or manually If the parameter is set to Auto the DNS server address is obtained from DHCP If the parameter is set to Manual the DNS server in the following field is used This value is the address of the Domain Name System DNS server If DHCP is disabled the DNS server parameter is needed for the instrument to be able to find and display its Hostname This parameter specifies the Naming service if any to be used to register the instrument NetBIOS indicates the instrument will be registered using the RFC NetBIOS naming protocol Dynamic DNS indicates the instrument wil
79. ed that still meets the application s need for unreachable client detection Smaller LAN Keepalive values will generate more keepalive probes network traffic using more of the available network bandwidth Check the Enable box to enable the Lan Keepalive function Allowed values 720 99999 seconds Series N5700 User s Guide Configuring the Interface Using the Setup Utility A Setup Utility that lets you configure the LAN settings of your instrument is provided on the CD ROM that is included with this manual Install and run this Setup Utility if you cannot configure the LAN interface as previously described in this section 1 Connect your power supply to your PC using either a USB a GPIB interface as previously described 2 Install the Setup utility from the CD ROM onto our PC Run the Setup utility be clicking on its icon 3 Select the interface you are using Click on the Connections tab and select either USB or GPIB 5 LAN Setup Utility for Agilent Technologies N57xxA Settings LAN Status Connections Model About Interface Type GPIB C USB VISA Interface Name GPIBO v GPIB Address 5 2 Alias Name UsbDevice3 v VISA Resource Name 4 Configure the following LAN address parameters These are located under the Settings tab For a description of these parameters refer to the previous section 2 LAN Setup Utility for Agilent Technologies N57xxA Settings LAN Status Connections Model About I
80. emote local state of the instrument according to the following settings The instrument is set to front panel control front panel keys are active The instrument is set to remote interface control front panel keys are active The front panel keys are disabled the instrument can only be controlled via the remote interface The remote local state can also be set by interface commands over the GPIB and some other I O interfaces When multiple remote programming interfaces are active the interface with the most recently changed remote local state determines the instrument s remote local state The remote local state is unaffected by RST or any SCPI commands other than SYSTem COMMunicate RLState At power on however the communications setting always returns to LOCal SYSTem ERRor This query returns the next error number and its corresponding message string from the error queue The queue is a FIFO first in first out buffer that stores errors as they occur As it is read each error is removed from the queue When all errors have been read the query returns 0 NO ERROR If more errors are accumulated than the queue can hold the last error in the queue will be 350 TOO MANY ERRORS see Appendix C for error codes SYSTem VERSion IDN Series N5700 User s Guide This query returns the SCPI version number to which the instrument complies The returned value is of the form YYYY V where YYYY represents the year and V i
81. ent I V R and enter the data CAL DATA lt data gt Exit Calibration mode CAL STAT OFF Series N5700 User s Guide Series N5700 User s Guide C Service Types of Service Available 114 Repackaging for Shipment 114 Operating Checklist 114 Error Messages 116 This chapter discusses the procedures involved for returning a failed instrument to Agilent Technologies for service or repair A procedure is included for diagnosing specific symptoms Actual repair is done through unit exchange 113 Types of Service Available Types of Service Available If your instrument fails during the warranty period Agilent Technologies will replace or repair it free of charge After your warranty expires Agilent Technologies will replace or repair it at a competitive price The standard repair process is whole unit exchange The replacement units are fully refurbished and are shipped with new calibration certificates Contact your nearest Agilent Technologies Service Center They will arrange to have your instrument repaired or replaced Repackaging for Shipment Operating Checklist If the unit is to be shipped to Agilent Technologies for service or repair be sure to Attach a tag to the unit identifying the owner and indicating the required service or repair Include the model number and full serial number Place the unit in its original container with appropriate packaging material for shipping Secure t
82. ent N5700 power supplies and the way they worked on the Agilent 603xA power supplies Differences The Agilent N5700 will respond to multiple queries It will not allow a space separator between numbers It will not allow a user to query information read back only a portion of the information send another command and finish reading back the information from the original query Sending a second query without reading the response to the first will generate an error Model number queries will only return the N5700 model numbers Status functions Serial Poll will be controlled by the SCPI status model and will not act like a 603xA power supply SRQ will be controlled by the SCPI status model Parallel poll will not work Settings The full scale limits will match the Agilent N5700 limits Measurement Floating point numbers returned by the instrument may not have exactly the same syntax or number of digits Calibration Calibration must be done in SCPI Storage states The Agilent N5700 units have 16 volatile states Series N5700 User s Guide Compatibility Command Summary Compatibility Command Summary Compatibility Command The following table documents the compatibility commands that the Agilent N5700 power supplies support All compatibility commands are accepted however some commands do nothing Description Similar SCPI Command ASTS CLR DLY lt delay gt DLY ERR FAULT
83. ent register The Event register is a read only register which stores latches all events that are passed by the Operation NTR and or PTR filter Reading the Operation Event register clears it The bit configuration of the Operation status registers is as follows Bit Position 15 11 10 9 8 7 6 5 4 0 Bit Value 1024 256 32 Bit Name CC CV WTG CC The output is in constant current CV The output is in constant voltage WTG The unit is waiting for a transient trigger STATus OPERation CONDition This query returns the value of the Operation Condition register That is a read only register which holds the live unlatched operational status of the power supply STATus OPERation ENABle lt NRf gt STATus OPERation ENABle 72 This command and its query set and read the value of the Operational Enable register This register is a mask for enabling specific bits from the Operation Event register to set the operation summary bit OPER of the Status Byte register This bit bit 7 is the logical OR of all the Operational Event register bits that are enabled by the Status Operation Enable register The Preset value 0 Series N5700 User s Guide Status Commands STATus OPERation NTR lt NRf gt STATus OPERation PTR lt NRf gt STATus OPERation NTR STATus OPERation PTR These commands set or read the value of the Operation NTR Negative Transition and PTR Positive Transition registers These register
84. environmental conditions 19 88 ERR 76 error messages 116 ESB 76 F features 8 FINE 11 front panel locking 41 functions 9 G GPIB address 50 GPIB interface 50 grounding 19 30 H history 2 Hostname 52 56 l impedance effects 29 inductive loads 29 initiate commands INIT 79 INIT CONT 79 inspection 19 IP Address 55 items supplied 18 J J1 connector 12 J2 connector 12 K Keepalive 56 keywords 60 126 LAN interface 52 setup utility 57 Telnet 58 VISA 58 VISA Assistant 58 LAN private 53 LAN site 52 last setting memory 44 LFP 11 LIMIT 11 load wiring 23 local voltage sensing 27 lock front panel 41 magnetic fields 19 master unit 31 MAV 76 measure commands 67 MEAS CURR 67 MEAS VOLT 67 message terminator 61 end or identify 61 newline 61 model numbers 18 model ratings 9 MSS 76 multiple load connections 28 multipliers 62 N numerical data formats 62 OCP 11 OPER 76 operating checklist 114 optional commands 59 options 18 OUP 11 OUT ON 10 outline diagram 19 output commands 68 OUTP 68 OUTP PON STAT 68 OUTP PROT CLE 68 Series N5700 User s Guide output grounding 30 output noise 29 output on off control 42 output programming example 82 over current check 37 over current protection 32 40 over temperature protection 41 over voltage check 36 over voltage protection 32 39 OVP 11 POWER 11
85. er supply The command path can be thought of as a string that gets inserted before each keyword within a message For the first command in a message the path is a null string For each subsequent command the 59 SCPI Commands an Introduction path is defined as the characters that make up the keywords of the previous command in the message up to and including the last colon separator An example of a message with two commands is OUTPut STATe ON PROTection CLEar which shows the use of the semicolon separating the two commands and also illustrates the command path concept Note that with the second command the leading keyword OUTPut was omitted because after the OUTPut STATe ON command the path became defined as OUTPut and thus the second command was interpreted as OUTPut PROTection CLEar In fact it would have been incorrect to include the OUTPut keyword in the second command because the result after combining it with the command path would be OUTPut OUTPut PROTection CLEar which would result in a syntax error Commands from Different Subsystems Message Unit In order to combine commands from different subsystems you need to be able to reset the command path to a null string within a message Beginning the command with a colon discards the previous path For example you could clear the output protection and check the status of the Operation Condition register in one message by using a root specifie
86. eries the measured output current The response is a real number Sets the output current Queries the present current setting The response is a real number Turns the output on or off On off equals 1 turns the output on equals 0 turns the output off Queries whether the output is turned on or off The response is OUT 1 on or OUT O off The front panel displays OFF when the output is off STAT OPER EVEN STAT QUES EVEN ESE RST SYST ERR STAT OPER STAT QUES ESE CURR PROT STAT CURR PROT STAT VOLT TRIG CURR TRIG IDN MEAS CURR CURR CURR OUTP STAT OUTP STAT Series N5700 User s Guide 123 Compatibility Command Summary Compatibility Command Description Similar SCPI Command OVP OVP RCL lt reg gt ROM RST SRQ lt setting gt SRQ STO lt reg gt STS TEST TRG UNMASK lt setting gt UNMASK VMAX VMAX VOUT VSET lt voltage gt VSET Sets the over voltage trip point Queries the present over voltage setting The response is a real number Recalls the saved settings There are up to 16 store recall states Saved settings must have been previously stored using the STO command Queries the revision date of the power supply s firmware Resets any tripped protection Generates error 203 The service request capability of the power supply is only supported using the SCPI commands Always returns 0 Stores t
87. es N5700 User s Guide Calibration Calibration Refer to the Equipment Required section in this appendix for a list of the equipment required for calibration A general outline of the procedure is as follows Enter the calibration mode by providing the correct password The password is set at the factory to the model number Once calibration has been entered the password can be changed by the user lf the password is incorrect an error occurs You do not have to do a complete calibration If appropriate you may calibrate only the voltage or current functions and then save the calibration constants As each calibration sequence is completed the instrument saves the calibration constants and begins using them Exit the calibration mode Note that a Reset command also sets the calibration state to OFF Calibration Procedure Unless instructed otherwise connect the sense terminal to the output and the sense terminal to the output When calibrating the unit using SCPI commands most calibration steps involve sending an OPC query to synchronize with the power supply s command completion before proceeding The response from the instrument must be read each time OPC is given The CAL LEV and CAL DATA commands may take several seconds to complete If a timeout occurs in your VISA application you may need to change the VI_ATTR_TMO_VALUE in the ViSetAttribute function Series N5700 User s Guide Enable C
88. fication to the product Return the product to an Agilent Sales and Service Office for service and repair to ensure that safety features are maintained In Case of Damage Instruments that appear damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel CAUTION A CAUTION notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly performed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met A WARNING notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly performed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met Safety Symbols Direct current Alternating current Both direct and alternating current Three phase alternating current Earth ground terminal Protective earth ground terminal Frame or chassis terminal Terminal is at earth potential Neutral conductor on permanently installed equipment Line conductor on permanently installed equipment On supply Off supply Standby supply Unit is not completely disconnected from ac mains when switch is off
89. formance This test measures the change in output voltage that results from a change in AC line voltage from the minimum to maximum value within the line voltage specifications 1 Turn off the power supply and connect the ac power line through a variable voltage transformer 2 Connect a DVM and an electronic load as shown in figure A Set the variable voltage transformer to nominal line voltage 3 Turn on the power supply and program the output current to its maximum programmable value Imax and the output voltage to its full scale value 4 Set the electronic load for the output s full scale current The CV annunciator on the front panel must be on If it is not adjust the load so that the output current drops slightly 5 Adjust the transformer to the low line voltage 85 VAC for 100 120 nominal line 170 VAC for 200 240 nominal line 6 Record the output voltage reading from the DVM 7 Adjust the transformer to the high line voltage 132 VAC for 100 120 nominal line 265 VAC for 200 240 nominal line 8 Record the output voltage reading on the DVM The difference between the DVM reading in steps 6 and 8 is the source effect which should not exceed the value listed in the test record card for the appropriate model under CV Source Effect CV Noise Test category performance Periodic and random deviations in the output combine to produce a residual AC voltage superimposed on the DC output voltage This residual voltage is sp
90. function signal current control Both Down default No effect Open Local Either one or both Up 0 or Short 0 0 6V Analog 1 or Open Open Local Voltage Programming of Output Voltage and Current CAUTION To maintain the isolation of the power supply and prevent ground loops use an isolated programming source when operating the unit using analog programming Series N5700 User s Guide Voltage programming sources of 0 5 V or 0 10 V can be used to program the output voltage and current limit from zero to full scale Set the power supply to analog voltage programming as follows Make sure that the power supply is turned off Set SW1 setup switch 1 for voltage and 2 for current to the Up position Set SW1 setup switch 3 to select programming voltage range according to the following table Make sure that SW1 setup switches 7 and 8 are set Down Connect a short between J1 pin 8 and J1 pin 12 See figure Connect the programming source to the mating plug of J1 as shown in the following figure Observe the correct polarity for the voltage source Set the programming sources to the desired levels and turn the power supply on Adjust the programming sources to change the power supply output 45 Analog Programming of Output Voltage and Current 46 The analog control circuits let you set the output voltage and current limit up to 5 over the model rated maximum value The power supply will operate within the extended rang
91. g 85 Performance Specifications Performance Specifications Agilent Models N5741A N5752A and N5761A N5772A Model V rating 6V 8V 12 5V 20V 30V 40V 60V 80V 100V 150V 300V 600V DC Output Ratings Voltage 6V 8V 12 5V 20V 30V 40V 60V 80V 100V 150V 300V 600V Current 750W 100A 90A 60A 38A 25A 19A 12 5A 9 5A 7 5A 5A 2 5A 1 3A Current 1500W 180A 165A 120A 76A 50A 38A 25A 19A 15A 10A 5A 2 6A Power 750W 600w 720w 750W 760w 750W 760w 750W 760w 750W 750W 750W W 780W Power 1500W 1080W 1320W 1500W 1520W 1500W 1520W 1500W 1520W 1500W 1500W 1500W 1560W Output Ripple and Noise CV p p 60mV 60mV 60mV 60mV 60mV 60mV 60mV 80mV 80mV 100mV 150mV 300mV CV rms 2 8mV 8mV 8mV 8mV 8mV 8mV 8mV 8mV 8mV 12mV 20mV 60mV Load Effect change from no load to full load Voltage 2 6mV 28mV 3 25mV 4mV 5mV 6mV 8mV 10mV 12mV 17mV 32mV 62mV Current 750W 2mA 23mA 17mA 12 6mA 10mA 88mA 7 5mA 6 9mA 6 5mA 6mA 5 5mA 5 26mA Current 1500W 41mA 38mA 29mA 20 2mA 15mA 12 6mA 10mA 88mA 8mA 7mA 6mA 5 5mA Source Effect change from 85 132 VAC input or 170 265 VAC input Voltage 2 6mV 2 8mV 3 25mV 4mV 5mV 6mV 8mV 10mV 12mV 17mV 32mV 62mV Current 750W 12mA 11mA 8mA 58mA 45mA 3 9mA 3 25mA 2 95mA 2 75mA 2 5mA 2 25mA 2 13mA Current 1500W 20mA 18 5mA 14mA 9 6mA 7mA 58mA 45mA 3 9mA 3 5mA 3mA 2 5mA 2 26mA Programming Accuracy Voltage 0 05 3mV 4mV 6 25mV 10mV 15mV 20mV 30mV 40mV 50mV 75mV 150mV 300mV Current 750W 0 1 100mA 90mA 60mA 38mA 25mA 19mA 12 5
92. ge the unit In Local mode the output voltage and current is programmed with the front panel VOLTAGE and CURRENT knobs or over the remote interface In Analog mode the output voltage and current can be programmed either by an analog voltage or by resistors connected to the rear panel J1 connector The J1 connector also provides monitoring signals for the output voltage and output current The programming range and monitoring signal range can be selected using the SW1 setup switch Series N5700 User s Guide Analog Programming of Output Voltage and Current With analog programming enabled you cannot program the output voltage or current using the front panel knobs or the remote interface However you can read back output voltage or current from the front panel or the remote interface Analog Programming Control Terminals J1 connector pin 8 accepts a TTL signal or an open short contact switch referenced to pin 12 to select between Local or Analog programming of the output voltage and current This function is enabled or disabled by SW1 setup switches 1 and 2 J1 connector pin 21 is an open collector output that indicates if the power supply is in Local mode or in Analog mode To use this output connect a pull up resistor to a voltage source of 30 VDC maximum Choose the pull up resistor so that the sink current will be less than 5mA when the output is in low state SW1 switch 1 and 2 J1 pin 8 J1 pin 21 Output voltage
93. ghtened Wire Size As further explained in this section the following factors should be considered when selecting wiring to connect the load to the power supply e Current carrying capacity of the wire e Insulation rating of the wire should be at least equivalent to the maximum output voltage of the power supply e Maximum wire length and voltage drop e Noise and impedance effects of the load wiring FIRE HAZARD To satisfy safety requirements select a wire size heavy enough not to overheat while carrying the power supply load current at the rated load or the current that would flow in the event the load wires were shorted whichever is greater Series N5700 User s Guide Along with conductor temperature you must also consider voltage drop when selecting wire sizes The following chart lists the resistance for various wire sizes and also the maximum lengths to limit the voltage drop to 1 0 volt for various currents Although the power supply will compensate for up to 5V in each load wire it is recommended to minimize the voltage drop to less than 1V to prevent excessive output power consumption from the power supply and poor dynamic response to load changes Wire size Resistance Maximum length in feet to limit voltage to 1 V AWG Q 1000 foot for5A for10A for20A for50A for 150A 14 2 526 80 40 20 8 2 12 1 589 120 60 30 12 3 4 10 0 9994 200 100 50 20 6 8 0 6285 320 160 80 32 10 6 0 3953 500 250 125 50 16 4 0 2486 8
94. guide to quickly become familiar with the essential components of the power supply It can also be used as a memory jogger for experienced users to quickly find a front rear panel function or programming command The Agilent N5700 DC Power Supplies At a Glance The Agilent N5700 DC Power Supplies At a Glance The Agilent Technologies Series N5700 System DC Power Supplies are general purpose switching power supplies with a wide variety of output voltage and current ratings These power supplies are power factor corrected and operate from a worldwide AC voltage range Output voltage and current are continuously displayed and LED indicators show the complete operating status of the power supply The front panel controls allow the user to set the output parameters over voltage under voltage and over current protection levels and preview the settings The rear panel includes the necessary connectors to control and monitor the power supply operation by analog signals or by the built in remote communication interfaces Output Features e Constant voltage constant current with automatic crossover e High resolution voltage and current front panel controls e Accurate voltage and current readback e Independent edge triggered external shut off and level triggered external enable disable e Parallel master slave operation with active current sharing e Remote sensing to compensate for voltage drop in load leads e Analog output
95. h Vout 1 2 V Vout 1 2 V CV Load Effect Both 62 mV 62 mV CV Source Effect Both 62 mV 62 mV CV Ripple and Noise peak to peak Both N A 300 mV rms Both N A 60 mV Transient Response Voltage 2ms Both 1V 1V Current Programming amp Readback Minimum Current lout N5752A 1 3 mA 1 3 mA N5772A 2 6 mA 2 6 mA Front Panel Display Readback N5752A lout 3 9 mA lout 3 9 mA N5772A lout 7 8 mA lout 7 8 mA High Current lout N5752A 1 2974 A 1 3026 A N5772A 2 5948 A 2 6052 A Front Panel Display Readback N5752A lout 5 2 mA lout 5 2 mA N5772A lout 10 4 mA lout 10 4 mA CC Load Effect N5752A 5 26 mA 5 26 mA N5772A 5 5 mA 5 5 mA CC Source Effect N5752A 2 13 mA 2 13 mA N5772A 2 26 mA 2 26 mA Test Description N5752A Setting N5772A Setting Voltage Programming amp Readback Min Voltage OV 0A 0OV 0A Voltage Programming amp Readback High Voltage 600 V 0A 600 V 0A CV Load Effect Source Effect Ripple and Noise 600 V 1 3 A 600 V 2 6 A Transient Response 200 V from 0 13 A to 1 17 A 200 V from 0 26 A to 2 34 A Current Programming amp Readback Min Current 0 A 600 V 0 A 600 V Current Programming amp Readback High Current 1 3 A 600 V 2 6 A 600 V CC Load Effect Source Effect 1 3 A 600 V 2 6 A 600 V Load Requirements N5752A N5772A Current shunt 0 19 15A 0 19 15A Use fixed resistor instead of load modules 4620 1kW 2319 2kW Fixed Resistor for CV Ripple and Noise 462Q 1kW 231Q 2kW Seri
96. he container with strong tape or metal bands If the original shipping container is not available place your unit ina container that will ensure at least 4 inches of compressible packaging material around all sides for the instrument Use static free packaging materials to avoid additional damage to your unit Agilent Technologies suggests that you always insure shipments If the power supply appears to be operating improperly use the following procedures to determine whether the power supply load or external circuits are the cause Turn on check out procedure Turn off the unit and remove all external connections to the instrument Follow the turn on checkout procedure in chapter 2 Trouble shooting guide 114 If you have encountered problems during the checkout procedure use the following guide to diagnose a specific symptom If the action does not remedy the problem return the unit for service Series N5700 User s Guide Symptom No output All displays and indicators are blank Check Is the AC power cord defective Is the AC input voltage within range Operating Checklist Action Check continuity Replace if necessary Check AC input voltage Connect to appropriate voltage source Output is present momentarily but shuts off quickly Display indicates AC Does the AC source voltage sag when a load is applied Check AC input voltage Connect to appropriate voltage source Output is presen
97. he front panel display The readings should be within the limits specified in the test record card for the appropriate model under Voltage Programming and Readback 0 V Program the output voltage to its full scale rating Record the output voltage readings on the DVM and the front panel display The readings should be within the limits specified in the test record card for the appropriate model under Voltage Programming and Readback Full Scale CV Load Effect Test category performance This test measures the change in output voltage resulting from a change in output current from full load to no load 1 Turn off the power supply and connect a DVM and an electronic load as shown in figure A Turn on the power supply and program the output current to its maximum programmable value Imax and the output voltage to its full scale value Set the electronic load for the output s full scale current The CV annunciator on the front panel must be on If it is not adjust the load so that the output current drops slightly Record the output voltage reading from the DVM Open the load and record the voltage reading from the DVM again The difference between the DVM readings in steps 4 and 5 is the load effect which should not exceed the value listed in the test record card for the appropriate model under CV Load Effect Series N5700 User s Guide Series N5700 User s Guide Verification CV Source Effect Test category per
98. he present power supply settings in the specified register There are up to 16 store recall states Queries the present status The response represents the sum of the binary weights of the status register bits The response is STS lt n gt Always returns 0 Causes the settings held with HOLD 1 to be executed Sets the bits in the mask register to the setting The setting is an integer that represents the sum of the binary weights of the bits The mask register operates in conjunction with the status and fault registers Queries the present setting of the mask register The response is UNMASK lt n gt Sets the soft programming limit for voltage Attempting to program the voltage above this setting will generate an error Queries the VMAX setting The response is VMAX lt n gt Queries the measured output voltage The response is a real number Sets the output voltage Queries the present voltage setting The response is a real number VOLT PROT LEV VOLT PROT LEV RCL IDN OUTP PROT CLE SRQ SRQ SAV STAT OPER COND STAT QUES COND TST STAT OPER NTR STAT OPER PTR STAT QUES NTR STAT QUES PTR STAT OPER NTR STAT OPER PTR STAT QUES NTR STAT QUES PTR MEAS VOLT VOLT VOLT 124 Series N5700 User s Guide Index ABOR 79 AC INPUT 12 88 1500 W units 21 750 W units 21 accessories 18 analog programming external resistance 4
99. ided in this chapter and call the subroutine for each example Series N5700 User s Guide Microsoft and Visual BASIC and Windows are U S registered trademarks of Microsoft Corporation 81 Output Programming Example Output Programming Example This program sets the voltage current over voltage and the over current protection When done the program checks for instrument errors and gives a message if there is an error Sub main_EZ Dim IDN As String Dim IOaddress As String Dim ErrString As String This variable controls the voltage Dim VoltSetting As Double This variable measures the voltage Dim MeasureVoltString As String This variable controls the current Dim CurrSetting As Double This variable controls the over voltage protection setting Dim overVoltSetting As Double This variable controls the over current protection Dim overCurrentOn As Long These variables are necessary to initialize the VISA COM Dim ioMgr As AgilentRMLib SRMCls Dim Instrument As VisaComLib Formatted1I0488 The following line provides the VISA name of the GPIB interface IOaddress GPIBO 5 INSTR Use the following line instead for LAN communication TOaddress TCPIPO 141 25 36 214 Use the following line instead for USB communication TOaddress USBO 2391 1799 US00000002 Tnitialize the VISA COM communication Set ioMgr New AgilentRMLib SRMCls Set Instrument New VisaComLib FormattedI0488
100. ification 92 verification equipment 92 VOLTAGE 10 voltage monitoring external 47 voltage programming accuracy 94 128 voltage readback accuracy 94 voltage sensing 26 warning 3 web URL s 4 wire sizes 23 Series N5700 User s Guide
101. in its IP address from DHCP If the computer had been connected to a site LAN it may still retain previous network settings from the site LAN If running Windows 2000 or XP wait 1 minute after disconnecting it from the site LAN before connecting it to the private LAN This allows Windows to sense that it is on a different network and restart the network configuration If running Windows 98 you may need to manually release the previous settings To do this open an MS DOS Command Prompt box and type ipconfig release_all ipconfig renew_all Make sure that NetBIOS over TCP IP is enabled on the PC In Windows 2000 this is located in Settings Network and Dial up Connections Local Area Connections Properties Internet Protocol TCP IP Advanced WINS Turn on the computer and your instrument Wait at least 2 5 minutes The computer and instrument each try to obtain an address from DHCP Since there is no DHCP server this fails and each assigns itself an IP address from the block 169 254 nnn nnn Use the default Hostname to communicate with the instrument Use the Web browser on your computer to communicate with the instrument s Web server Enter the instrument s LAN Hostname in the Address field of your Internet browser A N5741A D0001 is an example of a Host name You should see the instrument s home page If you need to reconfigure the LAN parameters click on the View amp Modify Configuration tab All LAN parameters can be rec
102. inting date Certification Agilent Technologies certifies that this product met its published specifications at time of shipment from the factory Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology to the extent allowed by the Institute s calibration facility and to the calibration facilities of other International Standards Organization members Exclusive Remedies THE REMEDIES PROVIDED HEREIN ARE THE CUSTOMER S SOLE AND EXCLUSIVE REMEDIES AGILENT TECHNOLOGIES SHALL NOT BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY Assistance This product comes with the standard product warranty Warranty options extended support contacts product maintenance agreements and customer assistance agreements are also available Contact your nearest Agilent Technologies Sales and Service office for further information on Agilent Technologies full line of Support Programs Technologies Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license Restricted Rights Legend If software is for use in the performance of a U S Government prime contract or subcontract Software is delivered and licensed as Commercial computer
103. ion Volts load lead 1V 1V 1V 1V 1 5V 2V 3V 4V 5V 5V 5V 5V Over voltage Protection Range 0 5 7 5V 0 5 10V 1 15V 1 24V 2 36V 2 44V 5 66V 5 88V 5 110V 5 165v 5 330V 5 660V Accuracy 0 06V 0 08V 0 125V 0 20V O030V O040V O060V 0 80V 1V 1 5V 3V 6V Output Ripple and Noise From 5Hz 1MHz at 10 to 100 of output voltage at full load for 6V units from 33 to 100 of output voltage CC rms 750W 200mA 180mA 120mA 76mA 63mA 48mA 383mA 29mA 23mA 18mA 13mA 8mA CC rms 1500W 360mA 330mA 240mA 152mA 125mA 95mA 75mA 5 mA 45mA 35mA 25mA 12mA Programming Resolution Measurement Resolution Voltage 0 72mV 0 96mV 1 5mV 24mV 3 6mV 48mV 7 2mV 9 6mV 12mV 18mV 36mV 72mV Current 750W 12mA 10 8mA 7 2mA 456mA 3mA 23mA 1 5mA 1 14mA 0 9mA 0 6mA 0 3mA_ 0 156mA Current 1500W 21 6mA 19 8mA 14 4mA 9 12mA mA 4 6mA 3mA 2 28mA 1 8mA 1 2mA 0 6mA_ 0 312mMA Front Panel Display Accuracy 4 digits 1 count Voltage 3mV 4mV 6 25mV 10mV 15mV 20mV 30mV 40mV 50mV 75mV 150mV 300mV Current 750W 50mA 45mA 30mA 19mA 12 5mA 95mA 6 25mA 4 75mA 3 75mA 2 5mA 1 25mA 6 5mA Current 1500W 90mA 82 5mA 60mA 38mA 25mA 19mA 12 5mA 9 5m 7 5mA 5mA 2 5m 1 3mA Temperature Drift over 8 hours after a 30 minute warm up with constant line load and temperature Voltage 3mV 4mV 6 25mV 10mV 15mV 20mV 30mV 40mV 50mV 75mV 150mV 300mV Current 750W 50mA 45mA 30mA 19mA 12 5mA 9 5mA 6 25mA 4 75mA 3 75mA 2 5mA 1 25mA 6 5mA Current 1500W 90mA 82 5mA 60mA 38mA 25mA 19mA 12 5mA 9 5m 7 5m
104. ivide this value by 10 to get the CV peak to peak noise measurement The result should not exceed the peak to peak limits in the test record form for the appropriate model under CV Ripple and Noise peak to peak Cf the measurement contains any question marks clear the measurement and try again This means that some of the data received by the scope was questionable 5 Disconnect the oscilloscope and connect an ac rms voltmeter in its place Do not disconnect the 50 Q termination Divide the reading of the rms voltmeter by 10 The result should not exceed the rms limits in the test record card for the appropriate model under CV Ripple and Noise rms Transient Recovery Time Test category performance This measures the time for the output voltage to recover to within the specified value following a 10 to 90 change in the load current 1 Turn off the power supply and connect the output as in figure A with the oscilloscope across the S and S terminals 2 Turn on the power supply and program the output current to its maximum programmable value Imax and the output voltage to its full scale value Do not program voltages greater than 200 VDC when testing the 300 and 600 volt models 3 Set the electronic load to operate in constant current mode Program its load current to 10 of the power supply s full scale current value 4 Set the electronic load s transient generator frequency to 100 Hz and its duty cycle to 50 5 Program
105. k to the command VOLTage VOLTage TRIGgered If a query contains a parameter place the query indicator at the end of the last keyword Observe the following precautions with queries Add a blank space between the query indicator and any subsequent parameter VOLTage TRIGgered MAX Set up the proper number of variables for the returned data Read back all the results of a query before sending another command to the power supply Otherwise a Query Interrupted error will occur and the unreturned data will be lost Common Commands Common commands generally control overall power supply functions such as reset status and synchronization All common commands consist of a three letter mnemonic preceded by an asterisk RST IDN SRE8 You can combine common commands with subsystem commands in the same message Use semicolons to separate the common command from the subsystem commands Common commands do not affect the command path you may insert them anywhere in the message voLTage TRIGgered 10 INITiate TRG OUTPut OFF RCL 2 OUTPut ON Command Terminators A terminator informs SCPI that it has reached the end of a command Three permitted command terminators are newline lt NL gt which is ASCII decimal 10 or hex 0A end or identify lt END gt both of the above lt NL gt lt END gt In the examples of this guide the message terminator is assumed Series N5700 User s Guide 61 SCPI Commands
106. l DATA lt NRf gt DATE lt date gt LEVel P1 P2 PASSword lt NRf gt STATE lt Bool gt lt NRf gt VOLTage LEVel INITiate MMediate TRANsient CONTinuous TRANsient MEASure SCALar CURRent DC VOLTage DC OUTPut STATe lt Bool gt PON STATe RST AUTO PROTection CLEar SOURce CURRent LEVel MMediate AMPLitude lt NRf gt TRIGgered AMPLitude lt NRf gt PROTection STATe lt Bool gt VOLTage LEVel MMediate AMPLitude lt NRf gt TRIGgered AMPLitude lt NRf gt LIMit LOW lt NRf gt PROTection LEVel lt NRf gt Description Aborts the triggered action Calibrates the output current programming Enters the calibration value Sets the calibration date Advances to the next calibration step Sets the numeric calibration password Enables disables calibration mode Calibrates the output voltage programming Initiates the trigger system Enables disables continuous triggers Returns the measured output current Returns the measured output voltage Enables disables the specified output Programs the Power On State Resets latched protection Sets the output current Sets the triggered output current Enables disables over current protection Sets the output voltage Sets the triggered output voltage Sets the low voltage limit Sets the over voltage protection level Series N5700 User s Guide 15 SCPI Programming Commands
107. l be registered using the Dynamic DNS naming system 55 Configuring the Interface Hostname Domain Description LAN Keepalive Timeout 56 This field registers the supplied name with the selected naming service If the field is left blank then no name is registered A Hostname may contain upper and lower case letters numbers and dashes The maximum length is 15 characters The factory default is A modelnumber serialnumber Modelnumber is the instrument s 6 character model number and serialnumber is 5th through the 9th character of the 10 character serial number located on the label on the side of the unit This field registers the Internet domain for the instrument The Domain must start with a letter and may contain upper and lower case letters numbers dashes and dots This field lets you assign a user friendly name to the instrument This name is used as the title of the instrument home page This value sets the LAN keepalive in seconds The instrument uses the TCP keepalive timer to determine if a client is still reachable If after the specified amount of time there has been no activity on the connection the instrument will send keepalive probes to the client to determine if it is still alive If not the connection will be marked as down or dropped The instrument will release any resources that were allocated to that client When this parameter is set it is recommended that the largest value be us
108. l show the programmed current for 5 seconds after the adjustment has been completed and then indicate the actual output current When the output is disabled press the LIMIT button and then rotate the current knob The DC AMPS display will show the programmed current for 5 seconds after the adjustment has been completed and then go blank because the output is off The current knob can be set to coarse or fine resolution Press the FINE button to select finer resolution The FINE indicator turns on Series N5700 User s Guide Protection Functions CV CC Mode Crossover CV CC Signal CAUTION If the power supply is in constant voltage mode and the load current increases above the current limit setting the power supply switches to constant current mode If the load decreases below the current limit setting the power supply switches to constant voltage mode Do not connect the CV CC signal to a voltage source higher than 30VDC Always connect the CV CC signal to the voltage source with a series resistor to limit the sink current to less than 10mA Protection Functions The CV CC signal available on the J1 connector indicates the operating mode of the power supply The CV CC signal is an open collector output with a 30V parallel zener at J1 pin 13 referenced to common at J1 pin 12 J1 pin 12 is connected internally to the S terminal When the power supply operates in constant voltage mode CV CC output is open When the power supply
109. lent N3300A mainframe with 3 N3305A modules Agilent 82350B or equivalent Agilent Infiniium or equivalent Rhode and Schwartz Model URE3 or equivalent LaCroy 1855A DA1850A or equivalent Agilent 6813B or equivalent Series N5700 User s Guide Measurement Techniques Electronic Load Verification Many of the test procedures require the use of a variable load capable of dissipating the required power If a variable resistor is used switches should be used to either connect disconnect or short the load resistor For most tests an electronic load can be used The electronic load is considerably easier to use than load resistors but it may not be fast enough to test transient recovery time and may be too noisy for the noise PARD tests Fixed load resistors may be used in place of a variable load with minor changes to the test procedures Also if computer controlled test setups are used the relatively slow compared to computers and system voltmeters settling times and slew rates of the power supply may have to be taken into account Wait statements can be used in the test program if the test system is faster than the power supply Current Monitoring Resistor The 4 terminal current shunt is used to eliminate output current measurement error caused by voltage drops in the load leads and connections It has special current monitoring terminals inside the load connection terminals Connect the voltmete
110. limit low settings The maximum value for the immediate and triggered voltage level is either the value in the following table or the voltage protection setting divided by 1 05 whichever is lower The minimum value is either the value in the table or the low voltage setting divided by 0 95 whichever is higher Note that triggered values can be programmed outside these limits but an error will be generated when the trigger occurs Model V rating 6V 8V 12 5V 20V 30V 40V 60V 80V 100V 150V 300V 600V Min voltage level 0 0 0 0 0 0 0 0 0 0 0 0 Max voltage level 6 3 8 4 13 125 21 31 5 41 9 62 85 83 8 104 76 157 1 314 2 628 5 Series N5700 User s Guide Source Commands SOURce VOLTage LIMit LOW lt NRf gt SOURce VOLTage LIMit LOW This command sets the low voltage limit of the output When a low voltage limit has been set the instrument will ignore any programming commands that attempt to set the output voltage below the low voltage limit The RST value Max The range of values that can be programmed for this command is coupled with the immediate voltage level setting The maximum value for the low voltage limit is either the value in the following table or the immediate voltage setting multiplied by 0 95 whichever is lower The minimum setting is the value in the table Model V rating 6V 8V 12 5V 20V 30V 40V 60V 80V 100V 150V 300V 600V Min low limit 0 0 0 0 0 0 0 0 0 0 0 0 Max low limit 5 7 7 6 11 9 19 28 5
111. limit setting This protection is useful when the load is sensitive to an over current condition To arm the over current protection press the OCP button so that the OCP indicator illuminates When armed a transition from constant voltage to constant current mode will activate the over current protection When an over current protection event occurs the output is disabled the display shows OCP the PROT indicator blinks and OC is set in the Questionable Condition status register Use one of the following methods to reset over current protection after it activates If the load current is still higher than the current limit setting the over current protection will be activated again e Press the OUT ON button to turn the output on e Turn the AC power off wait a few seconds and turn it on e Turn the output off then on again using the Shut Off pin on the J1 connector This only applies in Auto Restart mode e Press the OCP button to cancel the over current protection The display will show OFF because OCP protection is latched Press the OUT ON button to reset OCP With this method the over current protection is disabled If the load current is still higher than the current limit setting the power supply will only attempt to limit the current at the current limit setting Series N5700 User s Guide Protection Functions Over Temperature Protection The over temperature protection circuit shuts down the power supply before the i
112. lluminated The green CC indicator should be also illuminated Rotate the current knob while observing the DC AMPS display The output current should vary while the knob is turned The current range is from zero to the maximum rated output for the power supply model Rotate the current knob and set the current limit of the unit to about 10 of its full scale current rating Press the OCP button This should trip the OCP protection The OCP indicator should be illuminated the DC VOLTS display should indicate OCP and the Alarm indicator should be blinking Press the OCP button again to cancel OCP protection The DC VOLTS display should indicate OFF because the OCP protection is latched Press the OUT ON button to reset the OCP protection The output should return to its previous setting Turn the POWER switch off Remove the short from the V and V output terminals 37 Normal Operation Normal Operation The power supply has two basic operating modes constant voltage and constant current mode In constant voltage mode the power supply regulates the output voltage at the selected value while the load current varies as required by the load In constant current mode the power supply regulates the output current at the selected value while the voltage varies as required by the load The mode in which the power supply operates at any given time depends on the voltage setting current limit setting and the load resistance
113. ltage Sensing Output Voltage Sensing e Loosen the two chassis screws marked A halfway e Assemble the protective shield to the chassis and tighten the two screws to fix the shield to the chassis Screws tightening torque 4 8 5 3 in lb e Tighten the wires to one of the shield sides using tie wrap or equivalent Refer to the following figure Load wires e Ensure that the wire length inside the shield is long enough to provide proper strain relief WARNING SHOCK HAZARD There is a potential shock hazard at the sense connector when using a power supply with a rated output greater than 40V Ensure that the local sense and remote sense wiring insulation rating is greater than or equal to the maximum output voltage of the power supply Ensure that the connections at the load end are shielded to prevent accidental contact with hazardous voltages 26 Local and remote sense connections are made at the J2 connector The connector has a removable plug that makes it easy for you to make your wire connections Refer to the following figure for the terminal assignments 1 Remote sense 2 Local sense 3 Not connected 4 Local sense 5 Remote sense Series N5700 User s Guide Output Voltage Sensing The J2 connector plug specifications are as follows Plug Type MC 1 5 5 ST 3 81 Phoenix Wire Size AWG 28 to AWG 16 Stripping Length 7 mm 0 28 in Torque 0 22 0 25 Nm 1 95 2 21 in
114. mA 9 5mA 7 5mA 5mA 2 5mA 1 3mA Current 1500W 0 1 180mA 165mA 120mA 76mA 50mA 38mA 25mA 19mA 15mA 10mA 5mA 2 6mA Measurement Accuracy Voltage 0 1 6mV 8mV 125mV 20mV 30mV 40mV 60mV 80mV 100mV 150mV 300mV 600mV Current 750W 0 1 300mA 270mA 180mA 114mA 75mA 57mA 37 5mA 28 5mA 22 5mA 15mA 7 5mA 3 9mA Current 1500W 0 1 540mA 495mA 360mA 228mA 150mA 114mA 75mA 57mA 45mA 30mA 15mA 7 8mA Load Transient Recovery Time time for output voltage to recover within 0 5 of its rated output for a load change from 10 to 90 of its rated output current Time lt 1 2ms lt 1 2ms lt 1 2ms lt 1ms lt 1ims lt 1ims lt ims lt ims lt 1ims lt 2ms lt 2ms lt 2ms Voltage set point from 10 to 100 of rated output NOTE 1 20MHz NOTE 2 From 5Hz 1MHz 86 Series N5700 User s Guide Supplemental Characteristics Supplemental Characteristics Agilent Models N5741A N5752A and N5761A N5772A Model V rating 6V 8V 12 5V 20V 30V 40V 60V 80V 100V 150V 300V 600V Output Response Time to settle to within 0 5 of the rated output with a resistive load Up full load 0 08s 0 08s 0 08s 0 08s 0 08s 0 08s 0 08s 0 15s 0 15s 0 15s 0 15s 0 25s Down full load 0 01s 0 05s 0 05s 0 05s 0 08s 0 08s 0 08s 0 15s 0 15s 0 15s 0 15s 0 30s Down no load 0 5s 0 6s 0 7s 0 8s 0 9s 1 0s 1 1s 1 2s 1 5s 2 0s 2 5s 4s Command Response Time add this to the output response time to obtain the total programming time 100 ms Remote Sense Compensat
115. n 12 525 A N5767A 24 95 A 25 05 A Front Panel Display Readback N5747A lout 50 mA lout 50 mA N5767A lout 100 mA lout 100 mA CC Load Effect N5747A 7 5 mA 7 5 mA N5767A 10 mA O 10 mA CC Source Effect N5747A 3 25 mA 3 25 mA N5767A 4 5 mA S O 45 mA Test Description N5747A Setting N5767A Setting Voltage Programming amp Readback Min Voltage 0OV 0A 0OV 0A Voltage Programming amp Readback High Voltage 60V 0A 60 V 0A CV Load Effect Source Effect Ripple and Noise 60 V 12 5 A 60 V 25 A Transient Response 60 V from 1 25 A to 11 25A 60 V from 2 5 A to 22 5 A Current Programming amp Readback Min Current 0 A 60 V 0A 60V Current Programming amp Readback High Current 12 5 A 60 V 25 A 60 V CC Load Effect Source Effect 12 5 A 60 V 25 A 60 V Load Requirements N5747A N5767A Current shunt 0 1Q15A 0 010 100A Agilent N3300 Electronic load modules 2 N3305A 3 N3305A Fixed Resistor for CV Ripple and Noise 4 8Q 1kW 2 40 2kW Series N5700 User s Guide 105 Verification 106 Test Record Form Agilent N5748A and N5768A Agilent N5748A and N5768A Report No Date Description Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 40 mV 40 mV Front Panel Display Readback Both Vout 80 mV Vout 80 mV High Voltage Vout Both 79 92 V 80 08 V Front Panel Display Readback Both Vout 160 mV Vout 160 mV CV Load Effect Both 10 mV 10 mV CV
116. nd 1 if the output is on The RST value Off OUTPut PON STATe RST AUTO OUTPut PON STATe This command determines if the power on state will be determined by the reset state or the settings the unit had when it was turned off RST programs the unit to the reset state AUTO programs the unit to the settings it had when it was turned off The power on state information is saved on non volatile memory Refer to RST and RCL under System Commands for details OUTPut PROTection CLEar 68 This command clears the latched signals that have disabled the output The over voltage and over current conditions are always latching The over temperature condition AC fail condition Enable pins and SO pins are latching if OUTPut PON STATe is RST and non latching if OUTPut PON STATe is AUTO All conditions that generate the fault must be removed before the latch can be cleared The output is then restored to the state it was in before the fault condition occurred Series N5700 User s Guide Source Commands Source Commands Source commands program the voltage current triggered and protection functions SOURce CURRent LEVel IMMediate AMPLitude lt NR gt SOURce CURRent LEVel IMMediate AMPLitude SOURce CURRent LEVel TRIGgered AMPLitude lt NRf gt SOURce CURRent LEVel TRIGgered AMPLitude These commands set the immediate and the triggered output current level The values a
117. ng for wiring voltage drop See next page for details Connector for connecting to a GPIB interface See chapter 4 for setup M4x8 screws for making chassis ground connections WARNING SHOCK HAZARD The power cord provides a chassis ground through a third conductor Be certain that your power outlet is of the three conductor type with the correct pin connected to earth ground Series N5700 User s Guide J2 Sense Connector 1 Remote sense 2 Local sense 3 Not used 4 Local sense 5 Remote sense The Rear Panel At a Glance The factory shipped configuration is shown in the figure SW1 Setup Switch 1 Output voltage voltage programming 2 Output current voltage programming 3 Programming range voltage resistance 4 Voltage and Current monitoring range 5 Shut Off Logic Select 6 Not Used 7 Output voltage resistive programming 8 Output current resistive programming 9 Enable Disable control Series N5700 User s Guide The factory shipped setting is Down for all switches Down Up Down Up Down Up Down Up Down Up Down Up Down Up Down Up The output voltage is programmed by the front panel The output voltage is programmed by the external voltage signal The output current is programmed by the front panel The output current is programmed by the external voltage
118. nit should be programmed to the desired load current limit divided by the number of parallel units 31 Series Connections Setting the Over Voltage Protection The master unit OVP should be programmed to the desired OVP level The OVP of the slave units should be programmed to a higher value than the master When the master unit shuts down it programs the slave unit to zero output voltage If a slave unit shuts down when its OVP is set lower than the master output voltage only that unit shuts down and the remaining slave units will supply all the load current Setting the Over Current Protection Series Connections Over current protection if desired may only be used with the master unit When the master unit shuts down it programs the slave units to zero output voltage SHOCK HAZARD For models up to GOVDC rated output no point shall be more than 60VDC above below chassis ground For models gt 60VDC rated output no point shall be more than 600VDC above below chassis ground There is also a potential shock hazard at the IEEE LAN USB ports when using power supplies with rated or combined voltages gt 400VDC with the positive output of the power supplies grounded Do not connect the positive output to ground when using the IEEE LAN USB under the above conditions CAUTION Only power supplies that have equivalent voltage and current ratings can be connected in series 32 Two units of the same voltage and current
119. nternal components can exceed their safe internal operating temperature When an OTP condition occurs the output is disabled the display shows O7P the PROT indicator blinks and the OT status bit is set in the Questionable Condition status register Resetting the OTP circuit can be automatic non latched or manual latched depending on the Safe Start or Auto Restart mode In Safe Start mode the OTP circuit is latched The display continues to show O7P and the PROT indicator continues to blink To reset the OTP circuit press the OUT ON button In Auto Restart mode the OTP circuit is non latched The power supply returns to its last setting automatically when the over temperature condition is removed Power Fail Protection If the AC power stops briefly but returns before the power supply has reset the power fail protection circuit trips and the PF status bit is set in the Questionable Condition status register Resetting the power fail protection can be automatic non latched or manual latched depending on the Safe Start or Auto Restart mode In Safe Start mode the output of the power supply is Off as specified by the reset state when AC power returns In Auto Restart mode the power supply recovers its last settings when AC power returns Front Panel Lock Out The front panel controls can be locked to protect from accidental power supply parameter change Press and hold the LIMIT button to toggle between Locked front panel
120. o connect the load to the output regardless of where or how the system is grounded To avoid noise problems caused by common mode current flowing from the load to ground it is recommended to ground the output terminal as close as possible to the power supply chassis ground SHOCK HAZARD For models up to GOVDC rated output no point shall be more than 60VDC above below chassis ground For models gt 60VDC rated output no point shall be more than 600VDC above below chassis ground There is also a potential shock hazard at the IEEE LAN USB ports when using power supplies with rated or combined voltages gt 400VDC with the positive output of the power supplies grounded Do not connect the positive output to ground when using the IEEE LAN USB under the above conditions Parallel Connections 30 CAUTION Only power supplies that have equivalent voltage and current ratings can be connected in parallel Up to four units of the same voltage and current rating can be connected in parallel to provide up to four times the output current capability Refer to the following figures for typical connections of parallel power supplies using either local or remote sensing The figures show two units however the same connection method applies for up to four units S LS LS S As short as possible MASTER Twisted POWER SUPPLY pair J1 8 J1 12 J1 10 SLAVE POWER SUPPLY S LS LS S Local Sensing Series N57
121. oltage knob the display shows OUP You cannot set the over voltage protection lower than about 5 above the present output voltage setting UVL function Press OVP UVL twice to set the under voltage programming limit with the Voltage knob the display shows UUL You cannot set the under voltage protection higher than about 5 below the present output voltage setting Limit function Press LIMIT to display the output voltage and current limit For five seconds the display shows the settings and then it returns to show the actual output voltage and current Lock function Press and hold the LIMIT button to toggle between Locked front panel and Unlocked front panel The display will cycle between LFP and UFP Releasing the LIMIT button while one of the modes is displayed selects that mode When lit indicates that the LIMIT button is pressed Selects Fine or Coarse adjustment control In Fine mode the Voltage and Current knobs operate with high resolution in Coarse mode with lower resolution approximately six turns When lit indicates that the unit is in Fine adjustment mode When blinking indicates that a fault has occurred OVP OCP OTP Enable fail and AC fail detection will cause the PROT indicator to blink The PROT indicator may blink and the display indicate AC for a few seconds after the unit is turned off because of residual energy inside the unit Turns the power supply on or off 11 The Rear Panel At a Glance
122. onfigurable LAN parameters include DHCP This parameter allows Dynamic Host Configuration Protocol DHCP to be enabled or disabled DHCP is a protocol for assigning dynamic addresses to devices on a network If DHCP is enabled On the instrument will try to obtain an IP address from a DHCP server If a DHCP server is found the DHCP server will assign an IP address Subnet Mask and Default Gateway to the instrument If DHCP is disabled Off or unavailable the instrument will try to obtain an IP address using Auto IP Series N5700 User s Guide AutolP IP Address Subnet Mask Default Gateway DNS DNS Server Naming service Series N5700 User s Guide Configuring the Interface This parameter allows automatic IP addressing to be enabled or disabled AutolP automatically assigns addresses on networks that do not have a DHCP server If AutolP is enabled On an IP address Subnet Mask and Default Gateway will automatically be assigned to the instrument If AutolP is disabled Off the instrument will use the manual IP Address Subnet Mask and Default Gateway specified in the following fields during power on This value is the Internet Protocol IP address of the instrument An IP address is required for all IP and TCP IP communications with the instrument An IP Address is 4 decimal numbers separated by periods Each decimal number ranges from 0 through 255 If the IP Address is changed the instrument must be reboot
123. onfigured using this page 53 Configuring the Interface NOTE If this does not work perform a low level verification of the LAN connection using ping To do this open a MS DOS Command Prompt box and type ping lt default hostname gt Ping should indicate that it was able to connect with the N5700 unit It will also indicate the IP address assigned Note that certain firewall software can interfere with ping If ping does not work try temporarily disabling the firewall If Ping still does not work you may need to configure the LAN parameters using the Setup Utility as described later in this section 54 Configuring the LAN parameters To configure the LAN parameters from the instrument s Web server click on the View amp Modify Configuration tab on the left side of the page Then click on the Modify Configuration button on the top of the page The following screen lets you modify the LAN parameters Current Setting New Setting Wr 169 258 174 200 169 254 174 200 Subnet Mask 255 255 0 0 255 255 0 0 Default Gateway 0000 0 0 0 0 DNS Server Used only when DNS is manual Dnsseverr EEE 130 30 136 36 Host Name Used if a Naming Service is selected Hostname MEAS A N5772A 34567 oe Agilent N5772A US12345678 LAN Keepalive Timeout 1800 Enabled seconds 1800 El Enable GPIB Address 7 The c
124. ore triggering the change WriteString MEAS VOLT MeasureVoltString ReadString Save the value for later display msgl Voltage before trigger amp MeasureVoltString Initiate the trigger system and send the trigger WriteString INIT WriteString TRG Measure the voltage after triggering the change WriteString MEAS VOLT MeasureVoltString ReadString Display the measured values MsgBox msgl1 Chr 13 Voltage after trigger amp MeasureVoltString Check instrument for any errors WriteString Syst err ErrString ReadString Give message if there is an error If Val ErrString Then MsgBox Error in instrument amp vbCrLf amp ErrString End If With Series N5700 User s Guide Series N5700 User s Guide A Specifications Performance Specifications 86 Supplemental Characteristics 87 Outline Diagram 89 This chapter lists the specifications and supplemental characteristics of the Agilent N5700 power supplies A dimensional line drawing of the unit is included at the end of the chapter Unless otherwise noted specifications are warranted over the ambient temperature range of 0 to 40 C Sensing is at the rear terminals of the power supply after a 30 minute warm up period Sense terminals are externally jumpered to their respective output terminals Supplemental characteristics are not warranted but are descriptions of typical performance determined either by design or type testin
125. oth N A 8 mV Transient Response Voltage 1ms Both 100 mV 100 mV Current Programming amp Readback Minimum Current lout N5744A 38 mA 38 mA N5764A 76 mA 76 mA Front Panel Display Readback N5744A lout 114 mA lout 114 mA N5764A lout 228 mA lout 228 mA High Current lout N5744A 37 924 A 38 076 A N5764A 75 848 A 76 152 A Front Panel Display Readback N5744A lout 152 mA lout 152 mA N5764A lout 304 mA lout 304 mA CC Load Effect N5744A 12 6 mA 12 6 mA N5764A 20 2 mA 20 2 mA CC Source Effect N5744A 5 8 mA 5 8 mA N5764A 9 6 mA 9 6 mA Test Description N5744A Setting N5764A Setting Voltage Programming amp Readback Min Voltage 0OV 0A 0OV 0A Voltage Programming amp Readback High Voltage 20V 0A 20V 0A CV Load Effect Source Effect Ripple and Noise 20 V 38A 20 V 76A Transient Response 20 V from 3 8 A to 34 2 A 20 V from 7 6 A to 68 4 A Current Programming amp Readback Min Current 0A 20 V 0A 20V Current Programming amp Readback High Current 38 A 20 V 76 A 20 V CC Load Effect Source Effect 38 A 20 V 76 A 20 V Load Requirements N5744A N5764A Current shunt 0 01Q 100 A 0 01Q 100 A Agilent N3300 Electronic load modules 2 N3305A 3 N3305A Fixed Resistor for CV Ripple and Noise 0 53Q 1kW 0 260 2kW Series N5700 User s Guide Test Record Form Agilent N5745A and N5765A Verification Series N5700 User s Guide Agilent N5745A and N5765A Report No Date Descri
126. ption Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 15 mV 15 mV Front Panel Display Readback Both Vout 30 mV Vout 30 mV High Voltage Vout Both 29 97 V 30 03 V Front Panel Display Readback Both Vout 60 mV Vout 60 mV CV Load Effect Both 5 mV 5 mV CV Source Effect Both 5 mV 5 mV CV Ripple and Noise peak to peak Both N A 60 mV rms Both N A 8 mV Transient Response Voltage Ims Both 150 mV 150 mV Current Programming amp Readback Minimum Current lout N5745A 25mA 25mA N5765A 50mA 50 mA Front Panel Display Readback N5745A lout 75 mA lout 75 mA N5765A lout 150 mA lout 150 mA High Current lout N5745A 24 95 A 25 05 A N5765A 49 9 A 50 1A Front Panel Display Readback N5745A lout 100 mA lout 100 mA N5765A lout 200 mA lout 200 mA CC Load Effect N5745A 10 mA 10 mA N5765A 15 mA 15 mA CC Source Effect N5745A 4 5 mA 4 5 mA N5765A 7 mA 7 mA Test Description N5745A Setting N5765A Setting Voltage Programming amp Readback Min Voltage 0OV 0A 0OV 0A Voltage Programming amp Readback High Voltage 30V 0A 30V 0A CV Load Effect Source Effect Ripple and Noise 30 V 25A 30 V 50 A Transient Response 30 V from 2 5 A to 22 5 A 30V from 5A to 45 A Current Programming amp Readback Min Current 0 A 30 V 0A 30V Current Programming amp Readback High Current 25 A 30 V 50 A 30 V CC Load Effect Source Effect 25 A 30 V 50 A 30 V
127. r Invalid character An invalid character was found in the command string Syntax error Invalid syntax was found in the command string Check for blank spaces Invalid separator An invalid separator was found in the command string Check for proper use of Data type error A different data type than the one allowed was found in the command string GET not allowed A group execute trigger is not allowed in a command string Parameter not allowed More parameters were received than were expected Missing parameter Fewer parameters were received than were expected Command header error An error was detected in the header Header separator error A character that was not a valid header separator was found in the command string Program mnemonic too long The header contains more than 12 characters Undefined header A command was received that was not valid for this instrument Header suffix out of range The value of the numeric suffix is not valid Numeric data error Generic numeric data error Invalid character in number An invalid character for the data type was found in the command string Exponent too large The magnitude of the exponent was larger than 32000 Too many digits The mantissa of a numeric parameter contained more than 255 digits excluding leading zeros Numeric data not allowed A numeric parameter was received but a character string was expected Suffix error Generic suffix error Invalid suffix
128. r as follows OUTPut PROTection CLEar STATus OPERation CONDition The following message shows how to combine commands from different subsystems as well as within the same subsystem VOLTage LEVel 7 5 PROTection 10 CURRent 0 25 Note the use of the optional keyword LEVel to maintain the correct path within the subsystems and the use of the root specifier to move between subsystems The simplest SCPI command is a single message unit consisting of a keyword followed by a message terminator The message unit may include a parameter after the keyword The parameter can be numeric or a string ABORt lt NL gt VOLTage 20 voLTage TRIGgered MINimum Colons separate higher level keywords from lower level keywords Use a blank space to separate parameters from keywords If a command requires more than one parameter use commas to separate adjacent parameters Series N5700 User s Guide SCPI Commands an Introduction In the previous examples the upper case letters indicate the abbreviated spelling for the keyword For shorter program lines you can send the abbreviated form For better program readability you can send the long form For example VOLT and VOLTage are both acceptable forms You can use upper or lower case letters Therefore VOLTAGE Volt and volt are all acceptable Other forms such as VOL and VOLTAG generate an error Queries You can query the current value of most commands by adding a question mar
129. r directly to these current monitoring terminals Test Set up The following figure illustrates the test set up used for the verification procedures Power Supply S LS LS S V V DC voltmeter scope or rms voltmeter Power Su 5 LS AS S DC voltmeter scope or rms voltmeter A Electronic load or resistor Series N5700 User s Guide pply V V Electronic load or resistor Power Supply 50 BNC Resistor amplifier output Differential BNC BNC rd 50 ohm termination input Scope or rms voltmeter 93 Verification 94 Constant Voltage Tests Refer to the appropriate test record form for the instrument settings of the model you are checking Voltage Programming and Readback Accuracy Test category performance calibration This test verifies that the voltage programming and measurement functions are within specifications 1 Turn off the power supply and connect a DVM directly across the S and S terminals as shown in figure A Do not connect a load Turn on the power supply and program the output voltage to zero and the output current to its maximum programmable value Imax with the load off The CV annunciator should be on and the output current reading should be approximately zero Record the output voltage readings on the digital voltmeter DVM and t
130. racters in between Suffixes and Multipliers Class Current Amplitude Time Suffix Unit Unit with Multiplier A ampere MA milliampere V volt MV millivolt S second MS millisecond Common Multipliers 1E3 1E 3 1E 6 62 K kilo M milli U micro Series N5700 User s Guide Device Clear Series N5700 User s Guide SCPI Commands an Introduction Response Data Types Symbol Response Formats lt CRD gt Character Response Data Permits the return of character strings lt AARD gt Arbitrary ASCII Response Data Permits the return of undelimited 7 bit ASCII This data type has an implied message terminator lt SRD gt String Response Data Returns string parameters enclosed in double quotes You can send a Device Clear at any time to abort a SCPI command that may be hanging up the GPIB interface Device Clear clears the input and output buffers of the power supply The status registers error queue and all configuration states are left unchanged by Device Clear Device Clear also prepares the power supply to accept a new command string The following statement shows how to send a device clear over the GPIB interface using Agilent BASIC CLEAR 705 IEEE 488 Device Clear The following statement shows how to send a device clear over the GPIB interface using the GPIB command library for C or QuickBASIC IOCLEAR 705 63 Series N5700 User s Guide 5 Language Reference Calibration Commands 66
131. re programmed in amperes The immediate level is the output current setting The triggered level is a stored value that is transferred to the output when a trigger occurs At RST the immediate and triggered current values 0 SOURce CURRent PROTection STATe lt Bool gt SOURce CURRent PROTection STATe This command enables or disables the over current protection OCP function The enabled state is On 1 the disabled state is Off 0 If the over current protection function is enabled and the output goes into constant current operation the output is disabled and OC is set in the Questionable Condition status register The RST value Off An over current condition can be cleared with the Output Protection Clear command after the cause of the condition is removed SOURce VOLTage LEVel IMMediate AMPLitude lt NRf gt SOURce VOLTage LEVel IMMediate AMPLitude SOURce VOLTage LEVel TRIGgered AMPLitude lt NRf gt SOURce VOLTage LEVel TRIGgered AMPLitude These commands set the immediate and the triggered output voltage level The values are programmed in volts The immediate level is the output voltage setting The triggered level is a stored value that is transferred to the output when a trigger occurs At RST the immediate and triggered voltage values 0 The range of values that can be programmed for these commands is coupled with the voltage protection and the voltage
132. register its hostname with the dynamic DNS server The default hostname can then be used to communicate with the instrument 3 Use the Web browser on your computer to communicate with the instrument s Web server Enter the instrument s LAN Hostname in the Address field of your Internet browser A N5741A D0001 is an example of a Host name You should see the instrument s home page Series N5700 User s Guide 4 Configuring the Interface If you need to reconfigure the LAN parameters click on the View amp Modify Configuration tab All LAN parameters can be reconfigured using this page If this does not work perform a low level verification of the LAN connection using ping To do this open a MS DOS Command Prompt box and type ping lt default hostname gt Ping should indicate that it was able to connect with the N5700 unit It will also indicate the IP address assigned If Ping does not work you may need to configure the LAN parameters using the Setup Utility as described later in this section Series N5700 User s Guide Connecting to a private LAN 1 If you do not have the Agilent I O Library software installed on your computer install the I O software from the CD ROM included with this manual Connect the instrument to the PC using a LAN crossover cable Alternatively connect the computer and the instrument to a standalone hub or switch using regular LAN cables Make sure the computer is configured to obta
133. s notification that all overlapped commands have been completed All triggered actions are completed OPC does not prevent processing of subsequent commands but bit 0 will not be set until all pending operations are completed OPC causes the instrument to place an ASCII 1 in the Output Queue when all pending operations are completed Unlike OPC OPC prevents processing of all subsequent commands It can be used at the end of a command line so that the program can monitor the bus for data until it receives the 1 from the Output Queue 75 Status Commands 76 SRE SRE STB WAIL This command sets the condition of the Service Request Enable Register This register determines which bits from the Status Byte Register are allowed to set the Master Status Summary MSS bit and the Request for Service RQS summary bit A 1 in any Service Request Enable Register bit position enables the corresponding Status Byte Register bit and all such enabled bits then are logically OR ed to cause Bit 6 of the Status Byte Register to be set When the controller conducts a serial poll in response to SRQ the RQS bit is cleared but the MSS bit is not When SRE is cleared by programming it with 0 the power supply cannot generate an SRQ to the controller The query returns the current state of SRE This query reads the Status Byte register which contains the status summary bits and the Output Queue MAV bit Reading the Status
134. s serve as polarity filters between the Operation Condition and Operation Event registers to cause the following actions When a bit in the Operation NTR register is set to 1 then a 1 to 0 transition of the corresponding bit in the Operation Condition register causes that bit in the Operation Event register to be set When a bit of the Operation PTR register is set to 1 then a 0 to 1 transition of the corresponding bit in the Operation Condition register causes that bit in the Operation Event register to be set Ifthe same bits in both NTR and PTR registers are set to 1 then any transition of that bit at the Operation Condition register sets the corresponding bit in the Operation Event register Ifthe same bits in both NTR and PTR registers are set to 0 then no transition of that bit at the Operation Condition register can set the corresponding bit in the Operation Event register The Preset value are NTR 0 PTR 32767 STATus QUEStionable EVENt This query returns the value of the Questionable Event register The Event register is a read only register which stores latches all events that are passed by the Questionable NTR and or PTR filter Reading the Questionable Event register clears it The bit configuration of the Questionable status registers is as follows Bit Position 15 11 10 9 8 5 4 3 2 1 0 Bit Value 1024 512 16 4 2 1 Bit Name UNR INH OT PF OC OV UNR The output is unregulated INH The
135. s the revision number for that year This query requests the power supply to identify itself It returns a string of four fields separated by commas Agilent Technologies Manufacturer XXXXXA Model number followed by a letter suffix 0 Zero or serial number if available lt A XX XX gt lt A XX XX gt Firmware revision power supply revision 77 System Commands 78 OPT This query requests the unit to identify any installed options A 0 indicates no options are installed RCL lt NR1 gt This command restores the power supply to a state that was previously stored in memory locations 0 through 15 with the SAV command Note that you can only recall a state from a location that contains a previously stored state All saved instrument states are lost when the unit is turned off RST This command resets the power supply to a factory defined state This state is defined as follows Note that RST also forces an ABORt command The RST settings are as follows CAL STAT Off SOUR CURR PROT STAT Off INIT CONT Off SOUR VOLT 0 OUTP off SOUR VOLT LIM 0 SOUR CURR 0 SOUR VOLT TRIG 0 SOUR CURR TRIG 0 SOUR VOLT PROT MAXimum SAV lt NR1 gt This command stores the present state of the power supply to memory locations 0 through 15 All saved instrument states are lost when the unit is turned off TST This query always returns a zero Series N5700 User s Guide Trigger Commands Trigger Commands Trigger commands con
136. s will generate an error CALibrate CURRent LEVel lt NRf gt This command initiates the calibration of the output current The value that you enter selects the range that is being calibrated CALibrate DATA lt NRE E gt This command enters a calibration value that you obtain by reading an external meter You must first select a calibration level with CALibrate LEVel for the value being entered Data values are entered in either volts or amperes depending on which function is being calibrated CALibrate DATE lt date gt CALibrate DATE This command stores the date the unit was last calibrated The data must be of the numeric format yyyy mm dd where yyyy indicates the year mm indicates the month and dd indicates the day The query returns the date CALibrate LEVel P1 P2 This command selects the next point in the calibration sequence P1 is the first calibration point P2 is the second calibration point CALibrate PASSword lt NRf gt This command lets you change the calibration password A new password is automatically stored in nonvolatile memory If the password is set to 0 password protection is removed and the ability to enter calibration mode is unrestricted The default password is 0 zero 66 Series N5700 User s Guide Measure Commands CALibrate STATe lt Bool gt lt NRf gt CALibrate STATe This command enables disables calibration mode Calibration mode must be enabled for the po
137. se of missing hardware such as an option Expression error An expression program data element related error occurred Math error in expression An expression program data element could not be executed due to a math error Query Errors these errors set Standard Event Status register bit 2 Query Error Generic error query Query INTERRUPTED A condition causing an interrupted query error occurred Query UNTERMINATED A condition causing an unterminated query error occurred Query DEADLOCKED A condition causing a deadlocked query error occurred Query UNTERMINATED after indefinite response A query was received in the same program message after a query indicating an indefinite response was executed Series N5700 User s Guide 119 CAUTION D Compatibility Differences In General 122 Compatibility Command Summary 123 The Agilent N5700 power supplies are programmatically compatible with the Agilent 603xA power supplies This means that you can remotely program the Agilent N5700 power supplies using the same commands that are used to program the 603xA power supplies Do not mix Compatibility with SCPI commands in the same program This will result in unpredictable instrument behavior Series N5700 User s Guide 121 Differences In General Differences In General 122 Item Queries The following table documents the general differences between the way Compatibility commands work on the Agil
138. se the VISA TCP IP connect string in the VISA viOpen function This string is of the form TCPIPO hostname INSTR where hostname is the default hostname or new hostname if it has been reconfigured This can also be the unit s IP address Do not use the IP address if it has been dynamically obtained as it could change Using VISA Assistant Run the Agilent library IO config program In the Configured Interfaces pane click on TCPIPO In the LAN Client dialog click the Edit VISA Config button In the TCPIP devices dialog click the Add device button In the Machine Name IP box enter the N5700 Hostname or IP address Using Telnet In an MS DOS Command Prompt box type telnet hostname 5024 where hostname is the N5700 Hostname or IP address and 5024 is the instrument s telnet port You should get a telnet session box with a title indicating that you are connected to the N5700 unit Type SCPI commands at the prompt Series N5700 User s Guide SCPI Commands an Introduction SCPI Commands an Introduction Syntax Square Brackets Angle brackets lt gt Vertical bar Braces SCPI Standard Commands for Programmable Instruments is an ASCII based instrument command language designed for test and measurement instruments SCPI commands are based on a hierarchical structure also known as a tree system In this system associated commands are grouped together under a common node or root thus forming subsystems
139. signal The remote programming range is 0 5V 0 5KQ The remote programming range is 0 10V 0 10KQ The remote monitoring range is 0 5V The remote programming range is 0 10V OUT OFF Low 0 0 6V or short OUT ON High 2V 15V or open OUT OFF High 2V 15V or open OUT ON Low 0 0 6V or short The output voltage is programmed by the front panel The output voltage is programmed by the external resistor The output current is programmed by the front panel The output current is programmed by the external resistor The J1 Enable Enable pins are not active The J1 Enable Enable pins are active 13 The Rear Panel At a Glance Pin 1 Pin 2 3 Pin 4 7 Pin 8 Pin 9 Pin 10 Pin 11 Pin 12 Pin 13 Pin 14 Pin 15 Pin 16 Pin 17 20 Pin 21 Pin 22 Pin 23 Pin 24 Pin 25 14 J1 Analog Programming Connector Chassis Common Chassis Common Enable Voltage Monitor Common S cv cc Current Program Voltage Program Local Analog Enable Shut Off Power Supply OK Parallel Current Monitor Current Prog Return Voltage Prog Return Local Analog State The factory shipped default configuration is Local operation which does not require connection to J1 Enable Chassis Common Not Used Local Analog Voltage Program Current Program Voltage Monitor Common cv CC Enable Shut Off Power Supply 0K Not Used Local An
140. sist of the Abort Trigger and Initiate commands Initiate commands initialize the trigger system Trigger commands control the triggering of the power supply ABORt This command cancels any trigger actions in progress and returns the trigger system to the IDLE state unless INIT CONT is enabled It also resets the WTG bit in the Status Operation Condition register ABORt is executed at power on and upon execution of RST INITiate IMMediate TRANsient This command controls the enabling of output triggers When a trigger is enabled a trigger causes the specified triggering action to occur If the trigger system is not enabled all triggers are ignored INITiate CONTinuous TRANsient lt Bool gt INITiate CONTinuous TRANsient This command continuously initiates output triggers The enabled state is On 1 the disabled state is Off 0 When disabled the trigger system must be initiated for each trigger with the INITiate command TRIGger TRANsient IMMediate If the trigger system has been initiated this command generates an immediate output trigger When sent the output trigger will Initiate an output change as specified by the CURR TRIG or VOLT TRIG settings Clear the WTG bits in the Status Operation Condition register after the trigger action has completed TRIGger SOURce BUS TRIGger SOURce This command selects the trigger source for the output trigger system Only BUS can be selected as the
141. software as defined in DFAR 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FAR 52 227 19 June 1987 or any equivalent agency regulation or contract clause Use duplication or disclosure of Software is subject to Agilent Technologies standard commercial license terms and non DOD Departments and Agencies of the U S Government will receive no greater than Restricted Rights as defined in FAR 52 227 19 c 1 2 June 1987 U S Government users will receive no greater than Limited Rights as defined in FAR 52 227 14 June 1987 or DFAR 252 227 7015 b 2 November 1995 as applicable in any technical data Series N5700 User s Guide Safety Notices The following general safety precautions must be observed during all phases of operation of this instrument Failure to comply with these precautions or with specific warnings or instructions elsewhere in this manual violates safety standards of design manufacture and intended use of the instrument Agilent Technologies assumes no liability for the customer s failure to comply with these requirements General Do not use this product in any manner not specified by the manufacturer The protective features of this product may be impaired if it is used in a manner not specified in the operation instructions Before Applying Power Verify that all safety precautions are taken Make all
142. t momentarily but shuts off quickly Display indicates OUP Is the power supply configured for remote sensing Check if the positive or negative load wire is loose Output voltage will not adjust Front panel CC LED is on Is the power supply in constant current mode Check the current limit setting and load current Output voltage will not adjust Front panel CV LED is on Is the output voltage being adjusted above the OVP setting or below the UVL setting Set the OVP or UVL so that they will not limit the output Output current will not adjust Front panel CV LED is on Is the unit in constant voltage mode Check the current limit and voltage setting Large ripple present in output Is the power supply in remote sense Is the voltage drop on the load wire high Check load and sense wires connection for noise and impedance effects Minimize the drop on the load wires No output Display indicates OUP Over voltage circuit has tripped Turn off the POWER switch Check load connections If analog programming is used check if the OVP is set lower than the output No output Front panel PROT indicator is blinking Display indicates ENA Display indicates SO Display indicates 07P Display indicates OCP Check connector J1 ENABLE connection Also check SW1 switch setting Check connector J1 Output Shut Off connection Check if air intake or exhaust is blocked
143. t reading on the front panel display The readings should be within the limits specified in the test record card for the appropriate model under Current Programming and Readback 0 A Program the output current to its full scale rating Divide the voltage drop DVM reading across the current shunt by its resistance to convert to amps and record this value lout Also record the current reading on the front panel display The readings should be within the limits specified in the test record card for the appropriate model under Current Programming and Readback Full Scale CC Load Effect Test category performance This test measures the change in output current resulting from a change in output voltage from full scale to short circuit 1 Turn off the power supply and connect the current shunt DVM and electronic load as shown in figure B Connect the DVM directly across the current shunt To ensure that the values read during this test are not the instantaneous measurement of the AC peaks of the output current ripple several DC measurements should be made and averaged If you are using an Agilent 3458A you can set up the voltmeter to do this automatically From the instrument s front panel program 100 power line cycles per measurement Press NPLC 100 ENTER Turn on the power supply and program the output current to its full scale value and the output voltage to its maximum programmable value Vmax 97 Verification
144. t was invalid Expression data not allowed Expression data element was sent but is not allowed for this command Execution Errors these errors set Standard Event Status register bit 4 Execution error Generic syntax error Parameter error A data element related error occurred Settings conflict A data element could not be executed because of the present instrument state Data out of range A data element could not be executed because the value was outside the valid range Too much data A data element was received that contains more data than the instrument can handle Illegal parameter value An exact value was expected but not received Out of memory The device has insufficient memory to perform the requested operation Lists not same length One or more lists are not the same length Data corrupt or stale Possible invalid data A new reading was started but not completed Series N5700 User s Guide 231 232 233 240 241 260 261 400 410 420 430 440 Error Messages Execution Errors continued Data questionable The measurement accuracy is suspect Invalid format The data format or structure is inappropriate Invalid version The version of the data format is incorrect to the instrument Hardware error The command could not be executed because of a hardware problem with the instrument Hardware missing The command could not be executed becau
145. ted from the power leads Twisting the load wires reduces the parasitic inductance of the cable which could produce high frequency voltage spikes at the load and the output because of current variation in the load itself The impedance introduced between the power supply output and the load could make the ripple and noise at the load worse than the noise at the power supply rear panel output Additional filtering with bypass capacitors at the load terminals may be required to bypass the high frequency load current Inductive Loads Series N5700 User s Guide Inductive loads can produce voltage spikes that may be harmful to the power supply A diode should be connected across the output The diode voltage and current rating should be greater than the power supply maximum output voltage and current rating Connect the cathode to the positive output and the anode to the negative output of the power supply Where positive load transients such as back EMF from a motor may occur connect a surge suppressor across the output to protect the power supply The breakdown voltage rating of the suppressor must be approximately 10 higher than the maximum output voltage of the power supply 29 Parallel Connections Grounding the Output The output of the power supply is isolated from earth ground Either positive or negative voltages can be obtained from the output by grounding or commoning one of the output terminals Always use two wires t
146. ter to do this automatically From the instrument s front panel program 100 power line cycles per measurement Press NPLC 100 ENTER Turn on the power supply and program the output current to its full scale value and the output voltage to its maximum programmable value Vmax With the electronic load in CV mode set it for the output s full scale voltage The CC annunciator on the front panel must be on If it is not adjust the load so that the voltage drops slightly Adjust the transformer to the lowest rated line voltage 85 VAC for 100 120 nominal line 170 VAC for 200 240 nominal line Divide the voltage drop DVM reading across the current monitoring resistor by its resistance to convert to amps and record this value lout Adjust the transformer to the highest rated line voltage 132 VAC for 100 120 nominal line 265 VAC for 200 240 nominal line Divide the voltage drop DVM reading across the current shunt by its resistance to convert to amps and record this value lout The difference between the DVM reading in steps 6 and 8 is the source effect which should not exceed the value listed in the test record card for the appropriate model under CC Source Effect Series N5700 User s Guide Test Record Form Agilent N5741A and N5761A Verification Agilent N5741A and N5761A Report No Date Model Minimum Specs Results Maximum Specs Voltage Programming amp Readback Minimum Voltage Vout Both 3mV
147. the load s transient current level to 90 of the power supply s full scale current value Turn the transient generator on 6 Adjust the oscilloscope for a waveform similar to that shown in the following figure 7 The output voltage should return to within the specified voltage in the specified time following the 10 to 90 load change Check both loading and unloading transients by triggering on the positive and negative slope Record the voltage at time t in the performance test record card under Transient Response Loading n Transient Unloading Transient Series N5700 User s Guide Verification Constant Current Tests Refer to the appropriate test record form for the instrument settings of the model you are checking Series N5700 User s Guide Current Programming and Readback Accuracy Test category performance calibration This test verifies that the current programming and measurement functions are within specifications 1 Turn off the power supply and connect the current shunt directly across the output Connect the DVM across the current shunt Turn on the power supply and program the output voltage to its full scale value and the output current to zero The CC annunciator should be on and the output voltage reading should be approximately zero Divide the voltage drop DVM reading across the current shunt by its resistance to convert to amps and record this value lout Also record the curren
148. ts No output terminal may be more than 60 VDC from any other terminal or chassis ground 80V to 600V units No output terminal may be more than 600 VDC from any other terminal or chassis ground Savable states In volatile memory 16 in memory locations 0 15 Interface Capabilities GPIB SCPI 1993 IEEE 488 2 compliant interface USB 2 0 Requires Agilent 1 0 Library version L 01 01 10 100 LAN Requires Agilent 1 0 library version L 01 01 Environmental Conditions Environment Indoor use installation category II AC input pollution degree 2 Operating temp 0 C to 40 C 100 load Storage temp 20 C to 70 C Operating humidity 30 to 90 relative humidity no condensation Storage humidity 10 to 95 relative humidity no condensation Altitude Up to 3000 meters Derate the output current by 2 100m above 2000m Derate the maximum ambient temperature by 1 C 100m above 2000m Regulatory Compliance IEC 348 UL 1244 and CSA 22 2 No 231 RFI conducted amp radiated Level A Any LEDs used in this product are Class 1 as per IEC 825 1 This ISM device complies with Canadian ICES 001 Cet appareil ISM est conforme a la norme NMB 001 du Canada Acoustic Noise Declaration Statements provided to comply with requirements of the German Sound Emission Directive from 18 January 1991 Sound Pressure Lp lt 70 dB A At Operator Position Normal Operation According to EN 27779 Type Test Schalldruckpegel
149. urn instrument identification Enable operation complete bit in ESR Return a 1 when operation complete Return option number Recalls a saved instrument state Reset Saves an instrument state Set service request enable register Return service request enable register Return status byte Trigger Performs self test then returns result Holds off bus until all device commands done Series N5700 User s Guide Series N5700 User s Guide 2 Installation General Information 18 Inspecting the Unit 19 Installing the Unit 19 Connecting the Line Cord 21 Connecting the Load 23 Output Voltage Sensing 26 Load Considerations 28 Parallel Connections 30 Series Connections 32 J1 Connector Connections 34 This chapter describes how to install your power supply It discusses installation rack mounting and line cord connections This chapter also discusses how to connect your load to the output terminals It discusses what you need to know about wire sizes and how to compensate for voltage drops in the load leads It also discusses various loads configurations and how to connect units in series and parallel Before getting started check the list under Items Supplied and verify that you have received these items with your instrument If anything is missing please contact your nearest Agilent Sales and Service Office 17 General Information General Information 18 Models Options Accessories
150. using SCPI commands 35 Turn On Check Out Turn On Check Out 36 Before Check Out Ensure that the power supply is configured as follows The unit is connected to an appropriate AC source as described in chapter 2 The POWER switch is in the off position Sense connector pins 1 and 2 are jumpered sense connector pins 4 and 5 are jumpered All switches on Connector J2 are in the down position SHOCK HAZARD Be aware that hazardous voltages can be present on the output terminals Do not set the output voltage above 40 VDC during the turn on check out procedure Constant Voltage Check OVP Check Turn the POWER switch on Turn the output on by pressing the OUT ON button The green OUT ON indicator should be illuminated The green CV indicator should also be illuminated If the CC indicator is illuminated rotate the current knob until the CV indicator becomes illuminated Rotate the voltage knob while observing the DC VOLTS display The output voltage should vary while the knob is turned The voltage range is from zero to the maximum rated output for the power supply model Rotate the voltage knob and set the output voltage of the unit to 50 of its full scale rating or 30 volts whichever is lower Press the OVP UVL button once so that the DC AMPS display indicates OUP The DC VOLTS display shows the OVP level Use the voltage knob and set the OVP level of the unit to 75 of its full scale voltage rating or
151. verheating of the power cord resulting in fire The detachable power cord may be used as an emergency disconnecting device Removing the power cord will disconnect ac input power to the unit The AC input on the back of your unit is a universal AC input It accepts line voltages in the range of 85 VAC to 265 VAC The frequency range is 47 Hz to 63 Hz The input current requirement of 750W units is 10 5A 100 VAC nominal and 5A 200 VAC nominal The current requirement of 1500W units is 21A 100 VAC nominal and 11A 200 VAC nominal Input Connections for 750W units Connect the power cord to the IEC 320 connector on the rear of the unit The IEC connector provides the safety ground connection when the AC cord is plugged into a grounded AC receptacle If the wrong power cord was shipped with your unit contact your nearest Agilent Sales and Service Office Input Connections for 1500W units CAUTION Connection of this power supply to an AC power source should be made by a qualified electrician or other qualified personnel Series N5700 User s Guide The AC input connector is a 3 terminal wire clamp located on the rear panel Use suitable wires and tightening torque as follows e Wire diameter 12 AWG or 10 AWG e Tightening torque 6 5 7 0 in lb Connect the cable to the AC input connector as follows e Strip the outside insulation of the AC cable approximately 10 cm 4 in Trim the wires so that the ground wire is
152. wer supply to accept any other calibration commands The first parameter specifies the enabled or disabled state On 1 or Off 0 The second parameter is the password A password is required if calibration mode is being enabled and the existing password is not 0 If the password is not entered or is incorrect an error is generated and the calibration mode remains disabled The query returns only the state not the password The RST value Off CALibrate VOLTage LEVel lt NR gt Measure Commands This command initiates the calibration of the output voltage The value that you enter selects the range that is being calibrated Measure commands measure the output voltage or current MEASure commands acquire new data before returning the reading Measurement overflows return a reading of 9 91E 37 MEASure SCALar CURRent DC MEASure SCALar VOLTage DC Series N5700 User s Guide These queries perform a measurement and return the DC output current in amperes or DC output voltage in volts 67 Output Commands Output Commands Output commands enable the output power on and protection functions OUTPut STATe lt Bool gt OUTPut STATe This command enables or disables the specified output s The enabled state is On 1 the disabled state is Off 0 The state of a disabled output is a condition of zero output voltage and a zero source current see RST The query returns 0 if the output is off a

Agilent Technologies J3972A Network Router User Manual

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