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7 Programming Examples

116

Series N6700 User’s Guide

' 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!" & vbCrLf & ErrString
End If
End With

End Sub

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Содержание N6700B

Страница 1: ...A A A A Agilent Technologies Modular Power System Series N6700 User s Guide...

Страница 2: ...om 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 I...

Страница 3: ...ified 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 D...

Страница 4: ...l of the SCPI programming commands Programming Examples Chapter 7 provides Visual Basic example programs that illustrate some common applications Specifications Appendix A describes specifications and...

Страница 5: ...te Sense Connections 24 Parallel Connections 25 Series Connections 26 3 Getting Started Turning the Unit On 30 Selecting an Output Channel 30 Entering an Output Voltage Setting 30 Entering a Current L...

Страница 6: ...ications Performance Specifications 118 Supplemental Characteristics 121 Autoranging Characteristic 128 Outline Diagram 128 Appendix B Verification and Calibration Verification 130 Calibration 151 App...

Страница 7: ...escribes the operation of the Agilent N6700 Modular Power System MPS This chapter does not describe every operating feature in detail It is simply a quick reference guide to quickly become familiar wi...

Страница 8: ...ources such as fixture controls The output and system features are described in the following sections Not all output features are available on every power module The Model Differences section describ...

Страница 9: ...you control the instrument directly from an internet browser on your computer Refer to Chapter 3 for details Real time status information The front panel indicates the status of each output It also in...

Страница 10: ...and the command menus Exit a menu and return to meter mode Select an output channel to display Numeric entry keys Enter values Increment or decrement values The Rear Panel At a Glance GPIB connector...

Страница 11: ...atus ALL SRQ ERR IO Multiple channel View Voltage and Current measurements Press the Meter key to toggle between views The highlighted channel is the active channel Grouped channel View Channels 2 thr...

Страница 12: ...ameters Output Keys On Off Voltage Current On Off controls the selected output or all outputs when ALL is lit This key is only active in Single channel or Multiple channel view Voltage lets you change...

Страница 13: ...ttings when the list terminates Config Configures list step voltage current dwell and trigger signals Reset Aborts the list and resets all list parameters TrigSource Specify the trigger source Bus Tra...

Страница 14: ...eferences Display Contrast Configures the display contrast Saver Configures the screen saver and wake on I O timer View Selects 1 channel or 4 channel view at turn on Keys Enables disables key clicks...

Страница 15: ...and line cord connections This chapter 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 loa...

Страница 16: ...t Sales Support Office Output Connector A 4 pin connector for connecting power and remote sense leads 1253 5826 or 1253 6211 model N6741B only Sense Jumpers Two jumpers per module for local sensing at...

Страница 17: ...afety 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 enviro...

Страница 18: ...f the standard extender supports are either too short or too long use the longer supports c Cut the supports if required d Step 3 Install the two rear ears on the back of the instrument rack as shown...

Страница 19: ...est channel in the group Cleaning 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...

Страница 20: ...ff AC power before making rear panel connections All wires and straps must be properly connected with the terminal block screws securely tightened Disconnect the connector plug to make your wire conne...

Страница 21: ...2 6 1 5 15 0 13 3 0 0137 14 6 7 2 3 6 2 5 23 5 20 8 0 0082 12 2 6 Notes 1 Capacity for AWG wires derived from MIL W 5088B Max ambient temp 55 C Max wire temp 105 C 2 Capacity for metric wires are der...

Страница 22: ...terminals or if one load is more sensitive than the others directly at the critical load Positive and Negative Voltages Either positive or negative voltages can be obtained from the output by groundi...

Страница 23: ...CV operation with load impedances that vary or have significant lead resistance It has no effect during CC operation Because sensing is independent of other power system functions remote sensing can b...

Страница 24: ...ack path Connect them in such a way so that they do not inadvertently become open circuited The power system includes protection resistors that reduce the effect of open sense leads during remote sens...

Страница 25: ...amming via the front panel or using SCPI commands Information about how to group output channels that have been connected in parallel is provided in Chapter 4 under System Related Operations as well a...

Страница 26: ...AZARD Floating voltages must not exceed 240 VDC No output terminal may be more than 240 VDC from chassis ground CAUTION Only connect outputs that have identical voltage and current ratings in series E...

Страница 27: ...cifications for outputs operating in series can be obtained from the specifications for single outputs Most specifications are expressed as a constant or a percentage or ppm plus a constant For series...

Страница 28: ......

Страница 29: ...t discusses turning the unit on using the front panel controls and navigating the front panel command menu A map of the front panel menu structure is found in chapter 1 This chapter also contains info...

Страница 30: ...ring an Output Voltage Setting Method 1 Use the Navigation and Arrow Keys Navigation Keys Sel Use the left and right navigation keys to navigate to the setting that you wish to change In the display b...

Страница 31: ...value Current Use the Current key to select the current entry field In the display below channel 1 s voltage setting is selected Enter the desired setting using the numeric keypad Then press Enter NOT...

Страница 32: ...output if the output voltage reaches the programmed over voltage limit Menu Press the Menu key to access the front panel command menu The first line identifies the output channel that is being contro...

Страница 33: ...the Meter key to immediately return to the metering screen This is the quickest way to return to metering mode Back Press the Back key to back up one level at a time in the command menu This method ma...

Страница 34: ...the Agilent IO Libraries Suite from the Automation Ready CD ROM that is shipped with your product 2 If you do not have a GPIB interface card installed on your computer turn off your computer and insta...

Страница 35: ...rument is recognized your computer will display the VISA alias IDN string and VISA address This information is located in the USB folder 4 Note that you can also view the instrument s VISA address fro...

Страница 36: ...need to manually configure any instrument LAN settings refer to Configuring the LAN Parameters later in this chapter for information about configuring the LAN settings from the front panel of the inst...

Страница 37: ...8 you may need to manually release the previous settings 3 The factory shipped instrument LAN settings are configured to automatically obtain an IP address from a site network using a DHCP server You...

Страница 38: ...modifications to take effect As shipped from the factory the power system s pre configured settings should work in most LAN environments If you need to manually configure these settings press the Menu...

Страница 39: ...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 Select Name to configure the hostname of the inst...

Страница 40: ...erver Select this item if you are not using DHCP or need to connect to a specific DNS server DNS Server This value is the address of the DNS server It is used if you are not using DHCP or if you need...

Страница 41: ...on your computer With the Web server you can access the front panel control functions including the LAN configuration parameters NOTE The built in Web server only operates over the LAN interface It r...

Страница 42: ...e made The socket programming interface also allows a control socket connection The control socket can be used by a client to send device clear and to receive service requests Unlike the data socket w...

Страница 43: ...ped from the factory the Admin menu password is 0 zero This means that you do not have to enter a password to access the Admin menu Simply select System Admin Login and press Enter To password protect...

Страница 44: ...1800 DNS server Blank Other factory shipped non volatile settings Admin Calibration password 0 zero On Off key affects all channels Disabled Calibration date March 5 2003 Output Inhibit mode Off Chann...

Страница 45: ...SCPI commands Refer to Chapters 5 and 6 for more information on programming your power system using SCPI commands The simple examples discussed in this chapter show you how to program output voltage...

Страница 46: ...e VOLT RANG 5 1 Set the Voltage Slew Rate NOTE The ability to program the voltage slew rate is only available on Agilent N6700 MPS mainframes with firmware revision B 00 00 and up Front Panel SCPI Com...

Страница 47: ...mplete its function To mitigate these built in delays you can program the output to zero volts rather than using the output on off function Sequence Multiple Outputs You can specify a turn on and turn...

Страница 48: ...voltage limit Front Panel SCPI Command Select Protect OVP Enter a value in the OVP level box and press Select To set the OVP level for outputs 1 and 2 to 10 V VOLT PROT 10 1 2 Set the Over Current Pr...

Страница 49: ...Step For current step triggering set the Current mode to Step Then press Select To enable the voltage function on output 1 to respond to triggers use VOLT MODE STEP 1 To enable the current function o...

Страница 50: ...ct Bus To select Digital pin triggers select Transient TrigSource Then select one of the digital port pins To select Transient output triggers select Transient TrigSource Then select one of the output...

Страница 51: ...ied to an input pin on the digital port connector If any of these systems are configured as the trigger source the instrument will wait indefinitely for the trigger signal If the trigger does not occu...

Страница 52: ...measurement capability Refer to Chapter 1 Model Differences In this case BOTH voltage and current are acquired on any measurement regardless of the parameter that is being measured To return both valu...

Страница 53: ...ns voltage current and power rating Front Panel SCPI Command Select System About Frame or Select System About Module IDN SYST CHAN MOD 1 SYST CHAN OPT 1 SYST CHAN SER 1 Instrument State Storage The po...

Страница 54: ...es should not be used with grouped channels otherwise a measurement overload error will occur Low current output ranges however can be used Over current protection delay has a slightly slower response...

Страница 55: ...Preferences Lock In the dialog box enter the password that will be required to unlock the front panel Then select Lock The menu to unlock the front panel appears every time a key is pressed Enter the...

Страница 56: ...so resets the timer on the screen saver As shipped Wake on I O is active Front Panel SCPI Command Select System Preferences Display Saver Enable or disable the screen saver by checking or unchecking t...

Страница 57: ...d a number of trigger sources can be selected to generate triggers With a trigger paced list you do not need to program a dwell time for each step If you do program a dwell time triggers that are rece...

Страница 58: ...p 0 and Press Select To program output 1 use LIST VOLT 15 1 LIST DWEL 1 1 Step 3 Set the list pacing to Auto so that as each dwell time elapses the next step is immediately output Front Panel SCPI Com...

Страница 59: ...UT EOST 1 0 1 You must program a value of 0 no trigger for step 1 as a placeholder Step 7 Specify the output state after the pulse has completed For example to return the output to the state it was in...

Страница 60: ...Press Select Repeat this for each step Use the keys to select the next step To program output 1 use LIST VOLT 9 0 6 0 3 0 1 Step 3 Determine the time interval in seconds that the output remains at ea...

Страница 61: ...in Step or Tout End Step field If a zero is entered no trigger is generated for the step Repeat this for each step Use the keys to select the next step To program a trigger at the beginning of step 4...

Страница 62: ...a function of the number of cycles of the ripple frequency contained in the acquisition window More cycles in the acquisition window results in better ripple rejection You can vary the measurement dat...

Страница 63: ...enerated Specify a Window Function Windowing is a signal conditioning process that reduces the error in average measurements made in the presence of periodic signals and noise Two window functions are...

Страница 64: ...able FETC ARR VOLT 1 4 FETC ARR CURR 1 4 If a FETCh query is sent before the measurement is started or before it is finished the response will be delayed until the measurement trigger occurs and the a...

Страница 65: ...r source from the following Bus Selects GPIB device trigger TRG or GET Group Execute Trigger Pin number Selects a pin on the external port connector as the trigger source The selected pin must be conf...

Страница 66: ...ment system each time a triggered measurement is desired Trigger the Measurement The trigger system is waiting for a trigger signal in the initiated state You can immediately trigger the measurement a...

Страница 67: ...chapter 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...

Страница 68: ...en sending several commands within a single message Use a semicolon to separate commands within a message There is an implied header path that affects how commands are interpreted by the power system...

Страница 69: ...The following message shows how to combine commands from different subsystems as well as within the same subsystem VOLTage LEVel 7 5 1 PROTection 10 1 CURRent LEVel 0 5 1 Note the use of the optional...

Страница 70: ...lways be correct because the commands are not executed until the message terminator is received Because the range and setting information is received as a set no range setting conflict occurs SCPI Mes...

Страница 71: ...he order they are specified in the list NOTE When adding a channel list parameter to a query you must include a space character between the query indicator and the channel list parameter Otherwise err...

Страница 72: ...ta Formats Conventions The following SCPI conventions are used throughout this guide Angle brackets Items within angle brackets are parameter abbreviations For example NR1 indicates a specific form of...

Страница 73: ...s 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 Bool Boolean Data They can be numeric 0 1 or named ON OFF SPD S...

Страница 74: ...output on command has completed OUTPut ON 1 WAI MEASure CURRent 1 OPC This command places a 1 in the Output Queue when all pending operations have completed Because it requires your program to read th...

Страница 75: ...sed here and gives an introduction to programming You should also be familiar with chapter 4 in order to understand how the power system functions Subsystem commands are specific to instrument functio...

Страница 76: ...VOLTage LEVel NRf channel Calibrates the output voltage programming CMRR channel Calibrates common mode rejection ratio N6751A 52A 61A 62A MEASure NRf channel Calibrates the voltage measurement DISPl...

Страница 77: ...bles disables over current protection on the selected output RANGe NRf chanlist Sets the output current range Agilent N6761A 62A DIGital INPut DATA Reads the state of the digital port pins OUTPut DATA...

Страница 78: ...register NTRansition NRf chanlist Sets the Negative transition filter PTRansition NRf chanlist Sets the Positive transition filter SYSTem CHANnel COUNt Returns the number of output channels in a main...

Страница 79: ...on Function Note 1 Measurement continued CAL STAT OFF SENS SWE OFFS POIN 0 Current Function SENS SWE TINT 20 48E 6 SOUR CURR 80 mA SENS VOLT RANG MAX SOUR CURR MODE FIX SENS WIND RECT SOUR CURR PROT S...

Страница 80: ...selects the range that is being calibrated CALibrate CURRent PEAK channel This command initiates calibration of the peak current limit CALibrate DATA value This command enters a calibration value that...

Страница 81: ...g CALibration STATe OFF without first saving the new constants the previous constants are restored CALibrate STATe ON OFF password CALibrate STATe This command enables or disables calibration mode Cal...

Страница 82: ...ou enter selects the range that is being calibrated Display Subsystem The display subsystem lets you control the front panel display DISPlay WINDow VIEW METER1 METER4 DISPlay WINDow VIEW This command...

Страница 83: ...ve simultaneous voltage and current measurement capability In this case BOTH voltage and current are acquired regardless of the parameter that is being measured To return both values of a simultaneous...

Страница 84: ...than the maximum current that you expect to measure Units are in amperes The instrument selects the range with the best resolution for the value entered When queried the returned value is the maximum...

Страница 85: ...med value must be the maximum voltage that you expect to measure Units are in volts The instrument selects the range with the best resolution for the value entered When queried the returned value is t...

Страница 86: ...s the output on command may take between 35 and 50 milliseconds to complete its function Conversely the output off command may take between 20 and 25 milliseconds to complete its function To mitigate...

Страница 87: ...in increments of 1 millisecond This command allows multiple output channels to turn on in sequence Each output will not turn on until its delay time has elapsed The RST value 0 NOTE Refer to the note...

Страница 88: ...tdown occurs during an output list the list continues running even though the output is disabled When the protection status is cleared and the output becomes enabled again the output will be set to th...

Страница 89: ...MODE FIXed STEP LIST chanlist SOURce CURRent MODE chanlist These commands determine what happens to the output current when the transient system is initiated and triggered FIXed The output voltage re...

Страница 90: ...essage When the range and setting information is received as a set no range setting conflict occurs The RST value the highest available range NOTE If programming a range value causes a range change to...

Страница 91: ...asurement and transient trigger signals FAULt Applies only to pin 1 Setting FAULt means that pin 1 functions as an isolated fault output The fault signal is true when any output is in a protected stat...

Страница 92: ...rammed in the current list Applies only to models with list capability SOURce LIST DWELl time time chanlist SOURce LIST DWELl chanlist This command specifies the dwell time for each list step Applies...

Страница 93: ...to the settings it was at before the list started The RST value OFF SOURce LIST TOUTput BOSTep DATA ON OFF ON OFF chanlist SOURce LIST TOUTput BOSTep DATA chanlist This command specifies which list s...

Страница 94: ...s a stored value that is transferred to the output when a Step transient is triggered This command is coupled with SOURce VOLTage RANGe The RST value MIN SOURce VOLTage MODE FIXed STEP LIST chanlist S...

Страница 95: ...tch occurs The transition from on to off and then from off to on will also be delayed by the settings of OUTPut DELay FALL and OUTPut DELay RISE SOURce VOLTage SLEW IMMediate value MIN MAX INF chanlis...

Страница 96: ...same register types as the Status Operation group The outputs of the Questionable Status group are logically ORed into the QUEStionable summary bit 3 of the Status Byte register Standard Event Status...

Страница 97: ...2 128 8 16 32 128 RQS OPER MSS ESB MAV QUES 4 5 6 7 UNR OT OV 0 4 QUESTIONABLE STATUS IDENTICAL REGISTERS FOR EACH CHANNEL 10 CONDITION LOGICAL OR EVENT ENABLE QSUM CHAN 1 SAME AS CHAN 1 LOGICAL OR PT...

Страница 98: ...as follows Bit Position 15 5 4 3 2 1 0 Bit Value 16 8 4 2 1 Bit Name WTG tran WTG meas OFF CC CV WTG tran The transient system is waiting for a trigger WTG meas The measurement system is waiting for...

Страница 99: ...tion Condition register can set the corresponding bit in the Operation Event register STATus QUEStionable EVENt chanlist This query returns the value of the Questionable Event register The Event regis...

Страница 100: ...ing actions When a 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 r...

Страница 101: ...t Status Event register Reading the register clears it The bit configuration is the same as the Standard Event Status Enable register see ESE OPC OPC The command is mainly used for program synchroniza...

Страница 102: ...ueue MAV bit Reading the Status 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...

Страница 103: ...YSTem COMMunicate RLSTate This command configures the remote local state of the instrument according to the following settings LOCal The instrument is set to front panel and remote interface control R...

Страница 104: ...as a group they can be addressed using any of the channel specific SCPI commands by sending the channel number of the lowest channel in the group Group channel lists are stored in non volatile memory...

Страница 105: ...o identify itself It returns a string of four fields separated by commas Field Information Agilent Technologies N67xxA 0 A xx xx Manufacturer Mainframe model number followed by a letter suffix Zero or...

Страница 106: ...tate of the power system to the specified location in non volatile memory Up to 2 states can be stored in locations 0 and 1 Any state previously stored in the same location will be overwritten Use the...

Страница 107: ...n to occur If the trigger system is not initiated all triggers are ignored It takes a few milliseconds for the power supply to be ready to receive a trigger signal after receiving the INITiate command...

Страница 108: ...tiate the output trigger system before you can send any triggers When sent the output trigger will Initiate an output change as specified by the Current Triggered or Voltage Triggered commands Clears...

Страница 109: ...n any way you find useful provided you agree that Agilent Technologies has no warranty obligations or liability for any example programs The example programs are written in Microsoft Visual Basic 6 0...

Страница 110: ...y to initialize the VISA COM Dim ioMgr As AgilentRMLib SRMCls Dim Instrument As VisaComLib FormattedIO488 The following command line provides the program with the VISA name of the interface that it wi...

Страница 111: ...String CURR PROT STAT ON channel Turn the output on WriteString OUTP ON channel Wait for previous commands to complete WriteString OPC ReadString Measure the voltage WriteString MEAS VOLT channel Meas...

Страница 112: ...r USB communication USBaddress USB0 2391 1799 US00000002 Initialize the VISA COM communication Set ioMgr New AgilentRMLib SRMCls Set Instrument New VisaComLib FormattedIO488 Set Instrument IO ioMgr Op...

Страница 113: ...ON state WriteString OPC ReadString Set the trigger source to bus WriteString TRIG TRAN SOUR BUS channel Initiate the transient system WriteString INIT TRAN channel Trigger the unit WriteString TRG C...

Страница 114: ...wing command line provides the program with the VISA name of the interface that it will communicate with It is currently set to use GPIB GPIBaddress GPIB0 5 INSTR Use the following line instead for LA...

Страница 115: ...points for the measurement system to use as an offset WriteString SENS SWE OFFS POIN Str measOffset channel Set the number of points that the measurement system uses WriteString SENS SWE POIN Str mea...

Страница 116: ...6 Series N6700 User s Guide 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 vbCrLf ErrStrin...

Страница 117: ...he mainframe is included at the end of the chapter Unless otherwise noted specifications are warranted over the ambient temperature range of 0 to 55 C Sensing is at the output terminals of the power s...

Страница 118: ...6 19 mV 0 016 6 mV Voltage low range 5 5 V N A 0 016 1 5 mV Current high range 0 1 20 mA 0 04 200 A Current low range 100 mA 0 7 V 100 mA 0 50 V N A N A 0 04 15 A 0 04 55 A Measurement Accuracy at 23...

Страница 119: ...mV 4 mV 6 mV Current 2 mA 2 mA 2 mA 2 mA 2 mA Source Effect Regulation Voltage 1 mV 2 mV 2 mV 4 mV 6 mV Current 1 mA 1 mA 1 mA 1 mA 1 mA Programming Accuracy 23 C 5 C after 30 minute warm up Applies f...

Страница 120: ...V 30 mV Current 2 mA 2 mA 2 mA 2 mA 2 mA 2 mA Source Effect Regulation Voltage 1 mV 2 mV 2 mV 4 mV 6 mV 10 mV Current 1 mA 1 mA 1 mA 1 mA 1 mA 1 mA Programming Accuracy 23 C 5 C after 30 minute warm u...

Страница 121: ...V Current high range 100 ppm 45 A 33 ppm 10 A Current low range 0 1 A N A 60 ppm 1 5 A Measurement Temperature Coefficient per C Voltage high range 25 ppm 35 V 23 ppm 40 V Voltage low range 5 5 V N A...

Страница 122: ...g Settling Time with no load time from start of voltage change to output voltage within 50mV of final value Voltage setting from 10 V to 0 V 0 45 ms 0 45 ms Voltage setting from 50 V to 0 V 1 4 ms 1 4...

Страница 123: ...A Phase IMPEDANCE milliohms 100 Magnitude 1k 320 160 80 40 20 10 5 2 5 135 90 45 0 45 FREQUENCY Hz 10k 100k Model N6762A CV Mode 50V 2A PHASE degrees Phase 100 Magnitude 1k 8 4 2 1 0 5 0 25 0 125 0 06...

Страница 124: ...Accuracy 0 25 250 mV 0 25 250 mV 0 25 250 mV 0 25 250 mV 0 25 300 mV Maximum setting 7 V 10 V 22 V 38 5 V 55 V Response time 50 s from occurrence of over voltage condition to start of output shutdown...

Страница 125: ...mA 10 mA 10 mA Over voltage Protection Accuracy 0 25 50mV 0 25 50 mV 0 25 75 mV 0 25 100 mV 0 25 200 mV 0 25 250 mV Maximum setting 7 5 V 10 V 22 V 38 5 V 66 V 110 V Response time 50 s from occurrence...

Страница 126: ...mA Maximum low level sink current 100 mA Typical high level leakage current 0 12 mA 16 5 VDC Maximum low level input voltage 0 8 V Minimum high level input voltage 2 V Typical low level current 2 mA 0...

Страница 127: ...nuary 1991 Sound Pressure Lp 70 dB A At Operator Position Normal Operation According to EN 27779 Type Test Schalldruckpegel Lp 70 dB A Am Arbeitsplatz Normaler Betrieb Nach EN 27779 Typpr fung Output...

Страница 128: ...V 33 V Voltage 1 A 2 A 1 5 A 3 A Current 50 W output 100 W output Autoranging 50 W Output Precision Outputs 0 50 V 10 A 12 V 2 A Voltage Current Autoranging 100 W Output 100 W curve 50 W curve 8 5 V...

Страница 129: ...ration procedures for the power system Instructions are given for performing the procedures from either the front panel or a controller over the GPIB NOTE Perform the verification tests before calibra...

Страница 130: ...ppm Agilent 3458A or equivalent Current Monitor 15 A 0 1 ohm TC 4ppm C all models except N6741B 30 A 0 1 ohm TC 4ppm C model N6741B only Guildline 9230A 15R Guildline 9230A 30 Load Resistors 50 250 W...

Страница 131: ...compared to computers and system voltmeters settling times and slew rates of the power system may have to be taken into account Wait statements can be used in the test program if the test system is fa...

Страница 132: ...d form under Voltage Programming Readback High Voltage 5 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...

Страница 133: ...ent drops slightly 5 Adjust the transformer or AC source to the lowest rated line voltage 86 VAC 6 Record the output voltage reading from the DVM 7 Adjust the transformer or AC source to the highest r...

Страница 134: ...he 50 ohm termination Divide the reading of the rms voltmeter by 10 The result should not exceed the rms limits in the test record form for the appropriate model under CV Ripple and Noise rms Transien...

Страница 135: ...shunt by the shunt resistance to convert to amps and record this value Iout Also record the current reading on the front panel display The readings should be within the limits specified in the test r...

Страница 136: ...drop DVM reading across the current monitoring resistor by its resistance to convert to amps and record this value Iout 6 Short the electronic load Divide the voltage drop DVM reading across the curre...

Страница 137: ...former or AC source to the lowest rated line voltage 86 VAC 7 Divide the voltage drop DVM reading across the current monitoring resistor by its resistance to convert to amps and record this value Iout...

Страница 138: ...________ 75 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6751A N6752A N6751A N6752...

Страница 139: ...imum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6761A N6762A N6761A N6762A 0 8 mA Iout 160 A 1 4992 A 2 9986 A Iout 0 76 mA Iout 1 36 mA ______...

Страница 140: ...____ __________ 10 mV 2 mV Transient Response Voltage at 200 s 80 mV __________ 80 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current...

Страница 141: ...________ 80 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6732A N6742A N6732A N6742...

Страница 142: ...___ 200 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6733A N6743A N6733A N6743A 10...

Страница 143: ...____ 200 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6734A N6744A N6734A N6744A 1...

Страница 144: ..._ 200 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6735A N6745A N6735A N6745A 10 m...

Страница 145: ...N6741B 80 mV 100 mV __________ __________ 80 mV 100 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readb...

Страница 146: ..._________ 80 mV 100 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6732B N6742B N673...

Страница 147: ...___ __________ 200 mV 300 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6733B N6743...

Страница 148: ...____ __________ 200 mV 300 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6734B N674...

Страница 149: ...0 mV __________ __________ 400 mV 500 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both...

Страница 150: ...mV __________ __________ 500 mV 1000 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both...

Страница 151: ...must perform the complete calibration procedure in its entirety As each calibration section is completed the instrument calculates new calibration constants and begins using them However these constan...

Страница 152: ...an output channel Step 2 Select the full scale voltage programming and measurement range The following example selects the 50 volt full scale range of channel 1 The value entered must be the maximum...

Страница 153: ...System Admin Cal Function Vprog Then select the Low range CAL VOLT 5 1 Step 8 Select the first voltage calibration point Front Panel SCPI Command Select Next The information field should indicate Ent...

Страница 154: ...Enter the data from the external DVM Press Select when done CAL DATA data Step 15 Select the second voltage calibration point Front Panel SCPI Command Select Next The information field should indicate...

Страница 155: ...ts the 10 amp full scale current programming and measurement range of channel 1 The value to program a range must be the maximum current of the range Front Panel SCPI Command Select System Admin Cal F...

Страница 156: ...firmware revisions refer to Appendix E Step 25 Connect only the current measurement terminals of the Agilent 3458A to the output terminals Step 26 Select the low current measurement range The followin...

Страница 157: ...e low current programming range The following example selects the 0 1 amp low current programming range of channel 1 The value to program a range must be the maximum current of the range Front Panel S...

Страница 158: ...bration Front Panel SCPI Command Select System Admin Cal Function IPeak CAL CURR PEAK 1 Step 39 Select the first current calibration point Front Panel SCPI Command Select Next The calibration is autom...

Страница 159: ...TE date 1 To save calibration data CAL SAVE To exit calibration mode CAL STAT OFF Change the Admin Calibration Password The password must be numeric and can be up to 15 digits in length After it has b...

Страница 160: ......

Страница 161: ...r configurable The following control functions are available for the I O pins Bi directional Digital I O Digital Input only External Trigger Fault Output Inhibit Input NOTE Agilent N6700A mainframes u...

Страница 162: ...onfiguration for the available control functions For a complete description of the electrical characteristics of the digital I O port refer to Appendix A Pin External Trigger Fault Inhibit Digital I O...

Страница 163: ...ng figure illustrates typical relay circuits as well as digital interface circuit connections using the digital I O functions For a complete description of the electrical characteristics of the digita...

Страница 164: ...mmon for pin 1 This arrangement provides an optically isolated output Pin 2 s selected function is ignored Note that the Fault output signal remains latched until the fault condition is cleared You mu...

Страница 165: ...daisy chained system protection configuration two fault conditions must be removed 1 The initial protection fault or external Inhibit signal 2 The subsequent daisy chained fault signal which is source...

Страница 166: ...e the pin function DIG PIN FUNC DIO To configure pin polarity DIG PIN POL pol To send data to the pins DIG OUTP DATA data Digital Input Each of the seven pins can be configured as digital input only T...

Страница 167: ...OL pol Inhibit Input Pin 3 can be configured as a remote inhibit input The polarity of pin 3 can also be configured Front Panel SCPI Command Select System DigPort Pin3 Select Function then Inhibit In...

Страница 168: ......

Страница 169: ...ing modules accessing the calibration switch and installing a redundant ground is also provided This chapter also includes troubleshooting procedures for the N6700A and N6700B MPS mainframes Troublesh...

Страница 170: ...be too light or too dark Use the front panel menu to set the display contrast Does the instrument fail self test Remove all external connections to the instrument Check that modules are installed nex...

Страница 171: ...conductive wrist strap to reduce static accumulation Minimize handling Keep replacement parts in original static free packaging Remove all plastic foam vinyl paper and other static generating material...

Страница 172: ...module installed to ensure proper cooling Do not install filler modules between power modules Step 1 Remove the blower cover Remove three screws from the top of the cover and two screws on the sides...

Страница 173: ...he cover up and slide it out Step 2 Remove the interface cover Remove the three screws along the left side of the unit Then remove the screw at the front of the cover Lift off the cover Step 3 The cal...

Страница 174: ...A mainframes only also remove the interface board Step 3 Disconnect all cable assemblies from the carrier bias board Step 4 Use a T10 driver and remove the screws that attach the carrier bias board to...

Страница 175: ...point The following procedure only describes how to make the permanent connection at the unit The user must ensure the integrity and permanence of the connection at the earth ground point The followi...

Страница 176: ...the chassis with the washer and nut 3 Step 5 Rotate the ring terminal so that the ground wire does not interfere with any other connectors on the back of the unit Use the wrench and tighten the bindi...

Страница 177: ...YES Check for 48V from A2 bulk supply Perform carrier bias assembly troubleshooting Perform backplane assembly troubleshooting YES Go to Sheet 2 NO Is bulk supply fan running NO YES YES Check the lin...

Страница 178: ...ware revision Update firmware if required Replace the output module YES NO NO Not getting full output Perform verification procedures in User s guide Calibrate the output if required Replace the outpu...

Страница 179: ...module contains correct options Check for latest firmware revision and update if required Replace the output module YES NO Digital port not working Perform carrier bias assembly troubleshooting Repla...

Страница 180: ...the board Refer to the following table and figures Note that if the bias voltages at test points 2 4 in the following table are not present it could be caused by a defect in the power module or inter...

Страница 181: ...Service Appendix D Series N6700 User s Guide 181 2 3 4 1 COMMON COMMON N6700B BIAS BOARD A4 N6700A CARRIER BOARD A4...

Страница 182: ...d to prevent access to the front panel Admin menu will also be lost The calibration password will automatically be reset to the factory default which is zero 0 Front panel access to the Admin menu wil...

Страница 183: ...eypad 5 2090 0886 2090 0886 Display 6 4040 2556 4040 2556 Window 7 N6700 00001 N6700 00001 Front panel 8 3101 4019 3101 4019 Line switch 9 5185 1358 5185 1358 Cable bulk supply to ground 10 5185 1357...

Страница 184: ...184 Series N6700 User s Guide N6700B Mainframe Part Locations 3 4 5 6 7 8 1 2 9 10 11 12 13 14 15 A1 A2 A3 A4 A5 16 17 18 19 blue stripe faces right red stripe faces back blue stripes face back blue...

Страница 185: ...D Series N6700 User s Guide 185 N6700A Mainframe Part Locations 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 17 18 19 A1 A2 A3 A4 A5 blue stripe faces back red stripe faces back blue stripes face left blue st...

Страница 186: ...d sequence of calibration commands Calibration commands have not been entered in the proper sequence 105 Unexpected output current The measured output current is outside the acceptable range 106 Zero...

Страница 187: ...er 304 Volt and curr in incompatible transient modes Voltage and current cannot be in Step and List mode at the same time 305 A triggered value is on a different range A triggered value is on a differ...

Страница 188: ...The mantissa of a numeric parameter contained more than 255 digits excluding leading zeros 128 Numeric data not allowed A numeric parameter was received but a character string was expected 130 Suffix...

Страница 189: ...xecuted because the value was outside the valid range 223 Too much data A data element was received that contains more data than the instrument can handle 224 Illegal parameter value An exact value wa...

Страница 190: ...the measured value n4 is the channel location of the failed module 202 Selftest Fail DACs 0 expected n1 to n2 measured n3 chan n4 Both voltage and current DACs are at zero n1 and n2 are the expected l...

Страница 191: ...ainframes also contain Agilent N675xA or N676xA power modules Pre configured Agilent MPS Model1 Description Previous Agilent Model N6721A N6700A mainframe with 2 N6752A autoranging modules 6621A N6722...

Страница 192: ...r Status functions Serial Poll will be controlled by the SCPI status model and will not act like a 662xA serial poll SRQ will be controlled by the SCPI status model Parallel poll will not work The Agi...

Страница 193: ...DCPON on off Sets the power on state of the output channels For on off 0 all outputs will be off state when the unit is turned on For on off 1 all outputs will be in the on state when the power system...

Страница 194: ...S CURR RANG ISET ch current Sets the current of the specified output channel CURR ISET ch Queries the present current setting of the specified output channel The response is a real number CURR ISTEP c...

Страница 195: ...pecified channel This Option 750 capability is supported OUTP PROT CLE ROM Queries the revision of the power system s firmware IDN SROM Queries the revision of the power system s firmware IDN SRQ sett...

Страница 196: ...perating voltage is greater than the full scale range selected the present output voltage will be reduced to the full scale value of the new range selected If the voltage entered is larger than the hi...

Страница 197: ...AN Connector Agilent N6700A mainframes use mini B USB connector Binding Post Agilent N6700A mainframes use a longer hex shaped chassis ground binding post on the rear panel Firmware Differences The fo...

Страница 198: ...ist and resets all list parameters TrigSource Specify the trigger source bus tran 1 4 pin 1 3 Control Initiate Trigger or Abort output triggers Protect OVP Configures over voltage protections function...

Страница 199: ...y ResetNVRam Resets all non volatile RAM settings to their factory defaults Error Displays the Error log Calibrate State Enables disables calibration You must supply a password to enable Sequence VPro...

Страница 200: ...ps and go to step 29 Wait a minimum of 4 minutes for the internal temperature to stabilize Then select the first current calibration point Front Panel SCPI Command Select Next The information field sh...

Страница 201: ...TA 80 CAL DATE 80 CAL DPR 80 CAL LEV 81 CAL PASS 81 CAL SAVE 81 CAL STAT 81 CAL VOLT 81 CAL VOLT CMRR 81 CAL VOLT MEAS 82 capacitor external 22 Caution 3 CC 98 load effect 136 source effect 136 channe...

Страница 202: ...s board 174 front panel 174 interface board 174 ribbon cables 171 display commands 82 DISP VIEW 82 DNS server 40 Domain name 40 E electronic load 131 electrostatic discharge precautions 171 environmen...

Страница 203: ...r generate 66 initiate 66 source 65 measurements arrays 64 converter 64 Hanning window 63 Rectangular window 63 sample interval 62 simultaneous V and I 52 message separator 72 message terminator end o...

Страница 204: ...parts list 183 replaceable parts location 184 185 reset states 79 response data types 73 returning units 170 root specifier 72 RQS 96 102 S safety 3 class 17 warning 17 sample interval 62 SCPI comman...

Страница 205: ...SYST CHAN OPT 103 SYST CHAN SER 103 SYST COMM RLST 103 SYST COMM TCP CONT 103 SYST ERR 104 SYST GRO CAT 104 SYST GRO DEF 104 SYST GRO DEL 104 SYST GRO DEL ALL 104 SYST PASS FPAN RES 105 SYST REB 105 S...

Страница 206: ...ms with the following product standards EMC Standard IEC 61326 1997 A1 1998 A2 2000 EN 61326 1997 A1 1998 A2 2001 CISPR 11 1997 EN 55011 1998 IEC EN 61000 4 2 1995 A1 1998 A2 2001 IEC EN 61000 4 3 200...

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