Agilent Technologies N5700 Series User Manual
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Agilent Technologies N5700 Series User Manual

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System DC Power Supply
Series N5700
User's Guide
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Summary of Contents for Agilent Technologies N5700 Series

  • Page 1 Agilent Technologies System DC Power Supply Series N5700 User’s Guide ...

  • Page 2: Legal Notices

    Legal Notices Waste Electrical and Assistance Electronic Equipment (WEEE) © Agilent Technologies, Inc. 2004 - 2006 This product comes with the standard Directive 2002/96/EC product warranty. Warranty options, No part of this document may be extended support contacts, product photocopied, reproduced, or translated to...

  • Page 3: Safety Notices

    Safety Notices Do Not Operate in an Explosive Safety Symbols Atmosphere Direct current The following general safety precautions Do not operate the instrument in the must be observed during all phases of Alternating current presence of flammable gases or fumes. operation of this instrument.
  • Page 4 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 NOTE numbers for warranty, service, or technical support information.

  • Page 5: Table Of Contents

    Contents 1 Quick Reference The Agilent N5700 DC Power Supplies – At a Glance ......... 8 The Front Panel - At a Glance................. 10 The Rear Panel – At a Glance................. 12 2 Installation General Information..................16 Inspecting the Unit ................... 17 Installing the Unit....................
  • Page 6 6 Programming Examples Output Programming Example ................ 82 Trigger Programming Example................ 84 Appendix A Specifications Performance Specifications ................88 Supplemental Characteristics ................. 89 Outline Diagram....................91 Appendix B Verification and Calibration Verification ......................94 Calibration ......................113 Appendix C Service Types of Service Available................116 Repackaging for Shipment................116 Operating Checklist..................116 Error Messages ....................118...

  • Page 7: Quick Reference

    Glance................. 10 The Rear Panel – At a Glance................. 12 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 guide to quickly become familiar with the essential components of the power supply.

  • Page 8: The Agilent N5700 Dc Power Supplies - At A Glance

    1 Quick Reference The Agilent N5700 DC Power Supplies – At a Glance The Agilent Technologies Series N5700 System DC Power Supplies are general-purpose, 1U (rack unit) high, switching power supplies that are available with a wide variety of output voltage and current ratings.

  • Page 9: Programmable Functions

    Quick Reference 1 Programmable Functions • 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. •...

  • Page 10: The Front Panel - At A Glance

    1 Quick Reference The Front Panel - At a Glance VOLTAGE CURRENT DC VOLTS DC AMPS LIMIT/ UVL OCP/488 OUT ON PROT FINE POWER 1 – VOLTAGE knob Voltage function: Adjusts the output voltage, the over-voltage protection level, and the under-voltage limit.
  • Page 11 Quick Reference 1 9 – LAN button View address: Press LAN to view the IP and Ethernet address. The display first scrolls through the four segments of the IP address, followed by the six segments of the Ethernet (EA) address. Press any key to turn the address display off. Reset address: Press and hold the LAN button for three seconds.

  • Page 12: The Rear Panel - At A Glance

    1 Quick Reference The Rear Panel – At a Glance 10/100 Ethernet LINK GPIB J2 SW1 1 2 3 4 5 6 7 8 9 ANALOG PROGRAMMING AC INPUT +S+LS NC -LC-S NOT ACTIVE 80V - 600V 750W 6V - 60V 1500W 1 –...
  • Page 13 Quick Reference 1 J2 Sense Connector 1 – Remote sense (+) 2 – Local sense (+) 3 – Not used 4 – Local sense (–) 5 – Remote sense (–) The factory-shipped configuration is shown in the figure. SW1 Setup Switch The factory-shipped setting is Down for all switches.
  • Page 14 1 Quick Reference J1 Analog Programming Connector Voltage Monitor Current Program Chassis Common Voltage Program Common (-S) Chassis Common CV / CC Local / Analog Enable + Parallel Enable -- Current Monitor Shut Off Current Prog. Return Power Supply OK Voltage Prog.

  • Page 15: Installation

    Installation General Information..................16 Inspecting the Unit ................... 17 Installing the Unit....................17 Connecting the Line Cord ................19 Connecting the Load..................21 Output Voltage Sensing ................... 24 Load Considerations ..................26 Parallel Connections..................28 Series Connections................... 30 J1 Connector Connections ................

  • Page 16: General Information

    2 Installation General Information Models 750 W Models 1500 W Models N5741A – N5749A N5761A – N5769A N5750A – N5752A N5770A – N5772A Items Supplied Item Description Power Cord A power cord appropriate for your location 750W units are supplied with terminated power cords 1500W units are supplied with unterminated power cords Strain relief assembly A strain relief assembly for unterminated power cords...

  • Page 17: Inspecting The Unit

    Installation 2 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.

  • Page 18: Rack Installation

    2 Installation Rack Installation Ensure that the screws used to attach the rack slide kit do not penetrate more CAUTION than 6 mm into the sides of the unit. Do not block the air intake at the front, 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.

  • Page 19: Connecting The Line Cord

    Installation 2 Connecting the Line Cord SHOCK HAZARD The power cord provides a chassis ground through a third WARNING 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.
  • Page 20 2 Installation • Unscrew the base of the strain relief from the wire compression nut. Place the locknut inside the AC input cover with the flat side of the nut against the cover. Insert the base through the outside opening of the AC input cover. Screw the base securely onto the locknut from the outside (17 ft-lbs).

  • Page 21: Connecting The Load

    Installation 2 Connecting the Load SHOCK HAZARD Turn off AC power before making rear panel connections. WARNING All wires and straps must be properly connected with screws securely tightened. As further explained in this section, the following factors should be considered when selecting wiring to connect the load to the power supply: •...
  • Page 22 2 Installation Cross section Resistance Maximum length in meters to limit voltage to 1 V Ω Ω Ω Ω /kilometer for 5 A for 10 A for 20A for 50A for 150A 8.21 24.0 12.0 5.09 39.2 18.6 3.39 59.0 29.4 14.8 1.95...
  • Page 23 Installation 2 Install the shield after you have finished connecting the load wires. Shield Load Connections for 80V to 600V Models SHOCK HAZARD Hazardous voltages may exist at the outputs and the load WARNING 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.

  • Page 24: Output Voltage Sensing

    2 Installation • Loosen the two chassis screws marked A halfway. • Assemble the protective shield to the chassis and tighten the two screws to fix the shield to the chassis. Screw tightening torque: 4.8-5.3 in-lb • Tighten the wires to one of the shield sides using tie-wrap or equivalent.

  • Page 25: Local Sensing

    Installation 2 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-lb.) Local Sensing The power supply is shipped with the rear panel J2 sense connector wired for local sensing of the output voltage.

  • Page 26: Load Considerations

    2 Installation To configure the power supply for remote sensing: • Turn off the power supply. • Remove the local sense jumpers from the J2 connector. • 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.
  • Page 27 Installation 2 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.

  • Page 28: Parallel Connections

    2 Installation Battery Charging If a battery or external voltage source is connected across the output and the CAUTION output is programmed below the battery or external voltage source, the power supply will continuously sink current from the external source. This could damage the power supply.

  • Page 29: Setting Up The Master Unit

    Installation 2 As short as possible MASTER Twisted POWER SUPPLY pair J1-25 Parallel LOAD Current Program J1-8 J1-12 J1-10 SLAVE POWER SUPPLY Local Sensing Twisted pair As short as possible MASTER Twisted POWER SUPPLY pair J1-25 Parallel LOAD Current Program J1-8 J1-12 J1-10 SLAVE...

  • Page 30: Series Connections

    2 Installation Setting up the Slave Units 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. Also connect a short between J1 pin 8 and J1 pin 12.
  • Page 31 Installation 2 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. POWER POWER SUPPLY...

  • Page 32: J1 Connector Connections

    2 Installation J1 Connector Connections SHOCK HAZARD There is a potential shock hazard at the J1 connector when WARNING 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.
  • Page 33 Operating the Power Supply Locally Turn-On Check-Out ................... 34 Normal Operation....................36 Protection Functions ..................37 Output On/Off Controls..................40 Analog Programming of Output Voltage and Current......... 42 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.

  • Page 34: Operating The Power Supply Locally

    3 Operating the Power Supply Locally Turn-On Check-Out Before Turn-On 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. •...
  • Page 35 Operating the Power Supply Locally 3 UVL Check • 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.

  • Page 36: Normal Operation

    3 Operating the Power Supply Locally 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.

  • Page 37: Protection Functions

    Operating the Power Supply Locally 3 CV/CC Mode Crossover 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.
  • Page 38 3 Operating the Power Supply Locally • Press the OUT ON button to turn the output on. • Turn the AC power off, wait a few seconds, and turn it on. • Turn the output off, then on again using the Shut Off pin on the J1 connector.
  • Page 39 Operating the Power Supply Locally 3 Over-Temperature Protection The over-temperature protection circuit shuts down the power supply before the internal components can exceed their safe internal operating temperature. This can occur if there is a cooling fan failure. 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.

  • Page 40: Output On/Off Controls

    3 Operating the Power Supply Locally Output On/Off Controls The Output On/Off controls turn 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.
  • Page 41 Operating the Power Supply Locally 3 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.

  • Page 42: Analog Programming Of Output Voltage And Current

    3 Operating the Power Supply Locally Power Supply OK Signal 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.
  • Page 43 Operating the Power Supply Locally 3 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. With analog programming enabled, you cannot program the output voltage or NOTE current using the front panel knobs or the remote interface.
  • Page 44 3 Operating the Power Supply Locally • Set the programming sources to the desired levels and turn the power supply on. Adjust the programming sources to change the power supply output. The analog control circuits let you set the output voltage and current limit up to 5% over the model-rated maximum value.
  • Page 45 Operating the Power Supply Locally 3 • Set the programming resistors to the desired resistance and turn the power supply on. Adjust the resistors to change the power supply output. The analog control circuits let you set the output voltage and current limit up to 5% over the model-rated maximum value.

  • Page 47: Operating The Power Supply Remotely

    Operating the Power Supply Remotely Connecting to the Interfaces ................48 SCPI Commands – an Introduction..............58 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.

  • Page 48: Connecting To The Interfaces

    4 Operating the Power Supply Remotely Connecting to the Interfaces The Agilent N5700 power supplies support remote interface communication using a choice of three interfaces: GPIB, USB, and LAN. All three interfaces are live at power-on. GPIB Interface For detailed information about GPIB interface connections, refer to the Agilent NOTE Technologies USB/LAN/GPIB Interfaces Connectivity Guide, located on the Automation-Ready CD-ROM that is shipped with your product.
  • Page 49 Operating the Power Supply Remotely 4 USB Interface For detailed information about USB interface connections, refer to the Agilent NOTE Technologies USB/LAN/GPIB Interfaces Connectivity Guide, located on the Automation-Ready CD-ROM that is shipped with your product. The following steps will help you quickly get started connecting your USB-enabled instrument to the Universal Serial Bus (USB).
  • Page 50 If this does not work, refer to the chapter on “Troubleshooting Guidelines” in NOTE the Agilent Technologies USB/LAN/GPIB Interfaces Connectivity Guide. You can now use Interactive IO within the Connection Expert to communicate with your instrument, or you can program your instrument using the various programming environments.
  • Page 51 The default hostname is described under “Connecting to a Site LAN”. If this does not work, refer to the chapter on “Troubleshooting Guidelines” in the NOTE Agilent Technologies USB/LAN/GPIB Interfaces Connectivity Guide. Series N5700 User’s Guide...
  • Page 52 4 Operating the Power Supply Remotely You can now use Interactive IO within the Connection Expert to communicate with your instrument, or you can program your instrument using the various programming environments. You can also use the Web browser on your computer to communicate with the instrument as described under “Using the Web Server”.
  • Page 53 Operating the Power Supply Remotely 4 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 power supply.
  • Page 54 4 Operating the Power Supply Remotely Service requests are enabled for control sockets using the Service Request Enable register. Once service requests have been enabled, the client program listens on the control connection. When SRQ goes true the instrument will send the string “SRQ +nn” to the client. The “nn”...
  • Page 55 Operating the Power Supply Remotely 4 Subnet Mask 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. Default This value is the IP Address of the default gateway that allows the instrument Gateway...
  • Page 56 4 Operating the Power Supply Remotely Factory-shipped LAN Settings The factory-shipped LAN settings documented in the following table are optimized for connecting your power supply to a site network. They should also work well for other network configurations. The factory-shipped settings can be restored by pressing and holding the front panel LAN button for three seconds.
  • Page 57 Operating the Power Supply Remotely 4 Enable the LAN and, optionally, the built-in Web server using the applicable check boxes. Click the Set button to save all the settings information. Connect the LAN cable to your instrument and computer. Reboot the instrument.

  • Page 58: Scpi Commands - An Introduction

    4 Operating the Power Supply Remotely SCPI Commands – an Introduction 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.
  • Page 59 Operating the Power Supply Remotely 4 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.
  • Page 60 4 Operating the Power Supply Remotely 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.

  • Page 61: Parameter Types

    Operating the Power Supply Remotely 4 Parameter Types Data programmed or queried from the power supply is ASCII. The data may be numerical or character string. Numeric Parameters Symbol Response Formats <NR1> Digits with an implied decimal point assumed at the right of the least-significant digit.
  • Page 62 4 Operating the Power Supply Remotely SCPI Command Completion SCPI commands sent to the power supply are processed either sequentially or in parallel. Sequential commands finish execution before a subsequent command begins. Parallel commands allow other commands to begin executing while the parallel command is still executing.

  • Page 63: Language Reference

    Language Reference SCPI Command Summary................64 Calibration Commands ..................66 Measure Commands..................67 Output Commands .................... 68 Source Commands.................... 69 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.

  • Page 64: Scpi Command Summary

    5 Language Reference SCPI Command Summary Some [optional] commands have been included for clarity. All settings NOTE commands have a corresponding query. Subsystem Commands SCPI Command Description ABORt Aborts the triggered action CALibrate :CURRent[:LEVel] Calibrates the output current programming :DATA <NRf> Enters the calibration value :DATE <”SPD”>...

  • Page 65: Common Commands

    Language Reference 5 SCPI Command Description STATus :OPERation [:EVENt]? Returns the value of the operation event register :CONDition? Returns the value of the operation condition register :ENABle <NRf> Enables specific bits in the Event register :NTRansition<NRf> Sets the Negative transition filter :PTRansition<NRf>...

  • Page 66: Calibration Commands

    5 Language Reference 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 NOTE commands will generate an error.

  • Page 67: Measure Commands

    Language Reference 5 CALibrate:STATe ON|OFF [,<password>] CALibrate:STATe? This command enables/disables calibration mode. Calibration mode must be enabled for the power 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.

  • Page 68: Output Commands

    5 Language Reference Output Commands Output commands enable the output, power-on, and protection functions. OUTPut[:STATe] ON|OFF 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).

  • Page 69: Source Commands

    Language Reference 5 Source Commands Source commands program the voltage, current, triggered, and protection functions. [SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude] <value>|MIN|MAX [SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude]? [MIN|MAX] [SOURce:]CURRent[:LEVel]:TRIGgered[:AMPLitude] <value>|MIN|MAX [SOURce:]CURRent[:LEVel]:TRIGgered[:AMPLitude]? [MIN|MAX] These commands set the immediate and the triggered output current level. The values are programmed in amperes. The immediate level is the output current setting.
  • Page 70 5 Language Reference [SOURce:]VOLTage:LIMit:LOW <value>|MIN|MAX [SOURce:]VOLTage:LIMit:LOW? [MIN|MAX] 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.

  • Page 71: Status Commands

    Language Reference 5 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.
  • Page 72 5 Language Reference 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.
  • Page 73 Language Reference 5 STATus:OPERation:NTR <value> STATus:OPERation:PTR <value> 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 registers 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.
  • Page 74 5 Language Reference STATus:QUEStionable:ENABle <value> 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.
  • Page 75 Language Reference 5 *ESE *ESE? This command programs the Standard Event Status Enable register bits. The programming determines which events of the Standard Event Status Event register (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.
  • Page 76 5 Language Reference *SRE *SRE? 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.

  • Page 77: System Commands

    Language Reference 5 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? This command configures the remote/local state of the instrument according to the following settings.
  • Page 78 5 Language Reference *IDN? 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 Zero or serial number if available <A.xx.xx>,<A.xx.xx>...

  • Page 79: Trigger Commands

    Language Reference 5 Trigger Commands Trigger commands consist of the Abort, Trigger, and Initiate Initiate commands Trigger commands. initialize the trigger system. 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.

  • Page 81: Programming Examples

    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 you agree that Agilent Technologies has no warranty, obligations, or liability for any example programs.

  • Page 82: Output Programming Example

    6 Programming Examples Output Programming Example This program sets the voltage, current, over-voltage, and the over- current protection. It turns the output on and takes a voltage measurement. 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...
  • Page 83 Programming Examples 6 ' Set the over voltage level .WriteString "VOLT:PROT:LEV " & Str$(overVoltSetting) ' Turn on over current protection .WriteString "CURR:PROT:STAT " & Str$(overCurrOn) ' Set the current level .WriteString "CURR " & Str$(CurrSetting) ' Turn the output on .WriteString "OUTP ON"...

  • Page 84: Trigger Programming Example

    6 Programming Examples Trigger Programming Example This example illustrates how to set up and trigger a voltage and current 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 msg1 As String ' This variable is used to monitor the status Dim stat As Long...
  • Page 85 Programming Examples 6 ' Set the voltage .WriteString "VOLT" & Str$(VoltSetting) ' Set the current level .WriteString "CURR " & Str$(CurrSetting) ' Set the triggered voltage and current levels .WriteString "VOLT:TRIG " & Str$(trigVoltSetting) .WriteString "CURR:TRIG " & Str$(trigCurrSetting) ' Turn the output on .WriteString "OUTP ON"...

  • Page 87: Appendix A Specifications

    Appendix A Specifications Performance Specifications ................88 Supplemental Characteristics ................. 89 Outline Diagram....................91 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.

  • Page 88: Performance Specifications

    Appendix A Specifications Performance Specifications Agilent Models N5741A – N5752A and N5761A – N5772A Model N5741A N5742A N5743A N5744A N5745A N5746A N5747A N5748A N5749A N5750A N5751A N5752A N5761A N5762A N5763A N5764A N5765A N5766A N5767A N5768A N5769A N5770A N5771A N5772A DC Output Ratings: NOTE 1 Voltage 12.5V...

  • Page 89: Supplemental Characteristics

    Specifications Appendix A Supplemental Characteristics Agilent Models N5741A – N5752A and N5761A – N5772A N5741A N5742A N5743A N5744A N5745A N5746A N5747A N5748A N5749A N5750A N5751A N5752A Model N5761A N5762A N5763A N5764A N5765A N5766A N5767A N5768A N5769A N5770A N5771A N5772A Output Response Time: (to settle to within 1.0% of the rated output, with a resistive load) Up, full load 0.08s 0.08s...
  • Page 90 Appendix A Specifications Agilent Models N5741A – N5752A and N5761A – N5772A Model N5741A N5742A N5743A N5744A N5745A N5746A N5747A N5748A N5749A N5750A N5751A N5752A N5761A N5762A N5763A N5764A N5765A N5766A N5767A N5768A N5769A N5770A N5771A N5772A Series and Parallel Capability: Parallel operation Up to 4 identical units can be connected in master/slave mode with single–wire current balancing Series operation...

  • Page 91: Outline Diagram

    Specifications Appendix A Outline Diagram VOLTAGE DC VOLTS DC AMPS CURRENT 43.6mm N5749A 100V/7.5A 750W PROT FINE LIMIT UVL OCP REM OUT ON System DC Power Supply POWER 482.8+/-1.0mm 422.8+/-1.0mm 10/100 Ethernet LINK GPIB J2 SW1 1 2 3 4 5 6 7 8 9 ANALOG PROGRAMMING +S+LSNC-LC-S NOT ACTIVE...

  • Page 93: Appendix B Verification And Calibration

    Appendix B Verification and Calibration Verification ......................94 Calibration ......................113 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.

  • Page 94: Verification

    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 repair facility (see Appendix D). Equipment Required The equipment listed in the following table, or the equivalent to this equipment, is required for the calibration and performance tests.

  • Page 95: Measurement Techniques

    Verification and Calibration Appendix B Measurement Techniques Electronic Load 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.
  • Page 96 Appendix B Verification and Calibration Constant Voltage Tests Refer to the appropriate test record form for the instrument settings of the NOTE 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.
  • Page 97 Verification and Calibration Appendix B CV Source Effect Test category = performance 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. Turn off the power supply and connect the ac power line through a variable voltage transformer.
  • Page 98 Appendix B Verification and Calibration 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 Infiniium scope, the maximum peak-to-peak voltage measurement is indicated at the bottom of the screen on the right side.
  • Page 99 Verification and Calibration Appendix B Constant Current Tests Refer to the appropriate test record form for the instrument settings of the NOTE model you are checking. Current Programming and Readback Accuracy Test category = performance, calibration This test verifies that the current programming and measurement functions are within specifications.
  • Page 100 Appendix B Verification and Calibration 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 (Iout).
  • Page 101 Verification and Calibration Appendix B Test Record Form – Agilent N5741A and N5761A Agilent N5741A and N5761A Report No _______________ Date __________________ Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ + 15 mV Measurement Readback Both Vout −...
  • Page 102 Appendix B Verification and Calibration Test Record Form – Agilent N5742A and N5762A Agilent N5742A and N5762A Report No _______________ Date __________________ Description Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ +20 mV Measurement Readback Both...
  • Page 103 Verification and Calibration Appendix B Test Record Form – Agilent N5743A and N5763A Agilent N5743A and N5763A Report No _______________ Date __________________ Description Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ + 31.25 mV Measurement Readback Both...
  • Page 104 Appendix B Verification and Calibration Test Record Form – Agilent N5744A and N5764A Agilent N5744A and N5764A Report No _______________ Date __________________ Description Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ + 50 mV Measurement Readback Both...
  • Page 105 Verification and Calibration Appendix B Test Record Form – Agilent N5745A and N5765A Agilent N5745A and N5765A Report No _______________ Date __________________ Description Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ + 75 mV Measurement Readback Both...
  • Page 106 Appendix B Verification and Calibration Test Record Form – Agilent N5746A and N5766A Agilent N5746A and N5766A Report No _______________ Date __________________ Description Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ +100 mV Measurement Readback Both...
  • Page 107 Verification and Calibration Appendix B Test Record Form – Agilent N5747A and N5767A Agilent N5747A and N5767A Report No _______________ Date __________________ Description Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ + 150 mV Measurement Readback Both...
  • Page 108 Appendix B Verification and Calibration Test Record Form – Agilent N5748A and N5768A Agilent N5748A and N5768A Report No _______________ Date __________________ Description Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ + 200 mV Measurement Readback Both...
  • Page 109 Verification and Calibration Appendix B Test Record Form – Agilent N5749A and N5769A Agilent N5749A and N5769A Report No _______________ Date __________________ Description Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ + 250 mV Measurement Readback Both...
  • Page 110 Appendix B Verification and Calibration Test Record Form – Agilent N5750A and N5770A Agilent N5750A and N5770A Report No _______________ Date __________________ Description Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ + 375 mV Measurement Readback Both...
  • Page 111 Verification and Calibration Appendix B Test Record Form – Agilent N5751A and N5771A Agilent N5751A and N5771A Report No _______________ Date __________________ Description Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ + 750 mV Measurement Readback Both...
  • Page 112 Appendix B Verification and Calibration Test Record Form – Agilent N5752A and N5772A Agilent N5752A and N5772A Report No _______________ Date __________________ Description Model Minimum Specs. Results Maximum Specs. Voltage Programming & Readback Minimum Voltage Vout Both 0 mV __________ + 1,500 mV Measurement Readback Both...

  • Page 113: Calibration

    Verification and Calibration Appendix B 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: As shipped from the factory the calibration password is 0, which means password protection is removed and the ability to enter calibration mode is unrestricted.
  • Page 114 Appendix B Verification and Calibration Step 5. Select the first voltage calibration point. CAL:LEV P1 *OPC? Step 6. Measure the output voltage and enter the data. CAL:DATA <data> Step 7. Select the second voltage calibration point. CAL:LEV P2 *OPC? Step 8. Measure the output voltage and enter the data. CAL:DATA <data>...

  • Page 115: Appendix C Service

    Error Messages ....................118 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. Series N5700 User’s Guide...

  • Page 116: Types Of Service Available

    Repackaging for Shipment 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.
  • Page 117 Service Appendix C Symptom Check Action No output. Is the AC power cord defective? Check continuity. Replace if necessary. All displays and indicators are blank. Is the AC input voltage within range? Check AC input voltage. Connect to appropriate voltage source. Output is present momentarily, but shuts Does the AC source voltage sag when a load Check AC input voltage.

  • Page 118: Error Messages

    Appendix C Service Error Messages Displaying the SCPI error queue The entire error queue is read, then emptied, using the following command: SYST:ERR? Error List The following table documents the various error messages that the power supply supports: Error 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.
  • Page 119 Service Appendix C Command Errors (these errors set Standard Event Status register bit #5) Command error −100 Generic syntax error. Invalid character −101 An invalid character was found in the command string. Syntax error −102 Invalid syntax was found in the command string. Check for blank spaces. Invalid separator −103 An invalid separator was found in the command string.
  • Page 120 Appendix C Service Command Errors (continued) Invalid character data −141 Either the character data element contains an invalid character, or the element is not valid. Character data too long −144 The character data element contains more than 12 characters. Character data not allowed −148 A discrete parameter was received, but a string or numeric parameter was expected.
  • Page 121 Service Appendix C Execution Errors (continued) Data questionable −231 The measurement accuracy is suspect. Invalid format −232 The data format or structure is inappropriate. Invalid version −233 The version of the data format is incorrect to the instrument. Hardware error −240 The command could not be executed because of a hardware problem with the instrument.

  • Page 123: Appendix D Compatibility

    Appendix D Compatibility Differences – In General ................124 Compatibility Command Summary ...............125 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.

  • Page 124: Differences - In General

    Appendix D Compatibility Differences – In General The following table documents the general differences between the way Compatibility commands work on the Agilent N5700 power supplies and the way they worked on the Agilent 603xA power supplies. Item Differences Queries The Agilent N5700 will respond to multiple queries.

  • Page 125: Compatibility Command Summary

    Compatibility Appendix D Compatibility Command Summary The following table documents the compatibility commands that the Agilent N5700 power supplies support. All compatibility commands are accepted; however, some commands do nothing. Compatibility Command Description Similar SCPI Command ASTS? Queries the accumulated status (ASTS). The response represents the sum STAT:OPER:EVEN? of the binary weights of the ASTS register bits.
  • Page 126 Appendix D Compatibility Compatibility Command Description Similar SCPI Command Sets the over-voltage trip point. VOLT:PROT:LEV OVP? Queries the present over-voltage setting. The response is a real number. VOLT:PROT:LEV? RCL <reg> Recalls the saved settings. There are up to 16 store/recall states. Saved *RCL settings must have been previously stored using the STO command.

  • Page 127: Index

    Index *IDN? ................78 *OPC ................75 *OPT?................78 488..................11, 48 *RCL.................78 *RST.................78 *SAV ................78 ABOR ................... 79 *SRE.................76 AC INPUT..............12, 90 *STB?................76 1500 W units..............19 *TST .................78 750 W units..............19 *WAI ................76 accessories................. 16 TRG ..................79 analog programming common mode current............28 external resistance ............
  • Page 128 Index CV/CC crossover ............... 37 CV/CC signal..............37 J1 connector...............12 J2 connector...............12 daisy-chain shut down ............. 42 damage................17 Keepalive ................56 data socket ................. 53 keywords ................59 DC AMPS ................10 DC VOLTS................10 Default Gateway ..............55 LAN..................11 device clear................. 62 LAN interface ..............49 DNS..................
  • Page 129 Index OUP ..................11 device clear ..............62 OUT ON ................10 message unit..............59 outline diagram..............17 multiple commands ............58 output commands ............. 68 syntax ................58 OUTP ................68 shut off terminals ..............40 OUTP PON STAT............68 slave unit ................29 OUTP PROT CLE............68 sockets.................53 output grounding ...............
  • Page 130 Index verification equipment ............94 VOLTAGE................10 UFP..................11 voltage monitoring, external..........45 under-voltage check ............35 voltage programming accuracy........96 under-voltage limit ............38 voltage readback accuracy ..........96 USB ID string..............49 voltage sensing ..............24 USB interface ..............49 UUL..................11 UVL..................11 warning..................
  • Page 131 Manual Updates 11/08/07 The following documents the differences between front panel operation of the LXI-compliant units and the pre-LXI units. LXI-compliant units Pre-LXI units (see page 10 for additional details) CURRENT CURRENT DC AMPS DC AMPS OCP/488 OUT ON OUT ON 9 –...
  • Page 132 1/11/12 The Declaration of Conformity has been removed and replaced with a link to the web on page 2. On page 90, under Environmental Conditions, information about operating humidity has been updated, and the LED statement has been removed. The Regulatory Compliance section has also been updated with the latest requirements.

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