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Section 2: General operation

Series 2280 Precision DC Power Supply Reference Manual

2-80

077085503 / March 2019

Even with the overcurrent protection set to the lowest value, never touch anything connected

to the terminals of the Series 2280 when the output is on. Always assume that a hazardous

voltage (greater than 30 V RMS) is present when the output is on. To prevent damage to the

DUT or external circuitry, do not set the current source to levels that exceed the value that is

set for overcurrent protection.

Setting overcurrent protection limits

To set overcurrent protection using the front panel:

1. Press the

MENU

key.

2. Under Source, select

Protect

3. Select

OCP

and set the limit.

4. Select

HOME

to return to the operating display.

To set overcurrent protection using SCPI commands:

To set the overcurrent limit for the current source to 4 A, send the command:

:CURRent:PROTection 4

See the command description for

[:SOURce[n]]:<function>:PROTection[:LEVel]

(on page 7-76) for the

full list of options.

Overtemperature protection

To prevent damaging heat build-up and ensure specified performance, make sure there is adequate

ventilation and air flow around the instrument to ensure proper cooling. Do not cover the ventilation

holes on the top, sides, or bottom of the instrument.

Even with proper ventilation, the instrument can overheat in the following situations:

If the ambient temperature is too high.

If you use the instrument as a power sink for long periods.

If the instrument overheats, the output is turned off and an event message is displayed.

Содержание 2280 Series

Страница 1: ...Reference Manual 077085503 March 2019 P077085503 077085503 Series 2280 Precision Measurement DC Power Supplies tek com keithley...

Страница 2: ...Precision DC Power Supply Reference Manual Series 2280...

Страница 3: ...prohibited These are the original instructions in English All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments LLC Other brand names are trademarks or...

Страница 4: ...d to mains These instruments will be marked as category II or higher Unless explicitly allowed in the specifications operating manual and instrument labels do not connect any instrument to mains Exerc...

Страница 5: ...lains hazards that could damage the instrument Such damage may invalidate the warranty The CAUTION heading with the symbol in the user documentation explains hazards that could result in moderate or m...

Страница 6: ...nstrument on and off 2 34 Test connections 2 37 Front panel connector 2 38 Rear panel output mating connector 2 39 Two wire local sense connection 2 39 Four wire sense connection 2 40 Open leads detec...

Страница 7: ...1 Changing the instrument access mode 3 1 Changing the password 3 2 Graph 3 2 Changing the window position and zoom 3 3 Adjusting the scale and offset of the Y axis 3 4 Output delay slew rate and sou...

Страница 8: ...value 4 13 Displayed measurements 4 15 Select the source of readings 4 17 Application examples 5 1 Simple voltage output and current measurement 5 1 Equipment required 5 1 Set up remote communication...

Страница 9: ...unction KMATh MMFactor 7 23 CALCulate 1 function KMATh MUNits 7 25 CALCulate 1 function STATe 7 26 CALCulate2 DATA 7 27 CALCulate2 FORMat 7 28 CALCulate2 FORMat ELEMents 7 30 CALCulate2 FUNCtion 7 31...

Страница 10: ...nce ACQuire 7 71 SENSe n function REFerence STATe 7 72 SENSe n function RESolution 7 73 SOURce subsystem 7 74 SOURce n DELay 7 74 SOURce n DELay STATe 7 75 SOURce n function PROTection LEVel 7 76 SOUR...

Страница 11: ...nication ABORt 7 113 SYSTem COMMunication LAN CONFigure 7 114 SYSTem COMMunication LAN MACaddress 7 115 SYSTem DATE 7 115 SYSTem ERRor 7 116 SYSTem ERRor CLEar 7 116 SYSTem ERRor CODE 7 117 SYSTem ERR...

Страница 12: ...ons 8 3 Error summary 8 4 Next steps 9 1 Additional Series 2280 information 9 1 Maintenance A 1 Introduction A 1 Line fuse replacement A 1 Upgrading the firmware A 2 From the front panel A 3 Perform D...

Страница 13: ...e noise 20 MHz B 39 Check current noise 20 MHz B 41 Calibration and adjustment C 1 Overview C 1 Environmental conditions C 1 Warmup period C 2 Line power C 2 Calibration considerations C 2 Calibration...

Страница 14: ...Register D 7 Service Request Enable Register D 9 Status register sets D 9 Register bit descriptions D 9 Event registers D 20 Event enable registers D 20 Condition registers D 20 Queues D 20 Output que...

Страница 15: ...st information from your measurements Extended warranty Additional years of warranty coverage are available on many products These valuable contracts protect you from unbudgeted service expenses and p...

Страница 16: ...onents of the instrument and basic operation Functions and features Describes features and functions such as measure operations list mode reading buffers triggering the digital I O port graph function...

Страница 17: ...display and statistics for trend analysis Up to nine groups of user definable lists with up to 99 steps for each list GPIB USB TMC and LAN LXI interfaces for automated test development Filtering to re...

Страница 18: ...ese 0713259xx Korean 0713262xx Russian 0713263xx Where xx represents the revision number Optional accessories Optional accessory Part number Model 2280 001 Output Mating Connector 2280 001 USB Cable T...

Страница 19: ...Year ISO 17025 Calibration Plan C 2280S 32 6 3Y 1702 C 2280S 60 3 3Y 1702 KeithleyCare 5 Year ISO 17025 Calibration Plan C 2280S 32 6 5Y 1702 C 2280S 60 3 5Y 1702 General ratings The Series 2280 inst...

Страница 20: ...n 2 78 Saving setups 2 82 Using the event log 2 85 System information 2 86 Instrument sounds 2 87 Resets 2 87 Front panel overview The front panel of Series 2280 is shown below Descriptions of the con...

Страница 21: ...ation control Moves the cursor to the left or the right to highlight a listed value or menu item so that you can select it ENTER key Selects the highlighted choice or allows you to edit the selected f...

Страница 22: ...d ground output binding posts for output connections Rear panel overview The rear panel of the Series 2280 is shown below descriptions follow the figure Figure 2 Series 2280 rear panel LAN port Suppor...

Страница 23: ...fer to Digital I O on page 3 19 for information IEEE 488 port GPIB connection the default setting for the Series 2280 is 5 Refer to GPIB communication on page 2 45 Rear output terminals Connections fo...

Страница 24: ...indicators 3 Setting area Located in the lower left corner of the OUTPUT view area Shows the presently set measure range voltage and current limit 4 Soft key area The soft key area is on the bottom of...

Страница 25: ...IB Instrument is communicating through a GPIB interface VXI 11 Instrument is communicating using VXI 11 USBTMC Instrument is communicating through a USB interface firmware version 1 05 and earlier por...

Страница 26: ...that caused SRQ are cleared Level trigger enabled indicator When a voltage level trigger or current level trigger is enabled a solid white square indicator is visible to the left of the Buffer indicat...

Страница 27: ...8 077085503 March 2019 Trigger mode settings indicator This indicator shows the status of the trigger operation Figure 7 Trigger indicator List and recall settings indicator This indicator shows the...

Страница 28: ...r and Event Log Figure 9 Error and event indicator This indicator has a different appearance based on the type of event that has been logged Icon Description A serious error has occurred These major e...

Страница 29: ...ed on and the power supply is in constant current CC mode DISABLE The output is turned off and pressing the OUTPUT switch does not turn on the output Fault status The fault status indicator means that...

Страница 30: ...y pressing the ENTER or EXIT key Figure 10 Soft key area 1 for power supply Setting Description V Set Configure the voltage setting using the numerical keys soft keys and navigation control I Limit Co...

Страница 31: ...t the current threshold for overcurrent protection VMAX Edit the maximum voltage setting value Resolution Specify the measurement resolution for the selected measurement function Calculate Specify the...

Страница 32: ...area 3 Setting Description List Configure the list function Enable Run a specified list Number Specify the list number The default setting for list number is Demo You can run a predefined list For mo...

Страница 33: ...ure below Figure 13 Power supply main menu The main menu is organized into five submenus which are labeled in green across the top of the display The icons in each column open interactive screens Sour...

Страница 34: ...Output Delay Enable or disable output delay Slew Rise Set the rising rate for voltage source Slew Fall Set the falling rate for voltage source Delay Rise Set the delay time that the instrument waits...

Страница 35: ...ngs before each specified point The default settings are 0 000 V 0 1000 A 0 100 s Copy Copy the selected settings of the point and insert a new point with the same settings before each point Points Di...

Страница 36: ...ment measures voltage and current at the same time V Voltage measurement function The instrument only measures voltage I Current measurement function The instrument only measures current Range Set the...

Страница 37: ...rements that are averaged when filtering is enabled The number of measurements can be 2 through 100 Window Filtering uses a window to control filter threshold When the input signal remains within the...

Страница 38: ...tics to apply to the readings in the buffer Available statistics Minimum Minimum value Maximum Maximum value Peak Peak Maximum value minimum value Mean Average Std Dev Standard deviation Statistics Fu...

Страница 39: ...are displayed on the screen Y Axis Select the data that is plotted on the Y axis You can select Current Voltage or Both I Auto Adjust Enable or disable the automatic adjustment of the current scale a...

Страница 40: ...abled The Series 2280 supports the following types of lists Step One trigger signal will output one list step Sweep One trigger signal will output the entire list Disable The list is disabled Idle Con...

Страница 41: ...I O on page 3 19 Setting Description Line 1 Specify one of the following line modes for digital I O line 1 Trigger In Output HI Output LO Manual In Line 2 Specify one of the following line modes for d...

Страница 42: ...Set the value of the current that will trigger the data logging in the data buffer Voltage Direction If you set this as Rise the trigger will be activated when the voltage rises above the triggering...

Страница 43: ...ng these settings are the event log communications error beeper key clicks backlight brightness and timer time and date calibration and system and calibration passwords and settings The following topi...

Страница 44: ...hat is assigned to another instrument or to the GPIB controller LXI LCI Reset the LAN configuration LAN settings Description TCP IP Mode Select Manual to manually set the Local IP gateway and subnet m...

Страница 45: ...d Change the remote connection or calibration passwords You need the remote connection password to open the LXI virtual front panel and send SCPI commands You need the calibration password before you...

Страница 46: ...ous version of the firmware from a file on a USB flash drive When you return to a previous version the instrument verifies that the version you are loading is earlier than what is on the instrument If...

Страница 47: ...ghtness Where brightness is from 1 to 100 For example 75 represents 75 percent brightness and 100 represents full brightness Installing the system This section contains information on how to install y...

Страница 48: ...ensions The following figures show the mounting screw locations and the dimensions of the instrument with and without the bumpers The instrument weighs 10 67 kg 23 53 lb with the bumpers and 10 40 kg...

Страница 49: ...ion Series 2280 Precision DC Power Supply Reference Manual 2 30 077085503 March 2019 The following figures show the dimensions when the bumpers are installed Figure 17 Series 2280 front and rear panel...

Страница 50: ...Series 2280 Precision DC Power Supply Reference Manual Section 2 General operation 077085503 March 2019 2 31 Figure 18 Series 2280 top and side dimensions with bumpers...

Страница 51: ...ries 2280 Precision DC Power Supply Reference Manual 2 32 077085503 March 2019 The following figures show the dimensions when the bumpers have been removed Figure 19 Series 2280 front and rear panel d...

Страница 52: ...Series 2280 Precision DC Power Supply Reference Manual Section 2 General operation 077085503 March 2019 2 33 Figure 20 Series 2280 top and side dimensions with bumpers removed...

Страница 53: ...tains a separate protective earth safety ground wire for use with grounded outlets When proper connections are made the instrument chassis is connected to power line ground through the ground wire in...

Страница 54: ...ress the front panel POWER switch to place it in the on I position A status bar is displayed as the instrument powers up The home screen is displayed when power up is complete 3 To turn your instrumen...

Страница 55: ...never make or break connections to the Series 2280 while the instrument is powered on Turn off the equipment from the front panel or disconnect the main power cord from the rear of the Series 2280 bef...

Страница 56: ...to make connections to the device under test DUT You must use either the front or rear terminals You cannot use connections to both the front panel and rear panel for the same test setup you must choo...

Страница 57: ...tputs from the front panel Insert standard banana plugs into the front connectors as shown in location 1 Insert safety test leads into the front connectors as shown in location 1 For details see the f...

Страница 58: ...ense high and sense low terminals The rear output terminals accept wire sizes from AWG 20 to AWG 12 Two wire local sense connection You can connect a device to the instrument in a two wire sense conne...

Страница 59: ...leads between the power supply and the load The maximum voltage drop is 1 V per lead As shipped the sense terminals are connected to the output terminals by shorting jumpers Before connecting the wir...

Страница 60: ...sted For more information refer to the following figure Figure 26 Four wire connection with twisted pair wires Make sure you make the connections correctly Incorrect connections between output and sen...

Страница 61: ...tting Vclamp is introduced from a clamp circuit typically less than 7 V Without the clamp circuit the instrument could output its maximum voltage when the open lead occurs Example 1 Connect a 300 resi...

Страница 62: ...interface by sending the SYSTem ERRor command Reversed sense leads When the following connections occur the instrument generates a reversed sense leads error Sense HI is connected to Output LO Sense H...

Страница 63: ...press the ENTER key to initiate the trigger model To clear an overprotection error using a SCPI command When an overprotection error occurs send the following command to clear the register and initiat...

Страница 64: ...ave up to 15 devices connected to a GPIB interface including the controller The maximum cable length is the lesser of either The number of devices multiplied by 2 m 6 5 ft 20 m 65 6 ft You may see err...

Страница 65: ...two screws on it to ensure that connections remain secure The figure below shows a typical connection diagram for a test system with multiple instruments To avoid possible mechanical damage stack no m...

Страница 66: ...el 3 Connect any additional connectors from other instruments as required for your application 4 Make sure the other end of the cable is properly connected to the controller Set the GPIB address The d...

Страница 67: ...dialog box is displayed 5 Enter the address 6 Select OK If you are using a Series 2280 with no front panel you can set the GPIB address with the SCPI command SYSTem GPIB ADDRess LAN communications The...

Страница 68: ...er cable has its receive RX and transmit TX lines crossed to allow the receive line input to be connected to the transmit line output on the network interfaces Figure 34 One to one connection with a c...

Страница 69: ...networks two network interface cards are required in the computer controller Though the two networks are independent stations on the corporate network can access the instruments and the instruments ca...

Страница 70: ...net using appropriate security methods Data collection and distribution can be controlled from virtually any location Figure 37 Instrumentation connection to enterprise routers or servers Raw socket c...

Страница 71: ...ou can also check the settings with the SCPI command SYSTem COMMunication LAN CONFigure The Series 2280 powers up using the last remote interface used Set up automatic LAN configuration If you are con...

Страница 72: ...n placing the instrument on a corporate network The instrument IP address has leading zeros but the computer IP address does not To set up manual IP address selection on the instrument 1 From the home...

Страница 73: ...cting the host computer to a corporate network Contact your system administrator for more information LAN status indicator When the LAN status indicator on the front panel of the instrument turns soli...

Страница 74: ...ddress of the instrument in the address box of the web browser For example if the instrument IP address is 169 254 152 168 enter 169 254 152 168 in the browser address box 3 Press Enter on the compute...

Страница 75: ...the LAN status indicator to steady on Change the IP configuration through the web interface The LAN settings such as IP address subnet mask gateway and DNS address can be changed through the web page...

Страница 76: ...s is normal and does not indicate an error or failure of the operation If this occurs find the correct IP address and reopen the web page of the instrument to continue Change the web interface passwor...

Страница 77: ...t 1 From the navigation bar of the web interface home page select Virtual Front Panel 2 If you are prompted for a password enter it and select Submit The default password is admin 3 In the left upper...

Страница 78: ...ual Front Panel 2 If you are prompted for a password enter it and select Submit The default password is admin 3 In the left upper corner of the virtual front panel select Operation The Snapshot and Fe...

Страница 79: ...the virtual front panel refer to Front panel user interface on page 2 4 The Series 2280 only allows fewer than three clients to open the virtual front panel web page at the same time Only the first s...

Страница 80: ...d a command and read the response from the instrument 6 Select View Errors to get the oldest error in the event log and remove it 7 Select Clear to clear all the history information shown on the web p...

Страница 81: ...n bar of the web interface home page select Data Logging The following screen is displayed Figure 45 Data logging web page There are three ways to log data on the web page There is a STOP MODE box in...

Страница 82: ...If the data logging mode is set to Manual select Stop on the right side of the screen to stop logging test data If the mode is set to Time or Point the logging will stop automatically when the time o...

Страница 83: ...1 means the current has exceeded the preset current range 0 means the current is within the range For more details about this setting refer to Setting overcurrent protection limits on page 2 80 Clear...

Страница 84: ...s Update to search for software dialog box opens select No and then select Next 5 On the USB Test and Measurement device dialog box select Next and then select Finish Communicate with the instrument F...

Страница 85: ...the Keithley Configuration Panel to determine the VISA resource string 1 Select Start Programs Keithley Instruments Keithley Configuration Panel The Select Operation dialog box is displayed 2 Select A...

Страница 86: ...9 2 67 4 Select USB 5 Select Next The Select Instrument Driver dialog box is displayed Figure 48 Select Instrument Driver dialog box 6 Select Auto detect Instrument Driver Model 7 Select Next The Conf...

Страница 87: ...ed Figure 49 Name Virtual Instrument dialog box 9 In the Virtual Instrument Name box enter a name that you want to use to refer to the instrument 10 Select Finish 11 Select Cancel to close the Wizard...

Страница 88: ...I VISA on your system you can run NI MAX or the VISA Interactive Control utility See the National Instruments NITM documentation for information If you have a full version of TEK VISA on your system y...

Страница 89: ...re installs the following components Microsoft NET Framework NITM IVI Compliance Package NI VISATM Run Time Engine Keithley SCPI based Instrument IVI C driver Keithley I O Layer To install the Keithle...

Страница 90: ...el Also you can change the value using the arrows or navigation control When the output is turned on changing the value using the navigation control will change the source voltage and current instantl...

Страница 91: ...perating in constant voltage mode the power supply provides a regulated output voltage As the load increases the output voltage remains constant until the preset current limit is reached Then the cros...

Страница 92: ...t voltage mode to the constant current mode also occurs automatically in response to an increase in load For example connect a 5 resistor to the binding posts on the front panel set the voltage to 25...

Страница 93: ...280 allows you to perform the following measurement functions Measurement functions What the instrument measures Concurrent V I Measure voltage and current at the same time Voltage V Only measure volt...

Страница 94: ...ple current measurement ranges and one voltage range These ranges are listed in the following table Model Current measurement range Voltage measurement range 2280S 32 6 10 A 32 V 1 A 100 mA 10 mA 2280...

Страница 95: ...ument displays an overflow message select a higher range You can set specific measurement ranges or allow the instrument to choose the ranges automatically For a current measurement send the command S...

Страница 96: ...ent range that the instrument chose you must query the range after a measurement is made You must set the measurement function before the measurement range can be set If you set the measurement range...

Страница 97: ...2 This is the sourced voltage value at the device The Series 2280 also provides overtemperature protection to prevent damaging heat build up Overvoltage protection Overvoltage protection restricts the...

Страница 98: ...rvoltage limit for the voltage source to 20 V send the command VOLTage PROTection 20 See the command description for SOURce n function PROTection LEVel on page 7 76 for the full list of options Overcu...

Страница 99: ...set the limit 4 Select HOME to return to the operating display To set overcurrent protection using SCPI commands To set the overcurrent limit for the current source to 4 A send the command CURRent PRO...

Страница 100: ...with an inoperative cooling fan may result in damage to the instrument Overprotection error When an overcurrent overvoltage or overtemperature protection error occurs the instrument Generates an overp...

Страница 101: ...event damage to the device under test DUT You cannot specify a voltage setting over the maximum voltage limit If you set a maximum voltage limit that is smaller than the voltage source value the sourc...

Страница 102: ...is displayed 5 Select a location to save the setup and press ENTER A keyboard is displayed 6 Use the keyboard to enter the name of the setup 7 Press the ENTER key The setup is added to internal memory...

Страница 103: ...window is displayed 4 Select a saved setup in the pop up window 5 Press the ENTER key The selected setup is applied to the instrument To recall a saved setup from external USB flash drive using the fr...

Страница 104: ...the SCPI command SYSTem POSetup STATe Using the event log The event log records errors that are reported by the instrument The event log can hold up to 64 errors When more than 64 errors are in the ev...

Страница 105: ...Configure the instrument to the settings that you want to save To save the setup with the name myerror csv send the command SYSTem EVENtlog SAVE myerror Clear the event log To clear the event log from...

Страница 106: ...lect On or Off To turn the error beeper on or off using SCPI commands SYSTem BEEPer ERRor ON SYSTem BEEPer ERRor OFF To turn the key clicks on or off from the front panel 1 From the home page press th...

Страница 107: ...sing the SCPI command set refer to STATus PRESet on page 7 105 Reset the instrument You can reset many of the instrument settings to their default values For details about what gets reset see Reset de...

Страница 108: ...f 0 Off MENU Measure Data Buffers Statistics Format CALCulate2 FORMat ELEMents on page 7 30 All READ UNIT MENU Measure Data Buffers Statistics Function CALCulate2 FUNCtion on page 7 31 Current CURR ME...

Страница 109: ...T on page 7 7 command or SYSTem PRESet on page 7 124 command MENU Trigger Digital In Out DIGital LINE n FUNCtion on page 7 45 Line 1 Trigger In Line 2 Meter Out Line 3 Fault Out Line 4 Manual In Line...

Страница 110: ...may not be available for the function you are using Output reset values Setting Default value reset from MENU System Settings Reset Default value reset by the RST on page 7 7 command or SYSTem PRESet...

Страница 111: ...nction DIGits on page 7 65 6 5 6 MENU Measure Settings NPLC SENSe n function NPLCycles on page 7 66 1 000 1 0000 MENU Measure Settings Auto Zero SYSTem AZERo n STATe on page 7 111 On 1 On HOME Resolut...

Страница 112: ...tect Overcurrent Protection SOURce n function PROTection LEVel on page 7 76 6 10 A 6 10 MENU Source Protect Overvoltage Protection SOURce n function PROTection LEVel on page 7 76 21 0 V 21 0 MENU Sour...

Страница 113: ...ary ENABl e on page 7 109 0 Not available from front panel STATus OPERation ENABle on page 7 101 0 Not available from front panel STATus OPERation INSTrument ENABle on page 7 102 0 Not available from...

Страница 114: ...Nt on page 7 150 1 1 Some of the options listed in this table are only available for specific functions If you do not see the option listed here on the menu it may not be available for the function yo...

Страница 115: ...access by one remote interface at a time with passwords required on all interfaces The front panel is read only when you are using a remote interface You can view the home graph or data sheet screen...

Страница 116: ...8 Select the OK button on the displayed keyboard A verification screen is displayed 9 Enter the new password again 10 Select the OK button on the displayed keyboard The password is reset You can rese...

Страница 117: ...ifies 50 readings shown on the screen For detail see the following figure Figure 55 Window position and zoom To change the window position and zoom on the front panel 1 Press the MENU key 2 Under View...

Страница 118: ...nd offset of Y axis according to current and voltage measurements To set the auto adjustment on the front panel 1 Press the MENU key 2 Under Views select Graph 3 Select the button next to I Auto Adjus...

Страница 119: ...set For details refer to the following table Model number Current offset Voltage offset 2280S 32 6 6 1 A to 6 1 A 32 V to 32 V 2280S 60 3 3 3 A to 3 3 A 60 V to 60 V Before configuring the scale or of...

Страница 120: ...a value Using SCPI commands To set output on and off delays send the following commands OUTP DEL RIS 2 OUTP DEL FALL 3 To enable the output delay send the command OUTP DEL STATe ON Slew rate The slew...

Страница 121: ...setting of the output voltage and the beginning of the first reading This is a source delay measure SDM cycle During each SDM cycle the following occurs 1 The supply sets the output level 2 A delay t...

Страница 122: ...uffer The data buffer provides the following statistics Average Minimum Maximum Peak to peak Standard deviation You can perform the following operations on the data buffer from the front panel or the...

Страница 123: ...ffer indicator Setting reading buffer size and buffer mode To configure the buffer configure the following settings Set the buffer size Set the buffer fill mode Buffer size The initial buffer capacity...

Страница 124: ...s only configurable in the power supply function The nonconfigurable buffer mode in the battery test and battery simulation function is Always When autoclear is enabled the buffer is cleared automatic...

Страница 125: ...o Always 5 Press the HOME key to return to the home screen To set the reading buffer mode to overwrite old readings when the buffer is full send the following command TRACe FEED CONTrol ALWays To set...

Страница 126: ...ading buffer to a USB flash drive The stored file can be loaded directly into Microsoft Excel or another tool The file contains all the information the instrument records about each data point in the...

Страница 127: ...ng value is V volts Math T when Math is on F when Math is off Output CC constant current CV constant voltage or OFF For details see Constant voltage CV and constant current CC mode on page 2 72 Date D...

Страница 128: ...splayed 4 If you want to view the statistics select the button next to Statistics The Statistics screen is displayed 5 Press the button next to On The statistics results are displayed below the data t...

Страница 129: ...e of the file you want to save It is not necessary to enter the file extension All files are saved as csv files 6 Select Yes to confirm saving the file When the DATA BUFFERS window is displayed again...

Страница 130: ...e data in the buffer to perform with statistics You must select either the voltage or current value in the buffer to perform statistics calculations When you configure these settings it affects the Gr...

Страница 131: ...pecify the returned data elements for statistical calculations The elements include value reading number unit and time You can specify one or more parameters This only applies to minimum and maximum c...

Страница 132: ...flash drive send the following command TRACe SAVE my_data To save readings from 1 through 100 and relative timestamps to a file named test_data csv on a USB flash drive send the following command TRAC...

Страница 133: ...O You can use the Series 2280 digital input output with the trigger model to control an external digital circuit such as a device handler that is used to perform binning operations To control or conf...

Страница 134: ...tion 1 I O line 1 2 I O line 2 3 I O line 3 4 I O line 4 5 Vext line relay flyback diode protection 6 I O line 5 7 5 V line 8 I O line 6 9 Ground Use this pin to drive external logic circuitry Maximum...

Страница 135: ...an overprotection error or a reverse sense leads error occurs the line is set to logic low 0 V After you clear the error from the front panel or using SCPI commands the line is set to logic high For...

Страница 136: ...e Vext pin to control externally powered devices make sure to configure the corresponding digital output lines In the low state 0 V the output transistor sinks current through the external device In t...

Страница 137: ...configure digital I O lines Using the front panel to configure digital I O lines 1 Press the MENU key 2 Under Trigger select Digital In Out 3 Select the button next to the specified digital I O line T...

Страница 138: ...t represents Line 1 Trigger in Line 2 Meter complete output Line 3 Fault output Line 4 to line 6 Not available MOUTH Manual output high MOUTL Manual output low MINPut Manual input If you apply AUTO to...

Страница 139: ...l The trigger model controls the sequence in which measurements occur It consists of two layers Arm Layer and Trigger Layer to provide versatility Programmable counters allow operations to be repeated...

Страница 140: ...etection occurs immediately allowing operation to continue Bus Event detection occurs when a bus trigger TRG is received External Trigger Event detection occurs when an input trigger is sent through t...

Страница 141: ...or details about the measurement function refer to Select a measurement function on page 2 74 Counter Programmable counters are used to repeat operations within the trigger model layers For example if...

Страница 142: ...enabled INIT CONT ON the instrument continuously performs measurements With continuous initiation disabled INIT CONT OFF the instrument returns to the idle state after all measurements are complete ba...

Страница 143: ...Gger SEQuence n SOURce on page 7 151 Select the control source for the arm layer The available control sources are Immediate triggering External triggering Manual triggering for details see the exampl...

Страница 144: ...ayed 3 Select the button next to Voltage and press the ENTER key 4 Select On 5 Select the button next to Voltage Level and press the ENTER key 6 Set the threshold voltage value for the trigger 7 Selec...

Страница 145: ...DC Power Supply Reference Manual Section 3 Functions and features 077085503 March 2019 3 31 The following figure illustrates how the level trigger is activated when the voltage rises Figure 67 Voltag...

Страница 146: ...tage level trigger fall Configuring a current level trigger To configure a current level trigger from the front panel 1 Press the Menu key 2 Under Trigger select Level and press the ENTER key The LEVE...

Страница 147: ...ow many points to save before activating the level trigger To configure a current level trigger send the following SCPI commands TRACe n TRIGger CURRent STATe TRACe n TRIGger CURRent LEVel TRACe n TRI...

Страница 148: ...n You can use lists to set up the instrument to source specific voltage and current values to a device under test DUT You can specify up to 99 step points of voltage and current limit You can also spe...

Страница 149: ...t locations You can also import a predefined list from an external USB flash drive For details refer to Importing a list from an external USB flash drive on page 3 37 6 Use the Insert or Copy button t...

Страница 150: ...mmands LIST1 CURR 1 1 1 LIST1 VOLT 5 10 15 LIST1 DWEL 2 2 2 LIST1 CURR APPE 2 2 2 LIST1 VOLT APPE 5 10 15 LIST1 DWEL APPE 3 3 3 LIST SAVE INTE 1 Points Voltage V Current A Dwell s 1 5 1 2 2 10 1 2 3 1...

Страница 151: ...USB flash drive on the front panel 1 Press the Menu key 2 Under Source highlight the List icon using either the navigation control or the soft keys Press the ENTER key The Source List screen is displa...

Страница 152: ...want to export to the USB flash drive and press ENTER The specified list is saved to a csv file on the USB flash drive The filename is the same as the list name To export a list to USB flash drive us...

Страница 153: ...Output delay MENU Source Settings Output Delay MENU Source Settings Delay Rise MENU Source Settings Delay Fall OUTPut DELay STATe on page 7 56 OUTPut DELay RISing on page 7 55 OUTPut DELay FALLing on...

Страница 154: ...ttings Rel State MENU Rel Filter Settings Rel Acquire MENU Rel Filter Settings Reference HOME Calculate Rel SENSe n function REFerence STATe on page 7 72 SENSe n function REFerence SENSe n function RE...

Страница 155: ...PI commands Trigger MENU Trigger Configure List Type MENU Trigger Configure Idle MENU Trigger Configure Arm Source MENU Trigger Configure Arm Count MENU Trigger Configure Trigger Source MENU Trigger C...

Страница 156: ...et up the dwell time refer to Configuring a list on page 3 35 Point If you choose this mode one list step runs until the preset number of points is reached To set up the number of points sample count...

Страница 157: ...ist from the front panel you only need to configure the arm source and a sample count for the trigger model For other parameters the instrument changes the settings according to the list configuration...

Страница 158: ...nning time Depending on the hold time you select in the front panel list options there are two types of device actions during list running shown in the following figures Figure 73 Device action in tim...

Страница 159: ...Supply Reference Manual Section 3 Functions and features 077085503 March 2019 3 45 Figure 74 Device action in point mode For list running time in Point mode Measurement Time Sample Count Sample Speed...

Страница 160: ...the instrument generates a measure complete signal after each list step You can detect this signal in digital I O line 2 For details refer to Digital I O on page 3 19 Figure 75 Step mode triggering As...

Страница 161: ...When using immediate triggering the instrument runs the next list step after sending the measure complete signal However when using external bus or manual triggering the instrument moves on to the nex...

Страница 162: ...the instrument generates a measure complete signal after each list cycle You can detect this signal in digital I O line 2 For details refer to Digital I O on page 3 19 Figure 77 Sweep mode triggering...

Страница 163: ...the instrument takes new reference and zero values for every reading This can slow down sweep operation Be aware that if you disable autozero measurements may drift and become erroneous For more infor...

Страница 164: ...ating power rather than sourcing it The instrument can be forced into sink operation by an external source such as a battery or an energy storage device such as a capacitor For detail on the sink regi...

Страница 165: ...e Optimizing either measurement accuracy or speed You can use resolution NPLC autozero and filter to optimize measurement accuracy and speed You can configure the following parameters to optimize for...

Страница 166: ...1 s Source delay state On 5 5 Filter count 10 Filter window 0 01 State Off Moderate reading rates Environmental 50 60 Hz ambient noise can impact readings Reduced display resolution 4 5 0 002 Autozero...

Страница 167: ...n Where n is 4 4 5 digit resolution 5 5 5 digit resolution 6 6 5 digit resolution NPLC You can adjust the amount of time that the input signal is measured Adjustments to the amount of time affect the...

Страница 168: ...MENU key 3 Under Measure select Settings 4 Next to NPLC select the number The NPLC window is displayed 5 Enter the value and press the ENTER key Setting speed using SCPI commands To set the NPLCs for...

Страница 169: ...s are disabled the instrument speed per reading increases However the instrument may gradually drift out of specification Measurement function With autozero enabled the number of customer and internal...

Страница 170: ...ed digits You can set the number of digits that are displayed for measurement readings on the front panel You can display 4 5 5 5 or 6 5 digits The default is 6 5 The number of displayed digits does n...

Страница 171: ...mple rate but the lower the noise error Trade offs between speed and noise are normally required to tailor the instrument settings to your measurement application If you create test algorithms and you...

Страница 172: ...mains within the selected window the measurements continue to be placed in the stack If the reading changes to a value outside the window the filter resets and starts processing again with a new initi...

Страница 173: ...and do not affect voltage measurements Setting up the averaging filter Using the front panel 1 Select the measurement function The filter will be applied to this function For more information you can...

Страница 174: ...peration is enabled the CALC indicator on the home screen is illuminated Using SCPI commands To set number of measurements to be averaged for current measurements SENS CURR AVER COUN n SENS CONC AVER...

Страница 175: ...ath operations only apply to current measurements and do not affect voltage measurements mx b The mx b math operation lets you manipulate normal display readings x mathematically based on the followin...

Страница 176: ...elect one alpha character for the units of mx b operation Once m b and units are set up you can enable and disable the math operation from the home screen On home screen 2 press the Calculate soft key...

Страница 177: ...ght of the measured value is displayed A relative offset value is saved for each function If you change the measurement function the relative offset value is changed to the setting for that measuremen...

Страница 178: ...ion on page 2 74 2 Press the Next soft key to go to soft key menu 2 3 Under Calculate in the soft key menu select Set and press Enter 4 Press the soft key below Rel The REL indicator to the right of t...

Страница 179: ...tion VOLTage SENSe VOLTage REFerence ACQuire SENSe VOLTage REFerence STATe ON To acquire a relative offset value for another function replace VOLTage with CURRent or CONCurrent Displayed measurements...

Страница 180: ...Section 4 Measurement optimization Series 2280 Precision DC Power Supply Reference Manual 4 16 077085503 March 2019 Figure 82 Data flow...

Страница 181: ...1 Press the MENU key 2 Under Measure select Math 3 Select the button next to Buffer Data Type and press Enter 4 Select Reading or CALC The Reading option selects readings before any math calculations...

Страница 182: ...default instrument configuration Equipment required One Series 2280 Power Supply 1 k resistor Two banana cables Set up remote communications You can run this application from the front panel or any of...

Страница 183: ...ge and current limit on the front panel 1 Press the HOME key The home screen is displayed 2 Press the V Set soft key The editing window is displayed at the bottom 3 Set the voltage to 5 V Enter 5 usin...

Страница 184: ...r Supply Reference Manual Section 5 Application examples 077085503 March 2019 5 3 Figure 84 Voltage and current readback To set the voltage and current limit send the following SCPI commands RST VOLT...

Страница 185: ...1 k resistor Two banana cables Set up remote communications You can run this application from the front panel or any of the supported communication interfaces for the instrument GPIB USB or ethernet T...

Страница 186: ...ncrement the points display until it reads 10 5 Select the Voltage box in the point 1 row Press ENTER 6 Make the value 1 V and press ENTER 7 Select the Current box in the point 1 row Press ENTER 8 Mak...

Страница 187: ...vigation control or the soft keys Press ENTER 3 Select the button next to Sample Count and press the ENTER key 4 Set the sample count to 10 5 Press the HOME key 6 Press the Next soft key twice to navi...

Страница 188: ...erform a fast current load measurement The following example demonstrates how to configure the power supply to perform a fast current measurement initiated by an external trigger on digital line 1 Equ...

Страница 189: ...nel AFG for example AFG3102C or equivalent to generate two synchronous pulse signals One signal is used to control the on and off state of an nMOSFET The other is used as the external triggering signa...

Страница 190: ...ction 5 Application examples 077085503 March 2019 5 9 Figure 89 Fast current measurements setup Connect the digital I O pin 1 and pin 9 with the AFG output channel For details on digital I O refer to...

Страница 191: ...ect Off 9 Select the button next to NPLC and press the ENTER key The number of power line cycles NPLC dialog box is displayed 10 Set the NPLC to 0 01 11 Connect the external trigger signal to digital...

Страница 192: ...on the output To view the current measurements on the front panel 1 Press the MENU key 2 Under Views select Graph You can view the current measurements Figure 91 Graph view of load current When the re...

Страница 193: ...current The green waveform shows the changes of load current and the yellow waveform shows the pulse output Figure 92 Oscilloscope plot To perform a fast current load measurement using SCPI commands...

Страница 194: ...ommand words that are structured to create command messages The command words are separated by colons For example the command words used to enable an average filter are SENSe CONCurrent AVERage STATe...

Страница 195: ...e order that they are presented in the command message An invalid command generates an error message and is not executed Valid commands that precede an invalid command in a command message are execute...

Страница 196: ...you can set defaultParameter for the command SENSe CONCurrent NPLCycles defaultParameter to the minimum maximum or default value To set NPLC to the minimum value you can send either of these commands...

Страница 197: ...ation that you can use to replace state is defined in the Usage section of the command description For this example the usage is state OFF or 0 Disable the beeper ON or 1 Enable the beeper For this ex...

Страница 198: ...you can use to control your instrument Each command description is broken into several standard subsections The figure below shows an example of a command description Figure 93 SCPI command descriptio...

Страница 199: ...s or actions that have a direct effect on the instrument command Recall settings Also known as Recall setup Reload setting from a previous saved setup RCL 1 5 or from the front panel Instrument reset...

Страница 200: ...mand usage Shows how the parts of the command should be organized 2 User supplied parameters Indicated by angle brackets Some commands have optional parameters Optional parameters are presented on sep...

Страница 201: ...I command description example 1 Example code that you can copy from this table and paste into your own application Examples are generally shown using the short forms of the commands 2 Description of t...

Страница 202: ...although these commands are essentially the same as those defined by the IEEE Std 488 2 standard the Series 2280 does not strictly conform to that standard The general remote interface commands are co...

Страница 203: ...clear the event registers and queues It performs the following actions Clear the Standard Event Status Register and Status Byte Register Clear the event register of Questionable Event Questionable In...

Страница 204: ...esponding bit in the Standard Event Status Register is set on the ESB bit of the Status Byte Register is set To set a bit send the constant or the value of the bit as the n parameter When 0 zero is re...

Страница 205: ...le ESR Query the contents of the Standard Event Status Register SESR Example output 145 This output indicates that the SESR contains the binary value 10010001 Also see ESE on page 7 3 Status model on...

Страница 206: ...ot applicable Not applicable Not applicable Usage OPC OPC Details When the OPC command is sent the OPC bit bit 0 in the Status Event Status Register is set after all pending command operations have be...

Страница 207: ...y the setting by sending the language query Output SCPI The SCPI command set is in use Also see None RCL This command returns the instrument to the setup that was saved with the SAV command Type Affec...

Страница 208: ...lues on page 2 88 SAV This command saves the present instrument settings as a user saved setup Type Affected by Where saved Default value Command only Not applicable Nonvolatile memory Not applicable...

Страница 209: ...to clear all bits To query the Status Request Enable Register send the SRE command The instrument returns a decimal value that corresponds to the binary weighted sum of all of the bits set in the reg...

Страница 210: ...to generate a trigger event Using TRG has the same effect as a group execute trigger GET Use the TRG command as an event to control operation The instrument reacts to this trigger if BUS is the progra...

Страница 211: ...previous overlapped commands are finished Type Affected by Where saved Default value Command only Not applicable Not applicable Not applicable Usage WAI Details There are two types of instrument comma...

Страница 212: ...tion subsystem on page 7 34 OPC on page 7 5 TRG on page 7 9 ABORt n This command stops all trigger model commands on the instrument Type Affected by Where saved Default value Command only Not applicab...

Страница 213: ...ies Concurrent CONCurrent DC Current CURRent DC Voltage VOLTage DC range The range value Current range and concurrent range 10 mA range 0 01 100 mA range 0 1 1 A range 1 10 A range 10 Voltage range Mo...

Страница 214: ...ost processed reading This command does not trigger a measurement It simply requests the last available reading If you send this command more than once and there are no new readings it will return the...

Страница 215: ...of the elements The options for item list are described in the following table Element Description Example output READing The measurement reading based on the measurement function 8 034562E 03 SOURce...

Страница 216: ...is 1 Details This command is used to bypass the control source of Arm layer or Trigger layer For details refer to Trigger model on page 3 25 Example Bypass the control source of the arm layer RST INIT...

Страница 217: ...lue is 1 function The measurement function to which this setting applies Concurrent CONCurrent DC Current CURRent DC Voltage VOLTage DC range The range value Current range and concurrent range 10 mA r...

Страница 218: ...ommand is sent the following commands execute in the following order CONFigure n function READ n When CONFigure is executed the MEASure parameters range and resolution are executed and the instrument...

Страница 219: ...Channel number For single channel instruments the value is 1 Details When this command is sent the following commands execute in the order they are presented ABORt INITiate FETCh When this command is...

Страница 220: ...e Affected by Where saved Default value Command and query Recall settings Instrument reset Power cycle Save settings 1 Usage ARM SEQuence n COUNt count ARM SEQuence n COUNt ARM SEQuence n COUNt DEFaul...

Страница 221: ...nce n SOURce source ARM SEQuence n SOURce n Channel number For single channel instruments the value is 1 source The trigger source for the arm layer Immediate triggering no delay or gating in arm dete...

Страница 222: ...o which this setting applies Concurrent CONCurrent DC Current CURRent DC Voltage VOLTage DC name The name of the math operation y mx b MXB channel The channel number default value is CH1 Channel 1 CH1...

Страница 223: ...ction The measurement function to which this setting applies Concurrent CONCurrent DC Current CURRent DC Voltage VOLTage DC n The offset for the y mx b operation the valid range is 1e6 to 1e6 channel...

Страница 224: ...on page 7 26 CALCulate 1 function KMATh MMFactor This command specifies the scale factor for the y mx b math operation Type Affected by Where saved Default value Command and query Recall settings Ins...

Страница 225: ...fset this is the measurement with relative offset applied b is the user defined constant for the offset factor Example CALC VOLT FORM MXB CALC VOLT KMAT MMF 0 80 CALC VOLT KMAT MBF 50 CALC VOLT KMAT M...

Страница 226: ...DC string The units for the mx b calculation this parameter must be one character enclosed in single or double quotes It can be any letter of the alphabet channel The channel number default value is...

Страница 227: ...peration ON or 1 Disable math operation OFF or 0 channel The channel number default value is CH1 Channel 1 CH1 Channel 2 CH2 Details When this command is set to on the math operation specified by the...

Страница 228: ...calculation results of statistics You can get the results in the following order Minimum MINimum Maximum MAXimum Mean MEAN Standard deviation SDEViation Peak to peak PKPK If the specified statistics...

Страница 229: ...MIN MAX MEAN PKPK and SDEV 5 986128E 00V 5 987489E 00V 5 986298E 00V 1 360 893E 03V 4 204334E 04V CALC2 DATA returns reading and units for MAX and SDEV 5 987489E 00V 4 204334E 04V Also see CALCulate2...

Страница 230: ...T CALC2 FORM ELEM READ UNIT TST RNUM CALC2 FORM MIN MAX CALC2 IMM CALC2 FORM MIN MAX MEAN PKPK SDEV CALC2 IMM CALC2 FORM MAX SDEV CALC2 DATA Before the calculation start the trigger model to take 10 r...

Страница 231: ...itemList CALCulate2 FORMat ELEMents itemList channel CALCulate2 FORMat ELEMents CALCulate2 FORMat ELEMents channel itemList The available data elements Voltage and current reading READing Reading unit...

Страница 232: ...units for MAX and SDEV 5 987489E 00V 4 204334E 04V Also see CALCulate2 FORMat on page 7 28 CALCulate2 IMMediate on page 7 32 CALCulate2 STATe on page 7 34 CALCulate2 FUNCtion This command specifies w...

Страница 233: ...5 986128E 00V 5 987489E 00V 5 986298E 00V 1 360 893E 03V 4 204334E 04V CALC2 DATA returns reading and units for MAX and SDEV 5 987489E 00V 4 204334E 04V Also see CALCulate2 FORMat on page 7 28 CALCul...

Страница 234: ...RST TRAC CLE TRIG COUN 10 VOLT 6 OUTP ON INIT OPC CALC2 STATE ON CALC2 FUNC VOLT CALC2 FORM ELEM READ UNIT TST RNUM CALC2 FORM MIN MAX CALC2 IMM CALC2 FORM MIN MAX MEAN PKPK SDEV CALC2 IMM CALC2 FORM...

Страница 235: ...G COUN 10 VOLT 6 OUTP ON INIT OPC CALC2 STATE ON CALC2 FUNC VOLT CALC2 FORM ELEM READ UNIT TST RNUM CALC2 FORM MIN MAX CALC2 IMM CALC2 FORM MIN MAX MEAN PKPK SDEV CALC2 IMM CALC2 FORM MAX SDEV CALC2 D...

Страница 236: ...cted CANCel This command cancels the calibration procedures and drops the new constants Type Affected by Where saved Default value Command only Not applicable Not applicable Not applicable Usage CALib...

Страница 237: ...using the following command CAL PROT STAT ON password Example CAL PROT CODE 12345678 Change the calibration password to 12345678 Also see CALibration PROTected STATe on page 7 44 CALibration PROTected...

Страница 238: ...le Nonvolatile memory Not applicable Usage CALibration PROTected DATA Details For details refer to Calibration constants on page C 25 Example CAL PROT DATA Return the calibration constants in order 4...

Страница 239: ...Default value Command and query Not applicable Nonvolatile memory Not applicable Usage CALibration PROTected DATE year month day CALibration PROTected DATE year Year must be more than 1970 month Mont...

Страница 240: ...DC n STEP6 CALibration PROTected DC n STEP7 CALibration PROTected DC n STEP8 n Channel number For single channel instruments the value is 1 step The following steps represent the entire calibration p...

Страница 241: ...esistance readings from the external DMM OPC Wait until step 4 finishes When finished this command returns 1 CAL PROT STEP5 Start current ADC zero point calibration on the 10 A range CAL PROT STEP5 DA...

Страница 242: ...esistance CALibration PROTected DC n STEP6 DATA CALibration PROTected DC n STEP7 DATA voltage resistance CALibration PROTected DC n STEP8 DATA n Channel number For single channel instruments the value...

Страница 243: ...s When finished this command returns 1 CAL PROT STEP5 Start current ADC zero point calibration on the 10 A range CAL PROT STEP5 DATA 0 00298 0 0496 Enter the voltage and resistance readings from the e...

Страница 244: ...on procedure has been completed Type Affected by Where saved Default value Command only Not applicable Nonvolatile memory Not applicable Usage CALibration PROTected SAVE Details If the instrument exit...

Страница 245: ...The password for calibration The maximum length is 8 characters Not case sensitive Details Use this command to enable the calibration mode After enabled you can configure and control calibration oper...

Страница 246: ...ion The pin state see Details for values Details Set function to one of the values shown in the following table Value Description AUTO Automatically specify the pin state This function only applies to...

Страница 247: ...pplicable Not applicable Usage DIGital LINE n MANual INPut DATA n The digital I O line 1 to 6 Details This command queries the manual input digital I O line If the line is not assigned to manual input...

Страница 248: ...nd query Not applicable Nonvolatile memory ON50 Usage DISPlay BRIGhtness brightness DISPlay BRIGhtness DISPlay BRIGhtness DEFault DISPlay BRIGhtness MINimum DISPlay BRIGhtness MAXimum brightness The b...

Страница 249: ...Where saved Default value Command only Not applicable Not applicable Not applicable Usage DISPlay CLEar channel channel The channel number default value is CH1 Channel 1 CH1 Channel 2 CH2 Details This...

Страница 250: ...e front panel Type Affected by Where saved Default value Command only Power cycle Not applicable Not applicable Usage DISPlay SCREen screenName screenName The screen is displayed Home screen HOME Grap...

Страница 251: ...24 characters channel The channel number default value is CH1 Channel 1 CH1 Channel 2 CH2 Details These commands define text messages for the OUTPUT view screen If you enter too many characters the i...

Страница 252: ...e n CONTinuous n Channel number For single channel instruments the value is 1 state Disable continuous triggering OFF or 0 Enable continuous triggering ON or 1 Details With continuous initiation enabl...

Страница 253: ...external USB flash drive MMEMory LOAD SETup This command recalls the specified setup from the external USB flash drive to the instrument Type Affected by Where saved Default value Command only Not app...

Страница 254: ...applicable Not applicable Not applicable Usage MMEMory SAVE SETup fileName fileName A string that contains a name for the saved setup maximum 8 characters Detail This command allows you to save the p...

Страница 255: ...channel OUTPut DELay FALLing OUTPut DELay FALLing channel OUTPut DELay FALLing DEFault OUTPut DELay FALLing DEFault channel OUTPut DELay FALLing MINimum OUTPut DELay FALLing MINimum channel OUTPut DEL...

Страница 256: ...Sing channel OUTPut DELay RISing DEFault OUTPut DELay RISing DEFault channel OUTPut DELay RISing MINimum OUTPut DELay RISing MINimum channel OUTPut DELay RISing MAXimum OUTPut DELay RISing MAXimum cha...

Страница 257: ...ettings 0 OFF Usage OUTPut DELay STATe state OUTPut DELay STATe state Disable output delay OFF or 0 Enable output delay ON or 1 Details When output delay is set to ON the instrument waits the specifie...

Страница 258: ...Usage OUTPut PROTection CLEar OUTPut PROTection CLEar channel channel The channel number default value is CH1 Channel 1 CH1 Channel 2 CH2 Details Clears the protection status if an overvoltage overcur...

Страница 259: ...l The channel number default value is CH1 Channel 1 CH1 Channel 2 CH2 Channel 2 CH2 The Details There are six types of responses including OCP indicates over current protection occurred OVP indicates...

Страница 260: ...query Recall settings Instrument reset Power cycle Save settings 0 OFF Usage OUTPut STATe state OUTPut STATe state channel OUTPut STATe state Turn source off OFF or 0 Turn source on ON or 1 Disable so...

Страница 261: ...ncurrent current or voltage Type Affected by Where saved Default value Command and query Recall settings Instrument reset Power cycle Save settings CONC Usage SENSe n FUNCtion name SENSe n FUNCtion n...

Страница 262: ...m SENSe n function AVERage COUNt MAXimum n Channel number For single channel instruments the value is 1 function The measurement function to which this setting applies Concurrent CONCurrent DC Current...

Страница 263: ...to which this setting applies Concurrent CONCurrent DC Current CURRent DC Voltage VOLTage DC state The filter status set to one of the following values Disable the averaging filter OFF or 0 Enable the...

Страница 264: ...o one of the following values Moving filter MOVing Details This command selects the type of averaging filter Moving average When the moving average filter is selected the measurements are added to the...

Страница 265: ...channel instruments the value is 1 function The measurement function to which this setting applies Concurrent CONCurrent DC Current CURRent DC Voltage VOLTage DC value The filter window 0 01 to 100 Th...

Страница 266: ...is setting applies Concurrent CONCurrent DC Current CURRent DC Voltage VOLTage DC value 4 5 digit resolution 4 5 5 digit resolution 5 6 5 digit resolution 6 Details This command affects how the readin...

Страница 267: ...ine cycles for each measurement 0 002 to 12 for 50 Hz 0 002 to 15 for 60 Hz Details This command sets the amount of time that the input signal is measured The amount of time is specified in parameters...

Страница 268: ...CURRent DC RANGe DEFault SENSe n CURRent DC RANGe MINimum SENSe n CURRent DC RANGe MAXimum SENSe n VOLTage DC RANGe range SENSe n VOLTage DC RANGe n Channel number For single channel instruments the v...

Страница 269: ...ting takes effect immediately When you assign a specific value to this command the instrument is set on a fixed range that is large enough to measure the assigned value The instrument selects the best...

Страница 270: ...this setting applies Concurrent CONCurrent DC Current CURRent DC state Set the measurement range manually OFF or 0 Set the measurement range automatically ON or 1 Details This command determines how t...

Страница 271: ...oncurrent and current 6 1 to 6 1 A for Model 2280S 32 6 3 3 to 3 3 A for Model 2280S 60 3 Voltage 32 to 32 V for Model 2280S 32 6 60 to 60 V for Model 2280S 60 3 Details This command specifies the rel...

Страница 272: ...ons even if they are set It is as if these settings are disabled After executing this command you can use the following command to see the last relative level value that was acquired or that was set S...

Страница 273: ...e VOLTage DC state Disable the relative offset OFF or 0 Enable the relative offset ON or 1 Details This attribute enables or disables relative measurements When relative measurements are enabled all s...

Страница 274: ...ffects how the reading for a measurement is displayed on the front panel of the instrument It also affects the accuracy or speed of measurements When a resolution is selected the number of power line...

Страница 275: ...Lay value SOURce n DELay n Channel number For single channel instruments the value is 1 value Delay 0 to 99 s Resolution 0 00001 s Details This command sets a delay for the source After the programmed...

Страница 276: ...reset Power cycle Save settings 1 ON Usage SOURce n DELay STATe state SOURce n DELay STATe n Channel number For single channel instruments the value is 1 state Disable the source delay OFF or 0 Enabl...

Страница 277: ...Rce n CURRent PROTection LEVel SOURce n CURRent PROTection LEVel DEFault SOURce n CURRent PROTection LEVel MINimum SOURce n CURRent PROTection LEVel MAXimum n Channel number For single channel instrum...

Страница 278: ...nt LEVel IMMediate AMPLitude value SOURce n CURRent LEVel IMMediate AMPLitude SOURce n CURRent LEVel IMMediate AMPLitude DEFault SOURce n CURRent LEVel IMMediate AMPLitude MINimum SOURce n CURRent LEV...

Страница 279: ...t AMPLitude SOURce n VOLTage LIMit AMPLitude DEFault SOURce n VOLTage LIMit AMPLitude MINimum SOURce n VOLTage LIMit AMPLitude MAXimum n Channel number For single channel instruments the value is 1 va...

Страница 280: ...age SLEW RISing SOURce n VOLTage SLEW RISing DEFault SOURce n VOLTage SLEW RISing MINimum SOURce n VOLTage SLEW RISing MAXimum n Channel number For single channel instruments the value is 1 value The...

Страница 281: ...e SLEW FALLing SOURce n VOLTage SLEW FALLing DEFault SOURce n VOLTage SLEW FALLing MINimum SOURce n VOLTage SLEW FALLing MAXimum n Channel number For single channel instruments the value is 1 value Th...

Страница 282: ...The setting values delimited by commas the maximum length of a string is 2048 Details This command defines a list of up to 99 values for a specified list Creating a list with more than 99 step points...

Страница 283: ...cted by Where saved Default value Command only Instrument reset Nonvolatile memory Not applicable Usage SOURce n LIST listNumber element APPend string n Channel number For single channel instruments t...

Страница 284: ...ge 7 81 SOURce n LIST SAVE INTernal on page 7 90 SOURce n LIST listNumber element POINts This command queries the length of the specified list Type Affected by Where saved Default value Query only Ins...

Страница 285: ...his command allows you to end a specified list with the last source value or zero value Example LIST END ZERO ON List ends with the 0 V and 0 1000 A Also see None SOURce n LIST HTIMe This command dete...

Страница 286: ...icable Usage SOURce n LIST LOAD USB listNumber fileName n Channel number For single channel instruments the value is 1 listNumber An integer from 1 to 9 that represents the specified location where th...

Страница 287: ...lue is 1 type The time you can choose to generate STEP After each list step the instrument will generate a measure complete pulse you can detect this pulse on digital I O line 2 for more information r...

Страница 288: ...is used Sending the command LIST RCL returns the active list number Example 1 Sweep list with BUS trigger hold time type TIME RST Define list LIST1 VOLT 1 2 3 4 5 LIST1 CURR 0 5 1 1 5 2 2 5 LIST1 DWEL...

Страница 289: ...t mode Start the trigger model Run the lists Dwell time is ignored in this mode The lists run until the preset points are logged All the readings will be stored in data buffer Example 3 Step list with...

Страница 290: ...the voltage list 1 with 2 points Program the current list 1 with 2 points Program the dwell list 1 with 2 points Save list 1 to nonvolatile memory Recall list 1 Select STEP mode Set hold time type to...

Страница 291: ...ror 202 List lengths not equivalent is generated If a list already exists for the specified list number the new list overwrites the existing list Example LIST1 VOLT 1 2 LIST1 CURR 0 5 1 LIST1 DWEL 0 5...

Страница 292: ...so see SOURce n LIST LOAD USB on page 7 85 SOURce n LIST STATe This command enables or disables the list mode Type Affected by Where saved Default value Command and query Recall settings Instrument re...

Страница 293: ...ger model Run the lists Hold time is the sum of the dwell time of 5 points All the readings will be stored in data buffer Example 2 Sweep list with BUS trigger hold time type POINt RST Define list LIS...

Страница 294: ...del Program the voltage list 1 with 2 points Program the current list 1 with 2 points Program the dwell list 1 with 2 points Save list 1 to nonvolatile memory Recall list 1 Select STEP mode Set hold t...

Страница 295: ...ints Program the dwell list 1 with 2 points Save list 1 to nonvolatile memory Recall list 1 Select STEP mode Set hold time type to POINt Select the BUS arm source Set Arm count to list points Set trig...

Страница 296: ...that corresponds to the binary weighted sum of all bits set in the register For details see Measurement Event Register on page D 17 Also see None STATus MEASurement ENABle This command sets or reads t...

Страница 297: ...ement INSTrument EVENt This command reads and clears the Measurement Instrument Event Register of the status model Type Affected by Where saved Default value Query only Not applicable Not applicable N...

Страница 298: ...Register Details This command sets or reads the contents of the enable register of the Measurement Instrument Event Register When one of these bits is set and the corresponding bit in the Measurement...

Страница 299: ...ble Not applicable Not applicable Usage STATus MEASurement INSTrument ISUMmary EVENt Details This attribute reads the Measurement Instrument Summary Event Register of the status model and clears the r...

Страница 300: ...Enable Register Details This command sets or reads the contents of the enable register of the Measurement Instrument Summary Event Register MISER When one of these bits is set and the corresponding b...

Страница 301: ...alue of a register see Measurement Instrument Summary Event Register on page D 19 Example STAT MEAS INST ISUM COND Returns the contents of the Measurement Instrument Summary Condition Register of the...

Страница 302: ...e n with b When sending hexadecimal values preface n with h No preface is needed when sending decimal values Example STAT OPER ENAB b0010000000000000 Sets the Operation Status Enable Register using a...

Страница 303: ...ion Instrument Enable Register Details This command sets or reads the contents of the Enable register of the Operation Instrument Event Register When one of these bits is set and the corresponding bit...

Страница 304: ...icable Not applicable Not applicable Usage STATus OPERation INSTrument ISUMmary EVENt Details This attribute reads the Operation Instrument Summary Event Register of the status model and clears the re...

Страница 305: ...ble Register Details This command sets or reads the contents of the enable register of the Operation Instrument Summary Event Register OISER When one of these bits is set and the corresponding bit in...

Страница 306: ...COND Returns the contents of the Operation Instrument Summary Condition Register of the status model Also see Operation Instrument Summary Event Register on page D 13 STATus PRESet This command resets...

Страница 307: ...t value Query only Not applicable Not applicable Not applicable Usage STATus QUEStionable EVENt Details This command reads the Questionable Event Register of the status model and then clears the regis...

Страница 308: ...eface n with b When sending hexadecimal values preface n with h No preface is needed when sending decimal values Example STAT QUES ENAB b0010000000000000 Sets the operation Status Enable Register usin...

Страница 309: ...le Register Details This command sets or reads the contents of the enable register of the Questionable Instrument Event Register When one of these bits is set and the corresponding bit in the Question...

Страница 310: ...ster of the status model Also see Questionable Instrument Summary Event Register on page D 16 STATus QUEStionable INSTrument ISUMmary ENABle This command sets or reads the contents of the Questionable...

Страница 311: ...page D 16 STATus QUEStionable INSTrument ISUMmary CONDition This command reads the Questionable Instrument Summary Condition Register of the status model Type Affected by Where saved Default value Qu...

Страница 312: ...ument reset Power cycle Save settings 1 ON Usage SYSTem AZERo n STATe state SYSTem AZERo n STATe n Channel number For single channel instruments the value is 1 state Disable autozero OFF or 0 Enable a...

Страница 313: ...value Command and query Recall settings Instrument reset Power cycle Save settings 1 ON Usage SYSTem BEEPer ERRor STATe state SYSTem BEEPer ERRor STATe state Disable the beeper OFF or 0 Enable the be...

Страница 314: ...e all the others are blocked When this command is sent by one of the interfaces the present active interface is blocked and the interface that sends SYST COMM ABOR becomes active Before you use this c...

Страница 315: ...cifies how the LAN IP address and other LAN settings are assigned If automatic configuration is selected the instrument automatically determines the LAN information When the method is automatic the in...

Страница 316: ...n The string includes colons that separate the address octets Example SYSTem COMMunication LAN MACaddress Returns the MAC address For example you might see 00 60 1A 00 00 57 Also see None SYSTem DATE...

Страница 317: ...FIFO register that can hold up to 64 messages This command returns the next entry from the error queue Errors are cleared after you read them If there are no entries in the error queue the following...

Страница 318: ...so clears the returned error SYSTem ERRor Example SYST ERR CODE Returns the error number of the last error in the error queue For example if error 222 Parameter data out of range error occurred the ou...

Страница 319: ...log csv Also see SYSTem ERRor CLEar on page 7 116 SYSTem GPIB ADDRess This command sets the GPIB address Type Affected by Where saved Default value Command and query Not applicable Nonvolatile memory...

Страница 320: ...mmunication on page 2 45 SYSTem KCLick This command allows you to enable or disable the key click sound Type Affected by Where saved Default value Command and query Recall settings Instrument reset Po...

Страница 321: ...nstrument is in remote operation all the front panel keys except the LOCAL and OUTPUT keys are locked out When this command is sent the instrument restores operation of the front panel controls Howeve...

Страница 322: ...the line frequency Also see None SYSTem PASSword LOCK This command sets a remote interface to lock mode Type Affected by Where saved Default value Command only Not applicable Not applicable admin Usa...

Страница 323: ...password protection Also see SYSTem PASSword LOCK on page 7 121 SYSTem PASSword NEW on page 7 122 SYSTem PASSword UNLock on page 7 123 SYSTem PASSword NEW This command sets a new password for the rem...

Страница 324: ...e 7 122 SYSTem PASSword UNLock on page 7 123 SYSTem PASSword UNLock This command enables a remote interface Type Affected by Where saved Default value Command only Not applicable Not applicable admin...

Страница 325: ...Also see SAV on page 7 7 SYSTem PRESet This command returns the instrument to the factory default conditions and erases all user data stored in nonvolatile memory Type Affected by Where saved Default...

Страница 326: ...formation Also see RST on page 7 7 Reset default values on page 2 88 SYSTem RWLock This command locks out front panel controls Type Affected by Where saved Default value Command only Not applicable No...

Страница 327: ...format 0 to 23 minute Minute 0 to 60 second Second 0 to 60 Details The query command returns the present timestamp in the format hour minute second Example SYST TIME 5 51 30 Set the system time to 05...

Страница 328: ...CLE Clear the data buffer Also see Clearing buffer on page 3 18 DATA n CLEar AUTO This command enables or disables the autoclear feature for the buffer Type Affected by Where saved Default value Comma...

Страница 329: ...e all readings that are stored in the buffer You can send this command even if the instrument is still storing readings When DATA DATA is sent it will return the readings stored up to that point in ti...

Страница 330: ...timestamp for the data point 07 01 2013 19 21 36 2556 RELative The relative time when the data point was measured formatted in seconds 4 430876E 00s RSTamp The relative time when the data point was me...

Страница 331: ...T and RELative see Details for a list of options Details The start parameter specifies the first stored reading to return The first stored reading in the buffer is 1 The end parameter specifies the la...

Страница 332: ...2556 TSTamp The timestamp for the data point 07 01 2013 19 21 36 2556 RELative The relative time when the data point was measured formatted in seconds 4 430876E 00s RSTamp The relative timestamp when...

Страница 333: ...el number For single channel instruments the value is 1 name Select the source of readings Store the readings before the math calculation SENSe Store the readings after the math calculation CALCulate...

Страница 334: ...dings buffer size is stored buffer operation is disabled Fill continuous ALWays After the specified number of readings is stored operation wraps back to the first buffer location and overwrites the pr...

Страница 335: ...single channel instruments the value is 1 newSize The new size for the buffer 2 to 2500 Details Use this command to read the number of measurements that a buffer can store Example DATA POIN Query the...

Страница 336: ...mand enables or disables the autoclear feature for the buffer Type Affected by Where saved Default value Command and query Power cycle Not applicable 1 ON Usage TRACe n CLEar AUTO state TRACe n CLEar...

Страница 337: ...instrument is still storing readings When TRACe DATA is sent it will return the readings stored up to that point in time Subsequent TRACe DATA commands will not retrieve readings already returned Howe...

Страница 338: ...2013 19 21 36 2556 RELative The relative time when the data point was measured formatted in seconds 4 430876E 00s RSTamp The relative time when the data point was measured 12 23 32 2349 RNUMber The re...

Страница 339: ...T and RELative see Details for a list of options Details The start parameter specifies the first stored reading to return The first stored reading in the buffer is 1 The end parameter specifies the la...

Страница 340: ...2556 TSTamp The timestamp for the data point 07 01 2013 19 21 36 2556 RELative The relative time when the data point was measured formatted in seconds 4 430876E 00s RSTamp The relative timestamp when...

Страница 341: ...nel number For single channel instruments the value is 1 name Select the source of readings Store the readings before the math calculation SENSe Store the readings after the math calculation CALCulate...

Страница 342: ...adings buffer size are stored buffer operation is disabled Fill continuous ALWays after the specified number of readings are stored operation wraps back to the first buffer location and overwrites the...

Страница 343: ...or single channel instruments the value is 1 newSize The new size for the buffer 2 to 2500 Details Use this command to read the number of measurements that a buffer can store Example TRAC POIN Query t...

Страница 344: ...seconds are saved the default value TSTamp Relative time stamps in seconds are saved RELative Relative time stamps are saved RSTamp For details about time format see TRACe n DATA on page 7 136 start...

Страница 345: ...value Also see TRACe n TRIGger CURRent STATe on page 7 145 TRACe n TRIGger CURRent LEVel on page 7 144 TRACe n TRIGger CURRent LEVel This command configures the current threshold value for the level t...

Страница 346: ...determines whether the current level trigger function is enabled Type Affected by Where saved Default value Command and query Power cycle Not applicable 0 OFF Usage TRACe n TRIGger CURRent STATe stat...

Страница 347: ...IG OCC Queries whether a level trigger has occurred If a level trigger has occurred the value of 1 will be returned Also see None TRACe n TRIGger OFFSet This command defines the number of points at wh...

Страница 348: ...shold value Also see TRACe n TRIGger VOLTage STATe on page 7 148 TRACe n TRIGger VOLTage LEVel on page 7 147 TRACe n TRIGger VOLTage LEVel This command configures the voltage threshold for the level t...

Страница 349: ...This command determines whether the voltage level trigger function is enabled Type Affected by Where saved Default value Command and query Power cycle Not applicable 0 OFF Usage TRACe n TRIGger VOLTag...

Страница 350: ...Affected by Where saved Default value Command and query Recall settings Instrument reset Power cycle Save settings 1 Usage TRIGger SEQuence n COUNt count TRIGger SEQuence n COUNt TRIGger SEQuence n CO...

Страница 351: ...settings 1 Usage TRIGger SEQuence n SAMPle COUNt count TRIGger SEQuence n SAMPle COUNt TRIGger SEQuence n SAMPle COUNt DEFault TRIGger SEQuence n SAMPle COUNt MINimum TRIGger SEQuence n SAMPle COUNt M...

Страница 352: ...ttings IMM Usage TRIGger SEQuence n SOURce source TRIGger SEQuence n SOURce n Channel number For single channel instruments the value is 1 source The trigger source for trigger layer Immediate trigger...

Страница 353: ...er reviewing this information please contact your local Keithley Instruments representative or call Keithley Instruments corporate headquarters toll free inside the U S and Canada only at 800 935 5595...

Страница 354: ...is turned on 2 Verify the power line voltage settings Check that the line voltage selector switch on the rear panel is set to the proper value for your country 100 VAC 120 VAC or 220 VAC 240 VAC Chang...

Страница 355: ...ing the setup procedure Verify that the network card of the computer is enabled Verify that the IP address of the instrument is compatible with the IP address on the computer Verify that the subnet ma...

Страница 356: ...definite response 430 Query DEADLOCKED 420 Query UNTERMINATED 410 Query INTERRUPTED 405 Request control 404 Power fail 403 User request 402 Operation complete 401 Power on 400 Query event 363 Input bu...

Страница 357: ...rectory full 254 Media full 253 Corrupt media 252 Missing media 251 Missing mass storage 250 Mass storage error 243 Hardware I O device error 242 Hardware configuration error 241 Hardware missing 240...

Страница 358: ...alid block data 160 Block data error 158 String data not allowed 154 String too long 152 String data too long 151 Invalid string data 150 String data error 148 Character data not allowed 144 Character...

Страница 359: ...save failed 107 Calibration data lost 108 Busy on current step wait until this step is completed 109 Not permitted with cal unlocked 110 Step1 Kmath error 111 Step1 V DAC zero DMM reading out of range...

Страница 360: ...rforming cal from front panel List errors 200 List error 201 Too many list points 202 List lengths not equivalent 203 Assigning data to undefined list 204 Attempt to run an empty list 205 Save list fa...

Страница 361: ...510 Parameter error 511 Communication not permitted 520 No USB flash drive found 521 Cannot open file 522 Load file from USB flash drive failed 523 Save file to USB flash drive failed 530 Attempt to c...

Страница 362: ...The product documentation The Knowledge Center which contains the following handbooks The Low Level Measurements Handbook Precision DC Current Voltage and Resistance Measurements Switching Handbook A...

Страница 363: ...if the fuse is damaged Disconnect the line cord at the rear panel and remove all test leads connected to the instrument before replacing a line fuse Failure to do so could expose the operator to hazar...

Страница 364: ...k into the power module If the power line fuses continue to become damaged a circuit malfunction exists and must be corrected Return the instrument to Keithley Instruments for repair Upgrading the fir...

Страница 365: ...rade or downgrade is in progress Wait until the instrument completes the procedure and shows the opening display From the front panel Do not turn off power or remove the USB flash drive until the upgr...

Страница 366: ...ersonal injury or death Do not attempt to perform these procedures unless you are qualified to do so Since the Series 2280 series of instruments have overvoltage protection built in you should perform...

Страница 367: ...age B 2 and use it to record the performance test results for your power supply Completion of the performance verification procedure does not update the stored time and date of the latest successful a...

Страница 368: ...se DC voltage accuracy without remote sense DC voltage readback accuracy DC voltage line regulation DC voltage load regulation DC voltage detection DC current accuracy DC current readback accuracy 10...

Страница 369: ...V Measured voltage V 0 test voltage 2280S 32 6 0 3 0 003 0 003 2280S 60 3 0 1 6 0 006 0 006 25 test voltage 2280S 32 6 8 3 7 9954 8 0046 2280S 60 3 15 1 6 14 991 15 009 50 test voltage 2280S 32 6 16 3...

Страница 370: ...asured voltage V 0 test voltage 2280S 32 6 0 3 0 0045 0 0045 2280S 60 3 0 1 6 0 0068 0 0068 25 test voltage 2280S 32 6 8 3 7 9939 8 0061 2280S 60 3 15 1 6 14 9902 15 0098 50 test voltage 2280S 32 6 16...

Страница 371: ...V Test current A Measured voltage V DUT readback V Absolute difference mV Maximum difference mV 0 test voltage 2280S 32 6 0 3 2 2280S 60 3 0 1 6 4 25 test voltage 2280S 32 6 8 3 3 6 2280S 60 3 15 1 6...

Страница 372: ...voltage V Test current A Measured voltage V DUT readback V Absolute difference mV Maximum difference mV 0 test voltage 2280S 32 6 0 2 3 2280S 60 3 0 4 6 25 test voltage 2280S 32 6 8 2 4 6 2280S 60 3 1...

Страница 373: ...ly Reference Manual Appendix B Verification 077085503 March 2019 B 7 DC voltage load regulation Model number Minimum V Nominal V Maximum V Nominal Minimum V Maximum Nominal V Largest V Maximum value V...

Страница 374: ...Maximum V Measured voltage V 10 OVP setting 2280S 32 6 3 2 2 942 3 458 2280S 60 3 6 5 485 6 515 25 OVP setting 2280S 32 6 8 7 73 8 27 2280S 60 3 15 14 4625 15 5375 50 OVP setting 2280S 32 6 16 15 71 1...

Страница 375: ...rrent A 0 test current 2280S 32 6 16 0 0 005 0 005 2280S 60 3 30 0 0 005 0 005 25 test current 2280S 32 6 16 1 5 1 49425 1 50575 2280S 60 3 30 0 8 0 7946 0 80504 50 test current 2280S 32 6 16 3 2 9935...

Страница 376: ...ack accuracy on 10 A range Model number Test current A Measured current A DUT readback A Absolute difference mA Maximum difference mA 0 test current 2280S 32 6 0 0 25 2280S 60 3 0 0 25 25 test current...

Страница 377: ...on 1 A range Model number Test current A Measured current A DUT readback A Absolute difference mA Maximum difference mA 0 test current 2280S 32 6 0 0 25 2280S 60 3 0 0 25 10 test current 2280S 32 6 0...

Страница 378: ...range Model number Test current mA Measured current mA DUT readback mA Absolute difference mA Maximum difference A 0 test current 100 mA 2280S 32 6 0 10 2280S 60 3 0 10 10 test current 100 mA 2280S 3...

Страница 379: ...nce mA Maximum difference A 0 test current 10 mA 2280S 32 6 0 10 2280S 60 3 0 10 10 test current 10 mA 2280S 32 6 1 10 5 2280S 60 3 1 10 5 50 test current 10 mA 2280S 32 6 5 12 5 2280S 60 3 5 12 5 100...

Страница 380: ...ion Model number DUT voltage V Test current A Min A Nom A Max A Nom Min mA Max Nom mA Largest mA Max value A 2280S 32 6 16 6 0 00085 2280S 60 3 30 3 2 0 00052 DC current load regulation Model number M...

Страница 381: ...P setting value A Minimum A Maximum A Measured current A 25 OCP setting 2280S 32 6 1 5 1 39625 1 60375 2280S 60 3 0 8 0 698 0 902 50 OCP setting 2280S 32 6 3 2 8925 3 1075 2280S 60 3 1 6 1 496 1 704 7...

Страница 382: ...rrent A DUT voltage V Maximum mV Measured voltage mV 20 MHz voltage ripple RMS 2280S 32 6 3 32 1 2280S 60 3 1 6 60 2 20 MHz voltage ripple PKPK 2280S 32 6 3 32 5 2280S 60 3 1 6 60 7 Current noise at 2...

Страница 383: ...cessary to partially test the DUT using an individual test a 20 minute warm up period is required for the individual test You must connect the DUT and the test equipment to the same AC power circuit C...

Страница 384: ...tion wires 50 m precision shunt resistor 50 m precision shunt with 5 ppm at 25 C 4 ppm C temperature coefficient Isotek Corp RUG Z R050 0 1 TK1 5 precision shunt resistor 5 precision shunt with 25 ppm...

Страница 385: ...her alternative is to use a fork lug between the DUT and the load and separate connections using fork lugs holding the wiring for one or both of the voltmeter and remote sense A third alternative is t...

Страница 386: ...e DC voltage readback accuracy with remote sense on page B 5 table 13 Increase the DUT output voltage by 25 of the full scale output voltage 14 Repeat step 10 and step 11 until you complete testing at...

Страница 387: ...3 Voltage accuracy and protection test setup Make sure the warm up criteria have been met as described in the Performance verification conditions To ensure accurate measurements the voltmeter must be...

Страница 388: ...e Set to draw a constant current at the test current specified for the DUT in the DC voltage setting accuracy without remote sense on page B 4 table 3 Set the DUT to the full scale output current 4 Se...

Страница 389: ...ng figure Figure 105 Voltage readback accuracy without remote sense test setup Make sure the warm up criteria have been met as described in the Performance verification conditions To ensure accurate m...

Страница 390: ...ge 0 V 4 Turn the DUT output on 5 Enter the voltmeter reading in the DC voltage readback accuracy without remote sense on page B 6 table 6 Enter the DUT readback voltage in the DC voltage readback acc...

Страница 391: ...on DC Power Supply Reference Manual Appendix B Verification 077085503 March 2019 B 25 Check DC voltage line regulation Set up the equipment as shown in the following figure Figure 106 Voltage line reg...

Страница 392: ...V ensuring that voltage is being read 3 Set the electronic load as follows Set to constant current CC mode Set to draw the specified test current Model Test current 2280S 32 6 3 A 2280S 60 3 1 6 A 4 S...

Страница 393: ...ge line regulation on page B 7 table Check DC voltage load regulation This procedure uses the same test setup as the previous procedure see Check DC voltage setting accuracy without remote sense on pa...

Страница 394: ...on page B 7 table 12 Enter the largest of the three values calculated in step 11 in the Largest column in the DC voltage load regulation on page B 7 table Check DC overvoltage protection This procedur...

Страница 395: ...e output voltage and repeat step 5 through step 7 10 Set the OVP threshold to 50 of full scale output voltage and repeat step 5 through step 7 11 Set the OVP threshold to 75 of full scale output volta...

Страница 396: ...ows Set to constant voltage Set to the specified voltage for your DUT see DC current accuracy on page B 9 3 Set the DUT to 0 of the full scale output current 4 Set the DUT to 25 of the full scale outp...

Страница 397: ...es 2280 has the following ranges to verify 10 A 1 A 100 mA and 10 mA range Follow the procedures described below to check the current readback accuracy on 10 A and 1 A range For other ranges refer to...

Страница 398: ...32 1 6 6 1 A 0 0 1 0 5 1 2280S 60 3 10 A 0 0 6 3 3 2 1 A 0 0 1 0 5 1 5 Turn the DUT output on 6 Enter the voltmeter reading R1 R2 in the DC current readback accuracy on page B 10 table 7 Enter the DU...

Страница 399: ...ther ranges refer to Check DC current readback accuracy 10 A and 1 A ranges on page B 31 Set up the equipment as shown in the following figure Figure 109 Current readback accuracy on 100 mA and 10 mA...

Страница 400: ...cy on page B 10 table 7 Enter the DUT current readout in the DC current readback accuracy on page B 10 table under the current readout column 8 Calculate the difference of the two measurements taken i...

Страница 401: ...on DC Power Supply Reference Manual Appendix B Verification 077085503 March 2019 B 35 Check DC current line regulation Set up the equipment as shown in the following figure Figure 110 Series 2280 curr...

Страница 402: ...llows Set to constant voltage Set to the specified voltage for your device under test DUT see DC current line regulation on page B 13 4 Set the device under test DUT to 0 of the full scale output volt...

Страница 403: ...range to autorange Calculate the amperes instead of volts by multiplying the voltmeter reading result by 1 R 2 Set the electronic load as follows Set to constant voltage Set to the minimum test volta...

Страница 404: ...c load as follows Set to constant voltage CV mode 3 Set the device under test DUT to 100 of the full scale output voltage 4 Set the overcurrent protection OCP threshold to 10 of full scale output curr...

Страница 405: ...t DUT into your local line power from the mains 2 Plug the test oscilloscope into the same mains outlet as the DUT Some AC power sources create large amounts of high frequency noise on the power line...

Страница 406: ...cilloscope as follows 1 mV division 1 M input resistance 20 MHz bandwidth limit AC coupled Autotrigger 1 ms div Set to measure Vp p and VRMS 6 Set the DUT to the 100 full scale output voltage 7 Set th...

Страница 407: ...t fully reject Noise directly on the mains is typically better controlled Use the same mains outlet for both the DUT and test oscilloscope to avoid ground loops which may cause noise 3 Power on the DU...

Страница 408: ...personnel only Do not attempt these procedures unless you are qualified to do so Some of these procedures may expose you to hazardous voltages that if contacted could cause personal injury or death Us...

Страница 409: ...ified by the manufacturer Line power The Series 2280 requires a line voltage of 100 V 120 V 220 V or 240 V and a line frequency of 50 Hz or 60 Hz Before powering up the instrument properly set the 100...

Страница 410: ...imeter 7 digits 90 day 5 C uncertainties see the following table See NOTE below Electronic load Constant current CC 0 001 A to 6 A Constant voltage CV 0 3 V to 60 V See NOTE below Resistor R Load 300...

Страница 411: ...se the following procedure to prepare your shunts Step 1 Verify the 5 05 shunt Step 2 Verify the 0 05 shunt Step 1 You can use 5 and 0 05 precision shunt resistors in series instead of the 5 05 shunt...

Страница 412: ...sing the following formula R0 05 V0 05 Rtotal Vtotal You need to connect the shunt with the power supply electronic load and digital multimeter For details see the following figures After you have mad...

Страница 413: ...ion on communicating with the instrument The calibration instructions for the Series 2280 include the following procedures Voltage calibration Low current calibration on the 10 mA and 100 mA ranges Hi...

Страница 414: ...to the Series 2280 For the DMM specifications see Required equipment on page C 3 Figure 115 Voltage calibration connections When you are using a binding post on the front panel to make a calibration...

Страница 415: ...n connections For current calibration the following equipment is required Digital multimeter Precision shunt resistors Electronic load or resistor You can use either an electronic load or a resistor t...

Страница 416: ...Series 2280 Precision DC Power Supply Reference Manual Appendix C Calibration and adjustment 077085503 March 2019 C 9 Figure 117 High current calibration connection using an electronic load...

Страница 417: ...hour before performing the calibration 2 Press the MENU key 3 In the System Information menu select Calibrate The keypad is displayed 4 Enter the calibration password and select OK on the keypad The d...

Страница 418: ...ing table Steps Maximum voltage Minimum voltage 1 1 15 V 0 05 V 2 58 25 V 54 25 V Step 1 1 Enter the measured result from the DMM 2 After entering the data the waiting window is displayed You need to...

Страница 419: ...teps Maximum voltage Minimum voltage 3 15 150 mV 0 V 4 1 515 V 0 02 V For Model 2280S 60 3 the expected values are shown in the following table Steps Maximum voltage Minimum voltage 3 15 150 mV 0 V 4...

Страница 420: ...the details on saving see Saving calibration constants from the front panel on page C 15 If you want to continue the calibration press the Next soft key High current calibration Connect the instrumen...

Страница 421: ...load as shown in the following table Model Shunt Electronic load Resistor load 2280S 32 6 0 05 Constant current mode 1 5 V 0 06 A 5 2280S 60 3 0 05 Constant current mode 1 5 V 0 03 A 20 2 Enter the ex...

Страница 422: ...window is displayed Step 8 1 Before starting this calibration step configure the shunt and load electronic load or resistor load as shown in the following table Model Shunt Electronic load Resistor lo...

Страница 423: ...ielded IEEE 488 cable such as Keithley Instruments Model 7007 Use a standard LAN crossover cable to connect to the ethernet port Use a USB cable to connect to the USB port 2 Turn on the Series 2280 an...

Страница 424: ...sages and error event codes For calibration error messages and codes refer to Error summary on page 8 3 For the Model 2280S 32 6 the expected value is shown in the following table Steps Maximum voltag...

Страница 425: ...istor For details see Current calibration connections on page C 8 You need to perform the following steps to finish the low current calibration Steps 3 and 4 Current calibration on the 10 mA and 100 m...

Страница 426: ...on PROTected STEP3 DATA voltage resistance 4 Send the following command to query the operation status OPC After all of the operations are completed the instrument returns 1 Step 4 1 Before calibration...

Страница 427: ...ed You can send SYST ERR to query any error messages and error event codes For calibration error messages and codes refer to Error summary on page 8 3 For Model 2280S 32 6 the expected values are show...

Страница 428: ...tage resistance 4 The instrument begins to take internal measurements This will take a few seconds To query the operation status send the command OPC After all of the operations are completed the inst...

Страница 429: ...bration PROTected STEP7 DATA voltage resistance 4 Send the following command to query the operation status OPC After all of the operations are completed the instrument returns 1 Step 8 1 Before calibr...

Страница 430: ...7 The following calibration constants are saved Voltage calibration constants Current calibration constants for the 10 mA and 100 mA ranges Step 8 Saves all of the calibration constants You can also c...

Страница 431: ...change the calibration password from the front panel 1 Press the MENU key 2 Under System select Settings 3 Select the button next to System Password and press ENTER The System Password screen is disp...

Страница 432: ...113 Step2 V DAC full scale DMM reading out of range 7 1 294 0 1294 Step 2 114 Step2 V ADC full scale collected data error 8 1 500e 3 V 6 000e 3 V Step 5 122 Step5 I ADC 10A zero DMM reading out of ra...

Страница 433: ...ep 2 114 Step2 V ADC full scale collected data error 8 0 003 V 0 0112 V Step 5 122 Step5 I ADC 10A zero DMM reading out of range 9 8 571e 3 1 714e 2 Step 5 124 Step5 I ADC 10A zero collected data erro...

Страница 434: ...s occurred and what event caused it As you work with the status model remember that the end result applies to the Status Byte Register All the status register sets and queues flow into the Status Byte...

Страница 435: ...ionable Instrument Summary Event Register is shown in the diagram in Questionable registers on page D 3 The relationship between Operation Event Register Operation Instrument Event Register and Operat...

Страница 436: ...Series 2280 Precision DC Power Supply Reference Manual Appendix D Status model 077085503 March 2019 D 3 Figure 119 Series 2280 status model diagram...

Страница 437: ...Appendix D Status model Series 2280 Precision DC Power Supply Reference Manual D 4 077085503 March 2019 Figure 120 Questionable registers diagram Figure 121 Operation registers diagram...

Страница 438: ...ogram an enable register bit to 1 if the bits in the corresponding registers are set 1 the AND condition occurs You must program all bits in an enable register at the same time This means that you nee...

Страница 439: ...e status model can be cleared using commands or by instrument actions When a registered is cleared the bits in the register are set to 0 The event log and all registers are cleared when instrument pow...

Страница 440: ...nt needs attention or that some event has occurred When the controller receives an SRQ the controller can interrupt existing tasks to perform tasks that address the request for service Status Byte Reg...

Страница 441: ...ror available EAV An error is present in the error queue warning and information messages do not affect this bit 3 8 Questionable summary bit QSB An enabled questionable event 4 16 Message available M...

Страница 442: ...r cleared by using the SRE common command To read the Service Request Enable Register use the SRE query The Service Request Enable Register clears when instrument power is cycled or a parameter value...

Страница 443: ...new commands 1 2 Request control RQC Not used NA 2 4 Query error QYE An attempt was made to read data from an empty output queue 3 8 Device error DDE A device error has been detected 4 16 Execution e...

Страница 444: ...trument GET error The instrument received a Group Execute Trigger GET inside a program message Operation Event Register The Operation Event Register records the unexpected operation of the power suppl...

Страница 445: ...er If bit 1 of the Operation Instrument Event Register is set and bit 1 of Operation Instrument Event Enable Register is enabled bit 13 ISUM of the Operation Event Register is set Figure 126 Series 22...

Страница 446: ...ates the following has occurred 0 1 Calibration Cal The instrument is performing a calibration 1 through 3 Not used Not used NA 4 16 Measurement Meas The instrument is performing a measurement 5 32 Tr...

Страница 447: ...t Register are described in the following figure and table Figure 128 Series 2280 Questionable Event Register Bit Decimal value Bit name When set indicates the following has occurred 0 through 12 Not...

Страница 448: ...Instrument Event Register is set and bit 1 of Questionable Instrument Event Enable Register is enabled bit 13 ISUM of the Questionable Event Register is set See the following figure and table below i...

Страница 449: ...0 Questionable Instrument Summary Event Register Bit Decimal value Bit name When set indicates the following has occurred 0 1 CC The output is in constant current mode 1 2 CV The output is in constant...

Страница 450: ...gister are described in the following figure and table below it Figure 131 Series 2280 Measurement Event Register Bit Decimal value Bit name When set indicates the following has occurred 0 through 12...

Страница 451: ...Instrument Event Register is set and bit 1 of Measurement Instrument Event Enable Register is enabled bit 13 ISUM of the Measurement Event Register is set See the following figure and table below it...

Страница 452: ...the following figure and table Figure 133 Series 2280 Measurement Instrument Summary Event Register Bit Decimal value Bit name When set indicates the following has occurred 0 1 ROF Reading overflow 1...

Страница 453: ...the output summary of the register will set to 1 The commands to program and read the event enable registers are described in STATus subsystem on page 7 94 Condition registers The Series 2280 has the...

Страница 454: ...essage 350 Queue Overflow will occupy the last memory location On power up the error queue is empty When empty the message 0 No Error is placed in the queue Messages in the error queue are preceded by...

Страница 455: ...xamples illustrate how to generate an SRQ using the status model SRQ when reading buffer becomes full This example shows you how to generate an SRQ when the Series 2280 reading buffer is full This is...

Страница 456: ...nd the power supply has returned to the idle state After configuring the status model this code will configure and run the trigger model When the trigger model completes the instrument will generate a...

Страница 457: ...e names are the property of Keithley Instruments All other trademarks and trade names are the property of their respective companies Keithley Instruments Corporate Headquarters 28775 Aurora Road Cleve...

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