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2260B Series User Manual 

18

 

Theory of Operation 

The theory of operation chapter describes the basic principles of 
operation, protection modes and important considerations that 
must be taken into account before use.  

Operating Area Description 

 

Background 
 

 

 

The 2260B power supplies are regulated DC 
power supplies with a high voltage and current 
output. These operate in CC (Constant voltage) 
or CV(Constant voltage) mode within a wide 
operating range limited only by the output 
power. 

The operating area of each power supply is 
determined by the rated output power as well 
as the voltage and current rating. For example, 
the operating area and rated power output for 
the 2260B-30-36 is shown below. 

Voltage

Current

30

360W rated power 

10

12

36

Operating Area

 

When the power supply is configured so that 
the total output (current x voltage output) is 
less than the rated power output, the power 
supply functions as a typical constant current, 
constant voltage power supply.  

If however, the power supply is configured 
such that the total output (current x voltage 

Содержание 2260B-30-72

Страница 1: ...2260B Series www keithley com 360W and 720W Multi Range Programmable DC Power Supplies User Manual Rev A March 2014 A Greater Measure of Confidence A Tektronix Company...

Страница 2: ...Series 2260B 360W and 720W Multi Range Programmable DC Power Supplies USER MANUAL ISO 9001 CERTIFIED MANUFACTURER...

Страница 3: ...ual may be photocopied reproduced or translated to another language without prior written consent The information in this manual was correct at the time of printing However we continue to improve our...

Страница 4: ...et Up 31 Basic Operation 43 Parallel Series Operation 56 Test Sequence 71 CONFIGURATION 83 Configuration 84 ANALOG CONTROL 98 Analog Remote Control Overview 99 Remote Monitoring 115 COMMUNICATION INTE...

Страница 5: ...2260B Series User Manual 2 2260B Specifications 139 2260B Dimensions 145 Declaration of Conformity 147 INDEX 148...

Страница 6: ...in the best possible condition Safety Symbols These safety symbols may appear in this manual or on the instrument WARNING Warning Identifies conditions or practices that could result in injury or los...

Страница 7: ...less you are qualified Measurement categories EN 61010 1 2001 specifies the measurement categories and their requirements as follows This instrument falls under category II Measurement category IV is...

Страница 8: ...y Pollution degree 1 No pollution or only dry non conductive pollution occurs The pollution has no influence Pollution degree 2 Normally only non conductive pollution occurs Occasionally however a tem...

Страница 9: ...onnected to the terminal which is marked with the letter N or coloured Blue or Black The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown...

Страница 10: ...rear panel introduction After going through the overview please read the theory of operation to become familiar with the operating modes protection modes and other safety considerations 2260B Series O...

Страница 11: ...del name Type Voltage rating Current rating Power 2260B 30 36 360W models 0 30V 0 36A 360W 2260B 80 13 360W models 0 80V 0 13 5A 360W 2260B 30 72 720W models 0 30V 0 72A 720W 2260B 80 27 720W models 0...

Страница 12: ...nd OTP protection Adjustable voltage and current slew rates User adjustable bleeder control to quickly dissipate the power after shutdown to safe levels Extensive remote monitoring and control options...

Страница 13: ...ontrol lock lever x1 Output terminal cover top bottom 063453400 CD R 2260B Manuals Drivers 071305501 Quick Start Guide PWRKI A _ Power cord 071305700 China RoHS Declaration 001163200 Calibration of Tr...

Страница 14: ...ontents before using the 2260B Opening the box Contents single unit Main unit Test leads x1 USB cable Basic Accessories Kit CD R Manual Quick Start Guide Power cord x1 China RoHS Declaration Calibrati...

Страница 15: ...Series User Manual 12 Appearance 2260B Front Panel 2260B 80 27 2260B 30 72 720W Current knob Output key Power switch Voltage knob USB A port Display Cover panel Function keys 2260B 80 13 2260B 30 36...

Страница 16: ...d voltage limits Used to run customized Test sequence for testing Locks or unlocks the panel keys to prevent accidentally changing panel settings Toggles the display from viewing V A V W A W Display I...

Страница 17: ...ent Knob Sets the current Output Press to turn on the output The Output key will light up when the output is active USB The USB A port is used to update the firmware The firmware can only be updated a...

Страница 18: ...GETTING STARTED 15 Rear Panel 2260B 80 27 2260B 30 72 720W 2260B 80 13 2260B 30 36 360W...

Страница 19: ...OCP OTP etc and for analog control of the current and voltage output Use an OMRON XG5 IDC socket as the mating socket Output Terminals Positive and negative output terminals Chassis ground Sense and S...

Страница 20: ...GETTING STARTED 17 Line Voltage Input 360W models 2260B 30 36 2260B 80 13 720W models 2260B 30 72 2260B 80 27 Voltage Input 100 240 VAC Line frequency 50Hz 60 Hz Automatically switchable...

Страница 21: ...wide operating range limited only by the output power The operating area of each power supply is determined by the rated output power as well as the voltage and current rating For example the operatin...

Страница 22: ...son of the operating areas of each power supply 2260B 80V Series Operating Area 0 5 10 15 20 25 30 0 20 40 60 80 100 Volt Cur Po Current A Voltage V 26 6 4 5 9 0 13 5 80 720W models 360W models 30 45...

Страница 23: ...le the current will vary as the load varies At the point that the load resistance is too low to maintain a constant voltage the power supply will switch to CC mode and maintain the set current limit T...

Страница 24: ...er supply will operate in CC mode when the load resistance is less than the critical resistance In CC mode the current output is equal to ISET and the voltage output is less than VSET RL RC RL RC VSET...

Страница 25: ...tings for CC or CV mode Slew Rate Priority mode allows for user adjustable slew rates for CC or CV mode The rising and falling slew rate can be set independently Slew rate Disabled Slew rate Enabled B...

Страница 26: ...esistance off as the bleed resistor can discharge the connected battery when the unit is off Internal Resistance Background On the 2260B the internal resistance of the power supply can be user defined...

Страница 27: ...gh voltage from damaging the load OCP Overcurrent protection prevents high current from damaging the load OTP Overtemperature protection protects the instrument from overheating Power Switch Trip When...

Страница 28: ...quickly can cause the inrush current limiting circuit to fail as well as reduce the working life of the input fuse and power switch Pulsed or Peaked loads When the load has current peaks or is pulsed...

Страница 29: ...The 2260B power supply cannot absorb reverse current For loads that create reverse current connect a resistor in parallel to the power supply to bypass the reverse current This description only appli...

Страница 30: ...etween the power supply and load Power supply Load Diode CAUTION Ensure the reverse withstand voltage of the diode is able to withstand 2 times the rated output voltage of the power supply and the for...

Страница 31: ...nected to the protective ground or when floating Floating As the output terminals are floating the load and all load cables must have an insulation capacity that is greater than the isolation voltage...

Страница 32: ...bles is greatly reduced The insulation capacity only needs to be greater than the maximum output voltage of the power supply with respect to ground Load Ext V Ext R Analog connector Insulation capacit...

Страница 33: ...to Factory Default Settings 40 View System Version and Build Date 41 Basic Operation 43 Setting OVP OCP Levels 43 Set to CV Mode 45 Set to CC Mode 48 Display Modes 51 Panel Lock 52 Remote Sense 53 Par...

Страница 34: ...mall filter that must first be inserted under the control panel before operation The small filter must be inserted for all model types 360W models 720W models Steps 1 Insert the small filter in the op...

Страница 35: ...e default settings will appear on the display otherwise The 2260B recovers the state right before the power was last turned OFF For default configuration settings see page 136 CAUTION The power supply...

Страница 36: ...of the cables should be considered It is essential that the current capacity of the load cables is adequate The rating of the cables must equal or exceed the maximum current rated output of the instru...

Страница 37: ...d screws or M8 sized bolts WARNING Dangerous voltages Ensure that the power to the instrument is disabled before handling the power supply output terminals Failing to do so may lead to electric shock...

Страница 38: ...the positive load cable to the positive output terminal and the negative cable to the negative output terminal 8 Reattach the output terminal cover Page 36 Connection without sense wiring Using M4 sc...

Страница 39: ...om cover 2 Line up the bottom cover with the notches in the output terminals 3 Place the top terminal cover over the bottom cover Details 2 3 1 4 Use your thumb to slide the terminal covers shut as sh...

Страница 40: ...e to remove the terminal covers Using the Rack Mount Kit Background The 2260B series has an optional Rack Mount Kit that can be used to hold 6x 360W models 3x 360W models or a combination of all model...

Страница 41: ...ays to set a value or parameter use the steps below Example Use the Voltage knob to set a voltage of 10 05 volts 6 Repeatedly press the Voltage knob until the last digit is highlighted This will allow...

Страница 42: ...OPERATION 39 V A V A Note Notice the Set key becomes illuminated when setting the current or voltage If the Voltage or Current knobs are unresponsive press the Set key first...

Страница 43: ...Function key will light up 2 The display should show F 01 on the top and the configuration setting for F 01 on the bottom 3 Rotate the Voltage knob to change the F setting to F 88 Factory Set Value Vo...

Страница 44: ...on the bottom 3 Rotate the Voltage knob to change the F setting to F 89 Show Version 4 Rotate the Current knob to view the version and build date for the various items Current F 89 0 XX Main Program V...

Страница 45: ...ersion 2 20 Main Program Build On Year 3 11 Main Program Build On Year 4 08 Main Program Build On Month 5 01 Main Program Build On Day Example Keyboard CPLD Version 0x030c 6 03 Keyboard CPLD Version 7...

Страница 46: ...ase see the Getting Started chapter page 7 Setting OVP OCP Levels The OVP level has a selectable range of 10 to 110 of the rated output voltage The OCP level has a selectable range 10 110 of the rated...

Страница 47: ...on the bottom V A OVP Setting OCP Setting OVP Level 3 Use the Voltage knob to set the OVP level Voltage Range 10 110 of rated output voltage OCP Level 4 Use the Current knob to set the OCP level Curre...

Страница 48: ...o CC mode For details about CV operation see page 18 CC and CV mode have two selectable slew rates High Speed Priority and Slew Rate Priority High Speed Priority will use the fastest slew rate for the...

Страница 49: ...lew Rate Priority was chosen as the operating mode in steps 3 5 set F 04 Rising Voltage Slew Rate and F 05 Falling Voltage Slew Rate and save F 04 F 05 0 1V s 60V s 2260B 30 XX 0 1V s 160V s 2260B 80...

Страница 50: ...ey becomes illuminated when setting the current or voltage If the Voltage or Current knobs are unresponsive press the Set key first 10 Press the Output key The Output key becomes illuminated C V W V A...

Страница 51: ...will use the fastest slew rate for the instrument while Slew Rate Priority will use a user configured slew rate Background Before setting the power supply to CC mode ensure The output is off The load...

Страница 52: ...0A s 2260B 30 72 0 01A s 27 00A s 2260B 80 13 0 01A s 54 00A s 2260B 80 27 7 Press the Function key again to exit the configuration settings The function key light will turn off 8 Use the Voltage kno...

Страница 53: ...rent knobs are unresponsive press the Set key first 10 Press the Output key The Output key becomes illuminated W V A C C W 20 40 60 80 100 CC and the Power Bar will become illuminated bottom left cent...

Страница 54: ...ng A W and V W simply press the corresponding Voltage or Current knob For example when in A W mode press the Voltage knob to display V W Conversely when in V W mode press the Current knob to display A...

Страница 55: ...ept the Lock Local key and Output key if active will be disabled If the instrument is remotely controlled via the USB LAN interface the panel lock is automatically enabled Activate the panel lock Pres...

Страница 56: ...the output is off before connecting any sense cables Use sense cables with a voltage rating exceeding the isolation voltage of the power supply Never connect sensing cables when the output is on Elect...

Страница 57: ...1 Output Load Input Input Page 34 2 Operate the instrument as normal See the Parallel Operation chapter for details Page 57 Serial 2260B Units 1 a Connect the 1st Sense terminal to the positive poten...

Страница 58: ...e the Serial Operation chapter for details Page 65 Wire Shielding and Load line impedance To help to minimize the oscillation due to the inductance and capacitance of the load cables use an electrolyt...

Страница 59: ...in series or parallel depends on the model and the mode Series Mode 2 units maximum Parallel Mode 3 units maximum To use the power supplies in series or parallel units must be used in a Master Slave...

Страница 60: ...in parallel and all units must be of the same model When the units are used in parallel a number of precautions and limitations apply Please read this overview before operating the power supplies in...

Страница 61: ...the power or output of the unit is disabled Only the alarm will be enabled Remote monitoring Voltage monitoring VMON and current monitoring IMON are only supported on the master unit The IMON current...

Страница 62: ...nce Only the master unit s internal resistance settings apply For 2 units in parallel the internal resistance is actually half of the setting value For 3 units in parallel the internal resistance is a...

Страница 63: ...in parallel connect the analog connectors on the master and slave units as shown in the diagrams below Master with 2 slave units 12 13 14 15 17 20 21 24 20 12 17 15 3 1715 3 12 24 20 11 1 2 1 OUTPUT...

Страница 64: ...TUS 15 FEEDBACK 3 CURRENT SUM OUT 17 STATUS COM 2 D COM 11 1 I MON CURRENT SHARE 11 1 Parallel Output Connection Load Master unit Slave unit 2 Slave unit 1 Steps 1 Ensure the power is off on all power...

Страница 65: ...tion Before using the power supplies in parallel the master and slave units need to be configured Steps 1 Configure the OVP and OCP settings for the master unit Page 43 2 For each unit hold the Functi...

Страница 66: ...ation Only operate the power supplies in parallel if the units are configured correctly 1 Turn on the master and slave units The slave unit s will show a blank display Master unit Slave units 2 Operat...

Страница 67: ...2260B Series User Manual 64 Note The panel controls are disabled on slave units including the output key On slave units only the Function key can be used to view the current settings...

Страница 68: ...rating the power supplies in series Master Load Ext V Ext R Slave VMON IMON Limitations Display Only the master unit will display the current Master and slave units display the voltage The total volta...

Страница 69: ...e Resistance controlled remote control can only be used with the master unit Slew Rate The voltage slew rate is actually double that of the setting slew rate I e A voltage slew rate setting of 60 00V...

Страница 70: ...ions The way the connector is configured determines the behavior of the master and slave units For the connector pin assignment see page 99 Analog Connector Connection To operate the power supplies in...

Страница 71: ...otection dummy plug from the analog control connector Page 36 5 Connect the master and slave unit in series as shown above 6 Reattach the terminal cover Page 36 Note Ensure load cables have sufficient...

Страница 72: ...4 4 Cycle the power on the units reset the power Note Configuration settings can be checked for both the master and slave units by pressing the Function key Master Slave Operation Only operate the pow...

Страница 73: ...as for a single unit Please see the basic operation chapter for details Page 40 3 Press the Output key to begin CAUTION Only operate the power supplies in series if using units of the same model numb...

Страница 74: ...m a number of tests automatically The 2260B utility function can store ten test sequences in memory Test Sequence File Format from page 72 Test Sequence Settings from page 75 Setting the Test Sequence...

Страница 75: ...ded into see page 77 Below is an example of a simple test file created in a spreadsheet Cycle Step Start Cycle Step End Cycle Repeat Step number Time sec Voltage V Current A Cycle Header Step Header T...

Страница 76: ...rom this location Current A Header This field contains the Current A header text Required Do not remove or alter from this location Line 3 Step Number The Step Number field numbers each step in the te...

Страница 77: ...Cycle fields steps 3 5 are repeated twice In total the steps will run as follows Steps 3 5 are repeated twice Step 1 2 3 4 5 3 4 5 6 7 8 9 10 Cycle 2 3 5 Step Time sec Voltage V Current A 1 1 MIN MIN...

Страница 78: ...run as soon as the utility function is started T 01 1 10 Test sequence Load Loads a test sequence from the USB drive to the designated save slot in memory A test sequence must first be loaded into in...

Страница 79: ...splay will show T 01 on the top and the memory no for T 01 on the bottom Test Sequence Setting Memory number 3 Rotate the voltage knob to select below items Voltage Test sequence Run Test sequence Loa...

Страница 80: ...e is placed in the root directory Ensure the file name number corresponds to the memory number that you wish to save to For example A test sequence file named t001 csv can only be saved to memory numb...

Страница 81: ...ble in the memory slot the test sequence was saved to Note Error messages If you load a file that is not present on the USB drive Err 002 will be displayed on the display Run Test Sequence Overview A...

Страница 82: ...wish to stop a test early turn the power off Export Test Sequence to USB Overview The Export test sequence function saves a test sequence file to the root directory of a USB flash drive Test Sequence...

Страница 83: ...If not reinsert the USB flash drive 3 Configure T 03 Test Sequence Export from 0 10 internal memory slot Page 76 T 03 range 1 10 4 The test sequence file will now be copied to the USB flash drive Note...

Страница 84: ...play Test Sequence Error Messages Overview The following error code numbers may appear on the display when trying to run a test sequence Use the error code numbers determine the cause of the error For...

Страница 85: ...0 _SEQ_ERR__STEP_DATA_ERROR 21 _SEQ_ERR__STEP_DATA_OVER_RANGE 22 _SEQ_ERR__NO_STEP_DATA 30 _SEQ_ERR__POINT_DATA_ERROR 31 _SEQ_ERR__START_POINT_GREATER_THAN_END_ POINT 32 _SEQ_ERR__START_POINT_REPEAT 3...

Страница 86: ...NFIGURATION 83 CONFIGURATION Configuration 84 Configuration Table 84 Normal Function Settings 87 USB GPIB Settings 90 LAN Settings 91 System Settings 92 Power On Configuration Settings 93 Calibration...

Страница 87: ...to F 61 and F 88 to F 89 Configuration Table Please use the configuration settings listed below when applying the configuration settings Normal Function Settings Setting Setting Range Output ON delay...

Страница 88: ...0 0x00 0xFF MAC Address 2 F 31 0x00 0xFF MAC Address 3 F 32 0x00 0xFF MAC Address 4 F 33 0x00 0xFF MAC Address 5 F 34 0x00 0xFF MAC Address 6 F 35 0x00 0xFF LAN F 36 0 Disable 1 Enable DHCP F 37 0 Dis...

Страница 89: ...ocal 1 External voltage control 2 External resistance control Ext R 10k Vo max 3 External resistance control Ext R 10k 0 CC Control F 91 0 Panel control local 1 External voltage control 2 External res...

Страница 90: ...of 20ms The Output ON Delay Time setting is disabled when the output is set to external control DLY F 01 0 00s 99 99s Output OFF Delay Time Delays turning the output off for a designated amount of ti...

Страница 91: ...when voltage current output is set to external control ISR CC Slew Rate priority VSR CV Slew Rate priority F 03 0 CV high speed priority 1 CC high speed priority 2 CV slew rate priority 3 CC slew rat...

Страница 92: ...00A s 2260B 30 36 0 1A s 144 0A s 2260B 30 72 0 01A s 27 00A s 2260B 80 13 0 01A s 54 00A s 2260B 80 27 Internal Resistance Settings Sets the internal resistance of the power supply F 08 0 000 0 833...

Страница 93: ...figurable F 20 0 Absent 1 Mass Storage Rear Panel USB State Displays the rear panel USB B port state This setting is not configurable F 21 0 Absent 2 USB CDC 3 GPIB USB adapter Rear Panel USB Mode Set...

Страница 94: ...F 41 F 42 0 255 0 255 0 255 0 255 Subnet Mask 1 4 Sets the subnet mask The subnet mask is split into four parts F 43 F 44 F 45 F 46 0 255 0 255 0 255 0 255 Gateway 1 4 Sets the gateway address The gat...

Страница 95: ...actory default settings See page 136 for a list of the default settings F 88 0 Disable 1 Return to factory default settings Show Version Displays the 2260B version number build date keyboard version a...

Страница 96: ...R 10k 0 CC Control Sets the constant current CC control mode between local and external voltage resistance control For details on external voltage control see page 104 External Voltage Control of Cur...

Страница 97: ...s used to access the local mode calibration or other special functions The password used determines which function is accessed Please see your distributor for details F 00 0000 9999 Setting Normal Fun...

Страница 98: ...3 Rotate the Voltage knob to change the F setting Voltage Range F 00 F 61 F 88 F 89 4 Use the Current knob to set the parameter for the chosen F setting Current 5 Press the Voltage knob to save the co...

Страница 99: ...ing inadvertently changed Ensure the load is not connected Ensure the power supply is off Steps 1 Hold the Function key while turning the power on 2 The display will show F 90 on the top and the confi...

Страница 100: ...CONFIGURATION 97 5 Press the Voltage knob to save the configuration setting ConF will be displayed when successful Exit Cycle the power to save and exit the configuration settings Voltage...

Страница 101: ...wn the power supply Analog Remote Control Overview 99 Analog Control Connector Overview 99 External Voltage Control of Voltage Output 101 External Voltage Control of Current Output 104 External Resist...

Страница 102: ...resistance control of voltage output from page 106 External resistance control of current output from page 108 External control of output from page 110 External control of the power switch from page...

Страница 103: ...l scale voltage output 0 100 of the instrument EXT R CC CONT PIN1 8 External resistance control of the current output A resistance of 0k 10k is used to control the full scale current output 0 100 of t...

Страница 104: ...output OUTPUT ON STATUS 21 Turns on when the output has been turned on photo coupled open collector output POWER OFF STATUS 22 Turns on when the power switch is turned off N C 23 Not connected OUT ON...

Страница 105: ...ative output terminal Connection alt shielding If the wire shield needs to be grounded at the voltage source EXT V then the shield cannot also be grounded at the negative terminal output of the 2260B...

Страница 106: ...ltage can now be controlled with the External voltage Note The input impedance for external voltage control is 10k Use a stable voltage supply for the external voltage control Note CV and CC Slew Rate...

Страница 107: ...e of 0 10V is used to control the full scale current of the instrument where Output current full scale current external voltage 10 Connection When connecting the external voltage source to the MIL con...

Страница 108: ...rminal 2 core shielded wire or twisted pair Pin16 EXT V Pin5 EXT V Wire shield EXT V ground GND Steps 1 Connect the external voltage according to the connection diagrams above 2 Set the F 91 power on...

Страница 109: ...re than 10 5 volts are input into the external voltage input External Resistance Control of Voltage Output Background External resistance control of the voltage output is accomplished using the MIL 26...

Страница 110: ...open circuits Use short circuit or continous resistance switches Connection Power supply EXT R Analog connector 7 6 Output Terminal 2 core shielded wire or twisted pair Pin6 EXT R Pin7 EXT R Wire shi...

Страница 111: ...led for V I mode F 03 when using external resistance control See the normal function settings on page 87 External Resistance Control of Current Output Background External resistance control of the cur...

Страница 112: ...open circuits Use short circuit or continous resistance switches Connection Power supply EXT R Analog connector 8 9 Output Terminal 2 core shielded wire or twisted pair Pin9 EXT R Pin8 EXT R Wire shi...

Страница 113: ...and CC Slew Rate Priority are disabled for V I mode F 03 when using external resistance control See the normal function settings on page 87 External Control of Output Background The output can be turn...

Страница 114: ...al Steps 1 Connect the external switch according to the connection diagrams above Set F 94 External output logic in the power on configuration settings to 0 High On or 1 Low On Be sure to cycle the po...

Страница 115: ...ing Ensure the cables used and the switch exceed the isolation voltage of the power supply For example insulation tubes with a withstand voltage higher than the power supply can be used Note Messages...

Страница 116: ...500uA with 10k pull up resistor Connection Power supply Switch Analog connector 12 2 Output Terminal 2 core shielded wire or twisted pair Pin2 Switch Pin12 Switch Wire shield negative output terminal...

Страница 117: ...ne extention Analog connector Output Terminal 12 2 If a single switch control is to be used for multiple units please isolate each instrument This can be achieved by using a relay Warning Ensure the c...

Страница 118: ...monitoring of operation mode and alarm status from page 117 External Voltage and Current Monitoring Background The MIL 26 pin connector is used to monitor the current IMON or voltage VMON output An o...

Страница 119: ...tput Terminal I MON 0 10V Pin16 Neg Pin11 Pos Note The output impedance of the voltage VMON and current IMON monitor pins is 1k Maximum current is 10mA The monitor outputs are strictly DC and should n...

Страница 120: ...coupler emitter output while pins 18 22 are photo coupler collector outputs A maximum of 30V and 8mA can be applied to each pin Name and Pin Description STATUS COM 17 Common photo coupler emitter for...

Страница 121: ...e low CV MODE Output turned on The diagram below shows the timing diagram when the output is turned on when the 2260B is set to CV mode CV status H L CC status H L Output status H L CV MODE Output tur...

Страница 122: ...diagram when the output is turned on when the 2260B is set to CC mode CV status H L CC status H L Output status H L CC MODE Output turned off The diagram below shows the output status lines when the...

Страница 123: ...control For a command list refer to the programming manual Interface Configuration 121 USB Remote Interface 121 Configure GPIB Interface 121 Configure Ethernet Connection 123 Web Server Configuration...

Страница 124: ...he rear panel USB B port 2 Change the Rear panel USB F 22 setting to USB CDC 2 Page 94 Configure GPIB Interface To use GPIB the optional GPIB to USB 2260B GPIB USB adapter must be used Only one GPIB a...

Страница 125: ...nter the Normal configuration settings Page 94 Set the following GPIB settings F 22 1 Set the rear panel USB port to GPIB USB F 23 0 30 Set the GPIB address 0 30 GPIB constraints Maximum 15 devices al...

Страница 126: ...network settings can be manually configured Ethernet configuration Parameters For details on how to configure the Ethernet settings please see the configuration chapter on page 91 MAC Address display...

Страница 127: ...server The following configuration settings will manually assign the 2260B an IP address and enable the socket server By default the socket server port number is 2268 and cannot be configured 1 Connec...

Страница 128: ...Control Function Check Functionality check Invoke a terminal application such as MTTTY Multi Threaded TTY To check the COM port No see the Device Manager in the PC For WinXP Control panel System Hard...

Страница 129: ...http XXX XXX XXX XXX The web browser interface appears Note For further details please see the programming manual Socket Server Function Check Background To test the socket server functionality Natio...

Страница 130: ...ACE 127 press Start All Programs National Instruments Measurement Automation 2 From the Configuration panel access My System Devices and Interfaces Network Devices 3 Press Add New Network Device Visa...

Страница 131: ...ries User Manual 128 4 Select Manual Entry of Raw Socket from the popup window 5 Enter the IP address and the port number of the 2260B The port number is fixed at 2268 6 Double click the Validate butt...

Страница 132: ...the Alias name of the 2260B connection In this example the Alias is PS_DC1 8 Click finish 7 8 9 The IP address of the 2260B will now appear under Network Devices in the configuration panel Select this...

Страница 133: ...r the Template Property Node tabs set Termination Char Enable from the Attribute Name list to VI_TRUE 11 12 Under the Basic I O Write tabs Enter the IDN query into the Buffer if it is not already ther...

Страница 134: ...Basic I O Read tabs the return parameter for the IDN query should be returned to the buffer area XXXXXXX AAA AAA T1 12 20111013 Where XXXXXXX Manufacturer AAA AAA Model number 14 Note For further deta...

Страница 135: ...260B Series User Manual 132 MAINTENANCE The 2260B power supply filters should be replaced on a periodic schedule to maintain performance and specification characteristics Replacing the Dust Filter 133...

Страница 136: ...reduce performance and may cause the unit to overheat Front panel filter all models 1 Turn the instrument off 2 Pull the filter out from the bottom of the front panel 3 Replace the filter with a new f...

Страница 137: ...to enter the Power On Configuration Mode See page 92 The OVP voltage is triggered earlier than expected When setting the OVP voltage take into account the voltage drop from the load cables As the OVP...

Страница 138: ...for at least 30 minutes This is necessary to stabilize the unit to match the specification Some specifications require the operating temperature to be stabilized at 23 C 5 C Please see the specificati...

Страница 139: ...bled Voltage 0V Current 0A OVP Maximum OCP Maximum Normal Function Settings Setting Default Setting Output ON delay time F 01 0 00s Output OFF delay time F 02 0 00s V I mode slew rate select F 03 0 CV...

Страница 140: ...el USB Mode F 22 2 USB CDC GPIB address F 23 8 LAN setting LAN F 36 1 Enable DHCP F 37 1 Enable Sockets active F 57 1 Enable Web Server active F 59 1 Enable Web password active F 60 1 Enable Web setti...

Страница 141: ...1 Keyboard CPLD error Err 902 Analog CPLD error Err 920 The ADC is over range for calibration Err 921 The DAC is over range for calibration Err 922 Point invalid for calibration Messages Description M...

Страница 142: ...ndwidth 20MHz Ripple Bandwidth 1MHz CV p p 60mV 60mV CV rms 7mV 7mV CC rms 72mA 27mA Programming accuracy at 23 C 5 C Voltage 0 1 10mV 0 1 10mV Current 0 1 30mA 0 1 10mA Measurement accuracy at 23 C 5...

Страница 143: ...Accuracy linearity 0 5 of rated Vout EXT V Control Io Accuracy linearity 1 of rated Iout EXT R Control Vo Accuracy linearity 1 5 of rated Vout EXT R Control Io Accuracy linearity 1 5 of rated Iout Vo...

Страница 144: ...75 78 Inrush Current 25Apeak General Weight Approx 3kg Dimensions W H D 71 124 350 mm Withstand Voltage Between input and chassis No abnormalities at 1500 Vac for 1 minute Between input and output No...

Страница 145: ...60mA 0 1 30mA Measurement accuracy at 23 C 5 C Voltage 0 1 10mV 0 1 10mV Current 0 1 60mA 0 1 30mA Load Transient Recovery Time time for output voltage to recover within 0 1 10mVof its rated output fo...

Страница 146: ...Front Panel Display Accuracy 4 digits at 23 C 5 C Voltage 0 1 2 count 0 1 2 count Current 0 1 7 count 0 1 4 count Environmental Conditions Operating temp 0 C to 50 C Storage temp 25 C to 70 C Operatin...

Страница 147: ...nput and chassis No abnormalities at 1500 Vac for 1 minute Between input and output No abnormalities at 3000 Vac for 1 minute Between output and chassis No abnormalities at 500 Vdc for 1 minute Insula...

Страница 148: ...APPENDIX 145 2260B Dimensions 360W models 2260B 80 13 2260B 30 36 mm 33 8 18 12 6 123 8 268 31 333 3 332 5 46 70 8 123 8 37 8 10 9 10 9 47 5 14 5 30 5 39 5 19 8 39 7 16 3 8 M4...

Страница 149: ...2260B Series User Manual 146 720W models 2260B 80 27 2260B 30 72 mm 18 268 31 12 6 123 8 33 8 21 333 3 332 5 70 9 21 278 28 21 18 99 6 141 8 123 8 7 8 16 3 37 8 19 8 10 9 39 7 10 9 14 5 30 5 39 5 47 5...

Страница 150: ...he following standards were applied EMC EN 61326 1 EN 61326 2 1 Electrical equipment for measurement control and laboratory use EMC requirements 2006 Conducted Radiated Emission EN 55011 2009 A1 2010...

Страница 151: ...mal function settings operation 94 overview 84 power on configuration operation96 power on configuration settings 93 System settings 92 table 84 test sequence settings 75 USB GPIB settings 90 utility...

Страница 152: ...Rear panel diagram 15 Remote control 120 interface configuration 121 Remote control function check125 Remote sense connection 55 operation 53 Series mode connection 67 Operation 68 overview 65 Service...

Страница 153: ...eithley Instruments Inc All other trademarks and trade names are the property of their respective companies Keithley Instruments Inc Corporate Headquarters 28775 Aurora Road Cleveland Ohio 44139 440 2...

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