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Keithley 2260B-30-36 User Manual

Other manuals for 2260B-30-36: Adjustment Manual, Quick Start Manual
Manual is about: 2260B Series, 360W and 720W Multi-Range Programmable DC Power Supplies

Summary of 2260B-30-36

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    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.

  • Page 2: User Manual

    Series 2260b 360w and 720w multi-range programmable dc power supplies user manual iso-9001 certified manufacturer.

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    This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual 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, ...

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    Table of contents 1 table of contents safety instructions .................................................... 3 getting started ........................................................... 7 2260b series overview ........................... 8 appearance .......................................... 12 ...

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    2260b series user manual 2 2260b specifications .......................... 139 2260b dimensions ............................. 145 declaration of conformity .................. 147 index ............................................................................ 148.

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    Safety instructions 3 s afety instructions this chapter contains important safety instructions that you must follow during operation and storage. Read the following before any operation to insure your safety and to keep the instrument in the best possible condition. Safety symbols these safety symbo...

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    2260b series user manual 4 do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased. Safety guidelines general guideline caution do not place any heavy object on the instrument. Avoid s...

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    Safety instructions 5 cleaning the instrument disconnect the power cord before cleaning. Use a soft cloth dampened in a solution of mild detergent and water. Do not spray any liquid. Do not use chemicals containing harsh material such as benzene, toluene, xylene, and acetone. Operation environment l...

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    2260b series user manual 6 power cord for the united kingdom when using the instrument in the united kingdom, make sure the power cord meets the following safety instructions. Note: this lead/appliance must only be wired by competent persons warning: this appliance must be earthed important: the wir...

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    Getting started 7 g etting started this chapter describes the power supply in a nutshell, including its main features and front / 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 saf...

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    2260b series user manual 8 2260b series overview series lineup the 2260b series consists of 4 models, divided into 2 different model types covering 2 power capacities: 360w models and 720w models. Model name type voltage rating current rating power 2260b-30-36 360w models 0~30v 0~36a 360w 2260b-80-1...

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    Getting started 9 main features performance high performance/power power efficient switching type power supply low impact on load devices fast transient recovery time of 1ms fast output response time features ovp, ocp and otp protection adjustable voltage and current slew rates user adjustable bleed...

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    2260b series user manual 10 accessories standard accessories part number description 196353000 test leads x1 174627900 usb cable 020312300 basic accessories kit: m4 terminal screws and washers x2, m8 terminal bolts, nuts and washers x2, air filter x1, analog control protection dummy x1, analog contr...

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    Getting started 11 package contents check the contents 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 calibration of traceable certificate packing check list.

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    2260b 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 (360w).

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    Getting started 13 function keys the function keys along with the output key will light up when a key is active. The function key is used to configure the power supply. Set the overcurrent or overvoltage protection levels. Sets the current and voltage limits. Used to run customized test sequence for...

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    2260b series user manual 14 voltage knob sets the voltage. Current 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 at a service center. Power switch ...

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    Getting started 15 rear panel 2260b-80-27, 2260b-30-72 (720w) 2260b-80-13, 2260b-30-36 (360w).

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    2260b series user manual 16 analog control connector standard 26 pin mil connector (omron xg4 idc plug). The analog control connector is used to monitor current and voltage output, machine status (ovp, ocp, otp etc.), and for analog control of the current and voltage output. Use an omron xg5 idc soc...

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    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).

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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...

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    Getting started 19 output) exceeds the rated power output, the effective output is actually limited to the power limit of the unit. In this case the output current and voltage then depend purely on the load value. Below is a comparison of the operating areas of each power supply. 2260b 80v series op...

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    2260b series user manual 20 cc and cv mode cc and cv mode description when the power supply is operating in constant current mode (cc) a constant current will be supplied to the load. When in constant current mode the voltage output can vary, while the current remains constant. When the load resista...

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    Getting started 21 conversely the power 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 i set and the voltage output is less than v set . R l= r c r l c v set i set cv cc v i r l >r c crossover point c v set i se...

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    2260b series user manual 22 slew rate theory the 2260b has selectable slew rates for cc and cv mode. This gives the 2260b power supply the ability to limit the current/voltage draw of the power supply. Slew rate settings are divided into high speed priority and slew rate priority. High speed priorit...

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    Getting started 23 may remain charged on the filter capacitors for some time and be potentially hazardous. In addition, bleed resistors also allow for smoother voltage regulation of the power supply as the bleed resistor acts as a minimum voltage load. The bleed resistance can be turned on or off us...

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    2260b series user manual 24 alarms the 2260b power supplies have a number of protection features. When one of the protection alarms are set, the alm icon on the display will be lit. For details on how to set the protection modes, please see page 43. Ovp overvoltage protection (ovp) prevents a high v...

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    Getting started 25 considerations the following situations should be taken into consideration when using the power supply. Inrush current when the power supply switch is first turned on, an inrush current is generated. Ensure there is enough power available for the power supply when first turned on,...

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    2260b series user manual 26 current limit level measured ammeter current reverse current: regenerative load when the power supply is connected to a regenerative load such as a transformer or inverter, reverse current will feed back to the power supply. The 2260b power supply cannot absorb reverse cu...

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    Getting started 27 reverse current: accumulative energy. When the power supply is connected to a load such as a battery, reverse current may flow back to the power supply. To prevent damage to the power supply, use a reverse-current- protection diode in series between the power supply and load. Powe...

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    2260b series user manual 28 grounding the output terminals of the 2260b power supplies are isolated with respect to the protective grounding terminal. The insulation capacity of the load, the load cables and other connected devices must be taken into consideration when connected to the protective gr...

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    Getting started 29 grounded output terminal if the positive or negative terminal is connected to the protective ground terminal, the insulation capacity needed for the load and load cables is greatly reduced. The insulation capacity only needs to be greater than the maximum output voltage of the pow...

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    2260b series user manual 30 o peration set up .......................................................................... 31 filter installation ...................................................................................................... 31 power up ............................................

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    Operation 31 set up filter installation background the 2260b has a small 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 open area under the control p...

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    2260b series user manual 32 power up steps 1. Connect the power cord to the rear panel socket. 2. Press the power key. If used for the first time, the default settings will appear on the display, otherwise the 2260b recovers the state right before the power was last turned off. For default configura...

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    Operation 33 wire gauge considerations background before connecting the output terminals to a load, the wire gauge 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 out...

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    2260b series user manual 34 output terminals background before connecting the output terminals to the load, first consider whether voltage sense will be used, the gauge of the cable wiring and the withstand voltage of the cables and load. The output terminals can be connected to load cables using m4...

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    Operation 35 5. Choose a suitable crimp for the terminals. 6. If using voltage sense, remove the sense terminal joining plates and connect sensing wires to the load(s). Page 53 7. Connect the positive load cable to the positive output terminal and the negative cable to the negative output terminal. ...

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    2260b series user manual 36 using the output terminal cover steps 1. Remove the screw holding the top cover to the bottom 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 t...

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    Operation 37 removal reverse the procedure 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 models. Rack mount example 360w models x6 units.

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    2260b series user manual 38 how to use the instrument background the 2260b power supplies use a novel method of configuring parameter values only using the voltage or current knobs. The knobs are used to quickly edit parameter values at 0.01, 0.1 or 1 unit steps at a time. When the user manual says ...

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    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..

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    2260b series user manual 40 reset to factory default settings background the f-88 configuration setting allows the 2260b to be reset back to the factory default settings. See page 136 for the default factory settings. Steps 1. Press the function key. The function key will light up. 2. The display sh...

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    Operation 41 view system version and build date background the f-89 configuration setting allows you to view the 2260b version number, build date, keyboard version, analog-control version and kernel build. Steps 1. Press the function key. The function key will light up. 2. The display should show f-...

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    2260b series user manual 42 e -xx: kernel build on-month. F-xx: kernel build on-day. 5. Press the function key again to exit. The function key light will turn off. Example main program version: v01.09, 2011/08-01 0-01: main program version 1-09: main program version 2-20: main program build on-year....

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    Operation 43 basic operation this section describes the basic operations required to operate the power supply. Setting ovp/ocp → from page 43 cv mode → from page 45 cc mode → from page 48 display modes → page 51 panel lock → page 52 remote sensing → from page 53 before operating the power supply, pl...

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    2260b series user manual 44 before setting the ovp or ocp level: ensure the load is not connected. Ensure the output is set to off. Steps 1. Press the ovp/ocp key. The ovp/ocp key lights up. 2. The ovp setting will be displayed on the top and the ocp setting (or off) will be displayed on the bottom....

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    Operation 45 clear ovp/ocp protection the ovp or ocp protection can be cleared after it has been tripped by holding the ovp/ocp button for 2 seconds. (only applicable when the power switch trip setting is disabled [f-95 = 1]) (hold) set to cv mode when setting the power supply to constant voltage mo...

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    2260b series user manual 46 4. Use the current knob to set the f- 03 setting. Set f-03 to 0 (cv high speed priority) or 2 (cv slew rate priority). Current f-03 0 = cv high speed priority 2 = cv slew rate priority 5. Press the voltage knob to save the configuration setting. Conf will be displayed whe...

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    Operation 47 9. Use the voltage knob to set the voltage. Push in the knob to highlight a digit. Turn the knob to the desired digit to adjust. Rotate the knob to the desired voltage. Voltage note notice the set key becomes illuminated when setting the current or voltage. If the voltage or current kno...

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    2260b series user manual 48 set to cc mode when setting the power supply to constant current mode, a voltage limit must also be set to determine the crossover point. When the voltage exceeds the crossover point, the mode switches to cv mode. For details about cc operation, see page 18. Cc and cv mod...

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    Operation 49 f-03 1 = cc high speed priority 3 = cc slew rate priority 5. Press the voltage knob to save the configuration setting. Conf will be displayed when successful. 6. If cc slew rate priority was chosen as the operating mode, set f-06 (rising current slew rate) and f-07 (falling current slew...

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    2260b series user manual 50 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. 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 w...

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    Operation 51 display modes the 2260b power supplies allow you to view the output in three different modes: voltage and current, voltage and power or current and power. Steps 1. Press the pwr/dspl key. The pwr dspl key lights up. 2. The display changes to voltage and power (v/w). 3. To switch between...

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    2260b series user manual 52 panel lock the panel lock feature prevents settings from being changed accidentally. When activated, the lock/local key will become illuminated and all keys and knobs except the lock/local key and output key (if active) will be disabled. If the instrument is remotely cont...

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    Operation 53 remote sense remote sense is used to compensate for the voltage drop seen across load cables due to the resistance inherent in the load cables. The remote sense terminals are connected to the load terminals to determine the voltage drop across the load cables. Remote sense can compensat...

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    2260b series user manual 54 parallel 2260b units 1. Connect the sense+ terminals to the positive potential of the load. Connect the sense- terminals to the negative potential of the load. Output sense sense power supply #2 output output sense sense power supply #1 output load input input page 34 2. ...

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    Operation 55 power supply #2 a b c d load input input output sense sense power supply #1 output output sense sense output page 34 2. Operate the instrument as normal. See the serial operation chapter for details. Page 65 wire shielding and load line impedance to help to minimize the oscillation due ...

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    2260b series user manual 56 parallel / series operation this section describes the basic operations required to operate the power supply in series or parallel. Operating the 2260b power supplies in parallel increases the total power output of the power supply units. When used in series, the total ou...

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    Operation 57 master-slave parallel overview background when connecting the 2260b power supplies in parallel, up to 3 units can be used 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 be...

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    2260b series user manual 58 ovp/ ocp the master unit can shut down slave units when ovp/ocp is tripped on the master unit (if the slave connector is wired for shut down on alarm). Ovp/ocp can be independently tripped on each slave unit, however the shutdown of the power or output of the unit is disa...

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    Operation 59 slew rate only the master unit’s current or voltage slew rate settings apply. The settable current slew rate is double or triple that of a single unit, depending on the number of units that are used in parallel. For example: the 2260b-30-36 has a maximum settable current slew rate of 72...

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    2260b series user manual 60 master-slave parallel connection master-slave connector the analog control connector is used for both serial and parallel connections. The way the connector is configured determines the behavior of the master and slave units. For the complete connector pin assignment, see...

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    Operation 61 master with 1 slave unit: 2 12 13 15 17 20 21 24 20 12 17 15 3 23 output on status 21 master unit alm status 20 status com 17 feedback 15 current_sum_1 13 shutdown 12 out on/off cont 24 slave unit 1 12 shutdown 20 alm status 15 feedback 3 current sum out 17 status com 2 d com 11 1 i mon...

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    2260b series user manual 62 5. Connect the master and slave unit in parallel as shown above. 6. Reattach the terminal covers. Page 36 note ensure the load cables have sufficient current capacity. Page 33 re-attach the protection dummy plug when not in use. Master-slave parallel operation master-slav...

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    Operation 63 note configuration settings can be checked for both the master and slave units by pressing the function key and checking f-93. Only the master ovp and ocp level is used for over voltage and current protection. Slave ovp and ocp level is disregarded. Otp works independently for each unit...

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    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..

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    Operation 65 master-slave series overview background when connecting 2260b power supplies in series, up to 2 units can be used in series and all units must be of the same model. When the units are used in series, a number of precautions and limitations apply. Please read this overview before operati...

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    2260b series user manual 66 remote monitoring voltage monitoring (vmon) and current monitoring (imon) are only supported on the master unit. The vmon voltage represents the total voltage of the all the serialized units. Remote sense please see the remote sense chapter for details, page 53. External ...

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    Operation 67 output voltage/ output current model single unit 2 units 2260b-30-36 30v 60v 36a 36a 2260b-80-13 80v 160v 13.5 13.5a 2260b-30-72 30v 60v 72a 72a 2260b-80-27 80v 160v 27a 27a master-slave series connection master-slave connector the analog control connector is used for both serial and pa...

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    2260b series user manual 68 series output connection master unit load + - slave unit steps 1. Ensure the power is off on both power supplies. 2. Choose a master and slave unit. 3. Connect the analog connectors for the master and slave unit as shown above. 4. Remove the output terminal cover and the ...

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    Operation 69 2. For each unit, hold the function key while turning the power on to enter the power on configuration settings. 3. Configure f-93 (master/slave) setting for each master/slave unit. Page 96 unit f-93 master (local or series operation) 0 slave unit (series) 4 4. Cycle the power on the un...

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    2260b series user manual 70 2. Operation of all units is controlled via the master unit. Operation of the master unit is the same 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 u...

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    Operation 71 test sequence this section describes how to use the utility function to run, load and save test sequences for automated testing. The utility function is useful if you want to perform a number of tests automatically. The 2260b utility function can store ten test sequences in memory. Test...

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    2260b series user manual 72 test sequence file format a test sequence file describes a sequence of steps that are output when the test sequence is run. The test sequence file is created on a pc in a *.Csv (comma separated values) format. In a csv file each field is delimited by a comma. Each file sh...

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    Operation 73 cycle step start: determines the starting step for the cycle repeat field. Range: 1~999. The cycle step start field must be less than the cycle step end field. Cycle step end: determines the ending step for the cycle repeat field. Range: 2~1000. The cycle step end field must be greater ...

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    2260b series user manual 74 example: file: t001.Csv in the example below there are 10 steps in total. As designated by the 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),volt...

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    Operation 75 test sequence settings test sequence run runs the chosen test sequence from the internal memory. A test sequence must first be loaded into the internal memory before it can be run. See the utility function “test sequence load”, below. The test sequence will run as soon as the utility fu...

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    2260b series user manual 76 setting the test sequence settings steps the test sequence settings (t-01~t-04) are set with the utility key. 1. Press the utility key. The utility key will light up. 2. The display will show t-01 on the top and the memory no. For t-01 on the bottom. Test sequence setting...

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    Operation 77 exit press the utility key again to exit the test sequence settings. The utility key light will turn off. Load test sequence from usb overview before a test sequence can be run, it must first be loaded into a one of the 10 memory save slots. Before loading a test sequence into memory: e...

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    2260b series user manual 78 note if the usb drive is not recognized, check to see that the function settings for f-20 = 1 (page 90). If not, reinsert the usb flash drive. 3. Configure t-02 (test sequnce load) to 1~10 (save memory slot) page 76 t-02 range 1~10 (t001 ~t010) 4. The test sequence will n...

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    Operation 79 note error messages: if you try to run a test sequence from an empty memory location “err 003” will be displayed on the display. Note when a test sequence starts to run, there is no way to abort the test sequence. Pressing the output key has no effect. If you wish to stop a test early, ...

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    2260b series user manual 80 2. Turn on the power. Ms (mass storage) will be displayed on the screen after a few seconds if the usb drive is recognized. Note if the usb drive is not recognized, check to see that the function settings for f-20 = 1 (page 90). If not, reinsert the usb flash drive. 3. Co...

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    Operation 81 steps 1. Select t-04 (test sequence remove) and choose which test sequence to remove from the internal memory. Page 76 t-04 range 1~10 2. The test sequence will be removed from the internal memory slot. Note error messages: if you try to remove a test sequence from an empty memory locat...

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    2260b series user manual 82 -8 _seq_err__parameter_data_to_long -10 _seq_err__cycle_start_greater_than_cycle _end -11 _seq_err__cycle_times_error -12 _seq_err__cycle_times_over_range -13 _seq_err__no_cycle_times -14 _seq_err__cycle_start_error -15 _seq_err__cycle_start_over_range -16 _seq_err__no_cy...

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    Configuration 83 c onfiguration configuration ............................................................... 84 configuration table ................................................................................................ 84 normal function settings .............................................

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    2260b series user manual 84 configuration configuration of the 2260b power supplies is divided into five different configuration settings: normal function, usb/gpib, lan, power on configuration, calibration settings and system settings. Power on configuration differs from the other settings in that ...

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    Configuration 85 internal resistance setting f-08 0.000 Ω~0.833Ω (2260b-30-36) 0.000 Ω~0.417Ω (2260b-30-72) 0.000 Ω~5.926Ω (2260b-80-13) 0.000 Ω~2.963Ω (2260b-80-27) bleeder circuit control f-09 0 = off, 1 = on buzzer on/off control f-10 0 = on, 1 = off usb/gpib settings front panel usb state f-20 0...

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    2260b series user manual 86 web password active f-60 0 = disable, 1 = enable web setting password f-61 0000~9999 system settings factory set value f-88 0 = disable 1 = return to factory settings show version f-89 0, 1 = version 2, 3 = build year 4, 5 = build month/day 6, 7 = keyboard cpld version 8,...

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    Configuration 87 normal function settings output on delay time delays turning the output on for a designated amount of time. The delay indicator will light when the delay time is not 0. Note: the output on delay time setting has a maximum deviation (error) of 20ms. The output on delay time setting i...

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    2260b series user manual 88 v-i mode selects high speed priority or slew rate priority for cv or cc mode. The voltage or current slew rate can only be edited if cc/cv slew rate priority is selected. The isr indicator will be lit for cc slew rate priority and the vsr indicator will be lit for cv slew...

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    Configuration 89 rising current slew rate sets the rising current slew rate. Only applicable if v-i mode is set to cc slew rate priority. F-06 0.01a/s~72.00a/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) falling current slew rate sets the...

  • Page 93

    2260b series user manual 90 usb/gpib settings front panel usb state displays the front panel usb-a port state. This setting is not configurable. 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...

  • Page 94

    Configuration 91 lan settings mac address- 1~6 displays the mac address 1~6. This setting is not configurable. F-30~f-35 0x00~0xff lan turns ethernet on or off. F-36 0 = disable, 1 = enable dhcp turns dhcp on or off. F-37 0 = disable, 1 = enable ip address-1~4 sets the default ip address. Ip address...

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    2260b series user manual 92 web password active turns a web password on/off. F-60 0 = disable, 1 = enable web password sets the web password. F-61 0000 ~ 9999 system settings factory set value returns the 2260b to the factory default settings. See page 136 for a list of the default settings. F-88 0 ...

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    Configuration 93 power on configuration settings cv control sets the constant voltage (cv) control mode between local and external voltage/resistance control. For external voltage control, see page 101 (external voltage control of voltage output) and page 106 (external resistance control of voltage ...

  • Page 97

    2260b series user manual 94 f-93 0 = master/local 1 = master/parallel1 2 = master/parallel2 3 = slave/parallel 4 = slave/series external out logic sets the external logic as active high or low. F-94 0= high on, 1 = low on power switch trip turns the power off if enabled when the protection settings ...

  • Page 98

    Configuration 95 steps 1. Press the function key. The function key will light up. 2. The display will 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. Voltage range f-00~ f-61, f-88~f-89 4. Use the current knob to set the ...

  • Page 99

    2260b series user manual 96 setting power on configuration settings background the power on configuration settings can only be changed during power up to prevent the configuration settings being inadvertently changed. Ensure the load is not connected. Ensure the power supply is off. Steps 1. Hold th...

  • Page 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.

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    2260b series user manual 98 a nalog control the analog control chapter describes how to control the voltage or current output using an external voltage or resistance, monitor the voltage or current output as well as remotely turning off the output or shutting down the power supply. Analog remote con...

  • Page 102

    Analog control 99 analog remote control overview the 2260b power supply series have a number of analog control options. The analog control connectors are used to control output voltage and current using external voltage or resistance. The power supply output and power switch can also be controlled u...

  • Page 103

    2260b series user manual 100 d com 2 connected to the (–s) sense- terminal when remote sense is used. Connected to the negative output terminal when remote sense is not used. Current sum out 3 current sum output signal when used in parallel mode. Ext-v cv cont 4 external voltage control of the volta...

  • Page 104

    Analog control 101 a com 16 analog signal common. Connected to the sense- terminal when remote sense is used. Connected to the negative output terminal when remote sense is not used. Status com 17 common for status signals 18, 19, 20, 21 and 22. Cv status 18 turns on when cv mode is active. (photo c...

  • Page 105

    2260b series user manual 102 connection when connecting the external voltage source to the mil connectors, use shielded or twisted paired wiring. Power supply ext-v analog connector ＋ － 16 4 output terminal 2 core shielded wire or twisted pair pin16 → ext-v (-) pin4 → ext-v (+) wire shield → negativ...

  • Page 106

    Analog control 103 2. Set the f-90 power on configuration setting to 1 (cv control – ext voltage). Page 96 be sure to cycle the power after the power on configuration has been set. 3. Press the function key and confirm the new configuration settings (f- 90=1). 4. Press the output key. The voltage ca...

  • Page 107

    2260b series user manual 104 external voltage control of current output background external voltage control of the current output is accomplished using the mil-26 connector on the rear panel. A voltage of 0~10v is used to control the full scale current of the instrument, where: output current = full...

  • Page 108

    Analog control 105 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 power supply. This would short the output. Power supply ext-v analog connector ＋ － 16 5 output...

  • Page 109

    2260b series user manual 106 note the input impedance for external voltage control is 10k Ω. Use a stable voltage supply for the external voltage control. Note cv and cc slew rate priority are disabled for v-i mode (f-03) when using external voltage control. See the normal function settings on page ...

  • Page 110

    Analog control 107 note the ext-r configuration is recommended for safety reasons. In the event that the cables become accidentaly disconnected, the voltage output will drop to zero. Under similar circumstances using ext-r , an unexpected high voltage would be output. If swtiches are used to switch ...

  • Page 111

    2260b series user manual 108 4. Press the output key. The voltage can now be controlled with the external resistance. Note ensure the resistor(s) and cables used exceed the isolation voltage of the power supply. For example: insulation tubes with a withstand voltage higher than the power supply can ...

  • Page 112

    Analog control 109 note the ext-r configuration is recommended for safety reasons. In the event that the cables become accidentaly disconnected, the current output will drop to zero. Under similar circumstances using ext-r , an unexpected high current would be output. If swtiches are used to switch ...

  • Page 113

    2260b series user manual 110 3. Press the output key. The current can now be controlled with the external resistance. Note ensure the resistor(s) and cables used exceed the isolation voltage of the power supply. For example: insulation tubes with a withstand voltage higher than the power supply can ...

  • Page 114

    Analog control 111 connection power supply switch analog connector 24 2 output terminal 2 core shielded wire or twisted pair pin2 → switch pin24 → switch wire shield → negative (-) output terminal steps 1. Connect the external switch according to the connection diagrams above. Set f-94 (external out...

  • Page 115

    2260b series user manual 112 note when using a switch over long distances, please use a switch relay to extend the line from the coil side of the relay. Switch relay line extention analog connector output terminal 24 2 if a single switch control is to be used for multiple units, please isolate each ...

  • Page 116

    Analog control 113 external control of shutdown background the output of the power supplies can be configured to shut down via an external switch. The ability to externally shut down the power supply must first be enabled in the power on configuration settings. The voltage across pins 2 and 12 are i...

  • Page 117

    2260b series user manual 114 note when using a switch over long distances, please use a switch relay to extend the line from the coil side of the relay. Switch relay line extention analog connector output terminal 12 2 if a single switch control is to be used for multiple units, please isolate each ...

  • Page 118

    Analog control 115 remote monitoring the 2260b power supplies have remote monitoring support for current and voltage output. They also support monitoring of operation and alarm status. External monitoring of output voltage and current → from page 115 external monitoring of operation mode and alarm s...

  • Page 119

    2260b series user manual 116 vmon connection power supply dmm analog connector 16 10 output terminal v mon 0 → 10v pin16 → neg (-) pin10 → pos (+) imon connection power supply dmm analog connector 16 11 output terminal i mon 0 → 10v pin16 → neg (-) pin11 → pos (+) note the output impedance of the vo...

  • Page 120

    Analog control 117 external operation and status monitoring background the mil 26 pin connector can also be used to monitor the status operation and alarm status of the instrument. The pins are isolated from the power supply internal circuitry by photo couplers. Status com (pin 17) is a photo couple...

  • Page 121

    2260b series user manual 118 timing diagrams below are 4 example timing diagrams covering a number fo scenarios. Note that pins 18~22 are all active 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 ...

  • Page 122

    Analog control 119 cc mode: output turned on the diagram below shows the timing 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 output is turned of...

  • Page 123

    2260b series user manual 120 c ommunication interface this chapter describes basic configuration of ieee488.2 based remote control. For a command list, refer to the programming manual. Interface configuration ............................................... 121 usb remote interface .....................

  • Page 124

    Communication interface 121 interface configuration usb remote interface usb configuration pc side connector type a, host 2260b side connector rear panel type b, slave speed 1.1/2.0 (full speed/high speed) usb class cdc (communications device class) steps 1. Connect the usb cable to the rear panel u...

  • Page 125

    2260b series user manual 122 from type b plug on power supply type a plug from computer gpib to usb adapter 4. Turn the 2260b on. 5. Press the function key to enter 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...

  • Page 126

    Communication interface 123 configure ethernet connection the ethernet interface can be configured for a number of different applications. Ethernet can be configured for basic remote control or monitoring using a web server or it can be configured as a socket server. The 2260b series supports both d...

  • Page 127

    2260b series user manual 124 2. Press the function key to enter the normal configuration settings. Page 94 set the following lan settings: f-36 = 1 enable lan f-37 = 1 turn dhcp to enable f-59 = 1 turn the web server on note it may be necessary to cycle the power or refresh the web browser to connec...

  • Page 128

    Communication interface 125 f-45 = 128 subnet mask part 3 of 4 f-46 = 0 subnet mask part 4 of 4 f-43 = 172 gateway part 1 of 4 f-44 = 16 gateway part 2 of 4 f-45 = 21 gateway part 3 of 4 f-46 = 101 gateway part 4 of 4 f-57 = 1 enable sockets note the socket function is only available for firmware ve...

  • Page 129

    2260b series user manual 126 ^j can be used as the terminal character when entering the queries/commands from a terminal application. Note for further details, please see the programming manual. Web server remote control function check functionality check enter the ip address of the power supply in ...

  • Page 130

    Communication interface 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 tcp/ip resource… 2 3.

  • Page 131

    2260b series 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 button. 5 6 4.

  • Page 132

    Communication interface 129 7. Next configure 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 icon now. 10. Press open visa test panel. 9 1...

  • Page 133

    2260b series user manual 130 11. Under 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 there. 13. Click the execute button. 12 13.

  • Page 134

    Communication interface 131 14. In the 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 details, please see the programming manual..

  • Page 135

    2260b series user manual 132 m aintenance the 2260b power supply filters should be replaced on a periodic schedule to maintain performance and specification characteristics. Replacing the dust filter ...................................................................................... 133.

  • Page 136

    Maintenance 133 replacing the dust filter the dust filter should be replaced at least 2 times a year. Not replacing the filter on a regular basis will 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 bo...

  • Page 137

    2260b series user manual 134 f aq • the power supply won’t let me change the mode (cv mode ↔ cc mode). • the ovp voltage is triggered earlier than expected. • can i combine more than 1 cable together for the output wiring? • the accuracy does not match the specification. The power supply won’t let m...

  • Page 138

    Faq 135 the accuracy does not match the specification. Make sure the device is powered on 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 specifications for...

  • Page 139

    2260b series user manual 136 a ppendix 2260b default settings the following default settings are the factory configuration settings for the power supply. For details on how to return to the factory default settings, see page 40. Initial settings default setting output off lock 0 (disabled) voltage 0...

  • Page 140

    Appendix 137 falling current slew rate f-07 72.00a/s (2260b-30-36) 144.0a/s (2260b-30-72) 27.00a/s (2260b-80-13) 54.00a/s (2260b-80-27) internal resistance setting f-08 0.000 Ω bleeder circuit control f-09 1 = on buzzer on/off control f-10 1 = on usb/gpib setting rear panel usb mode f-22 2 = usb cdc...

  • Page 141

    2260b series user manual 138 error messages & messages the following error messages or messages may appear on the 2260b screen during operation. Error messages description err 001 usb mass storage is not present err 002 no (such)file in usb mass storage err 003 empty memory location err 004 file acc...

  • Page 142

    Appendix 139 2260b specifications the specifications apply when the 2260b is powered on for at least 30 minutes. 2260b-30-36, 2260b-80-13 model 2260b-30-36 2260b-80-13 dc output ratings: voltage 30v 80v current 36a 13.5a power 360w 360w load effect: voltage 0.05% of rating + 5mv current 0.1% of rati...

  • Page 143

    2260b series user manual 140 series and parallel capability parallel operation up to 3 units including the master unit series operation up to 2 units including the master unit temperature coefficient: (after a 30 minute warm-up) voltage 100ppm/˚c current 200ppm/˚c protection function ovp setting ran...

  • Page 144

    Appendix 141 ac input: nominal input 100 - 240 vac; 50/60hz input input range 85vac ~ 265vac frequency 47hz ~ 63hz hold up time ＞20ms (at rated load) input current 5a@100vac / 2.5a@200vac power (max) 500va power factor (typ) 0.98 efficiency (typ) 75% 78% inrush current ＜25apeak general weight approx...

  • Page 145

    2260b series user manual 142 2260b-30-72, 2260b-80-27 model 2260b-30-72 2260b-80-27 dc output ratings: voltage 30v 80v current 72a 27a power 720w 720w load effect: voltage 0.05% of rating + 5mv current 0.1% of rating + 5ma source effect: (change from 85-132 vac input or 170-265 vac input) voltage 0....

  • Page 146

    Appendix 143 protection function ovp setting range 10% to 110% of rated output voltage ovp accuracy ±(rated output voltage x 2%) ocp setting range 10% to 110% of rated output current ocp accuracy ±(rated output current x 2%) otp activated by elevated internal temperatures analog programming and moni...

  • Page 147

    2260b series user manual 144 general weight approx. 5kg dimensions w×h×d = 142×124×350 mm withstand voltage between input 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 v...

  • Page 148

    Appendix 145 2260b dimensions 360w models 2260b-80-13/2260b-30-36 (mm) 33.8 18 12 .6 12 3. 8 268 31 333.3 332.5 46 70.8 12 3. 8 37 .8 10 .9 10 .9 47.5 14.5 30.5 39.5 19 .8 39 .7 16 .3 Ø 8 m4.

  • Page 149

    2260b series user manual 146 720w models 2260b-80-27/2260b-30-72 (mm) 18 268 31 12 .6 12 3. 8 33.8 21 333.3 332.5 70 .9 21 278 28 21 18 99.6 141.8 12 3. 8 7. 8 16 .3 37 .8 19 .8 10 .9 39 .7 10 .9 14.5 30.5 39.5 47.5.

  • Page 150

    Appendix 147 declaration of conformity we declare that the below mentioned product type of product: multi-range dc power supply model number: 2260b-30-36, 2260b-80-13, 2260b-30-72, 2260b-80-27 are herewith confirmed to comply with the requirements set out in the council directive on the approximatio...

  • Page 151

    2260b series user manual 148 i ndex accessories ................................. 10 alarm description ..................................... 24 analog connector pin assignment .............................. 99 analog control output control ............................. 110 overview ....................

  • Page 152

    Index 149 marketing contact .......................................... 135 messages ................................... 138 model differences ........................ 8 ocp level .................................... 43 operating area description ....... 18 operation considerations ......... 25 float...

  • Page 153

    Specifications are subject to change without notice. All keithley trademarks and trade names are the property of keithley instruments, inc. All other trademarks and trade names are the property of their respective companies. Keithley instruments, inc. Corporate headquarters • 28775 aurora road • cle...