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Fluke PM2811 User Manual

Programmable power supplies
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Programmable Power Supplies
I
®
PM2811-PM2812-PM2813
PM2831-PM2832
Programmable Power Supplies
Users Manual
4822 872 00824
January 1997, Rev. 3, 5/98
© 1997 Fluke Corporation. All rights reserved. Printed in the Netherlands.
All product names are trademarks of their respective companies.

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Summary of Contents for Fluke PM2811

  • Page 1 Programmable Power Supplies ® PM2811-PM2812-PM2813 PM2831-PM2832 Programmable Power Supplies Users Manual 4822 872 00824 January 1997, Rev. 3, 5/98 © 1997 Fluke Corporation. All rights reserved. Printed in the Netherlands. All product names are trademarks of their respective companies.
  • Page 2 Users Manual...
  • Page 3 Fluke authorized reseller, and does not apply to fuses, disposable batteries or to any product which, in Fluke's opinion, has been misused, altered, neglected or damaged by accident or abnormal conditions of operation or handling.
  • Page 4 Users Manual SERVICE CENTERS To locate an authorized service center, visit us on the World Wide Web: http://www.fluke.com or call Fluke using any of the phone numbers listed below: +1-800-443-5853 in U.S.A. and Canada +31-402-678-200 in Europe +1-425-356-5500 from other countries...

  • Page 5: Table Of Contents

    Programmable Power Supplies CONTENS Page OPERATOR SAFETY ........1-1 INTRODUCTION .
  • Page 6 Users Manual INSTALLATION INSTRUCTIONS ......3-1 INTRODUCTION ........3-1 INITIAL INSPECTION .
  • Page 7 Programmable Power Supplies USING YOUR PROGRAMMABLE POWER SUPPLY ..5-1 INTRODUCTION ........5-1 LOCAL OPERATION .
  • Page 8 Users Manual APPENDIX A ACCESSORIES ....... A-1 Supplied with the instrument ......A-1 Optional .
  • Page 9 Programmable Power Supplies Thank you for purchasing this FLUKE power supply. It has been designed and manufactured to the highest quality standards to give you many years of trouble- free use. The powerful operating features have been combined with an easy and logical operation so that the full power of this instrument can be used every day.
  • Page 10 If the contents are incomplete, or if there is damage to the instrument or its accessories, notify the FLUKE sales or service office nearest you to facilitate the repair or replacement of the instrument or accessories.
  • Page 11 Programmable Power Supplies INSIDE THIS MANUAL This operating manual has been aimed at the experienced user as well as the user new to Programmable Power Supplies. It will help the reader to use and operate the power supply manually (local operation) or from a PC via the GPIB (remote operation).
  • Page 12 VIII Users Manual...

  • Page 13: Operator Safety

    Operator Safety 1 - 1 1 OPERATOR SAFETY Read this page carefully before beginning to install and use the instrument. 1.1 INTRODUCTION The instrument described in this manual is designed to be used only by qualified personnel. WARNING: Servicing described in this manual is to be done only by qualified service personnel.

  • Page 14: Symbols

    1 - 2 Users Manual 1.4 SYMBOLS Symbol Meaning of symbol See explanation in manual Earth Conformité Européenne 1.5 IMPAIRED SAFETY Whenever it is likely that safety has been impaired, the instrument must be turned off and disconnected from line power. The matter should then be referred to qualified technicians.

  • Page 15: Introduction

    The power supplies can be used as bench-top instruments (stand-alone) via their keypads and displays. For local operation, refer to section 4.4 (getting started), section 5.4 (operating features) or the Reference Manual (operating references). Family overview Single Output System PM2811/xyz PM2812/xyz Dual Output System PM2813/xyz Triple Output System PM2831/xyz...
  • Page 16 ADDRESS 12 • readback information, e.g., an output voltage and current • status information, e.g., display of the REM text • error messages, e.g., the OVERCURRENT message Display Single front panel (PM2811 only) Display Single, dual and triple output front panel...
  • Page 17 9448 028 11011 110V 2.5AT/250V 155VA No.DM000599 220V 1.25AT/250V READY START IEEE488 240V STEP ST5825 Single rear panel (PM2811 only) OUTPUT 3 OUTPUT 1 OUTPUT 2 30V 10A 60W 30V 10A 60W 30V 10A 60W PHILIPS 230V PM2813/011 FUSES 50-60Hz 9448 028 13011 110V 6.3AM/250V...

  • Page 18: Basic Operation

    2 - 4 Users Manual 2.2 BASIC OPERATION The programmable power supplies offer a combination of programming capabilities and a variety of dc output power ratings that make them ideal for power systems applications. The +V and +S as well as the -V and -S terminals have been connected to each other at the factory.
  • Page 19 Introduction to your PPS 2 - 5 After power on, the programmable power supply performs a self-test. If the selftest is succesful, the STANDBY, OPERATE, or CALIBRATION mode will be entered. In the OPERATE mode, an output channel can be in the ENABLED or DISABLED state (only multiple output models).

  • Page 20: Local Operation

    2 - 6 Users Manual 2.2.1 Local operation Using the front panel keys, you can program an output channel voltage or current. On the front panel display you can read back the actual voltage and current of the selected output channel. Operating information about the instrument and the selected output channel, as well as output-specific error messages, are shown on the display in the following ways (see the following figure): •...

  • Page 21: Remote Operation

    Introduction to your PPS 2 - 7 2.2.2 Remote operation Via the General Purpose Interface Bus (GPIB), you can program your programmable power supply to receive input data and to send output data. An example of input data (listener) is that a voltage and current can be programmed directly to the selected output channel.
  • Page 22 2 - 8 Users Manual The programmable functions have been implemented via the GPIB by means of the following SCPI subsystems: DISPlay voltage SYSTem SOURce OUTPut output channel 1 CALibration INSTrument sense ABORt input MEASure channel 1 step INITiate input/output •...
  • Page 23 Introduction to your PPS 2 - 9 • ABORt This subsystem is used for stopping the step function of the power supply. • CALibration This subsystem is used for calibration of the instrument. Your power supply can be calibrated without removing the cover or removing the power supply from your rack measurement setup.

  • Page 24: Sense Modes

    2 - 10 Users Manual 2.2.3 Sense modes Each output channel has been provided with a set of four terminals. The inner terminals have been marked as - V(oltage) and + V(oltage), while the outer terminals have been marked as - S(ense) and + S(ense). Each output channel can be connected to a load in two different ways: •...
  • Page 25 Introduction to your PPS 2 - 11 Remote sensing load If the voltage drop across the +V and -V wires to the load is substantial, the voltage at the load will be less than the programmed value. To prevent the voltage at the load from being less than the programmed value, the sense wires must also be connected to the load (remote sensing).

  • Page 26: Advanced Operation

    2 - 12 Users Manual 2.3 ADVANCED OPERATION 2.3.1 Output channel interconnections Identical output channels can be connected in the following ways to increase the total output capability: • In series to increase the output voltage capability. Refer to section 5.6.2 "Serial connection of output channels"...

  • Page 27: Multiple Loads

    Introduction to your PPS 2 - 13 2.3.2 Multiple loads If more than one load is connected to an output channel, use separate wires to connect each load. This minimizes mutual coupling effects and takes full advantage of the power supply’s low output impedance. Each pair of wires should be as short as possible to reduce wire inductance and noise pickup to prevent the loads from mutually influencing each other, due to load fluctuations.

  • Page 29: Installation Instructions

    Inspect the contents of the shipment for completeness and note whether any damage has occurred during transport. If the contents are not complete, or if there is damage, inform your FLUKE Sales and Service Center so that repair or replacement of the instrument can be arranged.

  • Page 30: Installation

    The instrument is shipped from the factory with a power cord that has a plug appropriate for the country in which it is sold. If a different power plug or power cord is required, contact your Fluke Sales and Service Center. CAUTION: When an instrument is brought from a cold into a warm environment, condensation may cause a hazardous condition;...

  • Page 31: Electrical Installation

    (sticker) on the rear panel. NOTE : If the instrument must be wired to conform to local power, contact your FLUKE Sales and Service Center to have it modified. The power inlet module, located at the rear, is an integral power adapter and includes the power input socket, the holder for the two power fuses and the POWER ON/OFF (1/0) switch.

  • Page 32: Front Connection Unit

    The Front Connection Unit provides the interconnections between the rear and front terminals. The following programmable power supply types have a front connection unit: • single output model: PM2811/x5z • dual output model : PM2812/x5z • triple output model : PM2813/x5z •...
  • Page 33 Installation Instructions 3 - 5 Local sensing The SENSE switch is in ’LOCAL’ position if S1 is ’closed’. Load CAUTION: Do not connect a load to the sense terminals +S and -S, because the maximum current through the switch is limited to 4 A. Currents exceeding this limit will damage the switch.
  • Page 34 3 - 6 Users Manual Half size model Full size model...

  • Page 35: Output Connections

    Output channel connections The number of the output channels of the various power supplies is indicated in the last figure of the model number (single, dual or triple). = PM2811 and PM2831 (single) = PM2812 and PM2832 (dual) = PM2813 (triple)

  • Page 36: Gpib Connections

    3 - 8 Users Manual 3.5.2 GPIB connections The GPIB (General Purpose Interface Bus) is identical to the IEC 625 or IEEE 488 interface bus. At the rear you will find a 24-pin female connector in which the connector pinning assignment is in accordance with IEEE 488.2 - 1987. An IEEE cable connects your power supply via an IEEE interface board to a controller.

  • Page 37: Acceptance Tests

    Installation Instructions 3 - 9 3.6 ACCEPTANCE TESTS The acceptance tests give information about the correct operation of the instrument after installation. The interface test must be performed when using the programmable power supply for remote operation via the Controller/GPIB interface. 3.6.1 Brief check After turning on your power supply, the following self tests on the hardware parts...
  • Page 38 DISABLED. If not in OPERATE mode, the display shows STANDBY. If a failure occurs during one of the tests, inform your FLUKE Sales and Service Center so that repair or replacement of the instrument can be arranged.

  • Page 39: Interface Check

    Installation Instructions 3 - 11 3.6.2 Interface check To perform the GPIB interface check, the power supply must be connected to the controller via the GPIB; therefore, you need a GPIB interface card + software GPIB drivers + a programming language. The various parts of the following interface check must be executed sequentially.

  • Page 40: Performance Verification

    The channel indication (n) and the text "ENABLED n" will be displayed only on multiple output models. If a failure occurs during one of the GPIB interface tests, inform your FLUKE Sales and Service Center so that repair or replacement of the instrument can be arranged.

  • Page 41: Getting Familiar With The Power Supply

    Getting Familair with the Power Supply 4 - 1 4 GETTING FAMILIAR WITH THE POWER SUPPLY This chapter will help the user new to programmable power supplies. 4.1 INITIAL SETUP OF YOUR POWER SUPPLY 4.1.1 Power up routine WARNING: Before you turn on your power supply, make sure that the power input voltage matches the power voltage specifications on the decal on the rear of your power supply.

  • Page 42: Instrument Identification

    4 - 2 Users Manual 4.1.2 Instrument identification Your power supply can be identified by its model number and version number. At delivery the power supply has a default IEEE device address. To identify your power supply, proceed as follows: 1) Start up the identification by pressing: key as many times as necessary to dislay the following: D D R E S S...

  • Page 43: Front Panel Layout

    Getting Familair with the Power Supply 4 - 3 4.2 FRONT PANEL LAYOUT The following sections describe how to use the front panel control keys in combination with the 16-character display and the annunciators concerned. To be able to use the front panel keys, the power supply must be in the local mode. If the supply is in the remote mode (REM text displayed), press If the power supply does not react after you press the LCL key, this key is disabled remotely by the Local Lockout (LLO) command from the GPIB controller.
  • Page 44 4 - 4 Users Manual Verify/set the output current of the selected channel. Verify/set the overvoltage trip level of the selected channel. OCP EN Enable/disable the overcurrent protection of OCP DIS the selected channel. DELAY FAULT handling Verify/set the reprogramming delay Verify/set the bit mask of the fault register.
  • Page 45 Getting Familair with the Power Supply 4 - 5 c) COUPLE PROTection of all output channels. d) Set STandBY AT Power ON behavior on or off. e) Adjust the CONTRAST of the display (0-9). LOCK the KEYboard g) Verify/set the GPIB ADDRESS (0 - 30). h) Verify the identity and firmware version of the power supply + its output channel(s).

  • Page 46: Display Indicators

    4 - 6 Users Manual 4.2.2 Display indicators In the OPERATE mode, the display can show up to 16 characters, which are refreshed four times per second. On the front plate just below the display, a number of status abbreviations, e.g., CV (Constant Voltage), have been placed.

  • Page 47: Output Channel Connections

    Getting Familair with the Power Supply 4 - 7 4.3 OUTPUT CHANNEL CONNECTIONS WARNING: To prevent SHOCK HAZARD, turn off the line power before making output channel connections or disable the output channel concerned. All wires and straps must be properly insulated, and connected with terminal block screws securely tightened.

  • Page 48: Getting Started

    4 - 8 Users Manual 4.4 GETTING STARTED The various parts of this tutorial must be executed sequentially. Before starting with this tutorial, make sure the power supply is in the local state. If the supply is in the remote state (REM is displayed), press .

  • Page 49: Setting An Output Voltage

    Getting Familair with the Power Supply 4 - 9 4.4.2 Setting an output voltage Do not connect any load. The +V and +S terminals must be interconnected as well as the -V and -S terminals. 1) Set the voltage of the selected output channel to 5V by pressing: The display shows: V S E T 2) Enter the output voltage setting by pressing...

  • Page 50: Setting An Output Current

    4 - 10 Users Manual 4.4.3 Setting an output current 1) Turn off the power supply. 2) Remove the plastic terminal block cover from the output to be tested. Connect a short circuit (jumper wire) between the - V(oltage) and + V(oltage) output terminals as follows: Note: The diameter of the jumper wire must be large enough to carry the...
  • Page 51 Getting Familair with the Power Supply 4 - 11 Disable the overcurrent protection and reset the output channel by pressing: OCP EN RESET OCP DIS Check that the display reads approximately 0.5A. Also check that the CC annunciator is on, indicating that the output channel is in the ’Constant Current’...
  • Page 52 4 - 12 Users Manual...

  • Page 53: Using Your Programmable Power Supply

    Using your Programmable Power Supply 5 - 1 5 USING YOUR PROGRAMMABLE POWER SUPPLY 5.1 INTRODUCTION This chapter contains functional information about using your programmable power supply (PPS). It covers basic information, such as connecting a load to an output channel, and more advanced information such as the following: 1) Connecting loads in parallel to an output channel.

  • Page 54: Local Operation

    5 - 2 Users Manual 5.2 LOCAL OPERATION Local operation of your power supply is done through the front panel keys and display. Operational and error information is shown on the display. The keys are used for operator communication and have been placed into functional groups. This makes the functional use of the power supply very easy: •...

  • Page 55: Remote Operation

    Please, read the users handbook ‘Standard Commands for Programmable Instruments? to get familiar with the SCPI and IEEE-488.2 standards. This handbook can be ordered at your local Fluke representative. See Appendix A for more information.

  • Page 56: Operating Features

    5 - 4 Users Manual 5.4 OPERATING FEATURES Your programmable power supply is equipped with a GPIB interface, which conforms to the IEEE-488.2 standard and the SCPI protocol (Standard Commands for Programmable Instruments). The power supply can be programmed to operate in a remotely controlled instrumentation system via the GPIB.
  • Page 57 Using your Programmable Power Supply 5 - 5 • Extended STEP possibilities, i.e., the capability to step sequentially through a number of predefined voltage and current settings. This can be done: - Manually using the STEP key. - Automatically at predefined intervals (internal timer) - Externally - by a STEP line trigger via the trigger bus - by a trigger via the GPIB interface You can use this feature to generate test patterns and simulate ramp...
  • Page 58 5 - 6 Users Manual The following illustrations show the possible connections. • SERIES connection to increase the total output voltage capability: load – load load load load load load – WARNING: To guarantee the safe use of the power supply, the total maximum voltage at each terminal must not exceed 240V with respect to ground.

  • Page 59: How To Use The Operating Features

    - Step automatically through voltage/current settings. 5.5.1 Output channel characteristics PM2811/12/13 Each individual output channel can supply power according to its output characteristic. Figure 5.5.1 below gives you information about the three possible output channel characteristics. The power output is rated and limited according to the formula: P (power) = U (voltage) x I (current).
  • Page 60 5 - 8 Users Manual PM2831/32 The following characteristic shows the work area of the output parameters. The linear system power supplies PM2831 and PM2832 can source as well as sink currents. There is, however, only one setting for current. When the power supply is used as a load, the value of the sink current will always track the positive setting.
  • Page 61 Using your Programmable Power Supply 5 - 9 Current sink characteristics PM2831/32 The following figure gives an example that shows the sink characteristics of the power supply. The power supply is used as a constant current load for an external source, where the sink capability of the power supply is demonstrated.

  • Page 62: Local And Remote Sensing

    5 - 10 Users Manual 5.5.2 Local and remote sensing All models have the ability to sense the output voltage locally or remotely. The wires between an output channel and the connected load have a resistance, which causes a voltage drop. If the voltage drop is not acceptable, remote sensing must be applied.
  • Page 63 Using your Programmable Power Supply 5 - 11 Local sensing mode: Local sensing is used when the voltage across the load does not need to compensate for the voltage drop across the load leads. This may be the case when the following conditions exist: •...
  • Page 64 5 - 12 Users Manual When the sense leads are disconnected, the power supply goes into the local sense mode, as the V and S terminals are internally interconnected via resistors. Yet you are strongly recommended to interconnect the V and S terminals with the straps if you use the local sense mode, as open sense inputs are sensitive to noise.

  • Page 65: Constant Voltage Or Constant Current Source

    Using your Programmable Power Supply 5 - 13 5.5.3 Constant voltage or constant current source Your power supply has been designed according to the automatic crossover principle. This means that each output channel will operate in the Constant Voltage (CV) mode or in the Constant Current CC mode, depending on: •...
  • Page 66 5 - 14 Users Manual To protect the load against excessive currents, the maximum current I can be programmed, and the overcurrent protection can be enabled. To protect the load against excessive voltages, the overvoltage protection level can be programmed. LIMITATIONS The output power is limited by: •...
  • Page 67 Using your Programmable Power Supply 5 - 15 Example for a variable load resistance: power = Voltage programmed load = Current programmed output = 2 to 20 (variable) load Required: The V and I parameter have been coupled for the selected output channel.
  • Page 68 5 - 16 Users Manual • I = 0.5A Maximum current through the load becomes 0.5A. • OVP = 7V Overvoltage protection trip level becomes 7V. Sequentially the voltages 2V, 4V, 6V, and 8V will be programmed: • V = 2V =2V/10 = 0.2A.
  • Page 69 Using your Programmable Power Supply 5 - 17 Local control (in CV or CC mode): The voltage V can be set using the key and the numeric input keys. Example: Press the V key to start the voltage setting. Press the keys 3, . (dot), 4 and ENTER to enter the setting of 3.4V. The current I can be set using the key and the numeric input keys.
  • Page 70 5 - 18 Users Manual Remote control (in CV or CC mode): The voltage V can be programmed by the SOURCE subsystem command: [:SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude] The voltage V can be requested by the SOURCE subsystem query: [:SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude]? The output voltage can be read back by the MEASURE subsystem query: :MEASure[:SCALar]:VOLTage[:DC]? Example: Send...

  • Page 71: Store/Recall Function

    Using your Programmable Power Supply 5 - 19 The overvoltage protection level OVP can be programmed by the SOURCE subsystem command: [:SOURce]:VOLTage:PROTection[:LEVel] The overvoltage protection level OVP can be requested by the SOURCE subsystem query: [:SOURce]:VOLTage:PROTection[:LEVel]? Example: Send :VOLT:PROT 7 Set 7V protection level.
  • Page 72 5 - 20 Users Manual At delivery the contents of all addresses are set to their minimum value. When an address has been filled, its contents can be recalled, so that the settings become actual. The actual settings can be updated in OPERATE and STANDBY modes, but they are only active in the OPERATE mode.
  • Page 73 Using your Programmable Power Supply 5 - 21 Press to set the actual voltage at 4V. ENTER Press ENTER to set the actual current at 1A. Press to store the 4V and 1A at memory address 33. STORE ENTER Press to set the actual voltage at 3V.

  • Page 74: Step Functions

    5 - 22 Users Manual 5.5.5 Step functions When a list of memory addresses has been filled with voltage and current settings, it can be used in one of the following ways: 1) AUTO_STEP OFF: This will invoke the manual step function, i.e., the next step is initiated by the operator.
  • Page 75 Using your Programmable Power Supply 5 - 23 • SOLUTION: Press to enter the STEP submenu. ENTER Check that the AUTO STEP is OFF, or press the OFF (0) key to set the AUTO STEP function off. Press to leave the STEP submenu. ENTER Press (only for multiple output models) to select output channel 1.
  • Page 76 5 - 24 Users Manual Example: • REQUIREMENTS: Step automatically through the predefined list of voltage and current settings stored at the memory addresses 20 to 40. When the end of the list is reached, it must be started again at the beginning. The next voltage and current setting must be output for channel 1 at an interval time of 5 seconds.
  • Page 77 Using your Programmable Power Supply 5 - 25 Remote control (automatic stepping): The actual memory address index (1 to 999) can be selected using the [:SOURce]:LIST:INDex[:NSELect] command. The selected memory address can be requested by means of the [:SOURce]:LIST:INDex[:NSELect]? query. A sequence list of memory addresses can be defined using the [:SOURce]:LIST:SEQuence:STARt and [:SOURce]:LIST:SEQuence:STOP commands.
  • Page 78 5 - 26 Users Manual Example: • REQUIREMENTS: Step automatically through the predefined list of voltage and current settings, stored at the memory addresses 20 through 40. When the end of the list is reached, it must be started again at the beginning. The next voltage and current setting must be output for channel 1 at an interval time of 5 seconds.
  • Page 79 Using your Programmable Power Supply 5 - 27 There is a standard GPIB interface connector at the rear. The GPIB interface software supports complete trigger capability. If the trigger source = TIMer, the internal timer of the power supply is used to count the interval time between two consecutive steps.

  • Page 80: Advanced Use

    5 - 28 Users Manual GPIB control: GPIB control can only be done in the remote mode of operation. An external trigger can be programmed in the following ways: • Send By sending the common command TRG to the power supply.

  • Page 81: Parallel Connection Of Output Channels

    Using your Programmable Power Supply 5 - 29 5.6.1 Parallel connection of output channels Note: For the PM2812 and PM2813 you can face a number of restrictions when connecting output channels in parallel to a load. Please read Appendix D to get more information of parallel connection of output channels fore these instruments.
  • Page 82 5 - 30 Users Manual If neither constant voltage nor constant current is required, you may program typical values as well. There are two ways of sensing the load when connecting output channels in parallel: local sensing and remote sensing. Local sensing (outputs in parallel): Connecting the load wires directly to the +V and -V terminals of output channel 2 keeps the number and the total length of the load wires to a minimum.
  • Page 83 Using your Programmable Power Supply 5 - 31 Remote sensing (outputs in parallel): The sense wires are connected from the load to the +S and -S terminals of output channel 2. This compensates for the voltage drop in the wires from the load to the +V and -V terminals.

  • Page 84: Serial Connection Of Output Channels

    5 - 32 Users Manual 5.6.2 Serial connection of output channels Connecting output channels in series provides a greater voltage capability than can be obtained from a single output channel. In principle, you can put more than two output channels in series. However, there is the limitation that the total maximum voltage of each terminal may not exceed 240V with respect to the ground.
  • Page 85 Using your Programmable Power Supply 5 - 33 Local sensing (outputs in series): Connect the load wires to the +V terminal of output channel 1 and the -V terminal of output channel 2, and interconnect the -V terminal of output channel 1 and the +V terminal of output channel 2.
  • Page 86 5 - 34 Users Manual Remote sensing (outputs in series): Connecting extra sense wires from the load to the +S terminal of output channel 1 and the -S terminal of output channel 2 compensates for the voltage drop in the wires from the load to the +V and -V terminals.

  • Page 87: Parallel Connection Of Loads

    Using your Programmable Power Supply 5 - 35 5.6.3 Parallel connection of loads If more than one load is connected to an output channel, use separate wires to connect each load. This minimizes mutual coupling effects and takes full advantage of the power supply’s low output impedance. Each pair of wires should be as short as possible to reduce wire inductance and noise pickup.

  • Page 88: Tips For Remote Sensing Applications

    5 - 36 Users Manual Remote sensing (loads in parallel): The following diagram shows the wiring scheme. LOAD LOAD ST5867 Figure 5.6.6 Remote Sensing withTwo Loads in Parallel If remote sensing is used, locate the distribution terminals (DT) as near as possible to the load terminals.

  • Page 89: Appendix A Accessories

    5322 321 10644 • Two spare fuses • Two mounting brackets (not with PM2811) A.2 Optional The following accessories can be ordered via your local Fluke Sales and Service Center. • 19” Rack mount (with other 19” units) PM9280/03 •...
  • Page 90 A - 2 Users Manual...

  • Page 91: Appendix B Scpi Conformance Information

    SCPI Conformance Information B - 1 APPENDIX B SCPI CONFORMANCE INFORMATION This instrument complies to the SCPI standard version 1993.0. The following classes of commands and queries have been implemented: B.1 IEEE 488.2-1987 ESE? ESR? IDN? OPC? PSC? SRE? STB? TST? B.2 SCPI Std 1993.0 Confirmed :ABORT...
  • Page 92 B - 2 Users Manual :DISPLAY:WINDOW:TEXT:DATA :DISPLAY:WINDOW:TEXT:DATA? :INITIATE:IMMEDIATE :INITIATE:CONTINUOUS :INITIATE:CONTINUOUS? :INSTRUMENT:SELECT :INSTRUMENT:SELECT? :INSTRUMENT:NSELECT :INSTRUMENT:NSELECT? :INSTRUMENT:DEFINE :INSTRUMENT:DEFINE? :INSTRUMENT:DELETE:NAME :INSTRUMENT:DELETE:ALL :INSTRUMENT:CATALOG? :INSTRUMENT:STATE :INSTRUMENT:STATE? :MEASURE:SCALAR:VOLTAGE:DC? :MEASURE:SCALAR:CURRENT:DC? :OUTPUT:STATE :OUTPUT:STATE? :OUTPUT:PROTECTION:TRIPPED? :OUTPUT:PROTECTION:CLEAR :SOURCE:CURRENT:LEVEL:IMMEDIATE:AMPLITUDE :SOURCE:CURRENT:LEVEL:IMMEDIATE:AMPLITUDE? :SOURCE:CURRENT:LIMIT:HIGH? :SOURCE:CURRENT:LIMIT:LOW? :SOURCE:CURRENT:PROTECTION:TRIPPED? :SOURCE:CURRENT:PROTECTION:STATE :SOURCE:CURRENT:PROTECTION:STATE? :SOURCE:VOLTAGE:LEVEL:IMMEDIATE:AMPLITUDE :SOURCE:VOLTAGE:LEVEL:IMMEDIATE:AMPLITUDE? :SOURCE:VOLTAGE:LIMIT:HIGH? :SOURCE:VOLTAGE:LIMIT:LOW? :SOURCE:VOLTAGE:PROTECTION:LEVEL :SOURCE:VOLTAGE:PROTECTION:LEVEL? :SOURCE:VOLTAGE:PROTECTION:TRIPPED? :SOURCE:POWER:LIMIT:HIGH? :SOURCE:FUNCTION:MODE?
  • Page 93 SCPI Conformance Information B - 3 :SOURCE:LIST:VOLTAGE :SOURCE:LIST:VOLTAGE:POINTS? :SOURCE:LIST:CURRENT :SOURCE:LIST:CURRENT:POINTS? :SOURCE:LIST:GENERATION :SOURCE:LIST:GENERATION? :SOURCE:LIST:INDEX:NSELECT :SOURCE:LIST:SEQUENCE:START :SOURCE:LIST:SEQUENCE:STOP :STATUS:OPERATION:EVENT? :STATUS:OPERATION:CONDITION? :STATUS:OPERATION:ENABLE :STATUS:OPERATION:ENABLE? :STATUS:OPERATION:PTRANSITION :STATUS:OPERATION:PTRANSITION? :STATUS:OPERATION:NTRANSITION :STATUS:OPERATION:NTRANSITION? :STATUS:OPERATION:INSTRUMENT:EVENT? :STATUS:OPERATION:INSTRUMENT:CONDITION? :STATUS:OPERATION:INSTRUMENT:ENABLE :STATUS:OPERATION:INSTRUMENT:ENABLE? :STATUS:OPERATION:INSTRUMENT:PTRANSITION :STATUS:OPERATION:INSTRUMENT:PTRANSITION? :STATUS:OPERATION:INSTRUMENT:NTRANSITION :STATUS:OPERATION:INSTRUMENT:NTRANSITION? :STATUS:OPERATION:INSTRUMENT:ISUMMARY:EVENT? :STATUS:OPERATION:INSTRUMENT:ISUMMARY:CONDITION? :STATUS:OPERATION:INSTRUMENT:ISUMMARY:ENABLE :STATUS:OPERATION:INSTRUMENT:ISUMMARY:ENABLE? :STATUS:OPERATION:INSTRUMENT:ISUMMARY:PTRANSITION :STATUS:OPERATION:INSTRUMENT:ISUMMARY:PTRANSITION? :STATUS:OPERATION:INSTRUMENT:ISUMMARY:NTRANSITION :STATUS:OPERATION:INSTRUMENT:ISUMMARY:NTRANSITION? :STATUS:PRESET :STATUS:QUEUE:NEXT? :STATUS:QUESTIONABLE:EVENT? :STATUS:QUESTIONABLE:CONDITION?

  • Page 94: Scpi Approved

    B - 4 Users Manual :STATUS:QUESTIONABLE:NTRANSITION? :STATUS:QUESTIONABLE:INSTRUMENT:EVENT? :STATUS:QUESTIONABLE:INSTRUMENT:CONDITION? :STATUS:QUESTIONABLE:INSTRUMENT:ENABLE :STATUS:QUESTIONABLE:INSTRUMENT:ENABLE? :STATUS:QUESTIONABLE:INSTRUMENT:PTRANSITION :STATUS:QUESTIONABLE:INSTRUMENT:PTRANSITION? :STATUS:QUESTIONABLE:INSTRUMENT:NTRANSITION :STATUS:QUESTIONABLE:INSTRUMENT:NTRANSITION? :STATUS:QUESTIONABLE:INSTRUMENT:ISUMMARY:EVENT? :STATUS:QUESTIONABLE:INSTRUMENT:ISUMMARY:CONDITION? :STATUS:QUESTIONABLE:INSTRUMENT:ISUMMARY:ENABLE :STATUS:QUESTIONABLE:INSTRUMENT:ISUMMARY:ENABLE? :STATUS:QUESTIONABLE:INSTRUMENT:ISUMMARY:PTRANSITION :STATUS:QUESTIONABLE:INSTRUMENT:ISUMMARY:PTRANSITION? :STATUS:QUESTIONABLE:INSTRUMENT:ISUMMARY:NTRANSITION :STATUS:QUESTIONABLE:INSTRUMENT:ISUMMARY:NTRANSITION? :SYSTEM:KLOCK :SYSTEM:KLOCK? :SYSTEM:ERROR? :SYSTEM:SET :SYSTEM:SET? :SYSTEM:VERSION :SYSTEM:VERSION? :SYSTEM:VERSION 1990.0 :SYSTEM:VERSION 1993.0 B.3 SCPI approved :SOURCE:CURRENT:LEVEL:IMMEDIATE:AMPLITUDE:AUTO :SOURCE:CURRENT:LEVEL:IMMEDIATE:AMPLITUDE:AUTO? :SOURCE:VOLTAGE:LEVEL:IMMEDIATE:AMPLITUDE:AUTO :SOURCE:VOLTAGE:LEVEL:IMMEDIATE:AMPLITUDE:AUTO?

  • Page 95: Scpi Syntax And Style

    SCPI Conformance Information B - 5 B.4 SCPI syntax and style REMARK: It is advised that you use the :SYSTEM:VERSION command to control compatibility of the application program with respect to the SCPI implementation of the programmable power supply used. This is helpful for future SCPI compatibility.
  • Page 96 B - 6 Users Manual...

  • Page 97: Appendix C Abbreviations, Symbols & Terms

    Abbriviations, Symbols & Terms C - 1 APPENDIX C ABBREVIATIONS, SYMBOLS & TERMS C.1 Abbreviations = Alternating current ADDA = Analog/Digital - Digital/Analog = Acceptor Handshake AMPL = Amplitude ANSI = American National Standards Institute = Auxilliary = Bayonet Normal Connector = Calibration = Catalog = Constant Current...
  • Page 98 C - 2 Users Manual = Electro Magnetic Susceptibility EN(AB) = Enable = Error = Event Summary Bit = Event Status Enable = Event Status Register EURO = European EVEN = Event = External = Failure = Fault FUNC = Function = Generation = Group Execute Trigger GPIB...
  • Page 99 Abbriviations, Symbols & Terms C - 3 = Minimum = Mode = Most Significant Bit = Most Significant Digit = Master Summary Status MTBF = Mean Time Between Failures MTTR = Mean Time To Repair = Numeric forgiving NSEL = Numeric select = Negative transition OC(P) = Overcurrent (Protection)
  • Page 100 C - 4 Users Manual = Sense = Save SCAL = Scalar SCPI = Standard Commands for Programmable Instruments = Select = Sequence = Service Request Enable SR(Q) = Service Request SOUR = Source STAT = State = Status byte STBY = Standby = Step...

  • Page 101: Glossary Of Symbols

    Abbriviations, Symbols & Terms C - 5 C.2 Glossary of symbols = percentage = beginning of a common command/query = separation sign for commands/queries = beginning of a subsystem command/query part = end of a query = degree (e.g. C =degree Celsius) = Ampere = Celsius = differentiate, e.g., di (derived current)

  • Page 102: Glossary Of Terms

    C - 6 Users Manual C.3 Glossary of terms AUTORANGING A power supply is autoranging if it can supply the maximum rated power over the continuous range of voltage and current. CALIBRATION MODE In this mode the power supply can be adjusted to comply with external calibration standards.
  • Page 103 Abbriviations, Symbols & Terms C - 7 PROGRAMMING RESOLUTION Average programming step size. That is the smallest change that can be obtained either using the front panel keys or a controller. PROGRAMMING RESPONSE TIME The maximum time for the output to settle to a programmed value within a settling band, after having finished executing the settle command.
  • Page 104 C - 8 Users Manual...

  • Page 105: Appendix D Application For Pm2812 And Pm2813

    Application for PM2812 and PM2813 D - 1 APPENDIX D APPLICATION FOR PM2812 AND PM2813 The following application support information is meant for the user who wants to extend the maximum current of the PM2812 or PM2813 Power Supply by parallel connection of channels.
  • Page 106 D - 2 Users Manual This set-up will cause no problem as CH 1 supplies a constant current (CC) of 5A and CH 2 supplies the additional current needed in constant voltage mode (CV indicator). A problem will arise when the current needed by the load decreases below 5A, for example when the load resistance increases.
  • Page 107 Application for PM2812 and PM2813 D - 3 The same is valid for two parallel connected Power Supplies when one Power Supply is set to the Standby mode. The Standby mode, like the Disable mode, will try to sink all outputs to 0V. Then the down programmer can also become active when one Power Supply is still in Operate mode.
  • Page 108 D - 4 Users Manual Case 2: Constant Voltage, Output Current from a fixed minimum value to the maximum The following procedure is useful only if you have one channel that can cover the complete range from the minimum to the maximum and if the other channels together can supply the fixed minimum current.
  • Page 109 Application for PM2812 and PM2813 D - 5 The channels 1 and 2 operate in the Constant Current mode, and Channel 3 in the Constant voltage mode. This example will not work if the current through the load decreases below 10A. Then the current contribution of Channel 3 is reduced to 0A, and either Channel 1 or Channel 2 (or both) will enter the Constant Voltage mode (at 10.1V).
  • Page 110 D - 6 Users Manual...

  • Page 111: Index

    Index I - 1 INDEX 19-Inch Rackmount..........A-1 Acceptance Test .
  • Page 112 I - 2 Users Manual EMI Standards ..........2-14 Enabled .

  • Page 113: Overcurrent Protection

    Index I - 3 Load Effect ........... C-6 Load Lead Resistance .
  • Page 114 I - 4 Users Manual Power ON/OFF..........3-4 Power Fuses .
  • Page 115 Index I - 5 Status Byte Register ..........2-6 Status Handling .

This manual is also suitable for:

Pm2812Pm2813Pm2831Pm2832

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