Agilent Technologies 66001A manual

USER’S GUID E A gilent Technologi es Series 661xxA MPS POWER M ODULES & Model 66001A MPS KEYBOA RD !A A gilent Part No. 5959- 3386 Prin ted in M alaysia Micro fiche Part No. 5959- 3387 Sept ember 2004[...]

2 CERTIFICA TION Agilent Technologies certifies that this pr oduct met its published specifications at time of shipment fr om the factory. Agilent Technologies further cer tifies that its calibration measur ements are traceable to the United States N ational Bureau of Standards, to the extent allowed by the Bur eau's calibration facility, and [...]

3 SA FETY SUM M A RY The following general safety precautions must be observed during all phases of operation of this power module. Failure to comply with these precautions or with specific warnings elsewhere in this guide violates safety standards of design, manufacture, and intended use of the power module. Agilent Technologies assum es no liabil[...]

4 SA FETY SYM BOL DEFINIT IONS Symbol Description Symbol Description Direct current Ter m inal f or Line conductor on perm anently installe d equipme nt Alternating current Caution, r isk of el ectr i c shock Both d irect and alternatin g current Caution , hot su rface Three-phas e alternating cu rrent Caution (refer to accomp anying docu ments) Ea[...]

5 DECLA RA TION OF CONFORM ITY Acc ording to ISO/ IEC Guide 22 and CE N/CENELE C EN 45014 Manufacturer’s Name and Address Respon sible Part y Alterna te Ma nufacturi ng Site Agilen t Technologies, In c. Agilen t Technologies (Malay sia) Sdn. Bhd 550 Clark D rive, Su ite 101 Budd La ke, New Jersey 07828 USA Mala ysia Manufa cturing Bayan Lepas F r[...]

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7 Table of Contents 1. General Information Introduction ................................................................................................................ .................................. 9 Safety Considerations ....................................................................................................... ..................[...]

8 Table of Contents (continued) Module Output Connecto r ................................................................................................. . .................... . 29 Error Message s .......................................................................................................... . ....................... . 29-30 4. Basic P[...]

General Information 9 1 General Information Introduction This guide describes how to install, check out, operate, and calibrate the Agilent Series 661xxA power modules used in the Agilent 66000 Modular Power System. Programming the power module from the optional Agilent 66001A Keyboard is described in Appendix B of this guide. Programming the power[...]

10 General Information Accessories Agilent No. Description 34551A Rack mount for Agilent 66001A MPS keyboard Description The Agilent 66lxxA Series Power Modules are used in the Agilent 66000 Modular Power System (MPS) mainframe to provide a range of dc output voltages and currents. The modules are installed or removed from the front of the mainfram[...]

General Information 11 When the power module is operated beyond either rated output, the performance specifications are not guaranteed, although typical performance may be good. Operation in quadrant 2 is limited to about 10% of the maximum rated positive output current. This allows the power module to sink current for more rapid downprogramming in[...]

12 General Information Table 1-1. Performance Specifications (continued) Agilent Model Parameter 66101A 66102A 66103A 66104A 66105A 66106A Line Regulation (change in output voltage or current for any line change within ratings) Voltage: 0.5 mV 0.5 mV 1 mV 2 mV 3 mV 5 mV Current: 0.75 mA 0.5. mA 0.3 mA 0.1 mA 50 µ A 30 µ A Transient Response Time [...]

General Information 13 Table 1-2. Supplemental Characteristics (continued) Agilent Model Parameter 66101A 66102A 66103A 66104A 66105A 66106A Temperature Coefficients (change in output per ° C after a 30-minute warmup) Output Voltage: 30 ppm + 0.1 mV 0.2 mV 0.3 mV 0.6 mV 1.1 mV 1.8 mV Output Current: 30 ppm + 0.2 mA 0.1 mA 0.05 mA 0.03 mA 0.01 mA 0[...]

14 General Information Table 1-2. Supplemental Characteristics (continued) Agilent Model Parameter 66101A 66102A 66103A 66104A 66105A 66106A Trigger Response Time (average time for the output voltage or current to begin to change upon receipt of an external trigger) With GPIB activity: 5 ms Without GPIB activity: 3 ms Trigger Maximum Frequency (for[...]

General Information 15 Table 1-2. Supplemental Characteristics (continued) Parameter Agilent Model Number and Parameter Value Output Characteristic Curve: Table 1-3. Replaceable Parts List Description Agilent Part No. Cable assembly, mainframe GPIB 0.5 meters (1.6 ft) 10833D 1 meter (3.3 ft) 10833A 2 meters (6.6 ft) 10833B 4 meters (13.2 ft) 10833C[...]

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Installation 17 2 Installation Inspection Damage When you receive your power module, inspect it for any obvious damage that may have occurred during shipment. If there is damage, notify the shipping carrier and the nearest Agilent Sales and Support Office immediately. Warranty information is printed in the front of this guide. Items Supplied In add[...]

18 Installation Figure 2-1. Power Module Line Fuse and Switches Figure 2-2. Power Module Configuration Switch Table 2-1. Settings for Power Module Configuration Switch Required Switch Setting Desired Function 1 2 3 4 5 6 7* 8* RI disabled 0 0 1 1 RI unlatched (live) 0 1 1 1 RI latching † 1 1 1 1 Display disabled 0 1 1 Display enabled † I 1 1 In[...]

Installation 19 Remote Inhibit (RI) Function Switches This function allows the power module outputs to be shut down from a signal (low-true TTL level) applied to the mainframe INH input. The INH input is internally connected to the mainframe remote inhibit (RI) line. This line is normally high and is distributed to all power modules in the mainfram[...]

20 Installation Installing The Module In The Mainframe Figure 2-3. Power Module Installation Note A fully loaded mainframe can weigh over 36 kg (80 lbs). Install the mainframe into the rack (see the "Mainframe Users Guide") before installing the modules into the mainframe. 1. Turn off the mainframe power switch. 2. Make certain the pull t[...]

Installation 21 Output Connections Before making the actual connections, you must decide on the system configuration. The following factors are described in the rest of this chapter: ■ using the correct wire size ■ maintaining isolation guidelines ■ selecting local or remote voltage sensing ■ connecting modules in series or in parallel ■ [...]

22 Installation Remote Voltage Sensing Figure 2-4B shows the wiring for remote sensing. There is a switch on the output connector that selects either local or remote sensing of the output voltage. To configure the output for remote sensing, do the following: ■ Connect sense leads to the load ■ Make certain that the connector switch is set to RE[...]

Installation 23 Output Rating The rated output voltage and current specified in Table 1-1 applies at the output terminals of the power module. With remote sensing, the power module must increase its output to compensate for voltage dropped in the load leads. If you attempt to provide full rated output voltage at the sense terminals (load), the powe[...]

24 Installation 5. In order to maintain proper regulation, the load must always draw at least as much current as is programmed for the module that is in CC mode. You can maintain regulation over a range of current only as long as this condition remains true. 6. As near as is permitted by condition 5, program the current levels of both modules for a[...]

Installation 25 Figure 2-6. Connecting Power Modules in Series Each power module has a reverse voltage protection diode across its output. If a reverse voltage is applied, the power module has no control over the current through this diode. To avoid damaging the power module, never connect it to a reverse voltage that can force it to conduct curren[...]

26 Installation The power module is designed to be stable for load capacitances up to the following values: Agilent 66101A 50,000 µ F Agilent 66104A 4,500 µ F Agilent 66102A 20,000 µ F Agilent 66105A 2,750 µ F Agilent 66103A 10,000 µ F Agilent 66106A 1,650 µ F Inductive Loads You may safely connect the power module output to inductive loads u[...]

Turn-On Checkout 27 3 Turn-On Checkout Introduction This chapter provides a quick test of the power module functions. See "Chapter 4 - Basic Power Module Commands" for more details of power module operation. Note These procedures assume you have checked and, if required, correctly set the following switches for each module: • the line v[...]

28 Turn-On Checkout Power Module Turn-On State When you turn on the mainframe, the power module goes through a self-test. All front panel readout digits and annunciators turn on briefly. The panel then remains in the state shown in Table 3-1A. Note The figure assumes the power module still retains its factory default turn-on state. You can change t[...]

Turn-On Checkout 29 In Case Of Trouble Mainframe Failure You can assume there is a problem with the mainframe if there is more than one module in the mainframe and none of the module fans are on. The trouble also is probably in the mainframe if the module fans are on and the their displays are enabled (see "Configuration Switch" in "[...]

30 Turn-On Checkout Selftest Error Messages Table 3-3 lists the displayed selftest error messages. All these errors are hardware failures that require service. Note If you are using the optional Agilent 66001A MPS Keyboard, it will also display selftest error messages. Table 3-3. Selftest Error Messages Display Failed Test Display Failed Test U 1 I[...]

Basic Power Module Commands 31 4 Basic Power Module Commands Introduction "Chapter 3 - Language Dictionary" of the Programming Guide describes all the power module commands. This chapter introduces you to the commands that control the following basic functions: • output state • protection circuits • fixed-mode output • list-mode o[...]

32 Basic Power Module Commands Controlling the Output State The following commands control the power module output state: Table 4-1. Power Module Output Commands Command Function OUTP ON Enables the output. OUTP OFF Disables the output. (If an optional output relay is installed, the command is executed in a sequence that prevents "hot switchin[...]

Basic Power Module Commands 33 Controlling List-Mode Output The following commands control the power module list-mode voltage and current output. Lists require a trigger to begin execution. For an explanation of lists and triggers, see "Chapter 5 - Synchronizing Power Module Output Changes": in the Programming Guide . Table 4-4. Power Mod[...]

34 Basic Power Module Commands Using the RI/DFI Functions RI (Remote Inhibit) Input The signal applied to the mainframe digital connector INH input (see "Chapter 3 Connections" of the mainframe Installation Guide) is the RI (remote inhibit). The module function switch described in "Chapter 2 - Installation" allows you to enable [...]

Calibration 35 A Calibration Introduction The power m odule m ay be cal ibrated eith er over the GPIB f rom a controll er or from an Agilen t 66001A Modu lar Pow er System keyboard. Instru ctions are inclu ded for either m ethod. The procedures given here apply to all Series 66l0xA Pow er Modules . Note The Agi lent 66000A mainf rame does not requi[...]

36 Calibration Equipment Required The equipment listed in Table A-1, or equivalent, is required for calibration. Table A-1. Equipment Required for Calibration Equipment Characteristics Recommended Model Voltmeter D-c accuracy 0.005%, 6 digits; resolution 1 µ V Agilent 3458A Shunt Agilent 66101A, 66102A 0.01 Ω , 100 A, 100 W, 0.04% @ 100 W, 0.01%[...]

Calibration 37 Figure A-1. Calibration Test Setup Calibrating Current The following procedure calibrates the output current. During the calibration, you will make two voltage measurements across the output shunt and enter the computed current. Table A-3. Current Calibration Procedure Keyboard Entry Controller Entry † Function OUTP OFF Disable the[...]

38 Calibration Using The CAL:AUTO Command Normal calibration procedures also calibrate the readback circuits that respond to the MEAS: CURR? and MEAS: VOLT? commands. During normal operation, the readback accuracy is affected by temperature changes within the power module. Use of the CAL:AUTO command reduces the temperature error component of the r[...]

Calibration 39 10 ! VOLTAGE CALIBRATION PROGRAM 20 ! CONNECT INSTRUMENTS AS SHOWN IN FIGURE A-la 30 ! 40 DIM Resp$[255],Err_msg$[255] 50 Volt_cal: ! 60 Err_found=0 70 INPUT "CONNECT INSTRUMENTS AS S HOWN IN FIGURE A-la ... Press any key to continue.” ,Resp$ 80 Resp$="" 90 ASSIGN @Ps TO 70500 ! ASSIGN POWER SUPPLY GPIB ADDRESS 100 ![...]

40 Calibration 500 INPUT "ENTER VALUE OF CURRENT SHUNT BEING USED",Shunt_val 510 OUTPUT @Ps;"CAL:CURRENT:LEVEL MIN" 520 INPUT "ENTER VOLTAGE MEASUREMENT FROM EXTERNAL VOLTMETER",Volt_read 530 Current=Volt_read/Shunt_val 540 OUTPUT @Ps;"CAL:CURRENT ";Current 550 OUTPUT @Ps;"CAL:CURRENT:LEVEL MAX" 560[...]

Agilent 66001A MPS Keyboard 41 B Using The Agilent 66001A MPS Keyboard Introduction This appendix describes the Agilent 66001A Modular Power System (MPS) Keyboard, which is available as an option for the Agilent 66000A Modular Power System. The Agilent 66001A MPS Keyboard lets you program the Agilent 66000A Modular Power System without having to co[...]

42 Agilent 60001A MPS Keyboard Keyboard Description This section briefly explains the various areas on the keyboard as indicated in the following figure:  DISPLAY Subaddress and The subaddress of the presently selected module appears on the left side of the display. The Instrument instrument field displays an instrument number when the module co[...]

Agilent 66001A MPS Keyboard 43 ô SYSTEM KEYS This key switches from remote operation (over the GPIB) to local operation using the keyboard. Press when the Rmt annunciator is on to enable the keyboard. This key moves the cursor to the subaddress field so you can select another module. Use the Entry or Select keys to enter another subaddress. í FUN[...]

44 Agilent 60001A MPS Keyboard û ENTRY KEYS These keys let you enter numeric values. Values can be entered directly. If the Meter function is active, the display automatically switches to the Command function with the appropriate command for programming the metered mode on the display. This key enters the decimal point. This key is used to separat[...]

Agilent 66001A MPS Keyboard 45 Using The Display Changing or Entering Values The following figure is an example of the keyboard display when a power module is addressed and the Meter function is active: The keyboard continuously displays measured voltage and current. The blinking cursor initially highlights the voltage field, which indicates that t[...]

46 Agilent 60001A MPS Keyboard Sending SCPI Commands As described in the power module Programming Guide , SCPI commands are organized into message units. The keyboard can only send one message unit at a time; you cannot combine message units. Also, optional headers within a command do not appear on the display. There are two ways to construct messa[...]

Agilent 66001A MPS Keyboard 47 Press to execute the command. Using the letter keys to directly access and send commands is much faster than using the Select keys to find and then send commands. Of course, this method is faster only if you know which commands you are going to program. The following sequence shows the same example using the letter ke[...]

48 Agilent 60001A MPS Keyboard The query response remains on the display until you press another key to do something else, or until the module goes into remote mode. Press or to return to the meter function. To query the programmed setting of any command parameter, use the cursor control keys to access the parameter field of the command. The value [...]

Agilent 66001A MPS Keyboard 49 If the Err annunciator is still on after the error message is displayed, it means there are additional error messages in the SCPI error queue. Press to display the other messages. Each time you press the key it removes one error from the error queue. SCPI Command Tree The following figure illustrates the SCPI command [...]

50 Agilent 60001A MPS Keyboard[...]

Index 51 Index A address slot, 20 ampere capacity, 21 annunciators, display panel Addr, 27 CC , 27 Dis , 27 Prot, 27 Unr, 27 C cables GPIB, 15 serial link, 15 calibrating current, 37 calibrating voltage, 36 calibration, 35 constants, 38 equipment for, 36 password, 35, 38 program for, 39 verification of, 35 capacitive loads, 26 CC mode, 11 checkout,[...]

52 Index Index (continued) Lsn, 42 Prot, 42 Rmt , 42 Shift, 42 SRQ, 42 Tlk, 42 Unr, 42 keyboard cursor, 45 keyboard display, 42, 45 keyboard entry keys, 44, 45 keyboard function keys, 43 keyboard jack, 41 keyboard keys , 44 , 44 , 44 , 44 , 44 , 43, 45, 47 , 43, 45 , 43, 46 , 43, 46, 47 , 44 , 44 , 43, 46, 47 , 43 , 44 , 44, 45, 47, 48 , 43 , 43, 4[...]

Index 53 Index (continued) R remote inhibit (see RI) RI description of , 10 digital connector pins for (see Chapter 3 in Installation Guide) examples of use , 34 example of wiring (see Chapter 3 in Installation Guide) mainframe input signal (see Chapter 5 in Programming Guide) RI Questionable Status bit (see Chapters 3 and 4 in Programming Guide) s[...]

54 Agilent Sales and Support Office Agilent Sales and Support Offices For more information about Agilent Technologies test and measurement products, applications, services, and for a current sales office listing, visit our web site: http://www.agilent.com/find/tmdir You can also contact one of the following centers and ask for a test and measuremen[...]

Manual Updates The following update s have been m a de to this manual sinc e the print re vision indicated on the title pa ge. 4/15/00 All r e fer ences t o H P have be e n changed t o A gilent. All r e fer ences t o H P-IB ha ve been c hanged to GP IB. 6/21/02 The ser ial num ber and opt i on number i nf orma tion in cha pt e r 1 has be e n update[...]