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Summary of Contents for Agilent Technologies 66001A
- Page 1 USER’S GUIDE Agilent Technologies Series 661xxA MPS POWER MODULES & Model 66001A MPS KEYBOARD Agilent Part No. 5959-3386 Printed in Malaysia Microfiche Part No. 5959-3387 Update April 2000...
- Page 2 Export price). If Agilent Technologies is unable, within a reasonable time to repair or replace any product to condition as warranted, the Customer shall be entitled to a refund of the purchase price upon return of the product to Agilent Technologies.
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Page 3: Safety Summary
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 assumes no liability for the customer's failure to comply with these requirements. - Page 4 This document contains proprietary information protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated into another language without the prior consent of Agilent Technologies. The information contained in this document is subject to change without notice.
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Page 5: Declaration Of Conformity
This DoC applies to above-listed products placed on the EU market after: January 1, 2004 Date For further information, please contact your local Agilent Technologies sales office, agent or distributor, or Agilent Technologies Deutschland GmbH, Herrenberger Stra To obtain the latest Declaration of Conformity, go to... -
Page 7: Table Of Contents
General Information Introduction ...9 Safety Considerations...9 Instrument Identification ...9 Options ...9 Accessories...10 Description ...10 Programming ...10 Output Characteristic...10 Specifications and Supplemental Characteristics ...11 Installation Inspection ...17 Damage...17 Items Supplied...17 Switches ...17 Line Voltage Switches...17 Configuration Switch...17 Remote Inhibit (RI) Function Switches ...19 Display Function Switch...19 Calibration Function Switch ...19 Power On Function Switch...19... - Page 8 Using the CAL:AUTO Command ...38 Recovering the Factory Calibration Constants ...38 Recovering from a Lost Calibration Password ...38 Calibration Error Messages ...38 Agilent BASIC Calibration Program...38 Using the Agilent 66001A MPS Keyboard Introduction ...41 Connecting the Keyboard ...41 Keyboard Description...42 Using the Display ...45 Changing or Entering Values...45...
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Page 9: General Information
Instrument Identification Agilent Technologies instruments are identified by a 10-digit serial number. The format is described as follows: first two letters indicate the country of manufacture. The next four digits are a code that identify either the date of manufacture or of a significant design change. -
Page 10: Accessories
FLT line in response to selected internal events or turns off the output in response to an input on the mainframe INH line. The power module also can be programmed locally from the optional Agilent 66001A MPS Keyboard. The keyboard has an alphabetical command menu for all power module SCPI commands. By scrolling through the menu and entering the appropriate parameters, commands may be created for development or debugging. -
Page 11: Specifications And Supplemental Characteristics
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 the CV mode. Specifications and Supplemental Characteristics Table 1-1 lists the specifications of the power modules. - Page 12 Table 1-1. Performance Specifications (continued) Parameter Line Regulation (change in output voltage or current for any line change within ratings) Voltage: Current: Transient Response Time (for output voltage to recover to within 100 mV of its previous level following a step change in load current that is up to 10% of the power module rated output current.
- Page 13 Table 1-2. Supplemental Characteristics (continued) Parameter Temperature Coefficients (change in output per C after a 30-minute warmup) Output Voltage: 30 ppm + Output Current: 30 ppm + Voltage Readback: 20 ppm + 20 ppm + Current Readback: OV Protection: Maximum Reverse Current (maximum current, without damage, that the power module will withstand while turned on and with the dc output...
- Page 14 Table 1-2. Supplemental Characteristics (continued) Parameter Trigger Response Time (average time for the output voltage or current to begin to change upon receipt of an external trigger) With GPIB activity: Without GPIB activity: Trigger Maximum Frequency (for repetitive external triggering, the maximum frequency for which the Trigger Response Time is valid) With GPIB activity:...
- Page 15 Table 1-2. Supplemental Characteristics (continued) Parameter Agilent Model Number and Parameter Value Output Characteristic Curve: Description Cable assembly, mainframe GPIB 0.5 meters (1.6 ft) 1 meter (3.3 ft) 2 meters (6.6 ft) 4 meters (13.2 ft) Cable assembly, mainframe serial link Fuse, ac-line, 6 A Output connector, standard Output connector, with relays...
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Page 17: Installation
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. - Page 18 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 Desired Function RI disabled RI unlatched (live) RI latching † Display disabled Display enabled † Inhibit calibration Factory calibration Normal calibration †...
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Page 19: Remote Inhibit (Ri) Function Switches
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 mainframe. -
Page 20: Installing The Module In The Mainframe
Installing The Module In The Mainframe 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. Turn off the mainframe power switch. Make certain the pull tab extends from the module (see Figure 2-3). -
Page 21: Output Connections
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 using output relays connecting to capacitive or inductive loads Selecting the Proper Wire Size... -
Page 22: Remote Voltage Sensing
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 REMOTE Note... -
Page 23: Output Rating
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 power module’s output voltage may exceed its maximum rating. -
Page 24: Series Operation
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. -
Page 25: Multiple Loads
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 current in excess of the power module’s maximum reverse current (see Table 1-2). -
Page 26: Inductive Loads
The power module is designed to be stable for load capacitances up to the following values: Agilent 66101A 50,000 F Agilent 66102A 20,000 F Agilent 66103A 10,000 F Inductive Loads You may safely connect the power module output to inductive loads up to 100 mH. (Higher inductances are possible with a modified module. -
Page 27: Turn-On Checkout
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 voltage switch (see Figure 2-1) the configuration switch (see Table 2-2) -
Page 28: Module Turn-On State
The power module is designed for remote programming over the GPIB. It also can be locally programmed from the optional Agilent 66001A MPS Keyboard. Table 3-2 gives the SCPI commands for the remotely programmed tests. You can send these same commands from the keyboard (see "Appendix B"). -
Page 29: In Case Of Trouble
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"... -
Page 30: Error Messages
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. Display Failed Test... -
Page 31: Basic Power Module Commands
The power module can be programmed from a controller over the GPIB or from an optional Agilent 66001A MPS Keyboard plugged into the mainframe. In order to apply the information in this chapter, you must have a working knowledge of either method. -
Page 32: Controlling The Output State
Controlling the Output State The following commands control the power module output state: Table 4-1. Power Module Output Commands Command 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 switching".) OUTP1,NOR Enables the output without affecting the output relay. -
Page 33: Controlling List-Mode Output
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. -
Page 34: Using Ri/Dfi Functions
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 or disable the RI input and, when enabled, to specify RI as either latching or nonlatching. -
Page 35: Introduction
Calibration Introduction The power module may be calibrated either over the GPIB from a controller or from an Agilent 66001A Modular Power System keyboard. Instructions are included for either method. The procedures given here apply to all Series 66l0xA Power Modules. -
Page 36: Equipment Required
66104A, 66105A, coeff. 0.002%/watt in air 66106A GPIB Controller or HP Vectra (or IBM compatible) with GPIB Interface or Agilent BASIC series Agilent 66001A Keyboard Calibrating Voltage Calibration may cause dangerous voltages to be present at the power module output. -
Page 37: Calibrating Current
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. Keyboard Entry (Before proceeding, set the module output, via the keyboard or the GPIB, for 1.0 V at 0.5 A.) Wait for the meter reading to stabilize. -
Page 38: Using The Cal:auto Command
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 readback accuracy specification. See "Chapter 3 - Language Dictionary"... - Page 39 ! VOLTAGE CALIBRATION PROGRAM ! CONNECT INSTRUMENTS AS SHOWN IN FIGURE A-la DIM Resp$[255],Err_msg$[255] 50 Volt_cal: Err_found=0 INPUT "CONNECT INSTRUMENTS AS SHOWN IN FIGURE A-la ... Press any key to continue.” ,Resp$ Resp$="" ASSIGN @Ps TO 70500 OUTPUT @Ps;"*RST;OUTPUT ON" OUTPUT @Ps;"VOLT MAX"...
- Page 40 INPUT "ENTER VALUE OF CURRENT SHUNT BEING USED",Shunt_val OUTPUT @Ps;"CAL:CURRENT:LEVEL MIN" INPUT "ENTER VOLTAGE MEASUREMENT FROM EXTERNAL VOLTMETER",Volt_read Current=Volt_read/Shunt_val OUTPUT @Ps;"CAL:CURRENT ";Current OUTPUT @Ps;"CAL:CURRENT:LEVEL MAX" INPUT "ENTER VOLTAGE MEASUREMENT FROM EXTERNAL VOLTMETER",Volt_read Current=Volt_read/Shunt_val OUTPUT @Ps;"CAL:CURRENT ";Current GOSUB Save_cal IF Err_found THEN CALIBRATION (Y OR N)?",Resp$ Current_cal END IF...
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Page 41: Introduction
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 connect it to a computer. -
Page 42: Keyboard Description
Keyboard Description This section briefly explains the various areas on the keyboard as indicated in the following figure: The subaddress of the presently selected module appears on the left side of the display. The Subaddress and Instrument instrument field displays an instrument number when the module contains more than one instrument. Power supply modules do not use this field. - Page 43 (same as ô SYSTEM KEYS when the Rmt annunciator is on to enable the keyboard. í FUNCTION KEYS each time you want to send a command to all modules. ÷ SELECT KEYS to send the command. Agilent 66001A MPS Keyboard...
- Page 44 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.
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Page 45: Using The Display
(WTG) for a trigger input. The status response remains on the display until you press another key to do something else, or until the module goes into remote mode. Press to return to the meter function. Agilent 66001A MPS Keyboard... -
Page 46: Sending Scpi Commands
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. -
Page 47: Query Example
Queries return data from the addressed module. Use the Select keys or the letter keys to construct and send queries to the addressed module in the same way that you send commands. When you enter the query, the display returns a value. In the following example, the power module is queried as to its actual voltage output: Agilent 66001A MPS Keyboard... -
Page 48: Error Example
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 To query the programmed setting of any command parameter, use the cursor control keys to access the parameter field of the command. -
Page 49: Scpi Command Tree
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 tree used by the keyboard. Agilent 66001A MPS Keyboard... - Page 50 50 Agilent 60001A MPS Keyboard...
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Page 51: Index
address slot, 20 ampere capacity, 21 annunciators, display panel Addr, 27 CC, 27 Dis, 27 Prot, 27 Unr, 27 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... - Page 52 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...
- Page 53 remote inhibit (see 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) signal electrical characteristics (see Chapter 1 in...
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Page 54: Agilent Sales And Support Offices
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 measurement sales representative. -
Page 55: Manual Updates
Manual Updates The following updates have been made to this manual since the print revision indicated on the title page. 4/15/00 All references to HP have been changed to Agilent. All references to HP-IB have been changed to GPIB. 6/21/02 The serial number and option number information in chapter 1 has been updated.