Page 1 Keysight E364xA Dual Output DC Power Supplies User’s and Service Guide...
Page 4 Notices Warranty Safety Notices © Keysight Technologies, 2000 - 2014 No part of this manual may be reproduced in The material contained in this document is any form or by any means (including elec- provided “as is,” and is subject to change,...
Page 5 Safety Symbols The following symbols on the instrument and in the documentation indicate precautions which must be taken to maintain safe operation of the instrument. Caution, risk of danger (refer to this manual In position of a bi-stable push control for specific Warning or Caution information) Terminal is at earth potential.
Page 6 Keysight Technologies assumes no liability for the customer’s failure to comply with these requirements. • Use the device with the cables provided with the shipment.
Page 7 • Do not use MAINS supply cords by inadequately RATED cord. WA R N I N G Always use the MAINS supply cord provided by the manufacturer. • Do not use the device if it appears damaged or defective. REMOVE POWER and do not use the device until safe operation is verified by service-trained personnel.
Page 8 Safety and EMC Requirements This power supply is designed to comply with the following safety and Electromagnetic Compatibility (EMC) requirements: • IEC61326-1:2005/EN61326-1:2006 • Canada: ICES/NMB-001: Issue 4, June 2006 • Australia/New Zealand: AS/NZS CISPR11:2004 • IEC 61010-1:2001/EN 61010-1:2001 • Canada: CAN/CSA-C22.2 No. 61010-1-04 •...
Page 9 Regulatory Markings The C-tick mark is a registered The CE mark is a registered trademark trademark of the Spectrum of the European Community. This CE Management Agency of Australia. This mark shows that the product complies signifies compliance with with all the relevant European Legal the Australia EMC Framework Directives.
Page 10 Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC This instrument complies with the WEEE Directive (2002/96/EC) marking requirement. This affixed product label indicates that you must not discard this electrical or electronic product in domestic household waste. Product Category: With reference to the equipment types in the WEEE directive Annex 1, this instrument is classified as a “Monitoring and Control Instrument”...
Page 11 Declaration of Conformity (DoC) The Declaration of Conformity (DoC) for this instrument is available on the Keysight Web site. You can search the DoC by its product model or description at the Web address below. http://www.keysight.com/go/conformity If you are unable to search for the respective DoC, contact your local N O T E Keysight representative.
Page 12 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. E364xA User’s and Service Guide...
Page 13: Table Of Contents
Table of Contents Getting Started Introduction Standard Shipped Items Options Accessories Preparing the Power Supply Checking the power supply Connecting power to the power supply Checking the output Converting line voltage Rack-mounting the power supply Product at a Glance Front panel Rear panel Display annunciators Output Connections...
Page 14 Constant Voltage Operation Front panel operation Remote interface operation Constant Current Operation Front panel operation Remote interface operation Track Mode Operation Front panel operation Remote interface operation View Menu Operation Changing the display mode Viewing the errors Viewing the firmware revision Viewing the calibration string Configuring the Remote Interface GPIB configuration...
Page 15 Error conditions Firmware revision query SCPI language version GPIB Interface Reference RS-232 Interface Reference RS-232 configuration overview RS-232 data frame format Connection to a computer or terminal RS-232 troubleshooting Calibration Calibration security To unsecure for calibration To secure against calibration To change the security code Calibration count Calibration message...
Page 16 Selecting a trigger source Power supply programming ranges Using the APPLy Command APPLy {<voltage>| DEF | MIN | MAX}[,{<current>| DEF | MIN | MAX}] APPLy? Output Settings and Operation Commands Triggering Commands Trigger source choices Triggering commands System-Related Commands State Storage Commands Calibration Commands Calibration example Interface Configuration Commands...
Page 17 Halting an Output in Progress SCPI Conformance Information SCPI confirmed commands Device-specific commands IEEE-488 Conformance Information Dedicated hardware lines Addressed commands IEEE-488.2 common commands Error Messages Overview Front panel operation Remote interface operation Execution Error Messages Self-Test Error Messages Calibration Error Messages Application Programs Overview Example Program for C and C++...
Page 18 Parallel connections Remote Programming Characteristics and Specifications Physical Characteristics Environmental Characteristics Electrical Specifications Supplemental Characteristics Service and Maintenance Overview Operating Checklist Types of Service Available Standard repair service (worldwide) Repacking for Shipment Electrostatic Discharge (ESD) Precautions Surface Mount Repair Replacing the Power-Line Fuse Troubleshooting Hints Unit reports errors 740 to 755 Unit fails self-test...
Page 19 Test Considerations Operation Verification and Performance Tests Operation verification tests Performance tests Measurement Techniques Common test setup Current-monitoring resistor General measurement techniques Electronic load Programming Constant Voltage (CV) Verifications Constant voltage test setup Voltage programming and readback accuracy CV load effect (load regulation) CV source effect (line regulation) CV PARD (ripple and noise) Load transient response time...
Page 20 Front panel voltage and current calibration Calibration Record Calibration Error Messages Component Locator Diagram Component locator diagram for the main board assembly — Component locator diagram for the main board assembly — bottom Component locator diagram for the digital board assembly — Component locator diagram for the digital board assembly —...
Page 21 List of Figures Figure 1-1 Rear output terminals 5 Figure 1-2 Line voltage selector (set for 115 Vac) 12 Figure 1-3 Front panel 17 Figure 1-4 Voltage and current limit settings 19 Figure 1-5 Rear panel 20 Figure 1-6 Display annunciators 21 Figure 1-7 Remote voltage sensing connections 26 Figure 2-1 Recommended protection circuit for battery charging 49...
Page 22 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. E364xA User’s and Service Guide...
Page 23 List of Tables Table 1-1 E364xA options 6 Table 1-2 E364xA accessories 7 Table 1-3 E364xA power-line fuse 9 Table 1-4 Front panel overview 17 Table 1-5 Rear panel overview 20 Table 1-6 Display annunciators overview 21 Table 1-7 Wire rating 23 Table 2-1 Factory-setting security codes 62 Table 3-1 SCPI command summary 69 Table 3-2 Keysight E364xA programming ranges 82...
Page 24 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. XXII E364xA User’s and Service Guide...
Page 25: Getting Started
E364xA Dual Output DC Power Supplies User’s and Service Guide Getting Started Introduction 2 Standard Shipped Items 6 Preparing the Power Supply 8 Product at a Glance 17 Output Connections 23 Operating the Power Supply 30 This chapter guides you to set up your power supply for the first time.
Page 26: Introduction
Getting Started Introduction Introduction The Keysight E3646A/E3647A (30 W) and E3648A/E3649A (50 W) are high performance dual output dual range programmable DC power supplies with GPIB and RS- 232 interfaces. The combination of bench- top and system features in these power supplies provides versatile solutions for your design and test requirements.
Page 27 Getting Started Introduction The E364xA power supplies feature a combination of programming capabilities and linear power supply performance that makes them ideal for power systems applications. The E364xA power supplies may be programmed locally from the front panel or remotely over the GPIB and RS- 232 interfaces.
Page 28 Getting Started Introduction • Viewing the errors, calibration string, or system firmware revision • Enabling or disabling the Tracking mode • Calibrating the power supply, including changing the calibration secure code • Configuring the remote interface • Enabling or disabling the output When operated over the remote interface, the E364xA power supplies can be both a listener and a talker.
Page 29: Figure 1-1 Rear Output Terminals
Getting Started Introduction Floating the power supply output at more than ±60 Vdc from the WA R N I N G chassis presents an electric shock hazard to the user. Do not float the outputs at more than ±60 Vdc when uninsulated sense wires are used to connect the (+) output to the (+) sense and the (–) output to the (–) sense terminals on the back of the unit.
Page 30: Standard Shipped Items
Getting Started Standard Shipped Items Standard Shipped Items Verify that you have received the following items in the shipment of your power supply. If anything is missing or damaged, contact your nearest Keysight Sales Office. ✔ Power cord ✔ Certificate of Calibration ✔...
Page 31: Accessories
Getting Started Standard Shipped Items Accessories The accessories listed below may be ordered from your local Keysight Sales Office either with the power supply or separately. Table 1-2 E364xA accessories Part number Description 10833A GPIB cable, 1 m (3.3 ft.) 10833B GPIB cable, 2 m (6.6 ft.) 34398A...
Page 32: Preparing The Power Supply
Getting Started Preparing the Power Supply Preparing the Power Supply Checking the power supply 1 Check the shipped items. Verify that you have received the items listed in “Standard Shipped Items” on page 6. If anything is missing or damaged, contact your nearest Keysight Sales Office. 2 Connect the power cord and turn on the power supply.
Page 33: Connecting Power To The Power Supply
Table 1-3 E364xA power-line fuse Model Keysight part number Part description E3646A 2110-1550 Fuse 2.5 A T 125 V for 100 Vac and 115 Vac E3647A 2110-1346 Fuse 1 A T 250 V for 230 Vac...
Page 34: Checking The Output
The OVP1, OVP2, OUT1, and low voltage range indication annunciators turn on (for example, the 8 V annunciator turns on for the E3646A model), and the knob is selected for the voltage control. Output 2 Enable the outputs.
Page 35 Getting Started Preparing the Power Supply Current output check The following steps check the basic current functions with a short across the power supply’s output. Power 1 Turn on the power supply. Make sure that the output is disabled. The OFF annunciator is turned on.
Page 36: Converting Line Voltage
Getting Started Preparing the Power Supply Converting line voltage Shock Hazard Operating personnel must not remove the power WA R N I N G supply covers. Component replacement and internal adjustments must be made only by qualified service personnel. Line voltage conversion is accomplished by adjusting two components: the line voltage selection switch and the power- line fuse on the rear panel.
Page 37 Getting Started Preparing the Power Supply Replace the power-line fuse 1 Remove the power cord, and remove the fuse- holder assembly from the rear panel with a flat- blade screwdriver. 2 Remove the fuse- holder from the assembly. 3 Replace with the correct fuse. E364xA User’s and Service Guide...
Page 38: Rack-Mounting The Power Supply
Instructions and mounting hardware are included with each rack- mounting kit. Any Keysight System II instrument of the same size can be rack- mounted beside the Keysight E3646A, E3647A, E3648A, or E3649A. Remove the front and rear rubber bumpers before rack-mounting N O T E the instrument.
Page 39 Getting Started Preparing the Power Supply 1 To remove the front bumper, stretch a corner and then slide it off. 2 To remove the rear bumper, pull the bumper off from the top as there are potrusions on the sides and bottom of the cover.
Page 40 Getting Started Preparing the Power Supply 5 To install two instruments in a sliding support shelf, order the support shelf (5063- 9256) and the slide kit (1494- 0015). E364xA User’s and Service Guide...
Page 41: Product At A Glance
Getting Started Product at a Glance Product at a Glance Front panel Figure 1-3 Front panel Table 1-4 Front panel overview Item Description Output 1 selection key Select the output 1 voltage and current to be controlled and monitored on the display. Output 2 selection key Select the output 2 voltage and current to be controlled and monitored on the display.
Page 42 Getting Started Product at a Glance Table 1-4 Front panel overview (continued) Item Description Low voltage range selection key Select the low voltage range and allow its full rated output to the output terminals. High voltage range selection key Select the high voltage range and allow its full rated output to the output terminals.
Page 43: Figure 1-4 Voltage And Current Limit Settings
Getting Started Product at a Glance Voltage and current limit settings You can set the voltage and current limit values from the front panel using the following method. High Figure 1-4 Voltage and current limit settings 1 Select the desired output and voltage range using the output selection keys and the voltage range selection keys after turning on the power supply.
Page 44: Rear Panel
Getting Started Product at a Glance Rear panel Figure 1-5 Rear panel Table 1-5 Rear panel overview Description AC inlet Power-line fuse-holder assembly Power-line module Output 1 rear output terminals Output 2 rear output terminals E364xA User’s and Service Guide...
Page 45: Display Annunciators
Getting Started Product at a Glance Table 1-5 Rear panel overview (continued) Description GPIB (IEEE-488) interface connector RS-232 interface connector Display annunciators Figure 1-6 Display annunciators Table 1-6 Display annunciators overview Item Description Adrs The power supply is addressed to listen or talk over a remote interface. The power supply is in the remote interface mode.
Page 46 The power supply is in the constant current mode. TRACK The output1 and output2 are in the track mode. [1] For E3646A and E3648A power supplies. [2] For E3647A and E3649A power supplies. Display To review the display annunciators, hold down...
Page 47: Output Connections
Getting Started Output Connections Output Connections Before attempting to connect wires to the rear output terminals, make C A U T I O N sure to turn off the power supply first to avoid damage to the circuits being connected. Front panel binding posts are available to connect load wires for bench operation and are paralleled with the rear panel (+) and (–) connections.
Page 48: Voltage Drops
Getting Started Output Connections To satisfy safety requirements, load wires must be heavy enough not to N O T E overheat when carrying the maximum short-circuit output current of the power supply. If there is more than one load, then any pair of load wires must be capable of safely carrying the full-rated current of the power supply.
Page 49 Getting Started Output Connections Inductive loading Inductive loads present no loop stability problems in the constant voltage mode. In the constant current mode, inductive loads form a parallel resonance with the power supply’s output capacitor. Generally this will not affect the stability of the power supply, but it may cause ringing of the current in the load.
Page 50: Remote Voltage Sensing Connections
Getting Started Output Connections Remote voltage sensing connections Remote voltage sensing is used to maintain regulation at the load and reduce the degradation of regulation that would occur due to the voltage drop in the leads between the power supply and the load. When the power supply is connected for remote sensing, the OVP circuit senses the voltage at the sensing points (load) and not the output terminals.
Page 51 Getting Started Output Connections Stability Using remote sensing under certain combinations of load lead lengths and large load capacitances may cause your application to form a filter, which becomes part of the voltage feedback loop. The extra phase shift created by this filter can degrade the power supply’s stability, resulting in poor transient response or loop instability.
Page 52 Getting Started Output Connections Output rating The rated output voltage and current specifications in Chapter 7 apply at the output terminals of the power supply. With remote sensing, any voltage dropped in the load leads must be added to the load voltage to calculate the maximum output voltage.
Page 53: Multiple Loads
Getting Started Output Connections Multiple loads When connecting multiple loads to the power supply, each load should be connected to the output terminals using separate connecting wires. This minimizes mutual coupling effects between loads and takes full advantage of the low output impedance of the power supply.
Page 54: Operating The Power Supply
Getting Started Operating the Power Supply Operating the Power Supply Cooling The power supply can operate at the rated specifications within the temperature range of 0 °C to 40 °C. A fan cools the power supply by drawing air through the sides and exhaust it out the back.
Page 55 E364xA Dual Output DC Power Supplies User’s and Service Guide Operation and Features Overview 32 Constant Voltage Operation 34 Constant Current Operation 36 Track Mode Operation 38 View Menu Operation 40 Configuring the Remote Interface 42 Storing and Recalling Operating States 44 Programming the Overvoltage Protection 46 Disabling the Output 50 System-Related Operations 52...
Page 56: Operation And Features
Operation and Features Overview Overview The following section describes an overview of the front panel keys before operating your power supply. • The power supply is shipped from the factory configured in the front panel operation mode. When in this mode, the front panel keys can be used.
Page 57 Operation and Features Overview • The display provides the present operating status of the power supply with annunciators and also informs you of error codes. For example, the power supply is operating in the CV mode in the 8 V/3 A range and controlled from the front panel, then the CV and 8 V annunciators will turn on.
Page 58: Constant Voltage Operation
The low voltage range is selected and the annunciator for the range presently selected turns on, for example, the 8V annunciator turns on for the E3646A model. The knob is selected for voltage control. At power- on, the output1 is selected and the OUT1 annunciator turns on.
Page 59 Operation and Features Constant Voltage Operation 4 Adjust the knob for the desired current limit. Voltage Current Check that the Limit annunciator still flashes. Set the knob for current control. The flashing digit can be changed using the resolution selection keys and the flashing digit can be adjusted by turning the knob.
Page 60: Remote Interface Operation
Its low voltage range is selected and the annunciator for the range presently selected turns on. For example, the 8V annunciator turns on for the E3646A model. The knob is selected for voltage control. At power- on, the output1 is selected and the OUT1 annunciator turns on.
Page 61 Operation and Features Constant Current Operation In constant current mode, the current values between the meter mode and N O T E limit mode are the same, but the voltage values are not. Moreover, if the display is in the meter mode, you cannot see the change of voltage limit value when adjusting the knob.
Page 62: Remote Interface Operation
Operation and Features Track Mode Operation During actual CC operation, if a load change causes the voltage limit to be N O T E exceeded, the power supply will automatically crossover to constant voltage mode at the preset voltage limit and the output current will drop proportionately.
Page 63: Front Panel Operation
Operation and Features Track Mode Operation Front panel operation 1 Set either the output1 or the output2 supply to the desired voltage. 2 Enable the track mode. Track HOLD_KEY until the Track annunciator turns on. For Hold down Track example, when the track mode is first enabled with the output1 selected, the output2 supply will be set to the same voltage level as the output1 supply.
Page 64: View Menu Operation
Operation and Features View Menu Operation View Menu Operation From the View menu, you can read the errors, firmware revision, and calibration string. In addition, you can change the front panel display mode to V- V display, I- I display, or V- I display as desired.
Page 65: Viewing The Errors
Operation and Features View Menu Operation Viewing the errors 1 Press twice to view the errors. View View 1: ERR -103 The total number of the errors detected will be displayed shortly before the above message is displayed. The above number 1 stands for the first error in queue and the -103 is the error code.
Page 66: Viewing The Calibration String
Operation and Features Configuring the Remote Interface Viewing the calibration string 1 Enter the View menu and select CAL STRING. View CAL STRING 2 Scroll through the text of the message. View FACTORY CAL 26/11/12 NO STRING is displayed if no calibration message is stored. >...
Page 67: Gpib Configuration
Operation and Features Configuring the Remote Interface GPIB configuration 1 Turn on the remote configuration mode. Config GPIB / 488 If RS-232 appears, select GPIB / 488 by turning the knob. 2 Select the GPIB address. Config ADDR 05 You can set the power supply’s address to any value between 0 and 30.
Page 68: Storing And Recalling Operating States
Operation and Features Storing and Recalling Operating States 4 Select the parity and number of stop bits. Config Select one of the following: None (8 data bits, factory setting), Odd (7 data bits), or Even (7 data bits). When you set the parity, you are also indirectly setting the number of the data bits.
Page 69 Operation and Features Storing and Recalling Operating States 2 Turn on the storage mode. Store STORE STATE From the front panel, you can assign names (up to nine characters) to each of the five stored states. Turn the knob until NAME STATE appears and press Store to select the locations.
Page 70: Remote Interface Operation
Operation and Features Programming the Overvoltage Protection Remote interface operation Use the following commands to store and recall the power supply state. Store an operating state to *SAV {1|2|3|4|5} a specified location. Recall a previously stored *RCL {1|2|3|4|5} state from a specified location.
Page 71 Programming the Overvoltage Protection 3 Enter the OVP menu and set the desired trip level. Over Voltage LEVEL 22.0 V (E3646A) < Use the knob and the resolution selection key > to set the desired trip level. Note that you cannot set the trip levels to lower than 1.0 V.
Page 72 Operation and Features Programming the Overvoltage Protection • By adjusting the output voltage level Display i Lower the output voltage level below the OVP trip point. Limit The OVP1 or OVP2, and Limit annunciators are flashing Display after is pressed. Limit Over ii Check that you lowered the voltage level below the OVP...
Page 73: Remote Interface Operation
Operation and Features Programming the Overvoltage Protection Remote interface operation Set the OVP level. VOLT:PROT {<voltage>|MIN|MAX} Disable or enable the VOLT:PROT:STAT {OFF|ON) OVP circuit. Clear the tripped VOLT:PROT:CLE OVP circuit. The power supply’s OVP circuit contains a crowbar SCR, which effectively N O T E shorts the output of the power supply whenever the overvoltage condition occurs.
Page 74: Disabling The Output
Operation and Features Disabling the Output Disabling the Output The output of the power supply can be disabled or enabled from the front panel. • When the power supply is in the Off state, the OFF annunciator turns on and the output is disabled. The OFF annunciator turns off when the power supply returns to the On state.
Page 75: Disconnecting The Output Using An External Relay
Operation and Features Disabling the Output Disconnecting the output using an external relay To disconnect the output, an external relay must be connected between the output and the load. A TTL signal of either low true or high true is provided to control an external relay.
Page 76: System-Related Operations
Operation and Features System-Related Operations System-Related Operations This section gives information on system- related topics such as storing power supply states, reading errors, running a self- test, displaying messages on the front panel, and reading firmware revisions. State storage The power supply has five storage locations in non- volatile memory to store power supply states.
Page 77: Self-Test
Operation and Features System-Related Operations Front panel operation STORE STATE, NAME STATE, EXIT Store To reset the power supply to the power- on reset state without using the *RST command or turning power off/on, select RESET from the following. 5 states, RESET, EXIT Recall Remote interface operation Use the following commands to store and recall power...
Page 78: Error Conditions
Operation and Features System-Related Operations If the complete self- test is successful, PASS is displayed on the front panel. If the self- test fails, FAIL is displayed and the ERROR annunciator turns on. Refer to Chapter 8, “Service and Maintenance” for instructions on returning the power supply to Keysight for service.
Page 79: Scpi Language Version
Remote interface operation *IDN? The above command returns a string in the form: Keysight Technologies,E3646A,0,X.X-Y.Y-Z.Z (E3646A) Be sure to dimension a string variable with at least 40 characters. SCPI language version This power supply complies with the rules and regulations of the present version of Standard Commands for Programmable Instruments (SCPI).
Page 80: Gpib Interface Reference
Operation and Features GPIB Interface Reference GPIB Interface Reference The GPIB connector on the rear panel connects your power supply to the computer and other GPIB devices. Chapter 1, “Accessories” lists the cables that are available from Keysight. A GPIB system can be connected together in any configuration (star, linear, or both) as long as the following rules are observed: Each device on the GPIB (IEEE- 488) interface must have a...
Page 81: Rs-232 Interface Reference
Operation and Features RS-232 Interface Reference RS-232 Interface Reference The power supply can be connected to the RS- 232 interface using the 9- pin (DB- 9) serial connector on the rear panel. The power supply is configured as a Data Terminal Equipment (DTE) device.
Page 82: Rs-232 Data Frame Format
Operation and Features RS-232 Interface Reference RS-232 data frame format A character frame consists of all the transmitted bits that make up a single character. The frame is defined as the characters from the start bit to the last stop bit, inclusively. Within the frame, you can select the baud rate, number of data bits, and parity type.
Page 83: Figure 2-2 Db-9 Serial Connection
Operation and Features RS-232 Interface Reference The cable and adapter diagrams as shown in Figure 2- 2 Figure 2- 3 can be used to connect the power supply to most computers or terminals. DB-9 serial connection If your computer or terminal has a 9- pin serial port with a male connector, use the null- modem cable included with the Keysight 34398A Cable Kit.
Page 84: Rs-232 Troubleshooting
Operation and Features RS-232 Interface Reference 5182-4794 5181-6641 Cable Adapter Instrument DB25 DB25 Female Male Female Female Male Male Figure 2-3 DB-25 serial connection RS-232 troubleshooting Here are a few things to check if you are having problems communicating over the RS- 232 interface. If you need additional help, refer to the documentation that came with your computer.
Page 85: Calibration
For example, the security code for E3646A has less than nine characters. If you forget your security code, you can disable the security feature by N O T E adding a jumper inside the power supply and then enter a new code.
Page 86: To Unsecure For Calibration
Operation and Features Calibration Table 2-1 Factory-setting security codes Model Security code E3646A 003646 E3647A 003647 E3648A 003648 E3649A 003649 To unsecure for calibration You can unsecure the power supply either from the front panel or over the remote interface. The power supply is secured when shipped from the factory.
Page 87: To Secure Against Calibration
To unsecure the power supply, send the above command with the same code used to secure. For example: CAL:SEC:STAT OFF, ‘003646’ (E3646A model) To secure against calibration You can secure the power supply against calibration either from the front panel or over the remote interface. The power supply is secured when shipped from the factory.
Page 88: To Change The Security Code
To secure the power supply, send the above command with the same code as used to unsecure. For example, CAL:SEC:STAT ON, ‘003646’ (E3646A model) To change the security code To change the security code, you must first unsecure the power supply, and then enter a new code.
Page 89: Calibration Count
Operation and Features Calibration Remote interface operation Change the security CAL:SEC:CODE <new code> code. To change the security code, first unsecure the power supply using the old security code. Then, enter the new code as shown below. CAL:SEC:STAT OFF, ‘003646’ Unsecure with the old code.
Page 90: Calibration Message
Operation and Features Calibration Calibration message The power supply allows you to store one message in calibration memory in the mainframe. For example, you can store such information as the date when the last calibration was performed, the date when the next calibration is due, the power supply’s serial number, or even the name and phone number of the person to contact for a new calibration.
Page 91: Remote Interface Reference
E364xA Dual Output DC Power Supplies User’s and Service Guide Remote Interface Reference SCPI Command Summary 68 Introduction to the SCPI Language 74 Simplified Programming Overview 80 Using the APPLy Command 83 Output Settings and Operation Commands 84 Triggering Commands 92 System-Related Commands 95 State Storage Commands 99 Calibration Commands 101...
Page 92: Scpi Command Summary
Remote Interface Reference SCPI Command Summary SCPI Command Summary If you are a first-time user of the SCPI language, refer to “Introduction to N O T E the SCPI Language” “Simplified Programming Overview” to familiarize with the SCPI language before attempting to program the power supply. This section summarizes the Standard Commands for Programmable Instruments (SCPI) available to program the power supply over the remote interface.
Page 93: Table 3-1 Scpi Command Summary
Remote Interface Reference SCPI Command Summary Table 3-1 SCPI command summary Output Settings and Operation Commands APPLy {<voltage>|DEF|MIN|MAX}[,{<current>|DEF|MIN|MAX}] APPLy? [SOURce:] CURRent[:LEVel][:IMMediate][:AMPLitude] {<current>|MIN|MAX|UP|DOWN} CURRent[:LEVel][:IMMediate][:AMPLitude]? [MIN|MAX] CURRent[:LEVel][:IMMediate]:STEP[:INCRement] {<numeric value>|DEFault} CURRent[:LEVel][:IMMediate]:STEP[:INCRement]? [DEFault] CURRent[:LEVel]:TRIGgered[:AMPLitude] {<current>|MIN|MAX} CURRent[:LEVel]:TRIGgered[:AMPLitude]? [MIN|MAX] VOLTage[:LEVel][:IMMediate][:AMPLitude] {<voltage>|MIN|MAX|UP|DOWN} VOLTage[:LEVel][:IMMediate][:AMPLitude]? [MIN|MAX] VOLTage[:LEVel][:IMMediate]:STEP[:INCRement] {<numeric value>|DEFault} VOLTage[:LEVel][:IMMediate]:STEP[:INCRement]? [DEFault] VOLTage[:LEVel]:TRIGgered[:AMPLitude] {<voltage>|MIN|MAX} VOLTage[:LEVel]:TRIGgered[:AMPLitude]? [MIN|MAX]...
Page 94 Remote Interface Reference SCPI Command Summary Table 3-1 SCPI command summary (continued) Triggering Commands INITiate[:IMMediate] TRIGger[:SEQuence] :DELay {<seconds>|MIN|MAX} :DELay? [MIN|MAX] :SOURce {BUS|IMM} :SOURce? *TRG System-Related Commands DISPlay[:WINDow] [:STATe] {OFF|ON} [:STATe]? :MODE {VV|VI|II} :MODE? :TEXT[:DATA] <quoted string> :TEXT[:DATA]? :TEXT:CLEar SYSTem :BEEPer[:IMMediate] :ERRor? :VERSion? OUTPut...
Page 95 Remote Interface Reference SCPI Command Summary Table 3-1 SCPI command summary (continued) Calibration Commands CALibration :COUNt? :CURRent[:DATA] <numeric value> :CURRent:LEVel {MIN|MID|MAX} :SECure:CODE <new code> :SECure:STATe {OFF|ON}, <quoted code> :SECure:STATe? :STRing <quoted string> :STRing? :VOLTage[:DATA] <numeric value> :VOLTage:LEVel {MIN|MID|MAX} :VOLTage:PROTection Interface Configuration Commands SYSTem :INTerface {GPIB|RS232} :LOCal...
Page 96 Remote Interface Reference SCPI Command Summary Table 3-1 SCPI command summary (continued) Status Reporting Commands STATus:QUEStionable [:EVENt]? :ENABle <enable value> :ENABle? :INSTrument [:EVENt]? :ENABle <enable value> :ENABle? :ISUMmary<n> [:EVENt]? :CONDition? :ENABle <enable value> :ENABle? SYSTem:ERRor? *CLS *ESE <enable value> *ESE? *ESR? *OPC *OPC?
Page 97 *ESE <enable value> *ESE? *IDN? *OPC *OPC? *PSC {0|1} *PSC? *RST *SAV {1|2|3|4|5} *RCL {1|2|3|4|5} *STB? *SRE <enable value> *SRE? *TRG *TST? *WAI [1] Applicable for E3646A and E3648A only. [2] Applicable for E3647A and E3649A only. E364xA User’s and Service Guide...
Page 98: Introduction To The Scpi Language
Remote Interface Reference Introduction to the SCPI Language Introduction to the SCPI Language Standard Commands for Programmable Instruments (SCPI) is an ASCII- based instrument command language designed for test and measurement instruments. Refer to “Simplified Programming Overview” for an introduction to the basic techniques used to program the power supply over the remote interface.
Page 99: Command Format Used In This Manual
Remote Interface Reference Introduction to the SCPI Language Command format used in this manual The format used to show commands in this manual is shown below: CURRent {<current>|MINimum|MAXimum|UP|DOWN} The command syntax shows most commands (and some parameters) as a mixture of upper- case and lower- case letters.
Page 100: Command Separators
Remote Interface Reference Introduction to the SCPI Language Some portions of commands are enclosed in square brackets ([]). The brackets indicate that this portion of the command is optional. Most optional portions of the command are not shown in the command description. For the full command showing all the options, refer to Table 3- A colon (:) separates a command keyword from a...
Page 101: Using The Min And Max Parameters
Remote Interface Reference Introduction to the SCPI Language Using the MIN and MAX parameters You can substitute MINimum or MAXimum in place of a parameter for many commands. For example, consider the following command: CURRent {<current>|MIN|MAX} Instead of selecting a specific current, you can substitute MINimum to set the current to its minimum value or MAXimum to set the current to its maximum value.
Page 102: Scpi Command Terminators
Remote Interface Reference Introduction to the SCPI Language SCPI command terminators A command string sent to the power supply must terminate with a <new line> character. The IEEE- 488 EOI (end- or- identify) message is interpreted as a <new line> character and can be used to terminate a command string in place of a <new line>...
Page 103 Remote Interface Reference Introduction to the SCPI Language You can also send engineering unit suffixes (V, A, or SEC) with numeric parameters. If only specific numeric values are accepted, the power supply will automatically round the input numeric parameters. The following command uses a numeric parameter: CURR {<current>|MIN|MAX|UP|DOWN} Discrete parameters...
Page 104: Simplified Programming Overview
Remote Interface Reference Simplified Programming Overview Simplified Programming Overview This section gives an overview of the basic techniques used to program the power supply over the remote interface. This section is only an overview and does not give all of the details you will need to write your own application programs.
Page 105: Reading A Query Response
Remote Interface Reference Simplified Programming Overview Reading a query response Only the query commands (commands that end with “?”) will instruct the power supply to send a response message. Queries return either output values or internal instrument settings. For example, the following statements executed from your computer will read the power supply’s error queue and print the most recent error: Dimension string array (80...
Page 106: Power Supply Programming Ranges
MINimum, MAXimum, DEFault, and reset values of your power supply. Refer to Table 3- 2 to identify the programming values when programming the power supply. Table 3-2 Keysight E364xA programming ranges E3646A E3647A E3648A E3649A 0 to 8 V 0 to 20 V 0 to 35 V...
Page 107: Using The Apply Command
The voltage and current are returned in sequence as shown in the sample string below (the quotation marks are returned as part of the string). “8.00000,3.00000” (E3646A model) E364xA User’s and Service Guide...
Page 108: Output Settings And Operation Commands
Remote Interface Reference Output Settings and Operation Commands Output Settings and Operation Commands This section describes low- level commands used to program the power supply. Although the APPLy command provides the most straightforward method to program the power supply, the low- level output setting commands give you more flexibility to change the individual parameters.
Page 109 To set the step size to the minimum resolution, set the step size to DEFault. The minimum resolution of the step size is approximately 0.052 mA (E3646A), 0.014 mA (E3647A), 0.095 mA (E3648A), and 0.027 mA (E3649A), respectively. The CURR:STEP? DEF returns the minimum resolution of your instrument.
Page 110 Remote Interface Reference Output Settings and Operation Commands Set the step size to 0.02 A. CURR:STEP 0.02 Decrease the output current. CURR DOWN INSTrument[:SELect] {OUTPut1|OUTPut2|OUT1|OUT2} This command selects the output to be programmed by the output identifier. The outputs of the power supply are considered as two logical instruments.
Page 111 Remote Interface Reference Output Settings and Operation Commands INSTrument:COUPle[:TRIGger] {ON|OFF} Enable or disable a coupling between two logical outputs of the power supply. The couple command consists of an optional subsystem node followed by a signal parameter. The only valid parameter for the optional subsystem node is the TRIGger subsystem.
Page 112 Remote Interface Reference Output Settings and Operation Commands MEASure:CURRent? Query the current measured across the current sense resistor inside the power supply. MEASure[:VOLTage]? Query the voltage measured at the sense terminals of the power supply. OUTPut:TRACk[:STATe] {ON|OFF} This command enables or disables the power supply to operate in the track mode.
Page 113 To set the step size to the minimum resolution, set the step size to DEFault. The minimum resolution of the step size is approximately 0.35 mV (E3646A), 1.14 mV (E3647A), 0.38 mV (E3648A), and 1.14 mV (E3649A), respectively. The immediate voltage level increases or decreases by the value of the step size.
Page 114 Remote Interface Reference Output Settings and Operation Commands VOLTage:TRIGgered? [MINimum|MAXimum] Query the triggered voltage level presently programmed. If no triggered level is programmed, the VOLT level is returned. VOLTage:PROTection {<voltage>|MINimum|MAXimum} Set the voltage level at which the overvoltage protection (OVP) circuit will trip. If the peak output voltage exceeds the OVP level, then the power supply output is shorted by an internal SCR.
Page 115 For example, P20V or HIGH is the identifier for the 20 V/1.5 A range and P8V or LOW is for the 8 V/3 A range (for the E3646A model). At *RST, the low voltage range is selected. VOLTage:RANGe? Query the currently selected range. The returned parameter is P8V or P35V for the low voltage range, or P20V or P60V for the high voltage range.
Page 116: Triggering Commands
Remote Interface Reference Triggering Commands Triggering Commands The power supply’s triggering system allows a change in voltage and current when receiving a trigger, to select a trigger source, and to insert a trigger. Triggering the power supply is a multi- step process. 1 First, you must specify the source from which the power supply will accept the trigger.
Page 117 Remote Interface Reference Triggering Commands • To trigger the power supply from the remote interface (GPIB or RS- 232) after selecting the bus source, send the *TRG (trigger) command. When the *TRG command is sent, the trigger action starts after the specified time delay if any delay is given.
Page 118: Triggering Commands
Remote Interface Reference Triggering Commands Triggering commands INITiate Cause the trigger system to initiate. This command completes one full trigger cycle when the trigger source is an immediate and initiates the trigger subsystem when the trigger source is bus. TRIGger:DELay {<seconds>|MINimum|MAXimum} Set the time delay between the detection of an event on the specified trigger source and the start of any corresponding trigger action on the power supply output.
Page 119: System-Related Commands
Remote Interface Reference System-Related Commands System-Related Commands DISPlay {OFF|ON} Turn the front panel display off or on. When the display is turned off, outputs are not sent to the display and all annunciators are disabled except the ERROR annunciator. The display state is automatically turned on when you Store return to the local mode.
Page 120 Remote Interface Reference System-Related Commands DISPlay:TEXT? Query the message sent to the front panel and returns a quoted string. DISPlay:TEXT:CLEar Clear the message displayed on the front panel. OUTPut {OFF|ON} Enable or disable the outputs of the power supply. When the output is disabled, the voltage value is 0 V and the current value is 0.02 mA.
Page 121: Example Program For Excel
The command returns a string with the following format (be sure to dimension a string variable with at least 40 characters): Keysight Technologies,E3646A,0,X.X-Y.Y-Z.Z (E3646A model) *TST? Perform a complete self- test of the power supply. Returns 0 if the self- test passes or 1 or any non- zero value if it fails.
Page 122: Table 3-3 Power Supply State
Table 3- 3 shows the state of the power supply after a RESET from the Recall menu or *RST command from the remote interface. Table 3-3 Power supply state Command E3646A state E3647A state E3648A state E3649A state 0.8 A 1.4 A...
Page 123: State Storage Commands
Remote Interface Reference State Storage Commands State Storage Commands The power supply has five storage locations in non- volatile memory to store power supply states. The locations are numbered 1 through 5. You can also assign a name to each of the locations (1 through 5) for use from the front panel.
Page 124 Remote Interface Reference State Storage Commands MEMory:STATe:NAME {1|2|3|4|5}, <quoted name> MEMory:STATe:NAME? {1|2|3|4|5} Assign a name to the specified storage location. From the remote interface, you can only recall a stored state using a number (1 through 5). The :NAME? query returns a quoted string containing the name currently assigned to the specified storage location.
Page 125: Calibration Commands
Remote Interface Reference Calibration Commands Calibration Commands Refer to “Calibration” on page 61 for an overview of the calibration features of the power supply. An example program for calibration is listed in “Calibration example” on page 104. For more detailed discussion on the calibration procedures, refer to the “Service and Maintenance”...
Page 126 Remote Interface Reference Calibration Commands CALibration:CURRent:LEVel {MINimum|MIDdle|MAXimum} This command can only be used after calibration is unsecured and the output state is ON. It sets the power supply to a calibration point that is entered with the CAL:CURR command. During calibration, three points must be entered and the low- end point (MIN) must be selected and entered first.
Page 127 Remote Interface Reference Calibration Commands CALibration:VOLTage[:DATA] <numeric value> This command can only be used after calibration is unsecured and the output state is ON. It enters a voltage value that you obtained by reading an external meter. You must first select the minimum calibration level (CAL:VOLT:LEV MIN) for the value being entered.
Page 128: Calibration Example
Remote Interface Reference Calibration Commands Calibration example 1 Select the output to be calibrated and enable the output of the power supply by sending the commands: INST:SEL {OUT1|OUT2} OUTP ON 2 Disable the voltage protection function. VOLT:PROT:STAT OFF 3 Unsecure the power supply with the security code before calibration.
Page 129 Remote Interface Reference Calibration Commands 13 Repeat step 5 through step 9 by substituting CURR for VOLT for current calibration. For example, CAL:CURR:LEV MIN 14 Repeat step 1 through step 13 for the other output calibration. 15 Record calibration information such as next calibration due date or contact person for future reference.
Page 130: Interface Configuration Commands
Remote Interface Reference Interface Configuration Commands Interface Configuration Commands Refer to also “Configuring the Remote Interface” on page 42 for more information. SYSTem:INTerface {GPIB|RS232} Select the remote interface. Only one interface can be enabled at a time. The GPIB interface is selected when the power supply is shipped from the factory.
Page 131: Scpi Status Registers
Remote Interface Reference SCPI Status Registers SCPI Status Registers All SCPI instruments implement status registers in the same way. The status system records various instrument conditions in three register groups: the Status Byte register, the Standard Event register, and the Questionable Status register groups.
Page 132: What Is A Multiple Logical Output
Remote Interface Reference SCPI Status Registers What is a multiple logical output? The two- logical outputs of the power supply include an INSTrument summary status register and an individual instrument ISUMmary register for each logical output. The ISUMmary registers report to the INSTrument register, which in turn reports to bit 13 of the Questionable Status register.
Page 133: Scpi Status System
Remote Interface Reference SCPI Status Registers SCPI status system QUEStionable Status Event Register Enable Registers Not Used Output Buffer Not Used Not Used Not Used Temperature Not Used "OR" Not Used Not Used Not Used Not Used Status Byte Not Used Summary Register Enable Register Not Used...
Page 134: Questionable Status Register
Remote Interface Reference SCPI Status Registers Questionable Status register The Questionable Status register provides information about unexpected operations of the power supply. Bit 4 reports a fault with the fan, and bit 13 summarizes questionable outputs for any of the two supplies. For example, if one of the two supplies is in constant voltage mode and due to an overload looses regulation, bit 13 is set (latched).
Page 135 Remote Interface Reference SCPI Status Registers Questionable instrument status register The questionable instrument register provides information about unexpected operations for each of the two supplies. For example, if the output1 supply is in the constant voltage mode and loses regulation, then bit 1 is set indicating a possible overload in the output1 supply.
Page 136: Standard Event Register
Remote Interface Reference SCPI Status Registers For example, 16 is returned when you have queried the status of the questionable event register, the temperature condition is questionable. The Questionable Status Enable register is cleared when you execute the STAT:QUES:ENAB 0 command. Standard Event register The Standard Event register reports the following types of instrument events: power- on detected, command syntax...
Page 137 Remote Interface Reference SCPI Status Registers Table 3-5 Bit definitions — Standard Event register (continued) Decimal value Definition Execution error. An execution error occurred (refer to error messages -211 to -223 in “Execution Error Messages” on page 134). Commanderror. A command syntax error occurred (refer to error messages -104 to -178 in “Execution Error Messages”...
Page 138: Status Byte Register
Remote Interface Reference SCPI Status Registers Status byte register The Status Byte summary register reports conditions from the other status registers. Query data that is waiting in the power supply’s output buffer is immediately reported through the “Message Available” bit (bit 4) of the Status Byte register.
Page 139: Using Service Request (Srq) And Serial Poll
Remote Interface Reference SCPI Status Registers The Status Byte enable register (request service) is cleared when: • you execute the *SRE 0 command. • you turn on the power and have previously configured the power supply using the *PSC 1 command. The enable register will not be cleared at power- on if you have previously configured the power supply using *PSC 0.
Page 140: Using *Stb? To Read The Status Byte
Remote Interface Reference SCPI Status Registers The IEEE-488 standard does not ensure synchronization between your C A U T I O N bus controller program and the instrument. Use the *OPC? command to guarantee that commands previously sent to the instrument have completed.
Page 141: Using Srq To Interrupt The Bus Controller
Remote Interface Reference SCPI Status Registers Using SRQ to interrupt the bus controller 1 Send a device clear message to clear the power supply’s output buffer (for example, CLEAR 705). 2 Clear the event registers with the *CLS (clear status) command.
Page 142: Using *Opc To Signal When Data Is In The Output Buffer
Remote Interface Reference SCPI Status Registers Using *OPC to signal when data is in the output buffer Generally, it is best to use the “Operation Complete” bit (bit 0) in the Standard Event register to signal when a command sequence is completed. This bit is set in the register after an *OPC command has been executed.
Page 143: Status Reporting Commands
Remote Interface Reference Status Reporting Commands Status Reporting Commands Refer to “SCPI status system” on page 109 for detailed information of the N O T E status register structure of the power supply. SYSTem:ERRor? Query the power supply’s error queue. A record of up to 20 errors is stored in the power supply’s error queue.
Page 144 Remote Interface Reference Status Reporting Commands STATus:QUEStionable:INSTrument:ENABle <enable value> Set the value of the questionable instrument enable register. This register is a mask for enabling specific bits from the questionable instrument event register to set the instrument summary bit (ISUM, bit 13) of the Questionable Status register.
Page 145 Remote Interface Reference Status Reporting Commands STATus:QUEStionable:INSTrument:ISUMmary<n>: ENABle <enable value> Set the value of the questionable instrument Isummary enable register for a specific output of the two- output power supply. The particular output must be specified by a numeric value. n is 1 or 2. 1 selects output1, and 2 selects output2.
Page 146 Remote Interface Reference Status Reporting Commands *OPC Set the “Operation Complete” bit (bit 0) of the Standard Event register after the command is executed. *OPC? Return 1 to the output buffer after the command is executed. *PSC {0|1} (Power- on status clear.) This command clears the Status Byte and the Standard Event register enable masks when power is turned on (*PSC 1).
Page 147 Remote Interface Reference Status Reporting Commands *WAI Instruct the power supply to wait for all pending operations to complete before executing any additional commands over the interface. Used only in the triggered mode. E364xA User’s and Service Guide...
Page 148: Halting An Output In Progress
Remote Interface Reference Halting an Output in Progress Halting an Output in Progress You can send a device clear at any time to stop an output in progress over the GPIB interface. The status registers, the error queue, and all configuration states are left unchanged when a device clear message is received.
Page 149: Scpi Conformance Information
Remote Interface Reference SCPI Conformance Information SCPI Conformance Information The power supply conforms to the 1996.0 version of the SCPI standard. Many of the commands required by the standard are accepted by the power supply but are not described in this manual for simplicity or clarity. Most of these non- documented commands duplicate the functionality of a command already described in this manual.
Page 150 :VOLTage[:LEVel][:IMMediate][:AMPLitude]? [MIN|MAX] :VOLTage[:LEVel][:IMMediate]:STEP[:INCRement] {<numeric value>|DEFault} :VOLTage[:LEVel][:IMMediate]:STEP[:INCRement]? {DEFault} :VOLTage[:LEVel]:TRIGgered[:AMPLitude] {<voltage>|MIN|MAX} :VOLTage[:LEVel]:TRIGgered[:AMPLitude]? [MIN|MAX] :VOLTage:PROTection[:LEVel] {<voltage>|MIN|MAX} :VOLTage:PROTection[:LEVel]? {MIN|MAX} :VOLTage:PROTection:STATe {0|1|OFF|ON} :VOLTage:PROTection:STATe? :VOLTage:PROTection:TRIPped? :VOLTage:PROTection:CLEar :VOLTage:RANGe {P8V|P20V|LOW|HIGH} (E3646A/48A models) :VOLTage:RANGe {P35V|P60V|LOW|HIGH} (E3647A/49A models) :VOLTage:RANGe? STATus :QUEStionable[:EVENt]? :QUEStionable:ENABle <enable value> :QUEStionable:ENABle? :QUEStionable:INSTrument[:EVENt]? :QUEStionable:INSTrument:ENABle <enable value> :QUEStionable:INSTrument:ENABle? :QUEStionable:INSTrument:ISUMmary<n>[:EVENt]? :QUEStionable:INSTrument:ISUMmary<n>:CONDition?
Page 151: Device-Specific Commands
Remote Interface Reference SCPI Conformance Information Device-specific commands The following commands are device- specific to your power supply. They are not included in the 1997.0 version of the SCPI standard. However, these commands are designed with the SCPI standard in mind, and they follow all of the command syntax rules defined by the standard.
Page 152: Ieee-488 Conformance Information
Remote Interface Reference IEEE-488 Conformance Information IEEE-488 Conformance Information Dedicated hardware lines Attention Interface Clear Remote Enable Service Request Enable Addressed commands Device Clear End or Identify Group Execute Trigger Go to Local Local Lockout Selected Device Clear Serial Poll Disable Serial Poll Enable E364xA User’s and Service Guide...
Page 153: Ieee-488.2 Common Commands
Remote Interface Reference IEEE-488 Conformance Information IEEE-488.2 common commands *CLS *ESE <enable value> *ESE? *ESR? *IDN? *OPC *OPC? *PSC {0|1} *PSC? *RST *SAV {1|2|3|4|5} *RCL {1|2|3|4|5} *SRE <enable value> *SRE? *STB? *TRG *TST? *WAI E364xA User’s and Service Guide...
Page 154 Remote Interface Reference IEEE-488 Conformance Information THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. E364xA User’s and Service Guide...
Page 155: Error Messages
E364xA Dual Output DC Power Supplies User’s and Service Guide Error Messages Overview 132 Execution Error Messages 134 Self-Test Error Messages 139 Calibration Error Messages 141 This chapter lists the error messages that may appear as you are working with the power supply.
Page 156: Overview
Error Messages Overview Overview Errors are retrieved in the first- in- first- out (FIFO) order. The first error returned is the first error that was stored. Errors are cleared as you read them. When you have read all errors from the queue, the ERROR annunciator turns off and the errors are cleared.
Page 157: Remote Interface Operation
Error Messages Overview Remote interface operation Read and clear one error from the SYSTem:ERRor? error queue. Errors have the following format (the error string may contain up to 80 characters). -102, “Syntax error” E364xA User’s and Service Guide...
Page 158: Execution Error Messages
Error Messages Execution Error Messages Execution Error Messages Table 4-1 Execution error messages -101 Invalid character An invalid character was found in the command string. You may have inserted a character such as #, $, or % in the command keyword or within a parameter. Example: OUTP:STAT #ON -102 Syntax error...
Page 159 Error Messages Execution Error Messages Table 4-1 Execution error messages (continued) -113 Undefined header A command was received that is not valid for this power supply. You may have misspelled the command or it may not be a valid command. If you are using the short form of the command, remember that it may contain up to four letters.
Page 160 Error Messages Execution Error Messages Table 4-1 Execution error messages (continued) -138 Suffix not allowed A suffix was received following a numeric parameter which does not accept a suffix. Example: STAT:QUES:ENAB 18 SEC (SEC is not a valid suffix.) -141 Invalid character data Either the character data element contained an invalid character or the particular element received was not valid for the header.
Page 161 Error Messages Execution Error Messages Table 4-1 Execution error messages (continued) -221 Settings conflict Indicates that a legal program data element was parsed but could not be executed due to the current device state. -222 Data out of range A numeric parameter value is outside the valid range for the command. Example: TRIG:DEL -3 -223 Too much data...
Page 162 Error Messages Execution Error Messages Table 4-1 Execution error messages (continued) -440 Query UNTERMINATED after indefinite response The *IDN? command must be the last query command within a command string. Example: *IDN?;:SYST:VERS? Isolator UART framing error Isolator UART overrun error SPI data error Data error was detected during the communication between the main controller U10 and the I/O controller U752.
Page 163: Self-Test Error Messages
Error Messages Self-Test Error Messages Self-Test Error Messages Table 4-2 Self-test error messages Front panel does not respond The main controller U17 (U10 for serial MY53xx6xxx) attempts to establish serial communications with the front panel controller U1 (U602 for serial MY53xx6xxx) on the front panel board. During this test, the U1 (U602 for serial MY53xx6xxx) turns on all display segments.
Page 164 Error Messages Self-Test Error Messages Table 4-2 Self-test error messages (continued) System ADC test failed This test checks if the ADC hardware is functional. The main controller U10 establishes communication with the ADC and checks if there are any error bits set for the ADC's status reporting. Unable to sense line frequency This test checks that the LSENSE logic input U17 is toggling.
Page 165: Calibration Error Messages
Error Messages Calibration Error Messages Calibration Error Messages Table 4-3 Calibration error messages Cal security disabled by jumper The calibration security feature has been disabled with a jumper inside the power supply. When applicable, this error will occur at power-on to warn you that the power supply is unsecured. Cal secured The power supply is secured against calibration.
Page 166 Error Messages Calibration Error Messages Table 4-3 Calibration error messages (continued) Cal OVP status enabled Overvoltage protection status is enabled. You must set overvoltage to OFF before and during the calibration. Gain out of range for Gain Error Correction The slope of the DAC gain is out of range. Hardware fails. Cal checksum failed, secure state Cal checksum failed, string data Cal checksum failed, store/recall data in location 1...
Page 167: Application Programs
E364xA Dual Output DC Power Supplies User’s and Service Guide Application Programs Overview 144 Example Program for C and C++ 145 Example Program for Excel 97 149 This chapter contains two application programs that utilize the remote interface.
Page 168: Overview
Application Programs Overview Overview The application programs in this chapter help you to develop programs for your own application. Chapter 3, “Remote Interface Reference” lists the syntax for the SCPI commands available to program the power supply. The examples in this chapter have been tested on a PC running Windows 3.1, Windows 95, or Windows NT 4.0.
Page 169: Example Program For C And C
Application Programs Example Program for C and C++ Example Program for C and C++ The following C programming example shows you how to send and receive formatted I/O. This programming example shows you how to use SCPI commands for the instrument with VISA functionality and also includes error trapping.
Page 170 Application Programs Example Program for C and C++ void OpenPort(); void main() double voltage; /* Value of voltage sent to power supply char Buffer[256]; /* String returned from power supply double current; /* Value of current output of power supply OpenPort();...
Page 171 Application Programs Example Program for C and C++ void OpenPort() char GPIB_Address[3]; char COM_Address[2]; char VISA_address[40]; /* Complete VISA address sent to card if(bGPIB) strcpy(GPIB_Address,"5"); /* Select GPIB address between 0 to 30*/ else strcpy(COM_Address,"1"); /* Set the number to 2 for COM2 port */ if(bGPIB){ /* For use with GPIB 7 address, use "GPIB::7::INSTR"...
Page 172 Application Programs Example Program for C and C++ strcpy(pString,ReadBuffer); void ClosePort() /* Close the communication port */ viClose(power_supply); viClose(defaultRM); void CheckError(char* pMessage) if (ErrorStatus < VI_SUCCESS){ printf("\n %s",pMessage); ClosePort(); exit(0); void delay(clock_t wait) clock_t goal; goal = wait + clock(); while( goal >...
Page 173: Figure 5-1 Example Program Result
Application Programs Example Program for Excel 97 Example Program for Excel 97 This section contains the example program written using Excel Macros (Visual Basic for Applications) to control your power supply. With Excel, you can take the value of a cell in a spread- sheet, send it to the power supply, and then record the response on the worksheet.
Page 174 Application Programs Example Program for Excel 97 To write an Excel macro: 1 You must first open a module in Excel. 2 Go to the View menu, choose Toolbars, and then select Control Toolbox. The Control Toolbox dialog box appears. 3 Select the Command button in the dialog box.
Page 175 Application Programs Example Program for Excel 97 Make any changes necessary to suit your application in the Diode module. You must enter the information in the modules exactly as shown or an error will be generated. If several system errors occur while attempting to run a macro, you may have to reboot your PC to get the GPIB or RS- 232 interface to work properly.
Page 176 Application Programs Example Program for Excel 97 Private Function OpenPort() Dim GPIB_Address As String Dim COM_Address As String If bGPIB Then GPIB_Address = "5" ' Select GPIB address between 0 to 30 Else COM_Address = "1" ' Set the number to 2 for COM2 port End If ErrorStatus = viOpenDefaultRM(defaultRM) ' Open the VISA session...
Page 177 ' visa.bas file in the c:\vxipnp\win31\include directory on your PC. This routine uses the ' VTL Library to send commands to an instrument. A description of these and additional ' VTL commands are contained in the Keysight Technologies Visa Transition Library book ' Keysight Part Number E2094-90002.
Page 178 Application Programs Example Program for Excel 97 Declaration for Windows 95/NT 4.0 '************************************************************************************ ' Additional declarations for VISA32.DLL are usually in the visa32.bas file in the ' c:\vxipnp\win95(or winNT)\include directory on your PC. Also see the VISA manual. '************************************************************************************ Declare Function viOpenDefaultRM Lib "visa32.dll" (instrumentHandle As Long) As Long Declare Function viOpen Lib "visa32.dll"...
Page 179: Tutorial
E364xA Dual Output DC Power Supplies User’s and Service Guide Tutorial Overview of the Power Supply Operation 156 Output Characteristics 158 Extending the Voltage Range and Current Range 163 Remote Programming 165 This chapter describes the basic operation of a linear power supply and the operation of this power supply.
Page 180: Overview Of The Power Supply Operation
Tutorial Overview of the Power Supply Operation Overview of the Power Supply Operation The basic design model for power supplies consists of placing a control element in series with the rectifier and load device. Figure 6- 1 shows a simplified schematic of a series regulated supply with the phase- controlled pre- regulator described as a power switch and the series element depicted as a variable resistor.
Page 181: Figure 6-2 Block Diagram Of The Power Supply Showing The Remote Interface Isolation
Tutorial Overview of the Power Supply Operation This power supply has two ranges, allowing more voltage at a lower current or more current at a lower voltage. Single range supplies can only output maximum power at full- scale voltages and full- scale current. This supply can provide output power that is close to maximum at full- scale for both ranges.
Page 182: Output Characteristics
Tutorial Output Characteristics Output Characteristics An ideal constant voltage power supply would have a zero output impedance at all frequencies. Thus, as shown in Figure 6- 3, the voltage would remain perfectly constant in spite of any changes in output current demanded by the load.
Page 183: Figure 6-5 Output Characteristics
Tutorial Output Characteristics The ideal constant current power supply exhibits an infinite output impedance at all frequencies. Thus as Figure 6- 4 indicates, the ideal constant current power supply would accommodate a load resistance change by altering its output voltage by just the amount necessary to maintain its output current at a constant value.
Page 184: Unregulated State
Tutorial Output Characteristics When the load R is less than R , the output current will dominate since the voltage will be less than the set voltage. The power supply is said to be in the constant current mode. The load at point 2 has a relatively low resistance, the output voltage is less than the voltage setting, and the output current is at the current setting.
Page 185 Tutorial Output Characteristics Normal mode voltage noise is in the form of ripple related to the line frequency plus some random noise. Both of these are of very low value in the power supply. Careful lead layout and keeping the power supply circuitry away from power devices and other noise sources will keep these values low.
Page 186: Figure 6-6 Simplified Diagram Of The Common Mode And Normal Mode Sources Of Noise
<1 mVrms COMMON MODE NOISE <1.5 μArms [1] E3646A/E3648A models [2] E3647A/E3649A models Figure 6-6 Simplified diagram of the common mode and normal mode sources of noise When the load changes very rapidly, as when a relay contact is closed, the inductance in the hook up wire and in the power supply output will cause a spike to appear at the load.
Page 187: Extending The Voltage Range And Current Range
Tutorial Extending the Voltage Range and Current Range Extending the Voltage Range and Current Range The power supply may be able to provide voltages and currents greater than its rated maximum outputs if the power- line voltage is at or above its nominal value. Operation can be extended up to 3% over the rated output without damage to the power supply, but performance can not be guaranteed to meet specifications in this region.
Page 188: Parallel Connections
Tutorial Extending the Voltage Range and Current Range Parallel connections Two or more power supplies being capable of the CV/CC automatic crossover operation can be connected in parallel to obtain a total output current greater than that available from one power supply. The total output current is the sum of the output currents of the individual power supplies.
Page 189: Remote Programming
Tutorial Remote Programming Remote Programming During remote programming, a constant voltage regulated power supply is called upon to change its output voltage rapidly. The most important factor limiting the speed of output voltage change is the output capacitor and load resistor.
Page 190: Figure 6-8 Speed Of Response - Programming Down
Tutorial Remote Programming When this exponential rise reaches the newly programmed voltage level, the constant voltage amplifier resumes its normal regulating action and holds the output constant. Thus, the rise time can be determined approximately using the formula shown in Figure 6- If no load resistor is attached to the power supply output terminal, then the output voltage will rise linearly at a rate...
Page 191 Tutorial Remote Programming Since up- programming speed is aided by the conduction of the series regulating transistor, while down- programming normally has no active element aiding in the discharge of the output capacitor, laboratory power supplies normally program upward more rapidly than downward. E364xA User’s and Service Guide...
Page 192 Tutorial Remote Programming THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. E364xA User’s and Service Guide...
Page 193: Characteristics And Specifications
E364xA Dual Output DC Power Supplies User’s and Service Guide Characteristics and Specifications Physical Characteristics 170 Environmental Characteristics 172 Electrical Specifications 172 Supplemental Characteristics 174 This chapter lists the characteristics and specifications of the E364xA dual output DC power supplies. Specifications are warranted in the temperature range of 0 °C to 40 °C N O T E with a resistive load.
Page 194: Physical Characteristics
Characteristics and Specifications Physical Characteristics Physical Characteristics Table 7-1 Physical characteristics Parameter E3646A E3647A E3648A E3649A Dimensions (W × H × D) 212.8 mm × 133 mm × 348.3 mm Weight 8.2 kg 8.0 kg 9.2 kg 9.1 kg Shipping 10.1 kg...
Page 195: Figure 7-2 E364Xa Dimensions For Rack-Mounting
Characteristics and Specifications Physical Characteristics 3/$&(6 Figure 7-2 E364xA dimensions for rack-mounting E364xA User’s and Service Guide...
Page 196: Environmental Characteristics
Environmental Characteristics Environmental Characteristics Refer to “Environmental Conditions” on page Electrical Specifications Table 7-2 Electrical specifications Parameter E3646A E3647A E3648A E3649A 0 V to +8 V 0 V to +35 V 0 V to +8 V 0 V to +35 V...
Page 197 Characteristics and Specifications Electrical Specifications Table 7-2 Electrical specifications (continued) Parameter E3646A E3647A E3648A E3649A <0.01% + 3 mV Load regulation Voltage ±(% of output + offset) <0.01% + 250 μA Current <0.01% + 3 mV Line regulation Voltage ±(% of output + offset) <0.01% + 250 μA...
Page 198: Supplemental Characteristics
Characteristics and Specifications Supplemental Characteristics Supplemental Characteristics Table 7-3 Supplemental characteristics Parameter E3646A E3647A E3648A E3649A 0 to +8.24 V 0 to +36.05 V 0 to +8.24 V 0 to +36.05 V Output programming range Low range 0 to 3.09 A 0 to 0.824 A...
Page 199 Characteristics and Specifications Supplemental Characteristics Table 7-3 Supplemental characteristics (continued) Parameter E3646A E3647A E3648A E3649A <0.5% + 0.5 V Overvoltage protection accuracy ±(% of output + offset) <1.5 ms when the trip voltage is ≥3 V Overvoltage protection response time <10 ms when the trip voltage is <3 V...
Page 200 Characteristics and Specifications Supplemental Characteristics THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. E364xA User’s and Service Guide...
Page 201: Service And Maintenance
E364xA Dual Output DC Power Supplies User’s and Service Guide Service and Maintenance Overview 178 Operating Checklist 179 Types of Service Available 180 Repacking for Shipment 181 Electrostatic Discharge (ESD) Precautions 182 Replacing the Power-Line Fuse 183 Troubleshooting Hints 184 Self-Test Procedures 186 General Disassembly 188 Recommended Test Equipment 189...
Page 202: Overview
Service and Maintenance Overview Overview The power supply must pass the complete self- test before calibration or any of the verification or performance tests can be performed. If the supply fails any of the tests or if abnormal test results are obtained, refer to “Troubleshooting Hints”...
Page 203: Operating Checklist
Service and Maintenance Operating Checklist Operating Checklist Before returning your power supply to Keysight for service or repair, check the following items: Is the power supply inoperative? ✔ Verify that the AC power cord is connected to the power supply. ✔...
Page 204: Types Of Service Available
Service and Maintenance Types of Service Available Types of Service Available If your power supply fails within three years of the original purchased date, Keysight will repair or replace it free of charge. If your unit fails after your three years warranty expires, Keysight will repair or replace it at a very competitive price.
Page 205: Repacking For Shipment
Service and Maintenance Repacking for Shipment Repacking for Shipment If your unit is shipped to Keysight for service or repair, you need to: • attach a tag to the power supply identifying the owner and indicating the required service or repair. Include the instrument model number and full serial number.
Page 206: Electrostatic Discharge (Esd) Precautions
Service and Maintenance Electrostatic Discharge (ESD) Precautions Electrostatic Discharge (ESD) Precautions Almost all electrical components can be damaged by electrostatic discharge (ESD) during handling. Component damage can occur at electrostatic discharge voltages as low as 50 V. The following guidelines will help prevent ESD damage when using the power supply or any electronic device.
Page 207: Surface Mount Repair
Service and Maintenance Surface Mount Repair Surface Mount Repair Surface mount components should only be removed using soldering irons or disordering stations expressly designed for surface mount components. Use of conventional solder removal equipment will almost always result in permanent damage to the printed circuit board and will void your Keysight factory warranty.
Page 208: Troubleshooting Hints
Also, ensure that all terminal connections are removed while the self- test is performed. Failure of the DAC U20 on the PC board will cause many self- test failures. [1] For serial MY53xx6xxx, DAC U13 or U12 for E3646A/E3648A, or U14 for E3647A/E3649A. E364xA User’s and Service Guide...
Page 209: Bias Supplies Problems
Service and Maintenance Troubleshooting Hints Bias supplies problems Check that the input to the voltage regulators of the bias supplies is at least 1 V greater than their output. Circuit failures can cause heavy loads of the bias supplies which may pull down the regulator output voltages.
Page 210: Self-Test Procedures
Service and Maintenance Self-Test Procedures Self-Test Procedures Power-on self-test Each time the power supply is powered on, a set of self- tests are performed. These tests check that the minimum set of logic and measurement hardware are functioning properly. Failures during the power- on self- test utilize error codes 601 through 604 and 624 through 633.
Page 211 Service and Maintenance Self-Test Procedures Table 8-3 Self-test error messages (continued) This test checks if the ADC hardware is functional. The main controller U10 establishes communication with the ADC and checks if there are any error bits set for the ADC's status reporting. Unable to sense line frequency I/O processor does not respond I/O processor failed self-test...
Page 212: General Disassembly
Service and Maintenance General Disassembly General Disassembly Figure 8-1 General disassembly E364xA User’s and Service Guide...
Page 213: Recommended Test Equipment
Service and Maintenance Recommended Test Equipment Recommended Test Equipment Table 8- 4 describes the test equipment recommended for the performance verification and adjustment procedures. If the exact instrument is not available, use the accuracy requirements shown to select substitute calibration standards.
Page 214 Measure current rms ripple resistor (shunt) R or equivalent and noise [1] Applicable for E3646A only. [2] Applicable for E3647A only. [3] Applicable for E3648A only. [4] Applicable for E3649A only. [5] To find the accurate resistance, it is recommended to use a current monitoring resistor after calibration.
Page 215: Test Considerations
Service and Maintenance Test Considerations Test Considerations To ensure proper power supply operation, verify that you have selected the correct power- line voltage prior to attempting any test procedure in this chapter. Refer to “Converting line voltage” on page Ensure that all terminal connections (both front panel and rear panel) are removed while the internal self- test is being performed.
Page 216: Operation Verification And Performance Tests
Service and Maintenance Operation Verification and Performance Tests Operation Verification and Performance Tests Operation verification tests To ensure that the power supply is operating properly, without testing all specified parameters, perform the following test procedures: • Perform the power- on self- test and follow the procedures “Checking the output”...
Page 217: Measurement Techniques
Service and Maintenance Measurement Techniques Measurement Techniques Common test setup Most tests are performed at the front terminals as shown in Figure 8- 2. Measure the DC voltage directly at the (+) and (–) terminals on the front panel. DVM, scope, or rms voltmeter Figure 8-2 Performance verification test setup...
Page 218: Current-Monitoring Resistor
Service and Maintenance Measurement Techniques Current-monitoring resistor To eliminate the output current measurement error caused by the voltage drops in the leads and connections, connect the current- monitoring resistor between the (–) output terminal and the load as a four- terminal device. Connect the current- monitoring leads inside the load- lead connections directly at the monitoring points on the resistor element (Refer to R...
Page 219: Electronic Load
Service and Maintenance Measurement Techniques Electronic load Many of the test procedures require the use of a variable load resistor capable of dissipating the required power. Using a variable load resistor requires that switches should be used to connect, disconnect, and short the load resistor. An electronic load, if available, can be used in place of a variable load resistor and switches.
Page 220: Constant Voltage (Cv) Verifications
2- wire cable to avoid noise pick- up on the test leads. Table 8-5 Verification programming values Model Low voltage range High voltage range E3646A 8 V/3 A 20 V/1.5 A E3647A 35 V/0.8 A 60 V/0.5 A...
Page 221 (60 V ±85 mV) for output2. 9 Read back the output voltage over the remote interface by sending the MEAS:VOLT? command. [1] For the E3646A model. For other models, refer to Table 8-5. [2] For the E3646A/E3648A model. [3] For the E3647A/E3649A model.
Page 222: Cv Load Effect (Load Regulation)
The difference of the readings during the immediate change should be within the limit of (5 mV) (9 mV) [1] For the E3646A/E3648A model. [2] For the E3647A/E3649A model. [3] For the E3646A model. For other models, refer to Table 8-5. E364xA User’s and Service Guide...
Page 223: Cv Source Effect (Line Regulation)
CV line regulation. The difference of the readings during the immediate change should be within the limit of 5 mV or 9 mV [1] For the E3646A model. For other models, refer to Table 8-5. E364xA User’s and Service Guide...
Page 224: Cv Pard (Ripple And Noise)
B in Figure 8- Twisted leads between the load resistor and the power supply help reduce noise pickup for these measurements. [2] For the E3646A/E3648A model. [3] For the E3647A/E3649A model. E364xA User’s and Service Guide...
Page 225: Figure 8-4 Cv Pard (Ripple And Noise)
AC mode and bandwidth limit to 20 MHz. Connect a resistive load (13.5 Ω) to the terminal at B as shown in Figure 8- [1] For the E3646A model. For other models, refer to Table 8-4. E364xA User’s and Service Guide...
Page 226: Load Transient Response Time
(1.545 A) and the voltage to the full rated value (20.0 V) [1] For the E3646A model. For other models, refer to Table 8-5. [2] For the E3646A model. For other models, refer to Table 7-3.
Page 227: Figure 8-5 Transient Response Time
Service and Maintenance Constant Voltage (CV) Verifications 3 Set the electronic load current to half of the power supply full rated current value, the electronic load to the transient operation mode with the transient level to the power supply full rated current value, and the output’s full rated value at a 1 kHz rate with 50% duty cycle.
Page 228: Constant Current (Cc) Verifications
2 Turn on the power supply. Select the output to be tested and the low voltage range (8 V/3 A) and then enable the output by sending the following commands: INST:SEL {OUT1|OUT2} VOLT:RANG P8V (E3646A model) OUTP ON E364xA User’s and Service Guide...
Page 229 5 A ±20 mA 1.4 A ±12.8 mA 9 Read back the output current over the remote interface by sending the MEAS:CURR? command: [1] For the E3646A model. For other models, refer to Table 8-5. E364xA User’s and Service Guide...
Page 230: Cc Load Effect (Load Regulation)
Record the current reading by dividing the voltage reading on the digital voltmeter by the resistance of the current monitoring resistor. [1] For the E3646A model. For other models, refer to Table 8-5. E364xA User’s and Service Guide...
Page 231: Cc Source Effect (Line Regulation)
CC annunciator remains lit. If not lit, adjust the load so that the output voltage drops slightly until the CC annunciator lights up. [1] For the E3646A model. For other models, refer to Table 8-5. E364xA User’s and Service Guide...
Page 232: Cc Pard (Ripple And Noise)
The difference between the current readings in step 5 step 6 is the load regulation current. The difference of the readings during the immediate change should be within the following limits: E3646A E3647A E3648A E3649A 0.55 mA 0.33 mA 0.75 mA...
Page 233: Figure 8-6 Cc Pard Connections (Ripple And Noise)
4 mA. 4 Repeat step 1 through step 3 for the other output. [1] For the E3646A model. For other models, refer to Table 8-5. [2] For the E3646A model. For other models, refer to Table 7-3.
Page 234: Common Mode Current Noise
1.5 μA. 5 Repeat step 1 through step 4 for the other output. [1] For the E3646A model. For other models, refer to Table 8-5. [2] For the E3646A model. For other models, refer to Table 7-3.
Page 235: Performance Test Record
DVM + 0.0050 V DVM – 0.0050 V at 0 V Output2 DVM + 0.0250 V DVM – 0.0250 V CV programming accuracy E3646A/E3648A Output1 20.0200 V 19.9800 V at full-scale (DVM reading) Output2 20.0450 V 19.9550 V E3647A/E3649A Output1 60.0400 V...
Page 236: Table 8-7 Cc Performance Test Record
E3649A Output1 + 0.0071 A – 0.0071 A Output2 + 0.0121 A – 0.0121 A CC load effect (load regulation) E3646A Maximum change: <0.55 mA E3647A Maximum change: <0.33 mA E3648A Maximum change: <0.75 mA E3649A Maximum change: <0.39 mA...
Page 237 Service and Maintenance Performance Test Record Table 8-7 CC performance test record (continued) Test description Models Output Actual result Specifications Upper limit Lower limit CC PARD (normal mode) <4 mA rms μ CC PARD (common mode) <1.5 A rms E364xA User’s and Service Guide...
Page 238: Calibration Reference
When your power supply is due for calibration, contact your local Keysight Service Center for a low- cost calibration. The Keysight E3646A, E3647A, E3648A, and E3649A power supplies are supported on calibration processes which allow Keysight to provide this service at competitive prices.
Page 239 Service and Maintenance Calibration Reference 3 Connect the power cord and turn on the calibration mode by holding down the Calibrate key as you turn on the power supply and hold down the key until you hear a long beep. Be careful not to touch the power line connections.
Page 240: General Calibration Or Adjustment Procedure
Service and Maintenance General Calibration or Adjustment Procedure General Calibration or Adjustment Procedure The power supply should be calibrated after a 1-hour warm-up with no N O T E load connected. Perform the voltage calibration prior to the OVP calibration. The front panel calibration procedures are described in this section.
Page 241: Front Panel Voltage And Current Calibration
DVM across the output terminals. Refer to “Calibration” on page 61 unsecure. In the following procedure, the E3646A is referenced to describe the calibration procedure as an example, so a different calibration value for each calibration point may be prompted to be adjusted for your specific model.
Page 242 Service and Maintenance General Calibration or Adjustment Procedure Voltage and OVP calibration View 2 Move down a level to the voltage calibration mode. Calibrate VOLT1 CAL View 3 Select the low- end voltage calibration point. Calibrate V LO 0.300,0 4 Enter the reading you obtained from the DVM by using the knob and resolution selection keys.
Page 243 Service and Maintenance General Calibration or Adjustment Procedure 10 Run the OVP calibration. View Calibrate CALIBRATING The message above is displayed to indicate that the calibration is in progress. It takes approximately 10 seconds to complete the calibration. If the calibration fails, an error message will be displayed for a second and you will hear a beep, and then return to the OVP calibration mode again.
Page 244 Service and Maintenance General Calibration or Adjustment Procedure 15 Save the change and select the high current calibration View Calibrate point. I HI 2.800,0 16 Enter the computed value (DVM reading divided by the shunt resistance) by using the knob and resolution selection keys.
Page 245: Calibration Record
Service and Maintenance Calibration Record Calibration Record Table 8-9 Calibration record Step Calibration description Measurement Supply being mode (DVM) adjusted Turn on the calibration mode by holding down the Calibrate key as you turn on the power supply until you hear a long beep. Unsecure the power supply if secured.
Page 246: Calibration Error Messages
Service and Maintenance Calibration Error Messages Table 8-9 Calibration record (continued) Step Calibration description Measurement Supply being mode (DVM) adjusted A high current calibration point is displayed. Enter the computed value High current (DVM reading divided by the shunt resistance) by using the knob and calibration resolution keys.
Page 247 Service and Maintenance Calibration Error Messages Table 8-10 Calibration error messages (continued) Gain out of range for Gain Error Correction Cal checksum failed, secure state Cal checksum failed, string data Cal checksum failed, store/recall data in location 1 Cal checksum failed, store/recall data in location 2 Cal checksum failed, store/recall data in location 3 Cal checksum failed, DAC cal constants Cal checksum failed, readback cal constants...
Page 248 Service and Maintenance Calibration Error Messages THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. E364xA User’s and Service Guide...
Page 249: Component Locator Diagram
Service and Maintenance Component Locator Diagram Component Locator Diagram Component locator diagram for the main board assembly — top E364xA User’s and Service Guide...
Page 250: Component Locator Diagram For The Main Board Assembly - Bottom
Service and Maintenance Component Locator Diagram Component locator diagram for the main board assembly — bottom E364xA User’s and Service Guide...
Page 251: Component Locator Diagram For The Digital Board Assembly - Top
Service and Maintenance Component Locator Diagram Component locator diagram for the digital board assembly — top E364xA User’s and Service Guide...
Page 252: Component Locator Diagram For The Digital Board Assembly - Bottom
Service and Maintenance Component Locator Diagram Component locator diagram for the digital board assembly — bottom E364xA User’s and Service Guide...
Page 253: Component Locator Diagram For The Front Panel - Top
Service and Maintenance Component Locator Diagram Component locator diagram for the front panel — top E364xA User’s and Service Guide...
Page 254: Component Locator Diagram For The Main Board Assembly - Top (Serial My53Xx6Xxx)
Service and Maintenance Component Locator Diagram Component locator diagram for the main board assembly — top (serial MY53xx6xxx) E364xA User’s and Service Guide...
Page 255: Component Locator Diagram For The Main Board Assembly - Bottom (Serial My53Xx6Xxx)
Service and Maintenance Component Locator Diagram Component locator diagram for the main board assembly — bottom (serial MY53xx6xxx) E364xA User’s and Service Guide...
Page 256: Component Locator Diagram For The Digital Board Assembly - Top (Serial My53Xx6Xxx)
Service and Maintenance Component Locator Diagram Component locator diagram for the digital board assembly — top (serial MY53xx6xxx) E364xA User’s and Service Guide...
Page 257: Component Locator Diagram For The Digital Board Assembly - Bottom (Serial My53Xx6Xxx)
Service and Maintenance Component Locator Diagram Component locator diagram for the digital board assembly — bottom (serial MY53xx6xxx) E364xA User’s and Service Guide...
Page 258: Component Locator Diagram For The Front Panel - Top (Serial My53Xx6Xxx)
Service and Maintenance Component Locator Diagram Component locator diagram for the front panel — top (serial MY53xx6xxx) E364xA User’s and Service Guide...
Page 259 www.keysight.com Contact us To obtain service, warranty, or technical assistance, contact us at the following phone or fax numbers: United States: (tel) 800 829 4444 (fax) 800 829 4433 Canada: (tel) 877 894 4414 (fax) 800 746 4866 China: (tel) 800 810 0189 (fax) 800 820 2816 Europe: (tel) 31 20 547 2111...
Page 260 This information is subject to change without notice. © Keysight Technologies 2000 - 2014 Edition 11, November 2014 *E3646-90001* E3646-90001 www.keysight.com...

This manual is also suitable for:

E3647a E3648a E3649a

Keysight Technologies E3646A User's And Service Manual

1 Getting Started

2 Operation and Features

3 Remote Interface Reference

4 Error Messages

5 Application Programs

6 Tutorial

7 Characteristics and Specifications

8 Service and Maintenance

Quick Links

Troubleshooting

Need help?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Keysight Technologies E3646A

Summary of Contents for Keysight Technologies E3646A