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Keysight E3633A and

E3634A DC Power Supplies

User’s Guide

Summary of Contents for E3630 Series

Page 1: ...Keysight E3633A and E3634A DC Power Supplies User s Guide...

Page 2: ...ights customarily provided to the public to use modify reproduce release per form display or disclose commercial computer software or commercial com puter software documentation No additional governme...

Page 3: ...he warranty period either Keysight or Keysight Technologies will at its option either repair or replace products which prove to be defective Keysight does not warrant that operation the software firmw...

Page 4: ...y terms contained in this statement except to the extent lawfully permitted do not exclude restrict or modify and are in addition to the mandatory rights applicable to the sale of this product to you...

Page 5: ...tain safe operation of the instrument Caution risk of danger refer to this manual for specific Warning or Caution information Direct current DC Protective conductor terminal Alternating current AC Ear...

Page 6: ...product is a Safety Class I instrument provided with a protective earth terminal To minimize shock hazard the instrument chassis and cabinet must be connected to an electrical ground The instrument mu...

Page 7: ...s another person capable of rendering first aid and resuscitation is present CAUTION DO NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT Because of the danger of introducing additional hazards do not install...

Page 8: ...dous or toxic substance elements are expected to leak or deteriorate during normal use Forty years is the expected useful life of the product ICES NMB 001 indicates that this ISM device complies with...

Page 9: ...and Control Instrument product The affixed product label is as shown below Do not dispose in domestic household waste To return this unwanted instrument contact your nearest Keysight Service Center or...

Page 10: ...10 Keysight E3633A and E3634A User s Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK...

Page 11: ...EE Directive 9 Product category 9 Sales and Technical Support 9 List of Figures 17 List of Tables 19 1 General Information Safety Considerations 22 Safety and EMC requirements 22 Options and Accessori...

Page 12: ...Constant Current Operation 53 Storing and Recalling Operating States 56 Programming Overvoltage Protection 58 Programming Overcurrent Protection 63 Remote Voltage Sensing at the Front and Rear Termin...

Page 13: ...Format 85 Connection to a computer or terminal 86 DTR DSR Handshake Protocol 88 RS 232 troubleshooting 89 Calibration Overview 90 Calibration security 90 Calibration count 97 Calibration Message 98 4...

Page 14: ...Message Available bit MAV 138 To interrupt your bus controller using SRQ 138 To determine when a command sequence is completed 139 Using OPC to signal when data is in the output buffer 139 Status Rep...

Page 15: ...Declaration for Windows 3 1 180 Declaration for Windows 9 5 NT 4 0 180 7 Tutorial Overview of Keysight E3633A and Keysight E3634A Operation 182 Output Characteristics 184 Unregulated state 186 Unwant...

Page 16: ...0 Temperature coefficient of output offset 200 Stability of output offset 201 Output voltage overshoot 201 Programming language 201 State Storage Memory 201 Recommended calibration interval 201 Output...

Page 17: ...he power supply showing the isolation 183 Figure 7 3 Ideal Constant Voltage Power Supply 184 Figure 7 4 Ideal Constant Current Power Supply 184 Figure 7 5 Output Characteristics 185 Figure 7 6 Simplif...

Page 18: ...18 Keysight E3633A and E3634A User s Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK...

Page 19: ...A Programming Ranges 110 Table 4 3 Bit Definitions Questionable Status Register 134 Table 4 4 Bit Definitions Standard Event Register 135 Table 4 5 Bit Definitions Status Byte Summary Register 136 Tab...

Page 20: ...20 Keysight E3633A and E3634A User s Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK...

Page 21: ...er s guide for your Keysight E3633A and E3634A DC power supplies Unless otherwise stated the information in this manual applies to both two models This chapter provides a general description of your p...

Page 22: ...ning of this manual for general safety information Safety and EMC requirements This power supply is designed to comply with the following safety and EMC Electromagnetic Compatibility requirements Low...

Page 23: ...47 63 Hz input voltage For more information about changing the power line voltage setting see Power line voltage selection on page 37 in this chapter Option no Description 0EM 115 VAC 10 47 63 Hz Inp...

Page 24: ...rately Keysight part no Description 10833A GPIB cable 1 meter 3 3 feet 10833B GPIB cable 2 meter 6 6 feet 34398A RS 232 9 pin f to 9 pin f 2 5 m 8 2 ft cable plus 9 pin m to 25 pin f adapter 34399A RS...

Page 25: ...20V 10A Keysight E3633A 25V 7A and 50V 4A Keysight E3634A Constant voltage CV or constant current CC operation Overvoltage protection OVP and overcurrent protection OCP Three storage locations 1 to 3...

Page 26: ...IB or RS 232 Capabilities include the following features Voltage and current programming Voltage and current readback Present and stored status readback Programming syntax error detection Complete sel...

Page 27: ...ing bars without insulation are used to connect the output to the sense and the output to the sense terminals WARNING Outputs can be floated to maximum of 240 Vdc provided that the metal shorting bars...

Page 28: ...panel directly or with a controller over the GPIB or RS 232 interface using calibration commands Correction factors are stored in nonvolatile memory and are used during output programming Calibration...

Page 29: ...re free of dents and scratches and that the display is not scratched or cracked Electrical check Chapter 2 describes an initial operation procedure which when successfully completed verifies to a high...

Page 30: ...3 9243 Installation instructions and hardware are included with each rack mounting kit Any Keysight System II instrument of the same size can be rack mounted beside the Keysight E3633A or E3634A DC po...

Page 31: ...634A User s Guide 31 To rack mount two instruments of the same depth side by side order lock link kit 5061 9694 and flange kit 5063 9214 To install two instruments in a sliding support shelf order sup...

Page 32: ...ey E3634A 7 Store operating state Local key 8 Error Calibrate key 2 20V 10A range selection key E3633A 50V 4A range selection key E3634A 9 I O Configuration key 10 Output On Off key 3 Overvoltage prot...

Page 33: ...remote interface mode 8 Error Calibrate key 2 Displays error codes generated during operation self test and calibration or enables calibration mode the power supply must be unsecured before performin...

Page 34: ...nt control mode by pressing the key 5 Move the blinking digit to the appropriate position using the resolution selection keys and change the blinking digit value to the desired current limit by turnin...

Page 35: ...wer supply to shutdown when the annunciator blinks OCP The overcurrent protection function is enabled when the annunciator turns on or the overcurrent protection circuit has caused the power supply to...

Page 36: ...lect the GPIB or RS 232 interface see chapter 3 Set the GPIB bus address see chapter 3 Set the RS 232 baud rate and parity see chapter 3 1 Power line voltage setting 5 GPIB IEEE 488 interface connecti...

Page 37: ...rd that has a plug appropriate for your location Contact the nearest Keysight Sales and Service Office if the wrong power line cord is included with your power supply Your power supply is equipped wit...

Page 38: ...mbly with a flat blade screwdriver from the rear panel 2 Install the correct line fuse Remove the power line voltage selector from the power line module 3 Rotate the power line voltage selector until...

Page 39: ...s the user visually to check the display The output check ensures that the power supply develops its rated outputs and properly responds to operation from the front panel For complete performance and...

Page 40: ...is shipped from the factory Change the voltage setting if it is not correct The settings are 100 115 or 230 Vac 3 Verify that the correct power line fuse is installed The correct fuse is installed for...

Page 41: ...ut one second The GPIB address is set to 5 when the power supply is shipped from the factory for remote interface configuration If this is not the first time the power supply is turned on a different...

Page 42: ...t The blinking digit can be adjusted by turning the knob Notice that the display is in the meter mode Meter mode means that the display shows the actual output voltage and current 1 For Keysight E3633...

Page 43: ...ns on and the knob is selected for voltage control 2 Enable the outputs The OFF annunciator turns off and the 8V 1 or 25V 2 OVP OCP and CV annunciators are lit The blinking digit can be adjusted by tu...

Page 44: ...2 Initial Operation 44 Keysight E3633A and E3634A User s Guide NOTE You can use the resolution selection keys to move the blinking digit to the right or left when setting the voltage...

Page 45: ...le the maximum current See Table 7 1 3 Enable the output The OFF annunciator turns off and the 8V 1 or 25V 2 OVP and OCP annunciators are lit The CV or CC annunciator turns on depending on the resista...

Page 46: ...tage drop caused by the test lead 6 Ensure that the current can be adjusted from zero to the full rated value Adjust the knob until the ammeter indicates 0 amps and then until the ammeter indicates 20...

Page 47: ...4 Remote Interface Configuration 79 HPIB Interface Configuration 84 RS 232 Interface Configuration 85 Calibration Overview 90 So far you have learned how to install your power supply and perform initi...

Page 48: ...has two output ranges This feature allows more voltage at a lower current or more current at a lower voltage The desired output range is selected from the front panel or over the remote interfaces Th...

Page 49: ...in CV mode in the 8V 20A 1 or 25V 7A 2 range and controlled from the front panel then the CV and 8V 1 or 25V 2 annunciators will turn on If however the power supply is remotely controlled the Rmt annu...

Page 50: ...ply in the 20V 10A or 50V 4A range before proceeding to the next step The 20V 1 or 50V 2 annunciator turns on 3 Set the display to the limit mode Notice that the Limit annunciator blinks indicating th...

Page 51: ...on selection keys and adjust the knob to the desired output voltage 6 Return to the meter mode Press key or let the display time out after several seconds to return to the meter mode Notice that the L...

Page 52: ...Remote interface operation NOTE During actual CV operation if a load change causes the current limit to be exceeded the power supply will automatically crossover to the constant current mode at the pr...

Page 53: ...50V 4A 2 range press 1 or 2 key before proceeding to the next step The 20V 1 or 50V 2 annunciator turns on 3 Set the display to the limit mode Notice that the Limit annunciator blinks indicating that...

Page 54: ...n selection keys and adjust the knob to the desired output current 6 Return to the meter mode Press key or let the display time out after several seconds to return to the meter mode Notice that the Li...

Page 55: ...t Remote interface operation NOTE During actual CC operation if a load change causes the voltage limit to be exceeded the power supply will automatically crossover to constant voltage mode at the pres...

Page 56: ...e storage feature remembers output range selection the limit value settings of voltage and current output on off state OVP and OCT on off state and OVP and OCP trip levels 2 Turn on the storage mode T...

Page 57: ...ge the displayed storage location to 3 If this setting is not followed within 3 seconds with key stroke the power supply returns to normal operating mode and will not recall the instrument state 3 fro...

Page 58: ...dition Front panel operation Setting the OVP level and enable the OVP circuit 1 Turn on the power supply The power supply will go into the power on reset state the output is disabled the OFF annunciat...

Page 59: ...by turning the knob until the OVP circuit trips This will cause the power supply output to drop to near zero the OVP annunciator to blink and the CC annunciator to turn on The OVP TRIPPED message also...

Page 60: ...nciators are blinking 2 Move to the clear mode Press key twice to move to the OVP CLEAR mode The OVP ON message appears on the display Turn the knob to the right until the above message appears on the...

Page 61: ...k any more The output will return to the meter mode Remote interface operation OVP CLEAR VOLT PROT voltage MIN MAX Set the OVP level VOLT PROT STAT OFF ON Disable or enable the OVP circuit VOLT PROT C...

Page 62: ...3 Front Panel Operation 62 Keysight E3633A and E3634A User s Guide Figure 3 1 Recommended protection circuit for battery charging...

Page 63: ...Setting the OCP level and enable the OCP circuit 1 Turn on the power supply The power supply will go into the power on reset state the output is disabled the OFF annunciator turns on the 8V 20A 1 or 2...

Page 64: ...se the output by turning the knob until the OCP circuit trips This will cause the power supply s output current to drop to zero and the OCP annunciator to blink The OCP TRIPPED message also appears on...

Page 65: ...twice to move to the OCP CLEAR mode The OCP ON message appears on the display Turn the knob to the right until the above message appears on the display 3 Clear the overcurrent condition and exit this...

Page 66: ...the display Turn the knob to the right until the above message appears on the display 3 Clear the overcurrent condition and exit this menu Now when you press again the DONE message is displayed for a...

Page 67: ...put terminals CV regulation The voltage load regulation specification in chapter 8 applies at the output terminals of the power supply When remote sensing add 5 mV to this specification for each 1V dr...

Page 68: ...cases it may cause oscillations To minimize this possibility keep the load leads as short as possible and twist them together As the sense leads are part of the power supply s programming feedback loo...

Page 69: ...sure to disconnect all the connections to the load and sense leads at the other end terminals Do not make the sensing connections at both front and rear terminals at the same time It will cause to dam...

Page 70: ...ring The front panel binding posts are paralleled with the rear output terminals The rear output terminals accept wires sizes from AWG 22 to AWG 10 To minimize the possibility of instability on the ou...

Page 71: ...le memory the output is always disabled when power has been off or after a remote interface reset Front panel operation You can disable the output by pressing key This key toggles between output Off a...

Page 72: ...rol an external relay This signal can only be controlled with the remote command OUTPut RELay OFF ON The TTL output is available on the RS 232 connection pin 1 and pin 9 When the OUTPut RELay state is...

Page 73: ...m any unwanted changes occurring during an experiment or when you leave the power supply unattended To lock the knob move the blinking digit to the right or left using the resolution selection key or...

Page 74: ...self test fails the ERROR annunciator turns on A complete self test performs a series of tests and takes approximately 2 seconds to execute If all tests pass you can have a high confidence that the po...

Page 75: ...When you have read all errors from the queue the ERROR annunciator turns off The power supply beeps once each time an error is generated If more than 20 errors have occurred when you operate the powe...

Page 76: ...knob to scroll through the error numbers Press to view the text of the error message Press or key to increase or decrease the scrolling speed of the text on the display All errors are cleared when yo...

Page 77: ...remote interface The power supply can display up to 12 characters of the message on the front panel any additional characters are truncated Commas periods and semicolons share a display space with the...

Page 78: ...he third is for the front panel processor Remote interface operation Be sure to dimension a strong variable with at least 40 characters SCPI language version The power supply complies with the rules a...

Page 79: ...in non volatile memory and does not change when power has been off or after a remote interface reset If you select the HPIB interface you must select a unique address for the power supply The current...

Page 80: ...ud rate selection RS 232 You can select one of six baud rates for RS 232 operation The rate is set to 9600 baud when the power supply is shipped from the factory The baud rate can be set from the fron...

Page 81: ...t a different HPIB address may appear if the power supply has been changed from the factory setting 3 Turn the knob to change the HPIB address The displayed address is changed when turning the knob to...

Page 82: ...n choose the RS 232 interface by turning the knob to the left 3 Move to the RS 232 interface setting mode and select the baud rate The rate is set to 9600 baud when the power supply is shipped from th...

Page 83: ...mory and does not change when power has been off or after a remote interface reset The power supply displays a message to show that the change is now in effect If the baud rate and the parity are not...

Page 84: ...r both as long as the following rules are observed The total number of devices including the computer is no more than 15 The total length of all the cables used is no more than 2 meter times the numbe...

Page 85: ...guration overview Configure the RS 232 interface using the parameters shown below Use the front panel key to select the baud rate parity and number of data bits see page 80 for more information to con...

Page 86: ...pins DB 25 connector with a male or female pin configuration A male connector has pins inside the connector shell and a female connector has holes inside the connector shell If you cannot find the co...

Page 87: ...ull modem cable included with the HP 34398A Cable Kit This cable has a 9 pin female connector on each end The cable pin diagram is shown below NOTE DB 25 Serial Connection If your computer or terminal...

Page 88: ...k over the interface which means that it has processed a query and has received a new line message terminator it will set the DTR line FALSE This implies that once a query has been sent to the power s...

Page 89: ...bits Make sure that your computer is set up for 1 start bit and 2 stop bits these values are fixed on the power supply Make sure to execute the SYSTem REMote command to place the power supply in the r...

Page 90: ...been off or after a remote interface reset To secure the power supply from the remote interface the security code may contain up to 12 alphanumeric characters as shown below The first character must b...

Page 91: ...ight E3633A and E3634A User s Guide 91 NOTE If you forget your security code you can disable the security feature by adding a jumper inside the power supply and then entering a new code See the Servic...

Page 92: ...y after the CAL MODE message is displayed in the calibration mode enter the security code using the knob and resolution selection keys and then press the Secure key When you press Secure key to save t...

Page 93: ...uide 93 Remote interface operation To unsecure the power supply send the above command with the same code used to secure For example CAL SEC STAT OFF ON code Secure or unsecure the power supply CAL SE...

Page 94: ...d by holding Calibrate key for 5 seconds when you turn on the power supply To secure the power supply press Secure key after the CAL MODE message is displayed in the calibration mode enter the securit...

Page 95: ...ide 95 Remote interface operation To secure the power supply send the above command with the same code as used to unsecure For example CAL SEC STAT OFF ON code Secure or unsecure the power supply CAL...

Page 96: ...s displayed in the calibration mode enter the new security code using control knob and resolution selection keys then press Secure key Changing the code from the front panel also changes the code requ...

Page 97: ...lue The calibration count feature can be performed from the remote interface only The calibration count is stored in non volatile memory and does not change when power has been off or after a remote i...

Page 98: ...e person to contact for a new calibration You can record and read information in the calibration message from the remote interface only The power supply should be unsecured before sending a calibratio...

Page 99: ...elated Commands 123 Calibration Commands 128 RS 232 Interface Commands 131 The SCPI Status Registers 132 Status Reporting Commands 140 An Introduction to the SCPI Language 143 Halting an Output in Pro...

Page 100: ...later sections in this chapter for more complete details on each command Throughout this manual the following conventions are used for SCPI command syntax Square brackets indicate optional keywords or...

Page 101: ...CURRent PROTection LEVel MIN MAX CURRent PROTection STATe 0 1 OFF ON CURRent PROTection STATe CURRent PROTection TRIPped CURRent PROTection CLEar VOLTage LEVel IMMediate AMPLitude voltage MIN MAX UP D...

Page 102: ...Guide VOLTage RANGe P8V 1 P20V 1 P25V 2 P50V 2 LOW HIGH VOLTage RANGe MEASure CURRent DC VOLTage DC INITiate IMMediate TRIGger SEQuence DELay seconds MIN MAX DELay SOURce BUS IMM SOURce TRG 1 For Key...

Page 103: ...634A User s Guide 103 DISPlay WINDow STATe OFF ON STATe TEXT DATA quoted string TEXT DATA TEXT CLEar SYSTem BEEPer IMMediate ERRor VERSion OUTPut RELay STATe OFF ON RELay STATe STATe OFF ON STATe IDN...

Page 104: ...ibration COUNt CURRent DATA numeric value CURRent LEVel MIN MID MAX CURRent PROTection DAC ERRor SECure CODE new code SECure STATe OFF ON code SECure STATe STRing quoted string STRing VOLTage DATA num...

Page 105: ...4A User s Guide 105 STATus QUEStionable CONDition EVENt ENABle enable value ENABle SYSTem ERRor CLS ESE enable value ESE ESR OPC OPC PSC 0 1 PSC SRE enable value SRE STB WAI SYSTem LOCal REMote RWLock...

Page 106: ...e Interface Reference 106 Keysight E3633A and E3634A User s Guide CLS ESR ESE enable value ESE IDN OPC OPC PSC 0 1 PSC RST SAV 1 2 3 RCL 1 2 3 STB SRE enable value SRE TRG TST WAI IEEE 488 2 Common Co...

Page 107: ...etails on outputting command strings and entering data Using the APPLy command The APPLy command provides the most straightforward method to program the power supply over the remote interface For exam...

Page 108: ...igger or an immediate internal trigger as a trigger source By default the BUS trigger source is selected If you want the power supply to use an immediate internal trigger you must select IMMediate For...

Page 109: ...lable and MINimum MAXimum DEFault and reset values of the Keysight E3633A and E3634A power supplies Refer to this table to identify programming values when programming the power supply Table 4 1 Keysi...

Page 110: ...Ranges 0 25V 7A Range 0 50V 4A Range Voltage Programming Range 0 V to 25 75V 0 V to 51 5 V MAX Value 25 75 V 51 5 V MIN Value 0 V 0 V DEFault Value 0 V 0 V RST Value 0 V Current Programming Range 0 A...

Page 111: ...d values only if the programmed values are valid within the presently selected range An execution error will occur if the programmed values are not valid within the selected range You can substitute M...

Page 112: ...quoted string 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 In the above string the first number 8 00000 i...

Page 113: ...y selected You can substitute MINimum or MAXimum in place of a specific value for the current parameter MIN selects the lowest current values of 0 amps MAX selects the highest current values allowed f...

Page 114: ...le the output current will increase or decrease 10 mA if the step size is 0 01 This command is useful when you program the power supply to the allowed minimum resolution At RST the step size is the va...

Page 115: ...tection function of the power supply An overcurrent condition can be cleared with the CURR PROT CLE command after the condition that caused the OCP trip is removed At RST this value Is set to ON CURRe...

Page 116: ...reases the immediate voltage level using the UP or DOWN parameter by a predetermined amount The command VOLTage STEP sets the amount of increase or decrease Notice that a new increment setting will ca...

Page 117: ...ed The returned parameter is a numeric value DEFault gives the minimum resolution step size in unit of volts VOLTage TRIGgered voltage MINimum MAXimum This command programs the pending triggered volta...

Page 118: ...This query returns the state of the overvoltage protection function The returned parameter is 0 OFF or 1 ON VOLTage PROTection TRIPped This query returns a 1 if the overvoltage protection circuit is t...

Page 119: ...ls of the programming ranges of the Keysight E3634A model P20V 1 or HIGH is the identifier for the 20V 10A 1 range and P8V 1 or LOW is for the 8V 20A 1 range At RST the 8V 20A 1 or 25V 7A 2 range is s...

Page 120: ...utput is set to the triggered level immediately But if the trigger source is the bus the power supply is set to the triggered level after receiving the Group Execute Trigger GET or TRG command Trigger...

Page 121: ...s recognized You can use the OPC operation complete query command or the OPC operation complete command to signal when the operation is complete The OPC command returns 1 to the output buffer when the...

Page 122: ...econds MAX 3600 seconds At RST this value is set to 0 seconds TRIGger DELay This command queries the trigger delay TRIGger SOURce BUS IMMediate This command selects the source from which the power sup...

Page 123: ...This command displays a message on the front panel The power supply will display up to 12 characters in a message any additional characters are truncated Commas periods and semicolons share a display...

Page 124: ...V The levels are reversed when the OUTPut RELay state is OFF At RST the OUTPut RELay state is OFF OUTPut RELay This command returns the state of the TTL relay logic signals See also OUTP REL command...

Page 125: ...nds with 0 No error The error queue is cleared when power has been off or after a CLS clear status command has been executed The RST reset command does not clear the error queue SYSTem VERSion This co...

Page 126: ...634A State CURR 20 A 7 A CURR STEP 0 32 mA typical value 0 13 mA typical value CURR TRIG 20 A 7 A CURR PROT 22 0 A 7 5 A CURR PROT STAT ON ON DISP ON ON OUTP OFF OFF OUTP REL OFF OFF TRIG DEL 0 0 TRIG...

Page 127: ...available to store operating states of the power supply The state storage feature remembers the states or values of the following commands CURR CURR STEP CURR TRIG CURR PROT CURR PROT STAT DISP OUTP...

Page 128: ...the output state is ON It enters a current value that you obtained by reading an external meter You must first select the minimum calibration level CAL CURR LEV MIN for the value being entered You mus...

Page 129: ...e To change the security code first unsecure the power supply using the old security code Then enter the new code The calibration code may contain up to 12 characters over the remote interface but the...

Page 130: ...s are then stored in non volatile memory CALibration VOLTage LEVel MINimum MIDdle MAXimum This command can only be used after calibration is unsecured and the output state is ON It sets the power supp...

Page 131: ...ront panel except the Local key are disabled SYSTem RWLock This command places the power supply in the remote mode for RS 232 operation This command is the same as the SYST REM command except that all...

Page 132: ...t is set subsequent state changes are ignored Bits in an event register are automatically cleared by a query of that register such as ESR or STAT QUES EVEN or by sending the CLS clear status command A...

Page 133: ...Remote Interface Reference 4 Keysight E3633A and E3634A User s Guide 133 SCPI Status System...

Page 134: ...and bit 10 reports that the overcurrent protection circuit has tripped To read the register send STATus QUEStionable Table 4 3 Bit Definitions Questionable Status Register The questionable status even...

Page 135: ...d one or more errors in the power supply s error queue Read the error queue using the SYST ERR command Bit Decimal Value Definition 0 OPC 1 Operation Complete All commands prior to and including an OP...

Page 136: ...ts 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 Status Byte register Bit...

Page 137: ...terrupt to use this capability Use the Status Byte enable register SRE command to select which summary bits will set the low level IEEE 488 service request signal When bit 6 request service is set in...

Page 138: ...to your bus controller The power supply subsequently clears bit 4 only after all messages have been read from the output buffer To interrupt your bus controller using SRQ 1 Send a device clear message...

Page 139: ...it 0 is set in the Standard Event register 6 Use a serial poll to check to see when bit 5 standard event is set in the Status Byte summary register You could also configure the power supply for an SRQ...

Page 140: ...in the queue the most recent error is replaced with 350 Queue overflow No additional errors are stored until you remove errors from the queue If no errors have occurred when you read the error queue t...

Page 141: ...register The power supply returns a binary weighted decimal representing the bits set in the enable register CLS This command clears all event registers and Status Byte register ESE enable value This...

Page 142: ...e value This command enables bits in the Status Byte enable register SRE This command queries the Status Byte Enable register The power supply returns a decimal value which corresponds to the binary w...

Page 143: ...a hierarchical structure also known as a tree system In this system associated commands are grouped together under a common node or root thus forming subsystems A portion of the SOURce subsystem is s...

Page 144: ...value for the enclosed parameter For example the above syntax statement shows the current parameter enclosed in triangle brackets The brackets are not sent with the command string You must specify a...

Page 145: ...icolon to link commands from different subsystems For example in the following command string an error is generated if you do not use the colon and semicolon Using the MIN and MAX parameters You can s...

Page 146: ...nterpreted as a new line character and can be used to terminate a command string in place of a new line character A carriage return followed by a new line is also accepted Command string termination w...

Page 147: ...parameters Commands that require numeric parameters will accept all commonly used decimal representations of numbers including optional signs decimal points and scientific notation Special values for...

Page 148: ...you query a boolean setting the power supply will always return 0 or 1 The following command uses a boolean parameter Strings parameters String parameters can contain virtually any set of ASCII chara...

Page 149: ...clear over the GPIB interface using Keysight BASIC The following statement shows how to send a device clear over the GPIB interface using the GPIB Command Library for C or QuickBASIC CLEAR 705 IEEE 4...

Page 150: ...on documented commands duplicate the functionality of a command already described in this manual SCPI confirmed commands The following table lists the SCPI confirmed commands that are used by the powe...

Page 151: ...d CURRent PROTection CLEar SOURce VOLTage LEVel IMMediate AMPLitude voltage MIN MAX UP DOWN VOLTage LEVel IMMediate AMPLitude MIN MAX VOLTage LEVel IMMediate STEP INCRement numeric value DEFault VOLTa...

Page 152: ...E3634A User s Guide STATus QUEStionable CONDition QUEStionable EVENt QUEStionable ENABle enable value QUEStionable ENABle SYSTem BEEPer IMMediate ERRor VERSion TRIGger SEQuence DELay seconds MIN MAX S...

Page 153: ...d with the SCPI standard in mind and they follow all of the command syntax rules defined by the standard Non SCPI commands APPLy voltage DEF MIN MAX current DEF MIN MAX APPLy CALibration COUNt CURRent...

Page 154: ...CLS IFC Interface Clear ESE enable value REN Remote Enable ESE SRQ Service Request Enable ESR IDN Addressed Commands OPC OPC DCL Device Clear PSC 0 1 EOI End or Identify PSC GET Group Execute Trigger...

Page 155: ...Keysight E3633A and E3634A DC Power Supplies User s Guide 155 5 Error Messages Error Messages 156 Execution Errors 157 Self Test Errors 165 Calibration Errors 167...

Page 156: ...remote interface or NO ERRORS from the front panel The error queue is cleared by the CLS clear status command or when power is cycled The errors are also cleared when you read the queue The RST reset...

Page 157: ...r An invalid separator was found in the command string You may have used a comma instead of a colon semicolon or blank space or you may have used a blank space instead of a comma Example TRIG SOUR BUS...

Page 158: ...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 Example TRIGG DEL 3 114 a He...

Page 159: ...uffix was incorrectly specified for a numeric parameter You may have misspelled the suffix or the numeric parameter does not accept a suffix Example TRIG DEL 0 5 SECS 131 Invalid suffix A suffix was i...

Page 160: ...ffix 141 Invalid character data Either the character data element contained an invalid character or the particular element received was not valid for the header 144 Character data too long The charact...

Page 161: ...Trigger GET or TRG was received but the trigger was ignored Make sure that the trigger source should be selected to the bus and the trigger subsystem should be initiated by INIT IMM command 213 Init i...

Page 162: ...350 Queue overflow The error queue is full because more than 20 errors have occurred No additional errors are stored until you remove errors from the queue The error queue is cleared when power has be...

Page 163: ...g Example IDN SYST VERS 501 Isolator UART framing error 502 Isolator UART overrun error 503 a SPI data error Data error was detected during the communication between the main controller U101 and the I...

Page 164: ...Error Messages 164 Keysight E3633A and E3634A User s Guide 550 Command not allowed in local You should always execute the SYSTem REMote command before sending other commands over the RS 232 interface...

Page 165: ...spond 602 RAM read write failed 603 A D sync stuck 604 A D slope convergence failed 605 Cannot calibrate rundown gain 606 Rundown gain out of range 607 Rundown too noisy 608 Serial configuration readb...

Page 166: ...5 Error Messages 166 Keysight E3633A and E3634A User s Guide 631 System DAC test failed 632 Hardware test failed...

Page 167: ...703 Invalid secure code An invalid calibration security code was received when attempting to unsecure or secure the power supply You must use the same security code to unsecure the power supply as was...

Page 168: ...new calibration constants are not stored in the non volatile memory 715 Bad OCP cal data The overcurrent protection calibration constant is out of range Note that the new calibration constants are no...

Page 169: ...failed store recall data in location 1 744 Cal checksum failed store recall data in location 2 745 Cal checksum failed store recall data in location 3 746 Cal checksum failed DAC cal constants 747 Ca...

Page 170: ...5 Error Messages 170 Keysight E3633A and E3634A User s Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK...

Page 171: ...e examples in this chapter have been tested on a PC running Windows 3 1 Windows 95 or Windows NT 4 0 The examples are written for use over GPIB IEEE 488 or RS 232 But the examples for use over the RS...

Page 172: ...lib Windows 95 NT and visa h file to the lib and include development directory These are usually found in the c vxipnp win win95 or winnt lib msc or c vxipnp win win95 or winnt include directory Diode...

Page 173: ...0 6 voltage 0 8001 voltage 0 02 printf 3f voltage Display diode voltage Set output voltage ErrorStatus viPrintf power_supply Volt f n voltage if bGPIB delay 500 500 msec wating for RS 232 port CheckEr...

Page 174: ...use with GPIB 7 address use GPIB 7 INSTR address format strcpy VISA_address GPIB strcat VISA_address GPIB_Address strcat VISA_address INSTR else For use with COM2 port use ASRL2 INSTR address format...

Page 175: ...00 Unit is milliseconds pdest strchr commandString Search for query command if pdest NULL ErrorStatus viScanf power_supply s ReadBuffer CheckError Can t Read From Driver strcpy pString ReadBuffer void...

Page 176: ...then record the response on the worksheet The example on the following pages characterizes a component across the terminals of the power supply This example reads 11 voltages from a worksheet programs...

Page 177: ...dows 95 NT go to the Insert menu choose Module The Module window appears Then type the text as shown starting on page 141 This module will configure all of the overhead required to communicate with th...

Page 178: ...rContents Dim I As Integer bGPIB True To use RS 232 set the bGPIB to False OpenPort SendSCPI RST Set power on condition SendSCPI Output on Turn on the output For I 5 To 15 SendSCPI Volt Str Cells I 1...

Page 179: ...rStatus viWrite power_supply ByVal commandString Len commandString _actual CheckError Can t Write to Device If bGPIB False Then delay 0 5 End If If InStr commandString Then ErrorStatus viRead power_su...

Page 180: ...d Lib VISA DLL Alias 256 ByVal vi As Long ByVal Buffer As String ByVal count As Long retCount As Long As Long Declare Function viWrite Lib VISA DLL Alias 257 ByVal vi As Long ByVal Buffer As String By...

Page 181: ...633A and Keysight E3634A are high performance instruments capable of delivering clean DC power But to take full advantage of the performance characteristics designed into the power supply certain basi...

Page 182: ...a constant output voltage Because the variable resistance of Figure 7 1 is actually one or more power transistor operating in the linear class A mode supplies with this type of regulator are often cal...

Page 183: ...reliability The Keysight E3633A and Keysight E3634A contain a linear regulated power supply It is controlled by a control circuit that provides voltages to program the outputs The power supply sends...

Page 184: ...dance at all frequencies Thus as Figure 7 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...

Page 185: ...ge mode The load at point 1 has a relatively high resistance value compared to RC the output voltage is at the voltage setting and the output current is less than the current setting In this case the...

Page 186: ...ce connected from either terminal to earth ground The first is called normal mode voltage noise and the second common mode current noise Figure 7 6 shows the simplified diagram of common mode and norm...

Page 187: ...rop Using the remote sense leads at the load will compensate for lead resistance in the load leads Figure 7 6 Simplified diagram of common mode and normal mode sources of noise When the load changes v...

Page 188: ...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 impe...

Page 189: ...ial 7 Keysight E3633A and E3634A User s Guide 189 WARNING To satisfy safety requirements load wires must be heavy enough not to overheat while carrying the short circuit output current of the power su...

Page 190: ...oportional to the impedance of the load leads compared with the output impedance of the power supply With remote voltage sensing a feature included in the Keysight E3633A and E3634A power supplies it...

Page 191: ...ad capacitance internal and external Inductive loading Inductive loads present no loop stability problems in constant voltage mode In constant current mode inductive loads form a parallel resonance wi...

Page 192: ...pump current into the supply without risking loss of regulation and possible damage These effects can be avoided by preloading the output with a dummy load resistor The dummy load resistor should dra...

Page 193: ...als so that if operated in series with other power supplies damage will not occur if the load is short circuited or if one power supply is turned on separately from its series partners When series con...

Page 194: ...new output is programmed the power supply regulator circuit senses that the output is less than desired and turns on the series regulator to its maximum value IL the current limit or constant current...

Page 195: ...ince the control circuit can in no way cause the series regulator transistors to conduct backwards the output capacitor can only be discharged through the load resistor and internal current source IS...

Page 196: ...power supplies incorporate circuitry to reduce the internal power dissipation of the power supply and therefore reduce the internal heat of the power supply Maximum internal power dissipation occurs...

Page 197: ...ance specifications are listed in the following pages Specifications are warranted in the temperature range of 0 to 40 C with a resistive load Supplemental characteristics which are not warranted but...

Page 198: ...nt panel with respect to actual output 25 C 5 C of output offset b This specification may degrade when the unit is subjected to an RF field 3V meter Voltage 0 05 5 mV Current 0 15 5 mA Ripple and Nois...

Page 199: ...rage time for output voltage to begin to change after receipt of digital data when the power supply is connected directly to the GPIB or RS 232 is less than 100 msec OVP and OCP accuracy of output off...

Page 200: ...0 6 V 0 to 10 3 A 0 to 51 5V 0 to 4 12 A OVP 1 V to 22 V 1 V to 55 V Voltage Programming Speed Maximum time required for output voltage to settle within 1 of its total excursion for resistive load Exc...

Page 201: ...ut control is set to less than 1 V If the output control is set to 1 V or higher there is no overshoot Programming language SCPI Standard Commands for Programmable Instruments State Storage Memory Thr...

Page 202: ...rly to 50 at 55 C maximum temperature Storage temperature 20 to 70 C for storage environment Environmental Conditions Designed for indoor use in an installation category II pollution degree 2 environm...

Page 203: ...and E3634A User s Guide 203 Weight Weight MY53xx6xxx Figure 8 1 Dimensions of Keysight E3633A and E3634A power supplies Net 9 5 kg 21 lb Shipping 12 kg 26 lb Net 11 4 kg E3633A 10 9 kg E3634A Shippin...

Page 204: ...8 Specifications 204 Keysight E3633A and E3634A User s Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK...

Page 205: ...is subject to change without notice Always refer to the Keysight website for the latest revision Keysight Technologies 1998 2020 Edition 9 September 8 2020 Printed in Malaysia E3634 90001 E3634 90001...

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