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Array electronic 367 Series, User Manual

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on the lab bench or as a controlled power supply. This chapter gives specific details 
on the operation of the ARRAY 367X power supply. 

 
An Overview of ARRAY 367X Operation 
 

The ARRAY 367X has a very precise regulating properties and respond quickly to 
variations of the line and load. These supplies also exhibit low ripple and noise, the 
tolerance of ambient temperature changes, circuit simplicity, and a high reliability. 
 
The ARRAY 367X is controlled by a control circuit that provides voltages to program 
the outputs. The power supply sends the output voltages back to the control circuit. 
The control circuits receive information from the front panel and send instant 
information to the display. At the same time, the control circuit also receives and 
returns the corresponding values over the remote interface. 

 

The remote interface is isolated from the control circuit and the power supply.   

 
Output Characteristics 

An ideal constant-voltage power supply would have a zero output impedance at all 
frequencies. Thus, the voltage would remain perfectly constant in spite of any changes 
in output current demanded by the load. The ideal constant-current power supply 
exhibits infinite output impedance at all frequencies. Thus the output voltage of the 
ideal constant-current power supply would change correspondingly when a load 
change occurred in order to maintain its output current at a constant value. 

 
 
 
 
 
 
 
 
 

Ideal Constant Voltage Mode    Ideal Constant Current Mode   

 
The ARRAY 367X power supply outputs can operate in either constant-voltage (CV) 
mode or constant-current (CC) mode. Under certain fault conditions, the power 
supply can not operate in either CV or CC mode and becomes unregulated. 
Figure below shows the operating modes of the three outputs of the power supply. The 
operating point of one supply will be either above or below the line RL = RC. This 
line represents a load where the output voltage and the output current are equal to the 
voltage and current setting. When the load RL is greater than RC, the output voltage 
will dominate since the current will be less then the current setting. The power supply 
is said to be in constant-voltage mode. The load at point A has a relatively high 

Summary of Contents for 367 Series

Page 1: ...1 USER S MANUAL SWITCHING MODE DC POWER SUPPLY ARRAY 367X ARRAY ELECTRONIC ...

Page 2: ... design and test environments Versatile Bench Top Features High definition liquid crystal display Full featured keyboard and knobs High efficient switching mode power supply The same continuous adjustment 0 Vout as the linear power supply Low ripple and noise which rivals the linear power supply Excellent line and load regulation Up to 10 operating states storage and recall Portable ruggedized cas...

Page 3: ... 2 Sense terminals Tests remote voltage the positive pole is in red while the negative pole is in black 3 Earth ground terminal It is connected to the chassis and earth ground 4 Supply output terminals Supply output the positive output terminal is in red while the negative output terminal is in black 5 Output on off key Turns the power supply on off 6 Left Right key Moves the blinking digit to lef...

Page 4: ... value or exits current operation 20 Enter key Enter Confirms present setting values or option 21 Display screen Shows parameters and status of power supply 22 ERR annunciator When some error is detected ERR annunciator is on 23 REM annunciator When the power supply is in remote control mode REM annunciator is on Front Panel Display Messages 0 000V Display present voltage value 0 000A Display pres...

Page 5: ...ops its rated outputs and responds to operation from the front panel properly Front Panel Operation It describes the use of front panel keys and knobs in detail and how to use them to operate the power supply from the front panel And it also shows how to configure the power supply for the remote interface and introduces the calibration features in brief Remote Interface Reference It contains the r...

Page 6: ... Tutorial It describes basic operation of the power supply and gives specific details on the operation and use of ARRAY 367X power supplies Specifications It lists the power supply s basic specifications ...

Page 7: ...Checkout 17 Voltage Output Checkout 17 Current Output Checkout 18 Chapter 3 Front Panel Operation 20 Front Panel Operation 20 Front Panel Operation Overview 20 Output on off 20 Constant Voltage Output Setting 21 Connecting a load to the relevant output terminals 21 Turning on the power supply 21 Setting desired output voltage 21 Setting maximum current 21 Enabling the outputs 22 Verifying that the...

Page 8: ... the SCPI Language 32 Command Format Used in This Manual 33 Command Separators 34 Using the MIN and MAX Parameters 34 Querying Parameter Settings 34 SCPI Command Terminators 35 SCPI Parameter Types 35 Numeric Parameters 35 Discrete Parameters 35 Boolean Parameters 35 String Parameters 35 Output Setting and Operation Commands 36 Trigger Commands 36 System Related Commands 36 Calibration Commands 37...

Page 9: ...SCPI Conformance Information 55 SCPI Confirmed Commands 55 Device Specific Commands 57 Chapter 5 Application Programs 58 Application Programs 58 RS 232 Operation Using QuickBACSIC 58 Chapter 6 Tutorial 59 Tutorial 59 An Overview of ARRAY 367X Operation 59 Output Characteristics 59 Unregulated State 60 Unwanted Signals 60 Connecting the Load 61 Output Isolation 61 Multiple Loads 61 Considerations 6...

Page 10: ...10 Command Processing Time 65 Supplemental Characteristics 65 APPENDIX Error Messages 67 Error Messages 67 Execution Errors 67 Self Test Errors 70 Calibration Errors 71 ...

Page 11: ...features wide supply input voltage from 180 265AC high power factor and a minimum output of 0V Output voltage or current can be adjusted independently from front panel or controlled over RS 232 USB or GPIB interface Buttons and knobs on the front panel can be used to adjust voltage and current of a selected output calibrate again without opening the case when the precision falls down including cha...

Page 12: ...ard against unauthorized calibration by using the Standard calibration protection function Installation Initial Inspection When you receive your power supply please check it for any obvious damage that may have occurred during shipment or resulted from other reasons If any damage is found contact the carrier and the Sales Office immediately in order to deal with it in time Keep the original packin...

Page 13: ... the heat through the fan outlet on the rear panel Sufficient space must be left at the rear and two sides of the cabinet for air circulation when the power supply is installed Please remove the rubber bumpers for rack mounting Rack Mounting The power supply could be installed in a standard 19 inch rack Please remove the rubber bumpers at the front and rear end of the power supply piror to install...

Page 14: ...ply features for later use it is suggested that both the experienced and the inexperienced users should read this chapter prior to operation Preliminary Checkout ARRAY 367X power supply can be used from a rated 180 V to 265 V single phase AC power source at 47 to 63 Hz There is an indication below the AC power inlet on the rear panel showing the rated input voltage set for the power supply at the ...

Page 15: ...lacement 1 Replace the fuse Step 1 Remove the fuse holder below AC power inlet Step 2 Replace the fuse with what meets the requirements Step 3 Put back the fuse holder For 180V 265V AC operation 10AT fuse is used ...

Page 16: ...2 Self test accomplished If there is no error or abnormity has been detected during self testing the supply will enter into power on reset state and the output will be disabled In this figure OFF indicates that supply output is forbidden 3 Enabling the outputs Press Output on off to enable the outputs The OFF annunciator on the lower right corner of the display turns off while the ON and CV annunc...

Page 17: ...nob control on front panel for the supply Knob Checkout When the power supply output is on and the display is in monitor mode move the blinking digit to voltage value displayed by pressing the key Left Turn the knob clockwise or counter clockwise to check that the voltmeter increases or decreases as the voltage changes and the ammeter indicates nearly zero Key Checkout When the power supply output...

Page 18: ... test lead 4 Adjust the voltage limit value to 1 0 V Adjust the voltage limit to 1 0 V to assure CC operation Please see related chapters about voltage and current setting from front panel in this manual for specific operations 5 Check that the front panel ammeter properly responds to the key and knob operations form the front panel Knob Checkout When the output of the power supply is turned on an...

Page 19: ... Adjust the current value to 0A and then gradually to the maximum rated value with the knobs or keys If an error has been detected during the output checkout procedures the ERROR annunciator will turn on Refer to the related chapters in appendix for more specific error information ...

Page 20: ...he output of the power supply is enabled CV CC or Unreg will be displayed in the lower right corner of the display CV indicates that the supply source is in constant voltage state CC indicates that the power supply is in constant current state and Unreg indicates that the power supply is operating in unstable state Neither in constant voltage nor constant current status For example if the power su...

Page 21: ... 2 Turning on the power supply Press the Power on off button in the front panel The power supply will go into power on reset state namely the power supply is off 3 Setting desired output voltage The desired output voltage can be set directly by pressing number keys or using Left Right key together with the knob 1 Using number keys and Enter key to input Press Vset to enter into voltage setting sta...

Page 22: ...ue Therefore please choose a higher current limit value 3 4 Constant Current Output Setting When the power supply is in constant current mode the current will output at a constant value and it will not change with the load while the voltage will The CC annunciator in the lower right corner of the display will turn on when the power supply is in constant current mode The operation methods of consta...

Page 23: ... the wrong value to input again Press Enter key to confirm the current setting value 2 Using Left Right keys knob and Enter key to input Press Iset to enter into current setting state Press Left Right keys to move the blinking digit to the corresponding digit of the value Increase or decrease the relevant value by turning the knob clockwise or counter clockwise then use Left Right keys to move to ...

Page 24: ...Odd Data Bit 5 6 7 8 Data Bit 5 6 7 8 Stop Bit 1 2 Stop Bit 1 2 RS232 Interface Flow Control On Off Flow Control On Off USB Interface Selecting USB GPIB Interface GPIB Address 5 GPIB Address Address Value Notes Except the parameters about knob key sound and interface configuration other parameters in the main menu will not be saved when the power supply is switched off If you would like to store r...

Page 25: ...ved in the EEPROM specified by Location 1 Step Operational Details Display Information 1 Set voltage to 30V Then turn off the power supply 30 000V 0 000A 0 000W OFF 2 Press 2nd Recall keys to enter into recall menu Recall 0 3 Press keys or adjust the knob to select recall location as 1 Recall 1 4 Press Enter key to confirm and exit recall menu simultaneously 5 000V 2 000A 0 000W CV 3 7 Error Messa...

Page 26: ... abnormal latched state Except specific operations the supply will stop responding to other commands For example when the temperature is too high supply output will turn off and beep to give an alarm OT will be showed in the lower right corner of the display and the power supply will not respond to other commands 3 9 1 Abnormal Latched State Clearance When the power supply enters into abnormal lat...

Page 27: ...calibration Calibration Instrument Multimeter DVM FLUKE 45 measures the DC current KEITHLEY 2000 measures the DC voltage Power supply CHROMA 61601 AC power supply Cautions When the calibration is conducted the ambient temperature should be within the range of 25 2 All testing instruments and the supply power must be preheated for 30 minutes before the calibration As when the FLUKE 45 measures a cu...

Page 28: ...1 CV Mode Calibration In this mode three voltage points 0 5V 22V 34 5V should be calibrated 3 1 1 Wiring 3 1 2 0 5V Calibration Press Enter key you will see the following figure in the display Input the value you read from KEITHLEY 2000 which is retained to four decimal places Press Clear key to remove the wrong input value of current digit Then press Enter key to confirm 3 1 3 22 V Calibration Pr...

Page 29: ... read from KEITHLEY 2000 which is retained to four decimal places Press Clear key to remove the wrong input value of current digit Then press Enter key to confirm and exit to calibration menu Now voltage calibration is completed 3 2 CC Mode Calibration In this mode three current points 0 5A 6A 9A should be calibrated 3 2 1 Wiring 3 2 2 0 5A Calibration Press Enter key you will see the following fi...

Page 30: ...t value of present digit Then press Enter key to confirm 3 2 4 9A Calibration Press Enter key to verify and then the display will show as follows Input the value you read from FLUEK 45 which is retained to four decimal places Press Clear key to remove the wrong input value of present digit Then press Enter key to confirm 3 3 OV Calibration OV calibration is a kind of automatic calibration without ...

Page 31: ...tput in Progress z SCPI Conformance Information If this is the first time you use the SCPI language it is suggested intensely to read this chapter attentively in order to become familiar with the language before you attempt to program the power supply SCPI Command Summary This section mainly introduces the SCPI Standard Commands for Programmable Instruments commands available to program the power ...

Page 32: ...re grouped together under a common node or root thus forming subsystems A portion of the SOURce subsystem is shown below to illustrate the tree system SOURce CURRent LEVel IMMediate AMPLitude current MIN MAX AMPLitude MIN MAX TRIGgered AMPLitude current MIN MAX AMPLitude MIN MAX LIMit AMPLitude current MIN MAX AMPLitude MIN MAX VOLTage LEVel IMMediate AMPLitude voltage MIN MAX AMPLitude MIN MAX TR...

Page 33: ...use of the incomplete spelling Braces enclose the parameter choices for a given command string The braces are not sent with the command string A vertical bar separates multiple parameter choices for a given command string Triangle brackets indicate that you must specify a value for the enclosed parameter For example the above syntax statement shows the current parameter enclosed in triangle bracke...

Page 34: ...string an error is generated if you do not use the colon and semicolon MEAS VOLT SOUR CURR MIN Using the MIN and MAX Parameters You can substitute MINimum or MAXimum for the parameter of 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 cur...

Page 35: ... MAXimum and DEFault are also accepted 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 MINimum MAXimum Discrete Parameters Discrete parameters are used to program settings that have a limited n...

Page 36: ...nt LEVel IMMediate AMPLitude current MIN MAX CURRent LEVel IMMediate AMPLitude MIN MAX CURRent LEVel LIMit AMPLitude current MIN MAX DEF CURRent LEVel LIMit AMPLitude MIN MAX DEF CURRent LEVel TRIGgered AMPLitude current MIN MAX CURRent LEVel TRIGgered AMPLitude MIN MAX VOLTage LEVel IMMediate AMPLitude current MIN MAX VOLTage LEVel IMMediate AMPLitude MIN MAX VOLTage LEVel LIMit AMPLitude current...

Page 37: ...value CURRent LEVel MIN MAX SECure CODE new code SECure STATe OFF ON new code SECure STATe STRing quoted string STRing VOLTage DATA numeric value VOLTage LEVel MIN MAX Status Reporting Commands STATus QUEStionable EVENt ENABle enable value ENABle INSTrument EVENt INSTrument ENABle enable value INSTrument ENABle INSTrument ISUMmary n EVENt INSTrument ISUMmary n CONDition INSTrument ISUMmary n ENABl...

Page 38: ...Ly command provides the most straightforward method to program the power supply over the remote interface such as to control one output or triple outputs of power supply and to read the immediate output value of each supply Give the following example to illustrate APPLY 3 3 2 0 Set the supply to an output of 3 3V rated at 2 0A APLLY 12 0 0 5 Set the supply to an output of 12 0V rated at 0 5A Using...

Page 39: ... system version and return the version number accordingly Selecting a Trigger Source The power supply will accept a bus software trigger 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 example TRIG SOUR IMM Select an immediate internal trigger as a trig...

Page 40: ...mmands This section describes the low level commands used to program the output of power supply Although the APPLy command provides the most straightforward method to program the output of power supply the low level commands give you more flexibility to change individual parameters which include output selection commands measurement commands output on off and tracking operation commands and output...

Page 41: ...rns the immediate current value at the present output terminals of the power supply or the maximum and minimum programmable current levels of the selected output For example CURR Query and return the immediate current value of the output terminals CURR MAX Query and return the maximum programmable current level of the output terminals CURR MIN Qurery and return the minimum programmable current lev...

Page 42: ... VOLTage LEVel IMMediate AMPLitude MIN MAX This command checks and returns the immediate voltage value at the present output terminals of the power supply or the maximum and minimum programmable voltage levels of the selected output For example VOLT Query and return the immediate voltage value of the output terminals VOLT MAX Query and return the maximum programmable voltage levels of the output t...

Page 43: ...level by using CURRent TRIGgered and VOLTage TRIGgered 2 Specify the source from which the power supply will accept the trigger The power supply will accept a bus software trigger or an immediate trigger 3 Set the time delay between the detection of the trigger on the specified trigger source and the start of any corresponding output change Notice that the time delay is valid for only the bus trig...

Page 44: ...nternal immediate TRIGger SEQuence DELay second MINimum MAXimum This command sets 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 Select from 0 to 3600 seconds MIN 0 second MAX 3600 seconds At RST this value is set to 0 second TRIGger SEQuence DELay This command queries the trigger delay s...

Page 45: ...cause which indicate the start and the end of the character string message The power supply will not send the output to the display when a message is shown on the front panel DISPlay WINDow TEXT DATA This command queries the message sent to the front panel and returns a quoted string DISPlay WINDow TEXT CLEar This command clears the message displayed on the front panel and makes the display exit t...

Page 46: ...LEV IMM Output dependent value CURR LEV TRIG Output dependent value DISP STAT ON INST SEL P6V INST COUP NONE OUTP STAT OFF OUTP TRAC OFF TRIG DEL 0 TRIG SOUR BUS VOLT LEV IMM 0 VOLT LEV TRIG 0 The reset operation sets the output current to the maximum value TST This query performs a complete self test of the power supply and returns 0 if the self test passes or 1 if it fails SAV 0 2 9 This command...

Page 47: ...ered and the low end point MIN must be selected and entered first CALibration SECure CODE new code This command enters a new security code To change the security code first unsecure the power supply with the old security code Then enter the new one CALibration SECure STATe OFF ON code This command secures or unsecures the power supply for calibration CALibration SECure STATe This command queries a...

Page 48: ...or on the display is on SYSTem RWLock This command places the power supply in the remote mode All keys on the front panel including the Local key are disabled The Rmt annunciator on the display is on Ctrl C This command clears the operation in progress over remote interface and discards any pending output data The SCPI Status Registers All SCPI instruments implement status registers in the same wa...

Page 49: ...ister defines which bits in the corresponding event register are logically ORed together to form a single summary bit Enable registers are both readable and writable Querying an enable register will not clear it The CLS clear status command does not clear enable registers but it does clear the bits in the event registers To enable bits in an enable register you must write a decimal value which cor...

Page 50: ... ESE Output Buffer Operation Complete Query Error Device Depenent Error Execution Error Command Error Power On Serial Poll SPOLL SRE value SRE STB The Questionable Status Register The questionable status register provides information relate to the abnormal operation of the power supply When Bit 0 is 1 the constant voltage mode is abnormal and when Bit 1 is 1 the constant current mode is abnormal B...

Page 51: ...ry the event register with STATus QUEStionable EVENt Status Questionable Event register command The questionable status enable register is cleared when you execute STATus QUEStionable ENABle 0 command The Standard Event Register The standard event register reports the following instrument events power on detected errors command syntax errors command execution errors self test or calibration errors...

Page 52: ... query the event register using the ESR Event Status register command For example if 28 4 8 16 is returned when you query the status of the standard event register it is convinced that QYE DDE and EXE conditions have occurred The standard event enable register is cleared when 1 You execute the ESE 0 command 2 You turn on the power and have configured the power supply using the PSC 1 command 3 The ...

Page 53: ...register it is convinced that QUES and MAV conditions have occurred The status byte enable register Request Service is cleared when 1 You execute the SRE 0 command 2 You turn on the power and have configured the power supply using the PSC 1 command 3 The enable register will not be cleared at power on if you have configured the power supply using PSC 0 For example you must send SRE 96 32 64 to ena...

Page 54: ...rted to the status byte STATus QUEStionable ENABle This command queries the questionable status enable register The power supply returns a decimal value representing the bits set in the enable register and corresponding to the binary weighted sum of all bits in the register CLS This command clears all event registers and status yte register ESE enable value This command enables bits in the standar...

Page 55: ...nstrument command The STB command returns the same result as a serial poll but the Request Service bit bit 6 is not cleared if a serial poll has occurred WAI This command instructs 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 SCPI Conformance Information The SCPI commands relevant to the ...

Page 56: ...RIGgered AMPLitude voltage MIN MAX VOLTage LEVel TRIGgered AMPLitude MIN MAX STATus QUEStionable EVENt QUEStionable CONDition QUEStionable ENABle QUEStionable ENABle enable value SYSTem BEEPer IMMediate ERRor VERSion TRIGger SEQuence DELay second MIN MAX SEQuence DELay SEQuence SOURce BUS IMM SEQuence SOURce INITiate IMMediate Device Specific Commands The following commands are specific to the ARR...

Page 57: ...CALar VOLTage DC SCALar TEMPerature SOURce CURRent LEVel LIMit AMPLitude current MIN MAX DEF CURRent LEVel LIMit AMPLitude MIN MAX DEF VOLTage LEVel LIMit AMPLitude voltage MIN MAX DEF VOLTage LEVel LIMit AMPLitude MIN MAX DEF SYSTem LOCal REMote RWLock Chapter 5 Application Programs Application Programs RS 232 Operation Using QuickBACSIC The following example shows how to send command instruction...

Page 58: ... line automatically Visit Random File number 1 1 Length 1000 PRINT 1 SYST REM Put the power supply into the remote operation mode PRINT 1 OUTP ON Enable the outputs PRINT 1 SYST ERR Error message LINE INPUT 1 Recv Receive the data from the power supply PRINT SYST ERR Recv Output the received data on the display Chapter 6 Tutorial Tutorial The ARRAY 367X is a high performance instrument capable of ...

Page 59: ...all frequencies Thus the voltage would remain perfectly constant in spite of any changes in output current demanded by the load The ideal constant current power supply exhibits infinite output impedance at all frequencies Thus the output voltage of the ideal constant current power supply would change correspondingly when a load change occurred in order to maintain its output current at a constant ...

Page 60: ... the input AC voltage below the specifications or caused by non resistive load For example when the output is programmed for a large voltage step the output capacitor or a large capacitive load will charge up at the current limit setting During the ramp up of the output voltage the power supply will be in the unregulated mode During the transition from CV to CC as the output is shorted the unregul...

Page 61: ...ds and takes full advantage of the low output impedance of the power supply Each pair of wires should be as short as possible and twisted or shielded to reduce lead inductance and noise pick up And for safety consideration connecting lead with a large diameter is preferred to avoid overheat in heavy current condition If a shield is used connect one end to the power supply ground terminal and leave...

Page 62: ... power supply responds to the output Pulse Load In some applications the load current varies within a large range The constant current circuit limits the output current Some peak loading exceeding the current limit can be obtained from the output capacitor To stay within the specifications for the output the current limit should be set greater than the peak current expected or the supply may go in...

Page 63: ...ty and temperature will affect the reliability The lower the temperature of the components the better the reliability When the power supply is in operation an internal fan installed in the rear of power supply can keep the temperature of components low To assist in cooling please leave some room at the sides and rear of the power supply ...

Page 64: ...Vrms 16mVrms 16mVrms 20mVrms Voltage peak to peak value 20mVp p 25mVp p 80mVp p 80mVp p Current 8mArms 6mArms 5mArms 4mArms Common Mode Current 1 5mArms 1 5mArms 1 5mArms 1 5mArms Load Regulation Voltage 3mV 3mV 10mV 10mV Current 2mA 2mA 2mA 2mA Line Regulation Voltage 2mV 2mV 10mV 10mV Current 1mA 1mA 1mA 1mA Programming Accuracy Voltage 0 03 5mV 0 03 10mV 0 03 15m V 0 03 20mV Current 0 5 6mA 0 5...

Page 65: ...msec The Other Commands 50msec Supplemental Characteristics Output Programming Range maximum programmable values 3672A 3673A 3674A 3675A Voltage 0 35 2V 0 80 2V 0 120 2V 0 200 2V Current 0 22 5A 0 10A 0 6 5A 0 2 5V Temperature Coefficient of output offset Maximum change in output readback per C after a 30 minute warm up 3672A 3673A 3674A 3675A Voltage 30ppm 0 5mV 30ppm 0 8mV 30ppm 1mV 30ppm 1 5mV ...

Page 66: ... 50msec 60msec 60msec Full load Down 50msec 50msec 60msec 60msec No load Up 50msec 50msec 60msec 60msec No load Down 200msec 300msec 300msec 500msec AC Input Ratings AC180V 265V 47Hz 63Hz 1050VA Max Operating Temperature 0 40 0 80 RH Cooling Fan Cooling Output Voltage Overshoot 1V Programming Language SCPI Standard Commands for Programmable Instruments Recommended Calibration Interval 1 year Net W...

Page 67: ...67 Dimensions Clear Dimension Dimension with cover ...

Page 68: ...e error queue the supply responds with 0 No error The error queue is cleared after a CLS clear status command has been executed The RST reset command does not clear the error queue All error records will be lost when the power is turned off Front Panel operation If the ERROR annunciator is on press the Error key repeatedly to read the errors stored in the queue in sequence The error queue is clear...

Page 69: ...expected for the command You omitted one or more parameters that are required for this command Example APPL 112 Program mnemonic too long A command header was received which contained more than the maximum 12 characters allowed 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 th...

Page 70: ...n the bus line is selected as the trigger source Make sure that the trigger source is selected to the bus and the trigger subsystem is initiated by INIT IMM command then triggered by TRG 222 Data out of range A numeric parameter value exceeds the valid range for the command Example TRIG DEL 3 223 Too much data A character string was received but could not be executed because the string length was ...

Page 71: ...nd which does not generate data and then attempted an ENTER statement to read data from the remote interface 430 Query DEADLOCKED A command was received which generates too much data to fit in the output buffer and the input buffer is also full Command execution continues but all data is lost 501 Isolator UART framing error 502 Isolator UART overrun error 511 RS 232 framing error 512 RS 232 overru...

Page 72: ...d more than 12 characters 740 Cal checksum failed secure state 741 Cal checksum failed string data 745 Cal checksum failed DAC cal constants 746 Cal checksum failed readback cal constants 747 Cal checksum failed GPIB address 748 Cal checksum failed internal data 750 Cal checksum failed store recall data in location 0 751 Cal checksum failed store recall data in location 1 752 Cal checksum failed s...

Page 73: ...73 757 Cal checksum failed store recall data in location 7 758 Cal checksum failed store recall data in location 8 759 Cal checksum failed store recall data in location 9 VER 20150323 ...

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