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4-8

KLP 073008

4.6

RESTORING PRIOR CALIBRATION VALUES

Calibration values for KLP are stored in three separate locations designated: Factory, Previous
and Working. Each time the unit is calibrated, the Working values are moved to Previous, and
the new calibration values are stored in Working. It is possible to replace the Working calibration
values with either the Previous or the Factory calibration values; contact Kepco Sales Engineer-
ing for details.

TABLE 4-1.FACTORY DEFAULT CALIBRATION PASSWORDS

MODEL

PASSWORD

KLP 20-120-1200

2012

KLP 36-60-1200

3660

KLP 75-33-1200

7533

KLP 150-16-1200

1516

KLP 300-8-1200

3008

KLP 600-4-1200

6004

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Summary of Contents for KLP SERIES

Page 1: ...contact your nearest Kepco Representative or the Kepco Docu mentation Office in New York 718 461 7000 requesting the correct revision for your particular model and serial number 3 The contents of this...

Page 2: ......

Page 3: ...USA Importer s Name and Address Type of Equipment Component Power Supply Model No PRODUCT MODEL NUMBER Year of Manufacture I the undersigned declare that the product specified above when used in conj...

Page 4: ...wire grounded mains connection See wiring section of this manual for complete electrical wiring instructions EN61010 1 2001 Cl 6 10 1 4 This power supply has secondary output circuits that are conside...

Page 5: ...rforming any servicing The PROTECTIVE EARTHING CONDUCTOR TERMINAL must properly con nected prior to application of source power to the product see instructions on instal lation herein in order to ensu...

Page 6: ......

Page 7: ...ols and Indicators 2 1 2 2 2 Rear Panel Connectors and Switch 2 1 2 3 Source Power Requirements 2 5 2 4 Cooling 2 5 2 5 Preliminary Operational Check 2 5 2 6 Installation 2 6 2 6 1 Rack Mounting 2 6 2...

Page 8: ...Storage of User programmed Active Settings 3 13 3 3 1 2 User determined output Sequences 3 13 3 3 1 3 External Triggering 3 14 3 3 1 4 Internal Relay Configuration 3 14 3 4 RS232 C Operation 3 14 3 4...

Page 9: ...urrent Calibration Local 4 3 4 3 3 External Calibration Local 4 3 4 3 4 Calibration Exit Local 4 4 4 4 Calibration using VISA Driver Demo Program Soft Panel 4 4 4 4 1 Voltage Calibration VISA Demo 4 5...

Page 10: ...ct DELay Command B 8 B 34 OUTPut STATe PROTect DELay Query B 8 B 35 SOURce CURRent LEVel IMMediate AMPlitude Command B 8 B 36 SOURce CURRent LEVel IMMediate AMPlitude Query B 8 B 37 SOURce CURRent LIM...

Page 11: ...OMMunication SERial ENAB Query B 17 B 74 SYSTem COMMunication SERial PACE Command B 17 B 75 SYSTem COMMunication SERial PACE Query B 18 B 76 SYSTem COMMunication SERial PROMpt Command B 18 B 77 SYSTem...

Page 12: ...age Structure 3 23 3 3 Tree Diagram of SCPI Commands Used with KLP Power Supply 3 25 3 4 Status Reporting Structure 3 27 3 5 Typical Example Of KLP Power Supply Program Using SCPI Commands 3 29 3 6 An...

Page 13: ...Error Codes 3 2 3 2 IEEE 488 GPIB Bus Interface Functions 3 18 3 3 IEEE 488 GPIB Bus Command Mode Messages 3 18 3 4 IEEE 488 GPIB Bus Data Mode Messages 3 19 3 5 Rules Governing Shortform Keywords 3 2...

Page 14: ...viii KLP073008 FIGURE 1 1 KLP SERIES POWER SUPPLY...

Page 15: ...d maximum voltage at rated current parameters define the virtual models avail able within the limit of 1200 Watts of output power see Figure 1 2 KLP power supplies operate from wide range 88 255V a c...

Page 16: ...A 36V 0 8A 0 60A 20V 60A 10 mV 125 mV 83 KLP 75 33 1200 0 75V 16A 75V 0 4A 0 33 3A 36V 33 3A 10 mV 125 mV 84 KLP 150 16 1200 0 150V 8A 150V 0 2A 0 16A 75V 16A 10 mV 125 mV 86 KLP 300 8 1200 0 300V 4A...

Page 17: ...justment range voltage 0 100 of rated voltage no minimum load required current 0 100 of rated current no minimum load required Source effect voltage 0 01 Emax over full source range current 0 01 Imax...

Page 18: ...safety covers 75 600V models Shocksafe Euroblock Analog programming port 15 pin D sub Digital programming port primary Standard GPIB connector IEEE 488 2 GPIB secondary 9 pin D sub RS 232 Direct outp...

Page 19: ...grammable functions PAR 2 7 10 Programming time 20 milliseconds 10 to 90 Eout PROGRAMMING CHARACTERISTICS DIGITAL Digital remote control isolation Safety Extra Low Voltage SELV referenced to chassis f...

Page 20: ...1 6 KLP 073008 FIGURE 1 3 KLP SERIES POWER SUPPLY MECHANICAL OUTLINE DRAWING SHEET 1 OF 2 R DWG MECH 3010266...

Page 21: ...KLP 073008 1 7 FIGURE 1 3 KLP SERIES POWER SUPPLY MECHANICAL OUTLINE DRAWING SHEET 2 OF 2...

Page 22: ...ectly via either the IEEE 488 2 GPIB or RS232 ports using SCPI commands Most features available in local mode can be accessed in remote mode through dig ital programming as well as some that are only...

Page 23: ...the KLP to produce a variety of sequential output operations Each memory location accommodates a value for voltage and current and a dwell time how long the parameter is to be in effect Values are st...

Page 24: ...wer supply in either series for higher voltage or parallel for redundancy or higher current the master slave feature allows a single power supply the master to automatically control both outputs to ac...

Page 25: ...1m long Connect KLP Power Supply to GPIB bus SNC 488 1 IEEE 488 GPIB Cable 2m long Connect KLP Power Supply to GPIB bus SNC 488 2 IEEE 488 GPIB Cable 4m long Connect KLP Power Supply to GPIB bus SNC...

Page 26: ......

Page 27: ...r Turns the power supply on or off Applies input power to power supply internal circuits Circuit breaker provides input overload protection 2 VOLTAGE control switch Multifunction rotary encoder with m...

Page 28: ...rd and perform calibra tion PAR 4 3 9 DC OUTPUT indicator Green LED lights when DC output is enabled LED is off when output is disabled 10 DC OUTPUT on off switch Enables or disables the DC Output Whe...

Page 29: ...r up sequence see PAR 3 2 6 3 If not selected OFF default condition the stored values will be 0 volts minimum amps The switch setting is detected upon unit power up ON Save and recall previous set poi...

Page 30: ...4 for relay energized condition 1 3 Vref Analog signal which programs output voltage from zero to full scale Voltage or resistance program ming is selected via DIP switch position 1 See Table 2 2 Ref...

Page 31: ...tallation is advisable to ascertain whether the power supply has suffered damage resulting from shipping Refer to Figures 2 1 and 2 2 for location of operating controls and electrical connections Tabl...

Page 32: ...t Verify DC OUTPUT indicator lights 8 Compare the programmed output voltage value step 5 with the voltage reading of the DVM the difference between the two should not exceed 0 05 of the maximum voltag...

Page 33: ...put Voltage The input power circuit breaker of the power supply is rated to support rated load power under worst case efficiency conditions at the lowest rated source voltage 100V a c and provides the...

Page 34: ...oint The exact location of the best d c ground point is entirely dependent upon the specific applica tion and its selection requires a combination of analysis good judgement and some amount of empiric...

Page 35: ...power leads it cannot completely compensate for the undesirable output effects of the power lead inductance These lead impedances both power and sensing leads are especially important if the load is...

Page 36: ...3 2 10 2 7 7 PARALLEL REDUNDANT OPERATION Identical KLP power supply models may be connected in parallel in order to provided increased output current to a common load see Figure 2 5 This permits the...

Page 37: ...KLP HV 073008 2 11 FIGURE 2 4 SERIES CONNECTION USING REMOTE SENSING FIGURE 2 5 PARALLEL CONNECTIONS USING REMOTE SENSING...

Page 38: ...o each other as possible with power termina tions bussed together using adequately sized interconnections the power supply load inter connections should be distributed evenly along the power supply ou...

Page 39: ...Y_NO pin 2 respectively be twisted together with RELAY_COM pin 4 as needed to eliminate noise pickup See PAR 3 2 11 3 to configure internal relay f External Trigger EXT_TRIG External Trigger may be us...

Page 40: ......

Page 41: ...s set points and limits Status and fault indications are provided by a 4 character alpha numeric display 3 2 1 TURNING THE POWER SUPPLY ON 1 To turn the power supply on set POWER ON OFF circuit breake...

Page 42: ...remote mode all front panel controls are disabled If desired local mode can be restored by pressing both VOLTAGE and CURRENT controls simultaneously the power supply will then remain in local mode un...

Page 43: ...s display will read aRwl Remote with Local Lockout Once the front panel is locked it can only be unlocked by either of the following turn the power supply off set ANALOG I O DIP switch position 5 to O...

Page 44: ...ual model settings are password protected see PAR 4 5 NOTE Decreasing full scale voltage and or current does not improve programming resolution A multitude of possible 1200W power supplies may be emul...

Page 45: ...utput power at 1200 Watts Maximum current shown on DC AMPERES display is automatically limited to 1200W maximum 5 Press DC OUTPUT switch to accept virtual model settings The unit displays done then re...

Page 46: ...etpoint mode both coarse rotate the control and fine rotate while pressing control in adjustment is available The coarse adjustment is approximately 100X the fine adjust ment resolution Setpoint adjus...

Page 47: ...ge and overcurrent protection setpoints while the PROTECT switch is held in 2 To change the values operate the corresponding adjustment control while holding the PRO TECT switch in When the PROTECT sw...

Page 48: ...repeatedly until the status display reads M S 3 Tap the DC OUTPUT switch once The status display reads either SERI series or PARA parallel The DC VOLTS display shows the number assigned to the unit 1...

Page 49: ...ycle as follows status display will flash E241 hardware error then DC VOLTS status display and DC AMPERES flash x OF y where x unit number and y total number of units the status display flashes the ty...

Page 50: ...rent A to D calibration voltages see PAR 3 2 11 5 LBT Loop Back Test used to isolate RS 232 communication problems see PAR 3 4 2 4 CAL Display last calibration date and or begin Calibration see PAR 3...

Page 51: ...C to constant voltage CV mode MAN Relay on off is controlled manually directly from the front panel see below LIST Relay on off is controlled remotely using LIST commands via GPIB or RS 232 interface...

Page 52: ...ot is ON or OFF 1 Press in and turn either VOLTAGE or CURRENT control until the desired quick boot state is displayed 2 Press DC OUTPUT switch to save The program then advances to the next item in the...

Page 53: ...te details regarding digital commands and queries refer to Appendix A IEEE 488 2 Commands Queries and Appendix B SCPI Commands Queries 3 3 1 1 STORAGE OF USER PROGRAMMED ACTIVE SETTINGS The KLP Power...

Page 54: ...is reset to the default minimum and an error message notes that the requested value is out of range 3 3 1 4 INTERNAL RELAY CONFIGURATION The internal relay contacts available at pins 6 7 and 8 of the...

Page 55: ...turns on the echo mode upon receipt of the character The character turns off the echo mode The message echo off or echo on will be displayed to confirm this 3 4 2 RS 232 IMPLEMENTATION The following p...

Page 56: ...efault method of ensuring data is transferred without errors Each byte char acter is echoed back to the sender where it is verified as the same character that was just sent If the character is incorre...

Page 57: ...it reads PASS the power sup ply is defective and requires repair 4 Install the loop back test connector 195 0112 see Table 1 4 at the RS 232 port located on the rear panel of the power supply J3 Figur...

Page 58: ...st condition Remote Local RL1 Complete capability Interface selects either local or remote information In local mode the KLP executes front panel commands but can be set to remote mode via IEEE 488 bu...

Page 59: ...is a programming language con forming to the protocols and standards established by IEEE 488 2 reference document ANSI IEEE Std 488 2 IEEE Standard Codes Formats Protocols and Common Commands SCPI co...

Page 60: ...bsystem commands used in the KLP Power Supply with the root at the left side and specific commands forming the branches The following paragraphs introduce the subsystems sub system commands are define...

Page 61: ...memory The equipment required for calibration is specified in PAR 4 2 Because the voltage measured will be used as reference for calibration the DVM itself must be calibrated accurately During voltag...

Page 62: ...ing an arbitrary short form such as ENABL for ENAB ENABLE or IMME for IMM IMMEDIATE will result in an error Regardless of which form chosen you must include all the letters required by that form To id...

Page 63: ...colon that precedes the first keyword of a program message This places the parser at the root top left Figure 3 3 of the command tree Note the difference between using the colon as a keyword separato...

Page 64: ...message The root level keyword SOURce is an optional keyword Starting at the root there are various branches or paths corresponding to the subsystems The root keywords for the KLP Power Supply are AB...

Page 65: ...T subsystem LIST CLE CONT CONT COUN SKIP SKIP COUN CURRent LEVel val LEVel POINt DIR DIR DWELl DWELl POINt QUERy QUERy VOLTage LEVel val LEVel POINt SOURce subsystem SOURce VOLTage LEVel IMMediate AMP...

Page 66: ...g form has the same effect as INST short form Commands queries may be given in upper lower case long form e g SoUrCe is allowed Text shown between brackets is optional e g SOUR VOLT LEV TRIG has the s...

Page 67: ...ge error is detected the event registers bit 0 is set The 1 in the event register causes bit 3 of the status byte to be asserted The Service Request register is ANDed with its enable register for all...

Page 68: ...lity due to some condition affecting the parameter associ ated with that bit 0 Overvoltage Error 1 indicates an overvoltage fault has been detected 1 Overcurrent Error 1 indicates an overcurrent fault...

Page 69: ...RELAY_COM pin 4 RELAY_NC pin 10 voltage and current readbacks VOLT_RBACK pin 6 and CURR_RBACK pin 7 external trigger EXT_TRG pin 14 and remote inhibit REM_INH pin 8 3 7 1 ENABLING DISABLING THE OUTPUT...

Page 70: ...ON Local controls locked 3 Configure Analog I O Port J1 Figure 2 2 by referring to Table 2 6 and Figure 3 6 grounding J1 pin 12 enables analog programming FIGURE 3 6 ANALOG PROGRAMMING OF OUTPUT VOLTA...

Page 71: ...controls locked 3 Configure Analog I O Port J1 Figure 2 2 by referring to Table 2 6 and Figure 3 7 grounding J1 pin 12 enables analog programming 4 Refer to PAR 3 7 4 to change overvoltage or overcur...

Page 72: ...AGE and CURRENT adjustment con trols at the same time If the panel is locked and RS 232 or GPIB access is not possible turn the power supply off set ANALOG I O DIP switch position 5 to OFF and then po...

Page 73: ...ode PAR 4 4 4 Calibration of the BOP is performed in one of two ways locally using the front panel controls PAR 4 3 or remotely using the graphical interface supplied with the instrument driver avail...

Page 74: ...UT switch to accept the number 8 If password is incorrect the status display reads ERR Repeat step 7 to enter the correct password or press the FUNCTION switch to exit calibration 9 If password is cor...

Page 75: ...4 Tap the DC OUTPUT switch to accept the value The status display reads CMAX Rotate the CURRENT control to increase or decrease the DVM reading until the DVM reading corre sponds as close as possible...

Page 76: ...bration date is displayed with the first digit blinking as a starting point to enter the current date Rotate either the VOLT AGE or CURRENT controls to change the digit then tap either control to move...

Page 77: ...ion PAR 4 4 2 for current calibration PAR 4 4 3 for external calibration or PAR 4 4 4 to exit calibration 4 4 1 VOLTAGE CALIBRATION VISA DEMO During voltage calibration the voltage voltage readback an...

Page 78: ...Port J2 pin 7 and DVM to pin 13 Click the button to increase and the to decrease the output current until the DVM reads as close as pos sible to 10V 6 Click the PRESS TO ACCEPT button to accept the v...

Page 79: ...mum rated voltage and current is set to the value corresponding to 1200 Watts If a current calibration is completed but no Voltage calibration the vir tual model current will be set for maximum rated...

Page 80: ...moved to Previous and the new calibration values are stored in Working It is possible to replace the Working calibration values with either the Previous or the Factory calibration values contact Kepco...

Page 81: ...e whole number 0 to 255 per Table A 2 Default Value 0 Description This command programs the standard Event Status Enable register bits The contents function as a mask to determine which events of the...

Page 82: ...see PAR B 28 Any 4xx type error sets the Query error bit 2 Related Commands CLS ESE OPC See example Figure A 1 A 6 IDN IDENTIFICATION QUERY IDN Syntax IDN Return value Character string Description Id...

Page 83: ...date of last calibration Axxxxxx indicates unit serial number and Vx xx indicates firmware revision OPC Directs status bit 0 to be set once pending operations are completed OUTP ON Enables output NOT...

Page 84: ...te on or off is also saved The following parameters are stored by SAV VOLT CURR OUTP and VOLT PROT CURR PROT The stored values can be restored by the RCL com mand NOTE If a Virtual Model setting see P...

Page 85: ...mmands SRE SRE See example Fig ure A 1 A 15 TRG TRIGGER COMMAND TRG Syntax TRG Description Triggers the power supply to be commanded to preprogrammed values of output current and voltage When the trig...

Page 86: ......

Page 87: ...OUR LIST COUN SKIP B 14 B 15 STAT QUES COND B 63 SOUR LIST CURR B 16 B 17 STAT QUES ENAB B 64 B 65 SOUR LIST CURR POIN B 18 SYST COMM GPIB ADDR B 66 B 67 SOUR LIST DIR B 19 B 20 SYST COMM SER BAUD B 6...

Page 88: ...le Figure B 1 B 4 CAL COMMANDS AND QUERIES CAL CAL commands and queries are used to perform calibration of the unit via the control interface These commands must be issued in a specific sequence in or...

Page 89: ...ng virtual model limits OUTP ON Enables output OUTP Returns 1 output enabled VOLT 75 CURR 1 5E 1 Programs output voltage to 75V current limit to 0 15A INIT CONT ON Enables continuous triggering INIT C...

Page 90: ...LIST COUNt SKIP nn nn int_value 0 to 255 Description Allows beginning steps of list generated waveform to be run once then ignored When a list is to be repeated using LIST COUNT this command allows t...

Page 91: ...OURce LIST DIRection QUERY LIST DIR Syntax Short Form LIST DIR Long Form LIST DIRection Return Value value UP or DOWN Description Identifies the for executing the list established by LIST DIR Related...

Page 92: ...Starting at location established by LIST QUER returns comma separated list of up to 16 values indicating the main channel parameters entered i e the contents of the main channel List Data Table Relat...

Page 93: ...LT POIN Returns 3 indicating that 3 data points have been entered also indi cates that the next data location to be filled is Location 3 LIST QUER Returns 0 indicating list starting point default loca...

Page 94: ...Returns the programmed delay before the energizing Active only if relay control is set to FLT mode and either option C V or V C is selected See PAR 3 2 11 3 for details B 35 SOURce CURRent LEVel IMMed...

Page 95: ...H Return Value exp_value digits with decimal point and Exponent e g 2 71E 1 for 27 1 Description Returns value representing Virtual Model current limit set by CURR LIM HIGH command Related Commands CU...

Page 96: ...Table 1 2 This value is determined at the factory and cannot be changed by the user CURR PROT MIN returns the minimum current protection value see Table 1 1 See example Figure B 4 Description Returns...

Page 97: ...following example assumes KLP 75 33 1200 with virtual model set for 36V 33 33A and output operating in current stabilization mode See Figure B 3 for directions on programming virtual model limits VOL...

Page 98: ...ly always 0 Related Commands VOLT See example Figure B 5 B 49 SOURce VOLTage LIMit HIGH COMMAND VOLT LIM HIGH Syntax Short Form SOUR VOLT LIM HIGH exp_value Long Form SOURce VOLTage LIMit HIGH exp_val...

Page 99: ...vervoltage range for the power supply model error message 222 Data out of range is posted in the output queue If the power supply output exceeds the voltage protection level programmed then the power...

Page 100: ...ing mode if load resistance is greater than 21 8 0 5 output will operate as voltage stabilizer MEAS VOLT Returns measured output voltage approximately 2 18E1 21 8V assuming voltage stabilizer operatio...

Page 101: ...ion Event register The Operation Event register is a read only register which holds latches all events that occur Reading the Operation Event register clears it See example Figure B 6 NOTE The power s...

Page 102: ...nable conditions of the power supply Bit set to 1 condition active true bit reset to 0 condition inactive false See example Figure B 6 B 64 STATus QUEStionable ENABle COMMAND STAT QUES ENAB Syntax Sho...

Page 103: ...l ECHO 1 0 Description Enables 1 ON or disables 0 OFF echo mode see PAR 3 4 2 3 When echo mode is ON causes all subsequent characters to be echoed back When echo mode is OFF turns off the character ec...

Page 104: ...rst in first out buffer that stores errors as they occur As it is read each error is removed from the queue and the next error message is made available When all errors have been read the query return...

Page 105: ...COMP causes the unit to respond to older formats such as LIST TIME for compatible operation with software written for KLP power supplies up to Revision 2 9 SYST LANG COMP has NOTE The following exampl...

Page 106: ...ort Form SYST PASS STAT Long Form SYSTem PASSword STATe Return Value int_value 0 or 1 Description Returns a 1 if the password state is enabled or a 0 if it is disabled B 89 SYSTem SECurity IMMediate C...

Page 107: ...NATION 0 No error None No error 100 Command error Command Error bit 5 Command and data understood but more information included which is not recognized 102 Syntax error Command Error bit 5 First 4 cha...

Page 108: ...310 System Failure Device Error bit 3 Program checksum incorrect 311 Memory Error Device Error bit 3 E g power up NV RAM error or CALibrate STORe error 313 Calibration Memory Lost Device Error bit 3...

Page 109: ...etpoint mode The output can be disabled at any time VOLTS and AMPS dis plays show actual output parameters as determined by the load see PAR 3 2 3 How do I establish the operating mode CV and CC indic...

Page 110: ...13 or 15 of analog port to adjust the setpoint values for output voltage and current proportionally A maximum combination of programmed voltage and current cannot exceed 1200 watts Programming input...

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