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KLR Series User Manual

1. PIN SIGNAL NAME FUNCTION 1 DIO1 I O Line 2 DI02 I O Line 3 DI03 I O Line 4 DI04 I O Line 5 EOI End or Identify 6 DAV Data Valid 7 NRFD Not Ready for Data 8 NDAC Not Data Accepted 9 IFC Interface Clear 10 SRQ Service Request 11 ATN Attention 12 SHIELD Shield 13 DI05 I O Line 14 DI06 I O Line 15 DI07 I O Line 16 DI08 I O Line 17 REN Remote Enable 18 GND Ground signal common 19 GND Ground signal common 20 GND Ground signal common 21 GND Ground signal common 22 GND Ground signal common 23 GND Ground signal common 24 LOGIC GND Logic Ground TABLE 2 4 RS 232 PORT CONNECTOR J3 PIN ASSIGNMENTS STANDARD MODELS ONLY PIN SIGNAL NAME FUNCTION NOTE A null modem cable see Table 1 5 is required for nearly all applications with the exception of those in which RXD and TXD line transposition is accomplished via external hardware e g older Apple MAC computers with D sub serial port 1 DCD Data Carrier Detect protocol not used 2 RXD Receive Data 3 TXD Transmit Data 4 DTR Data Terminal Ready protocol not used 5 SGND Signal Ground 6 DSR Data Set Ready protocol not used 7 RTS Request To Send protocol not used 8 CTS Clear To Send protocol not used 9 RI Ringer Indicator protocol not used KLR 010715 2 RELAY NO Connected to RELAY COM pin 4
2. ERROR CODE MEANING E310 System Error E313 Calibration Memory Error E315 Configuration Memory Error E341 Memory Error CRC E330 Self Test Error Ecal Calibration Error The unit will try to restore the previous calibration Previous Calibration Error After detecting a Calibration Error Ecal and trying to use Eclp the previous calibration an error was detected and the unit will attempt to restore the factory calibration Factory Calibration Error The unit has failed to restore the factory calibration after Eclf failing to restore the previous calibration The unit will not operate after this error has been displayed and must be referred for service NOTE During power up the power supply performs detailed software check sequences If a failure is detected dur ing power up the DC VOLTS and DC AMPERES displays are blanked and the Status display shows an error code For errors that occur after power up refer to the Developer s Guide for typical error codes and possible causes For these and all other error codes refer to authorized service personnel if corrective action is required 3 After a successful self test the default conditions upon power up are as follows Status display shows SET output is disabled green DC OUTPUT indicator is off If remote analog mode is selected PAR 3 4 output is enabled unless Remote Inhibit pin 8 of the Analog I O Connector see Figure 2 2 and Table 2 7
3. seen 1 2 1 4 Specificatiorts teorie ctis Gnd rts in infe A bud e dn Me E 1 2 1 5 FeatUreS sn E HM 1 9 1 5 1 Local Controls eae tte ee ani EE 1 9 1 5 2 Remote Controls out e bete B ke ec cet cee Pasce eet Ce teo ipe EE CI Rte Kenede K 1 9 1 5 2 1 Digital Programming up iet pr oir tetro pee iode BEN EE 1 9 1 5 2 2 Analog Prograrmlimlibig s cients con etu teer aka icr dekan rit etre ctr ere aee tv ate D d we rare 1 9 1 5 3 Digital Calibration css ica kasil Ae IIIA EU edet cbe En ient eL ei o dice ettet 1 9 1 5 4 Overvoltage Overcurrent Protection ee 1 10 1 5 5 User defined Voltage Current Limits limit Models esee 1 10 1 5 6 Storage of User Programmed Active Settings esssssssessseeneeeeneenee nennen 1 10 1 5 7 User Programmed Sequences ssnin adan d in banll EE 1 10 1 5 8 l ast Setting Recall cn ln ranin sire K las I BEEN 1 10 1 5 9 Built in Protection SL 1 10 1 5 10 Internal Flelay eoe vee ele a eel 2 S Ree re et ee eel 1 11 1 5 11 Master Slave Control standard models Only eese nene 1 11 1 6 Equipment Supplied merge a ede ES de et o EE DE eee 1 11 1 7 nee rl 1 11 1 8 SV 1 11 SECTION 2 INSTALLATION 2 1 Unpacking and Irispectiori i icc e tette v hi tdt t a day te t i reco fett teet 2 1 2 2 Terminations and Gohtro
4. 3 32 3 3 6 6 6 Setting Limit Model E Series Models Only 3 34 3 4 Remote Programming Using Analog Signals EEE kk kk kk kk AKA KA Kek AKA AKA KK KA AR 3 35 3 4 1 Programming with external resistance ii Eke kk rennen nnne nnne 3 36 3 4 2 Programming with external Voltage eee 3 37 3 4 3 Changing Overvoltage or Overcurrent Protection Values in Analog Programming Mode 3 38 SECTION 4 CALIBRATION 4 1 General elucet RE RE GEMEINDE 4 1 4 2 Equipment Requlred 2 6 edere atento SI me dp ERE mde 4 1 4 3 Calibration Using Front Panel Controls in Local Mode sessseeeeeneeneneee kk kk kk kek K k r A 4 2 4 3 1 Voltage Calibration Local 2 le terr ke tpe dti 4 3 4 3 2 Current Calibration Local Ek 4 3 4 3 3 External Calibration Irocaly s 2 ictor EE k n cet Hie tice EE 4 4 4 3 4 Calibration Exit Local terr I Re Veye a Zu Ue re AV VERD ee ii Ser 4 4 4 4 Calibration using VXI plug amp play Driver eene kk KAK KA nter enne 4 5 4 4 1 Voltage Calibration VXI plug amp play Driver Demo sseeeeenneeenenneenenn nennen 4 6 4 4 2 Current Calibration VXI plug amp play Demo seen nennen nennen nennen 4 8 4 4 3 Analog Reference Calibration VXI plug amp play Demo eseseeeeeeeeeenene nennen 4 9 4 4 4 Calibration Exit VXI plug a
5. Calibration of the KLR 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 VXI plug amp play instrument driver available at www kepcopower com drivers PAR 4 4 The VISA compliant VXI plug amp play driver works with many GPIB cards from suppliers such as National Instruments and Hewlett Packard These two ways cannot be combined NOTE Calibration of a master slave configuration requires that both units be restored to standalone operation see PAR 3 2 14 4 for instructions and calibrated individually EQUIPMENT REQUIRED The following equipment is required to calibrate the KLR Power Supply Digital Voltmeter DVM with 6 digits resolution and at least 0 002 accuracy for d c measurements NOTE Because the voltage measured will be used as a reference for calibration the DVM used must be accurately calibrated prior to calibrating the power supply Precision Shunt Resistor with a tolerance of 0 0196 power rating of at least 10 times larger than the maximum stress and a temperature coefficient equal to or better than 20 ppm per degree C NOTE Proper cooling of the external precision shunt resistor ensures the accuracy of the cal ibration Astable clean d c power source capable of supplying 10 0000V or other desired full scale analog voltage at 10mA minimum a linear power supply or reference voltage 1 C is recommended 4 1
6. 4 3 CALIBRATION USING FRONT PANEL CONTROLS IN LOCAL MODE For voltage calibration all loads must be disconnected and the sense terminals connected to the corresponding output terminals The digital voltmeter will be connected to the output of the power supply For current calibration after disconnecting all loads an appropriate shunt resistor will be connected across the output terminals and the digital voltmeter will be connected to the sense terminals of the shunt resistor 1 2 Turn off power supply and disconnect load from output terminals at the rear of the unit Verify that power supply is configured for local error sensing PAR 2 7 5 1 For voltage calibration connect DVM to M S and M S of terminal block at the rear of power supply For current calibration connect an appropriate shunt resistor see PAR 4 2 across the output terminals and connect DVM to shunt resistor terminals Configure the mating I O connector provided with unit to access the input programming sig nals Vref and Cref and output readback signals VOLT RBACK and CURR_RBACK as shown in Figure 4 1 Note that the wires to Vref and Cref should be tightly twisted with the corresponding GND wire and kept as short as possible Then connect the I O mating con nector to the Analog I O port of the power supply ref VOLT RBACK Fo On EW CURR_RBACK ja 4 2 FIGURE 4 1 ANALOG PORT WIRI
7. FACTORY DEFAULT SETTINGS GPIB FACTORY DEFAULTS The factory default GPIB address is 6 refer to PAR 3 2 12 to change the GPIB address KLR010715 3 3 1 2 3 3 1 3 KLR010715 RS 232 FACTORY DEFAULTS STANDARD MODELS ONLY The factory default RS 232 settings are as follows refer to PAR 3 2 13 to change the RS 232 baud rate standard models only Baud rate 38400 Parity None DataBits 8 StopBits 1 Echo OFF XON ON enabled NOTE Kepco strongly recommends the XON XOFF method for data transfer via RS 232 protocol for all Kepco products If this method is not selected it is the user s responsibility to ensure completion of any response by the power supply prior to issuance of subsequent commands LAN FACTORY DEFAULTS E SERIES MODELS ONLY The factory default LAN interface settings are listed below however actual unit settings may dif fer from those shown below depending upon whether the LAN is active or connected DHCP ON e AUTOIP ON PING ON can only be changed through web interface IP Address Undefined MASK Address 255 255 0 0 GATE Address 0 0 0 0 DNS Address 0 0 0 0 These default setting can be restored using the LAN Reset function front panel only or config ured as desired from either the front panel see PAR 3 2 15 or the web interface see PAR 3 3 6 4 If the LAN connection is active when the reset is sent the default values are as sh
8. AGE or CURRENT control to advance to next choice EXTERNAL CALIBRATION LOCAL During external calibration the external analog reference voltages used to establish full scale output current and voltage are calibrated ls 3 The status display reads INPv With the reference voltage adjusted to 10 000V tap the DC OUTPUT switch to accept the value The status display reads INPC With the reference voltage adjusted to 10 000V tap the DC OUTPUT switch to accept the value The status display reads EXIT Proceed to PAR 4 3 4 to exit calibration CALIBRATION EXIT LOCAL NOTE using a thin tool e g a paper clip tap the FUNCTION switch to exit calibration WITH 1 2 OUT saving any calibration data When the status display reads EXIT tap the DC OUTPUT switch to save the calibration The status display reads DATE The DC VOLTS display represents MMDD month day and the DC AMPS display represents YYYY year The factory calibration 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 to the next digit NOTE For purposes of traceability the user is strongly urged to enter the calibration date upon 3 4 completion of calibration If a date is not entered no date is saved Tap DC OUTPUT switch to accept date If any calibration voltage current or external was completed
9. IMENSIONS 1 32 0 EXCEPT AS NOTED TIC FEET BEFORE RACK INSTALLATIC CAUTION IF REINSTALLATION O REINSTALL FEET INC THER D 4 PLAS m m FIGURE 1 2 KLR SERIES POWER SUPPLY MECHANICAL OUTLINE DRAWING SHEET 2 OF 2 1 8 KLR 010715 1 5 1 5 1 1 5 2 1 5 2 1 1 5 2 2 1 5 3 KLR 010715 FEATURES LOCAL CONTROL Two front panel rotary encoders allow adjustment of voltage and current setpoints and limits Operating mode of the power supply is indicated by lighting either a green Constant Voltage or amber Constant Current LED The output can be enabled or disabled by the front panel DC OUTPUT switch an associated indicator lights when the output is enabled applied to the load Two 4 character LEDs normally display actual output voltage and current or programmed volt age and current limits in setpoint mode The voltage and current controls and their associated LED displays are also used with the FUNCTION and PROTECT switches and the 4 character status display for various other func tions described in PAR 3 2 A local lockout feature see PAR 3 2 2 1 prevents alteration of the power supply settings from the front panel when the power supply is operating in remote mode REMOTE CONTROL Remote control of the KLR Power Supply can be accomplished either through digital or analog programming DIGITAL PROGRAMMING Digital control for standar
10. 20V and 40V Kepco advises the use of bus bar conductors where possible for higher voltage models 75V 300V appropriately sized twisted conductor pairs terminated with wire ferrules are recommended contact Kepco Applications Engineering for details c For local error sensing the power outputs should be daisy chained to the power supply out put terminals serving as the regulation point and from there to a connection run to the load For remote sensing load connections may be run directly from each power supply s output terminals to the error sense regulation point or daisy chained as for remote sensing connec tions In each case the connections from the power supply outputs to the load must be prop erly sized for maximum current and configured to minimize inductance and noise either through twisted wires power coaxial cabling or parallel or laminated bus bars For guidance on wire sizing see the nomograph at www kepcopower com nomomax htm 2 13 2 7 8 2 7 9 d The output voltage setting of all power supplies must be adjusted to the same voltage as closely as possible and in any case within a 1 error band to ensure adequate range of the load sharing circuit In addition the output current setting should be identical for all power supplies and high enough to support all load requirements including both static and tran sient loading conditions MASTER SLAVE CONFIGURATIONS STANDARD MODELS ONLY Master slave configuratio
11. Connect programming cable between host computer and J3 see PAR 2 8 2 and Table 2 4 Digital programming using LAN E Series models only Connect LAN cable between host computer and J3 see PAR 2 8 3 and Table 2 5 4 Connect power supply to power source using one of the following See PAR 2 7 2 for additional information Use standard NEMA line cord set from Kepco see Table 1 5 or customized line cord using user wireable mating connector supplied in conjunction with user selected line cord or discrete wiring as applicable See PAR 2 7 2 1 for source power branch current rating and overload protection recommendations 5 Apply source power Set Power ON OFF circuit breaker switch on front panel to ON Apply firm continuous pressure to rocker actuator until fully engaged right side of rocker actuator locked parallel to front panel If actuator does not lock when released allow actuator to return to starting position then wait a few seconds before repeating turn on sequence DO NOT attempt to tease the switch contacts closed by repetitive press and release action The circuit breaker is trip free design if overload exists contacts cannot be held closed by actuator LOCAL OPERATING MODE INSTRUCTIONS How do I enable disable the output Press DC OUTPUT to toggle output on and off The output cannot be enabled while SET appears in the status display tap either knob to exit setpoint mode The output can be disabled at any time
12. EARTH GROUND TERMINAL This symbol is used to indicate a point which is connected to the PROTECTIVE EARTHING TERMINAL The component installer assembler must ensure that this point is connected to the PROTECTIVE EARTH ING TERMINAL CHASSIS TERMINAL This symbol indicates frame chassis connection which is supplied as a point of convenience for performance purposes see instructions on grounding herein This is not to be confused with the protective earthing point and may not be used in place of it p 3 Electric Shock Hazards This product outputs hazardous voltage and energy levels as a function of normal operation Operators must be trained in its use and exercise caution as well as common sense during use to prevent accidental shock This symbol appears adjacent to any external terminals at which hazardous voltage levels as high as 600V d c may exist in the course of normal or single fault condi tions This symbol appears adjacent to any external terminals at which hazardous voltage levels in excess of 600V d c may exist in the course of normal or single fault condi tions gt gt 228 1353 SAFETY SWITCH 010715 C D BLANK TABLE OF CONTENTS SECTION PAGE SECTION 1 INTRODUCTION 1 1 Scope OF Manual oS RE GE RE REE 1 1 1 2 General Descriptions a ERI at ated EE EE 1 1 1 3 OPTIONS ee ke dek a eel Kake mE RUD RR UU BRUN UE 1 2 1 3 1 Rapid Output Discharge Circuit RODC Option R Suffix
13. LAN Patch cable Connects KLR LAN port to LAN 10 ft long 118 1115 Support bracket rear Provides extra support to rear of rack mounted unit if needed Two 128 2306 TABLE 1 6 SAFETY SYMBOLS SYMBOL MEANING CAUTION RISK OF ELECTRIC SHOCK AN A CAUTION REFER TO REFERENCED PROCEDURE WARNING CAUTION INDICATES THE POSSIBILITY OF EQUIPMENT DAMAGE INDICATES THE POSSIBILITY OF BODILY INJURY OR DEATH KLR 010715 2 1 2 2 2 2 SECTION 2 INSTALLATION UNPACKING AND INSPECTION This instrument has been thoroughly inspected and tested prior to packing and is ready for operation After careful unpacking inspect for shipping damage before attempting to operate Perform the preliminary operational check as outlined in PAR 2 5 If any indication of damage is found file an immediate claim with the responsible transport service TERMINATIONS AND CONTROLS 1 FRONT PANEL CONTROLS AND INDICATORS Refer to Figure 2 1 and Table 2 1 LAN POWER ON OFF DC VOLTS CV indicator CC DC AMPERES DC OUTPUT Circuit Breaker display indicator E Series models only indicator display indicator ns E a ESS ama COE y A cn 1 est J l V FUNCTION Status PROTECT DC OUTPUT momentary switch display momentary switch on off switch VOLTAGE CURRENT 1224 control momentary switch co
14. Line Cord Set 250V 20A 2 5m long cord set provides for source power NEMA 6 20R 118 1235 connection Mates with NEMA 6 20R receptacle P i OG see adjacent figure Supports rated load power W over mains voltage range of 180 265V a c Line Cord Set 250V 15A 2 5m long cord set provides for source power NEMA 6 15R 118 1137 connection Mates with NEMA 6 15R receptacle A see adjacent figure Supports rated load power over mains voltage range of 180 265V a c Source power connector Mates with a c input connector J1 see Figure 1 2 for user wired 142 0381 source power connection Supports rated load power over mains volt age range of 180 265V a c IEEE 488 GPIB Cable 1m long Connect KLR Power Supply to GPIB bus SNC 488 1 IEEE 488 GPIB Cable 2m long Connect KLR Power Supply to GPIB bus SNC 488 2 IEEE 488 GPIB Cable 4m long Connect KLR Power Supply to GPIB bus SNC 488 4 Chassis Slide 2 required per Allows rack mounted units to slide in and out 108 0239 power supply Jonathan 375 QD Series Analog Connector Backshell Locks analog port mating connector to KLR via jackscrews 108 0204 Loop Back Test Connector Used for verification of RS 232 operation 195 0112 Null Modem Cable 10 ft Connect RS 232 port with controlling computer DB9F to DB9F 10 feet 118 1176 long Null Modem Cable 1 ft Used for Master Slave connections Connects RS 232 ports of stacked 118 1220 power supplies DB9F to DB9F one foot long
15. VOLTS and AMPS dis plays show actual output parameters as determined by the load see PAR 3 2 5 How do establish the operating mode Operating mode is determined automatically by the programmed voltage Vp and current Ip settings and the load If the load impedance is greater than Vp lp the unit operates in CV mode voltage stabilized to voltage set point If the load impedance is less than Vp lp the unit operates in CC mode current stabilized to current setpoint see PAR 3 2 10 Crossover between operating modes is seamless and automatic CV and CC indicators show present mode How do adjust output voltage or current real time Enable the output If in CV mode indicator lit rotate Voltage knob until VOLTS display shows desired output voltage See PAR 3 2 4 for coarse fine preference If in CC mode indicator lit rotate Current knob until AMPS display shows desired output current Rotating knob controlling limit parameter Voltage in CC mode Current in CV mode changes limit setting however change is invisible since actual outputs are displayed on VOLTS and AMPS displays see PAR 3 2 10 1 How can I see what the voltage and current setpoints are Tap press and release either Voltage or Current knob once to enter setpoint mode status reads SET VOLTS and AMPS displays show the setpoints Tap either knob once to exit setpoint mode SET disappears see PAR 3 2 10 2 How do I change voltage and current setpoints ent
16. is grounded DC VOLTS and DC AMPERES displays show programmed output conditions either 0 Volts minimum Amperes see NOTE PAR 3 2 1 or if DIP switch position 3 enabled see Table 2 2 previously saved setpoint values in effect upon power off KLR010715 3 2 2 3 2 2 1 KLR010715 NOTE A minimum programmed current is required to ensure proper operation of the power supply under all load conditions Programmed current is automatically set to be at least the minimum current actual value depends on model see Table 1 2 Since the output is off Constant Voltage CV mode indicator green LED and Con stant Current CC indicator amber LED are off SETTING LOCAL REMOTE MODE LOCAL MODE When the power supply is turned on it is automatically set to Local mode as long as Analog I O port pin 12 is not grounded In local mode the Status display is normally blank DIGITAL REMOTE MODE The power supply will automatically go into digital remote mode when digital remote commands are accepted via the GPIB RS 232 or LAN ports In digital remote mode the power supply normally shows dRem in the status display The LAN indicator E Series models only is on when a valid IP address has been found When in digital 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 until another digital
17. play is blinking Rotate either VOLTAGE or CURRENT control until DC VOLTS display reads desired setting then tap DC OUTPUT switch to accept Tap FUNCTION switch to exit or rotate VOLTAGE or CURRENT control until status display reads RTN then tap DC OUTPUT switch to return to next highest menu 3 2 17 3 2 FAULT RECOVERY MODE KLR010715 The KLR allows the user to control how the unit recovers from faults and allows different responses for different faults This function is password protected see PAR 3 2 8 The three recovery options are PROT SAFE and AUTO see Table 3 2 PROTected When a fault configured as PROT is detected the output is disabled Recovery requires that the user turn the unit off and wait five seconds before turning the unit on After initializing the output is disabled and the unit is in Setpoint mode pro grammed to minimum values for voltage and current This is the safest recovery option forcing the operator to reboot the power supply before programming and re enabling the output hopefully after eliminating the cause of the fault PROT is the factory default set ting for all fault recoveries NOTE if the source power failure PWR recovery mode is selected as AUTO refer to WARNING on page 3 20 listed under AUTO description 3 19 AN SAFE When a fault configured as SAFE is detected the output is disabled and the unit is returned to Setpoint mode programmed to last settings retrieved from
18. see PAR 3 2 17 steps 1 through 3 and rotate either VOLTAGE or CUR RENT control until status display reads RELY The DC VOLTS display indicates whether the relay is currently ON energized or OFF deenergized Tap DC OUTPUT switch to enter Relay Control menu Rotate either VOLTAGE or CURRENT control to see the available relay control modes in the status display The modes are FLT factory default Relay is set to energize automatically upon detection of one of three preselected conditions tap DC OUTPUT to access FLT submenu NORM factory default relay energizes immediately upon detection of a system error V gt C relay energizes immediately upon detection of a system error and after a user programmable delay the relay energizes upon a transition from constant voltage CV to constant current CC mode C gt V relay energizes immediately upon detection of a system error and after a user programmable delay the relay energizes upon a transition from constant current CC to constant voltage CV mode RTN Return to FLT menu MAN Relay on off is controlled manually directly from the front panel see below Relay state is not retained relay will be off when unit is turned on LIST Relay on off is controlled remotely using LIST commands via GPIB or RS 232 interface see KLR Developer s Guide RTN Return to RELY menu KLR010715 3 17 2 To select mode rotate either VOLTAGE or CURRENT control until status display re
19. status display reads aRem 3 38 KLR010715 4 1 4 2 KLR 010715 SECTION 4 CALIBRATION GENERAL This section contains the calibration instructions for the Power Supply It is recommended that the user be familiar with Local Mode operation PAR 3 2 before calibrating the unit A full calibration consist of a voltage calibration and a current calibration Both voltage and cur rent calibrations consist of a zero and a full scale calibration External calibration calibrates the precise user defined reference voltages used that will be equivalent to full scale output when external analog programming is used NOTE Calibrating the unit resets all internal memory locations used for saving active settings SAV RCL programmed sequences using the LIST commands and trigger levels established by CURR TRIG and VOLT TRIG These parameters are returned to the default minimum 0V minimum A In addition values for full scale voltage and current in INVC registers ANPR and ANRB default values are set to 10V In order to enter the calibration mode the correct unit password must be entered If the pass word has been forgotten call the factory and a special password which has been assigned to your power supply will be provided During the calibration new calibration data is computed which is then stored in the nonvolatile memory either when EXIT is executed local mode PAR 4 3 4 or SAVE Calibration is executed remote mode PAR 4 4 4
20. 12 BAUD standard models only set RS 232 baud rate PAR 3 2 13 LAN E Series models only configure LAN parameters see PAR 3 2 15 M S standard models only Mas ter Slave PAR 3 2 14 UTIL utility PAR 3 2 17 or EXIT To select a function tap DC OUTPUT KEPCO INC 131 38 SANFORD AVENUE FLUSHING NY 11355 U S A amp TEL 718 461 7000 FAX 718 767 1102 http www kepcopower com email hq kepcopower com 2012 KEPCO INC 1 7 15 Data subject to change without notice How do I view change the limit model settings See PAR 3 2 9 for description of limit model If status shows SET exit setpoint mode tap either knob once Use thin tool to press FUNCTION once status reads VIRT VOLTS and AMPS displays show the maxi mum voltage and current of the present limit model f no change exit function mode see above To change press DC OUTPUT once Status reads LMT VOLTS and AMPS displays blink To change setting rotate Voltage and Current knobs until VOLTS and AMPS displays show desired limit model settings Press and hold knob in while turning for fine adjustment Press DC OUTPUT to accept limit model settings Unit displays DONE then resets and repeats power on sequence How do view change overvoltage and overcurrent protection limits See PAR 3 2 11 for description of protection limits f sta tus reads SET tap either knob to exit setpoint mode To view protection limits use a thin tool to press and hold PROTECT unti
21. 3 axes non operating Altitude Sea level to 10000 ft 0 3 000 ft 10096 linear derating to 70 of power at 10 000ft Loss of source power protection Shutdown Overtemperature protection Shutdown Fan failure protection Shutdown Selectable Recovery Mode see PAR 3 2 17 3 2 1 E Series models are not Master Slave capable 1 4 KLR 010715 TABLE 1 3 KLR SPECIFICATIONS Continued SPECIFICATION RATING DESCRIPTION CONDITION COMMENT PHYSICAL CHARACTERISTICS Dimensions English 1 735 H x 19 W x 17 5 D Depth excluding connectors and termi metric 44 45 x 482 6 x 443 7 mm nal Blocks eee gute T8 Weight English 15 Ibs metric 6 82kg Dielectric strength Input Chassis 2121V d c Output Chassis 2121V d c 1250V d c 20V and 40V models Input Output 4242V d c 2500V d c 20V and 40V models Source power connector IEC 320 C19 appliance inlet Load connections 20V and 40V models Nickel plated copper busbar with inte gral threaded stud 1 4 20 1 2in 75 300V models Shock safe Euroblock single conduc tor size 20 10AWG 0 5 5 0 mm Provision for safety covers Analog programming port 15 pin D sub Digital programming ports primary Standard GPIB connector IEEE 488 2 GPIB secondary 9 pin D sub RS 232 standard Models only secondary RJ 45 LAN E Series Models Only Feedback Control Input 5 position low profile E
22. Checking Voltage Current Setpoints sesessessessseeeseeseeee eene nnne krn KRA nennen nennen 3 7 3 2 8 Password Protected Functions ld WE Bu Wa kel Ae EE diya v eel l bu wada wa VV nnne tenen 3 7 3 2 9 Definirig a LIME Model EE 3 7 3 2 10 Setting voltage Or CUM ENE ea msn kulane ote edet t eere level k a ve k bek s DX DE HD EE REPE E uud 3 8 3 2 10 1 Real time Voltage Current Adjustment nennen nnnm KAK KAK AA A KA RA RA 3 8 3 2 10 2 Setpoint Adjustment si nan ieee ctr eerie ae ede ser NAN ede ma erda RE 3 9 3 2 10 3 East Setting Recall 2 id eerte sk ba RM DO PALEIS 3 9 3 2 11 Viewing Changing Overvoltage or Overcurrent Protection Values 3 9 3 2 12 Changing GPIB Address e eee aa EE dedo e n wa VL bar n 3 10 3 2 13 Changing RS 232 Baud Rate Standard Models Only sesssseeeeeenenens 3 10 3 2 14 Setting up Master Slave Configurations Standard Models Only 3 11 3 2 14 1 Configure power supply as Slave Standard Models Only 3 11 3 2 14 2 Configure power supply as Master Standard Models Only see 3 12 3 2 14 3 Operating the Master Slave Configuration Standard Models Only sese 3 13 3 2 14 4 Restoring the Master Slave Configuration
23. Figure 4 3 appears Minimum voltage is first the status display on both the UUT and the VXI main panel reads V 0 Monitor DVM and click the button to increase and the to decrease the output voltage until the DVM reads as close as possible to minimum rated POSITIVE voltage or zero 4 6 KLR 010715 Must enter password to access Calibration PASSWORD Full Scale Calibration gl Connect DVM to Sense Terminals zz Zero Calibration CURRENT B Connect DVM to Calibration Shunt ES External Calibration ANALOG REF m See Manual for Proper Setup TOR OFF Use to Adjust Voltage to Zero 1 ak SAVE EALIBRATIGN Instruction FIGURE 4 3 VOLTAGE CALIBRATION WINDOW 2 Click the Press to ACCEPT button to accept the value The status display then reads VMAX Monitor DVM and click the button to increase and the to decrease the output voltage until the DVM reads as close as possible to maximum rated voltage 3 Click the Press to ACCEPT button to accept the value The status display will not change At the calibration window click the CURRENT Button to proceed to current calibration see PAR 4 4 2 4 Click the Press to ACCEPT button to accept the value the status display now reads OUTV At the ANALOG IO PORT J2 connect the DVM to VOLT RBACK and GND as shown in Figure 4 1 Click the button to increase and the button to decrease the output voltage until the DVM
24. OUTPUT switch to accept the setting shown in the DC VOLTS display To continue rotate either VOLTAGE or CURRENT control to select another fault To exit either select RTN and tap the DC OUTPUT switch to go to the next highest menu or tap the FUNCTION switch to exit function mode ANALOG OUTPUT FULL SCALE CALIBRATION Enter UTIL menu see PAR 3 2 17 steps 1 through 3 and rotate either VOLTAGE or CUR RENT control until status display reads ANRB 1 The DC VOLTS display shows the full scale analog readback voltage value produced by the full scale output voltage as established by the limit model The DC AMPS display shows the full scale analog readback voltage value produced by the full scale output current as established by the limit model To change the settings tap the DC OUTPUT switch Note that DC VOLTS and DC AMPERES displays begin blinking 2 Rotate VOLTAGE control to set the analog readback voltage value desired for full scale out put voltage 3 Rotate the CURRENT control to set the analog readback voltage value desired for full scale output current 3 21 3 2 17 5 3 2 17 6 3 3 3 3 1 3 3 1 1 3 22 4 Tap the DC OUTPUT switch to accept the new settings blinking stops or use a thin tool e g a paper clip to press the FUNCTION switch to cancel the operation 5 To exit rotate either VOLTAGE or CURRENT control until the status display reads RTN then tap the DC OUTPUT switch To exit the
25. SLAVE CONTROL STANDARD MODELS ONLY For applications that require the use of multiple standard KLR power supplies 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 achieve the desired output Refer to PAR 2 7 8 and 3 2 14 for details 1 6 EQUIPMENT SUPPLIED Equipment supplied with the unit is listed in Table 1 4 TABLE 1 4 EQUIPMENT SUPPLIED ITEM PART NUMBER QUANTITY Jumper 28 AWG or larger bus wire for local sensing connections 172 0638 2 Analog I O port mating connector 142 0528 1 Nut with captive lockwasher on output studs of 20V and 40V models only 102 0175 2 Quick Start Guide 228 1689 1 1 7 ACCESSORIES Accessories for the KLR Power Supply are listed in Table 1 5 1 8 SAFETY KLR 010715 There are no operator serviceable parts inside the case Service must be referred to authorized personnel Using the power supply in a manner not specified by Kepco Inc may impair the pro tection provided by the power supply Observe all safety precautions noted throughout this man ual Table 1 6 lists symbols used on the power supply or in this manual where applicable TABLE 1 5 ACCESSORIES brackets required per unit Each bracket requires 2 screws and 2 washers See Figure 1 2 sheet 1of 2 Detail C for requirements KEPCO ITEM FUNCTION PART NUMBER
26. UTIL menu rotate either VOLTAGE or CURRENT control until the status display reads EXIT then tap the DC OUTPUT switch ANALOG INPUT FULL SCALE CALIBRATION Enter UTIL menu see PAR 3 2 17 steps 1 through 3 and rotate either VOLTAGE or CUR RENT control until status display reads ANPR The DC VOLTS display shows the analog input voltage value that produces the full scale output voltage established by the limit model The DC AMPS display shows the analog input voltage value that produces the full scale output current established by the limit model 1 To change the settings tap the DC OUTPUT switch Note that DC VOLTS and DC AMPERES displays begin blinking 2 Rotate VOLTAGE control to set the analog voltage value required to produce the full scale output voltage 3 Rotate the CURRENT control to set the analog voltage value required to produce the full scale output current 4 Tap the DC OUTPUT switch to accept the new settings blinking stops or use a thin tool e g a paper clip to press the FUNCTION switch to cancel the operation 5 To exit rotate either VOLTAGE or CURRENT control until the status display reads RTN then tap the DC OUTPUT switch To exit the UTIL menu rotate either VOLTAGE or CURRENT control until the status display reads EXIT then tap the DC OUTPUT switch CALIBRATION Refer to PAR 4 3 REMOTE MODE PROGRAMMING USING DIGITAL INTERFACES For digital remote programming refer to the KLR Developer s Guide
27. VOLTAGE or CURRENT control to until the status display reads RCOV The DC VOLTS and DC AMPERES displays show a series of bars that give a snapshot pic ture of the recovery configuration as defined in Figure 3 2 The location of the bar top mid dle or bottom corresponds to the risk level high for AUTO middle for SAFE and low for PROTECT The character positions are assigned to the configurable faults as shown TEMP OLF OCP OVP XE THE FOLLOWING SETTINGS ARE SHOWN OLF SET TO PROTECT OCP SET TO PROTECT OVP SET TO SAFE adi PWR SET TO AUTO TEMP SET TO AUTO SAFE i PROTECT JL TS C AMPERES FIGURE 3 2 FAULT RECOVERY CONFIGURATION DISPLAY To change a fault recovery setting tap the DC OUTPUT switch to enter the Recovery menu The status display shows PASS Enter the unit password see PAR 3 2 8 and tap DC OUT PUT switch to accept the number When the password is accepted status display reads OVP and the DC VOLTS display shows the present fault recovery status PROT or SAFE for OVP Rotate either VOLTAGE or CURRENT control to cycle through OVP OCP OLF TEMP and PWR settings To exit tap the DC OUTPUT switch while the status display shows RTN To change a setting tap the DC OUTPUT switch while the status display shows the fault The setting in the DC VOLTS display begins to blink Rotate either VOLTAGE or CURRENT control to cycle through the allowable settings Tap the DC
28. also set to OFF KLR010715 KLR010715 AUTO AUTO IP status is displayed in the DC VOLTS display ON The KLR obtains an IP address automatically Both DHCP and AUTO IP set to ON OFF The KLR uses the IP MASK GATE and DNS addresses established by the user using either the UTIL LAN menus at the front panel or via SCPI com mands AUTOIP set to OFF MAC1 Shows first pair of hex digits of the MAC address e g for MAC address 01 23 45 67 89 AB the DC VOLTS display shows 01 and the DC AMPERES display shows 23 Cannot be changed by the user MAC2 Shows second of two hex digits of the MAC address e g for MAC address 01 23 45 67 89 AB the DC VOLTS display shows 45 and the DC AMPERES display shows 67 Cannot be changed by the user MAC3 Shows third pair of hex digits of the MAC address e g for MAC address 01 23 45 67 89 AB the DC VOLTS display shows 89 and the DC AMPERES display shows AB Cannot be changed by the user IP1 Shows first half of IP address e g for IP address 192 168 000 200 the DC VOLTS display shows 192 and the DC AMPERES display shows 168 To change the address press DC OUTPUT switch then rotate VOLTAGE control to change 192 _ or CURRENT control to change 168 then press DC OUTPUT switch to save IP2 Shows second half of IP address e g for IP address 192 168 000 200 the DC VOLTS display shows 000 and the DC AMPERES display shows 200 To change the address pres
29. be set independently to produce lower full scale outputs see PAR 3 2 17 4 Analog programming inputs are updated once every 0 5 seconds 2 Hz The default full scale programming and readback levels for both voltage and current are 10V Since Vref and Cref are converted to digital form then processed by the digital processing circuitry of KLR the same as any other programming input optimum 12 bit resolution is achieved when 10V programming input is equivalent to full scale It is important to note that the full scale programming input levels of Vref and Cref correspond to the active limit model setting of the power supply Thus if KLR 75 32 is programmed as a limit model 50V and 20A applying the full scale pro gramming input to Vref and Cref will program the output for 50V and 20A respectively One ben efit of this feature is the preservation of full 12 bit programming resolution for limit model settings that are less than the model maximum ratings Vmax and Imax as long as 10V analog input is equivalent to full scale While the full scale voltage and readback levels can be reduced by the user to accommodate system requirements decreasing the full scale values will result in degraded programming resolution 3 35 Refer to PAR 3 2 6 for enabling disabling the output using Remote Inhibit Refer to PAR 3 2 2 for instructions on exiting Analog Remote mode The remaining functions present at the Analog I O Port connector including the fau
30. chas sis slides see Table 1 5 Load connections are made at the rear panel Sensing monitor and current share terminals are also available at the rear panel Outline dimensions are provided in Figure 1 2 1 1 1 3 1 3 1 1 4 1 2 OPTIONS Options are identified by a letter suffix Unless otherwise noted options apply equally to stan dard and E Series models and specifications are not affected RAPID OUTPUT DISCHARGE CIRCUIT RODC OPTION R SUFFIX The Rapid Output Discharge Circuit RODC option suffix R is available on all KLR models This circuit rapidly discharges the output capacitance thus significantly reducing response time to reductions in output voltage The circuit consists of a voltage detector that compares the programmed and actual values of output voltage The discharge circuit is activated only when the actual voltage exceeds the pro grammed value Without the RODC circuit discharge of the total output capacitance internal and external is achieved through a combination of the external load resistance and an internal current sink For high load resistance or open circuit conditions at the output response time fall time can vary from milliseconds to seconds depending upon the magnitude of the high to low voltage transi tion With the RODC option output fall time is reduced to approximately the same value as rise time even with external capacitance equal to 5096 of the nominal internal output capa
31. command is received causing the unit to return to remote digital mode To disable local mode entirely see PAR 3 2 2 1 for front panel lockout For E Series models the OPERATE INSTRUMENT web page must not be active when restoring local mode Changes to the unit configuration made while in local made will not appear on the OPERATE INSTRUMENT web page until remote digital control is restored either refresh the open browser page or close the browser and start a new session dREM reappears in the status display NOTE During both LOCAL and DIGITAL REMOTE operation the analog readback signals voltage and current remain available as does the remote inhibit signal only program ming signals are disregarded ANALOG REMOTE With power supply turned off ground Analog I O port pin 12 Refer to PAR 2 7 9 to configure the Analog I O Port refer to Table 2 2 to configure the Analog I O switch When the power supply is turned on the status display shows aRem Analog Remote program ming selected The unit will accept Analog Remote commands see PAR 3 4 and front panel controls are disabled Local mode can be restored by pressing the VOLTAGE and CURRENT controls at the same time Once local mode has been restored analog remote programming is disabled until the unit is powered off then on again NOTE While Analog Remote programming is active the unit will respond to digital queries but will not respond to most digital commands except for the fron
32. compatible the KLR E Series Models identified by the E suffix are GPIB and LAN ethernet compatible The only difference between standard and E Series models is that LAN replaces the RS 232 interface on E Series models All models allow remote analog programming as well as local control For each model a multitude of limit models can be configured Limit models allow the unit to be configured to maximum settings below the rated voltage and or rated current When a limit model is established the unit will not accept programming values above the user defined limits KLR power supplies operate from wide range 180 265V a c 45 66 Hz input source power Since there are no internal adjustments KLR Power Supplies offer excellent output voltage cur rent stability and easy calibration Output voltage and current are displayed on independent LED displays Control of the KLR can be either local via the front panel controls and displays or remote using 1 either analog sig nals applied to the Analog I O Port or 2 digital programming Digital programming of standard models is via either IEEE 488 2 GPIB bus or RS 232 communication bus The E Series mod els offer digital programming via either IEEE 488 2 GPIB bus or using direct or web page con trol via the LAN port Digital control is done with 12 bits of resolution over the entire voltage current range The full rack cross section permits mounting in a standard 19 inch wide rack for optional
33. d c 20V 40V models 2121V d c 75V 150V 300V models Input Output 2500V d c 20V 40V models 4242V d c 75V 150V 300V models Leakage Current 230 Va c 50 60Hz 2 3mA max Electromagnetic Emissions CISPR11 Class A Class B Conducted compatibility Immunity EN 61326 1 Table 2 Industrial Environment OUTPUT CHARACTERISTICS Type of stabilizer CV CC Voltage Current Adjustment range voltage 0 100 of rated voltage No minimum load required current minimum to 10096 of rated current No minimum load required See Table 1 2 for minimum programmable current Source effect voltage 0 01 Emax Over full source range current 0 01 Imax Load effect voltage 0 02 Emax Over full load range current 0 05 Imax KLR 010715 1 3 TABLE 1 3 KLR SPECIFICATIONS Continued SPECIFICATION RATING DESCRIPTION CONDITION COMMENT OUTPUT CHARACTERISTICS CONTINUED Temperature effect voltage 0 01 deg C 0 50 deg C current 0 01 deg C Time effect drift voltage 0 02 24hr After 30 min warmup current 0 02 24hr Error sensing 0 25 volts per wire Above rated output Contact factory for larger margins Isolation voltage 600 Vd c or peak Either output terminal to ground 100V for 20V and 40V models Transient recovery excursion 1 of Emax 50 load step 2A microsecond max for load change recovery 2 msec 10 min load return to 0 1 of setting Turnon turnoff over
34. limits beyond its maximum ratings of voltage and current 5 Press DC OUTPUT switch to accept limit model settings The unit displays done NOTE Accepting a new limit model resets the setpoints to zero Volts and minimum Amperes resets the OVP and OCP values and if DIP switch position 3 is enabled clears stored setpoints of voltage and current as described above SETTING VOLTAGE OR CURRENT The VOLTAGE and CURRENT controls adjust output voltage and current limit respectively when the unit is in constant voltage CV mode and adjust voltage limit and output current respectively when the unit is in constant current CC mode The mode CV or CC is deter mined by the load together with the programmed settings As long as the voltage across the load produces a current that is less than the programmed Current setpoint the unit operates in CV mode voltage programmed to voltage setpoint current limited by current setpoint If the load changes to the point that current through the load reaches the current setpoint the unit automatically enters CC mode current programmed to current setpoint voltage limited by volt age setpoint Output voltage or current can be set at the front panel in two ways Real time adjustment PAR 3 2 10 1 or Setpoint adjustment PAR 3 2 10 2 REAL TIME VOLTAGE CURRENT ADJUSTMENT Rotating the associated control will change the output voltage or current in real time only if the output is enabled If the unit
35. once then rotate either the CURRENT or VOLTAGE control until the display reads M S 3 Tap the DC OUTPUT switch The status display reads either SERI series or PARA parallel The DC VOLTS display shows the number assigned to the unit 1 master 2 or above slave The DC AMPERES display shows the maximum number of units in the configuration e The factory default is standalone operation DC VOLTS and DC AMPERES show 1 4 To change the configuration tap the DC OUTPUT switch once The DC VOLTS and DC AMPERES start blinking Specify either SERI series configuration for higher voltage or PARA parallel configura tion for higher current using either the VOLTAGE or CURRENT control by holding in and rotating the control Both connected units must be set the same either SERI or PARA Specify the total number of units in the configuration to 2 by rotating the CURRENT con trol Specify the unit number to be assigned 2 slave by rotating the VOLTAGE control 3 11 3 2 14 2 5 Press DC OUTPUT to accept the displayed settings The unit briefly flashes wait then restarts with the new settings press FUNCTION to abort without changing the settings NOTE Until both units are configured properly the displays will cycle 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 fla
36. panel status display shows calibration and the voltage and current meters are not visible 8 Use the computer keyboard to enter the password in the text box displaying the word PASS WORD then press the ENTER key 9 If password is correct the status display on the VXI main panel reads CAL and the buttons on Calibration Screen Figure 4 1 are enabled highlighted If the password is incorrect the 4 5 password text box displays WRONG Repeat step 7 to enter the correct password or click the Calibrate Close button on the VXI main panel to exit calibration Must enter password to access Calibration PASSWORD Full Scale Calibration VOLTAGE Connect DVM to Sense Terminals Zero Calibration CURRENT Connect DVM to Calibration Shunt External Calibration ANALOG REF See Manual for Proper Setup OUTPUT Instruction ____ a ej SAVE CALIBRATION FIGURE 4 2 CALIBRATION WINDOW NOTE Calibrations may be done in any order 10 Proceed to PAR 4 4 1 for voltage calibration 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 VXI plug amp play DRIVER DEMO During voltage calibration the voltage voltage readback and remote analog voltage readback are calibrated 1 Click the VOLTAGE button on the Calibration window to start voltage calibration the Voltage Calibration Window
37. power wiring are met Kepco also makes a variety of prefabricated safety line cord sets available for connecting KLR to source power via conven tional box mounted receptacles Table 1 5 lists three popular cord set variants for North Ameri can applications For other options please contact Kepco Sales Engineering with specific requirements KLR 010715 WARNING Z N IT IS IMPERATIVE THAT THE USER PROVIDE ALL THREE SOURCE 2 7 3 KLR 010715 WIRE CONNECTIONS AS THIS CONNECTION IS THE SAFETY GROUND PROVISION D C OUTPUT GROUNDING Connections between the power supply and the load and sensing connections may despite pre cautions such as shielding twisting of wire pairs etc be influenced by radiated noise or pick up To minimize the effects of this radiated noise the user should consider grounding one side of the power supply load circuit The success of d c grounding requires careful analysis of each specific application however and this recommendation can only serve as a general guideline One of the most important considerations in establishing a successful grounding scheme is to avoid GROUND LOOPS Ground loops are created when two or more points are grounded at different physical locations along the output circuit Due to the interconnection impedance between the separated grounding points a difference voltage and resultant current flow is superimposed on the load The effect of this ground loop can be anything from an undes
38. reads BAUD the active baud rate 1000 x the value visible in the DC AMPERES display e g 38400 is displayed as 38 4 To change the baud rate proceed to step 3 3 Tap the DC OUTPUT switch The baud rate visible in the DC AMPERES display begins blinking 4 Rotate the CURRENT control to change the baud rate then tap the DC OUTPUT switch to accept the displayed baud rate The display briefly reads DONE then returns to BAUD 5 Rotate the VOLTAGE control until display reads EXIT then tap the DC OUTPUT switch to exit SETTING UP MASTER SLAVE CONFIGURATIONS STANDARD MODELS ONLY Both units of a master slave pair must be identical models After connecting the RS 232 ports see PAR 2 7 8 proceed as follows to configure the individual units First configure the slave see PAR 3 2 14 1 then the master see PAR 3 2 14 2 Ensure adequate source power is available to support the requirements of both power supplies Output wiring must be in accor dance with PAR 2 7 6 for series output connection or PAR 2 7 7 for parallel output connection as applicable parallel pairs must include load sharing connection per PAR 2 7 7 1 CONFIGURE POWER SUPPLY AS SLAVE STANDARD MODELS ONLY 1 Turn power on If the unit comes up in setpoint mode see PAR 3 2 7 tap either the CUR RENT or VOLTAGE control to take the unit out of setpoint mode status display goes from SET to blank 2 Using a thin tool e g a paper clip press the FUNCTION switch
39. setup and cannot be adjusted by user LIST VOLT MODE TRANS and CURR MODE TRANS commands are not supported for master slave pairs 3 2 14 4 RESTORING THE MASTER SLAVE CONFIGURATION TO STANDALONE OPERATION STANDARD MODELS ONLY First configure the master then the slave for standalone operation 1 If the units are in setpoint mode see PAR 3 2 7 tap either the CURRENT or VOLTAGE controls to take the units out of setpoint mode status display goes from SET to blank KLR010715 3 13 3 2 15 2 Using a thin tool e g a paper clip press the FUNCTION switch of the unit to be restored to standalone operation then rotate either the CURRENT or VOLTAGE control until the 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 master The DC AMPERES display shows the maximum number of units in the configuration 4 To change the configuration tap the DC OUTPUT switch once The DC VOLTS and DC AMPERES start blinking Rotate the CURRENT control until DC AMPERES display shows 1 Rotate the VOLTAGE control until DC VOLTS display shows 1 5 Press DC OUTPUT to accept the displayed settings The unit briefly flashes WAIT then restarts with the new settings press FUNCTION to abort without changing the settings NOTE Once the master is configured for standalone operation the slave status display
40. the power supply Refer to the KLR Developer s Guide for details on the use of triggering Kepco provides three instrument drivers IVI COM LabView G and VXI plug amp play which sim plify programming of the KLR power supply via the digital interfaces These drivers are described in the KLR Developer s Guide and can be downloaded from the Kepco web site at http www kepcopower com drivers REMOTE PROGRAMMING USING THE IVI COM INSTRUMENT DRIVER The IVI COM driver for KLR is available for download at www kepcopower com drivers Exam ples are provided in the KLR Developer s Guide REMOTE PROGRAMMING USING THE LABVIEW G INSTRUMENT DRIVER The LabView G driver for KLR available for download at www kepcopower com drivers includes a LabView G demonstration program that greatly simplifies programming the unit with a Windows compatible computer After running a setup a soft front panel is visible on the computer monitor that allows all the functionality of the local front panel The LabView G soft front panel controls are explained in the KLR Developer s Guide REMOTE PROGRAMMING USING THE VXI plug amp play INSTRUMENT DRIVER The VXI plug amp play driver for KLR available for download at www kepcopower com includes a demonstration program that greatly simplifies programming the unit via the GPIB or RS 232 ports with a Windows compatible computer After running a setup a soft front panel is visible on the computer monitor
41. the internal relay is configured for FAULT mode factory default setting see PAR 3 2 17 1 the relay will toggle to provide a com posite fault indication at the analog programming port The indication time is limited by internal hold up capacity for PWR faults as the unit shuts down when power is no longer sufficient to power the relay it de energizes a Overtemperature OTP Monitors heatsink temperature trips if it exceeds factory set limit b Overvoltage OVP or overcurrent OCP at the output See PAR 3 2 11 KLR 010715 c Fan failure FAN Monitors all three internal cooling fans trips if failure of any fan d Output Lead Fault OLF Monitors output power and sense leads trips if any discontinuity open circuit is detected in load connections e Source Power Loss PWR Monitors internal d c bus voltage at output of PFC trips if low a c input or PFC failure occurs 1 5 10 INTERNAL RELAY An internal relay provides common normally open and normally closed contacts available to the user via the analog I O connector This relay is normally programmed factory default to ener gize upon detection of a system fault FLT mode see PAR 1 5 9 for a list of faults The relay may also be programmed to be energized at the user s discretion from the front panel MAN mode or as part of a user specified program using LIST commands LIST mode Refer to PAR 3 2 17 1 for details 1 5 11 MASTER
42. the non volatile memory No internal adjustments are necessary The previ ous calibration is saved and can be restored if desired The original factory calibration can also be restored Calibration is password protected Refer to Section 4 for more information 1 9 1 5 4 1 5 5 1 5 6 1 5 7 1 5 8 1 5 9 OVERVOLTAGE OVERCURRENT PROTECTION Overvoltage and Overcurrent protection values can be individually programmed If the output voltage current exceeds the overvoltage overcurrent protection value the protection circuit latches the output off flashes an overvoltage OVP or overcurrent OCP error message on the status display and sets a status bit that can be retrieved through the RS 232 standard models only LAN E Series models only or GPIB port The N O and N C contacts of the relay pro vide status flags via the Analog I O port connector Refer to PAR 3 2 17 1 for more information USER DEFINED VOLTAGE CURRENT LIMITS LIMIT MODELS The KLR Power Supply can be programmed to User defined values that can be lower than the maximum values A KLR power supply configured in this way is referred to as a Limit Model For example the KLR 40 60 can be programmed for maximums of 40A 30V or 30A 35V Once the User defined limits are set programming of values exceeding the limit values will not be accepted Refer to PAR 3 2 9 for more information STORAGE OF USER PROGRAMMED ACTIVE SETTINGS The KLR Power Supply contains 40 memor
43. the previous setpoint value is restored after approximately 20 seconds Tap either adjustment control again to accept the displayed setting 2 In the setpoint mode both coarse and fine adjustment are available see PAR 3 2 4 to set coarse fine preference The coarse adjustment is approximately 100X the fine adjustment resolution Setpoint adjust can be done with output either on or off however the output can not be enabled while setpoint is active See PAR 3 2 5 Voltage and current settings are not allowed to exceed either a the limit model setting or b 83 396 of the protection value Attempts to set voltage or current beyond these limits will not be accepted The status display shows either gt MAX for limit model gt OVE for voltage protection or OCP for current protection to indicate which limit is being exceeded If a fault has been config ured for AUTO recovery the status display flashes AUTO for one second upon leaving Setpoint mode see PAR 3 2 17 3 2 LAST SETTING RECALL KLR is capable of saving the last setpoint values for voltage and current prior to unit shutdown and recalling them when the unit is next turned on Enable this function prior to power up by set ting Analog I O Switch 3 to the ON down position see Table 2 2 and Figure 2 2 Upon next power up each setpoint entry for voltage and current is stored in non volatile memory with lat est settings displacing prior ones When the power supply is turned
44. the setpoint registers for voltage and current Recovery requires that the user exit Setpoint mode and re enable the output either from the front panel or via one of the digital program ming ports Recovery cannot be initiated by toggling the remote inhibit line at the analog programming port This option provides greater operator convenience by eliminating the need to reboot the power supply while preserving a safe response output off but it is the user s responsibility to NOT attempt multiple consecutive restarts without eliminating the fault condition AUTOmatic When a fault configured for AUTO recovery is detected the output is dis abled as long as the fault condition exists Once the fault condition is no longer present e g the unit has cooled down after an overtemperature fault the output is enabled at the last actual settings for voltage and current as opposed to setpoints see PAR 3 2 10 3 for Last Setting Recall To alert the user to this risk if any fault is set to AUTO recovery the status display briefly shows AUTO after a any fault recovery b any output enable action or c upon leaving Setpoint mode In addition if AUTO recovery is selected for source power failure PWR faults the status display flashes AUTO for one second as part of the power up sequence WARNING When AUTOmatic recovery is selected upon removal of the fault condi tion the output recovers to the conditions programmed voltage current levels a
45. the unit will save the new calibration The status display reads DONE while cal ibration is being saved Once saved the unit enters Limit Model mode Follow the procedure in PAR 3 2 9 to set the limit model KLR 010715 4 4 KLR 010715 NOTE The limit model is always reset to the maximum model ratings EoMAx and lomax fol lowing complete calibration CALIBRATION USING VXI plug amp play DRIVER Calibration of the KLR can be performed using SCPI commands implemented through the VXI plug amp play Instrument driver The driver provides a graphical interface with informational dis plays and prompts which lead you through the calibration of the KLR This VISA compliant driver works with many GPIB cards from suppliers such as National Instruments and Hewlett Packard The following calibration procedure uses the soft front panel which is part of the VXI plug amp play driver for the KLR which can be downloaded from the Kepco website at www kepcopower com drivers Unzip the files and doubleclick on setup exe to install the driver The Kepco klr folder will be added to the Start Programs folder Doubleclick KLRCTRL exe to run the program and refer to the KLR Developer s Guide in the Kepco KLR folder for details about using the soft front panel For voltage calibration all loads must be disconnected and the sense terminals connected to the corresponding output terminals The digital voltmeter will be connected to the output of the p
46. 000 0 0 0 90 0 0 0 0 0 0 0 9 0 0 96 0 0 0 6 0 0 0 ff e 0 000000000 0006 9 9 0609260292020 0 0 0 0 0 0 KLR SERIES POWER SUPPLY FIGURE 1 1 KLR010715 1 1 1 2 KLR 010715 SECTION 1 INTRODUCTION SCOPE OF MANUAL This manual contains instructions for the installation and operation of the KLR series of 2400W output power stabilized voltage or current d c power supplies manufactured by KEPCO Inc Flushing New York U S A The KLR Developer s Guide covers the digital interfaces remote programming and can be downloaded from www kepcopower com support opmanls htmstklr WARNING DANGEROUS AND LETHAL POTENTIALS ARE PRESENT BOTH WITHIN THIS POWER SUPPLY AND AT THE OUTPUT Before proceeding to use the power supply read this manual very care fully Caution must be used when working with and making connections to this power supply Use only wires with the proper voltage rating for high voltage connections GENERAL DESCRIPTION The KLR Power Supply Series Figure 1 1 are automatic crossover 2400 watt voltage current stabilizers with a full rectangular output characteristic within the voltage and current ranges listed in Table 1 2 Five KLR Models and five KLR E Series Models are available as listed in Table 1 2 The stan dard Models are GPIB and RS 232
47. 1 2 7 7 1 Lo8d Shatilg eii eet a A N 2 13 2 7 8 Master Slave Configurations Standard Models Only sene 2 14 2 7 9 Analog VO COnneCtiOns ez ricorrere tenu et ec kan n rure tens ete div ba des ain beer ro eed ees 2 14 2 8 Digital Connections va 234 5 2 pn RU Bb ER he EE E ER ed d A 2 15 2 8 1 GPRIBSGOonNnectlonSs SS WD eh ett eee et tees NR 2 15 2 8 2 RS 232 Connections Standard Models Only sse nennen 2 15 2 8 3 LAN Connections E Series Models Only eese nennen nennen nnns 2 15 KLR USR 020498 i TABLE OF CONTENTS SECTION PAGE SECTION 3 OPERATION 3 1 General zer UR IRI BUE 3 1 3 2 Local Mode Operation oe Ree ade SE ER 3 1 3 2 1 Turning the Power Supply On on ott rete OR t RE WER k kak h ka da ve k n ARAM WELA bik sae 3 1 3 2 2 setting Eocal Remote Mode gemere taedis ivt ug ipee etr need 3 3 3 2 2 1 Remote with Local Front Panel Lockout E kk kk nennen 3 3 3 2 3 Menu Sf UC r 3 say Au ese A ka ette rete etd tpe teet cree cete eg dn ves ut eoe QEN d eons ant eet TERR etus 3 4 3 2 4 Setting VOLTAGE and CURRENT Control Coarse Fine Preference see 3 4 3 2 5 Enabling Disabling Output Power sssssssseseeeeeeeeneneneen nennen nennen nnne ener A KA A KA AK nnne nnne nene 3 5 3 2 6 Enabling Disabling the Output using Remote Inhibit sseseseeeeeeeeen nennen 3 6 3 2 7
48. 1 and Cref pin 3 to GROUND pin 9 11 13 or 15 of analog port to adjust the setpoint values for output voltage and current proportionally between minimum and maximum limit model limits Programming input pins are only active when analog port is enabled See PAR 3 4 2 for details How do adjust voltage and current setpoints using an external resistance Set analog I O DIP switch positions 1 and 2 down to use external resistance for remote analog programming of voltage and current respectively Full scale programming resistance is factory set at 10KOhms to alter full scale value see PAR 3 2 17 4 and use 1000 ohms per volt scale factor Apply a 0 10KOhm resis tance from Vref pin 1 and Cref pin 3 to GROUND pin 9 11 13 or 15 of analog port to adjust the setpoint values for output voltage and current proportionally between minimum and maximum limit model limits Programming inputs are only active when analog port is enabled See PAR 3 4 1 for details How do I Read back operating voltage and current Analog signals proportional to actual output voltage and current levels are available at VOLT RBACK pin 6 and CURR RBACK pin 7 of analog I O port Full scale signal level is the same as that for full scale programming Readback signals are always available at analog port even if analog programming is not enabled How do exit remote analog programming mode Simultaneously depressing and releasing both Voltage and Current knobs forces
49. 17 4 TEMP ANPR PAR 3 2 17 5 PWR LBT RTN CAL PAR 4 1 L RTN FIGURE 3 1 FUNCTION SWITCH MENU STRUCTURE 4 To change the preference tap DC OUTPUT switch once The status display changes to ADJ and the DC VOLTS display starts to blink Rotate either the VOLTAGE or CURRENT control to alternate between C F and F C 5 Tap DC OUTPUT switch to accept new preference status display briefly shows WAIT then changes to ADJ and DC VOLTS display stops blinking To exit rotate either the VOLTAGE or CURRENT control until status display reads RTN and tap DC OUTPUT switch to return to previous menu ENABLING DISABLING OUTPUT POWER When the power supply is turned on the output is normally disabled DC OUTPUT indicator is off and the DC VOLTS and DC AMPERES displays show the programmed output voltage and current set points and the status display reads SET However if the unit has been set to AUTO fault recovery the output may be enabled when the unit is turned on see PAR 3 2 17 3 2 To enable the output first tap either VOLTAGE or CURRENT control once to exit setpoint mode SET disappears from the status display then tap the DC OUTPUT switch once The DC OUT PUT indicator goes on to indicate the output is enabled 3 5 3 2 6 3 6 To disable the output press and release the DC OUTPUT switch again The DC OUTPUT indi cator goes off While in the setpoint mode Status display reads SET the output c
50. 3 15 to programming the power supply output Assuming the load causes the power supply to operate in voltage mode varying source voltage V2 from 0 to maximum causes the output voltage of the power supply to vary linearly from 0 to full scale while V1 can be used to adjust the current limit When the power supply operates in current mode V2 will adjust the voltage limit and V1 will adjust output current Factory default full scale F S voltage programming is 10V To set full scale voltage program ming to a lower value see PAR 3 2 17 4 3 37 NOTES FIGURE 3 15 ANALOG PROGRAMMING OF OUTPUT VOLTAGE OR CURRENT USING VOLTAGE 3 4 3 CHANGING OVERVOLTAGE OR OVERCURRENT PROTECTION VALUES IN ANALOG PROGRAMMING MODE Overvoltage and overcurrent values can not be changed using analog remote programming this can only be done by issuing a command via the GPIB or RS 232 port or via local mode from the front panel enter local mode by pressing the VOLTAGE and CURRENT adjustment controls at the same time then see PAR 3 2 11 If the panel is locked and RS 232 or GPIB access is not possible turn the power supply off set ANALOG MO DIP switch position 5 to OFF and then power up again to unlock the panel PAR 3 2 2 1 After the settings have been changed turn the power supply off set ANALOG I O DIP switch position 5 to ON to relock the panel then turn on the power supply to restore Analog Remote Programming
51. 715 KLR SVC 020498 LIST OF TABLES TITLE PAGE Rapid Output Discharge Circuit Improvement in Output Response Time eee 1 2 Model Parameters 2 dai eee pet ee ete ree eee ge kad Vur W Ne es 1 3 IKERISDeGIfIGIONS Ne 1 3 Equipment Supplied Pastis nie nianen E Rr Eya Ek 1 11 ACCOSSOTLIOS EE 1 12 Safety Symbols 2 eth ee e ERREUR Fa EE PED A RR eh EL ee RS 1 12 ContrelsiiandilndiealOSL EE 2 1 Analog O Switch EunetlOnS EE 2 2 IEEE 488 Port Connector J4 Pin Assignments ee 2 4 RS 232 Port Connector J3 Pin Assignments Standard Models Only cece 2 4 LAN Port Connector J7 Pin Assignments E Series Models Only s 2 5 Control Input Terminal block Assignments E LEE Eek kk kk eke k kek AKA nennen nnne nnns KA RAKR 2 5 Analog I O Connector J2 Pin Assignments ELEE kk kk kk kk kk enne nennen KA KA AR A 2 5 Power up Built in Test Error Codes ELEEEE EEE kk kk k kk nnne nne kk KA KAKA KK KAK AKA KK A AK A KA RA A KK KA A AR A 3 2 Fault Recovery Configuration Ek 3 20 Factory DefaultsUnit PasswordS xis dle as l gila need cene etre cta Waye di da dina hein eee Sr e xa ERR N 4 10 9900 A 8600 ee9000 60026020 900 e 0 9 ec 9 0 Ne GG N 980000 NRT 009908 080000 NN 9 WHOS 008 QR NN SND 9900000 900 06
52. Allows single signal to control output on off See PAR 3 2 6 9 GND Ground 2 10 RELAY NC Connected to RELAY COM pin 4 for relay not energized condition T 11 GND Ground 12 ANALOG CTRL Enables or disables analog programming see PAR 3 4 1 Analog programming disabled default no connection 0 Analog programming accepted use jumper on mating connector to connect to pin 9 11 13 or 15 ground 13 GND Ground 14 EXT TRG Performs same function as SCPI TRG command if unit is programmed for external triggering via digital remote mode Transition from 1 5V to 0 ground causes values established by VOLT TRIG and CURR TRIG commands to become unit setpoints see PAR 3 3 2 External Triggering 15 GND Ground 7 Refer to PAR 3 2 17 1 to configure internal relay All GND connections are common KLR 010715 2 5 2 3 2 4 2 5 2 6 SOURCE POWER REQUIREMENTS This power supply operates with the installed circuit breaker from single phase a c mains power over the voltage and frequency ranges specified in Table 1 3 without adjustment or modification COOLING The power devices used within the power supply are maintained within their operating tempera ture range by means of internal heat sink assemblies cooled by three internal d c type cooling fans ALL INLET AND EXHAUST OPENINGS AT THE FRONT AND REAR OF THE POWER SUP PLY CASE MUST BE KEPT CLEAR OF OBSTRUCTION TO ENSURE PROPER AIR ENT
53. Developer s Guide but can not be controlled from the web interface Click Add to List button to add a step the information displayed in the Voltage Current and Dwell boxes to the List steps shown to the right 20 15 V 120 60 A KLR 20 120 SN A001776 SAVE LIMIT RECALL MODEL Step Voltage Current Dwell OUTPUT PROTECTION FIGURE 3 11 LIST DIALOG BOX Clearing the List Once a LIST has been started the individual steps can not be changed the only option is to delete the LIST by pressing the Clear List button to start over In addition per forming any of the following operations will also clear the list changing overcurrent or overvolt age PROTECTION settings unit RESET clicking RST changing LIMIT MODEL settings and exiting the OPERATE INSTRUMENT page Create Voltage or Current Ramps In addition to adding single steps the user may add multi ple steps to produce voltage or current ramps Clicking the Voltage Ramp or Current Ramp button opens similar dialog boxes see Figure 3 12 Enter the starting and ending ramp values the number of intermediate steps including start and end the total time 0 5 to 655 36 sec onds to go from the start to the end of the ramp and a constant current for voltage ramp or voltage for current ramp for each step of the ramp Dwell times for each step will be calculated by the firmware total time number of steps and must be greater than 0 5 second Clicking the Create Ramp butt
54. E LAN PAGE The factory default is that passwords are not needed to access password protected areas and none of the three passwords are established To set a password for the first time leave the CURRENT field blank enter the new password in the NEW and REPEAT fields then click SUB MIT Subsequent changes require the current password to be entered in the CURRENT field If a password is lost or forgotten the factory default state no password required can be restored from the front panel using the LAN Reset function see PAR 3 2 15 To change a parameter enter the correct data and or click the appropriate checkboxes then click SUBM IT to save the change or NO CHANGE to clear and reload the page without saving If the data is not entered within 20 seconds after the last keystroke the data will revert to the previous value If the LAN CONFIGURATION password was set you will be prompted to enter the password before the changes are accepted When SUBMIT is clicked after new IP address information is entered the front panel LAN indi cator blinks rapidly while the unit validates the IP address If the address is valid the browser returns to the INSTRUMENT DESCRIPTION page If the address entered is already in use the following note appears towards the top of the page 3 29 3 3 6 6 3 30 NOTE IP Address is in use Click CONFIGURE LAN and choose another IP to correct An IP address that is not already in use must be entered and submi
55. ER INSTALLED IF USED THESE IODES MUST BE LOCATED IN THER NEGATIVE POWER LEAD OBSERVE ROPER DIODE POLARITY AND ALL APPROPRIATE SAFETY AND HEAT JISSIPATION REQUIREMENTS FIGURE 2 5 PARALLEL CONNECTIONS USING REMOTE SENSING 2 12 KLR 010715 2 7 7 1 KLR 010715 LOAD SHARING When operating two or more power supplies in parallel either for capacity or redundancy it is desirable to distribute the load equally among all of the power supplies in order to improve per formance reduce stress and increase reliability KLR power supplies incorporate active circuitry which forces multiple power supplies wired in parallel to share load current both in voltage and current mode regulation The KLR employs a single wire connection between paralleled power supplies forming a master slave relationship as follows the highest voltage unit becomes the master and all of the remaining units are slaved to it via the current share signal CS available at the rear panel terminal A3TB3 Figure 2 2 which boosts the slave outputs in order to increase load share A maximum boost limit prevents the slave units from following a defective master into an overvoltage condition or from creating a load hazard if either the slave itself or the load sharing system is defective When implementing load sharing the user must ensure that all power supplies are attempting to regulate to the same voltage at the same location and must minimize the possibility of load s
56. Efficiency x Input 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 180V a c and provides the necessary overload protection to the power supply s internal circuitry The user must provide a properly sized and rated mains lead line cord and service with a current rating compatible with the anticipated input current Operation at rated load power 2400W over the full rated source voltage range 180 265V a c requires a branch service rating of 20 Amperes Kepco recommends use of 12 AWG 2 0 mm for primary wiring For operation at output power of 2000W or less or with source voltage not less than 200V a c branch service may be reduced to 15 Amperes using 14 AWG 1 6 mm wiring Contact Kepco Applications Engineering for details For continuous operation at output power levels lower than 2000 watts or for other line cord styles contact Kepco Applications Engineering for additional options CONNECTIONS Source power is connected at the rear panel of the KLR power supply see Figure 2 2 via the IEC 320 style recessed power inlet connector which provides interface to a three wire safety line cord via a polarized mating plug A user wirable mating connector is provided Terminal assignment follows internationally accepted conventions It is the user s responsibility to ensure that all applicable local codes for source
57. HANGING GPIB ADDRESS KLR supports GPIB addresses from 1 to 30 the factory default GPIB address is 6 To change the address from the front panel proceed as follows 1 If the status display shows SET tap either the CURRENT or VOLTAGE controls to take the unit out of setpoint mode status display goes from SET to blank 2 Using a thin tool e g a paper clip press the FUNCTION switch once then rotate either the CURRENT or VOLTAGE control until the display reads ADDR the active GPIB address is visible in the DC AMPERES display To change the address proceed to step 3 3 Tap the DC OUTPUT switch The GPIB address visible in the DC AMPERES display begins blinking 4 Rotate the CURRENT control to change the GPIB address then tap the DC OUTPUT switch to accept the displayed GPIB address The display briefly reads DONE then returns to ADDR 5 Rotate the VOLTAGE control until display reads EXIT then tap the DC OUTPUT switch to exit CHANGING RS 232 BAUD RATE STANDARD MODELS ONLY The factory default RS 232 baud rate is 38400 To change the baud rate from the front panel proceed as follows 1 If the status display shows SET tap either the CURRENT or VOLTAGE controls to take the unit out of setpoint mode status display goes from SET to blank KLR010715 3 2 14 3 2 14 1 KLR010715 2 Using a thin tool e g a paper clip press the FUNCTION switch once then rotate either the CURRENT or VOLTAGE control until the display
58. NG FOR CALIBRATION Turn on power supply exit SET mode by tapping either VOLTAGE or CURRENT control and using a thin tool e g a paper clip press the FUNCTION switch once until the status display reads LMT then rotate either the VOLTAGE or CURRENT control in either direction until sta tus display reads UTIL Tap the DC OUTPUT switch once then rotate either the VOLTAGE or CURRENT control in either direction until status display reads CAL The last calibration date is displayed see PAR 4 3 4 for details and the DC AMPERES display reads 0000 with the left most digit blinking Tap DC OUTPUT switch to enter calibration mode The status display shows PASS Enter the password see PAR 3 2 8 and tap DC OUTPUT switch to accept the number KLR 010715 4 3 1 4 3 2 KLR 010715 9 When the password is accepted status display reads V Rotating either VOLTAGE or CURRENT control continuously cycles through all the calibration choices The status display reads V for voltage calibration C for current calibration EXT for remote analog cali bration and EXIT to save the calibrated results Tap the FUNCTION switch to exit calibration WITHOUT saving any calibration data see PAR 4 3 4 Tap the DC OUTPUT switch to select the displayed choice NOTE Calibrations may be done in any order 10 Proceed to PAR 4 3 1 for voltage calibration PAR 4 3 2 for current calibration PAR 4 3 3 for external calibration or PAR 4 3 4 to exit ca
59. PANY KEPCO kEpcowg MANUAL PRODUCT SUPPORT THE POWER SUPPLIER E s SINCE 1946 Aes LR Tees Ta DRIVERS et INSTRUMENT DESCRIPTION OPERATE eee INSTRUMENT OVER VOLTAGE OVER CURRENT CONFIGURE POWER LEAD FAULT i INSTRUMENT OVER TEMPERATURE NE CONFIGURE LAN ID INSTRUMENT HELP RELAY FAULTS KEPCO INC 131 38 Sanford Avenue Flushing NY 11352 USA Tel 718 461 7000 Fax 718 767 1102 www kepcopower com email hq kepcopower com Copyright 2012 Kepco Inc All rights reserved FIGURE 3 5 WEB INTERFACE CONFIGURE INSTRUMENT PAGE LAN CONFIGURATION USING WEB INTERFACE E SERIES MODELS ONLY Click on CONFIGURE LAN at the left to view the LAN Configuration page Figure 3 6 The parameters that can be configured from this page are Host Name DHCP Description IP Address Subnet Mask address Default Gateway Address and DNS Server Address Separate checkboxes allow enabling of DHCP AUTOIP and PING Descriptions of these terms can be viewed by clicking the HELP box at the left If a data entry fault condition exists an alert window indicates the type of fault Click OK to close the window the SUBMIT button is disabled until the fault is corrected There are three passwords shown on this page which control access to the web pages only not to be confused with the unit password see PAR 3 2 8 which is needed for calibration chang ing limit model etc All three web
60. PUT CONFIGURATION OUTPUT SENSE LINES MUST BE CONNECTED FOR PROPER OPERATION EITHER LOCALLY OR AT THE LOAD REMOTE OBSERVE POLARITIES THE S TERMINAL MUST BE CONNECTED TO EITHER M LOCAL OR LOAD REMOTE AND THE S TERMINAL MUST BE CONNECTED TO EITHER M LOCAL OR LOAD REMOTE LOCAL SENSING REMOTE SENSING SELECT Local sensing factory default configuration is established by connecting terminal TB4 S to TB5 M and TB1 M to TB2 S see Figure 2 2 The power supply is shipped with two jumpers installed to obtain local sensing Remote sensing is established by first removing the factory installed local sensing jumpers between S and M and between M and S The S and S lines must be connected at the load see Figure 2 3 A high frequency bypass network consisting of two capacitors connected across the load as shown in Figure 2 3 is recommended to reduce noise in the sense loop KLR 010715 2 7 6 2 7 7 KLR 010715 L N NOTE REMOVE LOCAL SENSING JUMPERS HEN SING REMOTE SENSING 4r e cw OnF HF BYPASS j ET RK EAR PANEL ae d A JF FIGURE 2 3 REMOTE SENSING SERIES OPERATION Units may be connected in series to obtain higher output voltages Each power supply in the series ma
61. RESTORING PRIOR CALIBRATION VALUES Calibration values for KLR are stored in three separate locations in flash memory designated Factory Prior and Working Each time the unit is calibrated the Working values are moved to Prior and the new calibration values are stored in Working Factory values cannot be altered by the user The values in Working are the ones used by the power supply during operation During item final test at Kepco Factory values are established during calibration and are copied to all three locations Should a unit be returned to Kepco for repair or retest the recalibration accompanying this testing will overwrite the contents of all three locations with the latest Factory values Should the need arise it is possible to replace the Working calibration values with the either the Factory or Prior calibration values via one of the digital programming ports using the SCPI com mand string CAL DMP source CAL COPY destination where source and destination refer to the location of calibration values desired FACT for factory PRIO for prior and WORK for working The calibration values are protected by the calibration password For example to restore the Factory calibration values as the Working values the user would send the following commands presented in short form with xxxx representing the applicable calibration password SYST PASS CEN xxxx CAL DMP FACT CAL COPY WORK SYST PASS CDIS xxxx The Utilities secti
62. ROBLEMS If the LAN indicator stays off First verify that the host end of the LAN connection is active switch or hub is powered on These devices typically include indicators that indicate port activity so if the port to which the power supply is connected is inactive dark try connecting to a different port Inspect the LAN cable connections at both ends ensuring that the plugs are fully engaged with their respective receptacles Try replacing the LAN cable with a cable known to be good fthe KLR is connected directly to the computer s LAN port rather than through a switch hub or router the connection must be made using a null modem crossover cable that reverses the transmit and receive pairs NOTE The KLR LAN input will not do this swap automatically If the LAN indicator is on without blinking but communication problems persist The cause may be a fixed address on the PC that is incompatible with the AUTOIP range 169 254 xxx xxx of the KLR Refer to PAR 3 2 15 to change IP1 and IP2 and assign a fixed IP address to the KLR in which the first three groups are identical to those of your PC s IP address Refer to PAR 3 3 6 3 for browser types and versions supported and settings required There can be latent delays in establishing communication between various devices on the LAN network hub especially when the devices are powered on asynchronously As a result a steady LAN indication may begin blinking again when a
63. RUMENT to flash physical LAN indicator on KLR
64. RY AND EXHAUST Although not a requirement it is recommended that side and top vent openings be clear of obstruction for more efficient cooling Periodic cleaning of the power supply interior is recommended by authorized service personnel only see KLR Service Manual for instructions If the power supply is rack mounted or installed within a confined space care must be taken that the ambient temperature which is the temperature of the air immediately surrounding the power supply does not rise above the specified limits see Table 1 3 PRELIMINARY OPERATIONAL CHECK A simple operational check after unpacking and before equipment installation 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 Table 2 1 explains the functions of operating controls and indicators NOTE This test must be performed with IEEE 488 RS 232 standard models LAN E Series models and ANALOG MO ports disconnected and ANALOG I O SETTINGS switch positions 3 and 5 set to OFF 1 With POWER circuit breaker set to OFF position connect the power supply to source power see PAR 2 7 2 2 With no load connected set POWER circuit breaker to the ON position see PAR 3 2 1 Each time the unit is turned on an internal self test is performed After the test has been successfully completed the unit displays the following The sta
65. S 232 or LAN port SYST KLOC OFF NOTE If the front panel is unlocked by SCPI command the unit will be set to Remote with Local Lockout when it is turned on again Set ANALOG I O DIP switch posi tion 5 to OFF to disable Remote with Local Lockout MENU STRUCTURE Many KLR functions are accessed via the FUNCTION switch This switch is disabled when the unit is in setpoint mode If the status display shows SET tap either the CURRENT or VOLTAGE controls to take the unit out of setpoint mode status display goes from SET to blank Pressing FUNCTION switch using a thin tool e g a paper clip accesses the menu and sub menu structure indicated on the four character status display see Figure 3 1 To scroll through menu and submenu selections rotate either the DC VOLTS or DC AMPERES control Tap the DC OUTPUT switch to select and proceed Exit any submenu by tapping the DC OUTPUT switch when the status display shows RTN to return to the previous menu To exit the Function menu after all submenus have been exited tap the DC OUTPUT switch when the status display shows EXIT Pressing the FUNCTION switch once within any menu or submenu will also exit the Function menu SETTING VOLTAGE AND CURRENT CONTROL COARSE FINE PREFERENCE The VOLTAGE or CURRENT controls are shipped from the factory so that rotating either con trol produces a coarse adjustment pressing the control in while rotating produces a fine adjust ment This can be reversed so that n
66. USER MANUAL KLR SERIES POWER SUPPLY 2400 WATT PROGRAMMABLE POWER SUPPLY KEPCO INC MODEL An ISO 9001 Company KLR SERIES POWER SUPPLY ORDER NO REV NO IMPORTANT NOTES 1 This manual is valid for the following Firmware Versions FIRMWARE VERSION NOTE 10 07 and higher 2 A Change Page may be included at the end of the manual All applicable changes and revision number changes are documented with reference to the equipment serial num bers Before using this Instruction Manual check your equipment serial number to identify your model If in doubt 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 manual are protected by copyright Reproduction of any part can be made only with the specific written permission of Kepco Inc Data subject to change without notice 3 kEPco P N 243 1297 r2 THE POWER SUPPLIER KEPCO INC 131 38 SANFORD AVENUE FLUSHING NY 11355 U S A TEL 718 461 7000 FAX 718 767 1102 email hq Qkepcopower com World Wide Web http www kepcopower com Declaration of Conformity Application of Council directives 2006 95 EC LVD 2004 108 EC EMC Standard to which Conformity is declared EN 61010 1 2001 Safety requirements for electrical equipment for measurement control and laboratory us
67. VE LIMIT OUTPUT PROTECTION RECALL RESET LIST MODEL FIGURE 3 13 LIMIT MODEL DIALOG BOX REMOTE PROGRAMMING USING ANALOG SIGNALS Vref and Cref present at the Analog Port see J2 Figure 2 2 and Table 2 7 are the respective voltage and current programming inputs used for programming the power supply output in pro portion to either and analog voltage drive signal or programming resistance Normally inactive these two inputs are activated by connecting the ANALOG_CTRL pin of J2 to one of the four GND pins before switching the power supply on Once the power supply start up sequence is completed the status display reads aRem The default full scale voltage level of both Vref and Cref is 10V each parameter can be set independently to accommodate lower full scale inputs see PAR 3 2 17 5 While the status display reads aRem Analog Remote mode the local output controls are locked out and digital programming commands are ignored However local displays remain functional and digital queries related to status and readback will be accepted and executed In addition the analog port provides analog readback outputs corresponding to output voltage and current via the signals VOLT R_BACK and CURR R BACK respectively These outputs are active at all times and do not require the unit to be operating in Analog Remote mode The default full scale voltage level of both VOLT R BACK and CURR R_BACK is 10V Similar to Vref and Cref the readback signal can
68. ads FLT factory MAN manual or LIST Then press DC OUTPUT switch to save selection a If FLT is selected rotate VOLTAGE or CURRENT control to select NORM V C Or C V in the status display 1 To select NORM tap the DC OUTPUT switch to save selection unit returns to RELY menu 2 To select v C or C gt V first set the delay While V gt C or C gt V is in the status dis play the DC AMPERES display shows the delay in seconds from 000 5 to 128 0 NNND where NNN is an integer from 0 to 128 and D will be either 0 or 5 000 0 is not permitted The delay determines the length of time that the unit must be operat ing in the new mode before energizing the relay The factory default delay time is set to 1 0 seconds to prevent false tripping of the relay during application of output power to low impedance or highly reactive loads If false tripping occurs this delay may be increased as needed To change the delay press in and rotate either the VOLTAGE or CURRENT control release the control when the DC AMPERES display shows the desired delay Tap the DC OUTPUT switch to save selection unit returns to RELY menu NOTE Once the relay turns on in V gt C or C V mode the relay will go off again when the unit transitions back to the original mode or when the output is turned off b To select MAN tap the DC OUTPUT switch to save selection The DC VOLTS display flashes the present relay state ON or oFF To change the state
69. age is set for maximum rated voltage CHANGING THE CALIBRATION PASSWORD The 4 digit Unit password is required for to enter calibration mode The factory default Unit password is listed in Table 4 1 To change the password from the front panel proceed as follows 1 If the status display shows SET tap either the CURRENT or VOLTAGE controls to take the unit out of setpoint mode status display goes from SET to blank 2 Using two thin tools while holding the PROTECT switch in tap the FUNCTION switch once Status display reads PASS NOTE The FUNCTION switch must be actuated within two seconds i e before PROT appears in the status display To exit this procedure without changing the password rotate the VOLTAGE control 3 Tap the DC OUTPUT switch Status display reads OLD 4 Rotate the CURRENT control until DC AMPERES display shows old password Tap the DC OUTPUT switch to enter Status display shows NEW 5 Rotate the CURRENT control until DC AMPERES display shows new password Tap the DC OUTPUT switch to enter Status display shows RPT 6 Rotate the CURRENT control until DC AMPERES display reads new password Tap the DC OUTPUT switch to enter Status display reads DONE and then goes blank TABLE 4 1 FACTORY DEFAULT UNIT PASSWORDS MODEL UNIT STANDARD OR E SERIES PASSWORD KLR 20 120 2012 KLR 40 60 4060 KLR 75 32 7532 KLR 150 16 1516 KLR 300 8 3008 KLR 010715 4 6 KLR 010715
70. al however when accessing this connector from distant locations or high noise environments it is recommended that a shielded cable be used with the shield ter minated to the system s single point ground a Analog Programming Enable ANALOG_CTRL Connect pin 12 Analog Control to pin 9 11 13 or 15 ground to enable analog I O pro gramming b External Voltage and Current Programming V Ref and C Ref Twist the voltage programming signal V Ref pin 3 Current Programming signal C Ref pin 1 and ground pin 9 11 13 or 15 Configure Analog I O switch positions 1 and 2 to use either voltage or resistance as the programming source Factory default for full scale output is 10V or 10 Kohms see PAR 4 3 3 to set lower values for full scale output c Voltage and Current Readback VOLT RBACK and CURR RBACK Twist the voltage readback signal VOLT RBACK pin 6 Current readback signal CURR_RBACK pin 7 together with ground pin 9 11 13 or 15 Full scale readback volt ages are identical to selected full scale programming voltages see PAR 4 3 3 d Remote Inhibit REM INH Twist remote inhibit pin 8 together with ground pin 9 11 13 or 15 See PAR 3 2 17 3 1 to configure active high or low and PAR 3 2 6 to enable disable the output using remote inhibit KLR 010715 2 8 2 8 1 2 8 2 2 8 3 KLR 010715 e Fault Connections RELAY NC RELAY COM RELAY NO It is recommended that normally open and normally closed
71. annot be turned on pressing DC OUTPUT has no effect If output was on while setpoint mode was entered pressing DC OUTPUT will disable the output For setpoint adjustment refer to PAR 3 2 10 2 To enable disable the output using Remote inhibit refer to PAR 3 2 6 See PAR 3 2 17 3 2 for details about automatic enabling of the out put after recovering from a fault ENABLING DISABLING THE OUTPUT USING REMOTE INHIBIT The Remote Inhibit zINH signal applied to analog I O port pin 8 see PAR 2 7 9 can be used as a remote inhibit or emergency shutdown when in either Local or Digital modes One use of this signal in either Local or Digital mode is as a safety interlock to prevent a potentially hazard ous output during system servicing When in Analog Control mode this signal can be used for remote on off control of the output This signal is a TTL signal that can be programmed to be active turn the output off for either a TTL high logic 1 or TTL low logic O see PAR 3 2 17 3 1 If zINH is set to be active for low an open condition at pin 8 causes the output state to default to ON If zINH is set to be active for high an open condition at pin 8 causes the output to remain off If quick boot see PAR 3 2 17 2 is off and rrNH is set to high upon power up the status display will flash rINH at the end of the start up sequence to remind the user of this condition see PAR 3 2 1 LOCAL CONTROL MODE For Local Control mode the Remot
72. ay reads C O Click the button to increase and the to decrease the output current until the DVM reads as close as possible to minimum positive or zero current Calculate current as follows Amperes DVM reading Volts Shunt Resistance Ohms 4 Click the PRESS TO ACCEPT button to accept the value The status display reads CMAX Click the button to increase and the to decrease the output current until the DVM reads as close as possible to maximum rated current Calculate current as follows Amperes DVM reading Volts Shunt Resistance Ohms 4 8 KLR 010715 5 Click the Press to ACCEPT button to accept the value the status display now reads OUTC At the ANALOG I O PORT J2 connect the DVM to CURR_RBACK and GND as shown in Figure 4 1 Click the button to increase and the to decrease the output current until the DVM reads as close as possible to 10V 6 Click the PRESS TO ACCEPT button to accept the value The status display will not change Click the ANALOG REF button on the calibration window to proceed to external calibration see PAR 4 4 3 4 4 3 ANALOG REFERENCE CALIBRATION VXI plug amp play DEMO During analog reference calibration the external analog reference voltages used to establish full scale output current and voltage are calibrated 1 Click the ANALOG REF button on the Calibration Window the Analog Reference Calibration Window Figure 4 5 appears and the statu
73. b Interface Home Page Unit Description ssseseeeeneeenenn emm 3 27 Web Interface Configure Instrument Page sssssssseseeeeeneneen nennen nennen neret nnne nnn 3 28 Web Interface Configure LAN Pade 3 29 Web Interface Operate Instrument Page nennen nennen KA A KAK HAA ntn enne 3 30 Protection Dialog B 4r i e been HR AREN Ae R n SR ORE ER 3 31 Save Recall Dialog BOX erp eec abe EE el a Feo eene Siege Gede e K e We n 3 31 Reset Dialog BOX E ne cler ERI no UR n mm l 3 32 List Dialog BOX siio 3 33 Adding Multiple Steps Ramps to List eene nennen nennen nenne KA KAR neni 3 34 timit Model Dialog Boxe sik ueterem tee text eee cti co e ei a aude sey eet e etes 3 35 Analog Programming of Output Voltage or Current using Resistance EAT 3 36 Analog Programming of Output Voltage or Current using Voltade lt 3 38 Analog Port Wiring for Calibration x sis d 4 lily sa r ka aka Wa Van eh g n di s kr Oo ba n v Tsp Ria 4 2 Galibratio7WWIGdOWSS i n re eec mm 4 6 Voltage Calibration Window cr temet Ar Rene ie a eM n CREE 4 7 Current Calibration WiDdOoW Kilk sue ya EMEL Te EU Ue te RUE Ote ie C Rea ted 4 8 Analog Reference Calibration Window nennen nennen KAK AKA KA A KAK KA AKA 4 9 KLRUSR 010
74. citance Table 1 1 illustrates the typical performance improvement that can be expected with an open circuit output TABLE 1 1 RAPID OUTPUT DISCHARGE CIRCUIT IMPROVEMENT IN OUTPUT RESPONSE TIME Nominal Internal Output Maximum Fall Time 1 5 x Co KLR Model No Capacitance Test Voltage ie um ceu Ue cerro Co without RODC with RODC 1 KLR 20 120 13000 pF 20V 675 msec 30 msec KLR 40 60 2 7280 uF 40V 1460 msec 30 msec KLR 75 32 5600 uF 75V 3690 msec 25 msec KLR 150 16 2 2200 uF 150V 8940 msec 30 msec KLR 300 8 2 550 uF 300V 8720 msec 26 msec 1 Values shown assume that an external capacitance of 1 2 value of CO is connected across the output terminals 2 Specifications listed apply to both standard and E Series models The RODC circuit will support continuous repetitive discharges from rated model voltage to zero at rate of up to 1 Hz for the 20V and 40V models and up to 0 5 Hz for the 75V 150V and 300V models Smaller discharge steps will be supported at higher continuous rates contact Kepco Applications Engineering for additional details The RODC circuit employs protection against both peak energy and average power overload conditions by disabling only the RODC function until conditions recover to normal range unit performance remains otherwise unaffected Note that RODC Option units support the TRANsient command see KLR Developer s Guide for details SPECIFICATIONS Table 1 2 lists t
75. d models is available directly via either the IEEE 488 2 GPIB or RS 232 ports using SCPI commands Digital control for E Series models is available directly via either the IEEE 488 2 GPIB port using SCPI commands or via the LAN port using SCPI com mands or web pages Most features available in local mode can be accessed in remote mode through digital programming as well as some that are only available via digital remote program ming PAR 3 3 2 Front panel indicators showing operating mode and output voltage and cur rent are active when digital programming is used Refer to the KLR Developer s Guide for more information about digital programming ANALOG PROGRAMMING KLR Power Supplies can also be controlled remotely using switch selectable voltage or resis tance Analog programming functions include voltage and current programming enabling dis abling the output and voltage and current readback see PAR 3 4 Full scale programming readback can be programmed using either an input analog voltage or by an input analog resistance See PAR 3 4 for more information DIGITAL CALIBRATION Internal adjustments of the KLR Power Supply are automatic Calibration can be performed in either local or remote using the VXI plug amp play demo program digital mode using a calibrated DVM and a corresponding precision shunt resistor Calibration constants for programming and read back activities are calculated by the microcon troller and stored in
76. djust VOLTAGE adjust knob clockwise until Status display reads MAX Tap either VOLT AGE or CURRENT adjust knob once to enter values Verify Status display is blank 6 Connect a digital voltmeter DVM to the M and M terminals on the rear panel 7 Press and release DC OUTPUT switch to enable the output 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 0596 of the maximum voltage of the unit 9 Compare the voltage reading of the DC VOLTS display with that of the DVM the difference between the two should not exceed 0 196 of the maximum voltage of the unit 10 Enter different value for output voltage then repeat steps 8 and 9 using different values for programmed voltage 11 Disable the output by pressing and releasing DC OUTPUT switch verify front panel DC VOLTS and DC AMPERES displays read 0 0V and minimal current and the DC OUTPUT indicator is off INSTALLATION RACK MOUNTING The unit is intended to be mounted directly in a 19 inch wide rack Optional slides see Table 1 5 can be used WIRING INSTRUCTIONS Interconnections between an a c power source and the power supply and between the power supply and its load are as critical as the interface between other types of electronic equipment If optimum performance is expected certain rules for the interconnection of source power sup ply a
77. e Part 1 EN 61326 1 2006 Electrical equipment for measurement control and laboratory use EMC requirements Part 1 General requirements Manufacturer s Name and Address KEPCO INC 131 38 SANFORD AVENUE FLUSHING N Y 11352 USA Importer s Name and Address Type of Equipment Component Power Supply Model No PRODUCT MODEL NUMBER Year of Manufacture lI the undersigned declare that the product specified above when used in conjunction with the condi tions of conformance set forth in the product instruction manual complies with the requirements of the Low Voltage Directive 2006 95 EC which forms the basis for application of the CE Mark to this product Place KEPCO Inc 131 38 Sanford Ave Flushing N Y 11352 USA Saul Kupferber Full Name Date NP OF SALES position 228 1728 DC COMP KLR 010715 Conditions of Conformance When this product is used in applications governed by the requirements of the EEC the following restric tions and conditions apply 1 For European applications requiring compliance to the Low Voltage Directive 2006 95 EC this power supply is considered a component product designed for built in applications Because it is incom plete in construction the end product enclosure must provide for compliance to any remaining electri cal safety requirements and act as a fire enclosure EN 61010 1 2001 CI 6 Cl 7 CI 8 and Cl 9 This power supply is desig
78. e standard models Only The factory default RS 232 baud rate is 38400 Using a thin tool press FUNCTION once status reads VIRT Rotate Voltage or Current knob until status reads BAUD AMPS display shows active baud rate x 1000 e g 38400 is displayed as 38 4 To exit rotate Voltage or Current knob till status reads EXIT then tap DC OUT PUT To change tap DC OUTPUT AMPS display blinks Rotate Current knob to change baud rate and tap DC OUTPUT to accept display flashes DONE then BAUD See above to exit See PAR 3 3 1 2 for additional RS 232 parameters How do I set up the LAN interface E Series models only See PAR 3 2 15 and refer to KLR Developer s Guide How do I operate the KLR using web pages via the LAN interface E Series models only See PAR 3 3 6 and refer to KLR Developer s Guide Use the PSfind program available at www kepcopower com utility to locate KLR s functioning on the LAN Highlight the unit and click Launch Web Page Click OPERATE INSTRUMENT Simulated front panel shows status of voltage cur rent output on off and operating mode CV or CC Operating functions supported from Operate Instrument page Set output on off and output voltage current PAR 3 3 6 6 1 overvoltage overcurrent protection PAR 3 3 6 6 2 save recall PAR 3 3 6 6 3 reset PAR 3 3 6 6 4 list PAR 3 3 6 6 5 and limit model PAR 3 3 6 6 6 Click CONFIGURE LAN to change LAN addresses or set up LAN passwords PAR 3 3 6 4 Click ID INST
79. e DC OUTPUT switch The status display reads CMAX 2 Rotate the CURRENT control to increase or decrease the DVM reading until the DVM read ing corresponds as close as possible to maximum rated current Calculate current as fol lows Amperes DVM reading Volts Shunt Resistance Ohms 4 3 4 3 3 4 3 4 4 4 Tap the DC OUTPUT switch to accept the value The status display reads C 0 Rotate the CURRENT control to increase or decrease the DVM reading until the DVM reading corre sponds to minimum positive or zero current Calculate current as follows Amperes DVM reading Volts Shunt Resistance Ohms 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 to but not less than the maximum rated current see Table 1 2 Calculate current as follows Amperes DVM reading Volts Shunt Resistance Ohms Tap the DC OUTPUT switch to accept the value the status display now reads OUTC At the ANALOG I O PORT J2 connect the DVM to CURR_RBACK and GND as shown in Figure 4 1 Rotate the CURRENT control to increase or decrease the output voltage until the DVM reads as close as possible to 10V Tap the DC OUTPUT switch to accept the value The status display reads EXT Tap the DC OUTPUT switch to proceed to External Calibration see PAR 4 3 3 or rotate either VOLT
80. e Inhibit signal acts as a true remote inhibit If Remote Inhibit is asserted the output will be disabled even if OUTPUT ON Switch is pressed To enable the output after Remote Inhibit has been asserted first withdraw Remote Inhibit then tap OUTPUT ON switch If OUTPUT ON switch is pressed while Remote Inhibit is asserted the command is ignored and rINu is flashed once in the status display DIGITAL CONTROL MODE For Digital Control mode the Remote Inhibit signal acts as an emergency shutdown Asserting Remote Inhibit overrides OUTPut ON commands and forces an OUTPut OFF state This is true even if AUTOmatic recovery from a source power or over temperature fault should return the output to a previous enabled state If Remote Inhibit is asserted the output will be disabled even if OUTPut ON command is sent To enable the output after Remote Inhibit has been asserted first withdraw Remote Inhibit then send OUTPut ON command If the OUTPut ON command is sent while Remote Inhibit is asserted the command will be ignored and rINH flashes in the status display every two seconds ANALOG CONTROL MODE If the output has previously been enabled asserting withdrawing Remote Inhibit allows the output to be enabled disabled remotely If the output is already off this signal has no effect however if Remote Inhibit is active and an attempt is made to turn the out put on the output will stay off and rINH will appear in the status display If Remote Inhibit
81. e firmware version This information cannot be changed directly by the user When the status display reads KLR the DC VOLTS display shows the model voltage rat ing e g 75 00 for KLR 75 32 and the DC AMPERES display shows the model current rating e g 32 00 for KLR 75 32 This information cannot be changed by the user If the status display reads RODC this indicates the unit is an R Option model that has RODC Rapid Output Discharge Circuit installed If the status display reads LAN this indicates the unit is an E Series model that has the RS 232 port replaced by an ethernet enabled LAN communication port When status display reads RTN tap DC OUTPUT switch to exit submenu and return to previous menu UTILITY FUNCTION The Utility Function provides additional system information or access to special functions These are described below 1 If the status display shows SET tap either the CURRENT or VOLTAGE controls to take the unit out of setpoint mode status display goes from SET to blank Using a thin tool e g a paper clip press the FUNCTION switch once then rotate either the VOLTAGE or CURRENT control in either direction until status display reads UTIL Tap DC OUTPUT switch once then rotate either the VOLTAGE or CURRENT control in either direction to select the function identified in the status display see below Tap the DC OUTPUT switch to enter the submenu RELY Relay Control see PAR 3 2 17 1 QkBT Quick B
82. either variable voltage PAR 3 4 2 or resistance PAR 3 4 1 OFF Selects Voltage factory default Allows retention of the last entered setpoint values for voltage and ON Save and recall previous set current in non volatile memory for recall at the next power up point values upon power up 3 sequence see PAR 3 2 10 3 OFF Power up set to 0 Volts and minimum current factory default 4 Reserved Do not use Allows locking of the front panel controls see PAR 3 2 2 1 ON Local controls locked 5 OFF Local controls enabled fac tory default 2 2 KLR 010715 ETAIL A F TANDA DEL LY LA ECTO ANAL T WIRE seego mocar 413 12 Es n LINK ACTIVITY INDICATOR IN FOR ETHERNET ACTIVITY LINE HOT l ETAIL SOTECTIVE EARTH FOR E SERIES MODELS ONLY NEUTRAL IEEE 4 gt GPIB PORT 24 PIN RECEPTACLE Eh gu s A T ECT STANDARD MODELS SEE DETAIL A s E SERIES MODELS SEE DETAIL FIGURE 2 2 KLR SERIES REAR PANEL SWITCH AND CONNECTORS KLR 010715 2 3 TABLE 2 3 IEEE 488 PORT CONNECTOR J4 PIN ASSIGNMENTS
83. ency and all current stabilized power supplies have a finite shunt impedance which decreases with frequency The method of interface between the power supply output and the load must therefore take into account not only the size with regard to minimum voltage drop but the configuration with regard to minimizing the impedance introduced by practical interconnection techniques wire bus bars etc The series inductance of the load wire must be as small as possible as compared to the source inductance of the power supply although the error sensing connection to the load compensates for the d c voltage drop in the 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 a constantly modulated or step programmed b has pri marily reactive characteristics or c where the dynamic output response of the power supply is critical to load performance LOAD CONNECTION GENERAL Load connections to the KLR power supply are achieved via the and DC OUTPUT termi nals located on the rear panel M and M outputs are also available at terminal blocks TB5 and TB1 respectively located on the panel for load error sense connections Configuration of local or remote sensing is facilitated by pre installed jumpers which configure the unit for local sensing as shown in Figure 2 2 NOTE REGARDLESS OF OUT
84. er and exit setpoint mode Setpoint mode can be entered with output enabled or disabled but output CAN NOT be enabled while setpoint mode is active Tap press and release either Voltage or Current knob once to enter setpoint mode status reads SET Rotate Voltage and Current knobs until desired values appear in VOLTS and AMPS displays pressing and holding control knob in while turning provides fine adjustment Tap either knob once to exit setpoint mode SET disappears see PAR 3 2 10 2 What happens when setpoint mode is exited If the output is enabled exiting setpoint causes output to jump to new setpoints If the output was disabled prior to or while in setpoint exiting setpoint stores the new settings in memory when output is enabled output jumps to programmed setpoints When setpoint is exited VOLTS and AMPS revert to actual output values as determined by the load How do I enter a Password Password is required to alter the unit configuration or calibrate the unit Status shows PASS password and Current Display shows 0000 Rotate Current knob to select a number from 0 9 Tap Current knob to advance to next digit Repeat until all four digits have been selected Tap DC OUTPUT to accept the number See Table 4 1 for default passwords How dol enter exit Function mode To enter a function press FUNCTION using a thin tool once so status reads LMT limit model see below rotate Voltage or Current knobs for ADDR set GPIB address PAR 3 2
85. for relay energized condition T TABLE 2 5 LAN PORT CONNECTOR J7 PIN ASSIGNMENTS E SERIES MODELS ONLY PIN SIGNAL NAME FUNCTION 1 TX Transmit 2 TX Transmit 3 NOT USED 4 NOT USED 5 NOT USED 6 NOT USED 7 RX Receive 8 RX Receive TABLE 2 6 CONTROL INPUT TERMINAL BLOCK ASSIGNMENTS TERMINAL FUNCTION M Positive output monitor connection TB5 see PAR 2 7 5 1 S Positive sense connection TB4 see PAR 2 7 5 1 CS Current Share bus TB3 see PAR 2 7 7 1 S Negative sense connection TB2 see PAR 2 7 5 1 M Negative output monitor connection TB1 see PAR 2 7 5 1 TABLE 2 7 ANALOG I O CONNECTOR J2 PIN ASSIGNMENTS PIN SIGNAL NAME FUNCTION 1 Cref Analog signal which programs output current from zero to full scale Voltage or resistance programming is selected via DIP switch position 2 See Table 2 2 Refer to PAR 3 4 2 for voltage programming and 3 4 1 for resistance programming 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 Refer to PAR 3 4 2 for voltage programming and 3 4 1 for resistance programming 4 RELAY COM Relay common MM 5 Reserved 6 VOLT RBACK Analog signal which represents output voltage from zero to full scale see PAR 3 4 7 CURR RBACK Analog signal which represents output current from zero to full scale see PAR 3 4 8 REM INH
86. g the required load current by the current rating of the applicable KLR model and rounding up to the next whole number when necessary KLR power supplies utilize active current sharing circuitry to distribute the load current equally among the paralleled units When operating KLR power supplies in any parallel configuration load sharing must be imple mented among the paralleled modules Kepco strongly recommends that parallel applications employ master slave control available on standard models only as described in PAR s 2 7 8 and 3 2 14 2 11 AND BETWEEN M AND S FOR REMOTE SENSING OPTIONAL USER INSTALLED 5043482 EE PAR 2 7 6 FOR DETAILS la n h SEE NOTE FOR 300V MODEL PE NeTE 1 SE 1UF CERAMIC CAPACITOR LOCKING DIODES ARE OPTIONAL US
87. hare signal corruption the power supplies should as nearly as possible emulate a single large power supply To this end the following rules apply a All error sense connections must terminate to the same physical point whether the feedback is configured as local or remote sensing For local error sensing select one power supply as output regulation point and leave the local error sense jumpers in place Remove the local error sense jumpers from all other units and use tightly twisted wire triplets to daisy chain the S CS and S terminals to the first power supply For remote error sensing the same procedure is followed as for local sensing except that the local error sense jumpers are removed from the first power supply as well and a tightly twisted wire pair is connected from the S and S terminals of the first power supply to the load regulation point Install the HF bypass network indicated in Figure 2 5 across the error sense termination points b The power supplies should be located as near to each other as possible preferably in verti cally adjacent stacked positions Power terminations must be bussed together using ade quately sized interconnecting conductors both between the paralleled outputs and from the power supply assembly to the load Current rating of the conductors must accommodate the total maximum current contribution based on the programmed current regulation points of all power supplies For the low voltage models
88. he LED blinks rapidly while attempting to locate a valid IP address If suc cessful LED stays on without blinking LED not lit indicates failure FUNCTION momentary switch Used to set user determined limits on voltage and current Limit Model PAR 3 2 9 view KLR config uration Firmware Version Model rating Options installed PAR 3 2 16 change GPIB address PAR 3 2 12 change RS 232 baud rate standard models only PAR 3 2 13 set up master slave operation standard models only PAR 3 2 14 set up LAN interface E Series models only PAR 3 2 15 and enter the Utility menu PAR 3 2 17 The utility menu is used to configure the internal relay PAR 3 2 17 1 configure quick boot PAR 3 2 17 2 configure Remote Inhibit high or low and determine how the unit responds to faults PAR 3 2 17 3 calibrate analog inputs PAR 3 2 17 4 and enter cal ibration PAR 4 3 NOTE Requires a thin tool e g end of paper clip to press switch 2 2 2 REAR PANEL CONNECTORS AND SWITCHES Refer to Figure 2 2 and Tables 2 2 through 2 7 TABLE 2 2 ANALOG I O SWITCH FUNCTIONS DIP SWITCH POSITION FUNCTION SETTINGS Allows analog programming commands for voltage to be provided ON Selects Resistance 1 by either variable voltage PAR 3 4 2 or resistance PAR 3 4 1 OFF Selects Voltage factory default Allows analog programming commands for current to be provided ON Selects Resistance 2 by
89. he parameters applicable to individual models Table 1 3 lists general specifica tions applicable to all models except where otherwise noted KLR 010715 TABLE 1 2 MODEL PARAMETERS TABLE 1 3 KLR SPECIFICATIONS Rated Minimum Rated Ripple and Efficienc Model number Voltage Programmable Current noise y 1 2230 Va c Range current Range p p KLR 20 1202 0 20V 1 5A 0 120A 100 mV 8796 KLR 40 6007 0 40V 0 8A 0 60A 80 mV 88 KLR 75 321 0 75V 0 4A 0 32A 80 mV 87 KLR 150 162 0 150V 0 2A 0 16A 100 mV 88 KLR 300 8 0 300V 0 1A 0 8A 150 mV 89 1 Bandwidth 20MHz low frequency ripple may be higher at loads less than 30 Watis 2 Specifications listed apply to both standard and E Series models SPECIFICATION RATING DESCRIPTION CONDITION COMMENT INPUT CHARACTERISTICS a c voltage nominal 200 240 Va c Single Phase range 180 265 Va c Wide Range contact factory for opera tion to 265V a c Frequency nominal range 50 60 Hz maximum 45 440 Hz Increased Leakage above 66 Hz Power Factor typical 0 99 Meets EN 61000 3 2 Maximum Input Current 230 Va c 12A rms Rated load 2400W Inrush Current 265 Va c 40A Maximum instantaneous peak Input Fusing Circuit Breaker 2 line Low a c Protection typical 175V a c Self protected Rated load for autorecovery see PAR 3 2 17 3 2 Withstand Voltage Input Chassis 2121V d c all models 25 65 RH Output Chassis 1250V
90. ick the Search Again button LAUNCH WEB INTERFACE E SERIES MODELS ONLY After running the PSfind utility and selecting the desired unit see PAR 3 3 6 2 click the Launch Webpage button to open the KLR Instrument HOME PAGE UNIT DESCRIPTION in your default browser see Figure 3 4 You can also launch the web page in any browser by entering the IP address as the URL NOTE If source power to the KLR is removed or lost while a browser window is open commu nication with the KLR can not be restored until the present browser window is closed and a new window is opened Upon initial display of the web page it is good practice to click the browser Refresh Reload but ton once to ensure that the power supply information displayed is up to date and not prior infor mation recalled from the browser cache Although most current browsers will work Kepco recommends the following as fully supported IE 5 5 and higher Netscape 6 and higher and Firefox 1 0 and higher Popup blocking must be disabled and Javascript must be enabled for proper operation If popup blocking is enabled it may prevent viewing of the help screens The KLR Instrument Home page identifies the unit which has been accessed including Manu facturer Instrument Description Serial Number Calibration Date Hostname MAC Address and TCP IP Address Click the HELP box at the left of the screen for detailed explanations of each These parameters can not be changed by the user Fau
91. igit LED display that shows current settings display a Shows actual output current PAR 3 2 10 b Shows current set point or overcurrent limit when function selected PAR 3 2 10 2 c Shows GPIB address PAR 3 2 12 baud rate PAR 3 2 13 d Shows unit password PAR 3 2 9 and PAR 4 3 CURRENT Multifunction rotary encoder with momentary contact pushbutton switch Rotate to set output current control PAR 3 2 10 and overcurrent limit PAR 3 2 11 Also used to enter SET mode of current program momentary switch ming PAR 3 2 10 2 change GPIB address PAR 3 2 12 change RS 232 baud rate PAR 3 2 13 and enter calibration password and perform calibration PAR 4 3 DC OUTPUT Green LED lights when DC output is enabled LED is off when output is disabled indicator DC OUTPUT Enables or disables the DC Output When output is disabled current and voltage are programmed to on off switch minimal value and zero respectively PAR 3 2 5 Also used to accept front panel inputs PROTECT momentary switch Used to set overvoltage and overcurrent PAR 3 2 11 protection limits NOTE Requires a thin tool e g end of paper clip to press switch LAN Indicator E Series models only Green LED indicates when LAN interface is installed and valid IP address found Can be intentionally blinked using the web based interface to identify which unit is being accessed in a multi unit environ ment During initialization t
92. irable increase in output noise to disruption of power supply and or load operation The only way to avoid ground loops is to ensure that the entire output load circuit is fully isolated from ground and only then establish a single point along the output load circuit as the single wire ground point 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 empirical testing If there is a choice in selecting either the positive or negative output of the power supply for the d c ground point both sides should be tried and preference given to the ground point producing the least noise For single isolated loads the d c ground point is often best located directly at one of the output terminals of the power supply when remote error sens ing is employed d c ground may be established at the point of sense lead attachment In the specific case of an internally grounded load the d c ground point is automatically established at the load The power supply output terminals located on the rear panel for KLR Power Supplies are d c isolated floating from the chassis in order to permit the user maximum flexibility in selecting the best single point ground location Output ripple specifications as measured at the output are equally valid for either side grounded Care must be taken in measuring the ripple and noise at the p
93. is withdrawn the output will go to the levels programmed on vref and CreE without warning KLR010715 3 2 7 3 2 8 3 2 9 KLR010715 CHECKING VOLTAGE CURRENT SETPOINTS CAUTION BEFORE ENABLING THE OUTPUT ALWAYS CHECK THE SETPOINTS TO AVOID POSSIBLE DAMAGE TO THE LOAD Check the voltage and current set points by tapping either the VOLTAGE or CURRENT control The status display reads SET and the DC VOLTS and DC AMPERES displays show the stored setpoints To accept the displayed value tap the associated adjustment control again To change the value rotate the control see PAR 3 2 4 to set coarse fine preference then tap the adjustment control again to accept the new setting If you decide not to change the value after rotating the control the previous setpoint value will be restored after about 20 seconds of inactivity then tap either adjustment control to accept If a fault has been configured for AUTO recovery the status display flashes gt AUTO for one second upon leaving Setpoint mode see PAR 3 2 17 3 2 PASSWORD PROTECTED FUNCTIONS Certain functions such as system configuration and calibration can only be changed from the front panel after entering the unit password Refer to PAR 4 to change the password Table 4 1 shows the factory default password for each model 1 The status display shows PASS password and the display shows 0000 with the left most character blinking Rotate CURRENT control to select a number f
94. is in constant voltage mode CV indicator lit the DC VOLTS display shows the actual output voltage as the VOLTAGE control is rotated Similarly if the unit is in constant current mode CC indicator lit the DC AMPERES display shows the actual output cur rent as the CURRENT control is rotated NOTE If the unit is in CV mode rotating the CURRENT control will affect the current limit even though the DC AMPERES display does not change since it is showing actual output current Similarly rotating the VOLTAGE control while in CC mode affects the voltage limit To change the limits to a precise value refer to PAR 3 2 10 2 Setpoint Adjust ment KLR010715 3 2 10 2 3 2 10 3 3 2 11 KLR010715 Voltage and current settings are not allowed to exceed either a the limit model setting or b 83 396 of the protection value Attempts to set voltage or current beyond these limits will not be accepted The status display shows either gt MAX for limit model limits gt OVP for voltage protec tion or gt OCP for current protection to indicate which limit is being exceeded SETPOINT ADJUSTMENT Tap either the VOLTAGE or CURRENT control to initiate setpoint adjustment status display reads SET The previous setpoint is visible on the corresponding DC VOLTS or DC AMPERES display 1 Rotate the corresponding control to change the setpoint as viewed on the corresponding LED display If you decide not to change the setting after rotating the control
95. l status reads PROT VOLTS and AMPS displays show the protection limits to change limits while continuing to hold PROTECT in adjust OVP and OCP limits using the Voltage and Current knobs When PROTECT released values showing in VOLTS and AMPS displays are the new protection limits REMOTE ANALOG OPERATING MODE INSTRUCTIONS How do I enable analog operating mode Connect ANALOG CTRL pin 12 to GROUND pin 9 11 13 or 15 of analog port prior to power up to enable remote analog programming for that session Remote analog control is indicated by aREM in status display The status of ANALOG CTRL is sensed at power up only Enabling analog operating mode disables the local operating controls on the front panel see PAR 3 4 How do I enable or disable the output Connect REM INH pin 8 to GROUND pin 9 11 13 or 15 of analog port to disable power supply output open the connection to enable the output see PAR 3 2 6 The DC OUTPUT control on the front panel remains active in remote analog programming mode REM INH can be configured as active for either TTL high or low see PAR 3 2 17 3 1 How do adjust voltage and current setpoints using an external voltage source Set analog I O DIP switch positions 1 and 2 up factory default position to use external voltage control of voltage and current respectively Full scale programming voltage is factory set at 10V to alter full scale value see PAR 3 2 17 4 Apply a 0 10V signal from Vref pin
96. libration VOLTAGE CALIBRATION LOCAL During voltage calibration the voltage voltage readback and remote analog voltage readback are calibrated 1 Minimum voltage is first To start tap the DC OUTPUT switch while v appears in the status display the status display then reads v 0 Monitor DVM and rotate the VOLTAGE control to increase or decrease the output voltage until the DVM reads minimum positive or zero Volts Tap the DC OUTPUT switch to accept the value The status display then reads VMAX Moni tor DVM and rotate the VOLTAGE control to increase or decrease the output voltage until the DVM reads as close as possible to but not less than the rated model voltage see Table 1 2 Tap the DC OUTPUT switch to accept the value the status display now reads OUTV At the ANALOG IO PORT J2 connect the DVM to VOLT_RBACK and GND as shown in Figure 4 1 Rotate the VOLTAGE control to increase or decrease the output voltage until the DVM reads as close as possible to 10V Tap the DC OUTPUT switch to accept the value The status display reads C Tap the DC OUTPUT switch to proceed to Current Calibration see PAR 4 3 2 or rotate either VOLT AGE or CURRENT control to advance to next choice CURRENT CALIBRATION LOCAL During current calibration the current current readback and analog current readback are cali brated 1 The status display reads LOAD When the shunt and DVM are connected per PAR 4 3 step 4 tap th
97. ls oett meti eren e RE Et sad und EE 2 1 2 2 1 FrontBaneliGontrelsiand lmdGS0OS KT 2 1 2 2 2 Rear Panel Connectors and Switches enne nnne nenne nnne nnne nnne 2 2 2 3 SourceiPower Requirements ree e RERO Rr et e eme keka se Ki K R due ka B ay sa ERE SEN EA Daka nl RRA W 2 6 2 4 GOO 2 6 2 5 relirminaryiGperationalGhe6KEEAATETE ie ERR UI REINO n aeaa Ar E aanas 2 6 2 6 aero CET 2 7 2 6 1 Rack Mounting 4 5 2 n iH pe Fur CEH a Sara d are dep tee ie DELI BAUR Lo Lp RR ote 2 7 2 7 Wiring Inistu tiores sedo op berti bu D Eod p RD Ee ir Esto PEE Pu a Ent bue it tes te tea eats 2 7 2 7 1 Safety Grounding e E E 2 8 2 7 2 Source olii ke dada a Va ekl 2 8 2 7 2 1 lV i al Dalal RD DD rr ae reek EE 2 8 2 7 2 2 GOrnnectiolis cn ot net db MA Ne AR n RI KERA dee ak Va BIRI ka EE iuueni 2 8 2 7 3 DC Output Grounding qil Hil sela So a ae SL e cetur tute WE ut 2 9 2 7 4 Power Supply Load Interfaces riie osinn anlne neyan dileki danani ak de x l EE nnne a k liya EEAO ada kd e di as xel kun 2 10 2 7 5 I oad Gonnection z General cu guten enoa Seri k na kesa Ha erai qu edet ea teda ve Be Kek enituit 2 10 2 7 5 1 Local Sensing Remote Sensing Select sese eene nre 2 10 2 7 6 Senles Operation De rrrrDrDD g isa e ww 2 11 2 7 7 Parallel Operation x re nat ee kile k ye ete eren A o Ne KE eite te repe t Van taal 2 1
98. lt alerts are not available from this page Clicking the ID INSTRUMENT box at the left of the screen causes the physical front panel LAN indicator on the selected unit to blink allowing visual confirmation as to which unit is selected This is especially important if more than one unit is found on the LAN KLR010715 AN ISO 9001 COMPANY 2 KEPCO KEPCO WEB SITE UN dann SUPPORT THE d SUPPLIER SIN gt INSTRUMENT DESCRIPTION OPERATE INSTRUMENT MANUFACTURER KEPCO CONFIGURE INSTRUMENT KLR 20 120 INSTRUMENT DESCRIPTION KLR 2400 Watt Series 0 SERIAL NUMBER A001776 CONFIGURE CALIBRATION DATE MM DD YYYY LAN HOSTNAME 192 168 1 198 ID MAC ADDRESS 00 03 F4 01 F2 09 INSTRUMENT TCPAP ADDRESS 192 168 1 198 INSTRUMENT ADDRESS STRING TCPIP 192 168 1 198 INSTR HELP KEPCO INC 131 38 Sanford Avenue Flushing NY 11352 USA Tel 718 461 7000 Fax 718 767 1102 www kepcopower com email hq kepcopower com Copyright 2012 Kepco Inc All rights reserved FIGURE 3 4 WEB INTERFACE HOME PAGE UNIT DESCRIPTION 3 3 6 4 INSTRUMENT CONFIGURATION USING WEB INTERFACE E SERIES MODELS ONLY Click on CONFIGURE INSTRUMENT at the left to view the INSTRUMENT Configuration page Figure 3 5 The parameters that can be configured from this page are arranged in two groups The top group requires the unit password see PAR 3 2 8 to change the parameter and includes Whether the polarity of the Remo
99. lt relay RELAY NO RELAY NC RELAY COM and external trigger EXT TRG remain active for all operating modes 3 4 1 PROGRAMMING WITH EXTERNAL RESISTANCE Figure 3 14 is a simplified diagrams of the KLR showing the switch configuration and external connections required for analog programming using an external resistance 1 Limit model PAR 3 2 9 and Overvoltage and Overcurrent settings PAR 3 4 3 must be established via either local programming or digital remote programming prior to initiating Analog Remote programming 2 Turn off power and configure the Analog I O DIP switch Figure 2 2 as follows SW1 ON Program output voltage via resistance SW2 ON Program output current via resistance SWS3 either OFF or ON disabled when in remote analog programming mode see Table 2 2 SWA Reserved Do not use SW5 Either OFF Local controls enabled or ON Local controls locked 3 Configure Analog I O Port J2 Figure 2 2 by referring to Table 2 7 and Figure 3 14 ground ing J1 pin 12 enables analog programming NOTES FIGURE 3 14 ANALOG PROGRAMMING OF OUTPUT VOLTAGE OR CURRENT USING RESISTANCE 3 36 KLR010715 3 4 2 KLR010715 With the power supply configured as shown in Figure 3 14 and assuming the load causes the power supply to operate in voltage mode varying external resistor R2 from 0 to 10K causes the output voltage of the power supply to vary linearly from O to full
100. mp play Demo sesseseeeeeeeeeneneeeneennenennen nennen nnne trennen trennen nnne 4 10 4 5 Changing the Calibration Password esssssseseeeeeennene nennen nennen neret nre A KA KAK A Ak KAK nenne 4 10 4 6 Restoring Prior Calibration Val gs 3 e e RE etre Ra i 4 11 KLR INSTALLATION OPERATION SUMMARY KLR USR 020498 iii FIGURE 1 1 1 2 2 1 2 2 2 3 2 4 2 5 8 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 10 3 11 3 12 3 13 3 14 3 15 4 1 4 2 4 3 4 4 4 5 LIST OF FIGURES TITLE PAGE KLR Seri s Power Supply ia As Eli ik red ly ci karay e eere seinen ee eco dines oh IL enda seen RE E CEWRE Eu WERE E eue Du ka se vi KLR Series Power Supply Mechanical Outline Drawing 1 7 KLR Series Front Panel Controls and Indicators ee 2 1 KLR Series Rear Panel Switch and Connectors i 2 3 Remote Se nsIng Rn EE EE EE ERR RS 2 11 Series Connection using Remote Sensing sse nennen KAK KA KAR A KA A KRA 2 12 Parallel Connections Using Remote Sensind 2 12 Function Switch Menu Structure E EuE EEE Emek kk kk k kek kk nennen nennen A AA KAK KA A KA r KAK AA HK A KA nnns 3 5 Fault Recovery Configuration Display 3 21 PS Find Soreen snae ene ed ee ea e oec p e eda ee n a Nel AW 3 26 We
101. n restarts with the new settings press FUNCTION to abort without changing the settings NOTE Until both units are configured properly the displays will cycle 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 type of connection SERI series or PARA parallel KLR010715 3 2 14 3 OPERATING THE MASTER SLAVE CONFIGURATION STANDARD MODELS ONLY NOTE When starting a master slave pair the slave unit must be energized before the master unit Once the pair is energized the master unit searches for the corresponding slave unit Until com munication is established the status displays of the two units will cycle as follows status display will flash 241 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 type of connection SERI series or PARA parallel When the slave is found the status display of the slave reads SLVE and the DC VOLTS and DC AMPERES displays on the slave go blank For the master slave combination to work properly the number of slave units specified in the master PAR 3 2 14 2 step 4 must be found When the slave has been found the master proceeds with the normal turn on sequence and the unit proceeds to SET mode The master front panel readouts show the total val
102. nd load must be observed by the user These rules are described in detail in the following paragraphs 2 7 2 7 1 2 7 2 2 7 2 1 2 7 2 2 2 8 SAFETY GROUNDING Local national and international safety rules dictate the earth grounding of the metal cover and case of any instrument connected to the a c power source when such grounding is an intrinsic part of the safety aspect of the instrument KLR is provided with a three terminal IEC appliance coupler for connection of the mains supply Source one terminal of which is dedicated for the protective earthing conductor no other ground or earth connection is required although the chassis may be separately connected to earth ground for noise or other performance considerations frame grounding The instructions below suggest wiring methods which comply with these safety requirements however in the event that the specific installation for the power system is different from the rec ommended wiring it is the customer s responsibility to ensure that all applicable electric codes for safety grounding requirements are met SOURCE POWER CURRENT RATING All switchmode power supplies including the KLR series present a constant power characteris tic to the input power source Consequently the power supply draws maximum input current for a given load power at low input voltage and proportionately less as source voltage is raised according to the formula Input Current Output Power
103. nd output enabled disabled that existed when the fault was detected For this reason AUTOmatic recovery mode is best suited to applications where it is anticipated that the output is always enabled For safety reasons when servicing circuits powered by the output always switch the KLR front panel circuit breaker OFF or activate Remote Inhibit see PAR 3 2 6 If more than one fault occurs the fault with the lowest risk level determines the unit s response however multiple faults will cause the output to be off upon recovery even if set to AUTO The factory default configuration is PROTECT for all faults Note that some faults have limited options The recovery options for each fault are presented in Table 3 2 TABLE 3 2 FAULT RECOVERY CONFIGURATION 3 20 Auto Recovery Options Fault PROTECT SAFE AUTO OVP Overvoltage Protection fault YES YES OCP Overcurrent Protection fault YES YES OLF Output Lead Fault YES YES TEMP Temperature fault YES YES YES PWR Loss of source power fault YES YES YES FAN Fan failure fault YES not configurable NOTE When using a master slave configuration all faults are set to PROTECT and power to both units must be cycled to clear a fault KLR010715 3 2 17 4 KLR010715 1 Enter UTIL menu see PAR 3 2 17 steps 1 through 3 and rotate either VOLTAGE or CUR RENT control until status display reads syst then tap DC OUTPUT switch Rotate either
104. ned for stationary installation with mains power applied via a detachable power supply cord or via direct wiring to the source power terminal block This power supply is considered a Class 1 earthed product It is intended for use as part of equip ment meant for test measurement and laboratory use and is designed to operate from single phase three wire power systems This equipment must be installed within a suitably wired equipment rack utilizing a three wire grounded mains connection See wiring section of this manual for complete electrical wiring instructions EN 61010 1 2001 CI 6 10 1 This power supply has secondary output circuits that are considered hazardous and which exceed 240 VA at a potential of 2V or more The output wiring terminals of this power supply has not been evaluated for field wiring and therefore must be properly configured by the end product manufacturer prior to use This power supply employs a supplementary circuit protector in the form of a circuit breaker mounted on the front panel This circuit breaker protects the power supply itself from damage in the event of a fault condition For complete circuit protection of the end product as well as the building wiring it is required that a primary circuit protection device be fitted to the branch circuit wiring EN 61010 1 2001 CI 9 5 Hazardous voltages are present within this power supply during normal operation All operator adjust ments to the produc
105. nother device or the host computer itself is subsequently powered on While this is a normal occurrence that typically resolves itself within a few seconds LAN communication is interrupted during that time Should this occur first activate all devices connected to the hub and wait until the KLR LAN indicator is on steadily for several seconds before attempting to communi cate with the KLR FINDING KEPCO POWER SUPPLIES ON THE LAN E SERIES MODELS ONLY The PSfind utility can be downloaded at www kepcopower com drivers drivers dl3 htm klr This utility finds all operational Kepco power supplies connected to the LAN and then shows the MAC and IP addresses of the models found To run the utility from your PC download the psfind zip file to your computer Extract psfind exe from the zip file to a location of your choice then doubleclick psfind exe to run the application A separate window opens as shown on Fig ure 3 3 3 25 3 3 6 3 3 26 m NetBurner IPSetup V2 0 Select a Unit K SB70 00 03 F 4 05 53 65 DHCP d at 132 168 2 3 running KLP LXI 1 4 Close Launch Webpage FIGURE 3 3 PS FIND SCREEN Once the search is completed all found units are displayed in the Select a Unit window the MAC address appears in parentheses If you do not see your device in the Select a Unit win dow or if the icon to the left of the selected instrument is red not green make sure it is turned on and connected to the network then cl
106. ns of power supply pairs can be used to allow changes to output volt age current of one supply master to affect the output of the other slave Both units of a mas ter slave configuration must be identical models Master slave control is implemented using the RS 232 ports After connecting the series or parallel pair see PAR 2 7 6 or 2 7 7 respectively use a null modem cable minimum length 0 5 foot DB9F DB9F to connect the RS 232 ports of both power supplies Then refer to PAR 3 2 14 to complete the setup of each power supply in the master slave configuration If GPIB control of the master slave pair is desired the user must connect to the master unit using an in line style connector as the commonly used stackable connector will interfere phys ically with the RS 232 connector above it Contact Kepco Sales Engineering for additional guid ance ANALOG I O CONNECTIONS The Analog I O Port connector located on the rear panel of the KLR power supply see Figure 2 2 provides access for all analog programming inputs and status signal outputs In addition an external trigger input is available for use with SCPI TRG and TRIG commands Refer to Table 2 7 for analog I O programming signal pin assignments and descriptions These signals must be protected from radiated and conducted noise as well as from physical contact with non valid driving sources The following subsections address specific programming signal applications in gener
107. nstrument Driver ee 3 24 3 3 5 Remote Programming Using the VXI plug amp play Instrument Driver u keke 3 24 3 3 6 Remote Programming Using the Web Interface E series Models Onlyl 3 24 3 3 6 1 Troubleshooting LAN Communication Problems enne 3 25 3 3 6 2 Finding Kepco Power Supplies on the LAN E Series Models Only esee 3 25 3 3 6 3 Launch Web Interface E Series Models Only sseeeeeneneeneen nee 3 26 3 3 6 4 Instrument Configuration Using Web Interface E Series Models Oniyi 3 27 3 3 6 5 LAN Configuration Using Web Interface E Series Models Only esee 3 28 3 3 6 6 Operating The Unit Using Web Interface E Series Models Only 3 30 ii KLR USR 010715 TABLE OF CONTENTS SECTION PAGE 3 3 6 6 1 Changing the Output E Series Models Only 3 31 3 3 6 6 2 Changing Protection E Series Models Only 3 31 3 3 6 6 3 Using Save and Recall E Series Models Only 3 31 3 3 6 6 4 Resetting the Unit RST E Series Models Only E EEE EEE kk 3 32 3 3 6 6 5 Using a List User Programmed Sequences E Series Models Onl yi
108. ntrol momentary switch FIGURE 2 1 KLR SERIES FRONT PANEL CONTROLS AND INDICATORS TABLE 2 1 CONTROLS AND INDICATORS CONTROL OR INDICATOR FUNCTION POWER ON OFF Turns the power supply on or off Applies input power to power supply internal circuits Circuit breaker Circuit Breaker provides input overload protection VOLTAGE Multifunction rotary encoder with momentary contact pushbutton switch Rotate to set output voltage control switch PAR 3 2 10 and overvoltage limit PAR 3 2 11 Also used to enter SET mode of voltage program ming PAR 3 2 10 2 change GPIB address PAR 3 2 12 change RS 232 baud rate PAR 3 2 13 and enter calibration password and perform calibration PAR 4 3 DC VOLTS Four digit LED display that shows voltage settings display a Shows actual output voltage default b Shows voltage set point PAR 3 2 10 2 or overvoltage limit when function selected PAR 3 2 11 CV Green LED lights to indicate power supply is operating in constant voltage mode see PAR 3 2 10 indicator Status Displays active function or blinks for error messages Normally blank VOLTAGE and CURRENT 4 character display LEDs display actual voltage and current CC indicator Amber LED lights to indicate power supply is operating in constant current mode see PAR 3 2 10 KLR 010715 2 1 TABLE 2 1 CONTROLS AND INDICATORS CONTINUED CONTROL OR INDICATOR FUNCTION DC AMPERES Four d
109. of the relay rotate either VOLTAGE or CURRENT control until the desired relay state is displayed then tap the DC OUTPUT switch to immediately set the relay to the selected state and return to the RELY menu C To select LIST tap the DC OUTPUT switch to save selection unit returns to the RELY menu 3 Rotate either VOLTAGE or CURRENT control until status display shows RTN and press DC OUTPUT switch to exit UTIL menu then rotate either VOLTAGE or CURRENT control until status display shows EXIT and press DC OUTPUT switch to exit FUNCTION control NOTE If a SYSTem SECurity IMMediate command is issued the above relay control settings are reset to the factory default FLT NORM 3 2 17 2 QUICK BOOT Enter UTIL menu see PAR 3 2 17 steps 1 through 3 and rotate either VOLTAGE or CUR RENT control until status display reads QkBT Quick Boot If Quick boot is ON then the next time the unit is powered up it will go directly to setpoint mode status display reads SET see PAR 3 2 10 without displaying MODL LMT and PROT settings The DC VOLTS display indicates whether quick boot is ON or OFF 1 Tap the DC OUTPUT switch to change the setting The DC VOLTS display begins to blink 3 18 KLR010715 3 2 17 3 Rotate either VOLTAGE or CURRENT control until the desired quick boot state is displayed then tap the DC OUTPUT switch to save the setting the blinking stops To exit rotate either VOLTAGE or CURRENT control until the sta
110. off the last settings are saved and automatically retrieved at next power up as the starting setpoints Note that this func tion applies to setpoint entries only PAR 3 2 10 2 output changes entered in real time mode PAR 3 2 10 1 are not saved To disable this function turn the unit off and set Analog I O Switch 3 to the OFF up position at next power up the stored value buffer is cleared and set points will default to zero volts and minimum current NOTE Ifthe limit model for the power supply is altered the last settings are reset to zero volts and minimum current Last output state ON or OFF is not retained upon restart the unit defaults to setpoint mode See AUTOmatic fault recovery mode PAR 3 2 17 3 2 VIEWING CHANGING OVERVOLTAGE OR OVERCURRENT PROTECTION VALUES Overvoltage and Overcurrent protection values can be individually programmed The range for overvoltage and overcurrent values are 0 2 to 1 2 x Eomax and 0 72 to 1 2 x Iomax If the out put voltage current exceeds the overvoltage overcurrent protection value the protection circuit latches the output off flashes an overvoltage OVP or overcurrent OCP protection error mes sage on the status display and sets a status bit that can be retrieved through the RS 232 GPIB or LAN port The unit must be cycled on and off to restore the output If the internal relay is pro 3 9 3 2 12 3 2 13 3 10 grammed to FAULT mode see PAR 3 2 17 1 the N O and N C contac
111. on adds the steps to the list as the firmware calculates the intermediate volt age values and dwell times required to produce the desired ramp Ramps with many total steps may take a few seconds to process the percentage complete is indicated below the Create Ramp button 3 33 3 3 6 6 6 3 34 SAVE OUTPUT PROTECTION RECALL RESET LIST Create Ramo c FIGURE 3 12 ADDING MULTIPLE STEPS RAMPS TO LIST Execute the List Steps may be added to a list using Add to List Current Ramp or Voltage Ramp buttons however the total number of steps can not exceed 100 To execute the list enter the number of times the list is to be executed in the Loops box 1 to 65536 0 is continuous looping set the output on click the On Off button if necessary and click the Execute List but ton While the list is running the title of the Execute List button changes to Stop Execution After the completion of the specified number of LIST cycles the output stabilizes at the condi tions in the last LIST step Stop the List If the Stop Execution button is clicked to stop the list the output stays on with the voltage and current at the list values prior to the stop command and the Stop Execution button reverts to Execute List If the Execute List button is clicked again the list restarts from the beginning If the list is stopped by clicking the RST button the output turns off and Output setpoints are reset to OV minimum current except
112. on of the KLR VXI PLUG amp PLAY driver may be used both to archive and restore calibration files The driver is available for download at http www kepcopower com drivers index htm Consult the KLR Developer s Guide for instructions on implementing these functions 4 11 4 12 Blank KLR INSTALLATION OPERATION SUMMARY This summary can be printed as a handy overview to common tasks covered in the KLR User Manual and includes hyperlinked refer ences to appropriate paragraphs Tables and Figures and Kepco website pages for more details INITIAL SETUP INSTRUCTIONS 1 Location Do not obstruct front and rear panel vents additional clearance at side top and bottom vents is recommended 2 Connect power supply output to load Voltage drop must be less than 0 25V per conductor see Nomograph1 at http www kepcopower com nomomax htm Local error sense operation is factory default for remote error sense operation see PAR 2 7 5 1 For parallel or series operation of two or more power supplies see PAR 2 7 7 and 2 7 6 respectively 3 Connect remote programming cables if applicable Only one remote programming input may be active at a time Remote analog programming Connect programming cable between programming source and J2 see Table 2 7 and PAR 2 7 9 Digital programming using GPIB Connect programming cable between host computer and J4 see Table 2 3 and PAR 2 8 1 Digital programming using RS 232 standard models only
113. onds while DC VOLTS and DC AMPERES dis plays show the maximum voltage and current capability of the unit Status display flashes LAN for 2 seconds if unit is an E Series model e Status display flashes RODC for 2 seconds if unit has the Rapid Output Discharge Cir cuit option installed Status display flashes LMT for 2 seconds while DC VOLTS and DC AMPERES dis plays show the maximum voltage and current allowed for a previously programmed Limit model To reprogram the maximum allowable voltage and or current refer to PAR 3 2 9 to define a Limit model KLR010715 3 1 NOTE Status display flashes PROT for 2 seconds while DC VOLTS and DC AMPERES dis plays show previously stored OVP and OCP trigger levels NOTE to reprogram OVP or OCP refer to PAR 3 2 11 To eliminate the display of model limit model and protection levels on power up refer to PAR 3 2 17 2 for quick boot For E Series models the LAN indicator blinks rapidly during initialization If an IP address is found it stays on without blinking If an IP address is not found the LAN indicator stays off If any fault is configured for AUTO recovery see PAR 3 2 17 3 2 the status display flashes AUTO for one second If remote inhibit is active see PAR 3 2 6 upon power up the status display flashes rINH for one second If an error occurs an error code is displayed in the status display see Table 3 1 TABLE 3 1 POWER UP BUILT IN TEST ERROR CODES
114. oot see PAR 3 2 17 2 ADJ Coarse Fine Adjustment Preference see PAR 3 2 4 SYST System Configuration see PAR 3 2 17 3 KLR010715 ANRB Analog Output Full Scale calibration voltages see PAR 3 2 17 4 ANPR Analog Input Full Scale calibration voltages see PAR 3 2 17 5 LBT Standard models only Loop Back Test used to isolate RS 232 communication problems see KLR Developer s Guide e CAL Display last calibration date and or begin Calibration see PAR 3 2 17 6 RTN Exit any submenu and return to previous menu 3 2 17 1 INTERNAL RELAY CONTROL The internal relay contacts available at the Analog I O connector can be configured from the front panel to operate in either Fault Manual or List mode If FAULT mode the factory default is selected the relay energizes automatically upon detection of a user selected condition The default selection is NORM normal triggering the relay for any system fault see PAR 1 5 9 Two additional selections are available a V C adding a fault indication when the unit transi tions from Constant Voltage CV to Constant Current CC mode and b c v adding a fault indication when the unit transitions from CC to CV mode If V gt C or C V is selected the amount of time the unit must be in CC or CV mode before the relay energizes may be pro grammed from the front panel see step 2a or via the CONFIGURE INSTRUMENT web page E series models only 1 Enter UTIL menu
115. ormal rotation produces a fine adjustment and pressing the control in while rotating produces a coarse adjustment 1 If the status display shows SET tap either the CURRENT or VOLTAGE controls to take the unit out of setpoint mode status display goes from SET to blank 2 Using a thin tool e g a paper clip press the FUNCTION switch once then rotate either the VOLTAGE or CURRENT control until the status display reads UTIL 3 Tap DC OUTPUT switch then rotate either the VOLTAGE or CURRENT control until status display reads ADJ The DC VOLTS display shows C F when normal rotation produces coarse adjustment F C when normal rotation produces fine adjustment KLR010715 3 2 5 KLR010715 FUNCTION LMT PAR 3 2 9 CNFG PAR 3 2 16 VERS I MODL Options RTN ADDR PAR 3 2 12 BAUD PAR 3 2 13 M S PAR 3 2 14 SERI 1OF2 2OF2 PARA 1OF2 2OF2 LAN PAR 3 2 15 LRST DHCP AUTO MAC1 MAC2 MAC3 IP1 IP2 MSK1 MSK2 GTE1 GTE2 DNS1 DNS2 L_RTN L UTIL PAR 3 2 17 RELY PAR 3 2 17 1 FLT NORM V gt C C gt V EXIT RTN MAN LIST RTN QkBt PAR 3 2 17 2 L ADJ PAR 3 2 4 L SYST PAR 3 2 17 3 rINH PASSWORD REQUIRED RCOV OVP E SERIES MODELS ONLY OCP STANDARD MODELS ONLY RTN OLF L ANRB PAR 3 2
116. ower supply For current calibration after disconnecting all loads an appropriate shunt resistor will be connected across the output terminals and the digital voltmeter will be connected across the sense terminals of the shunt resistor 1 Turn off power supply and disconnect load from output bus bar at the rear of the unit 2 Verify that power supply is configured for local error sensing See PAR 2 7 5 1 3 For voltage calibration connect DVM to M S and M S of terminal block at the rear of power supply 4 For current calibration connect an appropriate shunt resistor see PAR 4 2 across the output terminals and connect DVM to shunt resistor terminals 5 Configure the mating I O connector provided with unit to access the input programming sig nals Vref and Cref and output readback signals VOLT RBACK and CURR RBACK as shown in Figure 4 1 Note that the wires to Vref and Cref should be tightly twisted with the corresponding GND wire and kept as short as possible Then connect the I O mating con nector to the Analog I O port of the power supply 6 Turn on power supply and after the status display shows SET start VXI plug amp play demo pro gram 7 Click the Calibrate Access button on the VXI plug amp play demo main panel the button label changes to Calibrate Close and the Calibration Window Figure 4 2 opens with all buttons disabled grayed out and PASSWORD appears in the text box near the top of the window The main
117. ower supply measuring devices which are a c line operated can often introduce additional ripple and noise into the circuit There is unfortunately no best method for interconnecting the load and power supply Individ ual applications location and nature of the load require careful analysis in each case It is hoped that the preceding paragraphs will be of some assistance in most cases For help in special applications or difficult problems consult directly with Kepco s Application Engineering Depart ment 2 9 2 7 4 2 7 5 2 7 5 1 2 10 POWER SUPPLY LOAD INTERFACE The general function of a voltage or current stabilized power supply is to deliver the rated output quantities to the connected load The load may have any conceivable characteristic it may be fixed or variable it may have predominantly resistive capacitive or inductive parameters it may be located very close to the power supply output terminals or it may be a considerable distance away The perfect interface between a power supply and its load would mean that the specified performance at the output terminals would be transferred without impairment to any load regardless of electrical characteristics or proximity to each other The stabilized d c power supply is definitely not an ideal voltage or current source and practical interfaces definitely fall short of the ideal All voltage stabilized power supplies have a finite source impedance which increases with frequ
118. own except that IP MASK GATE and DNS addresses are retrieved from the LAN or router and may differ from values shown If the LAN is inactive i e LAN cable unplugged router inactive etc DHCP and AUTOIP are disabled and IP MASK GATE and DNS addresses are all set to 0 0 0 0 If either the AUTOIP or DHCP function is enabled by the user when the LAN inactive it will be disabled if source power is cycled 3 23 3 3 2 3 3 3 3 3 4 3 3 5 3 3 6 3 24 ADDITIONAL FUNCTIONS NOT AVAILABLE FROM THE FRONT PANEL Some additional functions are described in the KLR Developer s Guide that are not available from the front panel Storage of User programmed Active Settings 40 memory locations are available to store and recall active settings of the power supply The active setting include voltage current protection limits and output state ON or OFF This feature may be also accessed using the web interface E Series models only see PAR 3 3 6 6 3 User determined output Sequences Up to 100 memory locations are available for pro gramming the KLR output using multiple command sequences that can be initiated by a single LIST command see KLR Developer s Guide This feature may be also accessed using the web interface E Series models only see PAR 3 3 6 6 3 e External Triggering If external trigger mode is selected grounding the EXT TRG line J2 pin 14 to pin 9 11 18 or 15 allows SCPI commands to change the output of
119. passwords described below are case sensitive NOTE In cases where multiple users are expected to have access to the units it is recom mended that password access be used to restrict contro of the unit to one user func tioning as a bus controller while allowing other users viewing access Allowing multiple users to issue commands to a single unit can cause unpredictable results and may cause the unit to lock up KLR010715 The OPERATE INSTRUMENT password restricts the ability to modify the OPERATE INSTRUMENT page settings The settings can still be viewed while password protected The CONFIGURE INSTRUMENT password restricts the ability to change some INSTRUMENT configuration parameters shown on the XONFIGURE INSTRUMENT page The CONFIGURE LAN password restricts the ability to change the LAN configuration parameters shown on the CONFIGURE LAN page Figure 3 6 AN ISO 9001 COMPANY KEPCO INSTRUMENT HOST NAME DHCP DESCRIPTION DESCRIPTION IP ADDRESS 92 E DHCP ENABLED OPERATE SUBNET MASK 2 E INSTRUMENT AUTOIP ENABLED DEFAULT GATEWAY PING ENABLED CONFIGURE DNS SERVER INSTRUMENT INSTRUMENT KLR010715 OPERATE INSTRUMENT CONFIGURE INSTRUMENT CONFIGURE LAN HELP KEPCO INC 131 38 Sanford Avenue Flushing NY 11352 USA Tel 718 461 7000 Fax 718 767 1102 www kepcopower com email hq gkepcopower com Copyright 2012 Kepco Inc All rights reserved FIGURE 3 6 WEB INTERFACE CONFIGUR
120. reads as close as possible to 10V 5 Click the Press to ACCEPT button to accept the value The status display will not change At the calibration window click the CURRENT Button to proceed to current calibration see PAR 4 4 2 KLR 010715 4 7 4 4 2 CURRENT CALIBRATION VXI plug amp play DEMO During current calibration the current current readback and analog current readback are cali brated 1 Click the CURRENT button on the Calibration Window to start current calibration a pop up box appears instructing the operator to connect the shunt across the output terminals Once the shunt is connected click OK the Current Calibration Window Figure 4 4 appears and the status display on the VXI main panel reads CMAX Must enter password to access Calibration PASSWORD Full Scale Calibration VE LTAGE Connect DYM to Sense Terminals Zero Calibration Connect DVM to Calibration Shunt External Calibration ANALOG REF See Manual for Proper Setup OUTPUT ON OFF Use to Adjust Current to Zero 2 SAVE CALIBRATION Instruction FIGURE 4 4 CURRENT CALIBRATION WINDOW 2 Monitor DVM and click the button to increase and the to decrease the output current until the DVM reads as close as possible to maximum rated current Calculate current as fol lows Amperes DVM reading Volts Shunt Resistance Ohms 3 Click the PRESS TO ACCEPT button to accept the value The status displ
121. reduce Full Scale resistance current 0 10K Ohms Min programming limit see Table 1 2 See PAR 4 3 3 to reduce Full Scale resistance Readback 0 10V proportional signal Proportional to analog control volt age resistance Remote inhibit TTL compatible Dual polarity see PAR 3 2 17 3 1 Composite status flag Isolated form C contacts Programmable functions PAR 3 2 17 1 PROGRAMMING CHARACTERISTICS DIGITAL Supported Interfaces GPIB standard models GPIB and RS 232 SCPI command set for GPIB and RS 232 see KLR Developer s Guide E Series models GPIB and LAN GPIB address range 1 to 30 Support SCPI command set see KLR Developer s Guide for GPIB and LAN Support four interfaces for LAN 1 Web interface port 80 2 SCPI Telnet port 5024 3 SCPI Sockets port 5025 4 VXI 11 port 1024 Factory default is 6 RS 232 Digital remote control standard models isolation Baud Rate range 2400 4800 9600 19 200 or 38 400 Safety Extra Low Voltage SELV Factory default is 38 400 format compatible with SCPI protocols W98 SE and later operating systems Programming resolution 0 02496 of Emax and Imax Programming accuracy 0 05 of Emax and Imax Readback resolution 0 024 of Emax and Imax Readback accuracy 0 1 of Emax and Imax Status reporting OVP OCP OTP output lead fault OLF fan failure po
122. relay signals RELAY NC pin 10 and or RELAY NO pin 2 respectively be twisted together with RELAY COM pin 4 as needed to eliminate noise pickup See PAR 3 2 17 1 to configure internal relay f External Trigger EXT TRIG External Trigger may be used with the SCPI TRIG commands see KLR Developer s Guide during digital remote operation For noise suppression it is recommended that wires from EXT TRIG pin 14 and ground pin 9 11 13 or 15 be twisted together DIGITAL CONNECTIONS The following paragraphs describe the connections required to use the GPIB RS 232 standard models only or LAN E Series models only ports for remote control of the unit GPIB CONNECTIONS Your computer must have a GPIB interface card installed Connect the power supply to the computer s GPIB interface card Use a standard GPIB interface cable at the GPIB port on the rear panel See Figure 2 2 Refer to Table 2 3 for GPIB port pin assignments Refer to PAR 3 2 12 to change the default GPIB address 6 from the front panel RS 232 CONNECTIONS STANDARD MODELS ONLY Communications between KLR considered data terminal equipment DTE and data communi cations equipment DCE e g a modem requires a patch cable or one with a pin for pin rela tionship between terminating connectors A null modem cable see Table 1 5 is necessary for nearly all applications with the exception of those in which the RXD and TXD line transposition is accomplished via ex
123. rom 0 9 Tap CURRENT control to advance to next digit 2 Repeat this process until all four digits have been selected Tap DC OUTPUT switch to accept the number If password is incorrect the status display reads ERR Repeat this step to enter the correct password or press the FUNCTION switch to exit DEFINING A LIMIT MODEL The limit model is defined by establishing a maximum programmable voltage and current for the unit within the maximum voltage and current ratings listed in Table 1 2 Once established the unit will not accept programmed values beyond these values whether from the front panel in local mode or from the digital GPIB RS 232 or LAN or analog input ports in remote mode NOTE Decreasing full scale voltage and or current does not improve programming resolution Whenever a limit model is set overvoltage and overcurrent protect limits see PAR 3 2 11 are reset to 12096 of the new maximum value except where necessary to maintain minimum values as noted in PAR 3 2 11 Also if position 3 of the Analog I O DIP switch is set to recall previous setpoint values upon power up see Table 2 2 and PAR 3 2 10 3 the previous setpoint value is cleared so that after changing the limit model the initial powerup will be at 0 Volts minimum cur rent In addition the following parameters which are not accessible from the front panel see PAR 3 3 2 should be checked to ensure that there are no settings outside the range permitted by
124. rotection Save Recall Reset List and Limit Model and are described in the following paragraphs NOTE Once data in a field has been changed clicking the browser s BACK button will cause all fields to revert to their previous values AN ISO 9001 COMPANY E KEPCO Maru Lss MANUAL T SUPPORT DRIVERS THE POWER SUPPLIER CE 1 eq HK 20 15 V 120 60 A INSTRUMENT KLR 20 120 SN A001776 DESCRIPTION OPERATE SAVE INSTRUMENT OUTPUT PROTECTION RECALL RESET CONFIGURE INSTRUMENT CONFIGURE LAN INSTRUMENT HELP FIGURE 3 7 WEB INTERFACE OPERATE INSTRUMENT PAGE KLR010715 3 3 6 6 1 3 3 6 6 2 3 3 6 6 3 KLR010715 CHANGING THE OUTPUT E SERIES MODELS ONLY The Output dialog box opens when the OPERATE INSTRUMENT page is first opened or when OUTPUT is clicked see Figure 3 7 To set output voltage or current enter the values and click SET Voltage and current settings are not allowed to exceed either a the limit model setting or b 83 396 of the protection value Attempts to set voltage or current beyond these limits will not be accepted To turn the output on or off click the ON OFF button within the simulated front panel CHANGING PROTECTION E SERIES MODELS ONLY Click PROTECTION to open the Protection dialog box Figure 3 8 To set the overvoltage and overcurrent protection values enter the values and click Set See PAR 3 2 11 for details about how overvoltage and overcurrent pro
125. s DC OUTPUT switch then rotate VOLTAGE control to change 000 or CURRENT control to change _200 then press DC OUTPUT switch to save MSK1 Shows first half of SUBNET MASK address see IP1 described above Default is 255 255 MSK2 Shows second half of SUBNET MASK address see IP2 described above Default is 0 0 GTE1 Shows first half of GATE address see IP1 described above GTE2 Shows second half of GATE address see IP2 described above DNS1 Shows first half of DNS address see IP2 described above DNS2 Shows second half of DNS address see IP2 described above RTN Return to LAN menu 3 15 3 2 16 3 2 17 3 16 UNIT CONFIGURATION The Configuration Function identifies the firmware version the KLR model and the options installed 1 If the status display shows SET tap either the CURRENT or VOLTAGE controls to take the unit out of setpoint mode status display goes from SET to blank 2 Using a thin tool e g a paper clip press the FUNCTION switch once then rotate either the VOLTAGE or CURRENT control until the status display reads CNFG 3 Tap DC OUTPUT switch to enter the submenu then rotate either the VOLTAGE or CUR RENT control to view the following configuration information When the status display reads VERS the DC VOLTS display identifies whether the firm ware is the factory shipped firmware Pri displayed or field updated firmware SEC dis played The DC AMPERES display shows th
126. s display on the VXI main panel reads INPV With the reference voltage adjusted to 10 000V click the PRESS TO ACCEPT button to accept the value Must enter password to access Calibration PASSWORD Full Scale Calibration Connect DVM to Sense Terminals Ba Zero Calibration CURRENT Connect DVM to Calibration Shunt VOLTAGE External Calibration See Manual for Proper Setup OUTPUT VOLT 3 __ CURR Instruction Press amp CCEPT when REFERENCE is at desired value SAVE CALIBRATION FIGURE 4 5 ANALOG REFERENCE CALIBRATION WINDOW 2 The status display reads INPC With the reference voltage adjusted to 10 000V click the PRESS TO ACCEPT button to accept the value 3 The status display will not change Proceed to PAR 4 4 4 to exit calibration KLR 010715 4 9 4 4 4 4 5 4 10 CALIBRATION EXIT VXI plug amp play DEMO NOTE Clicking the Calibrate Close button on the VXI main panel will exit calibration WITH OUT saving any calibration data 1 Click the SAVE CALIBRATION button on the calibration window to save this calibration 2 The Calibration window automatically closes and the Limit Model window automatically opens 3 The limit model settings can be changed after the password has been properly entered 4 NOTE The limit model is always reset following calibration If voltage calibration is com pleted regardless of whether or not current calibration is completed the limit model volt
127. scale while R1 can be used to adjust the current limit When the power supply operates in current mode R2 will adjust the volt age limit and R1 will adjust output current Factory default full scale F S resistance programming is 10K ohms based on F S program ming voltage of 10V To set full scale resistance to a lower value see PAR 3 2 17 4 to change the F S programming voltage to a lower value then adjust based on 1000 ohms Volt PROGRAMMING WITH EXTERNAL VOLTAGE Figure 3 15 is a simplified diagrams of the KLR showing the switch configuration and external connections required for analog programming using an external voltage 1 Limit Model PAR 3 2 9 and Overvoltage and Overcurrent settings PAR 3 4 3 must be established via either local programming or digital remote programming prior to initiating Analog Remote programming 2 Turn off power and configure the Analog I O DIP switch Figure 2 2 as follows SW1 OFF Program output voltage via voltage SW2 OFF Program output current via voltage SWS3 either OFF or ON disabled when in remote analog programming mode see Table 2 2 SWA Reserved Do not use SW5 Either OFF Local controls enabled or ON Local controls locked 3 Configure Analog I O Port J2 Figure 2 2 by referring to Table 2 7 and Figure 3 15 ground ing J1 pin 12 enables analog programming 4 Turn the unit on and wait until aRem appears in the status display before using V1 and or V2 Figure
128. shes the type of connection SERI series or PARA parallel CONFIGURE POWER SUPPLY AS MASTER STANDARD MODELS ONLY 1 Turn power on If the unit comes up in setpoint mode see PAR 3 2 7 tap either the CUR RENT or VOLTAGE controls to take the unit out of setpoint mode status display goes from SET to blank 2 Using a thin tool e g a paper clip press the FUNCTION switch once then rotate either the CURRENT or VOLTAGE control until the display reads M S 3 Tap the DC OUTPUT switch The status display reads either SERI series or PARA parallel The DC VOLTS display shows the number assigned to the unit 1 master 2 or above slave The DC AMPERES display shows the maximum number of units in the configuration The factory default is standalone operation DC VOLTS and DC AMPERES show 1 4 To change the configuration tap the DC OUTPUT switch once The DC VOLTS and DC AMPERES start blinking Specify either SERI series configuration for higher voltage or PARA parallel configura tion for higher current using either the VOLTAGE or CURRENT control by holding in and rotating the control Both connected units must be set the same either SERI or PARA Specify the total number of units in the configuration to 2 by rotating the CURRENT con trol Specify the unit number to be assigned 1 master by rotating the VOLTAGE control 5 Press DC OUTPUT to accept the displayed settings The unit briefly flashes WAIT the
129. shoot 2 max Rated output any load Rise Time Voltage 20V 40V 30 msec 75V 40 msec 0 Emax rated load resistive 150V 50 msec 300V 60 msec Current 20V 40V 30 msec 75V 40 msec 0 Imax rated load resistive 150V 50 msec 300V 60 msec Fall Time Voltage no load 20V 525 msec 40V 975 msec Emax 0 no load open circuit 75V 2820 msec 150V 4850 msec 300V 4400 msec NOTE For improved performance see RODC option PAR 1 3 1 Voltage rated load 20V 40V 30 msec 75V 40 msec 150V 50 msec 300V 60 msec Emax 0 rated load resistive Current 20V 40V 30 msec 75V 40 msec Imax 0 rated load resistive 150V 50 msec 300V 60 msec Overvoltage protection voltage 20 120 of Emax Programmable see PAR 3 2 11 Overcurrent protection current 72 120 of Imax Selectable Recovery Mode see PAR 3 2 17 3 2 Output Lead wire protection Shutdown Selectable Recovery Mode see PAR 3 2 17 3 2 Parallel operation Active load sharing within 5 of lo rated Up to 5 units maximum GENERAL ENVIRONMENTAL SPECIFICATIONS Temperature operating 10 to 50 C Rated load 50 to 70 C Derate current 3 per C over 50 C storage 40 to 85 C Cooling 3 internal d c fans exhaust to the rear Humidity 0 to 95 RH non condensing Shock 20g 11msec 50 half sine non operating Vibration 5 10 Hz 10mm double amplitude 3 axes non operating 10 55 Hz 2g
130. t are made via externally accessible switches controls and signal lines as speci fied within the product operating instructions There are no user or operator serviceable parts within the product enclosure Refer all servicing to qualified and trained Kepco service technicians 228 1729 COND CONFORM 010715 SAFETY INSTRUCTIONS 1 Installation Operation and Service Precautions This product is designed for use in accordance with EN 61010 1 and UL 3101 for Installation Category 2 Pollution Degree 2 Hazardous voltages are present within this product during normal operation The prod uct should never be operated with the cover removed unless equivalent protection of the operator from accidental contact with hazardous internal voltages is provided There are no operator serviceable parts or adjustments within the product enclosure Refer all servicing to trained service technician gt gt Source power must be removed from the product prior to performing any servicing 2 Grounding This product is a Class 1 device which utilizes protective earthing to ensure operator safety The PROTECTIVE EARTHING CONDUCTOR TERMINAL must be properly con nected prior to application of source power to the product see instructions on instal lation herein in order to ensure safety from electric shock PROTECTIVE EARTHING CONDUCTOR TERMINAL This symbol indicates the point on the product to which the protective earthing conductor must be attached
131. t panel unlock com mand see PAR 3 2 2 1 Note that digital commands that conflict with the analog pro gramming settings must not be issued as these can cause momentary unpredictability at the output until analog control is reasserted If unit calibration is initiated via one of the digital ports the unit will immediately exit analog remote control and enter digital remote control Resumption of remote analog control requires that source power to the unit be cycled REMOTE WITH LOCAL FRONT PANEL LOCKOUT To prevent unauthorized setting of the power supply to Local mode a local lockout mode can be enabled which prevents the power supply from being restored to local mode via the front panel 3 3 3 2 3 3 2 4 8 4 With the power supply turned off set the ANALOG I O DIP switch position 5 see Table 2 2 to ON Now when the power supply is turned on the status display will read one of the following LOCK front panel controls locked analog mode not enabled and no digital commands received aRw1 analog Remote with local lockout front panel controls locked analog mode enabled dRw1 digital Remote with local lockout front panel controls locked analog mode disabled and a digital command received Once the front panel is locked it can only be unlocked by either of the following e turn the power supply off set ANALOG I O DIP switch position 5 to OFF and then power up again send the following SCPI command via GPIB R
132. te Inhibit signal is active inhibit for low or high see PAR 3 2 17 3 1 for details How the unit recovers from faults see PAR 3 2 17 3 2 for details The second group does not require a password and includes GPIB address see PAR 3 2 12 for details Quick boot see PAR 3 2 17 2 for details Assignment of the internal relay see PAR 3 2 17 1 for details NOTE The MODE CHANGE DELAY field must contain a non zero value within the specified range regard less of the relay mode selected If the relay is assigned to Manual the state of the relay ON or OFF cannot be con trolled via remote commands The user must temporarily exit remote digital control see PAR 3 2 2 and set the relay state using local controls see PAR 3 2 17 1 Item 2 refreshing the browser page will return the KLR to remote digital control KLR010715 3 27 3 3 6 5 3 28 Once the configuration has been altered by changing the applicable fields click SUBMIT to save the new configuration or NO CHANGE to clear and reload the page without saving NO CHANGE is the same as browser refresh or reload NOTE When the SUBMIT button is clicked only one changed line is processed If multiple configuration changes are entered lines are processed in sequence from top to bot tom and multiple presses of SUBMIT are needed to process all the changes If a previ ously changed line is altered again it will be processed first AN ISO 9001 COM
133. te button to save the active settings Only the parameters shown in Figure 3 7 can be saved To save user determined settings Enter location 1 to 40 in the box between Save 9 and Preview buttons Click on the Voltage or Current field and enter the new value Pressing Enter or Tab key on computer keyboard advances the cursor to the next field while automati cally filling in the corresponding Overvoltage or Overcurrent field with the larger of either the minimum value or 12096 of the entered value Using the mouse to move the cursor to the next field prevents the Overvoltage or Overcurrent field from filling in automatically and allows the user to set custom values for Overvoltage or Overcurrent Once the desired values for Volt age Current Overvoltage Protection and Overcurrent protection are entered select whether the output is to be on or off then click Save 9 button to save the settings To Recall settings Enter the desired location in the LOCATION field and click Recall State to set previously stored settings as the active settings If a limit model setting is changed and a stored setting is outside the range established by the new limit model the data set is not loaded although there is no indication on the web page the Status Display of the power supply will flash E221 Settings conflict RESETTING THE UNIT RST E SERIES MODELS ONLY Click RESET to open the Reset dialog box then click RST button to reset power supply
134. tection function in the KLR power supply j SAVE LIMIT OUTPUT PROTECTION RECALL RESET LIST MODEL FIGURE 3 8 PROTECTION DIALOG BOX USING SAVE AND RECALL E SERIES MODELS ONLY The KLR Power Supply contains 40 memory locations that can be used to store either active Settings or a set of user determined settings Values are stored in the nonvolatile memory and are retained when the unit is turned off The stored settings can then be recalled using this fea ture These settings are cleared when a calibration is performed Click SAVE RECALL to open the Save Recall Dialog Box Figure 3 9 PROTECTION SAVE RECALL RESET CHANGES OR SAVES CURRENT INSTRUMENT STATE LOCATION FIGURE 3 9 SAVE RECALL DIALOG BOX NOTE When the SAVE RECALL tab is initially selected parameters for all locations appear as empty even when there are values stored from previous sessions Click the Pre view button first to avoid overwriting existing data To view currently stored settings Enter a location 1 to 40 in the box between Save and Preview buttons then click Preview button 3 31 3 3 6 6 4 3 3 6 6 5 3 32 To change currently stored settings Enter a location 1 to 40 in the box between Save and Preview buttons then click Preview button Modify the settings and click Save button to save the modified settings To save the active settings Enter the desired location 1 to 40 in the LOCATION box and click Save Sta
135. ternal hardware e g older Apple MAC computers with D sub serial port See Table 2 4 for RS 232 port pin assignments Connect the cable to the KLR at the RS 232 port located on the rear panel See Figure 2 2 Refer to PAR 3 2 13 to change the default baud rate 38400 from the front panel LAN CONNECTIONS E SERIES MODELS ONLY Connect the KLR to the LAN via the RJ 45 LAN port located at the rear panel See Figure 2 2 Refer to Table 2 5 for LAN port pin assignments Refer to PAR 3 2 15 to configure the LAN inter face from the front panel Some configuration can also be done through the web interface see PAR 3 3 6 4 Refer to the KLR Developer s Guide for the associated SCPI commands 2 15 2 16 Blank SECTION 3 OPERATION 3 1 GENERAL This section explains how to operate the KLR Power Supply Series KLR feature three modes of operation Local Mode see PAR 3 2 This is the default operating mode providing full access to all programming and readback functions via front panel displays controls and indica tors Digital Remote Mode see PAR 3 3 This mode is selected via commands transmitted through one of the two digital ports One port is configured for IEEE 488 GPIB The second port is either an RS 232 port standard models or a LAN port E Series models The digital ports are described in the KLR Developer s Guide The power supply auto matically goes into digital remote mode when commands are accepted via one of
136. that allows all the functionality of the local front panel The VXI plug amp play soft front panel controls are explained in the KLR Developer s Guide REMOTE PROGRAMMING USING THE WEB INTERFACE E SERIES MODELS ONLY Remote programming of the KLR via the LAN port can be accomplished using a standard web browser connected to the internet The factory default LAN settings of the KLR are DCHP on AUTOIP on When source power is applied to the power supply e g circuit breaker switched 0n it first tries to find a DCHP server and get an IP address during this time the LAN indicator continues to blink If a server is found and an address assigned the LAN indicator stays on with out blinking KLR010715 3 3 6 1 3 3 6 2 KLR010715 If the server is not found after approximately 10 seconds or if DHCP has been disabled the unit will use AUTOIP to get an address if an IP address is found the LAN indicator stays on without blinking The range of valid AUTOIP addresses is 169 254 000 000 through 169 254 255 255 inclusive Note that the Network Mask default for AUTOIP is 255 255 000 000 If an IP address is not found after two seconds the LAN indicator stays off The FUNCTION LAN menu see PAR 3 2 15 can be used to view the IP address that was found or change it if desired The user can also elect to disable both DHCP and AUTOIP func tions and enter IP Network Mask Gateway and DNS addresses manually TROUBLESHOOTING LAN COMMUNICATION P
137. that if last setting recall PAR 3 2 10 3 is enabled the Setpoint values are from the last setting SETTING LIMIT MODEL E SERIES MODELS ONLY Refer to PAR 3 2 9 for details about what Limit Model means for KLR and how the limit model affects other parameters Click LIMIT MODEL Figure 3 7 to open the Limit Model dialog box Figure 3 13 The current limit model settings are displayed To change the settings enter the Unit Password see PAR 3 2 8 and press ENTER key on the computer keyboard After the password is accepted the Unit Password field is inaccessible gray and the Maximum Voltage and Maximum Current fields can be changed Enter the desired maximum voltage and maxi mum current then press ENTER key all fields are gray for a second or two while the power supply accepts each entry The Password field is reset after leaving the Limit Model dialog box Setting a new limit model resets the setpoints to zero Volts and minimum Amperes and resets the OVP and OCP values to 12096 of limit model maximum A minimum programmed current is required to ensure proper operation of the power supply under all load conditions Programmed current is automatically set to be at least the minimum current actual value depends on model see Table 1 2 If DIP switch position 3 is enabled see Table 2 2 and PAR 3 2 10 3 stored set points for voltage and current are cleared when the limit model settings are saved KLR010715 3 4 KLR010715 SA
138. the digital ports Analog Remote Mode see PAR 3 4 This mode is selected via a jumper wire at the analog programming port prior to initial turn on and provides limited access to program ming and readback functions 3 2 LOCAL MODE OPERATION Local operation of the KLR Power Supply is accomplished via the front panel switches and con trols illustrated in Figure 2 1 and described in detail in Table 2 1 Separate 4 digit LEDs display actual output voltage and current these same displays show set points and limits as well Sta tus 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 breaker see Figure 2 1 to ON Apply firm continuous pressure to rocker actuator until fully engaged right side of rocker actuator locked parallel to front panel If actuator does not lock when released allow actua tor to return to starting position then wait a few seconds before repeating turn on sequence CAUTION DO NOT attempt to tease the switch contacts closed by repetitive press and release action The circuit breaker is trip free design if overload exists contacts cannot be held closed by actuator After turning the unit off allow at least 5 seconds before turning the unit on again 2 When the power supply is turned on it performs a self test and displays the following infor mation Status display flashes KLR for 2 sec
139. the new maximum programmable voltage and current Storage of User programmed Active Settings Save Recall User determined output Sequences External Triggers VOLT TRIG and CURR TRIG values Sequences programmed using LIST commands 3 7 3 2 10 3 2 10 1 3 8 To define a limit model proceed as follows 1 If the status display shows SET tap either the CURRENT or VOLTAGE controls to take the unit out of setpoint mode status display goes from SET to blank 2 Using a thin tool e g a paper clip press the FUNCTION switch once so that the status dis play reads LMT The DC VOLTS and DC AMPERES displays show the programmed maxi mum voltage and current of the limit model To exit without changing the limit model rotate either VOLTAGE or CURRENT control until Status display reads EXIT then tap DC OUT PUT switch To change the limit model limits proceed to step 3 3 Tap the DC OUTPUT switch once The status display shows PASS Enter the unit password see PAR 3 2 8 and tap DC OUTPUT switch to accept the number When the password is accepted the limit model settings in the DC VOLTS and DC AMPERES displays begin blink ing 4 Rotate VOLTAGE and CURRENT controls until desired values appear in DC VOLTS and DC AMPERES displays Tap the associated control to change digits Pressing and holding the control in while turning changes adjustment resolution see PAR 3 2 4 Under no condi tions will the power supply accept
140. the unit to exit remote analog programming mode and return to local operating mode this can also be done by sending any command or query via the remote digital inputs To restore remote analog control cycle source power OFF for five seconds then restart REMOTE DIGITAL OPERATING MODE INSTRUCTIONS How do I enable digital operating mode Sending any digital command or query via either the GPIB LAN or RS 232 port immedi ately sets the unit in remote digital operating mode and disables the local operating controls on the front panel For details on com mand formatting and communication protocols see PAR 3 3 How do l exit remote digital programming mode Simultaneously depressing and releasing both Voltage and Current knobs will force the unit to exit remote digital programming mode and return to local operating mode Remote digital control is reactivated upon transmission of any digital command or query by the control host computer How do lview change the GPIB address The factory default GPIB address is 6 Using a thin tool press FUNCTION once status reads VIRT Rotate Voltage or Current knob until status reads ADDR the active GPIB address shows in AMPS display To exit rotate Voltage or Current knob till status reads EXIT then tap DC OUTPUT To change tap DC OUTPUT AMPS display blinks Rotate Cur rent knob to change address and tap DC OUTPUT to accept display flashes DONE then ADDR See above to exit How do view change RS 232 baud rat
141. to Standalone operation Standard Models Only 3 13 3 2 15 LAN Interface Configuration E series Models Only 3 14 3 2 16 Unit Configuration uoce 20u kp du eke rende ceto tuse Satin kk EE 3 16 3 2 17 Utility FUN Cts iii t emet eee eb moet TTE 3 16 3 2 17 1 Intermal Belay Gontrol t ier REL in ied e RU EE 3 17 3 2 17 2 QUICK aolo 4i stp eB ERU REPRE UN er ter RR IIS 3 18 3 2 17 3 System Configuration Functions nennen nennen nnne nennen nnne 3 19 3 2 17 3 1 Remote Inhibit Polarity ET 3 19 3 2 17 3 2 Fault Recovery Mode id astu ceret eere eee ru ee eda re abutere Vu VER LENA 3 19 3 2 17 4 Analog Output Full Scale Calibration nennen nennen nennen 3 21 3 2 17 5 Analog Input Full Scale Calibration cots centos ot Gein rie nennen rennen 3 22 3 2 17 6 Galibratio m ds hel igi hice EE EE EE 3 22 3 3 Remote Mode Programming Using Digital Interfaces ss kk kk ek kk kk KRA 3 22 3 3 1 Factory Default Settings s idee e E 3 22 3 3 1 1 GPIB Factory Defaults x oi 3 5 91 tet e n di ban dika RR 3 22 3 3 1 2 RS 232 Factory Defaults Standard Models Only eene 3 23 3 3 1 3 LAN Factory Defaults E Series Models Only seen 3 23 3 3 2 Additional Functions Not Available from the Front Panel iiid kk kk k 3 24 3 3 3 Remote Programming Using the IVI COM Instrument Driver 3 24 3 3 4 Remote Programming Using the LabView G I
142. to the power on default state setpoints to zero Volts and minimum Amperes see NOTE PAR 3 2 1 step 3 and Table 1 3 and output set to OFF RST also clears all LIST entries SAVE OUTPUT PROTECTION RecA RESET LIST FIGURE 3 10 RESET DIALOG BOX USING A LIST USER PROGRAMMED SEQUENCES E SERIES MODELS ONLY Using the LIST feature up to 100 locations are available for programming the KLR output These locations enable the user to program the output using sequential steps which may be ini tiated by a single command The repeatable user determined sequences are stored in volatile memory and are retained until reprogrammed the power supply is turned off a calibration is performed or a LIST CLEar command is received If a limit model setting is changed and a programmed value is outside the range established by the new limit model that step is exe cuted as the default minimum zero V minimum A although the location contents are not changed KLR010715 KLR010715 Create the List Click LIST to open the List dialog box Figure 3 11 Each location defines the values for one step voltage and current and a dwell time duration between 0 5 and 655 36 seconds NOTES 1 Dwell times down to 0 01 second can be obtained using SCPI commands via RS 232 or GPIB interfaces to generate the list see KLR Developer s Guide 2 The state of the internal relay can be stored using the VXI plug amp play driver or SCPI LIST commands see KLR
143. ts of the relay provide status flags via the Analog I O port connector The maximum values are 1 2 x Egmax for over voltage protection and 1 2 x Iomax for overcurrent protection A built in feature prevents the unit from encroaching upon the above margins for OVP and OCP For example if OVP and OCP are set to 12V and 72A respectively programming of the output is automatically limited to 10V and 60A NOTE When a limit model is defined PAR 3 2 9 OVP and OCP limits are automatically set 2096 and 2096 respectively above the maximum programmable values established by the limit model If OVP or OCP limits are lowered by the user valid output voltage and current settings will be lower than the limit model limits because values within the 2096 guard band of OVP or OCP are prohibited The OVP and or OCP limits can be changed as follows 1 Using a thin tool e g end of paper clip press and hold the PROTECT switch The output is switched off setting voltage to zero Volts and current to a minimal value and the status dis play shows PROT The DC VOLTS and DC AMPERES displays show the corresponding overvoltage 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 switch is released the protection values showing in the DC VOLTS and DC AMPERES displays are entered as the new protection values C
144. tted otherwise the browser will lock requiring the browser to be closed and reopened OPERATING THE UNIT USING WEB INTERFACE E SERIES MODELS ONLY To operate the unit click the OPERATE INSTRUMENT box at the left A simulated front panel at the top of the screen shows 1 output voltage and current 2 CV or CC if the unit is in constant voltage or constant current mode respectively is displayed if the output is off meaning the unit is in neither CV nor CC mode and 3 whether the output is on or off An ON OFF button can be clicked to turn the output on or off A small white dot below the voltage display flashes to indicate the web page is communicating with the unit If a fault condition exists an alert window indicates the type of fault and operation via the web is disabled When the fault is corrected click OK to close the alert window and resume operation via the web NOTE Ifthe OPERATE INSTRUMENT password has been set see PAR 3 3 6 5 you will be prompted to enter the password before the OPERATE INSTRUMENT page settings can be changed If the unit has been set to Analog control mode the OPERATE INSTRUMENT page displays only voltage current CV or CC mode and output state The unit can not be controlled via the LAN interface and the message Analog Remote Contro is displayed on the open web page The functions that the user can modify are listed on the black menu bar below the representa tion of the front panel Output P
145. tus display flashes MODL model for two seconds while the DC VOLTS display shows EoyAx and the DC AMPERES display shows loMAx E g for model 75 32 DC VOLTS reads 75 and DC AMPERES reads 32 Then the status display flashes LMT Limit model for two seconds while the DC VOLTS display shows EouAx and the DC AMPERES display shows loMAx E g for model 75 32 DC VOLTS reads 75 and DC AMPERES reads 32 Then the status display flashes PROT protection limits for two seconds while the DC VOLTS display shows 120 of EoMAx and the DC AMPERES display shows 120 of loMAx E g for model 75 32 DC VOLTS reads 90 0 and DC AMPERES reads 38 4 KLR 010715 2 6 2 6 1 2 7 KLR 010715 Then the status display reads SET setpoint mode the DC VOLTS display reads 0 Volts the DC AMPERES display reads minimum Amperes see Note 1 below NOTES 1 A minimum programmed current actual value depends on model is required to ensure proper operation of the power supply under all load conditions Pro grammed current is automatically set to be at least the minimum current 2 If an error indication is blinking in the Status display refer to Table 3 1 for an expla nation of error codes 3 Rotate VOLTAGE adjust knob clockwise Verify that DC VOLTS display increases in large X 100 increments 4 Press and rotate VOLTAGE adjust knob clockwise Verify the DC VOLTS display increases in finer increments than step 3 then release knob 5 A
146. tus display reads RTN then tap the DC OUTPUT switch To exit the UTIL menu rotate either VOLTAGE or CURRENT control until the status display reads EXIT then tap the DC OUTPUT switch SYSTEM CONFIGURATION FUNCTIONS The system configuration functions allow the user to determine 1 whether the Remote Inhibit signal is an active TTL high or low and 2 how the unit recovers from a fault The unit password see PAR 3 2 8 is required to change these functions 1 Enter UTIL menu see PAR 3 2 17 steps 1 through 3 and rotate either VOLTAGE or CUR RENT control until status display reads SYST 2 Tap the DC OUTPUT switch to enter the System Configuration Functions menu 3 2 17 3 1 REMOTE INHIBIT POLARITY The Remote Inhibit signal REM INH is applied to analog I O port pin 8 see PAR s 2 7 9 and 3 2 6 This signal can be configured to be active inhibit the output for either a TTL high or low 1 Enter UTIL menu see PAR 3 2 17 steps 1 through 3 and rotate either VOLTAGE or CUR RENT control until status display reads syst then tap DC OUTPUT switch Rotate either VOLTAGE or CURRENT control until the status display reads rINH and the DC VOLTS dis play reads either Hi or Lo To change the remote inhibit setting tap the DC OUTPUT switch The status display shows PASS Enter the unit password see PAR 3 2 8 and tap DC OUTPUT switch to accept the number When the password is accepted the status display reads rINH and DC VOLTS dis
147. ues for set point voltage and current readback limit model the limit model and protection settings of the slave are automatically programmed to be the same as the master and protection settings for the master slave configuration All controls on the slave are disabled The parallel or series combi nation is controlled from the master using either the front panel SCPI commands or analog control f analog control is used only the master is configured for analog control the slave is controlled digitally by the master f Remote Inhibit is used it should only be connected to the master f E241 hardware error is showing in the status display check the master and or slave setup If necessary use FUNCTION switch to enter the M S menu to change the config uration as described above e If there is no communication between units for approximately 10 seconds all units will turn off their output and the status display will flash E241 hardware error then xoFy where x unit number and y total number of units and finally the serial parallel config uration setting SERI or PARA Fault recovery mode PAR 3 2 17 3 2 for all faults is fixed as PROTected mode Calibration cannot be performed on a master slave pair the individual units must be reconfigured back to independent mode PAR 3 2 14 4 and then calibrated as individual units Baud rate is automatically adjusted to highest supportable rate as part of master slave
148. uroblocks PROGRAMMING CHARACTERISTICS LOCAL Local control rotary encoders Panel mounted Local control resolution Coarse 100 LSB step Fine 1 LSB step Depress control for Fine resolution Setting range 0 100 of rating Power up settings voltage defaults to zero current defaults to min value See Table 1 2 See PAR 3 2 10 3 for Last Settings Recall function Protection Limits Overvoltage 20 120 of Emax Overcurrent 72 120 of Imax Programmable accessed via front panel protect switch or SCPI command over digital bus KLR 010715 1 5 TABLE 1 3 KLR SPECIFICATIONS Continued SPECIFICATION PROGRAMMING CHARACTERISTICS ANALOG RATING DESCRIPTION CONDITION COMMENT Analog remote control selection Activate with jumper at analog program ming connector Recognized during power up isolation Safety Extra Low Voltage SELV Analog Input Update Rate 2Hz 0 5 Second Applies to program Analog input voltage digitized 12 bit ming by voltage resistance and read resolution optically isolated then pro back specifications cessed by digital section Programming by voltage voltage 0 10V See PAR 4 3 3 to reduce Full Scale voltage current 0 10V Min programming limit see Table 1 2 See PAR 4 3 3 to reduce Full Scale voltage Programming by resistance voltage 0 10K Ohms See PAR 4 3 3 to
149. wer loss See PAR 1 5 4 and 1 5 9 1 6 KLR 010715 d 9 9 9 JDELS SEE DETAIL o l 6 6 amp s ec C UM 6 cC 0 UL LIL HE e Em PHILLIP e x 043459 DETAIL FIGURE 1 2 KLR SERIES POWER SUPPLY MECHANICAL OUTLINE DRAWING SHEET 1 OF 2 KLR 010715 1 7 1 i 6 36 3 e SEN j a E LENS 133 38 8 26 is ON 0 34 54 8 76 MIN DEEP 6 3205 FOR CABLE MIN DEEP FOR CABLE CLAMI 94 25 23 ps d 2 14 54 48 0 16 9 T 3ACKPLATE YELLOW IRIDITE ARENTHESES ARE IN MILLIMETERS
150. will flash E241 hardware error 6 Repeat steps 2 through 5 to restore the slave unit to standalone operation LAN INTERFACE CONFIGURATION E SERIES MODELS ONLY If the status display shows SET tap either the CURRENT or VOLTAGE controls to take the unit out of setpoint mode status display goes from SET to blank Using a thin tool e g end of paper clip press FUNCTION switch once then rotate either VOLTAGE or CURRENT control until status display reads LAN Press DC OUTPUT switch to enter the LAN Interface configuration menu Rotate either VOLTAGE or CURRENT control to see the available functions LRST LAN Reset To restore the LAN interface configuration to the factory default tap DC OUTPUT switch once then rotate either VOLTAGE or CURRENT control to show YES in the DC VOLTS display then tap DC OUTPUT switch again The factory default settings listed in PAR 3 3 1 3 are restored upon exiting the Function menu DHCP DHCP status is displayed in the DC VOLTS display To change the setting press DC OUTPUT switch then rotate either VOLTAGE or CURRENT control to see desired setting and press DC OUTPUT switch to save e ON The KLR requests an IP address from the DHCP server AUTOIP set to OFF OFF The KLR uses the IP MASK GATE and DNS addresses established by the user using either the UTIL LAN menus at the front panel the web interface see PAR 3 3 6 or via SCPI commands over one of the digital interfaces AUTO IP
151. y be protected by a clamping diode connected in its non conducting direction in paral lel with the output This diode protects the power supply outputs against secondary effects in the event of a load short Note that this is NOT the same as the blocking diode used for parallel redundant operation Selection of the clamping diode is entirely dependent upon output volt age current parameters The clamping diode must be rated for the maximum voltage and cur rent of the series connection Several clamping diodes in parallel may be required to meet the total current rating The user must also respect the 600V d c maximum isolation from output to chassis when determining the maximum series voltage Figure 2 4 shows a series connection of two KLR power supplies using remote sensing Kepco strongly recommends that series applica tions employ master slave control available on standard models only as described in PAR s 2 7 8 and 3 2 14 Users considering series configuration of KLR are urged to contact Kepco Application Engineering first to discuss application details before ordering KLR power supplies intended for Series operation PARALLEL OPERATION Identical KLR power supply models may be connected in parallel in order to provide increased output current to a common load see Figure 2 5 This permits the user to obtain significantly higher load ratings than for a single KLR power supply The number of power supplies required is determined by dividin
152. y locations that can be used to store active settings This feature is only available via digital remote programming Values are stored in the nonvola tile memory and are retained when the unit is turned off refer to PAR 3 3 2 for more informa tion USER PROGRAMMED SEQUENCES The KLR Power Supply contains 100 memory locations for programming sequences that can program the KLR 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 stored in the volatile memory and are lost when the unit is turned off refer to PAR 3 3 2 for more information LAST SETTING RECALL The KLR Power supply has the ability to retain the last voltage and current setpoints pro grammed before the unit is shut off A DIP switch selection position 3 allows the user to deter mine whether the power supply is set to OV minimum current or the retained voltage and current setpoints upon the next power up sequence Refer to Table 2 2 and PAR 3 2 10 3 for more information BUILT IN PROTECTION KLR Series Power Supplies provide built in protection against the system faults listed below In each case a detected fault results in immediate latched shutdown of the power supply output In addition the status display flashes the appropriate indication and the status bit is set for retrieval through either of the digital programming ports If

KLR Series User Manual

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