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M470039-01 REV-F

Page 10

STEP OPERATION SET-UP

STEP FUNCTION

STEP COUNT

STEP MODE

ENTERING STEPPING MODE VALUE

FOUR: REMOTE OPERATION

INTRODUCTION

INTRODUCTION TO GPIB & RS-232 (SCPI) COMMANDS

OVERVIEW SCPI LANGUAGE

SYNTAX OVERVIEW

LANGUAGE DICTIONARY

COMMAND STRUCTURE

SCPI (GPIB & RS-232) COMMAND SET

COMMON COMMANDS

101

COMMAND LIST

102

FIVE: CALIBRATION

104

INTRODUCTION

104

CALIBRATION SERVICE ENVIRONMENT AND PRECAUTIONS

104

CALIBRATION REQUIRED EQUIPMENT

104

CALIBRATION CONFIGURATION

105

CALIBRATION PARAMETERS

105

LOCAL CALIBRATION PROCEDURES

106

RE-INSTALLING CALIBRATION DATA

112

SIX: NEW ELOAD FEATURES

113

POWER INTERRUPTION

113

UNDER TEMPERATURE WARNING

114

INPUT CONTACTOR CONTROL

114

ULTRA-LOW RANGE OPTION

115

STEP MODE MODIFICATION

117

OSC RANGE SELECTION

119

INTERLOCK FUNCTION

120

STEP TIME UNIT

121

OVERPOWER WARNING MESSAGE

121

PV SWEEP FUNCTION

122

MASTER-SLAVE PARALLEL OPERATION 126
REMOTE INHIBIT 130

SEVEN: SPECIFICATION AND POWER CURVE

131

COMMON SPECIFICATIONS

131

PLA POWER CURVES

133

PLW POWER CURVES

134

APPENDIX A: PEL & PLA/PLW COMMAND COMPATIBILITY TABLE

135

APPENDIX B: PLW – COOLING SYSTEM GUIDELINE

139

APPENDIX C: PV SWEEP & PV OPERATION GUIDE 155

Содержание Amrel PLA 2U

Страница 1: ...M470039 01 Rev F www powerandtest com PLA PLW SERIES Programmable DC Electronic Load Operation Manual This manual covers models PLA Air Cooled Series PLW Water Cooled Series...

Страница 2: ......

Страница 3: ...dentification purposes only Notice of Copyright PLW PLA Series Operation Manual May 2019 AMETEK Programmable Power Inc All rights reserved Exclusion for Documentation UNLESS SPECIFICALLY AGREED TO IN...

Страница 4: ...M470039 01 REV F Page 3 This is page intentionally left blank...

Страница 5: ...both personnel and equipment safety Always ensure that facility AC input power is de energized prior to connecting or disconnecting any cable In normal operation the operator does not have access to h...

Страница 6: ...M470039 01 REV F Page 5 This page intentionally left blank...

Страница 7: ...ated contrary to the instructions of AMETEK is opened modified or disassembled in any way without AMETEK s consent or is used in combination with items articles or materials not authorized by AMETEK T...

Страница 8: ...M470039 01 REV F Page 7 This page intentionally left blank...

Страница 9: ...IT 32 INPUT CURRENT LIMIT 32 INPUT POWER LIMIT 32 DIMENSIONAL DRAWING DESCRIPTIONS 34 PLW 2U MODEL 34 PLA 2U MODEL 36 PLA 3U MODEL 38 PLW 4U MODEL 40 PLA 4U and 6U MODEL 42 TWO INSTALLATION 44 INTRODU...

Страница 10: ...CROSS MODE 65 CROSS RANGE 65 TRIGGER SOURCE 65 PROTECTION 65 V ON PROTECTION UVL 65 MAX MIN SETTING FUNCTION 66 CALIBRATION PARAMETERS 66 OSCILLATE 66 OSC DETECTION DISABLE AND DELAY FEATURES 66 BOOT...

Страница 11: ...TION CONFIGURATION 105 CALIBRATION PARAMETERS 105 LOCAL CALIBRATION PROCEDURES 106 RE INSTALLING CALIBRATION DATA 112 SIX NEW ELOAD FEATURES 113 POWER INTERRUPTION 113 UNDER TEMPERATURE WARNING 114 IN...

Страница 12: ...ONT PANEL 40 FIGURE 1 13 PLW 4U REAR PANEL 40 FIGURE 1 14 PLA 4U FRONT PANEL 42 FIGURE 1 15 PLA 4U REAR PANEL 42 TABLE 2 1 BASIC SETUP PROCEDURE 44 FIGURE 2 1 SHIPPING OR STORAGE PACKAGE LABEL 46 TABL...

Страница 13: ...lectronic load consumes minimum power to control maximum input power handling capability Complex circuits are used to control the power balance and dissipation of the MOSFET This control circuit also...

Страница 14: ...Voltage Rating Current Rating E Package Suffix FEATURES AND OPTIONS Four constant operating modes Constant current CC constant voltage CV constant resistance CR and constant current CP mode operation...

Страница 15: ...able firmware Self diagnostic capability Redundant OverTemperature Protection Four Step profiles 256 step pointsfor each profile Soft Start Functionality Convenient and efficient Hot Keys for mode and...

Страница 16: ...manual and auto range control mode Ranges Parametersmay be programmed in any of the three overlapping ranges The low range provides better resolution at low settings The range can be set using the fro...

Страница 17: ...mode it is equivalent to programming full scale current for the present current range In CR mode it is equivalent to programming the minimum resistance for the present resistance range Important Notes...

Страница 18: ...ernal or externalsignals You can program up to 256 settings or steps in the profile the time interval dwell that each setting is maintained the numberof times that the list will be executed and the se...

Страница 19: ...TP condition all internal MOSFETS are working near their full capacity and can faildue to excessive heat To prevent over temperature the electronic load has a built in redundant over temperature prote...

Страница 20: ...ple in order to obtain 300 watts the input current value multiplied by the input voltage value will need to equal300 watts otherwise an error will occur For CR mode the input voltage value divided by...

Страница 21: ...r The appropriate bit s in the statusregisters are set when any of the above protection features are active The front panel display will indicate which condition s have been detected Resetting Latched...

Страница 22: ...P undervoltage UVP and underpower protection UPP If there are any applications that require a minimum voltage current or power level for normaloperation the system will shut down when the level drops...

Страница 23: ...ny numbers exceeding the 4th digit will be rounded to the next significant digit and displayed as the read back value LCD DESCRIPTION 1 Mode Indicator Constant Voltage CV Constant Current CC Constant...

Страница 24: ...tatus indicatorwill change from RMT to LCL The Local key also accesses all eLOAD menu options and parameters forconfiguring desired settings Key STEP Allows programming of time duration and value sett...

Страница 25: ...e Left Decrement Value Rotate Right Increment Value SLEW Hot Key Pressed Press Hold Make Selection Modify Enter Value Tap Change Decimal Position Rotate Left Scroll Through Selection Increment Value R...

Страница 26: ...Press LOCAL MENU key or press and hold encoder to enter into menu mode 2 Rotate the encoderto select menu item 3 Press ENTER or press and hold the encoder to accept the setting 4 Press CLEAR or press...

Страница 27: ...SURE SENSE LOCAL REMOTE PORT0 OFF ON EXT CONTROL OFF ON SHORT CONTROL OFF ON SHORT TIME 0 65535 mS CROSS MODE INPUT OFF INPUT REMAIN CROSS RANGE INPUT OFF INPUT REMAIN RSF DETECT OFF ON TRIGGER SOURCE...

Страница 28: ...ON CONTROL V ON STATE INPUT ON CONTINUE V ON THRESHOLD 01 000V MAX MIN LIMIT MAX VOLTAGE VMAX MIN VOLTAGE 000 000V MAX CURRENT IMAX MIN CURRENT 000 000A MAX RESIST RMAX MIN RESIST RMIN MAX POWER PMAX...

Страница 29: ...function for factory use only PROFILE RECALL 0 DONE 1 DONE 2 DONE 3 DONE SAVE 0 DONE 1 DONE 2 DONE 3 DONE RESET ENTER TO RESET DONE DISPLAY METER MODE V I V P V C V R I P I C I R R P R C P C V T I T...

Страница 30: ...L ENABLE ON OFF PANEL PASSWD Default 555555 ETHERNET ADDRESS 0 0 0 0 NETMASK 0 0 0 0 GATEWAY 0 0 0 0 SWEEP CONTROL ENABLE ON OFF MODE PV CV CC CR CP START VALUE 0 00000 STOP VALUE 0 00000 STEP VALUE 0...

Страница 31: ...MANU HI STEP STEP TIME 00000 ms VALUE 000 000V A W PRESS ENCODER TO ENTER ENCODER RIGHT 1 for Point of step increment step by 1 ENCODER LEFT 1 for point of step decrement step by 1 MODE MAIN CC OFF ON...

Страница 32: ...nput current monitoring signal Generates a 0 10Volt output signal that is linearly proportionalto the electronic load s 0 to full scale current 7 NC No Connection 8 FAULT Fault signal output A TTL com...

Страница 33: ...Current Control loops As for overpower conditions in CC mode please limit the input voltage to prevent the OP fault condition shutting down the Load input Two over current protection features have bee...

Страница 34: ...RRENT POWER RELATION DIAGRAM The theory of the CP operation comes from the divider circuit built in the load Because of the nonlinear characteristic of the divider the input voltage input current and...

Страница 35: ...r Mode Selection 8 Constant Voltage Mode Selection 9 Transient Duty Cycle Setting 10 Slew Rate Rising Falling Time Setting 11 Manual Trigger Button 12 Single Pulse Power Interruption Transient Operati...

Страница 36: ...relay configuration that provides user s flexibility and isolation required to an external controller or an externalalarm panel The delay is 3 second d RI_1 Remote Inhibited RI is used as an emergenc...

Страница 37: ...Selection 8 Constant Voltage Mode Selection 9 Slew Rate Duty Cycle Setting 10 Slew Rate Rising Falling Time Setting 11 Manual Trigger Button 12 Single Pulse Power Interruption Transient Operation Sele...

Страница 38: ...arm outputs provide a normally open relay configuration that provides user s flexibility and isolation required to an external controller or an externalalarm panel The delay is 3 second d RI_1 Remote...

Страница 39: ...controller or an externalalarm panel The delay is 3 second b RY_CO Relay Common Provides the common reference connection only for RY_NC or RY_NO c RY_NO Dry Contactsalarm a fault alarm is declared if...

Страница 40: ...e unit the connection between common and RI pin needs to be open again and it will have 3 seconds delay 4 External programming port 5 Connector GPIB IEEE 488 2 6 Connector DB9 for RS232 7 Connector RJ...

Страница 41: ...Specifications for detailed unit dimensions FIGURE 1 12 PLW 4U FRONT PANEL NOTE All front panel descriptions are the same for 2Uand 4U FIGURE 1 12 PLW 4U REAR PANEL Note Please refer to the Specificat...

Страница 42: ...mote Inhibited RI is used as an emergency switch to disable the system RI can be connecting to a switch or an open collector device that shorts the RI pin to common EGND whenever it is necessary to di...

Страница 43: ...screw threads 2 Positive input terminal one M12 two M6 screw threads 3 Relay connector a RY_NC Dry Contactsalarm a fault alarm is declared if there is a loss of AC power or protections are triggered...

Страница 44: ...is used as an emergency switch to disable the system RI can be connecting to a switch or an open collector device that shorts the RI pin to common EGND whenever it is necessary to disable input of the...

Страница 45: ...power connection 4 Test Perform functionaltests for Functionaltest CV mode CC mode and front panelcontrols 5 Source Connect the source Source connection 6 Sense Connect sensing lines Local and Remote...

Страница 46: ...supplied by AMETEK Programmable Power Inc clearly marked on the outside of the box o A return addresswhere the unit can be shipped Post office boxes are not accepta ble o A contact person telephone em...

Страница 47: ...air space at the rear of the unit for the fan exhaust Any ventilation space at the top and bottom of the supply will further lower internal opera tingtemperatures FUSE REPLACEMENT If the fuse is susp...

Страница 48: ...low Blow External Fuse Beneath the AC receptacle PLA 8U Slave 6 3A 250V Slow Blow External Fuse Beneath the AC receptacle TABLE 2 2 FUSE REPLACEMENT SPECIFICATIONS AC INPUT POWER CONNECTION Disconnect...

Страница 49: ...ximum load wiring length for operation with sense lines Noise and impedance effectsof the load lines CURRENT CARRYING CAPACITY As a minimum load wiring must have a current capacity greater than the ou...

Страница 50: ...forinlet water INLET WATER Refer to attached drawing of Rear Panel diagram for the position of the inlet water pipe located in the bottom left center of the cabinet Properly tighten the pipe with the...

Страница 51: ...the load 3 Flow Meter s inlet and outlet should be equal or greater than PLW pipe size 4 Install a 150 micron filter at the water inlet 5 Water pressure must be less than 80 PSI in order for the valve...

Страница 52: ...the viscosity of the coolant To counteract the lowered heat dissipation the GPM must be increased to maintain proper cooling of the system refer to specific PLW model datasheet for requirement Increa...

Страница 53: ...SFETs To obtain efficient heat exchange rate between heat sink and power MOSFETs the user needs to follow the instruction outlined below to ensure the heat is removed from heat sink properly to preven...

Страница 54: ...IGURATION When the Electronic Load is strapped for local sensing an unavoidable voltage drop is incurred in the load leads and this adds to the load regulation Hence local sensing is usually used in a...

Страница 55: ...d in an in sync external control signal By utilizing an external control signal and ensuring all eLOAD are identical in model operating range and mode synchronized parallel eLOAD operation can be achi...

Страница 56: ...onnected to the Trigger input of the DMM Additional instruments can be daisy chained to a DMM in the same manner Once the preset settings of the instruments have been programmed one trigger signal can...

Страница 57: ...to the maximum operating current of the application 2 The power rating of the Load Bank will decrease based on the amount of power dissipated at the boost power supply 3 A protective diode rated for t...

Страница 58: ...voltage and power range in order to safely test and obtain the best results Note Protection Mode will shut off the Load Bank input please take the necessary precaution VOLTAGE AND CURRENT METERING INF...

Страница 59: ...mode CV CC CR and CP and the Range selection key allows easy range switching from manual all ranges to auto By switching to other modes range the input will shut off A cross mode and cross range featu...

Страница 60: ...t then press the CLEAR key to erase the wrong entry and repeat step 3 5 Press the ENTER key to complete the entry operation 6 If the entered value is over the maximum rating of the current range then...

Страница 61: ...ge Decimal Position Rotate Left Decrement Value Rotate Right Increment Value SLEW Hot Key Pressed Press Hold Make Selection Modify Enter Value Tap Change Decimal Position Rotate Left Scroll Through Se...

Страница 62: ...CROSS MODE press ENTER key use to select INPUT OFF INPUT REMAIN then press ENTER 7 CROSS RANGE press ENTER key use to select INPUT OFF INPUT REMAIN then press ENTER 8 TRIGGER press ENTER key use to se...

Страница 63: ...n press ENTER B Profile Menu press ENTER key Use to select the next menu setting then press ENTER key to enter the selected menu Use CLEAR key to back space or to correct the wrong value 1 RECALL pres...

Страница 64: ...nt large voltage drops over lengthy wires If the voltage reading between the remote sense and bus bardiffer by greater than a set threshold Remote Sense Fault RSF will trigger and shutdown the input N...

Страница 65: ...icationsguarantee a 0 10 V External Programming Voltage If an application requiresa positive and negative voltage swing VAC the External Programming port can support up to 10 VAC Ext VAC 1 VAC EXT_CTR...

Страница 66: ...e user can program all the protection values and delay times Protection will be activated once the protection mode has been tripped and then shut down the eLoad input The protection delay setting prov...

Страница 67: ...cal key press Enter then use the keys to select the Max Min Limit function then the ENTER key Use keys to select the appropriate Min Max setting by pressing the ENTER key The LCD will display the curr...

Страница 68: ...e calculations by monitoring and testing the battery directly After the user changes the display combination to V C all current values entered and or measured will be in C automatically The Current va...

Страница 69: ...tween PEL and PLA PLW command sets Please refer to PEL PLW PLA COMMAND COMPATIBILITY APPENDIX for further information EOS CODE EOS CODE NULL only CR only LF only CR LF In the GPIB communication the us...

Страница 70: ...ess ENTER to select option 5 Select ADDRESS and press ENTER to select option 6 Enter the IP addressas 0 0 0 0 if it is not and press ENTER 7 Choose NETMASK by rotating the encoder to scroll and press...

Страница 71: ...Exit press LOCAL to go back to the start up screen The Ethernet Port Number is 3000 Please contact AMETEK Programmable Power Technical Support for any additionalEthernet Set up Question USB FUNCTION T...

Страница 72: ...the install from a list or specific location Advanced radio button and click next to continue 5 Select the Search for the best driver in these locations Radio default and check only the search remova...

Страница 73: ...M470039 01 REV F Page 72 6 Click next 7 The Wizard will search for the needed drivers 8 After the driver hasbeen found the wizard will display the completing the Found New Hardware Wizard screen...

Страница 74: ...nish to complete USB driver installation 10 A pop up balloon will notify you that the USB Serial Device is ready for use Windows 2000 USB Driver Installation Procedures 1 Connect eLoad using USB cable...

Страница 75: ...F Page 74 3 The Found New Hardware Wizard screen will appear 4 Click Next to continue 5 Select the Search for suitable driver for my device recommended to search for the appropriate driver 6 Click Ne...

Страница 76: ...iles are located in the pre packaged CD 8 Check the Specify a location check box and click Next to continue 9 Select the drive corresponding to yourCD ROM and locate the folder name FT245VCP driver 21...

Страница 77: ...M470039 01 REV F Page 76 11 The correct driver hasbeen located click Next to continue installation 12 Windows will check for the validity of the device driver click Yes to continue installation...

Страница 78: ...vers to the PC 14 The above screen will appearto notify the end of the installation process and the USB Serial Port will now function properly 15 Click Finish to complete setup Windows 98 USB Driver I...

Страница 79: ...F Page 78 2 A new hardware will be detected 2 The Add New Hardware Wizard window will appear 3 Click next to continue 4 Select the Search for the best driver for yourdevice radio button and click Nex...

Страница 80: ...k the Specify a location check box and browse to select the file FT245 VCP driver 2104 XP certified from your CD ROM drive 6 Click Next to continue 7 Now the location of the driver has been set and cl...

Страница 81: ...agerwindow 2 Locate and record the USB Serial Port COM Port number under ports 3 Enter into hyper terminal Start Accessories Communications HyperTerminal 4 Enter connection name i e AMREL 5 Choose the...

Страница 82: ...EP modes is activated via the STEP hot key then the selected STEP mode will begin once input is on All Transient Modes can be selected or activated by using their designated Hot Keys The Step function...

Страница 83: ...ss the DUTY hot key and tap the encoder to change the duty cycle to 50 then press ENTER to confirm 9 Press the CONT hot key to select the Continuous Transient Operation mode 10 Activate the Continuous...

Страница 84: ...vels LCL Operation 1 Using the mode hot keys select operating mode CC CV CR CP 2 Set the MAIN level by holding down the encoderand rotate to change the value or enter numerically 3 Set the Transient l...

Страница 85: ...otate to change the value or enter numerically 3 Set the Transient level by pressing the PEAK hot key and edit the value using the encoderor enter manually 4 Select Continuoustransient operation by pr...

Страница 86: ...level by pressing the PEAK hot key and edit the value using the encoderor enter manually 4 Select Continuoustransient operation by pressing the TOGGLE hot key 5 Set the duty cycle and frequency by pre...

Страница 87: ...et RS 232 2 Communicate with the instrument using e Tool 1 and confirm connection by sending the command IDN 3 The returned parametershould indicate the eLoad s firmware revision number 4 Select the T...

Страница 88: ...ger signal is received Note For front panel operation the STEP ONCE function will only activate the first step in the step cycle For PC operation by sending a TRG or TRIG command with transient on the...

Страница 89: ...y twice to enter the value or use the encoder to increment or decrement the value Press the ENTER key to confirm the selection Press CLEAR key to exit from the STEP Configuration Menu STEP MODE MODE p...

Страница 90: ...ter or tap the encoder to confirm The step time value on the bottom left hand corner of the LCD screen will flash now enter the new time value 400 and press enter to confirm 5 Set third step value Pre...

Страница 91: ...turer The same SCPI command can be applied to different classes of instruments SCPI systems are much easier to program and maintain In many cases you can interchange or upgrade instruments without hav...

Страница 92: ...ssage Queries return either measured values or internal instrument setting When a keyword is followed by a question mark it becomes a query The follows the last keyword of a command statement You shou...

Страница 93: ...onic Load The IEEE 488 1 command ISET and SET if current active mode is CC mode can also be used CURR This command sets the input current level that is to be applied immediately in the constant curren...

Страница 94: ...nge 0 to maximum value MIN MAX Example CURR TLEV 30 sets the current transient level to 30A CURR DUTY This command sets pulse duty cycle as a percentage of the total cycle of continuous transient mode...

Страница 95: ...at a rate determined by the slew rate in effect The IEEE 488 1 command RTR can also be used The input resistance transient switching will occur only when RES TLEV is programmed asfollowing Low Range T...

Страница 96: ...grammed delay period the Electronic Load input is off and shunts no voltage Parameter 0 to maximum value MIN MAX Units ms Example VOLT PROT OVER DEL 1000 sets the over voltage protection delay to 1000...

Страница 97: ...voltage level that is to be applied immediately in the constant voltage mode Parameter 0 to maximum value MIN MAX Units Volt Example VOLT LIM MAX 50 sets maximum voltage input level to 50 Volts VOLT L...

Страница 98: ...level and transient level at a rate determined by the slew rate in effect If the programmed transient power level is below the main voltage level the switching will not occur until the main level is...

Страница 99: ...short will be reapplied to the new mode or range Parameter OFF or 0 ON or 1 Example INP SHOR 0 disables the short across the input INP REL Programming OFF closes the relay contacts programmingON opens...

Страница 100: ...Unit Example CURR DUTY 50 sets a 50 duty cycle for transient current mode FREQ This command sets pulse frequency of continuous transient mode in Hz If the Electronic Load is operating in another mode...

Страница 101: ...EP VAL 0 5 sets step 0 to 5Amps CC Mode STEP TIME STEP COUNT TIME This command sets the step dwell time for a specified step ParameterforStep count 0 to 99 ParameterforTime 10msto 600 000ms 10min Exam...

Страница 102: ...ar Electronic Load commands The eLoad respondsto 8 common commandsthat controlinternaloperation status and event registers and system data CLS Clear StatusCommand This command clearsthe StatusByte sum...

Страница 103: ...Volatge VTR MAX MIN VOLT TLEV MAX MIN TRansient Current ITR MAX MIN CURR TLEV MAX MIN TRansient Resistance RTR MAX MIN RES TLEV MAX MIN TRansient Power PTR MAX MIN POW TLEV MAX MIN SLEW rate value SLE...

Страница 104: ...AX POW LIM MAX LIMIT Voltage MIN VOLT LIM MIN LIMIT Current MIN CURR LIM MIN LIMIT Resistance MIN RES LIM MIN LIMIT Power MIN POW LIM MIN MODE and RANGE commands MODE Query MODe CURR MODE MODe CC MODe...

Страница 105: ...the front panel keys To maintain electronic load s precision input calibration should be performed at least annually The nineteen parameters that need to be calibrated After all the electronic load pa...

Страница 106: ...main level programming CR middle range main level programming CR high range main level programming CP low range main level programming CP high range main level programming CV transient level programmi...

Страница 107: ...key simultaneously It will take approximately 3 seconds for the eLoad to save the new calibration values During this period the LCD will display SAVING CONFIG Do not turn off eLoad during this period...

Страница 108: ...MAIN CR0 parameter Press enter CR0 LO CNT Input measured voltage from Volt DMM then press ENTER CR0 LO CNT Input measured voltage from Curr DMM then press ENTER CR0 HI CNT Input measured voltage from...

Страница 109: ...Curr DMM then press ENTER CP1 HI CNT Input measured voltage from Volt DMM then press ENTER CP1 HI CNT Input measured voltage from Curr DMM then press ENTER key A SUCCESS message should be display on...

Страница 110: ...essage should be display on the front panelLCD Press to select MAIN CC2 Then press enter CC2 LO CNT Input measured voltage from Curr DMM then press ENTER CC2 HI CNT Input measured voltage from Curr DM...

Страница 111: ...power output to calibrate the unit Only qualified personnel should attempt this calibration due to the high level of power Use and until you see TRAN CP0 parameter Then press enter CP0 LO CNT Input me...

Страница 112: ...SUCCESS message should be display on the front panelLCD CC LOW RANGE READBACKLEVEL CALIBRATION CC readback low range calibration requires a power supply that covers full range of high range input curr...

Страница 113: ...to 39 So there should be 40 valuesfor slope data Get offset value Run command SYST OFFS mode to get calibration offset values where mode is from 0 to 39 So there should be 40 valuesfor offset data 2...

Страница 114: ...fuel cell is loaded at a constant current and the current is interrupted by bringing it down to zero or lower current level During the interrupt period the battery or fuel cell voltage is measured As...

Страница 115: ...sation please verify inlet outlet water pressure differential and temperature are within requirements Proceed testing with caution to ensure the UTT message doesnot continue If message still occurs pl...

Страница 116: ...y time Parameters 50 500ms Query Syntax INPut CONtactor DELay Returned Parameters 50 500ms 4 Ultra low CC CP and Ultra high CR Ranges OptionalFeature Project requirements are dynamic and over a long t...

Страница 117: ...he ultra modes will cause the eLoad input to disable and not sink any power 2 The maximum current loading in CPUL and CRUHis 01 IMAX Local Control MODE RANGE CONSTANT CURRENT AUTO PRESS CC HOT KEY MAN...

Страница 118: ...ll STEP AUTO The Step Auto mode will traverse through the user defined step cycle until the end of the dwell time upon the receiving a trigger signal Note When triggering the STEP AUTO function via th...

Страница 119: ...ified point SOURce STEP CURRent TIMe This command specifies the dwell time for each STEP Each value of point represents the time in milli seconds that the input will remain at the particular STEP poin...

Страница 120: ...orfurtherStep Operation and comprehensive Step SCPI Commands 6 OSC RangeSelection The OSC Range selection now includes DISABLE DEFAULT DISABLE OSC1 DISABLE OSC2 DISABLE OSC3 With the new selections th...

Страница 121: ...s where it is used as a redundant protection that forces the eLoad Input to the off state in the case of alarms orprotection trips The Interlock control statescan be configured please see below Local...

Страница 122: ...command selectsthe time base unit for STEP Operation between millisecond or second Command Syntax STEP TIM UNIT Action Number Parameters Action Number 0 millisecond 1 second Query Syntax TRIG ACT PRO...

Страница 123: ...mode VOLT CV constant voltage sweep mode RES CR constant resistance sweep mode POW CP constant power sweep mode PV Photovoltaic sweep mode NOTE 1 While in PV mode CV sweep operation will be done and...

Страница 124: ...e 2 while query by SWE STAT g Description control or query the sweep state Usage SWE EP STAT E 0 OFF 1 ON SWE EP STAT E 0 OFF force sweep operation to stop 1 ON launch sweep operation NOTE 1 while swe...

Страница 125: ...de when SWEEP ENABLE OFF refer to manual for details of front panel operation b Sweep enabled mode eLoad operate in sweep mode when SWEEP ENABLE ON VFD display format first line of VFD display meter v...

Страница 126: ...nge L SWP STEP ISC sweep operating at short circuit in low range M SWP STEP ERR 3 sweep operation halted with error code 3 hot key with led definition only STEP is valid which will launch or stop swee...

Страница 127: ...High Range CR Mode Low Range CV Mode Low Range CV Mode Mid Range CV Mode Hi Range Setup Configuration GPIB RS 232 USB ETHERNET Master Slave 1 External Programming Port 1 2 3 4 5 6 7 8 9 10 11 12 Exter...

Страница 128: ...ger Source Selection Menu from the Utility Menu LOCAL MENU LOADCONTROL TRIGGER SOURCE b Press Enter to configure Trigger Source Selection c Select the required trigger source 7 Set Input Contactor Con...

Страница 129: ...nter to configure TTL low at TRIG_IN to disable Input c Press INPUT Hot Key on which will be flashing and waiting for trigger to turn on later 7 INPUT always ON LOCAL MENU LOAD CONTROL BOOTINPUT ON 8...

Страница 130: ...me models this configuration can be working as one single unit with increased power and current rating 2 To further improve current accuracy in Master Slave configuration User can perform current cali...

Страница 131: ...ice that shorts the RI pin to common EGND whenever it is necessary to disable input of the unit Once RI is activated it will turn off the dc output In order to re activate the unit the connection betw...

Страница 132: ...M470039 01 REV F Page 131 SEVEN SPECIFICATIONAND POWER CURVE COMMON SPECIFICATIONS...

Страница 133: ...Specification measure by slow band and 25 C room temperature unless otherwise specified 2 Transient Mode Specification must be x2 3 Please contact AMETEK Technical Support for a full detail datasheet...

Страница 134: ...24 5x17x5 25 PLA2 5K 70 24 5x17x5 25 PLA3K 70 24 5x17x5 25 PLA4K 104 24 5x17x7 00 PLA5K 104 24 5x17x7 00 PLA6K 135 24 5x17x10 5 PLA7 5K 135 24 5x17x10 5 PLA10K 105 dual boxes 24 5x17x7 00 dual boxes P...

Страница 135: ...01 REV F Page 134 PLW Model Weight lbs Dimension WxHxL inch PLW6K 60 27 5x17x3 5 PLW9K 65 27 5x17x3 5 PLW12K 80 27 5x17x3 5 PLW18K 90 27 5x17x3 5 PLW24K 140 27 5x17x7 0 PLW36K 160 27 5x17x7 0 PLW POWE...

Страница 136: ...6 Configure GPIB address RS 232 Speed 7 Click Start The ARPEL program provides simple click and select menus to control functions on the load as well as a command prompt for entering SCPI commands PE...

Страница 137: ...S LEV IMM RES LEV TRIG RES LEV TRIG PSET PSET POW LEV IMM POW LEV IMM POW LEV TRIG POW LEV TRIG TR TR TLEV TLEV VTR VTR VOLT TLEV VOLT TLEV ITR ITR CURR TLEV CURR TLEV RTR RTR RES TLEV RES TLEV PTR PT...

Страница 138: ...OVER VOLT PROT UND VOLT PROT UND CURR PROT UND CURR PROT UND POW PROT UND POW PROT UND VOLT PROT OVER DEL VOLT PROT OVER DEL CURR PROT OVER DEL CURR PROT OVER DEL POW PROT OVER DEL POW PROT OVER DEL V...

Страница 139: ...AL Step Time 0 65535 ms STEP VALue STEP COUNT VALUE STEP VALue STEP COUNT VALUE Step Count 0 99 Step Value Min to Max Value of Mode Range Step Count 1 256 Step Value Min to Max Value of Mode Range UTI...

Страница 140: ...a Water Flow Meter to Monitor GPM Flow 2 PLW HEATSINK TEMPERATUREVS GPM CURVES Model Type Water Temp C GPM Model Type Water Temp C GPM PLW6K 10 C 2 PLW36K 10 C 12 15 C 2 5 15 C 15 20 C 3 20 C 18 PLW12...

Страница 141: ...M470039 01 REV F Page 140...

Страница 142: ...gulating Valve is a good reference B There may be circumstanceswhere the water valve is latched open due to excessive inlet pressure and GPM Flow To identify this issue simply monitor the watervalve c...

Страница 143: ...guidelines below and run a couple of iterations of the water cooling cycle to ensure the water cooling system is operating normally D The Water Valve will conduct between 30 C 34 C Valve LED Illumina...

Страница 144: ...ture When the heat sink temperature drops to 24 C the valve will close The valve actsas a switch to prevent the internal heat sink temperature from dropping below 20 Cor lowertemperatures that may cau...

Страница 145: ...M470039 01 REV F Page 144 2 Unplug the 12VDC connector 4 pin remove the hexagonal nut and take off the coil assembly...

Страница 146: ...M470039 01 REV F Page 145 3 Remove the 4 screws securing the solenoid and take off the solenoid assembly...

Страница 147: ...it Do not forcefully remove the rubber diaphragm it could be permanently damaged After removing the solenoid valve assembly from the PLW unit look for any residue or sediments that may be clogging the...

Страница 148: ...has an air tight fit with the piping system and connect the solenoid assembly back into place 6 Fasten the screws slowly to make sure the four corners are balanced to prevent a leakage 7 Place the coi...

Страница 149: ...reate a pressure leak The result will cause a loud vibration sound when the water valve is trying to turn on due to the pressure leak the valve will be unable to open properly Generally when a loud vi...

Страница 150: ...e defective valve A replacement will be shipped shortly 12 Replace the rubber diaphragm and reconnect it back with the metal solenoid assembly Make sure the metal stub forms a snug fit with the rubber...

Страница 151: ...g system requirements the external piping kit is designed to convert two 3 8 NPT into one NPT To properly install the coolant distribution kit please refer to the following directions carefully Compon...

Страница 152: ...M470039 01 REV F Page 151 6 OUTLET BOTTOM interconnect pipe x 1pcs 7 Plastic Round Shim ID OD 0 003 Thick x 4 pcs...

Страница 153: ...wrap approximately 3 to 4 times around each pipe male threads of each interconnect pipe to ensure a tight seal and to prevent leak Thoroughly clean the male and female thread and wrap the tap in the d...

Страница 154: ...d connection into the mating female end connection until hand tight approximately 2 threads Then tighten the male end connection until wrench tight approximately 2 threads When installing the inlet an...

Страница 155: ...the other ranch torque carefully at the interconnect pipe Tighten the male end connection into the mating female end connection until hand tight approximately 2 threads Then tighten the male end conne...

Страница 156: ...ontrol panel will pop up for operation Access ControlPanel When interface successfully connect to device a control panel will be displayed on the windows desktop Note For Solar PV testing please use P...

Страница 157: ...additional features for the PV Sweep Function Input Off eLoad will not operate at max power point Input On eLoad will operate at max power point Panel Load eLoad will resume back to normal operation P...

Страница 158: ...hile version information is located at bottom of control panel and it look like where 1 01 is software version of this tool program and 2 45 is device firmware revision number Meter Graph Display Cont...

Страница 159: ...asured temperature shown on meter panel see below when we check bullet of meter Description of I V Graph In the I V graph see below X axis define configured value for each step of specified mode left...

Страница 160: ...ured current at the right is its value of X axis Pmax maximum measured power at the right is its value of X axis Pmin minimum measured power at the right is its value of X axis I cursor values of left...

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