Warranty - Schulz Electronic GmbH
Contents
1. 4 1 4 1 General Information M 4 1 4 2 Description of Overall System eere ee 4 1 5 HEMOTE OPERATIODN siis Uti Qu S ME CERE REGE UE haus ua un US ELLER 5 1 5 1 General Informatii 5 1 5 1 1 Setting the GPIB Address and RS 232C Parameters eese 5 1 5 1 2 Wire Connection of 5 2326 5 2 5 2 The GPIB Capability of the AC Source eere esee ee etes enses testen tese reven stas en senses tastes etn es 5 3 5 3 Introduction to Programming ceres cresce teens eene enne ennen vennen seta sete stes esse 5 3 3 3 Conventions ue tne eue he EN UE 5 4 5 3 2 Numerical Data Formats eese 5 4 3 3 3 Boolean Data Format onere e eee Poi vetere a a aae beses 5 4 5 3 4 Character Data Format ccccccccccesesesesesesesesesesecsesesesssessseseseseseseseseseseseseseseseseseseseseseeesseeseeeees 5 4 5 3 5 Basic Definitioh nane metti e ep ORIG 5 5 5 4 Traversal of the Command Trree eee ee eese ee ee seen eee 9 92 eee 9 eee en nee ta 5 7 55 Execution Order deep assai 5 7 5 6 The Commands of the AC Sourc2. Output Measurements 0 02 v2 DISP 0 02 SET UP Press to enable the active output and the LCD will show as follows 3 15 Chroma 6460 6463 6490 User s Manual CHROMA programmable AC source Model OUTPUT SETTING V 100 0 F 60 0 Output relay ON Output status RUN Output Measurements 100 00 V2 99 79 0 04 I2 1 90 P2 99 89 F NOTICE The user may observe the measured values of the measurable items under Output Measurements on the lower part of the LCD For detailed description of the measurement please refer to subsection 3 4 3 4 Measurement The AC source can measure the actual performance of a load connected to it without using an extra measuring instrument When the AC source is active it measures the V I F P etc of a load of each phase The user can select the measurement point at the connector of a load remote sense ON or at the output connector of the AC source itself 3 4 1 The Selection of Measurement Items The AC source can display concurrently up to 7 measurable readings including V P I CF PF F Ptot The user can select different measurement functions to display the measured readings If the user selects less than three mesurement functions the LCD will display the measurement in enlarged characters as follows The lower half of the main operational menu is the display area of measuremnet Chroma 6460 6463 6490 User s Manual CHROMA programmable AC sour
3. 5 Select a desired measurement funtion and press ENTER to confirm The cursor moves to the second column automatically 6 You can select the phase 21 22 or 23 for 6463 6490 by turning the rotary knob and pressing ENTER to confirm The cursor moves to the next item of the first column When you return to the main menu these measurement items will be displayed on the lower half of the screen as shown by the above sample Note If the user selects more than three items the odd items will be displayed on the left column and the even items on the right one If the selected items are less than Or equal to three they will be listed with only one column in enlarged characters 7 Repeat step 4 5 and 6 for the remaining items 3 4 2 Measurement Functions Chroma 6460 6463 6490 User s Manual The AC source offers 7 measurement functions to the user All the functions can be specified to display in the main operational menu as stated in the previous subsection The definitions of the functions are listed in the following table Table 3 1 Available Measurement Functions dk is the measurement readings of Voltage in Volts true RMS measurement rF hk is the measurement readings of Frequency in Hertz I P k is the true Power meausrement in Watts cr is the Crest Factor and its calculation formula Ipeak Irms pF It is the Power Factor and its calcultation formula true power Vrms x Irms Pot
4. mode for 6460 and 1 phase mode for 6463 6490 3 2 5 The Setting of Setup The operational menu of SET UP manages the setups for V full range waveform data lock protections etc Press SET UP to enter into the menu of SET UP and the LCD will display as follows Chroma 6460 6463 6490 User s Manual CHROMA programmable AC source Model 6490 SETUP PARAMETERS Range 300V Data lock OFF Buzzer ON SYSset PROTECTION SAVE Current limit 15 00 delay time 0 0 sec Voltage limit 300 0 RECALL QUIT 3 2 5 1 The Output Range The AC source supplies full range of output voltage with two options of 150 V or 300 V To set the range of output voltage as 150 as follows 1 Move the cursor to the command line of Range Range 300 2 Press a or v to change the option from 300 to 150 then press ENTER Range 150 NOTICE The AC source will set output voltage as 0 V first in order to eliminate voltage spike when range changes Then it will set output voltage as set value It may cause UUT to shut down or get bad if the output is active and range changes 3 2 5 2 The Data Lock The AC source allows the user to lock data entries so the pre defined parameters can be protected from being modified by an unauthorized person Chroma 6460 6463 6490 User s Manual The procedures for the setting of data lock are shown below 1 Move the cursor to the command line of Data lock Dataloc
5. parallel 0 8 1 phase 0 8 1 phase Temp coefficient 0 02 per Max current phase 150V 300V 500V 150V 300V 150V 300V 150A 75A 38A 100 IKHz 50A 25A gt 100 1KHz 75A 38A gt 100 1KHz y Range 45 1KHz Accuracy 0 15 Resolution 0 01Hz 45 99 9Hz 0 1Hz 100 999 9Hz 0 1Hz 100 999 9Hz 0 1Hz 100 999 9Hz Voltage Range 190 250V 3o Frequency Range 47 63Hz Current 35A Max Phase 24A Max Phase 35A Max Phase Power Factor 0 98 Min under full load MEASUREMENT Voltage Phase Range 0 150V 0 300V Accuracy rms 0 1 F S 0 25 Resolution Current phase Range peak 0 140A 1 3 Chroma 6460 6463 6490 User s Manual Resolution Power phase ed i ed Frequency rs es ae OTHERS 80 typ 80 typ 80 typ OPP OLP OTP FAN Fail FAN Fail FAN Fail 0 40 0 40 0 40 40 to 85 40 to 485 40 to 485 SAFETY CE INCLUDE LVD and EMC REQUIREMENT Remarks Maximum distortion for voltage varies from half to full range with linear load 2 Test with sinewave and remote sense 1 4 Chroma 6460 6463 6490 User s Manual 1 5 Names of Parts 1 5 1 The Front Panel 9 Z anod 0000 000 4X6 agua PROGRADMARLE AG sounen moos dan o 0000000000000000000000000000000000000 000000000000000000000000000000000000 o o 0000000000000000000000000000000000000 00000
6. Sample nodes operational menu and the command tree are shown below 3 1 Chroma 6460 6463 6490 User s Manual The command tree Output setting menu _7 _ CONFIG MORE SAVE RECALL QUIT DISP QUIT SET UP SYSset SAVE RECALL QUIT RUN PAUSE 3 Parameters zone The remaining area offers information which guides the user to program the AC source to view the current status to collect measurement results etc 3 2 2 Data Entry Before describing each menu the operations common in the parameters zone will be explained below Movement of Cursor Use any of the cursor moving keys 4 to move the cursor to the desired parameter for programming There are two ways for the user to set the parameters One is in normal mode and another in editing mode The following example is how to set output voltage 3 2 Chroma 6460 6463 6490 User s Manual Normal Mode 1 Press the desired numeric keys of 1 i i i 2 to set V 135 2V 2 Press a or v key repeatedly or keep pressing any of them until the desired value V 135 2V is shown on the LCD Then press ENTER to confirm Increase or decrease value is done through the use of the farthest right digit NOTICE If a parameter is modified the user has to press ENTER to update the current data and save them into memor otherwise the old data will remain when he exits from the machine Editing
7. 2 4 3 GPIB Address The AC source offers the mode of remote operation too For details please refer to Chapter Five Prior to remote operation the user has to set the GPIB address 10 as follows 1 Move the cursor to the command line of GPIB address GPIB address 30 10 GPIB address 10 2 Press 5 0 to set address NOTICE Addressing space ranges from o to 30 3 2 4 4 The Setup of RS 232C The AC source offers another remote operation through the RS 232C bus Communica tion protocol is set as follows To set baud rate 19200 parity ODD 1 Move the cursor to the command line of Baudrate Baudrate 4800 Parity EVEN 2 Press a or v or turn RPG to select 19200 then press ENTER Baudrate 19200 Parity EVEN 3 The cursor moves automatically to the setting position of parity Press a or v or turn RPG to Baudrate 19200 4 Parity ODD select ODD then press ENTER 3 9 Chroma 6460 6463 6490 User s Manual amp NOTICE The options of baud rate are 2400 4800 9600 19200 The options of parity are EVEN ODD NONE 3 2 4 5 The Saving To save all of the system data as follows 1 Press SAVE and the LCD displays as Save to group 0 right 2 Press the numbers from 0 to 2 on the numeric keypad to select a desired memory group 3 Press ENTER to confirm it NOTICE 1 Selection of memory group is programmable by pressing the numeric keypad only Other
8. 380 3 MODEL Y Figure 2 1 b 6460 6463 6490 380 3 Y Input Connection 2 4 Output Connection The output terminal block is located in the rear downside of the AC source Load connection to the AC source is done at the output terminals To meet the safety requirements the wires to the load must be sufficiently large gauges so they will not overheat while carrying the output current See figure 2 2 on the next page 2 3 Chroma 6460 6463 6490 User s Manual OUTPUT z gan COM N GND SENSE Figure 2 2 a 6463 6490 Three Phase Output Connection OUTPUT 2S ES X 4 Figure 2 2 b 6463 6490 One Phase Output Connection Chroma 6460 6463 6490 User s Manual OUTPUT 91 2 COM GND SENSE Figure 2 2 c 6460 Series Output Connection Note Vioap 2 V set OUTPUT 21 s2 COM GND f le x LY NE vA VY Figure 2 2 d 6460 Parallel Output Connection 2 5 Chroma 6460 6463 6490 User s Manual Table 2 1 The Characteristics of AWG American Wire Gauge Copper Wire AWG No AWG No a a TV RE n 34 6 a 0 wa 4 105 A 1 Capacity is based on the ambient temperature of 30 C with the conductor rates at 60 C 2 5 Remote Sense Connection The remote sense function of the AC source monitors the voltage at the load instead at the output terminal of the AC source for 6460 series mode and 6463 6490 3 phase mode It ensures the delivery of accurate voltage
9. Mode Display of Cursor In editing mode the user can set parameters V 135 2_ F 60 0 immediately without pressing ENTER to confirm The mode only allows the user to set V or F parameter When the user moves the cursor to V parameter and presses to enter into the editing mode the cursor will show as right Set the output voltage as 132 2V as follows Move the cursor to the position of digit 5 using and press to set V2132 2 Press to enter into editing mode Editing mode is useful when you want to change V or F parameter only one digit or to set output V or F in step change In this mode the user can increase or decrease the value of current position by pressing A v or PRG too Press agian to quit from editing mode 3 2 3 Output Setting 3 3 Chroma 6460 6463 6490 User s Manual The Output Setting on the screen is the main operation menu in the AC source which accepts AC output parameters including V F Sync source etc In this menu the user can activate the AC source by pressing the soft key of and obtain the measured results at the terminals of the devices under test 3 2 3 1 Setting Output Voltage and Frequency NOTICE The maximum output voltage of ONE power stage is limited by the peak value of the waveform which is about 425 Vpeak 6463 6490 have three power stages that can be selected in three phases or one phase parallel 6460 has two power stages that can be selected in series
10. Remote programming is accomplished either through the GPIB bus or the RS 232C serial port 1 3 Key Features A Configuration Local operation from the keypad on the front panel Remote operation via GPIB or RS 232C interface Protection against Over power Over load Over temperature and Fan fail Temperature controlled fan speed e Built in output isolation relays B Input Output Selective output voltage with full scale of 150V 300V for 6463 6490 and 150V 300V 500V for 6460 Remote control by the use of analog voltage reference Full page display of setup and measurement results Measurement of V I F P CF and PF 1 1 Chroma 6460 6463 6490 User s Manual 1 4 Specifications The operation specifications of the model 6460 6463 6490 are listed below on the next page All specifications have been tested according to the standard Chroma test procedures All specifications are based on a remote sense connection 25 1 C and resistor load unless specified otherwise Chroma 6460 6463 6490 User s Manual Model 6460 6463 6490 OUTPUT PHASE l parallel or series 1 or 3 selectable 1 or 3 selectable OUTPUT RATINGS Power Phase 6000VA 2000VA 3000VA Voltage Range Phase 150V 300V parallel 150V 300V 150V 300V 300V 500V series Accuracy 0 296 of F S 0 296 of F S 0 296 of F S Resolution 0 1V Distortion 1 1 1 Line Regulation 0 1 Load Regulation 0 2 3 phases 0 8
11. a command has more than one header the user must separate them with a colon FETC CURR FUNC SHAP Data must be separated from program header by one space at least 5 5 Chroma 6460 6463 6490 User s Manual Program Message Program message consists of a sequence of zero or more elements of program message unit that is separated by separator elements of program message unit Program Message Unit Program message unit represents a single command programming data or query Example VOLT OUTPut Program Message Unit Separator The separator semicolon separates the program message unit elements from one another in a program message Example VOLT 110 FREQ 120 lt PMT gt Program Message Terminator lt PMT gt A program message terminator represents the end of a program message Three permitted terminators are 1 END end or identify EOD 2 NL new line which is a single ASCII encoded byte 0A 10 decimals 3 NL END new line with EOI Note The response message is terminated by NL END for GPIB and NL for RS 232C Headers Data Root Specifier Message Terminator VOLT AMPL 100 RANG HIGH MEAS CURR NL Head Separator Query Header Message Unit Separators 5 6 Chroma 6460 6463 6490 User s Manual Figure 6 1 The Structure of Command Message 5 4 Traversal of the Command Tree Multiple program message unit elements can be sent in a p
12. as programmed at the load by automatically compensating the output voltage drop over the connecting cable The user has to set Remote Sense ON so as to enable this function Connect the sensing leads from the 1 2 3 and COM terminals on the remote sense to the load as shown in Figure 2 2 on the previous page Because the sensing leads carry only a few milliamperes the wires for sensing are much lighter than the load leads The sensing leads are part of the feedback path of the AC source so they must be kept at a low resistance in order to maintain the best performance Connect the sensing leads carefully so that they will not be open circuited If the sensing leads are left unconnected or become open circuited during operation the AC source will disable the output and display OPEN INT The sensing leads must be a twisted pair to minimize the pickup of external noise The sensing leads need to be connected to the load as close as possible The user must press over two seconds to reset the AC source 2 6 Chroma 6460 6463 6490 User s Manual 2 6 The Procedures of Power on WARNING Before turning on the instrument all protective earth terminals extension cords and devices connected to the instrument must be connected to a protective earth ground Any interruption in the protective earth grounding will cause a potential shock Apply the line power and turn on the power switch on the front
13. be lost and a query interrupt error will occur 5 3 Chroma 6460 6463 6490 User s Manual 5 3 1 Conventions Angle brackets lt gt Items in angle brackets are parameter abbreviations Vertical bar Vertical bar separates alternative parameters Square brackets Items in square brackets are optional For example OUTP STATe means that STATe may be omitted Braces Braces indicate the parameters that may be repeated The notation A B means that parameter A must be entered while parameter B may be ommited or entered once or more times 5 3 2 Numerical Data Formats All data programmed to or returned from the AC source are ASCII The data can be numerical or character string Numerical Data Formats Description It is a digit with no decimal point The decimal is 123 assumed to be at the right of the least significant digit It is a digit with a decimal point It is a digit with a decimal point and an exponent 5 3 3 Boolean Data Format The Boolean parameter lt Boolean gt takes only the form ONIOFF 5 3 4 Character Data Format The character strings returned by query command may take either of the following forms lt CRD gt Character Response Data character string with maximum length of 12 lt SRD gt String Response Data character string Chroma 6460 6463 6490 User s Manual 5 3 5 Basic Definition Command Tree Table The commands of the AC source are bas
14. coupled VOLTage RANGe 5 7 Chroma 6460 6463 6490 User s Manual 5 6 The Commands of the AC Source This subsection is going to talk about the syntax and parameters for all commands of the AC source Syntax Forms form Parameters Models entry the The examples given for each command are generic Definitions of syntax are in long form headers whereas only short headers appear in examples Most commands require a parameter and all queries return a parameter If a command is merely applied to specific models these models will be listed in the Model only entry If there is no Model only command will be applied to all models 5 6 1 Common Command Dictionary Common commands begin with a and consist of three letters and or one query Common commands and queries are listed alphabetically CLS ESE n 5 8 Clear status This command clears the following registers 1 Questionable Status Event 2 Status Byte 3 Error Queue Standard event status enabled This command programs the Standard Event register bits If one or more of the enabled events of the Standard Event register is set the ESB of Status Byte Register is set too Bit Configuration of Standard Event Stauts Enabled Register BitPosition 7 6 5 4 3 2 1 0 Bit Name CME DDE QYE OPC CME Command error DDE Device dependent error EXE Execution erro
15. or parallel The output is programmed in units of RMS volts For a sine wave the maximum AC voltage of ONE power stage that can be programmed is 300 V So for 6463 6490 the max Line to Line voltage is 519 Vrms in 3 phase mode and 300 Vrms in 1 phase mode For 6460 the max voltage is 300 Vrms in parallel mode 500 Vrms in series mode The set voltage that we program here is just for each power stage If we want to get 400 Vrms output of 6460 in series mode we have to program 200 V on the display For other waveforms the max voltage may be different When you turn on the AC source the state of default output is set in the Configure menu of Power on output status Set the output as V 135 2 Vrms F 50 0 Hz as follows 1 After you have powered on the AC source and accomplished the self test or exited from any other menu by pressing the LCD will display a main operational picture on the screen as follows on the next page Chroma 6460 6463 6490 User s Manual CHROMA programmable AC source Model V 0 0 F 60 0 Output relay OFF Output status PAUSE Output Measurements 0 05 V2 0 01 0 23 Display of Cursor The line where the cursor stays indicates that the AC source is waiting for the input of the voltage value 0 0 2 Input the value of V as 135 2 by pressing 1 i 2 to set voltage of 135 2 Vrms or using data entry in section 3 2 2 Vz135 2 F _ 60 00 3 Move the cursor to set frequ
16. panel No load shall be connected to the output terminal block The AC source will do a series of self tests every time the power switch is turned on After the routines of the self test are done the display will show an OK at the right side of each test item indicating that the item is no problem as follows CHROMA programmable AC source Model 6490 MODEL 64900000 VER 1 00 Self test IHECKSUM FAB6 1 2 KD3 ROM test OK OK RAMI test OK OK RAM2 test OK OK Waveform OK OK Frequency OK OK Status Check OK OK If any failure is detected on a certain item an NG will be shown at the right side of that item and the sound of beep will be heard It takes about eight seconds to complete the routines of the self test If no error is found the LCD will display as follows 2 7 Chroma 6460 6463 6490 User s Manual CHROMA programmable AC source Model 6490 300V O11 G CONFI Output relay OFF Output status PAUSE Output Measurements 0 05 0 01 12 0 23 P2 The following table shows all the error messages and recommended actions tem Description 4 RAMI RANZ test NG Battery back up Memory Press 0 simultaneously to test fails or memory is bad initialize memory Check NG hen W Consult your dealer for assistance ails amp NOTICE If you initialize memory all of the saved data may be initialized therefore you must check the saved data before doing
17. 0000000000000000000000000000000 o o 0000000000000000000000000000000000000 000000000000000000000000000000000000 o o 0000000000000000000000000000000000000 0000000000000000000000000000000000 a 9 9 9 o oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo oo 9009909009990 0000000000900000000909 0000000000000000000000000000000000 Figure 1 1 The Front Panel 1 5 Chroma 6460 6463 6490 User s Manual Table 1 1 The Description of the Front Panel Display The LCD is to display configuration output setup and measurement results Soft keys Five soft keys are located at the right side of the LCD Each of them gives a command as indicated on the corresponding command block on the LCD next to the soft keys to guide the user unless that block is blank Each valid soft key denotes the command string lying within the symbol of a soft key for exmdple CONFIG represents that the soft key next to command block CONFIG is for entering configuration Cursor moving keys These four keys are to move the cursor to different directions respectively In normal mode non editing mode pressing any of these four keys will change the place of the cursor In editing mode pressing or will move the cur
18. 1 2 The Description of the Rear Panel Item The label includes model number series number of the AC source and input ratings Printer Port The 25 pin D type female connector is for transferring measurement data to a parallel printer 1 2 3 5 1 external devices to and from the remote PC for remote operation source through this connector for remote operation Special I O The 25 pin D type male connector transfers control signals trigger remote inhibit and transient and 3 phase parallel operation signals 7 System I O Three BNC connectors are for 3 phase and parallel connectivity ouputConnectok This connector outputs power to the loading device Remote Sense It senses directly at the terminals of the load to eliminate any Connector voltage drop on the connecting cable Make sure of connecting 4 the terminal L of the remote sense connector to the terminal L of the load and the N to the N of the load Reverse polarity is not allowed 0 PowerLinein Power line input is connected to the AC source through this Connector connector 11 Cooling Fan Its speed automatically increases or decreases as temperature rises or falls Safety Cover It is to protect the user from being shocked 1 8 Chroma 6460 6463 6490 User s Manual 2 Installation 2 1 Inspection After unpacking the instrument please inspect any damage that may have occurred during the shipment Save all
19. B address which is set at 30 The address can be only changed from the front panel by pressing the soft key CONFIG in the Configure setting menu This menu is also used to select the RS 232C interface and specify the parameters of RS 232C such as baud rate and parity Set the GPIB address as follows 1 Press CONFIG to enter into the Configure setting menu Display of Cursor 2 Move the cursor to the line of GPIB address GPIB address 30 3 Enter the new address from the numeric keys such as j and the GPIB address will change to 5 GPIB address 5 5 1 Chroma 6460 6463 6490 User s Manual Set the RS 232C interface as follows 1 Press CONFIG to enter into the Configure setting menu 2 Move the cursor to RS 232C parameters of baud rate Baudrate 4800 ParityzEVEN 3 Select baud rate by pressing A or v key then press 4 Move the cursor to the line of parity and select parity as you select baud rate 5 1 2 Wire Connection of RS 232C The AC source is shipped with the baud rate which is set at 9600 and with parity which is set as None For RS 232C interface only the signals of TxD RxD DTR and CTS are used for its transfer of data The RS 232C connector is a 9 pin D subminiature female connector The following table describes the pins and signals of RS 232C connector Nocomeion INPUT OUTPUT 7 INPUT OUTPUT Loo o Novconnection Interconnection betwee
20. Chroma 6460 6463 6490 User s Manual Appendix Pin Assignment of User Interface 25 Pin D Type Male Connector GND 14 SytemUsd GND I5 SytmUed GND 16 SystemUsed System Used SystemUsed 19 SystemUsed o SytmUsd 21 SyemUed 2 Remoteinhibit o o mE Bus 1 op 24 TRANS 13 systemused Schulz Y Electronic Professional Power Supplies
21. D A power stage is through O board relays in parallel or series control to obtain more current and higher voltage A board is identified as CPU The CPU of the AC source is used to perform remote control through GPIB RS 232C or EXT VREF interface on Optional board to control output frequency and voltage through BS and C boards to measure voltage current and power through BM board to display message to scan front panel key through LCD module and K board and to monitor all interrupts BM board is identified as measurement unit All measurement functions are done here BS board is identified as waveform generator It generates output waveforms which act as the reference input of C board C board is identified as controller of DC to AC H board It controls DC to AC power stage in order to get low distorted waveform output K board is identified as keyboard which includes RPG Rotary Pulse Generator It is an interface between the user and the instrument when the latter is used in local operation Chroma 6460 6463 6490 User s Manual Extended and Optional boards are identified as input output signals which include GPIB RS 232C EXT VERF printer and other I O control signals Optional board is on Extended board MI board is identified as mother board which includes system power supply fan control circuit and interconnection of A BM BS C boards M2 board is simply an interconnection of M1 Extended and O boards C
22. LOW Set output voltage range This command sets the output voltage range of the AC source HIGH sets the AC source at 300V high range LOW sets the AC source at 150V low range SOURcCe CURRent LEVel IMMediate AMPLitude n Set the rms current limit SOURce CURRent LEVel IMMediate AMPLitude lt NR2 gt Query syntax CURRent LEVel IMMediate AMPLitude Parameter 0 00 to 100 00 Return parameters NR2 This command sets the rms current limit of the AC source for software protection The unit is 0 01 ampere SOURcCe VOLTage LEVel IMMediate AMPLitude n Set the rms voltage amplitude SOURce VOLTage LEVel IMMediate AMPLitude NR2 Query syntax VOL Tage LEVel IMMediate AMPLitude Return parameters NR2 5 13 Chroma 6460 6463 6490 User s Manual This command sets the rms output voltage level of the AC source SYSTem ERRor Query the error string Response error string No Error Data Format Error Data Range Error Too Many Errors Execution Error TRACe DATA DATA lt US1 US6 gt lt D1 D2 gt Assign value to a waveform SYSTem LOCal This command can only be used under the control of RS 232C If SYST LOC is programmed the AC source will be set in the LOCAL state and the front panel will work SYSTem REMote This command can only be used under the control of RS 232C If SYST REM is progr
23. MC EN55011 1991 Group I Class A EN60555 2 1987 EN60555 3 1987 EN50082 1 1992 TEC 801 2 1991 8 kV AD 4kV CD IEC 801 3 1984 3 V m IEC 801 4 1988 0 5 kV Signal Lines kV Power Lines For safety requirement the following standard was applied Safety EN 61010 1 1993 A2 1995 Rave 2 i NE A d eis Taiwan May 1998 procol e i E M E n Place Date Neng Sying Lee Vi e President Engineering Warning This is a class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures SAFETY SUMMARY The following general safety precautions must be observed during all phases of operation service and repair of this instrument Failure to comply with these precautions or specific WARNINGS given elsewhere in this manual will violate safety standards of design manufacture and intended use of the instrument Chroma assumes no liability for the customer s failure to comply with these requirements BEFORE APPLYING POWER Verify that the product is set to match with the line voltage PROTECTIVE GROUNDING Make sure to connect the protective grounding to prevent an electric shock before turning on the power NECESSITY OF PROTECTIVE GROUNDING Never cut off the internal or external protective grounding wire or disconnect the wiring of protective grounding terminal Doing so will cause a potential shock hazard tha
24. User s Manual FETCh SCALar CURRent AC MEASure SCALar CURRent AC Return parameters NR2 These queries return the rms current which is being output at the output terminal FETCh SCALar CURRent CREStfactor MEASure SCALar CURRent CREStfactor Return parameters NR2 These queries return the output current crest factor It is the ratio of peak output current to rms output current FETCh MEASure SCALar FREQuency Query the output frequency FETCh SCALar FREQuency MEASure SCALar FREQuency Return parameters lt NR2 gt These queries return the output frequency in Hertz FETCh MEASure SCALar POWer AC REAL 7 Query real power PFACtor Query power factor TOTal Query total power FETCh SCALar POWer AC REAL MEASure SCALar POWer AC REAL Return parameters lt NR2 gt These queries return the true power which is being output at output terminals in watts FETCh SCALar POWer AC PFACtor Chroma 6460 6463 6490 User s Manual MEASure SCALar POWer AC PFACtor Return parameters lt NR2 gt These queries return the power factor which is being output at output terminals Power factor is computed as PF TRUE POWER APPARENT POWER FETCh SCALar POWer TOTal MEASure SCALar POWer AC TOTal Return parameters NR2 Model 6460 6463 6490 only These queri
25. Warranty All Chroma instruments are warranted against defects in material and workmanship for a period of one year after date of shipment Chroma agrees to repair or replace any assembly or component found to be defective under normal use during this period Chroma s obligation under this warranty is limited solely to repairing any such instrument which in Chroma s sole opinion proves to be defective within the scope of the warranty when returned to the factory or to an authorized service center Transportation to the factory or service center is to be prepaid by the purchaser Shipment should not be made without prior authorization by Chroma This warranty does not apply to any products repaired or altered by persons not authorized by Chroma or not in accordance with instructions furnished by Chroma If the instrument is defective as a result of misuse improper repair or abnormal conditions or operations repairs will be billed at cost Chroma assumes no responsibility for its product being used in a hazardous or dangerous manner either alone or in conjunction with other equipment High voltage used in some instruments may be dangerous if misused Special disclaimers apply to these instruments Chroma assumes no liability for secondary charges or consequential damages and in any event Chroma s liability for breach of warranty under any contract or otherwise shall not exceed the purchase price of the specific instrument shipped and against w
26. ammed the AC source will be set in the REMOTE state and the front panel will be disabled except the Local key SYSTem RWLock This command can only be used under the control of RS 232C If SYST RWL is programmed the AC source will be set in the Remote Lockout state and front panel will be disabled without exception 5 7 Command Summary Common Commands CLS Clear status ESE lt n gt Standard event status enable ESE Return standard event status enable IDN Return the AC source identification RLC lt n gt Recall the AC source file SAV lt n gt Save the AC source status Instrument Commands FETCh MEASure SCALar CURRent AC CREStfactor FETCh MEASure SCALar FREQuency FETCh MEASure SCALar POWer AC REAL 7 PFACtor TOTal FETCh MEASure SCALar VOLTage AC INSTrument COUPle ALL NONE NSElect lt n gt SELect lt OUTPut gt ORELay ONI OFF OUTPut STATe bool PROTection CLEar DELay n RANGe HIGH LOW AUTO SOURcCe CURRent LEVel IMMediate AMPLitude n SOURcCe FREQuency CW IMMediate n SOURcCe VOLTage LEVel IMMediate Chroma 6460 6463 6490 User s Manual 5 15 Chroma 6460 6463 6490 User s Manual AMPLitude n SYSTem ERRor IMMediate SYSTem VERSion LOCal REMote RWLock Chroma 6460 6463 6490 User s Manual 5 17
27. ce Model F 60 00 Output relay OFF Output status PAUSE Output Measurements 0 05 60 00 0 35 When the output parameters for measurement are more than three the LCD will display in normal characters The procedures for selecting the measurement functions are described below 1 Enter into the measurement display menu by pressing the soft key DISP in the main operation menu The LCD displays as follows CHROMA programmable AC source Model MEASUREMENT DISPLAY 00 00 21 ode continuous S9232253599 op It is the default setting from the factory for all the measurement items 2 Display the readings in a continuous way or display a single measurement per 3 17 Chroma 6460 6463 6490 User s Manual trigger by turning rotary knob or pressing a or v key Leave continuous unchanged Note If the user selects single he may use TRIG for measurement by manual trigger 3 Move the cursor to the first display item Number 1 in front of V means the display LV position of measurement function 4 Turn the rotary knob clockwise or press A and the measurement functions will change one by one in the following order V P Iz CF gt PF gt F Ptot gt empty gt return to V Note 1 Turn the rotary knob counterclockwise or press v the item will appear in re Note 2 The option empty means that nothing is displayed for a corresponding item
28. ds are sent to all output phases This command affects set voltage and queries Measurement data For example if INST COUP ALL and INST NSEL 2 and Meas V are programmed the AC source will return 22 s measured voltage INST NSEL selects phase by its number and INST SEL refers to it by its name ORELay Set output relay on closed or off open This command sets output relay on off ON sets the output relay of the AC source on closed OFF sets the output relay of the AC source off open OUT Put STATe bool Enable disable the output of the AC source PROTection CLEar Reset protection status DELay n Set the delay time of protection OUTPut STATe ON OFF Query syntax OUTPut Return parameters ON I OFF This command enables or disables the output of the AC source Disable output is to set an output voltage amplitude at 0 Volt OUTPut PROTection CLEar This command clears the latch that disables the output when an overcurrent OC Chroma 6460 6463 6490 User s Manual overtemperature OT overpower OP or remote inhibit RI is detected All conditions which have generated the fault must be removed before the latch is cleared OUTPut PROTection DELay NR2 Query syntax OUTPut PROTection DELay Parameter 0 0 to 100 0 Return parameters NR2 This command sets delay time when software protection occurs The time unit is 0 1 second RANGe HIGHI
29. e ssscccsssssccssssscsssscccessscccsssccccesssccccsscccsensccscssseccccsssaccscsssseseess 5 8 5 6 1 Common Command Dictionary cc eecsescssssecssecseesecneecceseeeessecaeesecnesseceaeencsaecaeesesaeeseenaeeeeeas 5 8 5 6 2 Instrument Command Dictionary esee nennen eene daia eisein rennen enne nre teens 5 9 5 7 Command Summary 5 14 APPENDIX PIN ASSIGNMENT OF USER INTERFACE eee 1 Chroma 6460 6463 6490 User s Manual 4 Theory of Operation 4 1 General Information The AC source consists of two 6460 or three 6463 6490 power stages and each stage has 13 print circuit boards and other components Each of the PCBs has its specific function that will be described in the following subsection 4 2 Description of Overall System Figure 4 1 on page 4 3 shows the overall system of each power stage Main power flows through the A D D D D A power stage converter The A D power stage is designated as I board and generates DC voltage from the line input The DC voltage of A D output is applied to the input of D D power stage The G board of D D stage takes power from the A D output It generates two isolated DC outputs for D A power stage The H board of D A inverter generates AC output through full bridge controlled by C board to O board The
30. ed on a hierarchical structure also known as a tree system In order to obtain a particular command the full path to that command must be specified This path is represented in the table by placing the highest node in the farthest left position of the hierarchy Lower nodes in the hierarchy are indented in the position to the right below the parent node Program Headers Program headers are key words that identify the command They follow the syntax described in subsection 7 6 of IEEE 488 2 The AC source accepts characters in both upper and lower case without distinguishing the difference Program headers consist of two distinctive types common command headers and instrument controlled headers Common Command and Query Headers The syntax of common command and query headers is described in IEEE 488 2 Itis used together with the IEEE 488 2 defined common commands and queries The commands with a leading are common commands Instrument Controlled Headers Instrument controlled headers are used for all other instrument commands Each of them has a long form and a short form The AC source only accepts the exact short and long forms A special notation will be taken to differentiate the short form header from the long one of the same header in this subsection The short form of the header are shown in characters of upper case whereas the rest of the header are shown in those of lower case Program Header Separator If
31. ency by inputting the value of F as 50 Hz and pressing 0 V 135 2 F ENTER CA NOTICE Voltage ranges from 0 to 300 V in step of 0 1 V Frequency ranges from 45 to 1000 Hz in step of 0 01 0 1Hz 3 5 Chroma 6460 6463 6490 User s Manual 3 2 3 2 The Setting of Output Relay There is a relay on the output of the AC source for the connection with a load When output relay is ON it means that the output relay is closed in spite that the output status of the AC source is in mode When output relay is OFF it means that the output relay is closed only as the output status is in mode If the output status is if QUIT mode the output relay will be open To set the output relay as ON as follows 1 Move the cursor to the command of output relay Output relay OFF 2 Press a ENTER to set output relay ON A click sound will be produced from the AC source when output relay is activated Output relay ON 3 2 3 3 The Output Status There are two status of output One is PAUSE and another is RUN PAUSE It means the output of the AC source is inactive RUN _ It means the output of the AC source is active according to the user s set parameters 3 2 3 4 The Programming of 3 Phase Unbalanced Voltage Only for the 3 phase mode in 6463 and 6490 you can program the 3 phase output with different voltage 1 Move the cursor to the command of phase select phase select Z1 2 Pres
32. es 1 1 1 1 Introduction sssicssesscscssasecsescessvssssssevsccsosessesssbusteosevecessesbesiesvevenssecstesieseadessuvensesbescossbsssedecdeseodeveesesbestoss 1 1 1 2 D sc iption 1 1 L3 Key 1 1 IE M 1 2 1 5 Names of Parts siscsissciecscsovscssscossscsssccsessesbessvssscosstecsosestessiestoossbecsesesbseseseusecseescebsesssossucdsscossetecssseedees 1 5 1551 The Front Patiel REDI RUND RE ERIE i 1 5 1 52 Th Rear P nel eee hee 1 7 2 INSTALLATION a nav ao eU a auda dva nav da Cua 2 1 M M 2 1 2 2 Preparation for the Use essees saapi setas ense ease 0 tasa 2 1 2 3 Requirements of Input Power 2 1 2 3 1 Rati gs oo Ob RR aie Amen bm MRA EA ae ants 2 1 2 3 2 Input CONMECH OM i ion Rt her he ee ek es bees e v Peto 2 2 2 4 2 3 2 5 Remote Sense Connection cccssssscssssscccssssccccssscccsssscccesssecccsssccccssssccsessssccccssccscsssececcssseccecssssecess 2 6 2 6 The Procedures of Power on 4 eere eee eere ee eee to e eee to eese en ne eese enses eaae see esse es ee eto aee seen Osea 2 7 3 LOCAL OPERATION cccccscccsecccsecceeeceeseeeeeeeeeueeeneee
33. es return the total true power which is being output at output terminals in watts FETCh MEASure SCALar VOLTage AC Query the output voltage Return parameters lt NR2 gt FETCh SCALar VOLTage AC MEASure SCALar VOLTage AC These queries return the ac rms voltage which is being output at the output terminals INSTrument COUPIe ALL NONE Set coupled phases for programming NSELect n Select output phase to program SELect lt OUTPut gt Model 6463 6490 only INSTrument COUPIe ALL NONE Query syntax INSTrument COUPle Return parameters ALL NONE In a multi phase power source it is convenient to set parameters of all phases simultaneously with one programmed command When INST COUP ALL command is programmed a command will be sent to the AC source and to all phases in the end Chroma 6460 6463 6490 User s Manual INST COUP NONE command cancels COUP ALL command This command only affects set voltage This command has no effect on queries and can set parameters only INSTrument NSELect 1 213 INSTrument SELect OUTPut1l OUTPut2 OUTPut3 Query syntax INSTrument NSELect Return parameters 1I 213 This command sets individual outputs in a multi phase model for subsequent commands or queries If INST COUP NONE is programmed the phase selective commands are sent to the particular output phase set by INSTrument NSELect command If INST COUP ALL is programmed all comman
34. g Recalling ine ep eg Dg ORE Eee 3 14 3 2 5 6 The ae a tute tmt eee 3 15 3 3 3 15 3 3 1 The Execution of Output eed e ieee bese eMe ete RR ae ety 3 15 A 3 16 3 4 1 The Selection of Measurement Items esssssssssssesee eene enne 3 16 3 4 2 Measurement Functions nonien aceite eee am e Pe ente c bier 3 18 3 5P i 3 19 Zl id LA Chroma 6460 6463 6490 User s Manual 1 General Information 1 1 Introduction This manual describes five major things of the Chroma 6460 6463 6490 programmable ac source They are specifications installation instructions on operation and theory of operation In the manual the term AC source is applied to the Chroma 6460 6463 6490 programmable ac source 1 2 Description The series of AC source is a high efficiency programmable ac power source which is capable of simulating a wide variety of AC line conditions and accurate measurement of power The microprocessor controlled waveform oscillator generates accurate stable output voltage and frequency The PWM design of power stage allows for full volt ampere into loads The front panel has both RPG rotary pulse generator and keypad controls for setting the output voltage and frequency The LCD provides a complete operating state of the unit to the user
35. han or equal to the maximum current rating of the AC source CAUTION There are two different input voltage rating models One is 380 3 phases 5 wires Y and another is 220 Vi 3 phases 4 wires A Be careful to verify that what kind of the model you have and make sure that the main voltage is correct for the model See figure 2 1 on the next page and do the following things one by one Remove the safety cover from the back downside of the AC source 2 Open the line clamp on the safety cover and screw the power cord to the instrument through the cable gland 3 Position the power cord and tighten the cable gland to secure the clamp Connect the ac lines to the terminal blocks of the AC source as figure 2 1 5 If you need to connect the load to the AC source please refer to section 2 4 for output connection 6 Slip the safety cover over the ac input terminal strip and secure the cover with two SCrews WARNING To protect the operators the wire connected to the GND terminal must be connected to the earth ground Under no circumstances shall this AC source be operated without an adequate ground connection Installation of the power cord must be done by a professional and in accordance with local electrical codes Chroma 6460 6463 6490 User s Manual INPUT L1 L2 L3 N GND 220 3 MODEL A Figure 2 1 a 6460 6463 6490 220 3 A Input Connection INPUT L1 L2 L3 N GND
36. hich a claim is made Any recommendations made by Chroma for use of its products are based upon tests believed to be reliable but Chroma makes no warranty of the results to be obtained This warranty is in lieu of all other warranties expressed or implied and no representative or person is authorized to represent or assume for Chroma any liability in connection with the sale of our products other than set forth herein CHROMA ATE INC 43 Wu Chuan Road Wu Ku Schulz W Electronic Industrial Park Taipei Taiwan EU E Schulz Electronic GmbH Tel 886 2 2298 3855 Dr Rudolf Eberle StraBe 2 D 76534 Baden Baden Fax 886 2 2298 3596 Fon 49 7223 9636 0 Fax 49 7223 9636 90 www http www chromaate com d vertrieb schulz electronic de E mail chroma serv chroma com tw www schulz electronic de CE Conformity Declaration For the following equipment Product Name Programmable AC Source Model Name 6460 6463 6490 Manufacturer s Name Chroma ATE Inc Manufacturer s Address 43 Wu Chuan Road Wu Ku Industrial Park Wu Ku Taipei Hsien Taiwan is herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Laws of the Member States Relating to Electromagnetic Compatibility 89 336 EEC and electrical equipment designed for use within certain voltage limits 73 23 EEC 93 68 EEC For electromagnetic compatibility the following standards were applied E
37. hroma 6460 6463 6490 User s Manual IBLIS Jomo YOR Jo WeIseIq Jorg p ANSIA Prog Wd prog v prog wx prog Sd osuog 310119 sng sng sng nding 033009 JOsqUOD onuo sng 79 eyed 29 rq 7 zq Ajddns tomod Ea wuejs S sng enuo 2 aq sng sng v0 sn i prog ZA Va ED TEISE 93403 geq p pu ixq eq euondo WA WA IA sjeusig ns aid FWA d TA 4 3 Chroma 6460 6463 6490 User s Manual Power stage Sync Clock Vref System I O Power stage L N Power stage 6463 For 6490 Controller 6463 ee OUTPUT 6460 6490 series 3 or 380ViLL Y parallel 1o Figure 4 2 System Block Diagram 4 4 Chroma 6460 6463 6490 User s Manual 5 Remote Operation 5 1 General Information The AC source can be controlled remotely through the GPIB or the RS 232C port The GPIB port is mostly used but the RS 232C port is helpful too Technically speaking the GPIB interface is quite different from the RS 232C interface The GPIB interface is an 8 bit parallel data bus owning a host of bus commands for synchronization and up to one Megabyte transfer rate The RS 232C interface a series bus with a few handshake lines for synchronization is less capable so its requirement is not so much and the user can write a simple program to do basic remote control easily 5 1 1 Setting the GPIB Address and RS 232C Parameters The AC source is shipped with the GPI
38. i is the sum of the power of all phases P P2 P3 Lc ch is the measurement readings of Current in Amperes ture RMS measurement 3 5 Protection The AC source provides protection for software and hardware Protection for software is listed below Voltage Range Error During the operation of the AC source this message will be displayed when the set voltage is beyond the full scale of the current voltage range Protection for hardware is listed on the next page too 3 19 Chroma 6460 6463 6490 User s Manual PFO INT It is power failure protection and means that the voltage of the power supply is lower than specification FAN INT It is fan failure protection and means that the cooling fan malfunctions OPP INT It is over power protection and means that the output stage is over the power specification OCP INT It is over current protection and means that the output stage is over the current specification shorted power supply is lower than specification internal temperature of the AC source is too high OPEN INT dV INT The protection happens when there is a large difference between the set voltage and the measured one If any output protection mentioned above is triggered to hold normal output please remove the errors then press ENTER and hold the key for two seconds to unlock the output protection so as to resume the normal operation 3 20 Table of Contents 4 THEORY OF OPERATION
39. k OFF Buzzer 2 Press a ENTER to change the option from OFF to ON Data lock ON Buzzer The user must select OFF to unlock 3 2 5 3 The Setup of Buzzer The buzzer of the AC source beeps when the user presses the keypad on the front panel or turns the PRG knob If the user does not need it he can turn if off To turn off the buzzer as follows 1 Move the cursor to the command line of Buzzer Datalock off Buzzer O 2 Press a ENTER to change the option from ON to OFF Datalock off Buzzer OF 3 2 5 4 Protection Limitation of output RMS current output voltage and delay time are the parameters for triggering overload protection The discussion of protection limitation in this subsection is about user programmable protection not hardware protection The procedures for setting Current limit 20A Delay time 1 sec and Voltage limit 250V are described below 1 Move the cursor to the command line f 3 13 Chroma 6460 6463 6490 User s Manual of Current limit Current limit 15 00 2 Press 0 to change the value to 20 00 Current limit 20 00 3 The cursor moves to the command line of delay time automatically delay time _0 0 sec 4 Press 1 to change the value to 1 0 delay time 1 0 sec 5 The cursor moves to the command line of Voltage limit automatically Voltage limit 150 0 6 Press 2 to change the
40. methods including the turning of rotary knob and the pressing of a or v are invalid when the user tries to program a memory group to be Saved or Recalled 2 The AC source provides three memory groups 0 1 and 2 The memory group 0 keeps power on defaults The setups saved into the memory group 0 will be recalled automatically when the AC source is powered on again while those saved into other memory groups must be recalled manually 3 2 4 6 The Recalling To recall the system data as follows 1 Press RECAL and the LCD displays Recall from group 0 3 10 Chroma 6460 6463 6490 User s Manual as right 2 Press the numeric keypad to select a desired memory group 3 Press ENTER to confirm it 3 2 4 7 More Press the soft key of to enter into another display to select output phase and the waveform 3 2 4 7 1 The Selection of Phase Status In 6460 there are two modes parallel and series for choice In 6463 6490 there are two modes one phase and three phase for choice too If you choose three phase and press ENTER there will be 222120 0 3 240 0 appearing at the downside of the display They are the phase shift of 22 and 23 reference to l and can be programmed as you like Note You can easily verify the mode you are using from the headline of the output main menu 213 series mode for 6460 and 3 phase mode for 6463 6490 211 parallel
41. n the computer compatible with IBM PC and the AC source is NUN E EN HEN illustrated below Chroma 6460 6463 6490 User s Manual IBM PC AC source 1 DCD X 2 Rx lt 2 Tx 3 Tx 3 Rx 4 DTR gt 7 CTS 5 GND 5 GND 6 DSR X 7 RTS X 8 CTS 6 DTR 9 RI X DTR of the AC source is inactive if receivers buffer is full It means that the AC source will not receive any data until DTR is active Similarly if CTS of the AC source is inactive data will not be sent to the computer 5 2 The GPIB Capability of the AC Source GPIB Capability Talker Listener Commands and response messages can be sent and AHI SH1 T6 LA received over the GPIB bus Status information can be read using a series poll enabled service request condition Remote Local The AC source powers up in local state In local state the front panel is operative and the AC source responds to the commands from GPIB In remote state all front panel keys except the local key are disabled Press local key to return the AC source to local state Local key can be disabled using local lockout so that only the controller or the power switch can return the AC source to local mode 5 3 Introduction to Programming All commands and response messages are transferred in form of ASCII codes The response messages must be read completely before a new command is sent otherwise the remaining response messages will
42. nueeceeeeeeeeneeeeeeeeeeseneeseees 3 1 3 T Introduction DENE SENERE SEERE NESS 3 1 3 2 Operation through Keypad 4 eere 3 1 23 2 T IntrodUcti Onczz cic ERR aerae avec Ne ave E 3 1 32 2 Data Entry ie a e ee pe eg ee hera eres 3 2 3 23 Output Setting ote to ede e eti e fe nite eed edes 3 3 3 2 3 1 Setting Output Voltage and Frequency eese rennen enne rennen 3 4 3 2 3 2 The Setting of Output Relay eese enne nennen trente trennen 3 6 3 2 3 3 The Output Status eR ae Ae eran See eee 3 6 3 2 3 4 The Programming of 3 Phase Unbalanced Voltage sene 3 6 3 7 3 24 1 Remote SENSE ish sb 3 7 3 2 4 2 External Reference te ede e Heath teen 3 8 3 2 4 3 GPIB Addres8 rte egen EE N EER E EE 3 9 3244 The Setup of RS2232C a ire IRR pr reete eate oe netter e nee tens 3 9 3 2 4 5 The Savin ii ses ep eR RU tee i ROO ERE UT ERE Peer 3 10 3 2 4 6 The Recallmg une ceo en PO a te 3 10 324 7 MOI iuh eta mot A Ah RR RE 3 11 3 2 5 The Setting of Setup idee eed ett used eu 3 11 3 2 5 1 The Output Range cm eta pod t etit pr HE ete ie EI ORE 3 12 3 2252 The Data Lock iss 3 eene Pb 3 12 3 2 5 3 The Setup of ssp sensor tote are e Rens U RR RD ok erne T Ea E eE 3 13 32 e re else b o dg o 3 13 3 2 5 5 The Savin
43. packing materials in case the instrument has to be returned one day If any damage is found please file a claim with the carrier immediately Do not return the instrument to the factory without obtaining the prior RMA acceptance from Chroma 2 2 Preparation for the Use In the beginning the instrument must be connected with an appropriate AC line input Then since it is intelligently cooled by fans it must be installed in sufficient space for circulation of air It should be used in an area where the ambient temperature does not exceed 40 C Before connecting input output cable the user must remove the safety cover mounted on the rear downside panel first Then he has to refer to sections 2 3 2 2 4 and 2 5 for corresponding cable connection After completion of the connection he should mount the safety cover on the rear panel again 2 3 Requirements of Input Power 2 3 1 Ratings Input Voltage Range 190 250 Vii 3 phases 4 wires A or 329 353 V1 3 phases 5 wires Y Input Frequency 47 63 Hz Max Current 6460 6490 23 A 6463 16A Caution The AC source will be damaged if it is operated at an input voltage that is outside its configured input range 2 1 Chroma 6460 6463 6490 User s Manual 2 3 2 Input Connection The input terminal block is located on the rear downside panel of the instrument The power cord must be rated at least for 85 C The power line input must have a current rating which is greater t
44. r OPC Operation complete PON Power on QYE Query error Chroma 6460 6463 6490 User s Manual ESE Return standard event status enabled The query reads the Standard Event Status Event register Reading of the register clears it The bits of configuration is the same as Standard Event Status Enabled Register IDN Return the AC source identification Return Parameter Chroma ATE 6490 1234 2 01 Chroma ATE Company name 6490 Model name 1234 Serial number 2 01 Firmware version number RCL lt n gt Restore the values of the specific group which is previously stored in memory Parameter 0 2 SAV lt n gt Save the values into the specific group in memory Parameter 0 2 5 6 2 Instrument Command Dictionary The commands are listed in alphabetical order Commands followed by question marks take only the query forms When commands take both the command and query forms they are noted in the syntax descriptions FETCh MEASure SCALar CURRent AC Query AC rms current CREStfactor Query current crest factor This command lets the user get measurement data from the AC source Two measurement commands are available MEASure and FETCh MEASure triggers the acquisition of new data before returning data FETCh returns the previously acquired data from measurement buffer Individual outputs of a multi phase source are specified by the setting of INSTrument NSELect command 5 9 Chroma 6460 6463 6490
45. re is no remote sense function 2 Befor choosing ON for enabling the function of remote sense the remote sensing leads must be connected to the load see 2 5 otherwise the AC source will detect the error and stop output 3 2 4 2 External Reference The AC source allows the user to make use of the controlled signal from external devices for the setting of its output The BNC connector of the external reference on the rear panel lets the user apply DC signal to the AC source for the setting of output voltage The output voltage Vout responses linearly proportional to the controlled DC level with voltage ranging from 0 to 10 V Vout can be calculated using the following formula Vout Vcontrol 10 V x V range To set Vout to 60Vrms 1 Select range 300V in setup menu apply external DC 2V and Vout 60Vrms 2 Select range 150V in setup menu apply external DC 4V and Vout 60Vrms The procedures of setup are shown below 1 Move the cursor to the command of External ref External ref OFF 2 Press a ENTER to change the option from OFF to ON External ref ON When external ref is set as ON the output voltage Vout will respond to the external control DC voltage level The user cannot control Vout amplitude Chroma 6460 6463 6490 User s Manual through the keypad on the front panel until external ref is set as OFF again However he can still program and output other parameters 3
46. rogram message The first command is always referred to the root node Subsequent commands are referred to the same tree level as the previous command in a program message A colon preceding a program message unit changes the header path to the root level Example OUTPut PROTection DELAY 1 All colons are header separators OUTPut PROTection DELAY 1 Only the first colon is a specific root OUTPut PROTection DELAY 1 VOLT 100 Only the third colon is a specific root 5 5 Execution Order The AC source executes program messages by the order received Program message units except coupled commands are executed in order of reception The execution of coupled commands is deferred until program message terminator is received A coupled command sets parameters which are affected by the setting of other commands Problems may arise because the prior state of the AC source will affect the response of a coupled parameter to its programming For example assume that the current output voltage range is LOW a new state is desired with output voltage range HIGH and amplify 220 Volt If the commands VOLTage 220 lt PMT gt RANGe HIGH lt PMT gt are sent data out of range error will be produced Such kind of error can be avoided by reversing the order or sending the commands in one program message For the above example the program message VOLTage 220 RANGe HIGH lt PMT gt can be sent without error The following commands are
47. s a or v to set Z1 and press ENTER 3 Set the voltage for 21 4 Repeat 1 2 3 for 22 and 23 with the set voltage you desire Then press you will get the different voltage as 3 6 Chroma 6460 6463 6490 User s Manual you program at the output 5 If you choose 214 22 23 the programmed voltage will be for all three phases 3 2 4 The Setting of Configuration The AC source provides the user with a lot of useful features such as Remote sensing External reference etc To use these powerful features the user must program relevant parameters according to the needs of application using the configuration setup Press the soft key CONF the LCD displays the following picture CHROMA programmable AC source Model 6490 Configure setting External ref Remote sense OFF MORE GPIB address 30 SAVE RS232C Baudrate 9600 parity NONE RECALL QUIT 3 2 4 1 Remote Sense Remote sensing is to eliminate voltage drop on the connection cables from the output terminal of the AC source to that of the load For the details of wire connection please refer to section 2 5 The procedures of setup are shown below 1 Move the cursor to the command of Remote Sense Remote Sense ZOFF 2 Press a LENTER to change the option from OFF to ON Remote Sense ZON 3 7 Chroma 6460 6463 6490 User s Manual amp NOTICE 1 For 6460 in parallel mode and 6463 6490 in phase mode the
48. so 2 8 Chroma 6460 6463 6490 User s Manual 2 9 Chroma 6460 6463 6490 User s Manual 3 Local Operation 3 1 Introduction The AC source can be configured to operate in local or remote mode The operation in remote mode through a remote GPIB controller or RS 232C will be described in Section Six In this section the operation in local mode through the keypad on the front panel for data entry and test is going to be described The AC source is configured for local operation when it is turned on 3 2 Operation through Keypad 3 2 1 Introduction The AC source provides the user friendly programming interface using the keypad on the front panel to the user Each display of the LCD on the AC source which represents an operational menu is divided into three zones 1 Headline It displays characters in reverse video on the first row of the LCD This line provides information including current operation function output parameters and the total operation time after power on 2 Command zone The farthest right column of the LCD is divided into five blocks Each block represents a soft key for a minor function which can be executed by pressing the key next to it Hence all the command sets are structured as a command tree Each node of the command tree presents an operational menu Also on each node the LCD always provides the user with five choices to let him enter into other nodes or quit from the current node
49. sor from digit to digit for the programming of a parameter command key Pressing this key will make the user enter into or quit from editing mode while he is programming 5 command key Pressing this key will switch the control of the AC source from remote operation to operation throguh the keypad on the front panel Up and down keys Press A to search upward for the A and v desired programming parameter Press v to search downward MEI ror by pressing the digital keys and the decimal key mE key It is to confirm the setting of parameters UNI HULE the RPG to the desired ones FARER occae holes Udil ee power switch It is to power on or off 1 6 Chroma 6460 6463 6490 User s Manual 1 5 2 The Rear Panel e ourrur Pd SENSING SE NL N 7 7 A OUTPUT INTERNAL CONNECTION FROM output SYSTEM 1 0 8 COM N GND Re OR Se amp Te T SET i I 7 jo S LA od INTERNAL CONNECTION TO INPUT 11 ND 12 N2 13 Ifo Figure 1 2 The Rear Panel 1 7 Chroma 6460 6463 6490 User s Manual Table
50. t may bring injury to a person FUSES Only fuses with the required rated current voltage and specified type normal blow time delay etc can be used Do not use different fuses or short circuited fuseholders To do so might cause a shock or fire hazard DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE Do not operate the instrument in the presence of flammable gases or fumes DO NOT REMOVE THE COVER OF THE INSTRUMENT Operating personnel must not remove the cover of the instrument Component replacement and internal adjustment can be done only by qualified service personnel LETHAL VOLTAGES Ac sources can supply 707 V peak at their output DEATH on contact may result if the output terminals or circuits connected to the output are touched when power is applied SAFETY SYMBOLS DANGER High voltage Explanation To avoid injury death of personnel or damage to the instrument the operator must refer to an explanation in the instruction manual Protective grounding terminal To protect against electrical shock in case of afault This symbol indicates that the terminal must be connected to ground before operation of equipment A WARNING sign denotes a hazard It calls attention to a procedure WARNING practice condition or the like which may result in injury or death of personnel if it is not rightly observed Table of Contents 1 GENERAL INFORMATION 0 ccccsscccssseccnnsecensseecnsseeensseeenssenensesennessennsesen
51. value to 250 0 Voltage limit 250 0 NOTICE Delay time is valid for eliminating transient current spike which is useless in voltage protection Current limit ranges from 0 to 100 in step of 0 01 A Delay time ranges from 0 to 100 in step of 0 1 sec Voltage limit ranges from 0 to 300 in step of 0 1 V The output of the AC source will be disabled when protection is active and will remain so even the condition is released The user has to press ENTER for over two seconds to reset the AC source 3 2 5 5 The Saving Recalling Please refer to 3 2 4 5 and 3 2 4 6 for related information Chroma 6460 6463 6490 User s Manual 3 2 5 6 The SYSsetting This function is reserved for maintenance and factory testing only 3 3 Applications 3 3 1 The Execution of Output In the main operational menu of output the user can press the soft key to enable the execution of output When the user presses the LCD will change from Output status PAUSE to Output status RUN and the command string of the original RUN will change to PAUSE Push the soft key to disable output when output is in RUN The following example of LCD indicates the states when the user toggles the output between RUN and PAUSE by the soft key If the output is inactive the LCD will show as follows CHROMA programmable AC source Model OUTPUT SETTING 150V D11 V 110 0 CONFIG Output relay ON Output status PAUSE
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