N4AXX Series USER MANUAL
Contents
1. PROG button to open up program store recall mode 2 Select the action to be taken store recall or delete 3 Select the location that the associated action is to be recalled from stored to or deleted from there are 999 locations avallable NOTE Location 0 FACTORY DEFAULT and cannot be changed Location 1 Programs stored within program location 1 are automatically recalled when the instrument is switched on 4 Enter a name within this parameter to aid the user in relation to storing recalling a program to from memory for future reference To enter a name use the Alpha Numerical keypad on the instruments front panel 5 Upon implementing any of the above actions then remember to scroll down to EXECUTE and press ENTER to validate your selection action Page 42 N4Axx Series User Manual 7 Display Layout and Parameter adjustment The display default screen is as follows Direct Parameter Adjustment The Amplitude and Frequency settings can be adjusted directly without having to enter the menus The ADJUST settings can also be adjusted Press the HOME ESC menu control key The amplitude setting will now be highlighted by the cursor Use the Up and Down arrow keys to select the required parameter to be adjusted Use the numeric keypad to enter the new value and press the ENTER NEXT key Repeat this process to adjust other parameters if required Press the HOME ESCAPE key2. Na Newtons4th Ltd N4Axx Series Programmable AC Power Sources USER MANUAL OGRAMMABLE AC POWER SOUR NA 4 SSE STMT 000000000000000000000000000000000000000000000000001 NN esses n Version 1 01 04 August 2015 gt gt bP D N4Axx Series User Manual DANGER OF ELECTRIC SHOCK Only qualified personnel should install this equipment after reading and understanding this user manual If in doubt consult your supplier RISQUE D ELECTROCUTION L installation de cet quipement ne doit tre confi e qu a un personnel qualifi ayant lu et compris le pr sent manuel d utilisation Dans le doute s adresser au fournisseur GEFAHR VON ELEKTRI SCHEM SCHOCK Nur entsprechend ausgebildetes Personal ist berechtigt diese Ausr stung nach dem Lesen und Verst ndnis dieses Anwendungshandbuches zu installieren Falls Sie Zweifel haben sollten wenden Sie sich bitte an Ihren Lieferanten RISCHIO DI SCARICHE ELETTRI CHE Solo personale qualificato pu installare questo strumento dopo la lettura e la comprensione di questo manuale Se esistono dubbiconsultate il vostro rivenditore PELI GRO DE DESCARGA EL CTRI CA Solo personal cualificado debe instalar este instrumento despu s de la lectura y comprensi n de este manual de usuario En caso de duda consultar con su suministrador Page 1 N4Axx Series User Manual IMPORTANT SAFETY INSTRUCTIONS This product can generate lethal voltages Observe all safety inst
3. Page 19 N4Axx Series User Manual 4 2 Serial Poll status byte les ma ro SDV Rov bit 0 RDV result data available set when results are available to be read as enabled by DAVER bit 1 SDV bit 2 FDV bit 4 MAV bit 5 ESB sweep data available set when sweep results are available to be read as enabled by DAVER fast data available streaming set when data streaming results are available to be read as enabled by DAVER message available set when a message reply is waiting to be read standard event summary bit set if any bit in the standard event status register is set as well as the corresponding bit in the standard event status enable register set by TESE Page 20 N4Axx Series User Manual 4 3 RS232 connections The RS232 port on the N4A uses the same pinout as a standard 9 pin serial port on a PC or laptop 9 pin male D type Pin Function Direction 1 DCD in weak pull up 2 RX data In 3 TX data out 4 DTR out 5 GND 6 DSR not used 7 RTS out 8 CTS In 9 RI not used The N4A will only transmit when CTS pin 8 is asserted and can only receive if DCD pin 1 is asserted The N4A constantly asserts 12V DTR pin 4 so this pin can be connected to any unwanted modem control inputs to force operation without handshaking The N4A has a weak pull up on pin 1 as many null modem cables leave it open circuit In electrically noisy environments this pin should be driven or connecte
4. There are three types of data entry selection from a list numeric text Page 14 N4Axx Series User Manual 3 1 Numeric data entry Frequency and Voltage parameters are entered as real numbers Real numbers are entered using the number keys decimal point key or key if signed value is permitted When the character string has been entered pressing the ENTER key sets the parameter to the new value Until the ENTER key is pressed pressing the HOME key aborts the data entry and restores the original number If a data value is entered that is beyond the valid limits for that parameter then a warning is issued and the parameter set as close to the requested value as possible For example the maximum frequency of the N4A source is 10 KHz if a value of 15 KHz is entered a warning will be given and the frequency set to the maximum of 10 KHz When the parameter is first selected there is no character cursor visible in this condition a new number may be entered directly and will overwrite the existing number To edit a data value rather than overwrite it press the RIGHT ARROW key and a cursor will appear The cursor can be moved using the LEFT ARROW and RIGHT ARROW keys New characters are inserted at the cursor position as the keys are pressed or the character before the cursor position can be deleted with the DELETE key Data values are always shown in engineering notation to at least 5 digits 1 0000 999 99 and a mult
5. DC offset monitored at Generator Out PH1 will not be present at the output terminals with AC coupling only Amplitude adjust Manually enter a value by which the amplitude will increase decrease in relation to pressing the up and down arrows Frequency adjust Manually enter a value by which the frequency will increase decrease in relation to pressing the left and right arrows 6 6 Maintenance Information Maint MAINTENANCE This option will display the time since the last service For 3 phase instruments the time for each phase will be displayed Page 31 N4Axx Series User Manual 6 7 Harmonic mode HARM The Harmonic settings menu can be accessed through the HARM key HARMONIC Use the Up or Down arrow keys to highlight press ENTER here to turn on HARMONIC Press the Enter Next key to activate Harmonics mode and display the Harmonics options menu Page 32 N4Axx Series User Manual HARMONIC The harmonics menu then allows harmonic order waveform type and harmonic amplitude to be set Harmonic order can be set between 1 and 100 The waveform type can be selected from the list of options in the screen shot below Harmonic Amplitude can be set between 0 000Vrms and 300 0V rms HARMONIC When harmonic tests have been completed press the PH1 key and change the mode option back to Single component to turn harmonics off Page 33 N4Axx Series User Manual 6 8 Alarm Th
6. and frequency can be selected Schedule mode allowing Setting of start time stop time amplitude frequency and output setting after test completion Multiple tests can be scheduled and re scheduled at any time Count down until start of the next scheduled test Test settings displayed along with test time remaining The next test can be started immediately Present test can be stopped at any time Page 54 N4Axx Series User Manual Appendix D N4A Communications Commands Amplifier output voltage Set channel 1 voltage Amplitude chx value Notes Chx is the output channel la 1b 2a 2b 3a 3b Value is the required voltage and can be between 0 300 Example Amplitude ch1 240 Note a outputs are the standard outputs b outputs only need to be set when setting the harmonic outputs Amplifier frequency Set frequency to xxHz Frequency value Notes Value is the required frequency value example 50Hz Frequency 50 Amplifier output control Output ON output on Output OFF output off Communications mode USB Comms interface comms USB RS232 comms interface comms RS232 LAN comms interface comms LAN Page 55 N4Axx Series User Manual Amplifier wiring sense configuration Sense Off amplifier sense nosens Sense On 2 Wire amplifier sense wire2 Sense On 4 Wire amplifier sense wire4 Amplifier coupling Configuration Coupling AC Only amplifier couple ac Coupling AC DC amplifier couple a
7. be sent to the N4A can be stored in a script file and executed automatically The script file is created with any text editor and includes three types of lines interpreted by the first character on each line lines beginning with are sent to the N4A lines beginning with are commands for CommView2 any other line is a comment The commands that are recognised beep sound the beeper on the PC label i string apply a label to data valuel pause t wait for time t reply t wait time t for a reply For an example script file look at example scr on the CommView2 release disc Other functions in CommView2 save results results menu set COM port parameters configure menu firmware upgrade instrument menu read store user programs instrument menu Page 53 N4Axx Series User Manual Appendix C N4ASoft PC Software The N4A source can be controlled remotely from a PC using N4ASoft software LAN RS232 and USB interfaces can be used F a N4ASoft ol 2 Configure isplay chedule Capture Help Output OFF SHUTI JURCE SETTINGS READ N4 SET UP N4A HIDESETTINGS ANAASOFT Settings FREQUENCY PH3 L N VOLTAGE 0 000V PH2 L N VOLTAGE PH1 L N VOLTAGE 0 000V Features include 0 000Hz 0 000V WAVEFORM The output can be switched on and off including an immediate SHUTDOWN SOURCE option Waveform type amplitude
8. characters are ignored e g tabs and spaces Replies from the N4A are always upper case delimited by commas without Spaces Only the first six characters of any command are important any further characters will be ignored For example the command to set the generator frequency is FREQUE but the full word FREQUENCY may be sent as the redundant NCY at the end will be ignored Fields within a command are delimited by comma multiple commands can be sent on one line delimited with a semi colon e g AMPLIFIER SENSE WIRE2 Mandatory commands specified in the EEE488 2 protocol have been implemented e g IDN RST and all commands that expect a reply are terminated with a question mark The N4A maintains an error status byte consistent with the requirements of the IEEE488 2 protocol called the standard event status register that can be read by the mandatory command ESR See section 4 1 Page 17 N4Axx Series User Manual The N4A also maintains a status byte consistent with the requirements of the 1 EEE488 2 protocol that can be read either with the IEEE488 serial poll function or by the mandatory command STB Over RS232 or IEEE or LAN see section 5 2 The IEEE address defaults to 23 and can be changed via the COMMS menu The keyboard is disabled when the instrument is set to remote using the IEEE Press HOME to return to local RS232 data format is start bit 8 data bits no parity 1 stop bit Flow
9. control is RTS CTS see section 5 2 baud rate is selectable via the COMMS menu When connecting to a PC use the supplied null modem cable A summary of the avallable commands is given in the Appendix Details of each command are given in the communication command manual Commands are executed in sequence except for two special characters that are immediately obeyed Control T 20 reset interface device clear Control U 21 warm restart To maintain compatibility with some communication systems there is an optional protocol 2 which requires a space between the command and any arguments Page 18 bit O bit 2 bit 3 bit 4 bit 5 bit 7 N4Axx Series User Manual Standard event status register OPC QYE DDE EXE CME PON operation complete cleared by most commands set when data available or sweep complete unterminated query error set if no message ready when data read device dependent error set when the instrument has an error execution error set when the command cannot be executed command interpretation error set when a command has not been recognised power on event set when power first applied or unit has reset The bits in the standard event status register except for OPC are set by the relevant event and cleared by specific command FESR CLS RST OPC is also cleared by most commands that change any part of the configuration of the instrument such as MODE or START
10. INT Time since last maintenance of each phase display brightness and keyboard beep etc PROG Recall store and delete non volatile programs Each menu starts with the currently set parameters visible but no cursor In this condition pressing the menu key again or the HOME key aborts the menu operation and reverts back to normal operation To scroll through parameters press the UP or DOWN key to move the cursor through the menu Pressing ENTER or using the numerical keypad allows the user to edit the parameter highlighted by the cursor In this condition the keys take on their secondary function such as numbers 0 9 multipliers n G etc Page 13 N4Axx Series User Manual Pressing the HOME key once removes the cursor from the display Pressing the HOME key a second time exits the current menu and reverts back to the summary display Parameters can also be altered from the main summary display screen To change a parameter first press the HOME key to bring up the cursor Scroll through parameters by using the UP and DOWN arrow keys and edit by pressing ENTER or a numerical key Remove the cursor with the HOME key at this point a voltage or frequency step can be performed by using the arrow keys The UP and DOWN arrow keys step the output voltage up or down by the multiplier parameter displayed Frequency can also be stepped up or down by using the LEFT and RIGHT arrow keys To abort the menu sequence press the HOME key twice
11. NCE c cece eee e eee eens page 11 ZE AMPIE QU PU iii page 12 3 Usina TNE MENUS veda aaa page 13 3 1 Numeric data entIyY ccococccccnccccncncnnnnnn nono page 15 2 XCENTI EEEE page 16 4 Using Remote Control ccceccceeeeeeeeeeeeeeeeeees page 17 4 1 Standard event status register csecsen page 19 4 2 Serial poll status reQiSter cc cece cess eee eeees page 20 4 3 RaZza32 CONNEcHION Summa page 21 5 Keypad TUNCUONS mc dar page 22 si Preset waveform K YS ccccceeeeseeeeeneeeeeeeees page 23 5 2 Ment CONTO KEYS mineraa aa a page 24 5 3 Display control KeyS oocccooccccoccccancca cnn page 25 5 4 Operating mode keys Numeric keypad page 26 SI CONTO VSee A page 27 6 Operating mode keyS occcccccccccccncccnacnnnacnnna nn page 28 6 1 A E CiU bate Pamrewee i uaeenauubewe as page 28 6 2 A A A page 29 6 3 a e EE A A T ahs ia AEE T page 29 64 FCS vag ehn eel eae a e page 29 6 5 Configuration settings CONFIG o page 29 6 6 Maintenance Information MAINT page 3121 6 7 Harmonics mode HARM c ceeceeeeeeeeeees page 32 Qu Ala Mir tr adas page 34 6 9 Sequencing mode SEO occcccccccccncccnncncna no page 34 6 10 System Options SYS oocccccocccccncnnana rana page 39 6 11 Communications COMMS ooccccccccncccnncnnna no page 41 6 12 Program store recall PROG oocccooccoo page 42 Page 6 N4Axx Series User Manual 7 Display layout and parameter adju
12. age Stability Better than 0 1 Better than 0 1 Better than 0 1 Better than 0 1 Better than 0 1 Output Voltage Accuracy Better than 0 5 Better than 0 5 Better than 0 5 Better than 0 5 Better than 0 5 THD N4A03 1 phase Better than 0 3 N4A06 1 phase Better than 0 3 N4A18 3 phase Better than 0 3 N4A30 3 phase Better than 0 3 N4A67 3 phase Better than 0 3 Output Noise lt 500mVrms lt 500mVrms lt 500mVrms lt 500mVrms lt 500mVrms Recovery Time of Output Waveform Better than 50us Better than 50us Better than 50us Better than 50us Better than 50us Page 47 N4Axx Series User Manual Recovery Time of Drop on Wires N4A03 1 phase Less than 200ms N4A06 1 phase Less than 200ms N4A18 3 phase Less than 200ms N4A30 3 phase Less than 200ms N4A67 3 phase Less than 200ms N4A03 1 phase N4A06 1 phase N4A18 3 phase N4A30 3 phase Inrush Imax 1 41 RMS Load Current N4A67 3 phase Inrush max 1 41 RMS Load Current Page 48 N4Axx Series User Manual Input Voltage 230V AC 10 3PH 400V AC 10 3PH 400V AC 10 3PH 400V AC 10 3PH 400V AC 10 3PH Input Frequency 45 65Hz 45 65Hz 45 65Hz 45 65Hz 45 65Hz Operating Temperature 0 35degC 0 35degC 0 35degC 0 35degC 0 35degC Input Current 24Arms 16Arms Phase 27A Neutral 60A continuous 120A inrush Phase 80A continuous 160A inrush Phase 160A co
13. be performed by the user if they have access to a N4L Precision Power Analyzer Contact details Newtons4th Ltd 1 Bede Island Road Leicester Leicestershire LE2 7EA United Kingdom Tel 0116 230 1066 International 44 116 230 1066 Fax 0116 230 1061 International 44 116 230 1061 E mail address sales newtons4th com office newtons4th com Web site www newtons4th com We have a policy of continuous product improvement and are always keen to hear comments whether favourable or unfavourable from users of our products Please telephone fax write or e mail with your comments Page 5l N4Axx Series User Manual Appendix A Accessories Supplied Standard Accessories Single Phase Units one N4A unit one 6 BNC to BNC cable one null modem cable one USB cable one communications manual 3 Phase Units one N4A unit one null modem cable one USB cable one communications manual Documentation Calibration Certificate Combined User Manual Communications manual Page 52 N4Axx Series User Manual Appendix B CommView2 PC Software CommView2 is a self contained software program for a PC which facilitates communication over RS232 USB or LAN CommView2 allows strings to be sent and received between a PC and the N4A The strings can be viewed in a window and optionally stored in a file Data received from the N4A may be displayed in normal scientific notation with an identifying label Strings to
14. c keypad is used to enter the value for each of the parameters SEQUENCE Once each line of the sequence is complete it can be saved by moving the curser to Save and pressing the Enter key My selecting Add new entry again another line in the sequence can be added It is also possible to insert a new line in the middle of the sequence and to delete lines within the sequence Page 35 N4Axx Series User Manual Simple example of a sequence This example will run through the process of creating a simple 4 step voltage repeating sequence Enter the sequence menu by pressing the SEQ key SEGUENCE Use the up and down arrow keys to highlight the mode options and then use the right arrow keys to list the options Use the up and down arrow to highlight Repeated and then press the enter key to save the selection Use the up or down arrow keys to highlight Add new line SEGUENCE Page 36 N4Axx Series User Manual Press the Enter key SEGUENCE The voltage setting will be highlighted by the cursor Enter the required voltage using the numeric keypad and press the Enter key Use the down arrow key to move the cursor to highlight the frequency setting enter the required frequency value and press the enter key Use the down arrow key to move the cursor to highlight the Half Cycles value enter the required number of half cycles and press the enter key Use the down arrow key to move the curso
15. cdc Amplifier phase wiring 1 phase wiring wiring Lphase 3 phase wiring wiring 3phase Amplifier phase offset Set phase 2 offset offset oh2 value Set phase 3 offset offset oh3 value Notes Value is the offset value and can be between 0 180 Amplifier sequence mode Single sequence sequence single Repeat sequence sequence repeat Clear Sequence sequence clear Page 56 N4Axx Series User Manual Entering Sequence settings First entry sequence valuel value2 value3 value4 Notes Valuel entry number can be between 0 50 Value2 Voltage Value3 Frequency Value4 Number of half cycles Page 5 N4Axx Series User Manual Appendix E Available character set The following characters can be selected in text entry mode The table is to be read across then down eg starting at space and repeatedly pressing NEXT gives amp etc amp dd i 0 1 2 3 4 5 6 7 8 9 lt gt A B C D E F G H J K L M N O P Q R S T U V W X Y Z o a b C d e g h j k m n O p q r S t u W X Z Page 58 N4Axx Series User Manual Appendix F Contact details Please direct all queries or comments regarding the N4Axx instrument or manual to Newtons4th Ltd 1 Bede Island Road Leicester Leicestershire LE2 7EA United Kingdom Tel 0116 230 1066 international 44 116 230 1066 Fax 0116 230 1061 International 44 116 230 1061 E mail address sale
16. d to pin 4 To connect the N4A to a PC use a 9 pin female to 9 pin female null modem cable 1 amp 6 CON UI E W N I NOURNWA Q O Page 21 N4Axx Series User Manual 5 Keyboard Functions The keyboard is divided into 5 blocks of keys Preset Waveforms keys 6 keys top right Menu control keys 7 centre keys Display Control keys 5 keys top left Operating mode Numerical keypad 12 keys lower left Control keys 4 keys lower right In normal operation the cursor keys give one touch adjustment of the frequency and voltage parameters without having to access the menu system The left right cursor keys adjust the frequency whilst the up down cursor keys adjust the voltage levels The Operating mode keys provide access to the menus and are used for numeric data entry Page 22 N4Axx Series User Manual 5 1 Preset Waveform Keys PRESET WAVEFORMS NOOOOL It will be possible to save customised waveforms that can be recalled by selecting one of these options The user will be able to set the amplitude frequency number of half cycles and harmonic content of the stored waveforms These keys are currently non operational This function will be added at a later date Page 23 5 2 N4Axx Series User Manual Menu Control Keys DA HOME q O gt ESC DELETE o ENTER BACK NEXT ENTER NEXT confirms your selection or parameter value data entry HOME ESC returns to the original entry or to yo
17. e Press HOME MENU CONTROL KEYS to abort data entry restore original Values may be overwritten or edited by use of the R Land DELETE keys Page 26 N4Axx Series User Manual 5 5 Control Keys WAVEFORM LIBRARY STOP OUTPUT ON OFF O 3 START O Waveform Library This key displays the different waveforms that are available One of the options can be selected using the lt gt keys to highlight the required waveform Press enter to select this waveform This key is currently non operational This function will be added at a later date Start Press this key to start the sequence Stop Press this key to stop the sequence Output on off To turn on the generator output press and hold this button until the output switches on Press and release this key to switch off the generator output Page 27 N4Axx Series User Manual 6 Operating Mode Keys Generator Settings The N4A M is a self contained single phase AC power source This section describes the setting of the generator for basic operation controlling the single phase output To enter the output settings menu press the PH1 key 6 1 PHI OUTPUT SETTINGS Voltage setting The N4A will by default output a sinusoidal voltage To change the RMS value of this voltage select PH1 using the arrow keys enter the desired value with the keypad and then press enter Values between 0 and 300Vrms can be entered Frequency setting T
18. ed on to identify the instrument The entered text may also be read over the communications to identify the instrument see USER Page 39 N4Axx Series User Manual Typical arrangement of the user data might be line 1 company name line 2 department or individual name line 3 unique identifying number eg asset number Any user data may be entered as required as the lines are treated purely as text and are not interpreted by the N4A at all System Information Pressing the SYSTEM key displays information about the instrument it cannot be changed by the user Serial Number Instruments unique serial number Manufacturing Code Code attributed to build date of the instrument Main release Current firmware release installed in the instrument FPGA Release Field Programmable Gate Array release version Boot Release Release version of instruments boot up firmware Last Calibration Instruments last calibration date Page 40 N4Axx Series User Manual 6 11 Communications COMMS REMOTE SETTINGS There are 3 Interface options available for communications between the instrument and a PC These options are LAN RS232 and USB Notes When RS232 is selected ensure that the Baud rate is correctly set to 19200 When LAN is selected ensure that a valid I P address is displayed on the comms screen Page 41 N4Axx Series User Manual 6 12 Program store recall PROG PROGRAM STORE RECALL 1 Press
19. erator unit Outputs of the generator are located at the back of the instrument and are labelled Generator Output PH1 PH2 PH3 The reference input to the power amplifier is located below the outputs and is labelled PH1 IN The 6 inch BNC cable must be connected between the PH1 output and PH1 input for any signal to be present at the main amplifier output The generator is off by default so the display may read some random values due to noise pick up Page 11 N4Axx Series User Manual 2 4 Amplifier Output It should be noted that the two main output terminals on the amplifier are NOT grounded and should not be grounded under any circumstances Although the output terminals are not the conventional high and low for clarity the left hand BLACK terminal can be considered as the positive and the right hand BLUE as the negative terminal In the event of any problem with this procedure please contact customer services at Newtons4th Ltd or your local authorised representative contact addresses and telephone numbers are given in the appendix at the back of this manual Page 12 N4Axx Series User Manual 3 Using the menus The N4A is a very versatile instrument with many configurable parameters These parameters are accessed from the front panel via a number of menus Each of the main menus may be accessed directly from a specific key CONFIG Sense coupling and amplitude frequency adjustment settings MA
20. he frequency setting is accessed in the same way as voltage through the PH1 menu Values between 1Hz and 10 KHz can be entered Waveform setting Waveforms currently available are sine triangle and square These are also accessed through the PH1 menu Page 28 N4Axx Series User Manual 6 2 PH2 See PH1 description in section 6 1 Only available on 3 phase instruments 6 3 PH3 See PH1 description in section 6 1 Only available on 3 phase instruments 6 4 Sweep This key is currently non operational This function will be added at a later date 6 5 Configuration settings CONFIG CONFIGURATION Page 29 N4Axx Series User Manual Sense terminals CONFIGURATION During flicker tests It is recommended that the sense terminals of the amplifier be used to compensate for any loss in the cabling between the source and impedance network To achieve this 4mm safety cables should be connected from the sense terminals to the impedance network voltage input Sense can then be activated by using the CONFIG menu setting sense to 4 wire There is also the option to select 2 wire sense in the menu Either of the sense options is switched off by selecting off in the CONFIG menu AC and DC coupling CONFIGURATION Page 30 N4Axx Series User Manual The output coupling can also be set in the CONFIG menu to AC or AC DC Note this coupling is performed on the signal after the PH1 IN BNC terminal meaning any
21. iplier Page 15 N4Axx Series User Manual 3 2 Text entry There are occasions where it is useful to enter a text string for example a non volatile program may have some text as a title Text is entered by selecting one of 9 starting characters using the Operating mode keys Numeric keypad then stepping forwards or backwards through the alphabet with the UP and DOWN keys Keys 2 to 9 and provide starting letters A D G M P T W and space Numbers can also be inserted using the number keys The UP and DOWN keys step forward and backward using the ASCII character definitions other printable characters such as or can be obtained by stepping on from the space The available character set is given in the Appendix When entering alphabetic characters the PROG key selects upper and lower case respectively for the character preceding the cursor and the next characters to be entered The editing keys RIGHT LEFT DELETE and ENTER operate in the same way as for numeric entry Page 16 N4Axx Series User Manual 4 Using remote control The N4A is fitted with RS232 USB serial and LAN communication ports as standard All the interfaces use the same ASCII protocol Rxexpects Txsends USB line feed ignored and line feed line feed ignored and line feed All the functions of the N4A can be programmed via either interface and results read back The commands are not case sensitive and white space
22. is key is currently non operational This function will be added at a later date 6 9 Sequencing mode SEQ SEQUENCE Sequence mode enables the user to generate a table of output voltage and frequency values and to specify the time each entry is output for This table of entries can be executed once or cycled through continuously Each menu item is explained below and a simple example given to clarify operation Mode Set the sequence to run through once single shot or run continuously Repeated until the stop button is pressed Seq no Set the number of table entries to be executed Selectable from 2 50 Vrms Set the amplitude for the specified sequence number in the table Selectable from 0 00Vrms to 300 00Vrms Page 34 N4Axx Series User Manual Frequency Set the frequency for the specified step number in the table Selectable from 1 0Hz to 10 000KHz Half cycles Select the required number of half cycles Selectable from 1 to 999 Time The value displayed here is calculated using the selected frequency and number of half cycles For example at 50Hz the time period of each half cycle is 10mS So if a time period of 30mS is required at a frequency of 50Hz then 3 half cycles would need to be selected Add new Entry This is the method used to enter the individual values for each parameter into the sequence The up and down arrow keys are used to move the cursor between each of the parameters The numeri
23. ising from a failure of the product or software In the event of any problem with the instrument outside of the guarantee period Newtons4th Ltd offers a full repair and re calibration service contact your local representative It is recommended that the instrument is re calibrated annually Users can perform re calibration of the N4A if they have access to a N4L Precision Power Analyzer Alternatively the instrument can be returned to us for re calibration Page 4 N4Axx Series User Manual ABOUT THIS MANUAL This manual describes the general features usage and specifications of the N4A range of Programmable AC power sources The N4A Power Source Range is N4A03 240V ac mains input 6KVA Single Phase Output N4A06 Three phase input 6KVA Single Phase Output N4A18 Three phase input 18KVA Three Phase Output N4A30 Three phase input 30KVA Three Phase Output N4A67 Three phase input 67KVA Three Phase Output Firmware version v1_10 was used for the preparation of this User Manual Document Version 1 01 This manual is copyright 2015 Newtons4th Ltd and all rights are reserved No part may be copied or reproduced in any form without prior written consent 04 August 2015 Page 5 N4Axx Series User Manual CONTENTS 1 Introduction general principles of operation page 8 2 Getting Started sais page 9 2 1 Moa 0 aaaea page 9 2 2 Connecting the Input supply to the N4A page 10 2 3 N4A Power Up SEQQUE
24. ntinuous 220A inrush Phase Efficiency Better than 80 Better than 80 Better than 80 Better than 80 Better than 80 At Nominal Voltage with Linear Load Page 49 N4Axx Series User Manual 9 Resetting the N4A to factory default mode This will clear any user defined programs that might be stored in the N4A and recalled when the instrument is switched on To access Program Store Recall mode PROGRAM STORE RECALL Press PROG button Press W Key until Red Box surrounds the number adjacent to Location Enter 0 Press V Key until Red Box surrounds Execute Press ENTER This will now reset the instrument to factory default mode The default settings are Amplitude 1V Frequency 50Hz Output Off Sense Off Firmware Programming N4L CommView2 software is used to program the N4A with updated firmware LAN Serial and USB interfaces can be used Page 50 N4Axx Series User Manual 10 Repair Recalibration amp Servicing Servicing This instrument requires servicing after the following periods 20 000 hours Ventilator replacement 40 000 hours DC bus capacitor replacement Repair Recalibration In the event of any problem with the instrument during or outside of the guarantee period contact your local representative Newtons4th Ltd offer a full repair and re calibration service It is recommended that the instrument be re calibrated annually This can
25. oft Harmonic Sequence and Sweep modes are also available The settings for these modes are user selectable Accordingly this manual first describes the general features and specification of the instrument as a whole and then describes the individual functions in detail Each function is described in turn in its own chapter with details of the principles on which it is based how to use it the options available display options specifications etc Page 8 N4Axx Series User Manual 2 Getting started The N4A is supplied calibrated and requires no further action by the user before operating the unit 2 1 Unpacking Inside the carton there should be the following items Single Phase Units one N4A unit one 6 BNC to BNC cable one null modem cable one USB cable one User Communications manual 3 Phase Units one N4A 3 phase unit one null modem cable one USB cable one User Communications manual Having verified that the entire above list of contents is present it is recommended to verify that your N4A has not been damaged in transit and operates correctly Page 9 N4Axx Series User Manual 2 2 Connecting the Input supply to the N4A unit With the exception of the mains powered N4A03 the unit requires a 3 phase supply of either 400VAC 10 480VAC 10 or 200VAC 10 Power is supplied to the N4A03 and N4A06 units through the black input connector on the rear of the unit All units with 3 phase o
26. or expenses arising from the use or misuse of this product however caused DECLARATION OF CONFORMI TY Manufacturer Newtons4th Ltd Address 1 Bede Island Road Leicester Leicestershire LE2 7EA We declare that the product Description Programmable AC Power Source Product name N4A Model N4Axx Family Conforms to the requirements of Council Directives 2004 108 EC relating to electromagnetic compatibility EN 61326 2006 2006 95 EC relating to safety of laboratory equipment EN 61010 1 2010 August 2015 Eur Ing Allan Winsor BSc CEng MIEE Director Newtons4th Ltd Page 3 N4Axx Series User Manual WARRANTY This product is guaranteed to be free from defects in materials and workmanship for a period of 12 months from the date of purchase In the unlikely event of any problem within this guarantee period first contact Newtons4th Ltd or your local representative to give a description of the problem Please have as much relevant information to hand as possible particularly the serial number and release numbers press SYSTEM then LEFT If the problem cannot be resolved directly then you will be given an RMA number and asked to return the unit The unit will be repaired or replaced at the sole discretion of Newtons4th Ltd This guarantee is limited to the cost of the instrument itself and does not extend to any consequential damage or losses whatsoever including but not limited to any loss of earnings ar
27. r above the time setting Enter the required time duration and press the enter key Use the up and down arrow keys to position the cursor to highlight Save and press the Enter key The first line of the sequence should now be complete as shown in the following screenshot Page 37 N4Axx Series User Manual SEQUENCE Use the above procedure to enter the next three lines in the sequence The completed sequence will then look like this SEQUENCE To run the sequence Press the HOME button twice and then hold down OUTPUT until the amplifier turns on Press the SEQ key to go back to the sequence menu Press the START key to start the sequence Press the STOP key to complete the sequence Page 38 N4Axx Series User Manual 6 10 System Options SYS SYSTEM OPTIONS Language This option will allow a choice of languages At present English is the only option Brightness There is a choice of screen brightness high suits most typical environments but low may cause less eye Strain in low light conditions Keypad Beep Each key press is normally accompanied by an audible beep as well as the tactile click The beep can be disabled for quiet environments if the feel of the key is sufficient feedback User Data The N4A can be personalised by entering up to 3 lines of user data as text see section on text entry User data is displayed every time that the instrument is switch
28. ructions This equipment is designed to comply with BSEN 61010 1 Safety requirements for electrical equipment for measurement control and laboratory use observe the following precautions e The 3 phase inputs need to be wired into the connector on the rear of the unit Use caution and ensure that the 3 phase supply is not live when connecting or disconnecting from the unit e For mains powered instruments ensure that the supply voltage agrees with the rating of the instrument printed on the back panel before connecting the mains cord to the Supply e This appliance must be earthed Ensure that the instrument iS powered from a properly grounded supply e The two main output terminals are NOT grounded and Should not be grounded under any circumstance e The maximum output from the unit is 300V AC Switch off the amplifier and ensure that the output current has fallen to zero before connecting or disconnecting anything to from the outputs of the unit e Keep the ventilation holes on the front and rear free from obstruction e Do not operate or store under conditions where condensation may occur or where conducting debris may enter the case e There are no user serviceable parts inside the instrument do not attempt to open the instrument refer service to the manufacturer or his appointed agent Page 2 N4Axx Series User Manual Note Newtons4th Ltd shall not be liable for any consequential damages losses costs
29. sonewtons4th com office newtons4th com Web site www newtons4th com At Newtons4th Ltd we have a policy of continuous product improvement and are always keen to hear comments whether favourable or unfavourable from users of our products An example comment form can be found at the end of this manual if you have any comments or observations on the product please fill a copy of this form with as much detail as possible then fax or post it to us Alternatively send an e mail with your comments Page 59 N4Axx Series User Manual AC Power Source comments serial date number your contact details comments detailed description of application or circumstances Please post or fax to Newtons4th Ltd Page 60
30. stment page 43 e aio saacocaiavecuniansoesacan A page 45 9 Resetting the N4A to factory default mode page 50 10 Repair Recalibration amp Servicing ceeeeee eens page 51 APPENDICES Appendix A Accessories Appendix B CommView2 PC software Appendix C N4ASoft PC Software Appendix D Communication Commands Appendix E Available character set Appendix F Contact details Page 7 N4Axx Series User Manual 1 Introduction general principles of operation The N4A range of self contained Programmable AC power sources has a number of modes and functions that share common resources such as the keyboard and display The instruments are normally supplied with 3 phase inputs with a choice of models that have single phase or 3 phase outputs There is also a single phase mains input single phase output version On single phase units output and sense are accessed via four 4mm safety terminal 3 phase units are provided with screw terminals The frequency range of the generator is from 1Hz to 10KHZz The output voltage range is OV to 300Vrms at a frequency up to 1KHz Above 1KHz the maximum voltage available reduces with the increase in frequency The output waveform type is also selectable and can be set to Sinewave Squarewave and Triangular waveform Software commands are available to control the generator output from a PC using N4L software programs such as CommView2 N4ASoft and ECS
31. to exit the adjustment screen Page 43 N4Axx Series User Manual When the output of the generator is switched on the display changes to the following screen to warn the user that potentially lethal voltages are present on the terminals of the instrument The default summary display is divided into a number of sections The top half of the screen displays the generator settings for the indicated phase These settings can be altered by the user The top right hand corner of the display indicates if the generator output is on or off The main part of the display shows the current waveform loaded into the generator Note The waveform display is not an accurate representation of what is seen at the output It is simply a quick reference To the right of the waveform the voltage and current monitor values are displayed User instructions are also displayed in blue text Along the very bottom of the display can be found the waveform sense and coupling settings Page 44 N4Axx Series User Manual 8 Specifications Nominal Output Power N4A03 1 phase 3000VA N4A06 1 phase 6000VA N4A18 3 phase 18000VA N4A30 3 phase 30000VA N4A67 3 phase 67500VA Output Voltage DC N4A03 1 phase 0 425V DC N4A06 1 phase 0 425V DC N4A18 3 phase 0 425V DC N4A30 3 phase 0 425V DC N4A67 3 phase 0 425V DC Page 45 N4Axx Series User Manual Page 46 N4Axx Series User Manual Output Volt
32. ur previous action DELETE BACK removes a previous selection or value or returns to your previous action ARROW KEYS Up Down L R to move around menu options make incremental decremental changes etc Page 24 N4Axx Series User Manual 5 3 Display Control Keys ZOOM ZOOM WIRING DISPLAY HOLD Zoom and Zoom These keys are currently non operational Wiring 1 phase is displayed on a single phase instrument On a 3 phase instrument 1 phase or 3 phase options will be available Display This will allow the user to display the output on all 3 phases at once for a 3 phase instrument This button is not used on single phase instruments This key is currently non operational This function will be added at a later date Hold This allows the user to toggle between continuous display readings and holding an instantaneous reading on screen No HOLD message is displayed but the screen and remaining keys will remain locked until the HOLD button is pressed again Note measurements will continue to be taken even when display is in Hold Page 25 N4Axx Series User Manual 5 4 Operating Mode Keys Numeric Keypad o a MS PH1 E L M EF Lu E o E O O zt G lt gt SWEEP o e HARM 8 gt 0 o 5 O O SYS NUMERIC ENTRY Use ENTRY KEYS for number multiplier decimal point or to enter parameter value Press ENTER MENU CONTROL KEYS to set valu
33. utputs are powered via screw terminals located on the rear A flat head screwdriver or similar tool must be inserted into the two tabs at the bottom of the black input connector lid to gain access The small bridge piece can then be removed to allow the supply cable to be inserted CAUTION Ensure the supply cable is removed from its socket at the inlet end and can be seen to avoid the possibility of an electric shock The connector should be wired as 1 Live 1 Live 2 Live 3 Neutral Neutral 6 Safety Earth Ul BW N Once these wires have been securely fastened replace the bridge piece and close the lid Page 10 N4Axx Series User Manual 2 3 N4A Power Up sequence Ensure the rocker switch on the front of the unit is set to position 0 Switch on the 3 Phase input to the N4A by setting the rotary Power switch on the rear of the unit to position 1 Power to the instrument is now controlled by the rocker switch on the front panel Switch on the N4A The instrument display should illuminate for a few seconds displaying the model name and the firmware version whilst it performs some initial tests The display will then default to the output summary screen and after a few seconds amplifier status data will start being received and displayed on the display Note that the switch on message can be personalised see the User Data section under System Options The N4Axx M contains a 3 phase waveform gen
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