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LDS1000 User Manual - Newport Corporation

1. 223 F1 Scrolling of possible parameters or cursor movement e F2 Lower value 1 for digital values F3 Next highest value 1 for digital values NEXT FA Next parameter CET F5 Save and exit E 1 T mode List of parameters Designation Available Values Default Value S N Series number of 6 digits 000000 the optical head 000000 999999 Type Sensor type Y axis horizontal TR RT or vertical RT Ycoef Linear correction 5 digits 04000 factor for Y axis 00100 to 29999 Yincr Counter increment 0 1 0 2 0 5 1 2 5 1 for Y axis 10 20 50 Yunit Unit displayed urad sec mrad nm unit for Y axis pm mm unit Yofs1 Electric offset 5 digits 00000 Yofs2 values for Y 00000 to 32767 Zcoef Linear correction 5 digits 04000 factor for Z axis 00100 29999 Zincr Counter increment 0 1 0 2 0 5 1 2 5 1 for Z axis 10 20 50 Zunit Unit displayed prad sec mrad nm unit for Z axis pm mm unit Zofs1 Electric offset 5 digits 00000 Zofs2 values for Z 00000 to 32767 The values displayed on the screen of the controller are obtained by the following calculation Ycalculatea x Ycoef x 10 x Yincr Ypisplayed 10 Zcalculatea x Zcoef x 10 x Zincr Zpisplayed 10 21 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors Display of Result in Arc Seconds LDS Vector IN gt CONF F4 gt HEAD FD gt EDIT FD The calibration certificate gives the v
2. 25 LDS1000 Controller Parameter Input 25 Reading the Internal Software Version 25 Modification of Display Brightness ees 26 Reading the Size of the Memory Installed 26 Reading the Analog Output Option 26 8 0 Analog Output Parameter Input 27 8 1 Selecting Analog Outputs if option present 21 8 2 Modification of Analog Output Parameters seeesss 28 9 0 TRIG Input and PWOK Output cc 30 9 1 Conventions on Logical Inputs Outputs seeee 30 02 X ERIGUIDDDUU neea a a ted UAE le 31 0 3 2 PWOK OULDUE rri donee eere ptr al aeo deae eet ed ee trustee e e e Ree Sd 31 10 0 Use with a Computer Inter face 32 10 1 Checking the Interface rine RRIRO ID EE EHE A OSEE 32 159 232 Interac ss iiie etre tr er ree dre seh earn dud 32 IEEE 433 Interface nitet entere ends de de se ves TE dr 33 10 2 EDSS TOOLS SO tWAre Reseau naines 34 10 3 Programming e RERO EE ERE SH UN EUER EEEa 35 Structure of Messages to the Controller sese 36 D Newport EDH0170En1020 07 11 iv Experience Solutions LDS1000 Controller for Laser Diode Sensors Programming Conventions ss 37 10 4 List of Commands etie NNE ander 38 Commands Listed by Category ss 38 System Management ss 38 Reading Current Sensor Parameters sess 38 Classical ACquisitiOBS r
3. System resting Read error Read error code 43 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors Use Syntax Parameter Description Response Errors Example Related commands Use MNL B RMT B ACT Syntax RD Parameter None Description Freezes the display on REMOTE MODE instruction to remove response times related to the display refresh This is the default display mode for Interface Mode Response None Error D Execution not allowed Example RD Frozen display The controller displays LOSI CONTROLLER Gece eines MODE Related commands RE Active display TB Read error TE Read error code D Newport EDH0170En1020 07 11 44 bins L RB Read TRIGG Input Status MNL E RMT B ACT RB None Read the status of the TRIGG input The return value will be equal to 0 or 1 depending on whether the interface is in high status or low status RBnn nn status of TRIGG input D Execution not allowed S Communication time out RB Request status of TRIGG input RBI TRIGG input is in high status RO Read PWOK output status TB Read error TE Read error code EJ Set Frozen Display Mode LDS1000 Controller for Laser Diode Sensors Use Syntax Parameter Description Response Error Example Related commands Use Syntax Parameter Description Response Errors Example Related commands gt Newport Exp
4. If the display is The IEEE 488 interface is active Otherwise press the 7 F1 key of the controller to return to the IEEE 488 protocol Use ED TT F2 mode to visualize and modify the interface parameters if necessary Return to the main display menu of the controller The system is ready to communicate in IEEE 488 RECOMMANDATION Refer to the Appendix B IEEE 488 Link Characteristics LDS TOOLS Software In order to communicate with the controller the user must have a terminal or a computer capable of communicating with external devices via a RS 232 C or IEEE 488 interface One approach is to use a communications software that can emulate a termi nal n other solution is to use NEWPORT software Windows 3 11 Windows 95 and Windows NT compatible and delivered with the LDS1000 Controller You can install this software on a PC compatible computer with the follow ing minimum configuration APersonal Computer or compatible AVGA monitor An 80386 or later processor e 4MB of available memory 8 MB recommended Ahard disk with enough disk space to install the options you need e A Windows 3 1x environment LDS TOOLS only accepts the following interfaces COMI or COM2 standard serial port e HP IB Hewlett Packard board model HPIB 82335 e HP IB Hewlett Packard board model HPIB 82340 e GPIB National Instrument board model AT GPIB TNT ATTENTION Before to use N
5. LDS1000 Controller for Laser Diode Sensors aN USER S MANUAL Newport Experience Solutions For Motion Think Newport LDS1000 Controller for Laser Diode Sensors Warranty A CAUTION Please return equipment in the original or equivalent packing You will be responsible for damage incurred from inad equate packaging if the original packaging is not used f N Y EDH0170En1020 07 11 Newport Corporation warrants this product to be free from defects in mate rial and workmanship for a period of 1 year from the date of shipment If found to be defective during the warranty period the product will either be repaired or replaced at Newport s discretion To exercise this warranty write or call your local Newport representative or contact Newport headquarters in Irvine California You will be given prompt assistance and return instructions Send the instrument trans portation prepaid to the indicated service facility Repairs will be made and the instrument returned transportation prepaid Repaired products are warranted for the balance of the original warranty period or at least 90 days Limitation of Warranty This warranty does not apply to defects resulting from modification or mis use of any product or part CAUTION The warranty does not apply to defects resulting from misuse Different use from that intended by NEWPORT Use ofa cable diffe
6. NF EN 61000 4 2 NF EN 61000 4 3 NF EN 61000 4 4 NF EN 61000 4 6 NF EN 61000 4 11 Date 11 22 2010 Dominique DEVIDAL Quality Director MICRO CONTROLE Spectra Physics Zone Industrielle F 45340 Beaune La Rolande France gt Newport nolis Scion vii EDHO170En1020 07 11 LDS1000 Controller for Laser Diode Sensors Definitions and Symbols The following terms and symbols are used in this documentation and also appear on the product where safety related issues occur General Warning or Caution The exclamation symbol may appear in warning and caution tables in this document This symbol designates an area where personal injury or damage to the equipment is possible The presence of the CE Mark on Newport Corporation equipment means that it has been designed tested and certified as complying with all applicable European Union CE regulations and recommendations European Union CE Mark WARNING This controller is a Class A device In a residential environment this device can cause radioelectric interferences In this case suitable measurements must be taken by the user of this device Warnings and Cautions The following are definitions of the Warnings Cautions and Notes that may be used in this manual to call attention to important information regarding personal safety safety and preservation of the equipment or important tips WARNING Situation has the potential to cause bodily harm or death CA
7. gt CONF F4 gt RACK F3 gt NEXT F4 Four levels of brightness are available CASE 44 The following functions are active F3 Highest brightness EIE F2 Lower value NEXT F4 Next parameter IN F5 Return to main menu The maximum brightness is the default value Reading the Size of the Memory Installed AIN gt CONF F4 gt RACK F3 gt NEXT F4 gt NEXT F4 The memory size depends on the option chosen at the time of ordering It is the size of the buffer memory used for automatic acquisitions carried out by the LDS1000 Controller This function is only accessible in Interface Mode The values read by the sensor can be successively stored in the memory at a high frequency MEM os ea CAE The RS 232 C or IEEE 488 interface authorizes alternate reading of these val ues LDS1000 Controllers have a standard memory size of 2048 measurement points couples Y Z Approximately 1 second of measurement can be stored at the maximum acquisition frequency of 2 kHz The read out time of these values depends on the communication transmission speed and the size of the host computer For 2000 points its value can reach several tens of seconds The extended memory option offers an extended memory of 14336 points It enables an event to be stored in the memory the duration of which can reach 7 seconds at 2 kHz The display of this menu directly gives the values of the mem
8. 1 Extended memory e Bit 1 0 Frozen display mode 1 Refreshed display mode e Bit2 0 e Bit3 0 e Bit4 0 e Bit5 0 e Bit6 1 e Bit7 0 Table for reading messages received Standard memory 2048 and frozen display B Standard memory 2048 and active display A Extended memory 14336 and frozen display C Extended memory 14336 and active display Response TSaa aa is an ASCII character Errors D Execution not allowed S Communication time out Example TS Read operational status TS Standard memory and frozen display Related commands TB Read error TE Read error code D Newport Experience Solutions 53 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors El Read Measurements Saved Use MNL B RMT B ACT Syntax xxTT Parameter xx Number of the acquisition to be proof read xx 0 to MAX MAX value returned by XN Possible error xx missing xx 0 xx outside authorized interval Error C Description This command enables the measurements saved to be read again following a TK TM or TQ command If xx is a whole number other than nil within the authorized interval the controller returns the value of the measurement xx If xx 0 or absent the controller returns all the measure ments in the memory one measurement Y Z per line starting with the number 1 In RS 232 C mode there is a 25 msec pause between two suc cessive lines response at
9. IFC Interface Clear Yes LAD Listen Address Yes LLO Local Lockout No OSA Other Secondary Address No PPC Parallel Pol Configure No PPD Parallel Poll Disable No PPE Parallel Poll Enable No PPU Parallel Poll Unconfigure No REN Remote Enable No SDC Selected Device Clear Yes SPD Serial Poll Disable No SPE Serial Poll Enable Yes SRQ Service Request Yes TAD Talk Address Yes TCT Take Control No UNL Unlisten Yes UNT Untalk Yes D Newport Experience Solutions 63 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors B 2 B 3 EDH0170En1020 07 11 IEEE 488 Function Subsets This controller support the many GPIB function subsets as listed bellow Some of the listings described subsets that the controller does not support CO Controller The LDS1000 can not control other devices T5 Talker The LDS1000 becomes a Talker when the CIC Controller In Charge sends its TAD Talker Address with the ATN Attention line asserted It ceases to be a talker when the CIC Controller In Charge sends another device s TAD Talker Address with ATN Attention asserted L4 Listener The LDS1000 becomes Listener when the CIC Controller In Charge sends its LAD Listener Address with the ATN line asserted The LDS1000 does not have Listen Only capability SH1 Source Handshake The LDS1000 can transmit multiline messages accros the GPIB AH1 Acceptor Handshake The LDS1000 can receive multiline me
10. Mode to be used normally For each communication mode RS 232 C or IEEE 488 the TD F3 key makes it possible to return to default values As a precaution a confirmation messages asks if you really want to modify the current parameters and specifies the active interface Hebe STD PAR 7 N 9 M E LDS1000 Controller Parameter Input MAIN gt CONF F4 gt RACK F3 Reading the Internal Software Version MAIN gt CONF F4 gt RACK F3 This menu displays the version of the LDS1000 software installed in the controller This internal software manages all the controller s functions in manual mode and in Interface Mode It also operates the controller when analog outputs are installed The physical modification of the software is done by EPROM exchange on the parent card of the 68000 processor Should you encounter any operating problems with the controller this information will be useful to the maintenance service It is possible to update the software as long as the material environment remains compati ble with the working of the software Access to Menu Rack provides the following display 27 FACATA F3 7 ra JEU ZIZAIVIE Mis JE The following functions are active NEXT F4 Access to next parameter MAIN F5 Return to main menu D Newport Experience Solutions 25 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors Modification of Display Brightness AIN
11. e Accurate measurements Long integration value e Wide range Low gain value Reduced range High gain value Zoom L F tine NI IN rn IN fr rE ar LILI PL l t TN r GUN ESTEE 1 al INT FD Modification of the integration constant GAIN F2 Modification of the gain END F5 Return to analog output mode Indo a Ma SET ss PPP x Qv Newport LDS1000 Controller for Laser Diode Sensors Xi vo SET GAIN For each of the parameters a modification menu uses the following func tions SET List of parameters F2 Lower value F3 Next highest value F5 Save and Return to analog output mode Designation Available Values Default Value INTG Integration 0 5 1 2 5 10 20 100 constant msec 50 100 200 500 1000 GAIN Output gain 1 2 5 10 20 50 1 Digital Analog 100 200 NOTE When you exit analog output mode after modifying the integration con stant the new value is also used to calculate the display of the controller Scale factors that correspond to the combined choice of the gain and the counter increment OUTY or OUTZ in mV for a Displayed Unit urad sec Incr 0 1 0 2 0 5 1 2 5 10 20 50 Gain 1 50mV 25 mV 10 mV 5 mV 2 5 mV 1 mV 0 5 mV 0 25 mV 0 1 mV 2 100mV 50 mV 20mV 10mV5 mV 2 mV 1 mV 0 5 mV 0 2 mV 5 250 mV 125 mV50 mV 25 mV 12 5 mV 5 mV 2 5 mV 1 25mV 0 5 mV 10 5
12. 4 5 and Z 1254 6 Related commands TB Read error TE Read error code TQ Acquisition on External Signal Use MNL B RMT ACT Syntax TQnn Parameter nn 1 at NBMAX number of measurements to be performed NBMAX max number of measurements related to the memo ry installed Possible error nn outside authorized interval Error C Description Performs an acquisition of nn measurements triggered by an external signal wired to the TRIGG input active on upward front The integration constant set by KI is used The number of the acquisition in progress is given by XN Response None Errors C Parameter out of limit D Execution not allowed Example 1TQ10 Launch the acquisition of 10 measurements triggered by an exter EDH0170En1020 07 11 nal TRIGG input NOTE This external input can be a simple push button without rebound which enables the operator to carry out the measurements at the most appropri ate moment E D Newport Experience Solutions LDS1000 Controller for Laser Diode Sensors Related commands KI Define the integration constant TB Read error TE Read error code TK Acquisitions with trigger on TRIGG input XN Read number of measurements in the memory ES Read Operational Status Use MNL B RMT B ACT Syntax TS Parameter None Description Read acquisition status The return value is an ASCII character the code of which should be translated into binary e BitO 0 Standard memory
13. High Status The current flows Drawn at the ground PASSIVE 0 Low Status The current doesn t flow Open wire e The output PWOK is in High status value 1 when the sensor receives light With the RO command it is possible to read the status of this out put e The passage of the TRIG input from Low status to High status upward front triggers the start of the synchronized acquisitions With the RB command it is possible to read the status of this input e The wiring of the logical PWOK output to the logical TRIG input allows an acquisition cycle to be started when signal inputs into the measure ment range of the sensor e Max frequency PWOK 130 Hz Max frequency TRIG 500 Hz e The reading is performed with a random delay from 0 to 1 msec The logical inputs outputs can only be used in Interface Mode z D Newport Experience Solutions LDS1000 Controller for Laser Diode Sensors 9 2 TRIG Input 5V 10 kQ e Compatible TTL input e Max voltage 5 V 9 3 PWOK Output 100 Q PWOK Output e Open collector output e Max voltage 30 V e Max current 20 mA D Newport Experience Solutions 31 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors 10 0 Use with a Computer Interface 10 1 EDH0170En1020 07 11 The LDS1000 electronic controller offers its full measuring capacity when connected to a compu
14. Integration constant in msec with 0 no integration gt 0 5 msec Possible error nn other than list below nn takes nearest value Set the value of the integration constant INTG to nn msec None D Execution not allowed KI100 Define integration constant at 100 msec NOTE Do not confuse KI integration constant and SP sample period The integration constant KI sets the duration of the digital averaging car ried out on acquisitions to 2 kHz The sample period SP sets the time interval separating two successive measurements related to commands TK TM Related commands SP Define sample period TB Read error TE Read error code XI Read integration constant Newport EDH0170En1020 07 11 40 Frofecs Sun LDS1000 Controller for Laser Diode Sensors ML Return to Local Mode Use MNL E RMT ACT Syntax ML Parameter None Description End of remote mode and return to manual mode Response None Error D Execution not allowed Example ML Return to manual mode NOTES When returning from Interface Mode to Manual mode the display returns to the Main menu the keys on the front panel are active again and the integration constant keeps the value possibly programmed by KI The parameters SP TE XN are set at the following values SP 0 TE and XN 0 Related commands MR Set Interface Mode RD Frozen display RE Active display TB Read error TE Read error code D Newport Ex
15. Number Item s Being Returned Model Serial Description Reasons of return of goods please list any specific problems D Newport Experience Solutions 67 EDH0170En1020 07 1 1 Newport Experience Solutions Visit Newport Online at WWw newport com North America amp Asia Newport Corporation 1791 Deere Ave Irvine CA 92606 USA Sales Tel 800 222 6440 e mail sales newport com Technical Support Tel 800 222 6440 e mail tech newport com Service RMAs amp Returns Tel 800 222 6440 e mail rma service newport com Europe MICRO CONTROLE Spectra Physics S A S 1 rue Jules Guesde Bat B ZI Bois de l pine BP189 91006 Evry Cedex France Sales amp Technical Support Tel 33 0 1 60 91 68 68 e mail france newport fr com Service amp Returns Tel 33 0 2 38 40 51 55
16. TT or OTT to avoid overflow Reading is possible as soon as the acquisitions have begun Response xxTT 1TPnn1 2TPnn2 Errors C Parameter out of limit D Execution not allowed S Communication time out Example 9TT Read measurement number 9 9TT 1TP12 2 2TP258 1 Measurement number 9 Y 12 2 and Z 258 1 Related commands TB Read error TE Read error code gt Newport EDH0170En1020 07 11 54 Experience Solutions LDS1000 Controller for Laser Diode Sensors VE Read Internal Program Version Use MNL B RMT B ACT Syntax VE Parameter None Description Read internal program version of the controller Response VELDS1000 Controller Version xx yy xx Version yy Progress index Errors D Execution not allowed S Communication time out Example VE Read program version VE LDS1000 Controller Version 3 10 Program version 5 10 Related commands TB Read error TE Read error code Ea Read Integration Constant Use MNL B RMT B ACT Syntax XI Parameter None Description Read integration constant given in milliseconds Response XInn nn is the integration constant given in milliseconds Errors D Execution not allowed S Communication time out Example XI Read integration constant XI100 The integration constant is equal to 100 msec Related commands KI Define the integration constant TB Read error TE Read error code D Newport Experience Solutions 55 EDH0170En102
17. cos TN A ARINI NI NY RIS K A LDS1000 GO Controller for Laser Diode Newport Sensors Experience Solutions i Year C mark affixed 2010 EC Declaration of Conformity The manufacturer MICRO CONTROLE Spectra Physics 1 rue Jules Guesde ZI Bois de l Epine BP189 F 91006 Evry FRANCE Hereby declares that the product Description LDS1000 Function Controller for Laser Diode Sensors Type of equipment Electrical equipment for measurement control and laboratory use complies with all the relevant provisions of the Directive 2004 108 EC relating to electro magnetic compatibility EMC complies with all the relevant provisions of the Directive 2006 95 EC relating to electrical equipment designed for use within certain voltage limits Low Voltage was designed and built in accordance with the following harmonised standards NF EN 61326 1 2006 Electrical equipment for measurement control and laboratory use EMC requirements Part 1 General requirements NF EN 55011 2007 Class A NF EN 61000 3 2 2006 A1 2009 A2 2009 Electromagnetic compatibility EMC Part 3 2 Limits Limits for harmonic current emissions NF EN 61010 1 2001 Safety requirements for electrical equipment for measurement control and laboratory use Part 1 General requirements was designed and built in accordance with the following other standards
18. ea aqua eia 57 10 7 Examples of Messages cccccsscsscsseessesscesescessessesscessessesseessessesseeneeses 57 10 8 Examples of Programs Quick Basic by Microsoft 57 Example with RS 232 C Interface sees 57 Example with IEEE 488 Interface cccceessesseceeeeececeeseeeeeeeseceeeaeeeeees 58 11 0 Maintenance 59 L Optical CA eng MR le ent 59 11 2 Maintenance of the LDS1000 Electronic Controller 59 LS CAISSE nu a a Ni SE ENE ted SL Td 60 RS232 C Cabl88 sen eit etre eut entente ER 60 IEEE 438 Ca Ble ie ic o eee ebbe tu ded e a RU A EET RE ones 60 sensor Interface Cable 61 Analog Output Cables ore mte en tentent 61 Measurement Synchronization Input Cable 61 Beam Signal Output Cable erri teen 61 D Newport Experience Solutions V EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors Appendices 2 1 62 A Example of Program Using RS 232 C Link 62 B IEEE 488 Link Characteristics eese 63 IEEE 488 Functions Supported by LDS1000 Controller 63 IEEE 488 Function 5Subsets recederet nein neue de e ae 64 SRO USINA sonore dam oO ttam den t audien ious 64 SEVICE LOTI REN 67 EDH0170En1020 07 11 D Newport vi Experience Solutions LDS1000 Controller for Laser Diode Sensors EC Declaration of Conformity SSRIS y CONS dun dut
19. in manual mode W Ee MAL T This message indicates that the communication is programmed in RS 232 C Access to the following functions is then possible 22 2 F1 Changing RS 232 C IEEE 488 EDIT F2 Modification of the parameters of the selected interface GID F3 Change to default values of the selected interface MAIN F5 Return to main menu NUN The communication mode can be modified from this menu using the gt gt A Newport ce Solution 23 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors Modification of RS 232 C Parameters The RS 232 C interface is active if the diee is MAIN gt LONE F4 gt COMM F2 as follows es Ra cowek MAN S EDIT STO Otherwise the gt gt In E DIT face can be modified F1 key provides access to this menu mode the values of the parameters stored for the RS 232 C inter For all the parameters a modification menu uses the following functions Scrolling of possible parameters and their status NEXT F4 Next parameter CET F5 Save and exitE DTT mode MAIN F5 Return to main menu List of parameters Designation Available Values Default Value MSG TERM End of sequence CR LF CR LF LF CR CR terminator BAUD RATE Transmission 300 600 1200 2400 9600 Speed 4800 9600 19200 WORD LENGTH Length of 7 8 8 the string sended STOP BITS Stop bit 1 2 1 number PARITY Parity N
20. menu Selecting the Number of the Current Sensor MAIN gt CONF F4 gt HEAD FD gt CHGE P3 From this menu it is possible to modify the number of the current sensor HEAD NUMBER SE VIS The display then takes into account the parameters associated with the number of the current sensor PS F2 Previous number 1 J44 F3 Next number 1 VISI FA Visualization of parameters of the sensor envisaged SET F5 Save the new configuration A Newport ce Solution 19 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors EDH0170En1020 07 11 Modification of Current Sensor Parameters MAIN gt CONF F4 gt HEAD FD EDIT FD Each NEWPORT sensor is delivered with a calibration certificate which enables the correct programming parameters for the LDS1000 Controller to be established This certificate gives the values of the following parameters S N Series number of the optical head A number is allocated to each sensor It means it can be identified and its progress can be monitored Type Y axis horizontal TR or vertical RT This indication specifies the type of measurements carried out by the sen sor Thus RT for rotation designates an autocollimator This value is used by some programs for a correct display Ycoef Zcoef Linear correction factor for the axis Y or Z The sensor can be calibrated on a measuring bench The given value of Ycoe
21. of offsets are reached when the instrument does not receive any light In order to get these values place a black screen in front of the exit pupil of the instrument The requested values are then dispayed by the LDS1000 in the specific test mode described in chapter 7 3 MAIN gt MENU F5 gt NEXT F4 gt TEST F2 Zw CACACAT CI CACATAZ7 MANT NI SY Ulo We MAIN 277 CACACAT 3 DATATAN 57 ie 2119 The first line gives Yofs1 and Yofs2 The second line gives Zofs1 and Zofs2 Take notes of these values and go to LDS1000 parameter setting as explained in chapter 7 4 D Newport Experience Solutions 9 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors mn Starting the Equipment EDH0170En1020 07 11 5 1 5 2 Setting Up The setting up of the sensor is explained in each user s manual of the LDS instruments RECOMMANDATION You are advised to read the user s manuals corresponding to each sensor delivered They contain important information for optimal use of the instruments These instructions can vary from one sensor to another Mounting Small movement measurements require specific precautions as far as the quality of the mounting of the equipment is concerned It is particularly important to make sure that the sensor the reflector and their correspond ing supports are solid Electric Connections CAUTION Before connecting check that all equipment is
22. set up your application to detect and respond to service requests from GPIB devices Service Requests from IEEE 488 Devices IEEE 488 devices request service from the GPIB Controller by asserting the GPIB SRQ line When the Controller acknowledge the SRQ it serial polls each open device on the bus to determine which device requested service Any device requesting service returns a status byte with bit 6 set and then unasserts the SRQ line Devices not requesting service return a status byte with bit 6 cleared Manufacturers of IEEE 488 devices use lower order bits to communicate the reason for the service request or to summarize the state of the device 2 D Newport Experience Solutions LDS1000 Controller for Laser Diode Sensors Service Requests from IEEE 488 2 Devices The IEEE 488 2 standard redefined the bit assignments in the status byte In addition to setting bit 6 when requesting service IEEE 488 2 devices also use two other bits to specify their status Bit 4 the Message Availiable Bit MAV is set when the device is ready to send previously queried data Bit 5 the Event Status Bit ESB is set if one or more of the enabled IEEE 488 2 events occurs These events include power on user request command error execution error device dependant error querry error request con trol and operation complete The device can assert SRQ when ESB or MAV is set or when a manufacturer defined condition occurs Also on page 7 7 N
23. 0 07 1 1 LDS1000 Controller for Laser Diode Sensors Use Syntax Parameter Description Response Errors Example Related commands Use Syntax Parameter Description Response Errors Example Related commands EDH0170En1020 07 11 E Read Number of Stored Measurements MNL XN XNnn D S XN XN100 TB TE TK TM TQ TT E RMT B ACT None Read number of measurements available in the memory The memory contains nn measurements Execution not allowed Communication time out Read number of available measurements The memory contains 100 measurements Read error Read error code Acquisitions with trigger on TRIGG input Immediate acquisitions Acquisitions with synchronization on TRIGG input Re read acquisitions ES Read Sample Period MNL XSnn XS XS2 5 TB TE SP E RMT B ACT None Read sample period The sample period is nn milliseconds Execution not allowed Communication time out Read sample period The sample period is equal to 2 5 ms 400 Hz Read error Read error code Define sample period D Newport 5 6 Experience Solutions LDS1000 Controller for Laser Diode Sensors 10 6 10 7 10 8 gt Newport Experience Solutions Error Messages Error messages are available in a specific memory of the LDS1000 Controller in reply to the TE or TB message sent by the interface Cha
24. 00 electronic controller is delivered with A RS 232 C lead The present user s manual The LDS TOOLS Software A connection cable 5 or 10 meters depending on the order As well as the extra accessories and options that may be ordered J The sensor is delivered in a protection case which contains The optical head The control certificate It s own user s manual 2 2 Modes of Operation Manual Mode The LDS1000 Controller displays angular rotation values of the mirror on a frontal display screen The operator uses the display and the active but tons on the front panel to Read the measurements Modify the integration constant Define the zero point Program the parameters of the connected sensor Modify the communication parameters RS 232 C or IEEE 488 Activate the analog outputs where available Refer to the chapter entitled Off line use EDH0170En1020 07 11 gt Newport 2 Experience Solutions LDS1000 Controller for Laser Diode Sensors Remote Mode When linked to a computer by RS 232 C or IEEE 488 connection the LDS1000 Controller communicates by ASCII messages The buttons on the front panel of the controller are no longer valid The following functions are possible e Reading the controller s programmed parameters e Modification of the integration constant e Transmission of instantaneous values measured e Acquisition in the co
25. 00 mV 250mV 100 mV50 mV 25mV 10mV5mV 2 5 mV 1 mV 20 1V 500mV 200mV 100 mV50 mV 20mV 10mV5mV 2mV 50 2 5 V 1 25V 500mV 250mV 125 mV50 mV 25 mV 12 5 mV 5 mV 100 5V 2 5 V 1V 500mV 250mV 100 mV50 mV 25 mV 10 mV 200 10V 5V 2V 1V 500mV 200mV 100 mV50 mV 20 mV OUT mV Measure unit x Gain Incr x 5 gt Newport Experience Solutions Example using the Table The controller operates in manual mode with a Yincr value of 0 2 and a unit given in arc sec The following values can therefore be read Hel Mt HEL Li NV REN pou E 5 DE Z B 54 E We can therefore expect to obtain the following analog values OUTY 2 62 x 25 65 5 mV OUTZ 8 54 x 25 213 5 mV OUTY 2 62 x 125 mV 327 5 mV OUTZ 8 54 x 125 mV 1067 5 mV e With a gain of 1 With a gain of 5 29 EDHO170En1020 07 11 LDS1000 Controller for Laser Diode Sensors m TRIG Input and PWOK Output 9 1 EDH0170En1020 07 11 Conventions on Logical Inputs Outputs The controller has a logical TRIG input available on a BNC socket on the rear panel It provides a logical PWOK output that indicates if the sensor is receiving light NICRO CONTROI Q OE SENSOR Dai oury EA TRIG PWOK Input Output Logical Inputs Outputs e The convention retained for logical inputs outputs is the following ACTIVE 1
26. 1 F3 Next number 1 UTSU FA Visualization of parameters of the sensor envisaged GET F5 Save the new configuration Programming the new sensor is done by the ED I f menu see modifica tion of sensor parameters ND Newport EDH0170En1020 07 11 22 ce Soluti LDS1000 Controller for Laser Diode Sensors Visualization of Current Sensor Parameters MAIN gt CONE F4 gt HEAD FD gt VISU F2 You are advised to check that the current sensor really matches the sensor that is currently connected to the controller This Visualization mode is easily accessible and provides the explicit values of the current sensor parameters Check that the series number really matches that of the connected sensor For more certainty compare the values of the parameters to those given in the calibration certificate supplied with the sensor In case of nonconformity it is necessary to e Either find another number of the current sensor especially if the series number does not match Hit Menu e Or modify the current sensor parameters f Menu Communication Parameter Input MAIN gt LONE F4 gt COMM F2 Access to this menu enables the parameters and the choice of communica tion mode of the controller to be modified It is useful to check these values before connecting to a computer This must be done before using the instrument in Interface Mode The f 0MM menu makes this selection possible
27. 1 1 LDS1000 Controller for Laser Diode Sensors 4 3 EDH0170En1020 07 11 Calibration A reading of the linear errors according to the angle measured is provided with each sensor This calibration certificate gives in particular the value of the principal parameters to be used to configure the LDS1000 electronic controller e S N Series number of the optical head Type RT Rotation for LDS Vector R I AS Ge en a X ER a boc X Beam Axis Y Horizontal Axis Z Vertical Axis Type RT Rotation Y Rotation around Y axis Z Rotation around Z axis Type TR Translation Y Parallel translation with Y axis Z Parallel translation with Z axis e Ycoef Linear correction factor for axis Y e Yincr Count increments for axis Y e Yunit Unit displayed for axis Y e Yofsl Yofs2 Channel Y electronic offsets e Zcoef Linear correction factor for axis Z Zincr Count increments for axis Z Zunit Unit displayed for axis Z e Zofsl Zofs2 Channel Z electronic offsets These parameters were optimized when the instrument was calibrated in order to obtain the best results You are advised not to modify them with out reason These parameters have been defined for the following conditions of use e Temperature 22 C 2 C e Mirror diameter gt 31 mm e Reflectivity 80 at 670 nm e Working distance 0 1m Noise Reduction The LDS1000 Controller const
28. 1 1 LDS1000 Controller for Laser Diode Sensors 8 2 EDH0170En1020 07 11 Electric Characteristics of the Analog Outputs Outputs on rear panel of controller 2 connectors BNC OUTY and OUTZ Refresh frequency 2000 Hz Low pass digital filter 1 to 2000 Hz depending on INTG e Output range 10 V Scale factor 5 mV incr for Gx1 to 1000 mV incr for Gx200 Resolution 0 5 increment 1 mV rms 0 5 electronic 50 mV typical e Electronic noise e Distortion e Maximum offset e Discrepancy Pure delay of 1 1 msec outside integration e Output impedance 10 Q WARNING SPECTRAL WITHDRAWAL The analog outputs use an intermediary calculation stage that is based on a sample at 2000 Hz This will limit the use of the LDS sensor for studying signals that do not have a significant spectral component over 1000 Hz this sort of component would find themselves withdrawn and would appear for lower frequencies The functions accessible by the ANI 3 Menu are the following CONE F4 Modification of analog output parameters M I AIN F5 Return to main menu Return to main menu disables the analog outputs Modification of n s bici Parameters IN gt CONF F4 gt ANL D F4 gt CONF F4 The integration constant INTG and the gain GAIN can be modified in this menu AL W They will be chosen in relation to the type of measurements to be carried out e Rapid measurements Low integration value
29. 10 V The impedance of the outputs if equal to 10 O and the maximum current they can deliver is 4 mA D Newport 1 4 Experience Solutions LDS1000 Controller for Laser Diode Sensors El Off Line Use Manual Mode 7 1 gt Newport Experience Solutions The LDS1000 Controller has two modes of operation Manual mode which enables e The configuration of the controller in accordance with the parameters of the sensor used e To carry out measurements on values displayed To modify the integration time and the display mode To parameter the communication interface To select the analog outputs if option available Interface mode which enables Flying spot reading of values measured Execution of acquisition sequences that are synchronized or not Reading the sensor status Manual mode is valid when the autocollimator is in off line use to perform measurements from the controller display It is also used to parameter the computer interface or to access the analog outputs option if it exists Access to Manual Mode Manual mode is directly accessible on the controller at the time of Power up except in the following cases e Sensor non connected or damaged Laser error e Analog output mode valid Refer to the corresponding chapter e Communication in progress via RS 232 C or IEEE 488 Refer to the Interface Mode chapter The starting point is the main Menu which is the controller
30. 600 e MSG TERM CR e WORD LENGTH 8 e STOP BITS Dd e PARITY NONE A higher rate can be obtained with BAUD RATE 19200 if the computer can bear it The CR terminator is the basic default terminator 57 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors EDH0170En1020 07 11 The example program LDSRS1 is an example of programming in Quick basic Microsoft It demonstrates how to e Open the interface with the appropriate parameters e Set the controller to remote mode e Send a command and wait for the response e Read the response and convert the ASCII chain received into digital val ues e Return to local mode RECOMMANDATION Refer to the Appendix A Example of Program Using RS 232 C Link Example with IEEE 488 Interface Contrary to the RS 232 C interface the IEEE 488 interface does not equip computers in standard state This interface requires a special card that is included in the computer This card is supplied with library of functions that must be chained with the program developed Refer to the card documentation to correctly perform the material configu ration IEEE 488 card Computer Three program parameters must be related between the controller and the computer e Chain terminator MSG TERM CR LF by default e Primary address PRIM ADRESS 00 by default e Secondary address SECOND ADRESS 15 by default The CR LF terminator is the defa
31. DS Vector electronic autocollimator To simplify programming and to minimize the risk of errors the LDS1000 electronic controller has a memory that can store all the parameters of 10 different sensors Only Manual mode makes it possible to modify the num ber of the sensor being used as this modification requires manual adjust ment on the controller physically connecting the sensor required To configure the sensor you will need to consult the control statement delivered with each piece of equipment Should you lose it a duplicate of this document which is of great importance is kept by our metrology department Just note the number that is marked on the sensor and we will be able to send you a copy of the document The configuration of the sensor is carried out in manual mode and enables e The active sensor to be selected e The parameters of the active sensor to be visualized e The parameters of the active sensor to be modified See the chapter entitled Off line use Interface Configuration Manual mode enables the parameters and the communication mode of the controller to be chosen It is useful to check these values before proceed ing with a connection to a computer This must be done before using the instrument in Interface Mode The LDS1000 Controller communicates with a computer via two standard protocols available e RS 232 C e JEEE 488 RS 232 C Interface The RS 232 C protocol is available on most comme
32. EWPORT LDS Tools software IEEE 488 boards listed above must be into the initial configuration of the constructor and installed in accordance with its recommended procedure Before to use NEWPORT LDS Tools software we advise you to use soft wares utilities supplyed with the IEEE 488 board to check that the instal lation is completed successfully E D Newport Experience Solutions LDS1000 10 3 gt Newport Experience Solutions Controller for Laser Diode Sensors This software enables you to quickly master the instrument in Interface Mode You are able to promptly check if the communication is working cor rectly It is a base for learning the basic functions of the LDS1000 Controller Finally it is used as a communication basis with LDS Vector for a substantial number of applications This software will only work with controllers that have a software version higher than V3 00 With the software the main functions of LDS instruments can be used e Display of the position by a moving spot on a target e Diameter of the variable target in relation to the spot position e Display of the position in large characters Remote reading e Dialog with the controller parameter modification e Point to point acquisition sequence analysis and storage e Rapid acquisition sequence max freq 2 kHz analysis and storage Programming Before we get to this chapter we presume that the interface parameters have been c
33. H0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors Use MNL B RMT B ACT Syntax xxTA Parameter xx Axis number I for Y and 2 for Z Possible errors xx l and xx 2 Error B Description Read parameters of a current sensor axis TYPE RT or TR COEF 00100 to 29999 INCR 0 1 0 2 0 5 1 2 5 10 20 50 UNIT prad sec mrad nm um mm unit OFS1 00000 to 32767 OFS2 00000 to 32767 The parameters are separated by commas Response Sensor axis parameters Errors B Incorrect axis number D Execution not allowed S Communication time out Example 1TA Read the parameters of axis 1 Y of the current sensor Related commands TB Read error TE Read error code Error Description Use MNL B RMT B ACT Syntax TBaa Parameter aa Error code in ASCII format to U If there is no parameter read current error Description Read message related to a an error code parameter aa Read current error message if aa is missing Response TBaabb aa Error code queried bb Error description Errors D Execution not allowed S Communication time out Example TB Read error message Q TB No error No error Related command TE Read error code D Newport EDH0170En1020 07 11 48 Petre stes EX Query Sensor Parameters LDS1000 Controller for Laser Diode Sensors TE Read Error Code Use MNL B RMT B ACT Syntax TE Parameter None Description Read last error code gen
34. Hit any key to abort WHILE INKEY send TP PRINT 1 env wait answer WHILE LOC 1 0 WEND read LA510 answer LINE INPUT 1 ret conversion ASCII gt numerical values msge MID ret 4 comma INSTR msge posy LEFT msge comma 1 posz MID msge comma 4 posyn VAL posy poszn VAL posz print result LOCATE 10 10 PRINT LAE510 message ret LOCATE 12 20 PRINT Y value LOCATE 12 30 PRINT USING posyn LOCATE 13 20 PRINT Z value LOCATE 13 30 PRINT USING poszn WEND LDS1000 in local mode ev ML PRINT 1 ev END D Newport 62 Experience Solutions LDS1000 Controller for Laser Diode Sensors B IEEE 488 Link Characteristics NOTE In order to meet FCC emission limits for a Class B device you must use a double shielded IEEE 488 cable Operating this equipment with a single shielded cable may cause interference to radio and television reception in residential areas NOTE Comply to IEEE Standard Digital Interface for Programmable Instrumentation ANSI IEEE Std 488 1978 This norm is commonly called IEEF 488 B 1 IEEE 488 Functions Supported by LDS1000 Controller Mnemonic Definition Support ATN Attention Yes DCL Device Clear Yes EOI End or Identify Yes EOL End of Line Yes GET Group Execute Trigger No GTL Go to Local No
35. ONE ODD EVEN NONE Modification of IEEE 488 Parameters MAIN gt CONF F4 gt COMM F2 The IEEE 488 interface is active if the displayi is as follows Otherwise the gt gt In EDIT face can be modified F1 key provides access to this menu mode the values of the parameters stored for the IEEE 488 inter EDH0170En1020 07 11 For all the parameters a modification menu uses the following functions gt gt gt F1 Scrolling of possible parameters or cursor movement on F2 Lower value 1 for digital values F3 Next highest value 1 for digital values NEXT F4 Next parameter GET F5 Save and exit DTT mode MAIN F5 Return to main menu A Newport ce Soluti 24 LDS1000 Controller for Laser Diode Sensors List of parameters Designation Available Values Default Value MSG TERM End of sequence CR LF CR LF LF CR CR LF terminator PRIM ADRESS IEEE 488 2 digits 15 primary adress 00 to 30 SECOND ADRESS IEEE 488 2 digits 00 secondary adress 00 to 30 TIME OUT Communication 0 01 to 10 sec 0 5 time out Default Values of Communication Parameters MAIN gt CONF F4 gt COMM F2 The communication programs available for the LDS1000 Controller use the communication parameter default values The LDS1000 Controller enables you to quickly return to the correct mode of operation when the parameter modifications do not allow the Interface
36. SENSOR The user must read the warnings in the LDS sensor manual before set ting up the equipment The sensor must be connected to the LDS1000 Controller using a cable supplied by us and that has not been modified Connection and disconnection must never be carried out to equipment that is switched on CAUTION LASER SAFETY The LDS Series Sensor is a CLASS II LASER INSTRUMENTS according to the EN 60825 1 standard DO NOT STARE INTO BEAM Max Power lt 1 mW 670 nm D Newport Experience Solutions ix EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors Device Manufacturer LDS1000 YS MICRO CONTROLE 1 Rue Jules Guesde Bat B A Zl Bois de l pine S N BP189 EVRY 914006 FR Manufactured 06 2011 Complies with CFR 21 Subchapter J WARNING DANGEROUS VOLTAGE This equipment operates with a supply voltage that can be fatal Do not introduce any object into the controller and do not spill any liquid on the equipment as this could cause a short circuit Opening or removing the cover of the equipment exposes you to electric shocks Do not open the equipment The parts that are inside are of no use to the user CAUTION SAFETY REGULATIONS Do not use the instrument in an explosive environment Make sure there is no liquid near the instrument Make sure that the instrument is not exposed to excessive humidity more than 85 Do not replace any part and do
37. Standard controller European standard 220V 2 manuals and EU cable 12 Analog option controller EU standard 22 14K memory option controller EU standard 32 2 option controller EU standard D Newport Experience Solutions 3 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors Sensor Autocollimator bilingual user s manual LDS Vector Accessories and Additional Equipment Kits Calibration blade kit with certificate LDS CAL01 2 theta adjustable mount LDS SL 2 theta XY adjustable mount LDS SLXY 4 movement adjustable mount on X26 complete for LDS Vector LDS X26 V 2 4 Dimensions FRONT VIEW gt LDS1000 nm T NEWPORT 329 By S fees sea fe 83 5 Sa iS __ 83 21 lt 13 0 329 5 Depth 13 9 352 SENSOR Y amp Z CONNECTOR OUTPUTS REAR VIEW IEEE 488 CE SR T Gn less El TRIG PWOK INPUT INPUT RS 232 C EDH0170En1020 07 11 D Newport Experience Solutions LDS1000 Controller for Laser Diode Sensors m Principle of Operation 3 1 Laser Diode Sensors The emission is performed by a Laser diode controlled and modulated at 10 kHz The reception is performed by a position sensing device that provides ana log voltages From the electronic controller s point of view that becomes e Supply the necessary power to the laser
38. The analog outputs are only available by manual mode on the models equipped with this option It is possible to modify the following parameters Refer to the chapter Off line use NOTE The analog outputs deliver two voltages that are respectively proportion al to the Y and Z measurements of the equipment Among other things this enables Connection to an analog acquisition chain Visualization of positions on an oscilloscope Use ofthe sensor for analog controls These outputs are obtained by a digital analog conversion of the values cal culated by the controller This conversion is carried out in real time at a frequency of 2000 Hz It imposes the following limits Resolution limitation 0 5 increment Further measurement distortion 0 596 Extra noise 1 mV rms measured with a load of 1 MQ e Maximum offset 50 mV typical e Discrepancy equivalent to a pure delay of 1 1 msec without integration e Attenuation equivalent to the one of an order 1 low pass filter with 600 Hz cutoff frequency The output voltages take into account the averaging defined by INTG The full scale voltage variation 10 V matches the full scale measurement vari ation i e a scale factor of 5 mV increment A multiplying factor defined by GAIN 1 to 200 makes it possible to change this scale factor from 5 to 1000 mV increment The gain comes with a limi tation of the angular range that can be visualized outputs limited at
39. UTION Situation has the potential to cause damage to property or equipment NOTE Additional information the user or operator should consider gt Newport EDH0170En1020 07 11 viii Experience Solutions LDS1000 Controller for Laser Diode Sensors Warnings WARNING CERTAIN SAFETY PRECAUTIONS MUST BE RESPECTED BEFORE ANY INTERVENTION ON THE LDS1000 CONTROLLER IN ORDER TO COMPLY WITH SAFETY STANDARDS CONCERNING THE USE OF THIS EQUIPMENT THE USER MUST TAKE THE FOLLOWING PRECAUTIONS AND RESPECT THE WARNINGS THAT APPEAR LATER IN THIS MANUAL WARNING GROUNDING LDS1000 is a PIECE OF EQUIPMENT DESIGNED TO BE CONNECTED BY A NON INDUSTRIAL PLUG e User safety is ensured by grounding the equipment The user must check the conformity of his electrical installation e The equipment must be connected to the power supply with a CEE22 type cable that complies with the EN60950 standard Contact your electrician to check the connections of your plugs All the sockets that are near your equipment must be equipped with a ground connection Any break in the ground connection can lead to an electric discharge WARNING CONNECTING ADDITIONAL EQUIPMENT Additional equipment can be connected to the LDS1000 Controller com puter oscilloscope etc The connection cables carry VERY LOW VOLTAGE The user must make sure that the equipment connected and the cables used comply with EC standards WARNING LDS SERIES
40. alues Ycoef Zcoef Yincr and Zincr for result display in prad In general Yincr and Zincr are equal to 1 The resolu tion of the display is then 0 1 prad To display the result in arc sec 1 arc sec 4 85 prad 1 prad 0 2062 arc sec Thus Y prad 0 20 x 1 0309 x Y arc sec Thus we will use the increments Yincr 0 2 and Zincr 0 2 That gives dis play limits of 400 to 400 The values Ycoef and Zcoef are corrected by 1 0309 Ycoef Ycoef x 1 0309 rounded to the nearest unit Zcoef Zcoef x 1 0309 rounded to the nearest unit The unit sec will be chosen You are advised not to delete the initial parameters in prad You only need to program a new sensor number Programming a New Sensor When an LDS Vector autocollimator is delivered with its electronic con troller the sensor parameters are fed into the memory of the controller The number 0 is used for the current sensor The other memories are normally empty and the values of the parameters are therefore equal to the default values To program a new sensor a spare place must be found generally recogniz able when S N 000000 You can choose to delete an existing sensor Access to the mode that enables rapid visualization of the various heads is obtained by the sequence MAIN gt CONF F4 gt HEAD FD gt CHGE F3 HEAD NUMBER B SET VISU It is then possible to modify the number of the current sensor ses F2 Previous number
41. antly carries out acquisitions at a rate of 2000 values per second These acquisitions are dealt with on request transformation of electric sig nals into metrological values for display or emission on a connection Depending on the programming of the electronic controller the returned value corresponds either to the last acquisition carried out no average or to the average of the last N acquisitions D Newport 8 Experience Solutions LDS1000 Controller for Laser Diode Sensors In the second case a low pass digital selection is carried out which reduces the noise The noise reduction evolves like the square root of the number N of aver aged samples which is itself equal to the averaging time to acquisition peri od ratio The acquisition period is always equal to 0 5 msec 2 kHz The duration of the averaging is fixed by the integration constant that can be parametered INTG Refer to the user s manual of the LDS sensor concerned 4 4 Offset Coefficient Adjustment The Yofs1 Yofs2 Zofsl and Zofs2 coefficients are normaly set to zero value When the reflected light is becoming low because of poor reflectivity or small mirror aperture it is necessary to take into account the value of the electronic offsets of the detector The LDS1000 Controller is designed to make this correction very easily by introducing offset coefficients into its memory The following procedure must be accomplished The values
42. ate return from the LDS1000 Controller For example the SP50 command that sets the sampling period at 50 msec Incorrect commands create an error Only the last error code is stored in the memory This code will be reset at no error when it is read again In every case to find out whether the command has been correctly per formed test the status of the controller using the TB command Reading the error The list of commands recognized by the LDS1000 Controller are given later in this manual You are advised to read the description of a command care fully before using it Programming Conventions Access to Interface Mode is only driven by the computer MR com mand e Access to Interface Mode is only possible if the controller is in its main menu e When the controller is in Interface Mode none of the keys on the front panel are valid e The axes called Y and Z on the display correspond respectively to num bers 1 and 2 of the Interface Mode commands e The result matrices are numbered starting at 1 The first value in the memory is marked value 1 e The measurements transmitted by the controller have the same format as the values displayed They take into account the units used for the selected sensor e The Interface Mode output is activated by computer ML command D Newport Experience Solutions 37 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors 10 4 List of Commands Commands Liste
43. ational instruments give an example on how to conduct a serial poll SRQ and Serial Polling with NI 488 Device Functions The following example illustrates the use of the ibwait and ibrsp functions in a typical SRQ servicing situation when automatic serial polling is enabled include decl h char GetSerialPollResponse int DeviceHandle char SerialPollResponse 0 ibwait DeviceHandle TIMO RQS if ibsta amp RQS printf Device asserted SRQ n Use ibrsp to retrieve the serial poll response ibrsp DeviceHandle amp SerialPollResponse return SerialPollResponse y The LDS1000 Controller is an IEEE 488 device in which the SRQ is always enable It will respond accordingly to the National Instruments example When the queried data will be ready the LDS1000 will assert the SRQ line and in the serial poll response bit 6 will be set Requesting service and bit 7 manufacturer defined will be set Message Availiable After that you can use the ibrd command to retreive the data from the LDS1000 D Newport Experience Solutions 65 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors gt Newport EDH0170En1020 07 11 66 Experience Solutions Service Form Your Local Representative Tel Fax Name Return authorization Please obtain prior to return of item Company Address Date Country Phone Number P O Number Fax
44. brating or moving system spread out over time The display is frozen and the two values that correspond to the same instant are available on the screen Yao ee R D MAL z Ha g RAD F It is therefore possible to read them without haste this is a flying spot pic ture of a position MAIN F5 Return to main menu FUN F4 Normal display M F4 Freeze the display Offset Origin MAIN gt MENU F5 gt ZERO F2 This mode also called relative display makes it possible to set the current point as the origin The values displayed are therefore given in relation to this point This mode is practical to find out the angular distance between two given positions without having to adjust the zero point to the center of the sensor Y 185 3 RAD g ES RAL However it is necessary to make sure that you do not go beyond the min and max limits on the cell You are advised to set the first point near the center of the sensor F5 Return to main menu F4 Freeze the relative display RUN F4 Relative display 17 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors Integration Constant SIN gt MENU F5 gt INTO F3 The accuracy that can be obtained on a measurement depends on the num ber of readings carried out for that measurement In manual mode the LDS1000 electronic controller carries out measure ments at a frequency of 2 kHz Its own resolution at this frequenc
45. ctronic controller is designed to receive signals from an LDS Vector autocollimator The following precaution are necessary if it is to work correctly e Make sure that the mains current matches the characteristics of the autocollimator e Make sure that the mains plug is grounded Do not cause a short circuit between the connector terminals of the communication e Use the cables supplied by NEWPORT e Cut the power supply to the controller when making a connection Do not connect the BNC terminals of the logical inputs outputs to an electric power supply Do not try to connect a sensor other than the one supplied by NEWPORT Maintenance Clean the electronic controller with a soft cloth and a little alcohol while powered off 59 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors EDH0170En1020 07 11 11 3 Cables SENSOR Y amp Z CONNECTOR OUTPUTS IEEE 488 90VAC 264VAC 50 60Hz 1A N CE MICRO CONTROLE CIN SENSOR oor id IEEE 488 TE Newport TRIG PWOK SERIAL fuses fusibles TIA 250V I TRIG PWOK 232 INPUT OUTPUT ARE RS 232 C Cables WARNING Use a standard commercial cable or the cable supplied with the DLS1000 Controller sheathed cable that is lt 3 meters in length IEEE 488 Cable LDS1000 Computer Sub D25 male Sub D9 fe
46. d by Category System Management Command Description ML Set Manual mode MR Set Interface Mode RD Frozen display RE Active display RS Reset system TB Read error TE Read error code TS Read operational status VE Read Soft version Reading Current Sensor Parameters Command Description TA Read current sensor parameters TN Reading sensor number and series number Classical Acquisitions Command Description KI Define the integration constant TP Read current measurement XI Read integration constant Dynamic Acquisitions Command Description MS Read acquisition status SP Define sample period ST Stop current acquisitions TK Acquisitions with trigger on TRIG input TM Immediate acquisitions TQ Acquisitions with synchronization on TRIG input TT Re read acquisitions XN Read number of measurements in memory XS Read sample period Reading Logical Inputs Outputs Command Description RB Read TRIGG input status RO Read PWOK output status D Newport Experience Solutions EDH0170En1020 07 11 38 LDS1000 Controller for Laser Diode Sensors Commands Listed in Alphabetic Order Command Description KI Define the integration constant ML Set Manual mode MR Set Interface Mode MS Read acquisition status RB Read TRIGG input status RD Frozen display RE Active display RO Read PWOK output status RS Reset system SP Define sample period ST Stop current acquisitions TA Read current sensor param
47. d of the value mea sured on the given axis Y 2088 8 FRAC MENU a AEN 2 0000 0 KRAD CONF See paragraph Alignment Other possible messages INTERNAL ERROR 9113 LASER ERROR LASER ERROR This message indicates a connection error in the optical head or a laser diode emission fault This message indicates that the controller is connected to a computer on which software is running which has sent the command to freeze the dis play Reset the software parameters to regain control GE NA TAN Vani This type of message indicates for controllers equipped with analog options that the analog output mode is active Press the MAIN key to return to the main menu Alignment To visualize an angular measurement make sure that the return beam pen etrates the LDS Vector autocollimator and that the return energy is power ful enough The procedure for rapid set up is explained in the user s manual supplied with each instrument D Newport Experience Solutions 1 1 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors m Configuring the Equipment EDH0170En1020 07 11 6 1 6 2 The controller is configured in manual mode using the buttons and the dis play available on the front panel of the LDS1000 Controller This must be done before the instruments can be used Sensor Configuration The LDS1000 electronic controller works with an L
48. diode and to the pre amplifying electronic controller Monitor break down and defects Collect the return signals from the analog sensor This data is processed by the controller corrected according to the para meters provided by calibration and usable depending on the different modes display memorization transmission to the computer interface analog output available as an option 3 2 Electronic Controller The LDS1000 Controller performs e Fast acquisition at a set frequency of 2 kHz e Analog to digital conversion Correction and integration calculation e Memory and display management Its technology is based on a 68000 16 MHz microprocessor This controller offers a clear display of the values measured on a luminous screen and communication via RS 232 C and IEEE 488 interfaces One particular model is available with calibrated analog outputs that are proportional to the values measured D Newport Experience Solutions 5 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors m Specification The LDS1000 electronic controller works with the LDS Vector electronic autocollimator Characteristics of the optical head are given in the individ ual manuals The measurement results can only take on their full meaning in relation to a unit that represents the value to be measured distance angle The controller enables the result to be displayed on the unit that corresponds to the senso
49. e Sample Period MNL SPnn nn SP50 TB TE TK TM B RMT ACT Sample period in milliseconds nn 0 5 to 32000 msec by steps of 0 5 msec Possible errors nn absent nn 0 5 msec nn off limits nn Nearest authorized value Sets the sample period to nn milliseconds for TM and TK func tions None Execution not allowed Setthe sample period to 50 msec Read error Read error code Acquisitions with trigger on TRIGG input Immediate acquisitions D Newport 46 Experience Solutions LDS1000 Controller for Laser Diode Sensors sr Stop Work in Progress Use MNL B RMT B ACT Syntax ST Parameter None Description Stop work in progress acquisition launched by TK TM or TQ Response None Error D Execution not allowed Example ST Stop the work in progress and carry on NOTE The ST command stops the acquisitions in progress without deleting the memory The measurements performed up to receiving this command are stored in the controller s memory The XN parameter keeps its value The command xxTT makes it possible to read the values stored if xx is lower than XN Related commands TB Read error TE Read error code TK Acquisitions with trigger on TRIGG input TM Immediate acquisitions TQ Acquisitions with synchronization on TRIGG input TT Proof read acquisitions XN Read number of measurements in memory D Newport Experience Solutions 47 ED
50. e Sensors 6 0 Configuring the Equipment 12 6 1 Sensor Configuration eroi nien RED RETE dad 12 6 2 Interface Configuration ss 12 15 232 Interface oomen out re P Te t vean sh rums ee E ois 12 IEEE 488 IntetfaCe ie eh teen t n E vi nies 13 6 3 Controller Configuration 13 6 4 Analog Output Configuration 14 7 0 Off Line Use Manual Mode 15 7 1 Access to Manual Mode 15 1 4 Manual Mode Function 2 mo err DER RE rr Hd 16 La Measuring Punctiolis 5 6o iia 17 Dis play EreGeze eee eter rere ete eere de dar e eee ende e 17 Offset Origin iiie uet RH e RO ERR E CERE EUER ERE ER URS dead 17 Integration Constant esien enera cet it edere et reir tree de crie tes 18 Graphic Display 4 222 enr n reb o n e o ET PRSE 18 Display Light Received ses 18 Maintenance Mode sereine 19 7 4 Configuration Functions ss 19 Parameter Input of the Current Sensor or the Memorized Sensors 19 Selecting the Number of the Current Sensor 19 Modification of Current Sensor Parameters 20 Display of Result in Arc Seconds LDS Vector 22 Programming a New Sensor ner 22 Visualization of Current Sensor Parameters 23 Communication Parameter Input 23 Modification of RS 232 C Parameters 24 Modification of IEEE 488 Parameters esee 24 Default Values of Communication Parameters
51. e character CR LF CRLF LFCR The space characters will be deleted on reception gt Newport EDH0170En1020 07 11 36 Experience Solutions LDS1000 Controller for Laser Diode Sensors The core of each command is made up of two letters For example MR Set remote mode The parameters associated with the command are Either the full digital values preceding the command core They usually indicate the address or the number where the information should be looked for For example 42TT Reading the measurement number 42 e Or the decimal digital values using a separating dot according to the central core They correspond to a value transmitted to the controller to modify the parameter concerned For example TM152 Launch the acquisition of 152 measurements The commands received by the controller are stored in a communication buffer of 255 characters The controller carries them out chronologically by emptying this buffer memory The ASCII chains transmitted from the controller to the computer are the following e Generally they start by copying a part of the message sent e They are followed by the value or values of the response parameter e Commas are used to separate For example when the 1TP command is sent which requests the value measured on axis 1 the controller returns the chain ITP 1596 3 which indicates that the value measured on axis 1 is 1596 3 Certain commands do not gener
52. e e uds 3 Analo Mode 2 reete tette turns iei ee eee hee Cole eee tinus 3 2 3 Available Versions ep seas dte ener ee ie E Ree Aer 3 Controller tcr em de e e re YR ee edis 3 DONS OF qM 4 Accessories and Additional Equipment Kits ssesssse 4 ZA Dimensions etre ic ier e a eir WE ve UR e Bite otl 4 3 0 Principle of Operation 5 31 Laser Diode SensOrS arenen iei tee e i p PR HR Pis os 5 3 2 Electronic Controller raptor tei re pa ER Riv de 5 4 0 Specification 6 4 G n ral Characteristics iioc men Gtien renerne 6 LDS Vector Optical Head 6 LDS1000 Controller nn ices anid ded ie needs 6 MEASUTEMENES RAR en E A red be TE eects 6 Environment AM e OE AE CE E XS CR 7 RS 232 C and IEEE 488 Interfaces 7 Analog OUP Seeniorid dd iiti Te Erie pet un 7 42 Validity of Specifications le es inaa 7 Calibration aei REPRE a ROTER E Aa E NEEE 8 4 3 Noise R duction oen itae re erede Oa 8 4 4 Offset Coefficient Adjustment 9 5 0 Starting the Equipment cc 10 541 Settirig UD iecit to ccr To eo t e e FO rr ELA RR RE Dr 10 Monting ee 10 52 Electric ConneCtionS 214imnrementonedenniseeniinenilemeniens 10 bid Power UD erreen a E nen 11 Power Up Messages ironiei tee rene E ES 11 ALOMMENE usandhed 11 QD Newport Experience Solutions iii EDH0170En1020 07 11 LDS1000 Controller for Laser Diod
53. e sure that the rate of light returned to the sensor is sufficient This mode is especially useful for setting up the instrument in complex assemblies in order to avoid substan tial vignetting The best results are obtained when a maximum amount of light is received ND Newport EDH0170En1020 07 11 18 ce Soluti LDS1000 Controller for Laser Diode Sensors The display is in in relation to the nominal value established at 100 MAIN F5 Return to main menu Maintenance Mode MAIN gt MENU F5 gt NEXT P gt TEST F2 Here the brut value of the 4 channels of the analog digital converter from the sensor is displayed Interpreting the values depends on the sensor that is in place Their read out enables the sensor s electronic offset to be cor rected SY Bosse ehee PEN SZ Jels HERE MAIN F5 Return to main menu 7 4 Configuration Functions Here we find the way to parameter the following elements e Parameter input of the sensor used e Parameter input of the controller e Interface parameter input Parameter Input of the Current Sensor or the Memorized Sensors AIN gt CONF F4 gt HEAD FI This mode displays the number of the current sensor currently valid and provides access to the following menus OTT FD Modification of current sensor parameters VTS F2 Visualization of current sensor parameters LHGE F3 Choosing another current sensor MAIN F5 Return to main
54. erated by the LDS1000 Controller ASCII character stored in error register The error register is reset when read with TB or TE Only the last error encountered can be read again Response TEaa aa Current Error Code Error messages No error Unknown message code Incorect axis number Parameters out of limits Execution not allowed Variable is out of range ROUVUIADS Communication time out Errors D Execution not allowed S Communication time out Example TE Read error code TE No error Related command TB Read error D Newport Experience Solutions 49 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors ES Acquisition on External Trigger Use MNL B RMT ACT Syntax xxTKnn Parameters nn 1 at NBMAX Number of measurements to be performed NBMAX Max number of measurements related to the memo ry installed Possible error nn outside authorized interval Error C xx 1 to nn Number of the measurement synchronized on trigger pulse TRIGG input Possible error nn outside authorized interval Error O Description Performs an acquisition of nn measurements as the measure ment xx is synchronous with the trigger signal the acquisi tions are stored in a revolving memory of xx values while awaiting trigger signal The acquisition period is given by SP The integration constant set by KI is used The number of the acquisition in progres
55. erience Solutions RE Set Active Display Mode MNL E RMT B ACT RE None Enable display in remote mode The response times related to display refresh may appear None D Execution not allowed RE Active display RD Frozen display TB Read error TE Read error code RO Read PWOK Output Status MNL E RMT B ACT RO None Read the status of the PWOK output The return value will be equal to 0 or 1 depending on whether the interface is in high or low status ROnn nn status of the PWOK output D Execution not allowed S Communication time out RO Request status of TRIGG input ROO The PWOK output is in low status NOTE The PWOK output is in status 1 if the sensor receives a sufficient quantity of light to carry out the measurement This logical output is available on the rear panel of the LDS1000 Controller TB Read error TE Read error code 45 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors Use Syntax Parameter Description Response Error Example Related commands Use Syntax Parameter Description Response Error Example Related commands EDH0170En1020 07 11 Rs Reset System MNL RS D RS TB TE B RMT B ACT None Stop work in progress and carry out a RESET on the LDS1000 electronic controller None Execution not allowed Reset system Read error Read error code EJ Defin
56. es ei terti eea 38 Dynamic Acquisitions s v xoiioaocr mo D ROO NO OT 38 Reading Logical Inputs Outputs eee 38 Commands Listed in Alphabetic Order 39 10 5 Description of Commands ae 39 KI Define the Integration Constant sse 40 ML Return to Local Mode 41 MR Set Interface Mode seen rene en en 42 MS Read Acquisition Status 43 RB Read TRIGG Input Status ss 44 RD Set Frozen Display Mode sauteres 44 RE Set Active Display Mode 45 RO Read PWOK Output Status 45 RS R set SySbteImnisceensartiin utere a etie tre pia deed 46 SP Define Sample Period ssepe tete ee Fiere e Eee 46 ST Stop Work in Progress 4 eniin RPG ORO RU 47 TA Query Sensor Parameters eee 48 TB Error Description ise RE EEG RE a 48 TE Read Error Code erre eee eon e ee E 49 TK Acquisition on External Trigger seseeeeeee 50 TM Immediate Acquisition 51 TN Read Number of Selected Sensor ss 51 TP Read Current Position 52 TQ Acquisition on External Signal 52 TS Read Operational Status ses 53 TT Read Measurements Saved sese 54 VE Read Internal Program Version eere 55 XI Read Integration Constant esee 55 XN Read Number of Stored Measurements sss 56 XS Read Sample Period 56 10 6 Error Mess ges eerie rine i epe riri ee d d e
57. eted and the information contained in the chain of characters received must be recognized values measured sensor status various parameters A properly structured program will include sub programs that carry out these basic functions Be particularly careful when writing these modules that are essential for the proper operating of the final program In all cases e The first order to be sent to the controller is the MR command that acti vates the controller in Interface Mode e If the communication is correct the controller displays In other cases check that The controller is switched on It is working in Main menu if not cf manual mode e The physical connection is correct e The communication parameters are correct The syntax sent is correct Theinitialization of the interface is properly carried out The reading sub program should then be tested using for example the VE command which requests the software version of the LDS1000 Controller The response must be an ACSII chain of type VE LDS1000 CONTROLLER VERSION 3 0 If their is no response carefully check the structure of the reading sub pro gram Structure of Messages to the Controller The ASCII chains transmitted by the computer must match the commands understood by the LDS1000 Controller Each message transmitted may include several different commands separated by commas or semi colons and will end with the appropriat
58. eters TB Read error TE Read error code TK Acquisitions with trigger on TRIGG input TM Immediate acquisitions TN Read sensor number and series number TP Read current measurement TQ Acquisitions with synchronization on TRIGG input TS Read operational status TT Proof read acquisitions VE Read software version XI Read integration constant XN Number of measurements in memory XS Read sample period 10 5 Description of Commands The rest of the manual presents the commands recognized in Interface Mode by the LDS1000 Controller The format of one page per command is used to make it easier to look for the correct syntax The commands are listed in alphabetic order For each command you will find the following information gt Newport Experience Solutions The modes in which the following can be carried out if not gt error D E MNL for manual mode E RMT for remote mode or Interface Mode Bl ACT for active acquisition in progress Its syntax Its parameters and the errors if they are incorrect Its description Its response The related errors An example comment if necessary The commands related to that command 39 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors Use Syntax Parameter Description Response Error Example m Define the Integration Constant MNL B RMT ACT KInn nn 0 1 2 5 10 20 50 100 200 500 1000
59. f or Zcoef minimizes linear errors in the direction concerned It is a multiplying factor of the display Yincr Zincr Counter increment for the axis Y or Z The resolution of each sensor is limited by physical factors electronic noise enlargement etc The value of Yincr or Zincr given is adapted to the sensor delivered It is a multiplying factor of the display Different measurement limits correspond to each increment value 0 1 199 99 199 99 5 9999 5 9999 5 0 2 399 98 399 98 10 19999 19999 0 5 999 95 999 95 20 39998 39998 1 1999 9 1999 9 50 99995 99995 2 3999 8 3999 8 Yunit Zunit Unit displayed for the axis Y or Z It is the unit for which the sensor parameters are established Yofs1 Yofs2 Zofs1 Zofs2 Electric offset values These values enable the sensor resolution to be refined while taking into account a possible offset reading The correct values are achieved in TEST mode In ED T T mode the values of the parameters stored for the current sensor can be modified As a precaution a confirmation message asks whether you really want to modify the current sensor and specifies the number MODIFY HEAD NO VES SYN Vd Sei EC rate MEXT gt Newport 20 Experience Solutions LDS1000 Controller for Laser Diode Sensors For all the parameters a modification menu uses the following functions gt Newport
60. he instrument gives accurate measurements BEFORE any measuring operation the operator must make sure that the parameters that are used by the electronic controller are the ones that the instru ment is designed to use Refer to the corresponding chapter to check and modify the sensor parameters RECOMMANDATIONS You are strongly advised to read the chapter entitled First use careful ly before connecting your autocollimator 2 Description The LDS1000 Controller is designed to drive sensors of the NEWPORT LDS series for example LDS Vector autocollimator or STR500 H rectitude sen sor The latter are compact and self contained measuring instruments The LDS1000 electronic controller provides the means of displaying angu lar variations by measuring the movement of a spot of light on a position sensing device It has the capacity off line to store up to 2048 measure ments 14336 measurements with the extended memory option and to cal culate the averages of these measurements When linked to a personal computer it provides the possibility of process ing and recording the measurements This manual is designed to facilitate the use of the LDS1000 Controller for all its modes of operation A dedicated user s manual exists which describes and facilitates the use of the LDS Vector sensor D Newport Experience Solutions 1 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors Equipment The LDS10
61. hecked and that the connection is established The LDS TOOLS program is useful for checking the material configuration refer to the pre vious chapters We will also presume that the first lines of the program contain adequate parameter commands that enable the computer interface to be configured in the mode chosen The information on this point is contained e In the instructions for the programming software used Basic instruc tions for example e Inthe manual of the computer used Possibly in the instructions for the IEEE 488 card chosen Whichever protocol is used RS 232 C or IEEE 488 the communication logic with the LDS1000 Controller is the same 35 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors The computer sends a chain of characters to the controller that may then e Respond with a return chain e Carry out a modification or a function without necessarily responding e Not respond and not react message is not recognized The communication software must be able to generate ASCII messages refer to syntax in the description of recognized commands It must also use a send command for this message on the current interface refer to syntax in the supplier s instructions for the programming software It must then be able to read the return message or wait for this message refer to syntax in the supplier s instructions for the programming software Finally the message must be interpr
62. le if the computer is equipped with an IEEE 488 communication card Several models are available on the market RECOMMANDATION NEWPORT recommends the National Instrument AT GPIB TNT card for its software An IEEE 488 cable is required for the interface between the LDS1000 Controller and the IEEE 488 card The cable is symmetrical and allows sev eral instruments to be chained This is the advantage of a parallel interface When setting up make sure the support screws are properly tightened The communication must be obtained with a program Read the software documentation to configure the parameters of the IEEE 488 output It is rec ommended as far as possible to select the following parameters that are the LDS1000 Controller s default parameters e MSG TERM CRLF e PRIM ADRESS 15 e SECOND ADRESS 00 e TIME OUT 0 5 sec The controller operates the IEEE 488 interface in SRQ mode the controller status can be read with the SPOL function of the IEEE 488 card This status is coded by an 8 bits word bit 7 of which value 128 is worth 1 if a mes sage is near The reading must always be carried out before a new request D Newport Experience Solutions 33 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors 10 2 EDH0170En1020 07 11 Start up the LDS1000 Controller and check in manual mode the interface parameters by selecting the IEEE 488 protocol TN gt CONF F4 gt COMM F2
63. mal 2 TZD qe tribes 3 TxD SXRXD Y assi aniio neeeis 2 RxD 1 GND aimants 5 GND or LDS1000 Computer Sub D25 male Sub D25 femal 2 CT XD iiia 2 TxD 3 RED ss sanne 3 RxD T GND ai i 7 GND WARNING Use a standard commercial cable 60 D Newport Experience Solutions LDS1000 Controller for Laser Diode Sensors Sensor Interface Cable SENSOR Connector WARNING Only use the cable supplied with the NEWPORT LDS Vector Analog Output Cables OUT Y amp OUT Z Connectors WARNING Use sheathed commercial cables that are lt 3 meters in length Measurement Synchronization Input Cable TRIG Connector WARNING Use sheathed commercial cable that is lt 3 meters in length Beam Signal Output Cable PWOK Connector WARNING Use sheathed commercial cable that is lt 3 meters in length gt gt gt QD Newport Experience Solutions 61 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors s Appendices A EDH0170En1020 07 11 Example of Program Using RS 232 C Link LDS1000 EXAMPLE SOFTWARE Microsoft Quick Basic V4 5 CLS initialisations RS 232 COM 1 with standard parameters CHAINES COM1 9600 N 8 1 CS DS CD OP3000 OPEN CHAINES FOR RANDOM AS 1 LDS1000 in remode remote ev MR PRINT 1 ev Example Loop on Position Reading env TP LOCATE 5 10 PRINT LAERS1 exemple software LOCATE 18 10 PRINT
64. mmunication with the computer When the analog outputs have been chosen and the controller is switched off the controller memorizes this status When the controller is switched on the analog mode is reactivated The LDS1000 Controller operates like a standard analog instrument and can be perfectly integrated into classical acquisition chains The configuration parameters of the analog outputs are the following INTG Integration constant in msec Like the digital version the value available at the output is obtained by a sliding average of a given number of values measured at maximum frequen cy With this parameter a frequency filter adapted to the signals that you wish to obtain can be selected GAIN Choice of output gain The output voltage is between 10 volts and 10 volts When the gain is 1 the voltage of 10 V matches the highest limit of the measurement range When the gain is 10 the same voltage only corresponds to a tenth of the highest limit of the measurement range With a gain of 1 the resolution of 1 increment supplies a voltage of 5 mV It increases to 50 mV for a gain of 10 The ANL 5 F4 menu provides access to the analog outputs that are immediately available on the rear panel In addition it displays the current parameters The first value is the value of the integration constant used the second value is the value of the gain D Newport Experience Solutions 2 T EDH0170En1020 07
65. n by SP The integration constant set by KI is used The number of the acquisition in progress is given by XN XN is equal to nn when the series of acquisitions is finished Response None Errors C Parameter out of limit D Execution not allowed Example TM100 Launch the acquisition of a series of 100 measurements Related commands KI Define the integration constant TB Read error TE Read error code SP Define sample period XN Read number of measurements in memory ES Read Number of Selected Sensor Use MNL E RMT B ACT Syntax TN Parameter None Description Read number of sensor selected by the user Response TNxx yy xxisthe number of the selected sensor 0 to 9 yy is its series number Errors D Execution not allowed S Communication time out Example TN Request the number of the sensor selected TN5 151232 Sensor number 5 is selected its series number is 151232 Related commands TB Read error TE Read error code gt Newport Experience Solutions 51 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors EJ Read Current Position Use MNL B RMT B ACT Syntax xxTP Parameter xx Number of axis to be read xx 1 for Y and xx 2 for Z xx missing or xx 1 and xx 2 Read two axes Description Read current position Response xxTPnn or 1TPnn1 2TPnn2 Errors D Execution not allowed S Communication time out Example TP Request position 1TP4 5 2TP 1254 6 Y
66. not modify the equipment in any way Should the equipment require servicing or repairs send it back to our head office WARNING UNPLUGGING Systematically disconnect the plug in all the following cases If the power supply lead or any other cable is damaged or frayed If the mains socket is damaged in any way f the equipment has been exposed to rain to excessive humidity or if any liquid has been spilt on it If the equipment has fallen or if the unit is damaged If you think that the equipment requires servicing or repairing When you clean the unit NEWPORT SHALL NOT BE HELD LIABLE IF THE ABOVE MENTIONED WARNINGS ARE NOT RESPECTED gt Newport EDH0170En1020 07 11 X Experience Solutions LDS1000 Controller for Laser Diode Sensors Controller for Laser Diode Sensors LDS1000 m Introduction This manual describes the operations and conditions necessary for the proper use and working of the NEWPORT LDS1000 Controller It also provides the basic maintenance operations that are useful to keep the instrument in good working order IMPORTANT NEWPORT LDS series sensors are measuring instruments that provides results of measurements The calibration certificate drawn up by NEW PORT for each delivery or when an instrument is newly calibrated must ALWAYS be supplied with the sensor It provides the values of the para meters that must be stored in the memory of the LDS1000 electronic con troller so that t
67. ntroller s internal memory of a number N of points at the frequency F e Acquisition in the controller s internal memory of a number N of points at the frequency F the beginning of the acquisition is started by an external signal Trigger e Acquisition in the controller s internal memory of a number N of points each acquisition being started by an external signal Trigger Refer to the chapter entitled Use with a computer interface Analog Mode Analog outputs are only available on models that are equipped with this option This must be specified at the time of ordering There are two voltages at the analog outputs that are respectively propor tional to the angular measurements Y and Z of the equipment This enables e Connection to an analog acquisition chain e Visualization of positions on an oscilloscope Use of the LDS Vector autocollimator for analog controls These outputs are obtained by a digital analog conversion of the values cal culated by the controller This conversion is carried out in real time at a frequency of 2000 Hz Refer to the chapter entitled Off line use 2 3 Available Versions Controller The electronic controller is available in eight versions that offer different measuring possibilities The references are as follows LDS1000 Controller LDS1000 OPT BB CC with BB NN No cable 01 Cable length 5 meters 02 Cable length 10 meters CC NN No controller 02
68. ommunication parameters RS 232 C IEEE 488 RACK Information on the software version the available memory and the display brightness dL Commutation to analog outputs only if the option exists Modification of current parameters VIS Visualization of current parameters NEXT Information on the software version the available memory and the display brightness STD Reset with default values CET Save modifications after E T T YE Message confirmation NO Abandon 7 Scrolling of modifiable parameters or cursor movement Next highest value 1 for digital values Lower value 1 for digital values N Return directly to main Menu After any modification the configuration will be saved when the equipment is switched off gt Newport EDH0170En1020 07 11 16 Experience Solutions LDS1000 Controller for Laser Diode Sensors 7 3 A Newport ce Soluti MASTER RESET On switching on if you press the F5 key for a few seconds the controller suggests changing all the parameters to default values LOS ee NE MASTER Reset re YES Selecting Y 3 F4 key will destroy all the data fed into the controller and will replace all values with default values Measuring Functions Access to measuring functions from the main menu is done with the F5 key Display Freeze AEN gt MENU F5 gt MEMO FD The display freeze is useful when carrying out measurements of a vi
69. ondary address e TIME OUT Wait time The IEEE 488 interface enables several different instruments to be connect ed to the same computer input It is quicker than the RS 232 C interface For this connection the controller operates in SRQ mode The parameters of the two communicating instruments must be identical to obtain the communication in fact the two instruments must speak the same language in order to understand each other The LDS1000 Controller is con sidered to be a slave in the communication protocol Its parameters must therefore be chosen in accordance with those of the master computer Cf Chapter entitled Off line use 6 3 Controller Configuration The LDS1000 Controller has a program and material configuration that depends on the options chosen at the time of ordering In particular the internal software version the size of the memory installed and the installa tion of the analog output option represent information that is accessible in manual mode Moreover so that you can comfortably use the controller in different atmospheres the brightness of the light can be adjusted Accessible functions e Reading the version Display brightness Memory size e Analog output option Refer to the chapter Off line use D Newport Experience Solutions 13 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors EDH0170En1020 07 11 6 4 Analog Output Configuration
70. ory size expressed in the number of measurements that can be stored one mea surement is a couple of Y Z values Reading the Analog Output Option MAIN gt CONF F4 gt RACK F3 gt NEXT F4 gt NEXT F4 gt NEXT F4 Only possible with controllers that have the analog output option The display of this menu shows whether this option is present on the con troller concerned For more details on analog outputs refr to the corresponding paragraph gt Newport EDH0170En1020 07 11 26 Experience Solutions LDS1000 Controller for Laser Diode Sensors m Analog Output Parameter Input 8 1 Selecting Analog Outputs if option present IN gt CONF F4 gt ANLG F4 The analog outputs are a material option that must be specified at the time of ordering They can be installed later on but you will need to contact our after sales service MA When the analog outputs are activated the OUTY and OUTZ connectors located on the rear panel of the controller give two voltages that are pro portional to the digital values calculated by the controller The analog out puts take into account the real calibration performed on the current sensor and provide the reliable values that can be used directly The refresh fre quency of the analog outputs has been set at 2 kHz which enables events to be seized rapidly Thus when the analog outputs are active the controller no longer manages the display or the co
71. perience Solutions 41 EDH0170En1020 07 1 1 LDS1000 Controller for Laser Diode Sensors Use Syntax Parameter Description Response Error Example Related commands EDH0170En1020 07 11 MR Set Interface Mode E MNL MR MR SABE TE O RMT ACT None Set Interface Mode from Manual mode manual mode in main menu None Execution not allowed Set Interface Mode REMARQUE The controller then displays LDS1000 REMOTE MODE Set manual mode Frozen display Active display Read error Read error code D Newport Experience Solutions LDS1000 Controller for Laser Diode Sensors Use Syntax Parameter Description Response Errors Example Related commands QD Newport Experience Solutions ES Read Acquisition Status MNL MS MSaa MS MS TB TE E RMT None B ACT Read acquisition status The return value is an ASCII character the code of which should be translated into binary Bit0 e Bitl e Bit2 e Bit3 e Bit4 e Bit5 e Bit6 e Bit7 0 Correct power received 1 Incorrect power received 0 Correct position 1 Incorrect position 0 Acquisition not started up 1 Acquisition started up TRIGG wait 0 No acquisition in progress 1 Acquisition in progress aa is an ASCII character Execution not allowed Communication time out Read acquisition status
72. r used 4 1 General Characteristics LDS Vector Optical Head Wavelength Peak power Modulation Beam diameter Beam direction Equivalent focal length Beam divergence Ocular field Measurement range Weight LDS1000 Controller Microprocessor Display Interfaces Measurement memory Analog output TTL TRIGG input TTL PWOK output Power supply Consumption Measurements EDH0170En1020 07 11 Digital resolution Measurement range Measurement error Max measuring noise Sampling frequency Digital integration 670 nm lt 1 mW 10 kHz 31mm lt 0 5 mrad in relation with autocollimator body 280 mm 0 1 mrad 15 mrad 2000 prad 1 065 kg 68000 32 bits 16 MHz 2 x 20 characters adjustable brightness RS 232 C and IEEE 488 2048 spots or 14336 spots depending on the option Available as an option Measurement synchronization Beam signal 90 264 VAC 50 60 Hz 30 VA 0 1 prad 2000 prad 1 0 02 x measurement prad i e 2 0 02 prad VHz 2000 Hz from 0 5 msec to 1 sec D Newport Experience Solutions LDS1000 Controller for Laser Diode Sensors Environment The performances of an optical sensor greatly depend on the conditions in which it is used The contractual characteristics are specified in the manual that goes with each sensor of the LDS series The operating limits of the LDS1000 Controller are the following e Operating temperature 15 C to 25 C e Humidity 10
73. racter Description No error Unknown message code Incorect axis number Parameters out of limits Execution not allowed Variable is out of range Communication time out Mi O T Q wl gt Reading the error message resets the error memory to Examples of Messages The chain transmitted can be the second part of a command separated by a comma or a semi colon KI100 SP1000 TM100 Acquisition of 100 points with a period of 1000 msec and an integration constant of 100 msec KIO SP5 10TK100 Acquisition of 100 points with a period of 5 msec without integration The acquisition is synchronized on the TRIGG input so that the measurement number 10 is synchronous with the setting to high status of this input KI1000 TQ100 Acquisition of 100 points with an integration constant of 1000 msec Each acquisition is triggered by setting the TRIGG input from 0 to 1 Examples of Programs Quick Basic by Microsoft Example with RS 232 C Interface The RS 232 C interface is used to connect the LDS1000 Controller to a com puter or a console The controller manages the RS 232 C interface like a three wire interface only the send and receive lines are used as well as the mass This controller manages all the interface parameters that must be set at the same values for the LDS and the computer refer to the configuration chap ter The following parameters are selected by default e BAUD RATE 9
74. rcial computers on ports COMI or COM2 The LDS1000 Controller is delivered with a RS 232 C lead comprising a classical Sub D9 connector as well as a Sub D9 Sub D25 adapter Depending on the standard chosen by the computer manufacturer it is always possible to carry out the RS 232 C communication with the LDS1000 Controller A program written on a given computer will be able to use the RS 232 C outputs available on another computer without any problems on the condition that the right number of the port on which the LDS1000 Controller is connected is given D Newport 1 2 Experience Solutions LDS1000 Controller for Laser Diode Sensors The parameters of the RS 232 C interface are the following e BAUD RATE Interface speed e MSG TERM End of message character e WORD LENGTH Length of the transmitted chain e STOP BITS Number of stop bits PARITY Parity used by the interface IEEE 488 Interface The IEEE 488 protocol is only possible when the computer is equipped with a special card that allows IEEE 488 communication There are several different models available on the market Please note that they are not compatible between themselves As a result a software program written for a IEEE 488 card of a model will not work with another IEEF 488 card The parameters of the IEEE 488 interface are the following e MSG TERM End of message character e PRIM ADRESS Instrument s primary address e SECOND ADRESS Instrument s sec
75. rent to the one supplied by NEWPORT Use or storage in environmental conditions other than those indi cated Poor maintenance of the equipment in particular scratches on the front optic excessive humidity shocks to the body from any modification to the product or one of its parts This warranty is in lieu of all other warranties expressed or implied including any implied warranty of merchantability or fitness for a particular use Newport Corporation shall not be liable for any indirect special or consequential damages No part of this manual may be reproduced or copied without the prior writ ten approval of Newport Corporation This manual has been provided for information only and product specifica tions are subject to change without notice Any changes will be reflected in future printings D Newport ii Experience Solutions LDS1000 Controller for Laser Diode Sensors Table of Contents Warranty e x E ii EC Declaration of Conformity ss vii Definitions and Symbols 5 45 nita mend e e EH e viii Warnings and Cautions sise viii Waring CNRC T ix 1 0 Introduction eee iabieogo tero roe i Gunn 1 2 0 Description scenerne 1 21 Equiptmielit sre ne d OO cas aaa ada REO I E RETIRER 2 2 2 Modes of Operation oar RO e a OD E 2 Manual Mode pee t mtt Pei Rene Rn e oes TS FAS ETE Yu RH el 2 Remote Mode 4 5 nena ei nier ne a ro ar r
76. s is given by XN XN remains equal to zero while the trigger signal is absent then Xn directly takes the value xx If the trigger signal arrives before xx measurements are stored in the memory the first values will be set at MIN MIN being the lowest limit of the measurement range of the sensor used Response None Errors C Parameter out of limit D Execution not allowed O Variable is out off range Example 20T 100 Pre launch the acquisition of a series of 100 measurements Measurements 1 to 19 precede the trigger signal measurement 20 is synchronous with this signal and measurements 21 to 100 come after it NOTE The trigger signal is an external logical signal that must be connected to the TRIG input located on the rear panel of the LDS1000 Controller Related commands KI Define the integration constant TB Read error TE Read error code SP Define sample period XN Read number of measurements in memory QD Newport EDH0170En1020 07 11 50 Experience Solutions LDS1000 Controller for Laser Diode Sensors M Immediate Acquisition Use MNL B RMT ACT Syntax TMnn Parameter nn 1 at NBMAX Number of measurements to be performed NBMAX Max number of measurements related to the memo ry installed Error possible nn outside authorized interval Error C Description Immediately carries out an acquisition of nn successive mea surements The acquisition period is give
77. s usual mode of operation v 2 6 KRAD ME Z 8 5 KRAD C Access to the different Menus parameter scrolling and the choice of values is obtained by pressing one of the 5 buttons on the front panel of the con troller F1 to F5 gt SP oleae Y 2 6 FRAD MENU 5 Zet 8 5 FRAC CONF PSS SESE bs SS n a og Es 2 6 FRAD MENU F5 2 8 5 VRAD CONF Fl F2 F3 Position of the buttons on the LDS1000 Controller 15 EDH0170En1020 07 11 LDS1000 Controller for Laser Diode Sensors The mnemonics corresponding to the function of each button are indicated by the display shown by the button For example in the main menu MATIN the F5 key enables the function MENL to be selected and the F4 key selects the function JNF The other keys F1 F2 and F3 have no effect WARNING As a result the keys do not always correspond to the same functions 7 2 Manual Mode Functions The main menu gives access to two sub menus eM Ce Mode permet l acc s aux fonctions suivantes MEMO Display freeze ZERO Display relative to a current position GRAF Graphic display TNT Modification of the integration constant Ti Display the light received TEGT Test Mode maintenance e MAIN gt CONF F4 key This Mode gives access to the following functions HEAD Reading Modification of current sensor parameters Memorization Selection of 10 different sensor configurations OMM Choice of c
78. ssages accros the GPIB SR1 Service Request The LDS1000 asserts SRQ Serial Request line to notify the CIC controller In Charge when it requires service RLO Remote Local The LDS1000 does not support the GTL Go To Local and LLO Local Lock Out functions PPO Parralel Poll The LDS1000 has no Parallel Poll capability It does not respond to the following interface messages PPC PPD PPE and PPU The LDS1000 does not send out a message when the ATN Attention and EOI End or Identify line are asserted DC1 Device Clear The LDS1000 responds to the DCL Device Clear and when made Listener the SDC Selected Device Clear interface message DTO Device Trigger The LDS1000 does not support GET Group Execute Trigger interface message E2 Electrical The LDS1000 uses tristate buffers to provide optimal high speed data transfer SRQ Using The NI488 2 User Manual for Windows from National Instruments in the GPIB Programming Techniques chapter describes the use of Serial Polling as follow page 7 5 Serial Polling You can use serial polling to obtain specific information from GPIB devices when they request service When the GPIB SRQ line is asserted it signals the Controller that a service request is pending The controller must then determine which device asserted the SRQ line and respond accordingly The most common method for SRQ detection and servicing is serial poll This section describes how you can
79. switched off CAUTION Do not use any cable other than the one supplied by NEWPORT The cable provided connects the sensor to the electronic controller The male part should be connected to the optical head the female part to the controller Please ensure that all connections are correctly screwed in The cable is available in two standard lengths Cable for LDS1000 length 5 meters LDS1000 OPTO1NN Cable for LDS1000 length 10 meters LDS1000 OPTO2NN For longer lengths please consult us A lead ensures the connection to the mains supply on a switch and fuse base The controller is equipped with a self selecting input voltage power supply from 90 V to 250 V Set the switch to 0 OFF position D Newport 1 0 Experience Solutions LDS1000 Controller for Laser Diode Sensors 5 3 Power Up Power Up Messages Link up the controller to the mains Set the switch to I IN Once turned on the controller goes into its initialization phase and dis plays a welcome message Then the display of values measured according to programming parame ters is displayed v 2 5 KRAD ME Z 5 VRAD CE This presumes that the autocollimator is stationary in front of a mirror which sends the correct beam into the measuring range see paragraph Alignment In other cases the controller displays the value of the limits of the measur ing range the most frequent being 2000 prad instea
80. ter via an RS 232 C or IEEE 488 interface Interface Mode is activated by sending a computer message It can only be activated when e The physical connection between the controller and the computer is correct e The controller interface parameters and those of the computer are com patible e The correct computer output is commanded e The controller is in the main menu when the connection is established Interface Mode allows e Flying spot reading of the measured values e Execution of synchronous acquisition sequences of a clock inside the controller or a logical external TRIG signal e Reading the sensor status and the I O available The LDS1000 Controller is delivered with an RS 232 C cable It will work for example with a PC computer with the following minimum configuration e APC computer e An RS 232 C or IEEE 488 interface Hewlett Packard or National Instrument card Checking the Interface The controller must be connected to a calculator RS 232 C or IEEE 488 or a console RS 232 C via an adapted cable Only connect the instruments when everything is switched off WARNING Before connecting check that all equipment is switched off RS 232 C Interface The LDS1000 Controller is delivered with an RS 232 C interface cable This cable has a male Sub D25 connector for the controller connection cf dia gram When setting it up make sure you tighten the support screws The other connector is a Sub D9 pin pl
81. to 80 e Storage temperature 10 C to 50 C Refer to the paragraph entitled Specification Validity in each user s manu al for the performances of the sensors according to the conditions of use RS 232 C and IEEE 488 Interfaces RS 232 C interface Baud rate 300 to 19200 IEEE 488 interface Mode SRQ management Analog Outputs Analog outputs are only available if the option has been chosen e Refresh frequency 2000 Hz e Digital low pass filter 1 to 2000 Hz e Output range 10V Scale factor 5 mV incr to 1000 mV incr e Resolution 0 5 increment e Electronic noise 1 mV rms e Distortion 0 5 electronic e Maximum Offset 50 mV typical e Output impedance 10 Q e Discrepancy equivalent to a pure delay of 1 1 msec without integration e Attenuation equivalent to the one of an order 1 low pass filter with 600 Hz cutoff frequency WARNING SPECTRAL WITHDRAWAL The analog outputs use an intermediary calculation stage that is based on a sample at 2000 Hz This will limit the use of the LDS sensor for studying signals that do not have a significant spectral component over 1000 Hz this sort of component would find themselves withdrawn and would appear for lower frequencies 4 2 Validity of Specifications Refer also to the paragraph entitled Specification Validity in each user s manual for the performances of the sensors according to the conditions of use D Newport Experience Solutions 7 EDH0170En1020 07
82. ug compatible with the series output of the computer A Sub D9 Sub D25 pin adapter enables it to be linked to all existing standards It is useful to note the series output of the computer it is usually marked by one of the following SERIAL COMI COM2 etc refer to the computer documentation The communication must be obtained with a TERMINAL type program Read the software documentation to configure the parameters of the RS 232 C output It is recommended as far as possible to select the following parameters that are the LDS1000 Controller s default parameters D Newport Experience Solutions LDS1000 Controller for Laser Diode Sensors e BAUD RATE 9600 e MSG TERM CR e WORD LENGTH 8 e STOP BITS Dd e PARITY NONE Start up the LDS1000 Controller and check in Manual mode the interface parameters by selecting the RS 232 C protocol AIN gt CONF F4 gt COMM F2 If the display is e R Cocek MALN eDit STE SEE SVE The RS 232 C interface is active otherwise press the 7 7 FI key of the controller to return to the RS 232 C protocol Use ED TT F2 mode to visualize and modify the interface parameters if necessary Return to the main display menu of the controller with the MA TN F5 key The system is ready to communicate in RS 232 C RECOMMANDATION Refer to the Appendix A Example of Program Using RS 232 C Link IEEE 488 Interface IEEE 488 interface is only possib
83. ult terminator of the IEEE 488 card The controller manages the IEEE 488 interface in SRQ mode the SPOL func tion of the IEEE card enables the controller status to be read This status is coded in one word of 8 bits bit 6 of which value 64 is worth 1 if a message is near reading must always by done before a new request RECOMMANDATION Refer to the Appendix B3 SRQ Using E D Newport Experience Solutions LDS1000 Controller for Laser Diode Sensors Maintenance 11 1 gt Newport Experience Solutions Optical Head CAUTION LASER SAFETY LDS Series Sensors are CLASS II LASER INSTRUMENTS according to the EN 60825 1 standard DO NOT STARE INTO BEAM Max Power lt 1 mW 670 nm Device Manufacturer LDS1000 CN MICRO CONTROLE 1 Rue Jules Guesde B t B z Zl Bois de l pine S N BP189 EVRY 914006 FR Manufactured 06 2011 Complies with CFR 21 Subchapter J Any other intervention requiring dismantling of all or part of the equipment must be carried out by our maintenance service Maintenance of the LDS1000 Electronic Controller WARNING Certain safety precautions must be respected before any intervention on the LDS1000 Controller In order to comply with the safety standards for the use of this equip ment the user must take the necessary precautions and respect the warnings that appear in the chapter entitled Warnings The LDS1000 ele
84. y is 0 8 prad when using a standard LDS Vector autocollimator By calculating the average of a large number of measurements it is possi ble to obtain a much higher resolution to the detriment of the system s pass band The LDS1000 Controller carries out a sliding average of N successive val ues in relation to the INTG parameter that can be selected with this menu N 2 x INTG gt F2 Lowest INTG value F3 Highest INTG value MAIN F5 Return to main menu Possible values INTG 0 5 1 2 5 10 20 50 100 200 500 1000 Default value INTG 100 Unit msec Graphic Display MAIN gt MENU F5 gt NEXT F4 gt GRAF F3 In order to facilitate alignments a display in the form of a Bar Graph is rec ommended For each axis the number 8 digit is considered as the optical center of the autocollimator The angles measured successively light up the adjacent digits 7 on each side logarithmically for accurate alignment mode Positive space values light up the digits to the right The alignment around the center of the sensor is achieved by switching off as many digits as possible In alignment mode a ZERG function F4 enables measurements to be per formed in relation to the current position which becomes a reference point MAIN F5 Return to main menu Display Light Received MAIN gt MENU F5 gt NEXT F4 gt ILLU FD To check if the instrument is working properly mak

LDS1000 User Manual - Newport Corporation

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