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EDH0170FE1010 – 09/98

LDS1000 Controller for Laser Diode Sensors

Содержание LDS1000

Страница 1: ...the ones that the ins trument 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 Firs...

Страница 2: ...n 2 2 1 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 t...

Страница 3: ...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...

Страница 4: ...500 H 2 3 3 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...

Страница 5: ...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 d...

Страница 6: ...10 kHz Beam diameter 31 mm Beam direction 0 5 mrad in relation with autocollimator body Equivalent focal length 280 mm Beam divergence 0 1 mrad Ocular field 15 mrad Measurement range 2000 rad Weight...

Страница 7: ...option has been chosen Refresh frequency 2000 Hz Digital low pass filter 1 to 2000 Hz Output range 10 V Scale factor 5 mV incr to 1000 mV incr Resolution 0 5 increment Electronic noise 1 mV rms Distor...

Страница 8: ...unit Unit displayed for axis Z Zofs1 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 mo...

Страница 9: ...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 L...

Страница 10: ...reflector and their correspon ding supports are solid 5 2 Electric Connections CAUTION Before connecting check that all equipment is switched off CAUTION Do not use any cable other than the one suppl...

Страница 11: ...ead of the value measu red on the given axis See paragraph Alignment Other possible messages LASER ERROR This message indicates a connection error in the optical head or a laser diode emission fault T...

Страница 12: ...logy depart ment 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 The...

Страница 13: ...uments to be connec ted 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...

Страница 14: ...t in real time at a frequency of 2000 Hz It imposes the following limits Resolution limitation 0 5 increment Further measurement distortion 0 5 Extra noise 1 mV rms measured with a load of 1 M Maximum...

Страница 15: ...mator 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 7 1 Access to Manua...

Страница 16: ...y This Mode gives access to the following functions Reading Modification of current sensor parameters Memorization Selection of 10 different sensor configurations Choice of communication parameters RS...

Страница 17: ...hat correspond to the same instant are available on the screen It is therefore possible to read them without haste this is a flying spot pic ture of a position F5 Return to main menu F4 Normal display...

Страница 18: ...0 1000 Default value INTG 100 Unit msec 7 3 4 Graphic Display F5 F4 F3 In order to facilitate alignments a display in the form of a Bar Graph is recommended For each axis the number 8 digit is conside...

Страница 19: ...or used Parameter input of the controller Interface parameter input 7 4 1 Parameter Input of the Current Sensor or the Memorized Sensors F4 F1 This mode displays the number of the current sensor curre...

Страница 20: ...s 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 elec...

Страница 21: ...incr 10 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...

Страница 22: ...te the initial parameters in rad You only need to program a new sensor number 7 4 1 4 Programming a New Sensor When an LDS Vector autocollimator is delivered with its electronic control ler the sensor...

Страница 23: ...ber of the current sensor especially if the series number does not match Menu Or modify the current sensor parameters Menu 7 4 2 Communication Parameter Input F4 F2 Access to this menu enables the par...

Страница 24: ...meters F4 F2 The IEEE 488 interface is active if the display is as follows Otherwise the F1 key provides access to this menu In mode the values of the parameters stored for the IEEE 488 interfa ce can...

Страница 25: ...on 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 ou...

Страница 26: ...00 Controllers have a standard memory size of 2048 measurement points couples Y Z Approximately 1 second of measurement can be sto red at the maximum acquisition frequency of 2 kHz The read out time o...

Страница 27: ...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 acquisit...

Страница 28: ...LDS sensor for stu dying 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 funct...

Страница 29: ...es With a gain of 1 OUTY 2 62 x 25 65 5 mV OUTZ 8 54 x 25 213 5 mV With a gain of 5 OUTY 2 62 x 125 mV 327 5 mV OUTZ 8 54 x 125 mV 1067 5 mV OUTY or OUTZ in mV for a Displayed Unit rad sec Incr 0 1 0...

Страница 30: ...ire 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 The passage of the TRIG input from Low status to High...

Страница 31: ...98 LDS1000 Controller for Laser Diode Sensors 9 2 TRIG Input Compatible TTL input Max voltage 5 V 9 3 PWOK Output Open collector output Max voltage 30 V Max current 20 mA PWOK Output 100 TRIG Input 5...

Страница 32: ...e computer An RS 232 C or IEEE 488 interface Hewlett Packard or National Instrument card 10 1 Checking the Interface The controller must be connected to a calculator RS 232 C or IEEE 488 or a console...

Страница 33: ...n 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...

Страница 34: ...er 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 fo...

Страница 35: ...ading Dialog with the controller parameter modification Point to point acquisition sequence analysis and storage Rapid acquisition sequence max freq 2 kHz analysis and storage 10 3 Programming Before...

Страница 36: ...when writing these modules that are essential for the proper operating of the final program In all cases The first order to be sent to the controller is the MR command that acti vates the controller i...

Страница 37: ...1TP 1596 3 which indicates that the value measured on axis 1 is 1596 3 Certain commands do not generate return from the LDS1000 Controller For example the SP50 command that sets the sampling period at...

Страница 38: ...s TN Reading sensor number and series number 10 4 1 3 Classical Acquisitions Command Description KI Define the integration constant TP Read current measurement XI Read integration constant 10 4 1 4 Dy...

Страница 39: ...put 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 T...

Страница 40: ...value of the integration constant INTG to nn msec Response None Error D Execution not allowed Example KI100 Define integration constant at 100 msec NOTE Do not confuse KI integration constant and SP s...

Страница 41: ...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 integrati...

Страница 42: ...R Parameter None Description Set Interface Mode from Manual mode manual mode in main menu Response None Error D Execution not allowed Example MR Set Interface Mode REMARQUE The controller then display...

Страница 43: ...ary Bit 0 0 Correct power received 1 Incorrect power received Bit 1 0 Correct position 1 Incorrect position Bit 2 0 Acquisition not started up 1 Acquisition started up TRIGG wait Bit 3 0 No acquisitio...

Страница 44: ...nication time out Example RB Request status of TRIGG input RB1 TRIGG input is in high status Related commands RO Read PWOK output status TB Read error TE Read error code 10 5 06 RD Set Frozen Display...

Страница 45: ...Use h MNL j RMT j ACT Syntax RO Parameter None Description 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 Resp...

Страница 46: ...ad error code 10 5 10 SP Define Sample Period Use h MNL j RMT h ACT Syntax SPnn Parameter nn Sample period in milliseconds nn 0 5 to 32000 msec by steps of 0 5 msec Possible errors nn absent nn 0 5 ms...

Страница 47: ...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 Th...

Страница 48: ...D Execution not allowed S Communication time out Example 1TA Read the parameters of axis 1 Y of the current sensor 1TA RT 04512 1 rad 00102 00241 Typical parameters for an STR500 H autocollimator Rel...

Страница 49: ...gister 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 A Unknown message code B Incore...

Страница 50: ...used The number of the acquisition in progress 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 m...

Страница 51: ...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 inte...

Страница 52: ...x 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 Descriptio...

Страница 53: ...of which should be translated into binary Bit 0 0 Standard memory 1 Extended memory Bit 1 0 Frozen display mode 1 Refreshed display mode Bit 2 0 Bit 3 0 Bit 4 0 Bit 5 0 Bit 6 1 Bit 7 0 Table for readi...

Страница 54: ...hin the authorized interval the controller returns the value of the measurement xx If xx 0 or absent the controller returns all the measu rements in the memory one measurement Y Z per line star ting w...

Страница 55: ...rogram version VE LDS1000 Controller Version 3 10 Program version 3 10 Related commands TB Read error TE Read error code 10 5 23 XI Read Integration Constant Use h MNL j RMT j ACT Syntax XI Parameter...

Страница 56: ...y contains 100 measurements 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...

Страница 57: ...ion constant of 1000 msec Each acquisition is triggered by setting the TRIGG input from 0 to 1 10 8 Examples of Programs Quick Basic by Microsoft 10 8 1 Example with RS 232 C Interface The RS 232 C in...

Страница 58: ...d 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 con...

Страница 59: ...gs The LDS1000 electronic controller is designed to receive signals from an LDS series sensor The following precaution are necessary if it is to work correctly Make sure that the mains current matches...

Страница 60: ...with the DLS1000 Controller sheathed cable that is 3 meters in length or 11 3 2 IEEE 488 Cable WARNING Use a standard commercial cable LDS1000 Computer Sub D25 male Sub D25 femal 2 TxD 2 TxD 3 RxD 3 R...

Страница 61: ...cables that are 3 meters in length 11 3 5 Measurement Synchronization Input Cable TRIG Connector WARNING Use sheathed commercial cable that is 3 meters in length 11 3 6 Beam Signal Output Cable PWOK C...

Страница 62: ...sition Reading env TP LOCATE 5 10 PRINT LAERS1 exemple software LOCATE 18 10 PRINT 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 re...

Страница 63: ...mmonly called IEEE 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 E...

Страница 64: ...are asserted DC1 Device Clear The LDS1000 responds to the DCL Device Clear and when made Listener the SDC Selected Device Clear interface message DT0 Device Trigger The LDS1000 does not support GET Gr...

Страница 65: ...nal 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 typ...

Страница 66: ...EDH0170FE1010 09 98 66 LDS1000 Controller for Laser Diode Sensors...

Страница 67: ...Adress Country P O number Item s being returned Model Description Reason for return of goods please list any specific problems Return authorization Please obtain prior to return of item Date Phone num...

Страница 68: ...EDH0170FE1010 09 98 68 LDS1000 Controller for Laser Diode Sensors...

Страница 69: ...d with the mark meets all the necessary requirements of The European Directive 89 336 EEC concerning Electro Magnetic Compatibility Generic standards Emission EN50081 1 Residential Commercial and Ligh...

Страница 70: ...Controller for Laser Diode Sensors LDS1000 USER S MANUAL...

Страница 71: ...t least 90 days Limitation of the warranty This warranty does not apply to defects resulting from misuse or alteration of any product or part CAUTION The warranty does not apply to defects resulting f...

Страница 72: ...4 2 4 Dimensions 4 3 0 Principle of Operation 5 3 1 Laser Diode Sensors 5 3 2 Electronic Controller 5 4 0 Specification 6 4 1 General Characteristics 6 LDS Vector Optical Head example of Sensor 6 LDS...

Страница 73: ...Vector 22 Programming a New Sensor 22 Visualization of Current Sensor Parameters 23 Communication Parameter Input 23 Modification of RS 232 C Parameters 24 Modification of IEEE 488 Parameters 24 Defau...

Страница 74: ...48 TB Error Description 48 TE Read Error Code 49 TK Acquisition on External Trigger 50 TM Immediate Acquisition 51 TN Read Number of Selected Sensor 51 TP Read Current Position 52 TQ Acquisition on E...

Страница 75: ...ary requirements of The European Directive 89 336 EEC concerning Electro Magnetic Compatibility Generic standards Emission EN50081 1 Residential Commercial and Light Industry stan dards Immunity EN500...

Страница 76: ...t 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...

Страница 77: ...ent Make sure that the instrument is not exposed to excessive humidity more than 85 Do not replace any part and do not modify the equipment in any way Should the equipment require servicing or repairs...

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