LDS0400-T Laser Diffraction Sensor for Transparent - CERSA-MCI
Contents
1. Part VIII Maintenance security and troubleshooting 25 value ALGO ZEROSIDE Signal is not correct for analyse LGO ASYNC Signal is not correct for analyse 599 JALGO Signalis not correct for analyse Manual version 11 0 02. SPOOL RESET Reset fiber length Input LENGTH Fiber length counting pulses COUNTING Output POSITION OUT Fiber position is out of 1 5mm circle radius Measures are not certified BNC outputs are forced to a fixed voltage EU aa 24VIN User s DC external voltage for inputs V HET Ew EET TN Low tolerance Pre pr pere pergere eet Ge af ad WEI a 2 MUN a eee EM d CLAMP Diode protection input when one EE is monitored EN Voltage ground reference for 24VIN and outputs ce da Voltage ground reference for 24VIN and outputs ce Output states e When the output is activated example Fiber position is out the collector is open e When the output is not activated example Fiber position is correct the collector is closed Input states e To activate the input example to reset the length you must force the potential of the input from 24VIN to GND e To deactivate the input you must release the potential of the input internal pull up to 24VIN or force it to 24VIN Manual version 11 0 0 LDS0400 T user s manual 15 Part V Connexions and Interfaces 55 V MAX IN PINS 20mA OV to mA 24V Remark e Lamp Load and Relay are shown as user application examples 2 Length counting use If you connect the length counting signal and the reset signal the instrument will compute the speed and length with the same reference as your production
3. Maximum diameter warning tolerance enter zero to diameter disable Minimum diameter warning tolerance enter zero to diameter disable 2 Measure parameters Here below is the full list of measures parameters that can be adjusted with CIM software Parameters manager Measures level diam local display and transferred to CIM correct the calibration of the instrument In case of position out the voltage value to apply on all BNC Pos out tempo s If the object to measure leaves the measurement area supervisor during this time it is considered as position out All Manual version 11 0 0 LDS0400 T user s manual Part VI Instrument settings 21 EE measures are forced to init value pcm Remark about diffraction diameter calibration Thanks to the optical system and measurement principle you should not modify the offset value default value 0 In case of you really need to correct the measure you have to follow this procedure 1 Wait for the temperature stabilization for at least 1 hour 2 Be sure of the cleanness of the optical system 3 You must have a standard fiber or metallic wire The standard has to be very circular non circularity less than 0 2um and must be measured by an external accurate offline measurement system 4 Clean perfectly this standard with IPA IsoPropylic Alcohol 5 Place this standard without touching the part which will be measured in the center of t
4. sampling period of each buffer can be modified depending on the time scale you want to analyse Those tools are very useful for process analysis to qualify the stability the regulation performance and display some particular effects The F F T processing shows specific oscillations We recommend strongly to the process engineer to use those tools for understanding and improvement of the manufacturing process 2 Diameter 2 1 Optical principle Light source Fiber CCD sensor Diffraction effect Diffraction fringes The light ray deviation due to a material tangential effect creates a diffraction phenomenon When a fiber is placed in a collimated light source two symmetrical effects appear on each side of any fiber diameter like two new sources of coherent light producing interferometric fringes perpendicular to the fiber The period of the fringes is a direct function of the fiber diameter An optical system concentrates the fringe signal on a linear CCD sensor Due both to the phenomenon and to the optical system the sensor signal is fiber position independent The fringe signal comes from the angular deviation of the rays All the parallel rays from the laser source are focused on the center of the CCD where the optical mask is placed All the rays deviated by the fiber reflection and diffraction in the same angular direction are focused at the same position on the CCD sensor Thus when the fiber moves or vibrates the fringe signal
5. the vibration frequency value of the detected F F T peak The following parameters can be adjusted e Sampling period ms Represent the duration between 2 storages inside the buffer It is used to adapt the time scale Minimum value 1 000ms Min window Hz The minimum frequency used to search for a F F T peak Max window Hz The maximum frequency used to search for a F F T peak Min peak energy The minimum energy to be considered as a peak Min peak level The minimum normalized peak level to be considered as a peak Max peak width Hz If a peak is detected its width referring to the min peak level should not exceed the max peak width to be considered as a real peak Manual version 11 0 0 LDS0400 T user s manual Part V Connexions and Interfaces 13 Part V Connexions and Interfaces Here below is the rear face of the instruments 1 Digital VO DIGITAL 1 0 RS232C SERIAL NUMBER Per 6 3 4 POWER DIGITAL pie d IN OUT connector is a SUB D 15 pins It is used for alarms and external controls e 8 Outputs open collectors 60 VCC max 24 or 48 standard DC voltages with common ground e 2 floating opto isolated Inputs with common anode designed for 24V DC for open collectors Other voltages on demand Internal resistors have to be adapted Manual version 11 0 0 14 Part V Connexions and Interfaces DB15 VO type VO name Description Pin Number
6. Measure amp Control _DS0400 T Instruments Laser Diffraction Sensor for Transparent product User s manual Manual version 11 0 0 2012 CERSA MCI CERSA MCI 53 parc Expobat 13480 CABRIES FRANCE tel 33 0 4 42 02 60 44 fax 33 0 4 42 02 79 79 web http www cersa mci com email sale cersa mci com support cersa mci com Table of Contents Part Part Il Part Ill Part IV 1 Part V N OO FP WD a Part VI 1 2 Part VII 1 2 Introduction 4 Specifications 5 General specifications ss AR REGEER RE AR KA AR KRAG ER EER RR AAR RA nn ER KERR KRAAK RA Ge KERE RAK Ke AR KARRE Ee nis 5 Mechanical design i e EE 1 VERSE Ke ee Re te etienne cele DE nee 6 CIM software 8 Measures and principle 9 Generalilies EE 5 Dni uL ial ES GE EV sae eee pa ee aa Se ee 9 1 1 Available measures EE n Re nn Bee e oen Dean ee We ed Eg Ge Re ec ee ee ED ee nan 9 1 2 RE ME EE AE OE TR EE EE EE 9 1 3 Real time scopes 10 rnm EE N N EE none 10 2 1 Optical Principle ese Ee RE eee EE ED ee RE eek Be en Ge ei EE net EE 10 2 2 Diffraction SCOpE EE EE OE RE EE EO EE EE EE 11 2 3 Real time diameter scope eeuse ees ee EE RE EE ER AE AE EA EE RA ER EA EE AE RE AR EA EE EE KEER KEER KEER ases asses AR EE akani ee Ke ee 11 Position and vibration is EE REG EE Re AE RR EE REG EE Re AA KG ER REG EE AE REG EE Re AE Ke Ak KG EE Ee aaa 11 SU ie od EE EE OE EE EE EE EE EE EE cassavecde
7. aces At start up the screen displays the instrument serial number and last embedded software version By pushing on SCREEN button you can display the following information E 1 16 This screen displays Diameter X position and Y position This screen displays the produced Length and the Speed By pushing on CHANGE button you will reset the length to zero TEMPERATURE v E oO C his screen displays the internal Temperature aV Remark You can reset the instrument load factory data you must push SCREEN and CHANGE buttons together just after powering up the instrument Manual version 11 0 0 LDS0400 T user s manual Part V Connexions and Interfaces 19 6 External power supply The instrument comes with its CERSA MCI s power supply This power supply provides 12V volts rectified and filtered DC voltage with a power of 45W as well as ground protection continuity An short circuit protection is included Input voltage from 100V to 240V AC 50 to 60 Hz 7 Air supply A standard connector for 6mm PVC air pipe is included on the rear panel The air exit inside the lens mechanical protection A clean and dry air flow of 5 to 20 litters per minute is required to clean the optics and cool down the electronic The air supply is absolutely needed for cooling down The instrument can be damaged if the air is not connected to the instrument internal overheat It has also th
8. does not change Manual version 11 0 0 LDS0400 T user s manual Part IV Measures and principle 11 2 2 Diffraction scope This scope shows 1 signal e CCD diffraction axis 1 Light energy vs pixel It shows the signal acquired by the Q CCE eet syd EDS es LUC Reuss Pareten en This scope is used for maintenance purpose to check the signal quality Results displayed in the scope e Diameter the diameter measure corresponding to the displayed signal e Status the alarm code corresponding to the displayed signal e Amplitude the fringes amplitude This value should be around 30 40 for 245um fiber otherwise the instrument is not good conditions for measurement 2 3 Real time diameter scope This scope shows 1 signal e Real time diameter diffraction Diameter vs time It shows real time diameter fluctuations Select syd Fas rea carece rielesrery axa 1 USG ET Y Sya Im Rests Posters 125 15 M vy nm vy vy n vy vimm m y vm n AN PTT x xii i E VV Wy Ver wy V1 This scope is interesting for process study and analysis lt can show high speed phenomenon such as spinning or diameter oscillations The following parameter can be adjusted e Sampling period ms Represents the duration between 2 storages inside the buffer It is used to adapt the time scale Minimum value 2 500ms 3 Position and vibration 3 1 Principle Fiber position is measured by 2 position s
9. e interest to avoid dust to deposit on the lenses Manual version 11 0 0 20 Part VI Instrument settings Part VI Instrument settings A full set of parameters can be adjusted using CIM software Remark All parameters are stored and saved in a embedded EEPROM 1 Tolerances The instrument monitors in real time if the measures are in or out of the product tolerances In case of tolerance defect the instrument will act as follow e Digital output state will change Refer to the Digital VO chapter e Data are transferred to CIM which will show events with full details about dating positioning and extremum values Here below is the logic used for tolerance control Measure gt Nominal tolerance Warning high tolerance EVENT WARNING HIGH Not yet available Measure Nominal tolerance Warning low tolerance EVENT WARNING LOW Not yet available Measure gt Nominal tolerance Out high tolerance EVENT OUT HIGH Measure Nominal tolerance Out low tolerance EVENT OUT LOW Here below is the full list of tolerances parameters that can be adjusted with CIM software Parameters manager Tolerances pre em Avg time diameter Time during which the diameter will be averaged to compute out of tolerances enter zero to disable Nominal diameter Nominal diameter value Out high diameter Maximum diameter tolerance enter zero to disable Out low diameter Minimum diameter tolerance enter zero to disable
10. ensors X and Y Those 2 PSD Position sensitive detectors analyse the light diffused by the fiber and provide an accuracy of 0 1mm The measurement range is limited to 2 0mm on both sensors The vibration frequency measurement comes from the spectrum analysis of the Y position signal more sensitive than X It can be measured only if oscillations are stable and large enough Manual version 11 0 0 12 Part IV Measures and principle 3 2 Vibration scope This scope shows 2 signals e F F T of the Y position Energy vs frequency It shows the normalized Fast Fourier Transform of the Y position signal e Y postion signal Y axis position vs time It shows fiber position measured by the Y position sensor Select signs pm LES STR JZ Min peak level x AA AN dl Vi M MA t A Nw A m AE EET 1 te t I 3 Jl Il 1 1 T m f TT 3 JU MI JT WI MAN ij il WT v te 2600 20000 LR 206 00 one Al eboo acto 20000 asit e a EE This Scope is interesting for vibration analysis When the instrument is placed between the furnace and the first coating die it can display the natural fiber vibration which is an image of the drawing tension Results displayed in the scope e F F T DC energy represents the F F T level of the DC part Frequency OHz e F F T peak energy represents the F F T level of the main peak e Frequency Hz
11. es a complete set of comprehensive tools to improve and master the production process as well as all features to certify the whole production specifications in line 2 E Line 39 usn or Production Explorer Lite view mam ie poA Moda nom os a 14701 USG 0658 we NCIMOMS E er Rat dae Y X ap dae ae MO Pond Mice Lene uc vae o m COO A j cU rego mees i m wa M G Spinnin ing pu je e vadere We ee Moe Statistics Events Event detail ja 500 000 E Ios pM y Meum tenere Somme h Denn M ete Fe L Ho ar 1 Cu uci isl 403 661 y e nl Y 2 EE ae 2 EE Te 1m ms n nz un Ek ad 7 1 x D ae se xx mad a ste AS mm td e F a ud ud E id we ww hee N ee N he N ee Main features e Monitoring the process in real time e Data logging database e Production reports e Instruments configuration Acces level 2 access level are defined user and supervisor e The supervisor level has no restriction e The user level is limited to the basic operator use some advanced configuration are disable Manual version 11 0 0 LDS0400 T user s manual Part IV Measures and principle 9 Part IV Measures and principle 1 Generalities 1 1 Available measures Here below is the list of measures transferred from the instrument to CIM Description access level Value of the outer diameter Value of the production speed Value of the production speed Val
12. he LIS Be sure that the standard position is around 0 0mm 0 2mm 6 Enter the value of your standard it will calibrate instantaneously your instrument Manual version 11 0 0 22 Part VII Installation on the line Part VII Installation on the line 1 Mounting You do not need any fine adjustable support A single horizontal metal plate 3 mm thick with 4x 4 20mm holes would be sufficient You must reserve the possibility of a manual adjustment to adjust the position of the instrument on the fiber axis In case of the instrument is used for bare fiber pay attention to the following e To have the best regulation response the instrument has to be near the furnace 2m to 5m e Because the glass fiber is a important heating source the internal temperature must be checked 55 degrees maximum with CIM software during fiber drawing especially at the highest production speed Remark e At very high production speed the fiber itself becomes an important heating source e Air supply is necessary to maintain the internal temperature and ensure the behavior of electronic devices Refer to Air supply chapter 2 Alignment All measures are independent of the fibre position while the fibre stays within 1 5mm radius We recommend to keep the fiber within a 1 0mm circle radius top view measurement area 1 5mm circle radius Out of a 1 5mm circle radius the measurement is not possible LDS0400 T
13. oasadsncredoeses 11 3 2 Vibration SCOD sesse ese ee ee ee tt ce de DR Ee AA N ke AR raa de va ee oa eek s de GE Ka pa npo Ee di Ke eg 12 Connexions and Interfaces 13 pco 13 Length counting use ss ER EE nenne ER ER RE nn ER nnns Ge ER ER REG Ge ER KERE Ge ER KERKE Ge ER asse sanas 15 Serial link ICE 16 BNC Outputs idee ale nn utin uel EG ed De Ge Ge ahi 17 Front panel DLL MET 17 External power supply EE ccc EER dns tu erra GEE Irma Ee ge ee GEE 19 Alf SUPPI EE ED N EN EE ED RE E LR m Am E 19 Instrument settings 20 Toletances EE LR 20 Measure paramleters RE ck se Ee KEES RE Ge ence c Re ee Ge Lane cou RA Ee Ke Ee Re 20 Installation on the line 22 Mouhtihg EE OE OE N EE DEE 22 Aligniment 2 ee nine IE Re eg ee Roe EN I ge ge EE oe DEE Ee nes 22 LDS0400 T user s manual Manual version 11 0 0 Contents 3 Part VIII Maintenance security and troubleshooting 23 1 Satetyrules ME ELE 23 2 Optical system cleaning Lec EE EE Eg BE ee Ge Ee re Ee cest GEK Ee eene re Boeke eek Vee diac ee ai 23 3 gegen Ie 24 Manual version 11 0 0 4 Part I Introduction Part Introduction The LDS0400 T Laser Diffraction Sensor for Transparent products is specially built for transparent products such as optical fiber glass or coated fiber It measures the diameter in production towers Its measurement principle is based on the laser diffracti
14. ode This code is also transferred to CIM which will display a short text For further details about these codes please refer to the following table m o Oo o a D x e E o Ei o lt D 5 9 ARNING HIGH ARNING LOW OUT HIGH OUT LOW ESET SPOOL VENT MAX ANA END SET CERSA Internal event ANA START SET ANA OUT RIFT PINNING INIT NT EMPTY T LOST IFF ERR PINNING ADAPT ASYM NUM ERR IAM NUM ERR S232 ERR OCKED IGH TEMP OURCE NST TEMP CD EPROM CBSP C32 CBSP FO CAN FO CD READ INT W VER INC CERSA Internal event OSITION OUT RONG POSITION Fiber position is not correct IGNAL LOW Signal is not correct for analyse IGNAL SATURATE Signal is not correct for analyse IGNAL DIRTY Signal is not correct for analyse IGNAL OUTRANGE Signal is not correct for analyse IGNAL Signal is not correct for analyse ALGO ASYMETRY Signal is not correct for analyse S 502 ALGO MINMAX 503 ALGO PERIOD N 1 2 3 4 5 7 10 SE 12 13 14 100 200 201 202 203 204 205 206 207 208 209 300 301 400 401 402 403 499 501 LOU E L2 ae es ae L3 4 5 6 8 9 a aa MEE i Gad 12 MEE et Lia 100 200 201 202 203 204 205 206 207 208 209 7300 301 7400 401 402 403 7499 501 502 503 LDS0400 T user s manual Manual version 11 0 0
15. on This method is fibre position and vibration independent The LDS0400 T instrument uses the latest technology to give the maximum performance Main Advantages e Accurate diameter measurement e Fiber vibrations measurement independent e Real time tolerances checking e Fiber position and vibration measurement e Spool length and speed computing e Compact and hardened industrial instrument e Local display of measures and parameters CERSA MCI develops and produces also complementary high performance measurement instruments for optical fiber production at high drawing speed like e LIS G for Glass fiber diameter spinning non circularity measurement and defect detection including airline e NCTM for Glass fiber drawing tension measurement e CM 5 for Coated fiber diameter Lump amp Neck detection internal defect detection and asymmetry measurement Manual version 11 0 0 LDS0400 T user s manual Part Il Specifications 5 Part Il Specifications 1 General specifications Important Instrument must absolutely be placed before any pulley or cabstan ABSOLUTE DIAMETER MEASUREMENT Range 50 400 pm Uncertainty 0 15 of the diameter limited to 0 15um without averaging 0 10 averaged on BNC output Remarks Includes slow ambient temperature fluctuation within 10 35 SC Includes fiber moves within 1 5mm radius circle Repeatability 0 07 of the diameter limited to 0 10u1m Measurement fre
16. pecifications e Voltage range 10V e Accuracy 50mV e Minimum resistive load 10kQ with short circuit protection e Maximum capacitive load 100pF Here below is the measurement type provided on each BNC BNC 1 BNC2 BNC 3 BNC4 Large scale diameter output Accurate diameter X position output Y position output output Remarks e Output voltage is limited from 10 V to 10 V e Output scales are adjustable with the following parameters under CIM software Parameters manager Analog interface Zero point When the measured value reaches the zero point value the corresponding analogical output is set to OV The unit of the zero point is the same as the corresponding measure Scale Is the number of volts per measure unit For example for position in millimeters 2 V mm if the measure varies of 1mm the value of analog output varies of 2 Volt Regulation If this option is activated then the zero point value is automatically forced to the nominal tolerance value of the corresponding measure Otherwise the zero point can have any value Average time Is the average time used to compute the analog output signal 5 Front panel A back lighted LCD displays the different parameters available locally It is controlled by two push buttons SCREEN will change type of information to display CHANGE is used to modify the settings Manual version 11 0 0 18 Part V Connexions and Interf
17. quency 400 Hz X amp Y POSITION MEASUREMENT Range 2mm Uncertainty 0 1mm Measurement frequency 1KHz VIBRATION FREQUENCY MEASUREMENT Using position measurement the instrument computes by F F T Fast Fourier Transform the vibration frequency which can be transferred to CIM software BNC OUTPUTS Quantity 4 Voltage range 10V DIGITAL OUTPUTS Open collectors For alarms fiber defect tolerances Quantity 8 DIGITAL INPUTS For length counting and length reset Quantity 2 RS232 COMMUNICATION Used to connect the instrument to CIM software Baudrate 115200 Maximum cable length 35 meters certified only with cables supplied by CERSA ENVIRONMENTAL CONDITIONS Air flow of 5 to 20 litters per minute required to clean the optics and cool down the electronic Ambient working temperature 10 35 c Maximal working internal temperature 55 c Storage temperature 0 60 c Manual version 11 0 0 6 Part Il Specifications 2 Mechanical design 09 135 125 C7677 e Weight 4 7 kg Manual version 11 0 0 LDS0400 T user s manual Part Il Specifications e Weight of the external supply 300g Manual version 11 0 0 Part Ill CIM software Part Ill CIM software C I M software CERSA Instruments Manager is a new PC environment that manage all CERSA MCI instruments It provid
18. system It permits the instrument to locate accurately all events in the spool It can help you to determine the portion of product to reject Manual version 11 0 0 16 Part V Connexions and Interfaces The length counting interfa ce has to be configured under CIM software Parameters manager Digital interface with the following parameters Pulses number The number of pulses for 1 meter length Slip factor in case of the real speed and the measured speed are not perfectly correlated you can adjust this factor This 1 0 multiplication factor is applied to the measured speed Default value Remark Those parameters are accessible in CIM software in Parameters manager Digital interface tab 3 Serial link RS232C ele w The dedicated pins of the serial link SUB D9 pins connector of the instrument are DB9 Pins nb IN OUT OO i J e e our pc EN UT The cable to use is a standard straight RS232 cable pin to pin It must be shielded CERSA provides on demand 15 25 or 35 meters certified cables Communication settings e baudrate 115200 bauds e data bits 8 e parity even e Stop bit 1 connect to PC DB9 Pins nb TXD Data out CTS Clear to send RTS RXD Data in RTS Ready to send CTS GND voltage ground ref 5 GND LDS0400 T user s manual Manual version 11 0 0 Part V Connexions and Interfaces 17 4 BNC Outputs S
19. ue of internal temperature of the instrument Should not exceed 55 Value of the vibration frequency of the measured object Value of the X position for the measured object Value of the Y position for the measured object Remark A non measured value is forced to zero except for X amp Y positions which are force to 5 00mm 1 2 Events It is a particular phenomenon that is detected by the instrument Events are detected in real time dated 3ms accuracy and located fiber length Each event is also characterized by its extremum value Here below is an example of high speed diameter fluctuation which exceeds the tolerances extremum value detected event start event end NV A sd RE E Here below is the list of events transferred from the instrument to CIM Description access level Diameter event is generated in case of out of tolerances Status General status of the instrument Manual version 11 0 0 10 Part IV Measures and principle 1 3 Real time scopes Because the measurement frequency of the instrument is very high it is impossible to transfer all measures in real time to the computer through RS232 The instrument stores the main measures continuously in internal buffers of 500 points each This function is called Real Time Scope Those buffers can be watched through CIM Only few buffers per seconds can be watched because of communication constraints The
20. user s manual Manual version 11 0 0 Part VIII Maintenance security and troubleshooting 23 Part VIII Maintenance security and troubleshooting 1 Safety rules There is no particular protection constraint for users in the case of a normal operation of the devices Laser source information The laser is not directly visible if you keep mounted the black cover Class 1 laser device according to the classifications given by the The Food Administration of the United States document FDA 81 8140 section 1040 10 2 Optical system cleaning The lenses cleaning should be performed regularly depending on the environment In most of the cases a simple dry air blowing action each month into the lenses protection is sufficient The user must remember that dust on the lenses degrades the device s accuracy To clean the lenses please follow this procedure Unplug the power supply Remove the top black cover you must first remove the screw Use dry air to eliminate the biggest particles Use cotton or dry tissue with IPA IsoPropylic Alcohol and clean carefully each dirty lens Check visually the surface of the lenses Replace the cover and tight the screw OO0OPOND Cover Manual version 11 0 0 24 Part VIII Maintenance security and troubleshooting 3 Error codes In case of measurement problem or error the instrument will show on the local display an error c
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