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Manual EN V1.7 - ASTECH Angewandte Sensortechnik GmbH

1. ccccccococooncnnccocononnnnnononnnns Figure 17 Example of switching output wiring Figure 18 Signal diagram of LDM301 analog output Figure 19 Behavior of analog current output Figure 20 Wiring analog output QA of LDM301 oooocccncnnconoccncnnncnnnononnnnnoncnnnns Figure 21 Example fort he external wiring oft he trigger input 44 Figure 22 Interconnection of several LDM301 devices coooococccnccccononnnncnncnncns 44 Figure 23 SSI connection diagram LDM301S M12 connector 45 Figure 24 Profibus connection diagram LDM301P M12 connector 48 Figure 25 Program LDMToo cccccccccecssssscecececsessseeeeeeesceeseaeeeeeeecsesssaeseeeesees 56 Figure 26 Online Help Command ID cocooconconoccnocononnnoconnccnonononoconananononanonos 61 Figure 27 Display of all parameters command PA ccc cccccssceceesseeeesseeees 64 Figure 28 Parameter reset command PR ssesccceessececsescececssececeesaeeccesseeees 67 Figure 29 PC Interface cable with power SUPDIY ccccccssssscecececeessseeeeeeeeees 81 Figure 30 Red dot sight ccconccoocnnccnccononononoss Figure 31 Adapater plate Figure 32 Dust protection tUbe ccccconocococnnoncnnnononnnnnoncnncnnononnnnncnnnnnnnncnnnncnnns 85 Figure 33 Protection Housing cccccccccncncnnnnnnnononononononononononononononononnnononononononons 85 ASTECH GmbH Page 5 List of tables LDM30
2. Because of the LDM301P is a linear encoder for measuring absolute distances the parameters code sequence scaling function control measuring units per revolution and measuring range in measuring units are ignored Diag Common The general diagnosis data correspond entirely to the profile standard and will be updated with every Profibus Diagnosis Request The Common Diag data require the class 2 functionality and the Commissioning diagnostics function In the event of errors Enn an alarm is issued as extended diagnosis which contains all diagnosis data To see the current temperature and operating time the diagnosis interval has to be set 0 A diagnostic Interval of 100 leads to a data update every 10 sec Please observe that the laser has to capture and transmit a value in the DF modes i e temperatures are only transferred if values are captured Diag Alarm Error messages of the laser are sent as unique Ext Diag The alarms are not saved E98 shows problems with the internal communication If errors occur they are reported as Ext Diag and then please try to activate the laser again Diagnostic Data Table 14 Profibus diagnostic data length Class 2 Commissioning Diagnostic information functionality diagnostic 0 6 byte Normal Diagnose 1 16 byte Class 1 Diagnose 1 1 63 byte Class 2 Diagnose ASTECH GmbH Page 51 Interface description LDM301 302 Manual Table 15 Profibus diagnostic d
3. zyklische Berechnung von Mbatarx Miaser Mofiset The value Moftset is not permanently stored in LDM301P it will get lost if you disconnect the device The offset can be written directly as a parameter Octet 32 35 If the Bit 31 of Mpreset iS set the new Mofrse is calculated so the following formula is valid Mpreser Miaser Mottset The offset value can be read in the diagnostic data as an octet 30 33 Page 54 ASTECH GmbH LDM301 302 Manual Installation 6 6 1 6 2 Installation Preparation Work before the installation Remove the packaging of the LDM301 Check the delivery scope for completeness Check the device and the accessories for damages Check the connections and the cables for damages Checklist for installation works The following table shows an example procedure for commissioning the LDM301 other procedures of commissioning may also be possible The application specific wiring is a prerequisite The user is responsible for the installation of the wiring and for the application specific parameterization of the Profibus LDM301P especially the Slave address Table 18 Installation of LDM301 Nr 1 2 10 Work step Unpack the LDM301 and check for damages Install the LDM301 at the target location and use the 3 M4 tapped holes at one of the 3 possible surfaces of support of the LDM301 see chapter 4 7 Plug the interface cable only when there is no voltage impres
4. 23 ol 2 3 4 7 Type bool bool bool bool bool bool bool bool unsigned 32 unsigned 32 8 byte bool bool 2 bit bool 3 bit short signed 32 signed 32 signed 32 signed 32 signed 32 signed 32 word short signed 32 signed 32 signed 32 bool bool 2 bit 3 bit signed 32 signed 32 signed 32 signed 32 Output unused class functionality on off commissioning diagnostic on off unused reserved for future use reserved for future use reserved for manufacturer reserved for manufacturer class 2 parameter unused unused unused manufactory specific parameter unused trigger level 0 H gt L 1 L gt H TDx y error reaction 0 2 SEnn O last valid value 1 min value 2 max value 0 non 1 write EEPROM store all parameter measure mode 0 DF 1 DT 2 VT measure frequency MFnn 1 10000 trigger delay TDx 0 1000 display offset OFnnnn 1000000 output 1 switch limit 0 5000000 Q1w output 2 switch limit 0 5000000 Q2w output 1 hysterese 5000000 5000000 Q1 y output 2 hysterese 5000000 5000000 Q2 y diag update time in 0 1 sec average time SAnn 1 10000 scale factor SFnn n 0 00001 1 0 100000 active output 1 0 5000000 Q1 x active output 2 0 5000000 Q2 x level active range 1 0 1 level active range 2 0 1 mode of pilot laser 0 3 unused measure window x measure window y analog x analog y Page 50 ASTECH GmbH LDM301 302 Manual Interface description
5. measuring range unused 0 serial number reserved for future use Laser temperature in 0 1 C signal strength Page 52 ASTECH GmbH LDM301 302 Manual Interface description Cyclic data exchange Input Slave gt Master The localization data from the LDM301P are signed With the SF parameters scale factor the signs can inverted The resolution is also determined by SF The arrangement of the octet in the telegrams is Profibus compliant big endian e g the MSB comes first and the LSB last Table 16 Profibus Input 4 byte input Octet Type Input 1 4 signed 32 distance value 8 byte input and mode VT Octet Type Input 1 4 signed 32 distance value 5 8 signed 32 speed value Cyclic data exchange Output Master gt Slave The most significant bit in the preset value 32 bit determines the validity of the preset Table 17 Profibus Output Octet Type Output 1 4 signed 32 Preset Value Normal Mode MSB 0 bit 31 Preset Mode MSB 1 bit 31 With the preset value the actual value can be set to a desired value This offset is used internally offset Mose By setting the bit 31 the offset value can be changed It applies the following Mbatarx Output value for cyclic data exchange Maser Value determined by the laser measurement Moztset internally calculated offset Mbreset With the preset function of transferred value ASTECH GmbH Page 53 Interface description LDM301 302 Manual
6. Coding Two s compliment Scaling factor binary values to decimal values 1 10 Speed 3 Byte 2 Byte for distance MSB Bit 7 MSB of Byte 2 always 1 MSB of Byte 1 and O always O Measurement data Byte Bit 6 Bit O Coding Two s compliment Scaling factor binary values to decimal values 1 1000 TE Terminator for the serial interface The command TE parameterizes the termination for the serial interface data when carrying out distance and speed measurement The output format SDO y is necessary The termination for all outputs is always CRLF OxODOA Query TE Set TEx Parameter value 0 9 resolution 1 range x Standard 0 Page 76 LDM301 302 Manual Description of commands Table 27 Termination character s TEx parameter x x 0 1 Hex code 0x0DOA 0x0 D Description CR LF CR SC Format SSI 2 3 4 5 6 7 8 9 0x0 0x0 0x0 0x09 0x20 0x2C 0x3A 0x3B A 2 3 LF STX ETX Tabu Blank Comm Colon Semi space a colon lator SC parameterizes the format x of the SSI codes see 5 6 Query Set Parameter value range x Standard SC SCx Oor1 SCx x 0 binary 25 bit 24 bit and1 bit valid x 1 gray 25 bit 24 bit plus 1 bit valid Bitfolge 24 23 Re Eee BR aaea 2 1 0 MSB Bit 1 24 Distance depending from the scaling factor SF LSB Bit O Valid bit HE Threshold heating HE parameters set thresholds for the switching on and
7. Query Set SD SDx y Parameter value 0 1 2 range x Parameter value range y Standard 00 Description of commands 0 1 2 3 Table 26 Serial output format SDy parameter y The parameter y allows additional to the measurement value the output of signal strength and or the output of temperature Table 26 Serial output format SDy parameter y y SDO y Decimal Measurement value Measurement value Signal strength Measurement value Temperature Measurement value Signal strength Temperature SD1 y Hexadecimal Measurement value Measurement value Signal strength Measurement value Temperature Measurement value Signal strength Temperature Explanation binary output format Distance 3 Byte MSB Bit 7 MSB of Byte 2 always 1 MSB of Byte 1 and O always O Measurement data Byte O and 1 Bit 6 Bit O Coding Two s compliment SD2 y Binary Measurement value Measurement value Signal strength Measurement value Temperature Measurement value Signal strength Temperature Scaling factor binary values to decimal values 1 1000 ASTECH GmbH Page 75 Description of commands LDM301 302 Manual Signal strength 1 Byte MSB Bit 7 MSB of Byte O always O Measurement data Byte Bit 6 Bit O Scaling factor binary values to decimal values 128 Temperature 2 Byte MSB Bit 7 MSB of Byte 1 and O always O Measurement data Byte Bit 6 Bit O
8. Wavelength 635 nm Electrical installation conditions Supply voltage Power consumption Interface Connections Interfaces Serial interfaces Profibus LDM301P SSI LDM3015 Switching output Analog output Trigger for device synchronization Operating modes only LDM301P and LDM301S 10V 30V DC lt 5 W without heating 11 5 W with heating at 24 V 1 x 12 pole Binder series 723 M18 2 x 5 pole Binder series 766 M12 B coded RS 232 or optionally RS 422 9 6 kBaud 460 8 kBaud format 8N1 ASCII DP VO Slave IEC 61158 IEC 61784 9 6 kBaud 12 Mbaud auto detect termination resistor extern slave address can be set via Profibus 50 kHz 1 MHz 25 us pause 24 bit binary or gray coded can be set 2 x High Side switch load up to 0 2 A Permanent short circuit protected Adjustable window function 4mA 20 mA 1 x Trigger IN OUT edge and delay adjustable trigger level 3 VDC 30 VDC Single measurement continuous measurement mean value external Total output error for 20mA 0 15 temperature 25 C Page 22 ASTECH GmbH LDM301 302 Manual Device description Interface Connections triggering adjustable near field suppression and window function Environmental and application conditions Operating temperature 40 C 60 C Storage temperature 40 C 70 C Air humidity 15 90 Dimensions LxWxH 136 mm x 57 mm x 104 mm
9. Weight Approx 800 g Protection degree IP 67 EMC IEC 61326 1 2005 ASTECH GmbH Page 23 Device description LDM301 302 Manual 4 3 Device Types The LDM301 is available in different designs and with different interfaces The following devices are available Table 3 Device types Type LDM301A RS232 LDM301A RS422 LDM301P LDM301S Serial Interface RS 232 RS 422 RS 232 RS 232 Analog output Yes Yes Yes Yes Profibus Yes SSI Yes In addition the devices can be ordered depending on the measurement task with the following features N Increased maximum measurement frequency 10 kHz instead of the standard of 2 kHz Laser with increased divergence 10 mrad instead of standard 1 7 mrad 10 not with LDM301S and LDM301P Page 24 ASTECH GmbH LDM301 302 Manual Device description 4 4 Technical Data LDM302 The LDM302 is a special version of the LDM301 It was designed for badly reflecting surfaces due to an adapted signal processing Both gauges use the same hardware and software basics All the information in this manual are valid for both devices as far as there is no other statement Table 4 Technical Data LDM302 Measurement properties Measurement principle Laser pulse Time of flight measurement Measurement range onto natural surfaces 10 0 5 m 300 m onto target board 300 m 3000 m Measurement precision 14 mm at 100 Hz measuring rate and 10 Hz output range Measurement
10. 20 mA The lower limit may be smaller or greater than the upper limit Accordingly the current range will reverse Inputs of identical limits will be ignored and not accepted Query QA Set QAx y ASTECH GmbH Page 73 Description of commands LDM301 302 Manual Parameter value float32 resolution 0 001 range x Parameter value float32 resolution 0 001 range y Standard 0 50 000 No plausibility check for the QA settings will be carried out in the LDM301 the user is responsible for setting the correct parameterization The measurement window MW see 0 is also valid for the analogue output BR Baudrate BR enables the change of the serial baud rate x A cold start is not necessary after changing the baud rate Query BR Set BRx Parameter value 9600 19200 38400 57600 115200 230400 or range x 460800 Standard 115200 A Setting a very high baud rate implies a risk Some computers for example cannot support a baud rate of 460800 or higher If the baud rate is set by the command BR460800 communication is no longer possible without a compatible interface i e the baud rate cannot be reset to a lower value without a PC support this baud rate SD Output format serial interface SD parameterizes the format x and content y of the output of the serial interface for distance and speed measurements The format can be decimal ASCII hexadecimal ASCII or binary Page 74 LDM301 302 Manual
11. 7 Profibus Interface of LDM301P uuuueensesessesenssnnnnnnnnnnennnnnnnnnnnnn 6 Installation 55 6 1 Preparation Work before the installation cconccocnoncnnccononnos 55 6 2 Checklist for installation works 7 Description Of COMMANAS cccccccccessssssecececeesesesceceesceeseeseeseesceeseseaeees ASTECH GmbH Page 3 Content LDM301 302 Manual 7 1 Overview Of command S e innean aee EE e E eetan eie EPAIEN ean 7 2 Transmission protocol RS 232 and RS 422 7 3 ld ntification sires ii ee 7 4 Operation Mode 7 5 SEA Se ee a heen EE 7 6 Setup Paramete pranan aea e NO 8 Maintenance E E A A S 8 1 Maintenance by the US8T ccccccnonococncnncnnnononannnnncnnonnnnannnnnnnccnnnnnnns 8 2 Firmware update 8 3 T OF EAE AEE E AA 9 Malfunction and error MessageS ccocococoonconccnnononnnnnonccnnononnnnnnncnnonnonannnnnos 9 1 Malfunction 9 2 Error Codes 9 3 Error Status 10 Accessories Options oanrin aari ii 10 1 RS 232 cable ii i e aai ar air EEE 10 2 Connection box TCBLDM ecssccesseeeeceeseeeeceeceecesseeeeceeaeeeseeneeens 10 3 Adjustment bracket e i 10 4 Dot Sight AD30 10 5 Adapter plate 10 6 Dust protection tube 10 7 Protection HOUSING ccccccseseseseseseseseseseseeeseseseseseseseseseseseseeenees 10 8 Software LDMTOOI cecesccecesseceeseeeeceesaececeeaeecesseeeeceenaeeeseeaeeess 11 Part numbers 12 EG Declaratio
12. Enter display set user offset SO BRter pornos ome ap ms set current distance to offset MW Enter MWx MF Enter MFx SA Enter SAx y Enter o display set ERTer ae display set Enterlssassess display set TD Enter TDx y Enter display set SE Enter SEx Enter display set Ql Enter Qlw x y z Enter display set x E y E 02 Enter 02w y z Enter display set QA Enter QAx BARTEL uns display set BR Enter BRx Enter display set SD Enter SDx BHCC a cccw ae display set TE Enter TEx Enterle display set SC Enter SCx Enter cun lt seo display set HE Enter HEx y Enter display set Figure 26 Online Help Command ID measure window measure frequency average value trigger delay level error mode digital output Q1 digital output 02 analog output QA baud rate RS 232 422 data format RS 232 422 terminator RS 232 422 SSI format heater threshold levels ASTECH GmbH Page 61 Description of commands LDM301 302 Manual 7 4 Operation Mode DM Single distance measurement The LDM301 carries out exactly one measurement and waits for new commands afterwards The duration of a measurement depends on the number of the set measurement values SA and the set measurement frequency MF The time between sending the command DM and the output of the measurement value is 500 us maximum DT Continuous distance measureme
13. The LDM301 carries out a continuous measurement From 25 single measurements the speed value is calculated The continuous speed measurement can be stopped with the command RS 232 RS 422 Escape Ox1B The interval between the single measurements depends on the set measurement value SA and the set measurement frequency MF The precision of the speed measurement is derived from the following formula 1 E OE NxvVN vV1300 The following parameters apply f Measurement frequency Parameter MF Oy N Average value Parameter SA Od Standard deviation distance measurement single shot without averaging Oy Standard deviation speed measurement The duration of speed measurement amounts to P 25 N f Assuming the standard deviation of og 3cm for a single distance measurement the following table results ASTECH GmbH Page 63 Description of commands LDM301 302 Manual Table 20 Standard deviation for speed measurement f Hz N 2000 1 2000 5 2000 10 2000 15 2000 20 2000 25 2000 30 7 5 Status TP Internal device temperature ov m s t s 1 664 0 013 0 149 0 063 0 053 0 125 0 029 0 188 0 019 0 250 0 013 0 313 0 005 0 625 The LDM301 outputs the internal device temperature via the serial interface and the Profibus interface The data are output in Degree Celsius C PA Display of all parameters A list of all parameters is output via the serial interface Example measure freq
14. V ED Jens Mirow Managing Director Page 88 ASTECH GmbH LDM301 302 Manual Notice ASTECH GmbH Page 89 Notice LDM301 302 Manual Page 90 ASTECH GmbH
15. be mounted in front of the receiver optics Thread data LDM301 Page 84 ASTECH GmbH LDM301 302 Manual Accessories Options lt LDM301 receiver optics M52 x 0 75 thread depth 5 mm LDM301 receiver optics M41 x 0 5 thread depth 5 mm 054 Pr 105 M52x0 75 gt Figure 32 Dust protection tube 10 7 Protection Housing A protection stainless steel housing with integrated terminal block is optional available Figure 33 Protection Housing ASTECH GmbH Page 85 Accessories Options LDM301 302 Manual 10 8 Software LDMTool A demo version of the software LDMTool is included By purchasing a license number this will become the full version Parameterization and numerical display of measured values can be used indefinitely also in the demo version see Figure 25 Program LDMTool Page 86 ASTECH GmbH LDM301 302 Manual Part numbers 11 Part numbers Table 33 Part numbers Part No 10 2004 00 10 2004 01 10 2004 02 10 2004 03 10 2005 00 10 2005 01 10 2005 02 10 2005 03 10 2006 00 10 2007 00 11 2000 00 11 0001 00 12 2001 01 12 2005 00 12 2006 00 12 2003 02 12 2014 00 12 2016 00 15 2001 00 15 2003 00 15 2003 01 15 2003 02 15 2005 00 15 0000 00 15 0014 00 15 0015 01 12 2010 00 12 2011 00 11 0006 00 17 2000 00 Name LDM301 LDM301 with Option 10kHz LDM301 with Option 10mrad LDM301 with Option 10 kHz und 10mrad LDM301 RS 422 LDM301 RS 422 with Option 10kHz LDM3
16. conditions seinerseits a aa 16 3 1 Electrical installation conditions ooococooccccononccccanonnnonanccanononcncnnnos 16 3 2 Operating and storage CONdItiONS coooococcnncconononannnnncnnnonononnnoncnnnno 16 3 3 Appropriate USO osc ccsecccsascecsdcessccnssnssnececesseecsicn Ssmesecessescseadsecsecesseccena 17 3 4 Improperly use error SOUFCES sesccsccececseseseceeececsestsaeseeeeeseeees 18 4 Device descriptiON oocccoconooooncnncnnconenannnnncnnnononnnncnncnnnnnonnnnonnnnncnnnnnnnnnnos 19 4 1 General device description ooooccccconononooncnnonoconononononcnnnonononnnoncnnnns 19 4 2 Technical Dai o ea 21 4 3 Device Type Sussi con nennen nen ai ha 24 4 4 Technical Data LDM302 uuuenesssssensssnsnnnsnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnn 25 4 5 E CIVERBEM E TE 27 4 6 Functional Elements vvciessissscccdivscteedssecestvisccuesas nirien iai ana 30 4 7 Mechanical Integration Requirements ccoccccoccnccncnononnnnnnonccnnnnnnns 31 4 8 Connector pin assignMentS cccccccncnnnncnnnonnnonononononnnnnnnonnnononananeneness 32 4 9 Status Display 4 10 Pilot Laser eksieissannges 5 Interface descriptiON ccoconocooccnnoconononanncnncnnnonononnnnncnncnnonnnnnnnonccnnonnnnnnos 37 5 1 RS 232 telcel ici doce 5 2 RS 422 interface acoso ens 5 3 Q1 Q2 Digital switching output 5 4 QA Analog output 5 5 Trigger Port ccccconononanononononononononononono 5 6 SSI Interface of LDM301S 5
17. converter Load lt 500 Ohm 0 5W The command to achieve this is QAx_y where un is equivalent to space 0x20 Parameter settings for current output in the event of measurement failure can be made using the command SEx Value Description Specification 21 20 RER lt x Lower Limit x y E y UpperLimit y EX xiy yix Dist Figure 18 Signal diagram of LDM301 analog output The value of output current mA is calculated as follows Dist x x lt y QAlmA 4mA 16 2 mA x gt y QA mA 20 mA 16 mA Figure 19 Behavior of analog current output ASTECH GmbH Page 41 Interface description LDM301 302 Manual weiss braun grun gelb grau rosa blau rot schwarz violett 24V 10 30V grau rosa S r JA T O n m OO W gt rot blau Figure 20 Wiring analog output QA of LDM301 Page 42 ASTECH GmbH LDM301 302 Manual Interface description 5 5 Trigger Port The trigger port allows two different uses 1 Start a single distance measurement DF by an external signal in the form of a voltage pulse the delay of the release trigger trigger delay and to triggered edge trigger level may be set 2 Interconnection of several LDM301 a b The first LDM301 is working as master in the mode DT or DM when the laser impulse is started a trigger signal is sent simultaneously The 2 LDM301 and further LDMs work
18. interface Terminating character for output via serial interface Standard s 200 1 0 5000 000 0 000 0 50 000 2 000 5000 0 100 1 4 000 5000 0 100 1 115200 Range s 1 30000 0 001 10 float 32 float 32 float 32 float 32 float 32 float 32 float 32 float 32 Oori float 32 float 32 float 32 Oori 9600 19200 38400 57600 115200 230400 460800 0 22 023 OO Page 58 ASTECH GmbH LDM301 302 Manual Description of commands Command Class Command SCx PLx HEx y Description SSI format Pilot Laser Heating Standard s 0 0 410 Range s ommi 0 3 60 40 60 45 x lt y ASTECH GmbH Page 59 Description of commands LDM301 302 Manual 7 2 Transmission protocol RS 232 and RS 422 Interface settings asynchronous 8 data bits no parity 1 stop bit Communication protocol format syntax 7 bit ASCII Proprietary communication protocol Commands are not case sensitive no distinction between small lettering and capital lettering Period Ox2E serves as decimal separator for output of numbers Enter OxOD is used as command send command termination character With multi value parameters space 0x20 is used between each two values A parameterization command with new parameters triggers a response command with these parameters A parameterization command without new param
19. of commands Table 19 Overview of commands Command Command Description Standard s Range s Class Operation DM Single distance measurement gt gt Mode DT Continuous distance measurement gt DF Single distance measurement with external triggering VM Single speed measurement VT Continuous speed measurement Status TP Internal device temperature in C PA All parameter display HW Hardware diagnosis Setup PR Reset to factory settings Parameter DR Triggers a cold start ASs Auto start function DT ID ID DM DT DF VM VT TP HW PA MF TD SA SF MW OF SE Q1 Q2 QA BR SD TE BB AB SC PL AS MFx Measuring frequency Hz 2000 1 2000 TDx y External trigger delay ms and trigger 00 00 0 300 00 level edge 0 Oor1 ASTECH GmbH Page 57 Description of commands LDM301 302 Manual Command Class Command SAx SFx MWx y OFx so SEx QAx y Qlw x y z Q2w xyz BRx SDx y TEx Description Mean value Scale factor Measuring window at beginning and end Distance offset end Single distance measurement and acceptance as distance offset Error mode for Q1 Q2 and QA Analogue output with lower and upper limit Q1 switching output with trigger threshold switching range hysteresis and switching state Q2 switching output with trigger threshold switching range hysteresis and switching state Baud rate Output format of serial
20. of the laser diode Page 18 ASTECH GmbH LDM301 302 Manual Device description 4 Device description 4 1 General device description The laser distance measurement device LDM301 is intended for distance measurement onto static and moving objects with a precision down to the centimetre Measurement in the range of 0 5 m 300 m onto natural surfaces with 90 reflectivity Measurement onto reflectors e g Scotchlite 3000x at distances between 300 m and 3000 m For speed measurement in the range of 0 m s 100 m s distance 0 5m 700 m AN For measuring distances lt 300 m the use of glass reflectors triple mirrors is not recommended as a distortion of measurement values can be caused by overload Pilot Laser With the red laser measurement spot pilot laser the measurement target can be clearly identified The range depends on the reflectivity and the surface properties of the measurement target Serial interfaces The LDM301 is equipped either with an RS 232 or with an RS 422 interface The device configuration is carried out during the assembly The device cannot be changed retroactively Outputs The device is equipped with two switching outputs an analog output 4 mA 20 mA and an external trigger connection All outputs are parameterizable Heating ASTECH GmbH Page 19 Device description LDM301 302 Manual When certain temperature thresholds are exceeded the heating is swic
21. off the internal heating Query Set Parameter value range x Parameter value range y Standard HE HEx y 60 40 C 60 45 C x 4y 10 C ASTECH GmbH Page 77 Description of commands LDM301 302 Manual For the switching of the heating the internal temperature measured with the set parameters is compared Internal temperature lt x HeatON heating is switched on Internal temperature gt y HeatOFF heating is switched off For the parameters must be considered x HeatON lt y HeatOFF Page 78 LDM301 302 Manual Maintenance 8 Maintenance 8 1 Maintenance by the user Please observe the following advice Dust on optical glass surfaces transmitter and receiver optics can be removed with a blower brush Don t clean glass surfaces using cleaning agents containing organic solvents In case of heavy pollution please contact the manufacturer Isopropyl alcohol is suitable for cleaning the device Do not use any solvents Do not open the device otherwise the warranty obligations shall cease to apply Do not loose any screws of the device 82 Firmware update Firmware updates of the sensor electronics of the LDM301 may only be done by the manufacturer 83 Repair In case of necessary repair send the device to your dealer or to the manufacturer Ensure the safe packaging and provide information about the conditions of use application installation e
22. parts are fogged or dirty The optical components of the equipment should not be touched with bare hands Dust and dirt are removed from the optical components with extreme caution Cleaning with solvents or mechanical means is not allowed The device must be protected against overheating The device will not be switched off automatically when the operating temperatures are exceeded The persisting overheating of the device will lead to a reduced lifetime of the laser diode The device must be protected from impact The device must be protected from extreme temperature The devices of the LDM301 series can vary with regard to the divergence of the laser diode and the maximum measurement frequency displayed on the laser labels A second laser warning sign is inside the delivery It is to be attached to the installation place and must be easy to view for the operator ASTECH GmbH Page 13 Safety advice LDM301 302 Manual fluctuations When extreme temperature fluctuations are occurring use additional protection housing A It is not allowed to operate the device in explosive environments The device corresponds to the protection degree IP 67 and is protected against jet water and short submersion Please observe the conditions for the protection degree IP67 and observe especially the following advice The device must not be exposed to persisting driving rain or high temperature variations f the device i
23. 01 RS 422 with Option 10mrad LDM301 RS 422 with Option 10 kHz und 10mrad LDM301S LDM301P Power supply 24V 1A Euro 1m USB RS 232 Interface Converter 0 2m Connection Box for LDM301 Adapter Plate LDM301 Dot Sight AD30 Protection housing for LDM301 Adjustment bracket for LDM301 Dust Protection Tube 100mm for LDM301 RS 232 Kabel D SUB9F L sterkl 2m Main Cable LDM301 2m Main Cable LDM301 5m Main Cable LDM301 10m Main Cable Connector LDM41 42A LDM301 Terminator for Profibus OUT Cable Plug Profibus OUT 4 pin B coded Cable Connector Profibus IN 5 pin B coded Reflective Foil Matt White A4 Highly Reflective Silver Foil A4 ASTECH USB Stick Documentation and Software License Number for PC Software LDMTool Note Several sensors are available as packages including sensor cable manual and CD Set ASTECH GmbH Page 87 EG Declaration of conformity LDM301 302 Manual 12 EG Declaration of conformity Ce We herewith declare represendted by the signatories that the following designated product Laser distance sensor LDM301 agrees with the Directive of Electromagnetic Compatibility 2004 108 EG The following harmonized standards were considered IEC 61326 1 2005 Electrical equipment for measurement control and laboratory use EMC requirements Part1 General requirement IEC 61326 1 2005 German Version EN 61326 1 2006 Rostock 5 August 2014 ASTECH Angewandte Sensortechnik GmbH 637
24. 1 302 Manual Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 23 Table 24 Table 25 Table 26 Table 27 Table 28 Table 29 Table 30 Table 31 Table 32 Table 33 List of tables Electrical installation CONAItiONS ooconnccccnonocanononccnnononcncnananancnnnccnnno Technical dia oa NO Technical Data LDM302 uuessssssnessnsneneennnnnnnnnnnnnnennnennnennnennnnnnnnnn Beam size for LDM301 with 1 7 Mrad seccecesssececseeeceesteeeceeneeers Beam size for LDM301 with 10 mrad Beam size for LOMZ O2 serso sesioni oessa tiidens isn Pin assignmens of main connector port cccccccceessseceeeeeeessssteaeees Status display FUNCIONS cccocoococcnncconononoonnnnonocanonononnnoncnnonannnnnnonononos Profibus baud rate depending on segment length Profibus cable type A featur8S cooooooocnncnocononooncnnnonnnnnanoncnncnncnnonannnnnos Explanation Profibus parameters ccccconocooncnncnonononnnnnnnonncnnonannnnnos PrOTIDUS parameter ss iisccsscseesccessncssusiees scasoavscavcaceeowavsutdcaceedessaveodecceas Profibus diagnostic data length cccconccooccnncnncononaannncnnnonanananonoss Profibus diagnostic data cccconocooccnncnncononnnnnnnnnnnnananononncnncnannnnnnnnos O ansehen Profibus Outpu
25. 1 provides three support pads Figure 7 with mounting holes M4 x 6 2 Attachment to casing bottom Likewise the LDM301 provides three support pads Figure 7 with mounting holes M4 x 6 for attachment to the bottom face of its casing 3 Attachment via adapter plate replacement of LDM300C To replace an LDM300C with an LDM301 an adapter plate is required This plate must be screwed to the bottom side of the LDM301 GE CI as 1 M4x6 Figure 7 Dimensions and position of the zero point in mm ASTECH GmbH Page 31 Device description LDM301 302 Manual The zero point of LDM301 corresponds to the external surface of the front cover 4 8 Connector pin assignments Depending on the implemented configuration version of the various LDM 301 models different terminal facilities are available for connections All models share the same type of main connector port Main Connector Port M18 The main connector port see Figure 6 Functional Elements no 11 includes the terminal points for voltage supply for serial data communication RS 232 or RS 422 for the two switching outputs Q1 and Q2 one analog output QA and for one trigger port TRIG A shielded cable must be used for connection This cable is included in delivery white A TxD RX brown B RxD RX green C TRIG yellow D QA grey E n c TX pink F nc T blue G VCC red H n c black 5 GND violet K Q2 grey pi
26. 1P Profibus IN 5PEX GND B Shield ae win Be M12 f Figure 11 Connection diagram LDM301P Profibus OUT Page 34 ASTECH GmbH LDM301 302 Manual Device description 4 9 Status Display Figure 12 Status Display Table 9 Status display functions LED Function Display Status Target Reflectivity Off No signal Red blinking Very weak signal Red Weak signal Yellow Signal available Green Good signal Green blinking Very good signal Status Readiness for Off No operating voltage action Red Technical defect Voltage Green supplied Ready for action Ql Switching Off Off output 1 Yellow Operating voltage supplied Q2 Switching Off Off output 2 Yellow Operating voltage supplied Link Status Off No field bus interface Red Profibus error Yellow Operating voltage supplied Profibus inactive Green Operating voltage supplied Profibus working ASTECH GmbH Page 35 Device description LDM301 302 Manual 4 10 Pilot Laser The pilot laser see Figure 7 is intended to support alignment to a given target point during start up action of the LDM 301 It qualifies as a Class 2 Laser device and operates at 635 nm red in the visible range The pilot laser is not aligned to emit in a direction parallel with the measurement Laser Instead its beam intersects with that of the measurement Laser at a distance of 75 m Figure 13 shows the tolerance on pilot laser position in relation to the invisible measurement laser as a fu
27. For using the heating direct current voltage of 24 V is recommended Page 16 ASTECH GmbH LDM301 302 Manual Operating conditions 3 3 Appropriate use The device is intended for the following applications Distance and speed measurement and output of measured data via the interfaces RS 232 RS 422 analog output SSI or Profibus gt gt Use ofthe special measurement functions Operating with the correct voltage Observing the environmental conditions operating and storage temperature Use in industrial environments complying with the standard IP 67 protected against splash and jet water Control of the data interfaces using the indicated signal levels Measurement through optically transparent material Measurement through optically transparent materials such as glass optical filters acrylic glass etc can lead to erroneous measurement results When measuring through optically transparent material use the function measurement window By defining a fixed measurement range using this function the display of an erroneous measurement value caused by the optical medium in front ofthe laser can be avoided Please take care that the surface of the medium is clean and light transparent Measuring distances lt 8 m Due to the optical system of the receiver the device LDM301 with a divergence of 1 7 mrad receives only scattered light at distances lt 8m Therefore measurement in this range is only possible ont
28. LED is green signal strength gt 1500 Laser beam not on traffic signs weak signal target LED is red signal strength lt 1000 Vertical and horizontal adjustment of the rear sight on the edge of the target by using the 2 screws red dot adjust to edge Check the results Red dot and laser beam on the target results in strong signal Red dot and laser beam near the target signal strength is lower than before 10 5 Adapter plate An adapter plate can be delivered for attaching the LDM301 This adapter plate is bolted to the case back of the LDM301 and offers different options for adapting the device e g a tripod thread 20 UNC When replacing the LDM300C by an LDM301 the existing fixing holes can be further used For parameter setting an optional programming cable is available to link the LDS30 with a PC COM port RS 232 The use of the PC software LDMTool is recommended ASTECH GmbH Page 83 Accessories Options LDM301 302 Manual rs ZA 1x45 1 gt um A A A w a 1 4 20 UNC 78 24 30 0 1 gt gt 4 3 87 5x3 3x 16x45 5 94 5 4x A A A o A n A S 2 Q o H Y o H 8 7 gt mn Y y A in N Y Y Y A oo 53 5 0 1 M6 4x pus 6 Ll 66 0 1 ss Figure 31 Adapater plate 10 6 Dust protection tube The dust tube protects the receiver channel against soiling and against lateral d c light which can limit the measurement capabilities The dust tube can
29. Manual LDM301 302 Firmware Version from 1 5 Version 1 7 LDM301 302 Manual Dear User You are advised to carefully read this User Manual before turning on the Laser Distance Sensor LDM301 LDM302 for the first time This is necessary to ensure that you will be able to use all the capabilities and features provided by your new purchase This product is subject to ongoing technological developments Editorial deadline June 2015 Firmware version 21 5 Manual version V1 7 File Manual_LDM301 302_EN_V1 7 docx Note Proper care has been used in compiling this document No liability will be accepted in the event of damage resulting from the failure to comply with the information contained herein Revision history Manual Version Date Changes 1 7 01 06 2014 New design ASTECH GmbH Schonenfahrerstr 5 D 18057 Rostock Internet www astech de E Mail info astech de Telefon 49 0 381 44073 0 Telefax 49 0 381 44073 20 Page 2 ASTECH GmbH LDM301 302 Manual Content l Content 1 General Information cccceceeececeseececeeeeeceeceeeceeaaececseeeeceeneeecesqaeeeseeneeess 8 2 Safety advice oeiee ren enden 10 2 1 Basic safety advie iii tail iii 10 2 2 Safety advice for operating the laser ooooocccnccoconococcnonononononannnnoss 11 2 3 Advice for operating device ocoocococcnnccnnononoonnononncononannnnncnncnananononnos 13 2 4 NOMS isis ais 15 2 5 BIT 10 CY E E E E E E 15 3 Operating
30. ata Octet 1 2 3 4 10 11 14 15 16 17 13719 20 21 22 23 24 25 26 27 28 31 32 35 36 39 40 43 44 47 48 57 58 59 60 61 62 63 Bit NOW BP WN ho eo fF Oo Type byte byte byte byte word byte byte bool bool bool bool bool bool bool bool byte unsigned 32 unsigned 16 bool bool bool bool word word word word unsigned 32 signed 32 signed 32 unsigned 32 unsigned 32 10 byte word short short Input diag state 1 Profibus default diag state 2 Profibus default diag state 3 Profibus default diag state 4 Profibus default slave diag Profibus default class 1 diagnostic extended diag header length class 1 0Ahex class 2 39hex alarms unused unused class functionality on off commissioning diagnostic on off Unused reserved for future use reserved for future use reserved for manufacturer reserved for manufacturer operation status para byte 9 class 2 diagnostic encoder type 7 absolute linear encoder single turn resolution 100000nm 0 1mm no of distinguishable revolutions unused 0 E98 Timeout SIO E99 Unknown Error E02 No Target E04 Laser defect warnings unused 0 warnings unused 0 profile version 1 1 0110 hex software version 1 11 0111 hex operating time of Laser in 0 1 h offset value see output data manufacture offset unused 0 measuring units per revolution unused 0
31. correct parameterization 01 02 Switching output Commands Q1 Q2 parameterizes the behaviour of the switching outputs Q1 or Q2 see text and diagram of the switching behaviour in chapter 5 3 It can be parameterized the start w of the measurement range when the output switches the length x of the measurement range and the hysteresis y and the logical behaviour z Query 01 02 Set Qlw x y z Q2w x y z Page 72 LDM301 302 Manual Description of commands Parameter value float32 resolution 0 001 range w Parameter value float32 resolution 0 001 x gt 0 x gt y range x Parameter value i float32 resolution 0 001 y gt 0 range y Parameter value Oori range z Q1 2 5000 0 1 1 Standard Q2 4 5000 0 1 1 Table 25 Function of the switching outputs under different modes Output VT Speed measurement DT DM DF Distance measurement Q1 Speed Distance Q2 Distance Distance No plausibility test for the settings of Q1 resp Q2 are carried out the user is responsible for setting the correct parameterization When carrying out speed measurement using an LDM301P with the Profibus interface please observe that the switching threshold w for Q1 can only be set with positive numbers target departs from the LDM301P QA Analogue output The command QA parameterizes the behaviour of the analogue output QA see 5 4 Available for setting are the lower limit x and the upper limit y of a current range from 4 to
32. d M12 f Profibus OUT 3 Figure 24 Profibus connection diagram LDM301P M12 connector Profibus Parameter With the help of a GSD file a PB master creates parameters for the slave and has to send these data at least once to the slave before the slave can be used for the cyclical data exchange The slave is programmed with sufficient tolerance for being usable only with the 7 byte standard PB parameters also without profile specific user parameters Page 48 ASTECH GmbH LDM301 302 Manual Interface description Table 12 Explanation Profibus parameters Name Class 2 function Commissioning Diagnostics Measure mode Trigger delay and level Averaging Measurement frequency Offset Scale factor Error mode Pilot Laser Measurement window Diagnostic interval Alarm 1 2 Alarm active range 1 2 Alarm hysteresis 1 2 Alarm level active range 1 2 Description Selection of the slave type according to the encoder profile Send more than the 6 byte standard diagnosis 16 Byte as Class1 Slave 77 Byte as Class 2 Slave Operating mode Trigger of the laser DF DT Values are transferred directly to the command TDx x only with DF extern The value is transferred to the command SAn number of the values for the mean value determination Number of measurements per second 1 2000 bzw 10000 is transferred to the command MFn An offset can be added to the measurement value co
33. e By the SSI master the current measurement data is collected it sends to the clock for the shift register in the slave The SSI slave sends its data from the shift register bit by bit to the master Depending on the length and quality of the data cable transfer rates of 50 kHz to 1 MHz at 25 microseconds interval time between two bit streams are possible The data length is 24 bits plus one validity bit The format can be binary or gray encoded For parameter settings via the serial interface the SCx command is available SCx x 0 binary 25 bits 24 bits plus 1 validity bit x 1 gray 25 bits 24 bits plus 1 validity bit Bit stream 24 x re 2 1 0 MSB Bit 1 24 distance depending on preset scale factor LSB Bit O validity bit Electrical Connection SSI il SSI D 2 SSI D 3 SSI C 4 SSG 5 Shield SSI 2 Mi24 Dummy 3 Figure 23 SSI connection diagram LDM301S M12 connector ASTECH GmbH Page 45 Interface description LDM301 302 Manual 5 7 Profibus Interface of LDM301P General LDM301P supports the Encoder Profile of the Profibus No 3062 of the PNO The LDM301P is used here as a linear encoder As part of the encoder profile the LDM301P can work as Class1 or Class2 recommended encoder All variants are implemented via the GSD file In addition to the specific profile data the LDM301P provide specific settings These relate to the cont
34. e device Connectors may not be plugged or unplugged when voltage is applied All installation work may only be carried out when no voltage is applied The device may only be operated as intended and in faultless condition Safety installations must not be rendered ineffective Safety and warning signs must not be removed Protection Class 3 low voltage The device LDM30x operates with low voltage of DC 10 to 30 volts ASTECH GmbH LDM301 302 Manual Safety advice A Protection degree In accordance with the Protection Degree IP67 the LDM30x is protected against jet water and dust and against short submersion into water When operating the device under extreme outdoor environmental conditions the use of additional weather protection is recommended e g a cover plate with a short distance to the LDS30A Rapid temperature changes can lead to humidity entering the device A The device is not shatter proof Do not let the device fall onto the E ground and avoid any shock The device is delivered in a solid cardboard box which is suited for the transport of the device A The device may not be used in explosive environments otherwise there is the danger of damage to the LDM30x and the surrounding equipment and of injuries of the user 2 2 Safety advice for operating the laser The LDM30x is equipped with two lasers Laser for measurement invisible Laser Class 1 Pilot Laser visible red Laser Class 2 Safety ad
35. ed Pin LDM 301 Colourcode Name LDM 301 Shield Cable shield A white TxD B brown RxD J black GND G blue VCC 10 V 30 V DC L grey pink GND ASTECH GmbH Page 81 Accessories Options LDM301 302 Manual A a Attention Heed cable colours b blue VCC and gray pink GND Please use only high quality shielded cable RS 232 Cable TxD and RxD are necessary to cross 10 2 Connection box TCBLDM A junction box with built in terminal block and accessories are available optionally 10 3 Adjustment bracket The adjustment bracket facilitates the alignment of the device to the target It allows a rotation of 5 in two axes 10 4 Dot Sight AD30 The AD30 is designed to facilitate alignment of the measuring object The sight is attached with its 11 mm guide with the rail on the top of the LDM301 The sight must be adjusted after assembly and before use Figure 30 Red dot sight It is recommended to carry out the adjustment of the dot sight to the measurement beam of the LDM301 in the following way Connect RS 232 to the PC Start the program LDMTool Use mode DT with parameter SDO 1 distance signal strength Set the sight switch on 0 off With LDM301 target an edge of a highly reflective target for example traffic signs Page 82 ASTECH GmbH LDM301 302 Manual Accessories Options Check the signal strength of the LDM301 Laser beam on traffic signs strong signal target
36. erated on a Profibus please connect successively and set different addresses Bus Termination For LDM 301 operation an external bus terminator must be installed Voltage supply of 5 V required for the terminator is available at Profibus OUT This 5 V supply is electrically isolated from general voltage supply VCC and rated for a current load up to 100 mA The terminating resistor is available as an accessory item Baud Rate The LDM 301 provides automatic detection of the following baud rates 9 6 19 2 93 75 187 5 500 k baud and 1 5 3 6 12 MBaud Segment Length The maximum allowed segment length between to Profibus participants depends on the selected baud rate The following rules on segment lengths must be fulfilled Table 10 Profibus baud rate depending on segment length Baud rate baud Segment length m 9 6k 93 75 k 1200 187 5 k 1000 500 k 400 1 5M 200 3M 12M 100 To comply with the segment rules the use of cable type A is strongly recommended ASTECH GmbH Page 47 Interface description LDM301 302 Manual Table 11 Profibus cable type A features Parameter Value Wave resistance 135 165 Ohm Capacitance per unit length lt 30 pf m Loop resistance lt 110 Ohm km Cable wire diameter gt 0 64 mm Cable wire cross section gt 0 34 mm Profibus Electrical Connection 1 n c 2 A 3 n c 4 B 5 Shield M12 m 1 SPEX 2 A 3 GND 4 B 5 Shiel
37. eters triggers a response command with most recent parameters A parameterization command with parameters out of valid setting ranges triggers a response command with most recent parameters An unknown command and a faulty parameter format are quitted with 2 0x3f 7 3 Identification ID Identificaton In response to an ID command the LDM 301 outputs its manufacturing data in this order product type firmware version firmware data firmware time serial number date of manufacture and time of manufacture Example LDM 301 1 5 0 R 03 07 2010 11 31 060001 11 04 2010 08 56 Page 60 LDM301 302 Manual ID Online Help Description of commands On triggering an ID command an overview of all available operations and parameters will be displayed to the user These are explained in the following sections DM BAC a AAA single distance ETTENESET iia das di continuous distance internal trigger DE Ener 45055 RE ae continuous distance external trigger VMIENRtEr imc single velocity VI Enke said ae continuous velocity internal trigger TEIENLEr AAA EE EEEE ETTET internal temperature C BW ERES Ts sense hardware status PAIBRGEE ran display parameter AS Enter ASxyz Enter display set autostart command PL Enter PLx Enter display set pilot laser PR BARES les 0 reset parameter mat A reset device SF Enter SFx Enter display set scale factor OF Enter OFs
38. hted on or off automatically Values preset in the factory 4 C heating is switched on and 10 C heating is switched off The values can be specifically configured by the user refer to REF HE Page 20 ASTECH GmbH LDM301 302 Manual Device description 4 2 Technical Data Table 2 Technical data Measurement properties Measurement principle 4 Measurement range 5 onto natural surfaces 6 onto target board Measurement precision Measurement value resolution distance Measurement time for distance 7 Measurement range for speed Measurement time for speed Laser Laser for measurements Laser pulse Time of flight measurement 0 5m 300 m 300 m 3000 m 20 mm measurement value output 100 Hz measurement frequency 2 kHz 60 mm measurement value output 2 kHz 1mm Standard 0 5 ms Special version 0 1 ms O ms 100 ms 0 1s 0 55 Laser class 1 infrared non visible Laser beam divergence Standard 1 7 mrad Option 10 mrad Wavelength 905 nm depends on the reflection properties of the target ambient light influence and atmospherically conditions natural diffusely reflecting surfaces under 10 m don t use low reflective materials dark black surface for target e g Scotch Lite 3000x 7 Distance range 0 5m 700 m ASTECH GmbH Page 21 Device description LDM301 302 Manual Laser Pilot Laser Laser Class 2 red visible
39. ing as slaves in mode DF Trigger input They will start a measurement after the first LDM301 By a temporal delay between the measurements which is adjustable with the trigger delay interference between the devices can be excluded The trigger frequency corresponds to the set frequency MF of the first LDM301 Parameter TD z 0 mandatory x delay is necessary15 interference between the different LDM301 is avoided The parameterization of the trigger connection is carried out via the serial interface Command TDx_y u u corresponds to empty space 0x20 The trigger function is only active in the measurement mode DF Voltage level for the trigger signals Low level 0 1 5V High level 3 30V Threshold 2 25 V Hysteresis 0 1V 13 Depending on the measuring time see also TD and SA ASTECH GmbH Page 43 Interface description LDM301 302 Manual weiss braun grun gelb grau rosa blau rot schwarz violett 24V 10 30V grau rosa S i A TIT O n m OO AO W gt rot blau Figure 21 Example fort he external wiring oft he trigger input TRIG LDM301 LDM301 DT DM DF h LDM301 DF Figure 22 Interconnection of several LDM301 devices Page 44 ASTECH GmbH LDM301 302 Manual Interface description 5 6 SSI Interface of LDM301S Specification The LDM301S is equipped with an SSI data interface SSI synchronous serial interfac
40. isions 1 000000 measure window MW 5000 000 5000 000 distance offset OF 0 000 error mode SE si digital out Q1 0 000 0 000 0 000 1 digital out Q2 0 000 0 000 0 000 1 analog out QA 1 000 300 000 RS 232 422 baud rate BR 115200 RS 232 422 output format SD dec 0 value 0 RS 232 422 output terminator TE ODh OAh 0 SS MOMs SS vssaauaanenniaian bin 0 pilot laser PL 2 autostart command AS ID heater threshold levels HE 410 Figure 28 Parameter reset command PR DR Release cold start DR carries out the cold start of the LDM301 and basically simulates an interruption of the voltage This command is useful for example when the Autostart command was changed ASTECH GmbH Page 67 Description of commands LDM301 302 Manual SF Scaling factor SFx enables the scaling of the output measurement value by the parameterization of the factor x Query SF Set SFx Parameter value 10 0 001 and 0 001 10 resolution 0 000001 range x Standard 1 000000 OF Offset With OF the user specific offset x is parameterized This value is added to the measurement value Query OF Set OFx Parameter value float32 resolution 0 001 range x Standard 0 000 No plausibility test of the set offset is carried out within the LDM301 the user is responsib
41. le measurement in milliseconds y denotes the edge for triggering O the trigger is released at a falling edge from High to Low 1 the trigger is released at a rising edge from Low to High zsets the mode with respect to SA O atrigger causes a laser pulse and after SA measurements one output will follow 1 atrigger causes a number of SA laser pulses and after that one output Query TD Set TDx yz Parameter value O 300 00 msec resolution 0 01 msec range x Parameter value Oori range y z Standard 0 0000 If a trigger impulse is received before the actual measurement process is finished the LDM301 ignores the new trigger impulse A new measurement ASTECH GmbH Page 71 Description of commands LDM301 302 Manual procedure is released with the following trigger impulse The parameter z is not valid for device LDM301P SE Error Mode SE parameterizes the behaviour of the switching outputs Q1 and Q2 and of the analogue output QA in case of erroneous measurements as well as the device state after carrying out a single measurement Query SE Set SEx Parameter value 0 1 2 Table 23 Spread of distance measurement range x Standard 1 Table 24 Error Mode SEx values for x x Q1 Q2 z 0 Q1 Q2 z 1 QA 0 Last value Last value Last value al High Low 3mA 2 Low High 21 mA No plausibility test for the set error mode is carried out in the LDM301 the user is responsible to set the
42. le to set the correct parameterization SO Set offset With the parameter SO a single distance measurement is carried out and set as OF Offset SO can only be executed in this way it is not a parameter in the strict sense SO is used for the zero adjustment of applications systems processes etc MW Measurement window The range of the measurement window is parameterized with MW which outputs only measurement values within the window starting with x and terminating with y Page 68 LDM301 302 Manual Description of commands The measurement window is used e g for Blanking out interfering objects before and behind a measurement range Setting an effective measurement range The detection of an object in front of or behind a measurement window will result in the output of an invalid measurement value Query MW Set MWx y Parameter value a float32 resolution 0 001 range x Parameter value float32 resolution 0 001 range y Standard 0 000 5000 000 No plausibility test for the set measurement window will be carried out in the LDM301 the user is responsible for carrying out the correct parameterization MF Measurement frequency Hz With the command MF the number x of the single impulses to be sent per second can be parameterized Query MF Set MFx Parameter value 1 2000 resolution 1 range x Standard 2000 MF1000 e g means that 1000 single impulses are sent per seco
43. n of conformity Page 4 ASTECH GmbH LDM301 302 Manual List of figures ll List of figures Figure 1 Device warning sign ccccccccccnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnonononnnonnnnnns 13 Figure 2 Position of the device warning sign coococcccnnccocononnnnnnnccononennnnnnncnnnns 13 Figure 3 Beam diagram for LDM301 with 1 7 mrad cccococcocccncconononnnnnnncnnnns 27 Figure 4 Beam diagram for LDM301 with 10 mrad ccococcccoccnnccncononnnncnncnnnns 28 Figure 5 Beam diagram for LDM302 Figure 6 Functional Elements cccccncocococnnnncnonononnnnnoncnnnnnonnnnnoncnnnnnnncnnnncnnins Figure 7 Dimensions and position of the zero point in mm 31 Figure 8 Connection drawing of the main connector ccccocccccnccnccncononnnncnncnnnns 32 Figure 9 Connection diagram LDM301S SSl cc sccccccccsssssstsecececseseeseseeeeeees 34 Figure 10 Connection diagram LDM301P Profibus IN cccccononocnoncnncnnons 34 Figure 11 Connection diagram LDM301P Profibus OUT neeeeenenee 34 Figure 12 Status Display aaa 35 Figure 13 Pilot Laser position relative to measurement laser 36 Figure 14 Wiring RS 232 to D Sub O oocooccccncnnccononoonnnnonccnnonoononcnnccnconennnnnnncnnnns Figure 15 Wiring RS 422 to RS 422 UNit ccccccccnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnns Figure 16 Switching behavior of digital outputs
44. nction of the distance to an object being measured v ne an A hu Figure 13 Pilot Laser position relative to measurement laser Page 36 ASTECH GmbH LDM301 302 Manual Interface description 5 Interface description For interfacing the LDM 301 provides different connectors depending on the type see chapter 4 3 Device Types A main connector port Figure 7 is used for RS 232 or RS 422 interface and analog output and additional connectors provide SSI interface Figure 8 no 3 or Profibus interface Figure 8 5 1 RS 232 interface TxD weiss braun grun gelb grau rosa blau rot schwarz violett grau rosa S r JA Z O n m O LA wy gt rot blau Figure 14 Wiring RS 232 to D Sub 9 ASTECH GmbH Page 37 Interface description LDM301 302 Manual 5 2 RS 422 interface RX weiss braun grun gelb grau rosa blau VCC rot schwarz violett grau rosa rot blau Sl r JA u L O n mM O n ol gt Figure 15 Wiring RS 422 to RS 422 unit Page 38 ASTECH GmbH LDM301 302 Manual Interface description 5 3 Q1 Q2 Digital switching output The purpose of Q1 and Q2 is to represent distance readings as logic operation data They report events of positive or negative exceeding of a preset switching range with a certain amount of hysteresis Accordingly they are perfectly suited for direct rep
45. nd The measurement time and the transmission of the measurement result via a serial interface also depend from the parameter SA ASTECH GmbH Page 69 Description of commands LDM301 302 Manual Examples MF1000 SA1000 Measurement time 1s output of 1 measurement value per second MF2000 SA1000 Measurement time 0 5 s output of 2 measurement values per second MF2000 SA20000 Measurement time 10 s output of 1 measurement value every 10 seconds SA Average value With the command SA the number x of the single measurement values are parameterized From these values a mean value will be calculated for a measurement SA is directly dependent from the parameter MF see also page 69 Query SA Set SAx Parameter value 1 30000 resolution 1 range x Standard 200 The dispersion of the measurement values can be reduced by calculating the mean value 01 Osa VSA Where Osa Dispersion after mean value calculation 01 Dispersion of the single measurement value 60mm SA Number of mean values Page 70 LDM301 302 Manual Description of commands Table 23 Spread of distance measurement f Hz MF SA Output oSA mm frequency Hz 2000 1 2000 60 2000 2 1000 43 2000 4 500 30 2000 20 100 14 2000 200 10 5 TD External trigger delay level mode With the command TD the behaviour in the external trigger mode DF is parameterized xis the delay for trigger an sing
46. nk L GND red blue M Q1 Figure 8 Connection drawing of the main connector Page 32 ASTECH GmbH LDM301 302 Manual Device description AN Heed cable colours blue VCC and gray pink GND Please use gt only high quality shielded cable Table 8 Pin assignmens of main connector port Pin Colour code RS 232 RS 422 Description of cable A White TxD RX RS 232 send data RS 422 receive data B Brown RxD RX RS 232 receive data RS 422 receive data Green TRIG TRIG Trigger port D Yellow QA QA Analog output 4 20 mA E Grey TX TX RS 422 send data F Pink TX TX RS 422 send data G Blue vcc vcc Supply voltage H Red n c n c not connected J Black GND GND GND K Violet Q2 Q2 Switching output Q2 L Grey pink GND GND GND M Red blue Q1 Qi Switching output Q1 SSI Port of LDM301S M12 The connection to the SSI interface of the LDM301S is accomplished via a 5 pole B encoded M12 male connector Shielded cables should be used for connection The second M12 connector is not used ASTECH GmbH Page 33 Device description LDM301 302 Manual 1 SSI D 2 SSI D 3 SSI C 4 SSI C 5 Shield M12 f Figure 9 Connection diagram LDM301S SSI Profibus Port of LDM301P M12 For Profibus connection there are 3 B encoded 5 pole M12 connectors The connection must be made with Profibus conform cables n c A nie B wa Bw N HM Shield M12 m Figure 10 Connection diagram LDM30
47. nt Continuous distance measurement is carried out and can be stopped with the suitable command RS 232 RS 422 Escape Ox1B The output rate of the measurement depends on the number of the set measurement values SA and the set measurement frequency MF DF Measure single distance with external triggering The operating mode DF must be set for the LDM301 When an external trigger signal is received the device carries out exactly one measurement and waits afterwards for the next trigger event in the operating mode DF The operating mode must be terminated with the corresponding command RS 232 RS 422 Escape 0x1B9 The trigger event has to be applied to the external trigger connection see chapter 5 5 The intervals between the single measurements depend on the set measurement values SA the set measurement frequency MF and the set trigger delay TD VM Single speed measurement The LDM301 carries out 25 single speed measurements from which the speed is calculated Page 62 LDM301 302 Manual Description of commands The duration of the measurement depends on the number of the set measurement values SA and the set measurement frequency MF For the output of the speed measurement data at least 9 valid distance measurements are necessary If a distance value is output additionally this value always denotes the first valid distance value that was used for the speed calculation VT Continuous speed measurement
48. nual Device description LDM302 with 3 7 mrad Standard Laser Transmitter Lens Receiving Lens Figure 5 Beam diagram for LDM302 The divergence of the laser is 3 7 mrad x 3 7 mrad square The receiver divergence is 6 3 mrad circle Table 7 Beam size for LDM302 Distance Om im 5m 10m 50m 100 m Transmitter 30 33 48 70 215 400 width mm Transmitter 30 33 7 48 70 215 400 heigth mm ASTECH GmbH Page 29 Device description LDM301 302 Manual 4 6 Functional Elements The casing consists of a robust corrosion resistant extrusion molded aluminum structure with a front cover plate and a back cover plate equally corrosion resistant On each lateral side and on the underside of the LDM 301 casing there are three support pads with mounting holes M4 for mechanical attachment of the LDM 301 see Figure 7 1 Front tube 8 11 mm rail 2 Transmitter optics 10 Status display 3 Receiver optics 11 Main connector M18 4 Front cover plate 12 Service screw 5 Casing 13 Support pads with M4 x 6 6 Back cover plate 14 optional connectors 7 Pilot Laser Profibus or SSI Figure 6 Functional Elements Page 30 ASTECH GmbH LDM301 302 Manual Device description 4 7 Mechanical Integration Requirements For integration of the LDM301 Laser Distance Meter three different versions of mechanical attachment are available 1 Attachment to a lateral surface For attachment to the lateral surfaces the LDM30
49. nvironment etc ASTECH GmbH Page 79 Malfunction and error messages LDM301 302 Manual 9 Malfunction and error messages 9 1 Malfunction Table 28 Malfunction Error No data via RS 232 or RS 422 Device error Ext Diagnosis 9 2 Error Codes Table 29 Error codes Code E02 E04 9 3 Error Status Table 30 Error Status Error status Red status LED of status display lights Cause Faulty interface configuration Hardware problems Cause No target Laser defect Cause Read error message via RS 232 or RS 422 interface Action for removal Check interface configuration Send LD301P for repair Contact technical support Action for removal Observe measurement distance reflectivity of the target is too low Send LDM301 for repair Contact technical support Action for removal Send LDM301 for repair Contact technical support Page 80 ASTECH GmbH LDM301 302 Manual Accessories Options 10 Accessories Options 10 1 RS 232 cable For parameterization an optional programming cable is available to link the LDM 301 with a PC COM port RS 232 The use of PC software LDMTool is recommended SUB D9F Figure 29 PC Interface cable with power supply Table 31 Connection of programming cable PC sided Nr SUB D9F Colour Name SUB D 9 F RS 232 PC COM code Shield Cable shield 3 brown TxD 2 white RxD 5 blue GND Table 32 Connection of programming cable LDM301 sid
50. o targets with good reflective properties As an alternative an LDM301 with 10 mrad can be used as this device does not imply any restrictions for distance measurement ASTECH GmbH Page 17 Operating conditions LDM301 302 Manual 3 4 Improperly use error sources The device may only be used when the safety advice described in chapter 0 is observed The non observance of the safety advice can lead to damages of the device or to injuries of the eyes To achieve correct measurement results avoid the following error sources Measurement against the sun or other intense light sources Measurement onto low reflective target surfaces in highly reflective environments Measurements onto highly reflective surfaces mirror Rapidly changing measurement conditions rapid distance changes Two or more LDM301 may not be frontal view because the devices interact To avoid false readings the devices must be successively raised Use the trigger generator TPG1 accessory or the trigger function according to item 2 in chapter 5 5 Interconnection of several LDM301 Operation and storage of the device under conditions that do not conform with the specifications Overheating The operating temperatures have to be observed The overheating of the device has to be avoided in any case When the operating temperatures are exceeded the device is not switched off automatically Persisting overheating of the device leads to a reduced lifetime
51. ons Operating temperature Storage temperature Air humidity Dimensions LxWxH Weight Protection degree EMC 40 C 60 C 40 C 70 C 15 90 136 mm x 57 mm x 104 mm Approx 800 g IP 67 IEC 61326 1 2005 Total output error for 20mA 0 15 temperature 25 C Page 26 ASTECH GmbH LDM301 302 Manual Device description 4 5 Laser divergence The LDM301 is available in two different versions with respect to the laser divergence LDM301 with 1 7 mrad Standard Laser Transmitter Lens Receiving Lens Figure 3 Beam diagram for LDM301 with 1 7 mrad The divergence of the laser is 1 7 mrad x 0 08 mrad rectangle The receiver divergence is 2 9 mrad circle Table 5 Beam size for LDM301 with 1 7 mrad Distance Om im 5m 10m 50m 100 m Transmitter 53 2 53 3 53 6 54 0 57 4 61 5 width mm Transmitter 18 7 20 4 27 0 35 4 102 0 185 4 heigth mm ASTECH GmbH Page 27 Device description LDM301 302 Manual LDM301 with 10 mrad Option Laser Transmitter Lens Receiving Lens Figure 4 Beam diagram for LDM301 with 10 mrad The divergence of the laser is 10 mrad x 0 5 mrad rectangle The receiver divergence is 14 3 mrad circle Table 6 Beam size for LDM301 with 10 mrad Distance Om im 5m 10m 50m 100 m Transmitter 15 5 15 8 16 9 18 4 29 8 44 1 width mm Transmitter 5 3 11 0 33 9 62 5 291 0 576 7 height mm Page 28 ASTECH GmbH LDM301 302 Ma
52. ree of protection IP of the device Sign informs that special guidelines had to be applied for device disposal x gt lt Pb ASTECH GmbH Page 7 General Information LDM301 302 Manual 1 General Information The laser distance measurement device LDM301 is developed for industrial applications It enables the non contact measurement of distances and speed with a precision down to the centimeter The device measures with short measurement time onto any diffusely reflecting target surface also without using a reflector Depending on the type two switching outputs and the following interfaces are available RS 232 RS 422 and analog output SSI or Profibus The device is easy to install and operate An LED display on the rear side of the device enables the user to monitor the device in operation The compact and rugged design the easy installation low current consumption adjustable switching outputs and the possibility to set user specific parameters are important features of the LDM 301 The features of the device enable a number of applications in industrial environment Process surveillance in steel and roller plants Fill level measurement Surveillance of object movements Positioning of cranes and loading facilities Measurement of inaccessible measurement areas e g in hollow spaces tubes and containers Position surveillance of vehicles and ships As standard the LDM301 is equipped with integrated hea
53. rer offers to take back the device after the end of the product life cycle and to dispose of the product in accordance with the effective environmental protection guidelines Please note that this service is subject to a charge ASTECH GmbH Page 15 Operating conditions LDM301 302 Manual 3 Operating conditions 3 1 Electrical installation conditions Use only a supply voltage of 10 V 30 V DC direct current voltage For using the heating direct current voltage of 24 V is recommended IN The limit values for the input voltage have to be observed Do not wire inputs as outputs All outputs are short circuit proof The housing is galvanically separated from the sensor electronics assembly The interference resistance at electrostatic discharge ESD is 4 kV according to EN 61326 1 Table 1 Electrical installation conditions Electrical installation conditions Supply voltage 10 V 30 V DC direct current voltage Power consumption lt 5 W without heating 11 5 W with heating 24 V 3 2 Operating and storage conditions Operating temperature 40 C 60 C Stroage temperature 40 C 70 C Air humidity 15 90 not condensing A The mentioned operating and storage conditions have to be observed When the operating temperatures exceed the permitted values the device will not be switched off automatically The continuous overheating of the device will reduce the lifetime of the laser diode 3
54. rocessing of monitored quantities such as filling level or for detection of objects Parameter settings are made via the serial interface The command to achieve this is Qlw_x_y_z HIGH Q1 Q2 LOW z HIGH z el where _ is equivalent to space 0x20 Value Description Specification w Switching 9999 99 threshold ne 9999 99 x Switching range x gt 0 x gt y y Hysteresis y20 Switching state z 00r1 LOW Figure 16 Switching behavior of digital outputs LOW 0 HIGH 1 U lt 1V U operating voltage 1 V ASTECH GmbH Page 39 Interface description LDM301 302 Manual weiss braun grun gelb grau rosa blau rot schwarz violett grau rosa S i A u ZE n m O a o gt rot blau Figure 17 Example of switching output wiring Page 40 ASTECH GmbH LDM301 302 Manual Interface description 5 4 QA Analog output The analog output enables the normed analog transmission of distance data across large distances using a two wire line The current of 4 mA to 20 mA impressed in the line is proportional to the measured distance within an adjustable distance interval Parameterization is done via the serial interface Properties of the analog output Measuring value output range 4 mA 20 mA Indication in case of an error 3 mA or 21 mA selectable via the parameter SE Resolution 16 bit DA
55. rol of the laser and the diagnostic data The LDM301P has the ID number OAA2 HEX Installation conditions The LDM301 can be connected to each Profibus DP structure The corresponding Profibus DP Master must be able to send a parameterization telegram The corresponding development tool usually development software must be able to support the display of the parameters in the device master file GSD Parameters entered via the serial port are overwritten by the master at start up by parameters of the field bus interface If the master does not send parameters the LDM301P starts with the stored parameters GSD File The GSD file has the name LDM301P2 GSD The files LDM301P dib and LDM301P bmp belong to the GSD file and serve for the display of the LDM301 in the projection tool The integration of the files is described in the documentation of the projecting tool Slave Address The Profibus slave address is adjustable subject to the other device in the range of O 125 The address is done by SSA command of the Profibus For information on how to change the slave address via the editing tool you should consult the special editing tool documentation Page 46 ASTECH GmbH LDM301 302 Manual Interface description On delivery the address is 4 alternatively a label with the given address exists The slave address is permanently stored in EEPROM and retained even after power failure If several slaves LDM301P are op
56. rrection The offset value is not transferred to the laser module but is directly handled in the PB assembly group Scaling factor 10 0 10 0 Up to 5 decimal places are processed Selection of the distance value in the event of an error The pilot laser can be set to On Off or Blinking Set the start and the end of the measurement window 0 send diagnosis data only in case of alarm 1 10000 send diagnosis data every n x 100ms Switching threshold for the output n in distance units transferred to the command Qn range for the switching outputs in distance units transferred to the command Qn hysteresis for the switching outputs in distance units transferred to the command Qn 0 or 1 for the switching outputs in the active range transferred to the command Qn Table 13 Profibus parameter Octet Bit 1 2 3 4 5 6 N Type Output byte station status Profibus default byte wd_fact_1 watch dog Profibus default byte wd_fact_2 Profibus default byte min_tsdr Profibus default word ident number Profibus default word slave diag Profibus default word slave diag Profibus default ASTECH GmbH Page 49 Interface description LDM301 302 Manual Octet 9 10 13 14 17 28 25 26 27 29 33 Se 41 45 49 53 55 Boa 61 65 69 28 32 36 40 A4 A8 52 54 56 60 64 68 70 73 74 77 78 81 82 85 Bit NOU BP WNR Oo
57. s exposed to humidity the temperature difference between the device and the environment may be 5K maximum AN It is necessary to observe the operating and storage conditions Use only a supply voltage of 10 V 30 V DC direct current voltage For using the heating direct current voltage of 24 V is recommended The limit values for the input voltage have to be observed Do not wire inputs as outputs All outputs are resistant to short circuits The housing is galvanically separated from the sensor electronics assembly The interference resistance at electrostatic discharge ESD is 4 kV according to EN 61326 1 Page 14 ASTECH GmbH LDM301 302 Manual Safety advice 2 4 Norms The device conforms to the following norms IEC 61326 1 2005 Electrical equipment for measurement control and laboratory use EMC requirements Part 1 General requirements IEC 61326 1 2005 German version EN 61326 1 2006 IEC 60825 1 2007 Safety of Laser products Part 1 equipment classification and requirements IEC 60825 1 2007 Laser Class 1 Measurement Laser Laser Class 2 Pilot Laser IEC 61010 1 2001 Safety requirements for electrical equipment for measurement control and laboratory use General requirements IEC 61010 1 2001 German version EN 61010 1 2001 2 5 Disposal For the disposal of the device special environmental protection E guidelines apply Do not dispose the device with the usual domestic refuse The manufactu
58. sed bolt the cables tightly Plug the Profibus or SSI connections and bolt them on tightly LDM301P or LDM3015 Switch on the supply voltage the status LED has to shine green Parameterize the LDM301 with the PC program LDMTool via RS 232 RS 422 Align the LDM301 towards a target use the sight pointer or the additional sight appliance on the 11 mm rails Activate pilot laser stop any distance measurement mode ESC Adjust to the target by using the visible laser pilot laser Fix the LDM301 ASTECH GmbH Page 55 Installation LDM301 302 Manual Before switching on the power supply make sure that all cable ends are protected against short circuits Connect cable terminals as required for the particular operating mode To prevent short circuits seal unused cable ends For starting up a PC with RS 232 or RS 422 data interface and a terminal program are required We recommend the Windows program LDMTool Version 4 8 or higher see Figure 17 Program LDMTool RS 232 to USB converter are available optionally LOMToo LOMSLLUMOS file Parameter Commands Options Help SES TP BRAC PPG Parameter Device Diagram Log Window Timing Serial Interface d002743 3 mm Analog Output Caladator Temna F cet Pe COM1 1152003 None1l None 0296 L Figure 25 Program LDMTool Page 56 ASTECH GmbH LDM301 302 Manual Description of commands 7 Description of commands 7 1 Overview
59. t Installation of LDM301 Overview of commands Standard deviation for speed measurement coconcoconcnnccononononononononns Description for hardware diagnosiS coccccoccnncnocononaonnnncnncnnannnnnnnos Pilot laser PLx x ValUB ooooococoocccccconccnnncnnnconononononononononononononononononns Spread of distance MEASUFEMENL ccccccccccecsessssssecececeesestseeeeeeees Error Mode SEX values fOr X cocccccccccccccccnnoconoconoconococononococononononononos Function of the switching outputs under different modes 73 Serial output format SDy parameter Y occccccnnonoccnnnononnnononannnanononos 75 Termination character s TEX parameter x 77 Malfunction O A Error Status Connection of programming cable PC sided o ccccccccononocncnncnnnno 81 Connection of programming cable LDM301 sided 81 Part WIM DEVS oie sciesiessstdevessuhoesbaceh can sanueesnsanendensancnasoscsseesteceesodesteuense 87 Page 6 ASTECH GmbH LDM301 302 Manual Used Symbols Sign warns against emitting visible and invisible laser radiation Sign warns against danger of electrical power and of electric shock Sign warns against danger Sign shows information for use in hazardous environments Sign indicates important information regarding device use of the device The sign shows protection class 3 protective extra low voltage Sign indicates deg
60. ting status display and a sight mechanism The alignment to the measurement objective is easy by the red laser dot of the pilot laser The modular construction of the device enables the easy upgrade with additional equipment or the customization for specific applications Page 8 ASTECH GmbH LDM301 302 Manual General Information The device operates on the basis of time of flight measurement Short laser pulses are transmitted The light pulse reflected from the target is detected by the receiver The distance can be determined by the time shift The measurement range depends on the reflectivity and the surface of the measuring target ASTECH GmbH Page 9 Safety advice LDM301 302 Manual 2 Safety advice 2 1 Basic safety advice Please read the safety and operating advice carefully and observe the advice when operating the device gt gt bb pp Danger laser radiation Do not open the LDM30x otherwise Laser radiation can be emitted that can cause eye injuries Please observe all information and guidelines for operating the Laser Danger electric shock The LDM30x may only be opened for repair purposes by the manufacturer If the device is opened arbitrarily without authorization all warranty claims will expire The operating and storage conditions have to be observed see chapter 3 The inobservance of this advice and the adverse use of the device can lead to injuries of the user or to damage of th
61. uency MF trigger delay level TD average value SA scale factor SF measure window MW distance offset OF error mode SE digital out 01 digital out Q2 analog out OA RS 232 422 baud rate BR RS 232 422 output format SD RS 232 422 output terminator TE SSI output format SC pilot laser PL autostart command AS heater threshold levels HE 2000hz 0 00msec 0 0 20 1 000000 1 000 300 000 0000 1 20 000 10 000 1 000 1 1 000 30 000 0 500 1 1 000 300 000 115200 dec 0 value 0 ODh OAh 0 bin 0 2 dt 4 10 Figure 27 Display of all parameters command PA Page 64 LDM301 302 Manual Description of commands HW Hardware diagnosis A device specific list of characteristics and measurement variables is output Explanation of the items in the hardware status Table 21 Description for hardware diagnosis Item Description TCB Temperature controller board TRE Temperature receiver VUV Supply voltage VDD Internal voltage digital 5 V VCC Internal voltage digital 3 V VTDC Control voltage timer measurement circuit VCP Detection threshold receiver signal VHV High voltage laser VPT Output voltage transmitter identification VREF Input voltage transmitter identification QCLK Deviation quartz frequency internal ASTECH GmbH Page 65 Description of commands LDM301 302 Manual 7 6 Setup Parameter The parameters are set via the serial interface The command is transferred
62. value resolution 1mm distance Measurement time for distance 100 ms Measurement range for speed 0 ms 100 ms Measurement time for speed 0 1s 0 5s Laser Laser for measurements Laser class 1 infrared non visible Laser beam divergence 1 7 mrad Wavelength 905 nm Pilot Laser Laser Class 2 red visible Wavelength 635 nm depends on the reflection properties of the target ambient light influence and atmospherically conditions natural diffusely reflecting surfaces under 10 m don t use low reflective materials dark black surface for target 1 Distance range 0 5 m 700m 1 ASTECH GmbH Page 25 Device description LDM301 302 Manual Electrical installation conditions Supply voltage Power consumption Interface Connections Interfaces Serial interfaces Switching output Analog output Trigger for device synchronization Operating modes 10 V 30 V DC lt 5 W without heating 11 5 W with heating at 24 V 1 x 12 pole Binder series 723 M18 RS 232 or optionally RS 422 9 6 kBaud 460 8 kBaud format 8N1 ASCII 2 x High Side switch load up to 0 2 A Permanent short circuit protected Adjustable window function 4 mA 20 mA 1 x Trigger IN OUT edge and delay adjustable trigger level 3 VDC 30 VDC Single measurement continuous measurement mean value external triggering adjustable near field suppression and window function Environmental and application conditi
63. vice for laser class 1 Measurement Laser A The measurement laser is a class 1 laser device based on the norm IEC 60825 1 2003 Safety of laser products Part 1 equipment classification and requirements The laser radiation of class 1 lasers does not imply any danger to the human eye any injury of the human eye can be excluded ASTECH GmbH Page 11 Safety advice LDM301 302 Manual Safety advice for laser class 2 Pilot Laser A The pilot laser is a class 2 laser device based on the norm IEC 60825 1 2007 Safety of laser products Part 1 equipment classification and requirements The Laser power is limited to maximum 1 mW The Laser radiation is visible A short term exposure duration up to 0 25 s is harmless to the eye Users are instructed by Laser warning sing see VERWEIS to do not stare into the beam They have to protect themselves by turn the head and or the closing the eyes and by avoid a long look into the beam The sensor can be used without any additional safety protection A Danger Laser radiation Class 2 do not stare into the Laser beam Do not look into the Laser beam with optical instruments Do not direct the Laser beam onto persons Page 12 ASTECH GmbH LDM301 302 Manual Safety advice Figure 1 Device warning sign i 9 Figure 2 Position of the device warning sign z 2 3 Advice for operating device The LDM30x should not be put into operation when optical
64. with the terminator Ox0D to the LDM301 If commands have only one parameter the parameter is inserted directly or separated by a blank space If commands have several parameters these parameters will be separated by a blank space 0x20 AS Auto start function The auto start function defines the behaviour of the LDM301 after a cold start After the start the LDM carries out the commands automatically and sends the data via the serial interface Query AS Set ASs Parameter value ID ID DM DT DF VM VT TP HW PA MF TD SA range s SF MW OF SE Q1 Q2 QA BR SD TE BB AB SC PL AS Standard DT PL Pilot Laser With the command PLx the behaviour x of the pilot laser is parametrized Query PL Set PLx Parameter value range x 0 1 2 3 Table 22 Pilot laser PLx x value Standard 0 Page 66 LDM301 302 Manual Description of commands Table 22 Pilot laser PLx x value Behaviour of the Pilot Laser Off On Blinking 2 Hz Blinking 5 Hz w N FP OX PR Reset to factory settings All parameters are reset to factory settings Except for the baud rate We do not recommend to use this command Afterwards the device must be programmed new auto start scaling analogue and output etc Parameter for firmware version 1 5 measure frequency MF trigger delay level mode TD 2000 max 2000 hz 0 00msec 0 0 average value SA 20 sole ACO SF e c

Manual EN V1.7 - ASTECH Angewandte Sensortechnik GmbH

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