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Parameter setup and measuring operation  

 

LDM52 OEM, Release 003, Revision 000 

21 

 

6.4.4

 

MCT – Output/ modification of the operating mode when starting a measure-

ment using the display 

When starting a continuous measurement using an external display, you need to define if the 
LDM52 OEM should measure based on the operating mode DT or CT. 
The operating mode is selected via the command MCT. 
When starting a measurement using the display, the predefined operating mode will be applied 
as a rule. 
When a measurement is started using a communication program or PLC, the command DT or CT 
will determine the type of measurement. 
 

Query: 

MCT 

Set: 

MCTx 

Range of parameter x: 

0 (DT), 1 (CT) 

Standard: 

0 

 

6.4.5

 

MF – Measuring frequency 

MF parameterizes the number x of the measured value outputs per second. 
When a value x outside of the measurement range is entered, the lowest or highest permissible 
MF value will automatically be set. 
 

Entered value < x 

→

 MF 0.0 

Entered value > x 

→

 MF 100.0 

 

MF 0 =  Automatic measurement. The output frequency ranges between 0.3 Hz and 10 Hz in 

most cases. The maximum measuring time will be 6 sec. 
Essential factors concerning the measurement period are, among others, the reflectivity 
of the target surface and the environmental conditions (e.g. light, fog, rain). 

 

 
Output:  Measurement frequency [MF]: 0.0 
 

 

 
The measuring period will be longer when an average value SA ≠ 1 is set! 

Query: 

MF 

Set: 

MFx 

Range of parameter x: 

0.0 …100.0 (Hz), resolution: 0.1 

Standard: 

0 

Содержание 012890-400-22

Страница 1: ......

Страница 2: ...OPTICAL SYSTEMS I LASERS MATERIAL PROCESSING I INDUSTRIAL METROLOGY I TRAFFIC SOLUTIONS I DEFENSE CIVIL SYSTEMS Laser Measuring Module LDM52_OEM Operating Manual ...

Страница 3: ......

Страница 4: ...is manual may be reproduced in any form photograph photocopy microfilm or any other procedure without the prior written permission of JENOPTIK Advanced Systems GmbH nor may contents be processed reproduced or distributed using electronic systems This operating manual was produced with the appropriate care No liability will be accepted for dam age resulting from the non observance of the informatio...

Страница 5: ......

Страница 6: ... Mechanical installation 12 4 3 Device cable connector pin assignment 13 4 4 Laser beam image 14 5 INSTALLATION AND COMMISSIONING 15 5 1 Commissioning 15 5 2 Mechanical installation conditions 15 6 PARAMETER SETUP AND MEASURING OPERATION 16 6 1 General information 16 6 2 Measurement involving moving targets 17 6 3 Identification 17 6 3 1 ID recognition 17 6 3 2 ID Online help 17 6 4 Status 19 6 4 ...

Страница 7: ...4 18 TE Terminator 31 6 4 19 TP Internal temperature 32 6 4 20 Additional commands 33 6 5 Operating modes 34 6 5 1 DM Individual distance measurement 34 6 5 2 DT Continuous distance measurement distance tracking 34 6 5 3 CT Continuous tracking 36 6 6 Q1 Q2 Q3 Switching output 38 6 7 QA Analog output 40 6 8 TRI TRO Trigger 42 6 8 1 Trigger function 42 6 8 2 TRI Trigger input 43 6 8 3 TRO Trigger ou...

Страница 8: ...ection guidelines must be observed when disposing of the device 1 3 General information The laser distance meters of the LDM51 series have been designed for application in industrial facilities Within the measuring range of 15 cm to 200 m the sensors work with a high accuracy of up to 1 mm and at a variably adjustable measuring frequency of maximally 100 Hz Due to the excellent optical measuring p...

Страница 9: ...ctors may not be plugged or unplugged when voltage is applied All installa tion 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 The device is not shatter proof Do not let the device fall onto the ground and avoid any agita...

Страница 10: ... 2 4 Cleaning and maintenance The LDM52 OEM does not require any maintenance To ensure trouble free measurements the optical surfaces through which the laser beam exits and enters must be free of deposits Dust can be removed using an air brush In case of dirt that is hard to remove please contact the manufacturer The device must not be cleaned using solvents or mechanical tools Mechanical or elect...

Страница 11: ...emove any labels and type plates Repair work must not be performed by the user In case of questions or doubt the man ufacturer is to be consulted For contact data see section 2 5 In order to obtain correct measuring values the following advice is to be observed 1 Measurements against the sun or onto surfaces with low reflectivity in very bright environments can result in faulty measurements 2 Meas...

Страница 12: ... the eyelid clos ing reflex The eyelid closing reflex can be affected by pharmaceuticals alcohol and drugs This device may be used without any additional safety pre cautions when the following advice is observed Do not look directly into the laser beam Do not look at the laser beam using optical instru ments Do not point the laser beam at other people Type plate The type plate shown is an example ...

Страница 13: ...ecial 300x300 012890 003 28 300 mm x 300 mm measurements from as low as 0 15 m 4 2 Mechanical installation The LDM52 OEM can be screwed on using 4 pieces fastening screws M2 5 length to be chosen depending on the counter piece Connector Samtec The zero point for measurement is identical with the housing front face When the LDM52 OEM in a standard housing is used outdoors under extreme environmenta...

Страница 14: ... GND Ground 10 Q3 Switching output Q3 level 3 3V CMOS 11 GND Ground 12 TRIG Triggerinput and output level 3 3V CMOS 13 GND Ground 14 QA Analog output 3 21mA load impedance 500Ω 15 NBOOT Boot input low active 16 HEIZ_EN Controller output for heater high active level 3 3V CMOS Figure 2 Connector pin configuration Related connector female inclusive flat cable FFSD 08 D 06 00 01 N Samtec Inverse polar...

Страница 15: ...he exit lens measures 4 mm The table below shows the size of the laser spot in dependence on the distance The laser spot has an elliptical shape Distance Laser spot width Laser spot height 1 m 5 mm 5 mm 5 m 3 mm 3 mm 10 m 4 mm 5 mm 50 m 6 mm 7 mm 100 m 26 mm 34 mm 200 m 52 mm 68 mm The above mentioned laser spot holds approx 50 of the entire laser energy An aura with less energy forms around that ...

Страница 16: ...FSD 08 D 06 00 01 N Samtec Where the LDM52 OEM is taken into operation for the first time we recommend carrying through the configuration steps at a laboratory or office The device can be configured using a communication program For example the program HyperTerminal included in Win32 operating systems or any other communication program can be used In order to parameterize the device using a commun...

Страница 17: ...ables are described with the individual parameters Several variables are separated by spaces 0x20 Starting a measurement operating modes Input COMMAND ENTER Stopping a measurement ESC ESC 0x1B Distances are always entered in 0 1 mm 100 µm The scale factor SF has no influence on the input parameters Example Input 3 20 m 32000 The output values shown in the manual are examples They may vary dependin...

Страница 18: ...nd by displaying the manufacturer s data in the following order Device type serial number manufacturer s part number firmware version time stamp Query ID Response example Lumos 175008 012890 001 22 V5 17 0328 17 08 14 10 09 6 3 2 ID Online help By entering the command ID the user will obtain an overview of all available operations and parameters described in the following sections Query ID Respons...

Страница 19: ... trigger TRI TRO u u Prints Changes the parameterization of the output trigger TRO BR u Prints Changes the baudrate of the serial port Co domain 1200 2400 4800 9600 14400 19200 28800 38400 56000 57600 115200 128000 230400 256000 SB f Prints Changes the stopbits of the serial port Co domain 0 5 1 0 1 5 2 0 AS u Prints Changes the autostart commands Co domain 1 12 TE u Prints Changes the terminator ...

Страница 20: ...tage to the point where the first measured value is put out Parameter x see table below Value x Command Meaning 1 ID Output of device identification 2 ID Output of command list 3 TP Output of internal device temperature 4 DM Start of individual measurement 5 DT Start of continuous measurement 6 CT Start of quick continuous measurement Following parameters are usable if pin 16 HEIZ_EN controller ou...

Страница 21: ...adjustment The parameter HE defines the switching thresholds for switching an external heating element on and off The command is enabled only where the device is actually equipped with a heating element Query HE Set HEx y Range of parameter x Switching on heating 40 40 integer Range of parameter y Switching off heating 40 40 integer Standard HE4 10 For switching the heating on or off the internal ...

Страница 22: ...uery MCT Set MCTx Range of parameter x 0 DT 1 CT Standard 0 6 4 5 MF Measuring frequency MF parameterizes the number x of the measured value outputs per second When a value x outside of the measurement range is entered the lowest or highest permissible MF value will automatically be set Entered value x MF 0 0 Entered value x MF 100 0 MF 0 Automatic measurement The output frequency ranges between 0...

Страница 23: ...ll be put out For example the measurement window can be used to Eliminate interfering objects before or behind a measurement range Define a measurement range If there is no target object within the defined measurement window an error message will be generated cyclically e1207 A target before or behind the measurement window is recognized e1203 Target with unsuitable reflectivity Query MW Set MWx y...

Страница 24: ...x that is added to the measured value It is entered in 0 1 mm Query OF Set OFx Range of parameter x 5000000 5000000 Standard 0 Output Offset in mm 10 OF 0 The LDM52 OEM does not check the set offset for plausibility The user is responsible for correct parameterization The offset can be set by a measurement command SO see chapter 6 4 16 ...

Страница 25: ...00 Offset in mm 10 OF 0 Parametrization of switching output Q1 Q1 0 1000000 2500 0 Parametrization of switching output Q2 Q2 0 1000000 2500 0 Parametrization of switching output Q3 Q3 0 1000000 2500 0 Parametrization of the analog switching output QA QA 0 1000000 Unit for the distances MUN mm Trigger input TRI 0 0 Trigger output TRO 0 0 Autostart commands AS DT Output format SD 0 0 0 0 Terminator ...

Страница 26: ...quency MF 0 0 Minimum distance from target MW 5000000 Maximum distance from target MW 5000000 Offset in mm 10 OF 0 Parametrization of switching output Q1 Q1 0 1000000 2500 0 Parametrization of switching output Q2 Q2 0 1000000 2500 0 Parametrization of switching output Q3 Q3 0 1000000 2500 0 Parametrization of the analog switching output QA QA 0 1000000 Unit for the distances MUN mm Trigger input T...

Страница 27: ...f the measured values can be reduced by determining average values SA 1 SA σSA Spread after average determination including several distance measurements σ1 Spread of individual measured values 1 mm SA Average value Example values of measurements involving a target with 80 reflectivity and a maximum distance of 30 m Measuring frequency MF Hz Average value SA Output frequency Hz Spread in mm 20 1 2...

Страница 28: ... z 0 or 1 Standard 0 0 0 0 Output SD 0 0 0 0 Separator in correspondence with parameter TE Parameters for data format SD Parameter w Output format Separators between the values Unit of measure SF 0 MUN x Example SF 0 MUN mm 0 decimal 1 separator unit d002 925 4 mm 2925 4 mm 1 decimal none none d002925 4 2925 4 mm 2 hexadecimal floating point format IEEE 754 none none h4536E9EC 2926 6 mm 3 hexadeci...

Страница 29: ... 0 always 0 Measurement data of each Byte Bit 6 Bit 0 Coding Two s complement Signal 2 Byte MSB Bit 15 MSB of Byte 1 and 0 always 0 Measurement data of each Byte Bit 6 Bit 0 no sign bit maximum value 16383 14 Bit data Temperature 2 Byte MSB Bit 15 Sign bit Bit 14 MSB of Byte 1 and 0 always 0 Measurement data of each Byte Bit 6 Bit 0 Binary format of switching outputs Q1 Q2 Q3 1 Byte MSB Bit 7 alwa...

Страница 30: ... measurements as well was the condition upon execution of an individual distance measurement Query SE Set SEx Range of parameter x 0 1 or 2 Standard 1 x Q1 Q2 Q3 QA SSI z 0 z 1 24 bit 25 bit 0 Last value Last value Last value Last value MSB High 1 High Low 3 mA 000000 MSB High 2 Low High 21 mA 999999 MSB High Output in CMOS level low 0 U 0 8 V high 1 U 2 0 V The LDM52 OEM does not check the set er...

Страница 31: ...ective At SF 0 the unit defined by MUN becomes effective Example of the data output Scale factor SF 0 000 SF 0 1 2 10 Distance 1 23 m 001230 0 mm 001230 0 002460 0 00012300 6 4 16 SO Set Offset With the parameter SO a single distance measurement is carried out and set a OF negative offset SO can only be executed in this way it is not a parameter in the strict sense SO is used for the zero adjustme...

Страница 32: ...ge of parameter x 1 5 Standard 1 Output Separator SP 0x2C Value x Symbol ASCII 1 Comma 0x2C 2 Semicolon 0x3B 3 Space 0x20 4 Slash 0x2F 5 Tabulator 0x09 6 4 18 TE Terminator TE is used to set the terminator for the output of measured values in the ASCII format also see command SD Query TE Set TEnn Range of parameter nn 1 10 Standard 1 Example Input TE 1 Output Terminator TE 0x0D0A ...

Страница 33: ...nternal device temperature in C The internal temperature is about 10 kelvins higher than the ambient temperature When the internal temperature of the laser unit is 75 C the laser will be switched off Warning w1906 will be generated in a cycle of 10 sec After the cooling of LDM52 OEM and reaching of an internal temperature of 70 C the inter rupted measurement starts automatically depends on the set...

Страница 34: ...n LF Switches off the laser diode LN Switches on the laser diode SDT or ESC Taste Deactivates the continuous measurement mode SH Switches off the heating until restart available only in devices that are equipped with a heating element TP Output of device temperature DR Executes a restart does not reset the parameters no PR ...

Страница 35: ...imally 1 x seconds to reliably determine the distance to a static during the measurement target object 6 5 2 DT Continuous distance measurement distance tracking The LDM52 OEM performs a continuous measurement The measurement can be interrupted by a command ESC Escape 0x1B SDT 0x53 0x44 0x54 The output frequency of the measured values depends on the selected parameters MF and SA The DT mode works ...

Страница 36: ...on The maximum measuring time is 6 sec 2 Where a measured value output is not needed a lower frequency can be set via the parame ter MF While this parameter influences the output frequency it has no impact on the inter nal measuring frequency The output frequency can also be reduced by using the average determination function For example if an average determination covering 5 measured values SA 5 ...

Страница 37: ...ages If the output frequency is over 20 Hz the fault rate will increase significantly w1910 Generating a measured value within the predefined period of time was impos sible laser searches for suitable parameterization after distance jump surface change MF too high e1201 e1203 No laser reflex received unsuitable poorly reflecting surface Reduce the value of the measuring frequency MF e1206 Target s...

Страница 38: ...ay light output frequency and enviromen tal conditions Operation Mode CT Target Measu ring fre quency Measuring range Accuracy Repealibility Standard de viation white matt reflectivity approx 80 variabel 15 cm 100 m 2 5 mm 1 0 mm 20 Hz 15 cm 40 m 2 1 mm 1 0mm 50 Hz 15 cm 35 m 2 3 mm 1 2 mm 100 Hz 15 cm 30 m 3 9 mm 3 9 mm black matt reflectivity approx 6 variabel 15 cm 85 m 2 7 mm 1 3 mm 20 Hz 20 c...

Страница 39: ...ion is done via the serial interface A load resistance of 150 ohms must be switched against GNDpower at the switching output It is essential that the load current of 0 2 A is not exceeded The switching outputs work with CMOS level low 0 U 0 8 V high 1 U 2 0 V Typical resistance 1 kohm against GNDpower not against GNDsignal Q1 Q2 Q3 parameterizes the behavior of the switching outputs Parameterizati...

Страница 40: ...ce 32 bits integer x Switching range in 0 1 mm a range of x µm from w 32 bits integer y Switching hysteresis in 0 1 mm length of the tolerance range 32 bits integer y 0 z Switching status z 0 or 1 Query Q1 or Q2 or Q3 Set Q1w x y z or Q2w x y z or Q3w x y z Standard 0 100000 2500 1 corresponds to 0 m 10 m 25 cm 1 The LDM52 OEM does not check the settings of Q1 Q2 and or Q3 for plausibility ...

Страница 41: ...ed value selectable via the parameter SE Resolution 12 bit D A converter Where current voltage is to be converted a load resistance of 100 ohms R 500 ohms 0 5 W is to be switched between current output QA and GND Capacitive load 10 nF Operating voltage 12 The lower and upper distance value limit has to be defined for the analog output Lower limit x 4 mA Upper limit y 20 mA Query QA Set QAx y Range...

Страница 42: ...n mA is calculated as follows x y mA x y x Dist mA mA QA 16 4 Dist measuring distance Example 2 A measuring range from 1 m up to 15 m shall be specified 15 m should be the lowest current x 15 m 4 mA y 1 m 20 mA Value Description Specification x Lower limit x y y Upper limit y x Input of parameter QA in 0 1 mm QA150000 10000 The value of the output current in mA is calculated as follows x y mA y x ...

Страница 43: ...ameterized with TRO The frequency of the trigger output signal is determined by the output frequency of LUMOS When using the trigger function the output frequency has to be 1 Hz in maximum SA 1 set MF 1 Hz SA 1 set MF SA x 1 Hz Differences between trigger input and trigger output Important is the parameter y of TRI and TRO TRI y 0 TRO y 0 Trigger input The measurement starts after an external trig...

Страница 44: ...msec Query TRI Set TRI x y Value range parameter x 0 1 2 Value range parameter y 0 to max 60 000 msec equal to 1 minute active from 1 msec upward disabled 0 msec Standard 0 0 Output Trigger input TRI 0 0 Maximum frequency of external trigger signal 1 Hz If the trigger frequency is too high no measurement value can be determined The output is E1203 The trigger frequency must be reduced Parameter MF...

Страница 45: ...to HIGH 1 falling edge from HIGH to LOW 2 every edge y delay parameterized the time delay up to the measurement in milliseconds msec Query TRO Set TRO x y Value range parameter x 0 1 2 Value range parameter y 0 to max 60 000 msec equal to 1 minute active from 1 msec upward disabled 0 msec Standard 0 0 Output Trigger output TRO 0 0 Voltage levels for trigger signals OUT load resistance 30 kOhm Low ...

Страница 46: ...f figures is the dot 0x2E The terminator of a command sending command is the enter key 0x0D 0x0A or Car riage Return 0x0D or Line Feed 0x0A Where parameters have several values they are separated by a space 0x20 The response to commands with parameters is the respective command including the pa rameters The response to commands without parameters is the respective command including the current par...

Страница 47: ...cation program to parameterize the LDM52 OEM Start HyperTerminal via the following menu path Start Programs Accessories Communication HyperTerminal Enter the name of the new connection in the dialog box You can select any name Confirm with OK Select the serial COM interface in the sec ond dialog box Upon confirming with OK a third dialog box will appear where the parameter set tings for the curren...

Страница 48: ...d with OK the terminal window will open The status indication in the left bottom corner reads Connected when the pre conditions for communica tion have been set correctly As soon as the LDM52 OEM is ready for operation power supply connection with PC the commands can be entered e g ID A command just entered will be displayed only when the Local echo function has been acti vated The function can be...

Страница 49: ... communication software 48 LDM52 OEM Release 003 Revision 000 File Properties Settings Inpu translation ASCII configuration Please note Do not tick the check box Sent lines end with line feed End the session with File Quit ...

Страница 50: ...d if the connection should really be termi nated This question must be responded to by pressing the Yes button If the current HyperTerminal session has not been saved yet a small window will appear where you are asked if the session should be saved Confirm with Yes HyperTerminal will not have to be configured again upon restart ...

Страница 51: ... measuring module Restart system e1206 Target too bright too much back light check limit ambient light e1207 Target outside of the measurement window MW no action or change MW setup e1208 Incorrect measurement parameterization check setup e1209 Hardware error measuring module contact service send LDM52 OEM to supplier e1210 Current of laser is over the limit laser stops work Restart of measurement...

Страница 52: ...m Repeatability 0 6 mm Resolution of measured values 0 1 mm Measuring period minimum 10 ms Laser Laser classification Laser class 2 EN 60825 1 2014 Wavelength 655 nm red Divergence 0 2 mrad Laser spot in 10 m 4 mm x 5 mm Electric connection conditions Supply voltage 5 0 5 V DC Power consumption 2 5 W Interface connections Connections on device 16 pin connector male FH12 10S 0 5SH 55 Serial interfa...

Страница 53: ...mperature of LDM52 OEM 10 C 60 C Storage temperature 40 C 70 C Humidity 15 60 non condensing Dimensions 50 mm x 35 mm x 27 mm LxWxH Weight approx 70 g 1 dependent on target reflectivity stray light measurement frequency and environmental condi tions in addition to distance and operation mode see chapter 6 5 ...

Страница 54: ...User Notes Nachfolgende Absätze rote Absatzendemarken nicht löschen im Rahmen verstecken A B BI HA hy T Ü X Z ...

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