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Related Manuals for ASTECH LDM41E
Summary of Contents for ASTECH LDM41E
- Page 1 Manual LDM41E and LDM42E Version 1.6...
- Page 2 Dear User, You are advised to carefully read this User Manual before powering on the LDM41E and LDM42E Laser distance measuring sensor for the first time. This is necessary to ensure that you will be able to utilize all the capabilities and features which your new acquisition provides.
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Page 3: Table Of Contents
LDM41E and LDM42E Manual Content Content General ....................... 6 Safety Instructions ..................8 General Safety Instructions ............... 8 Intended & Conforming Use ............. 8 Nonconforming use ................8 Laser Classification ................9 Electric Supply ................. 10 Important Operating Advice ............10 Technical Data .................. - Page 4 Content LDM41E and LDM42E Manual 8.13 SE – display/set error mode [0/1/2] ..........30 8.14 AC – display set ALARM center ............30 8.15 AH – display/set ALARM hysteresis ..........31 8.16 AW – display/set ALARM width ............31 8.17 HO –...
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Page 5: Content
Table 7 : Input voltages..................19 Table 8 : Output voltages .................. 19 Table 10 : Output format LDM41E and LDM42E ..........27 Table 11 : Examples of Scale factor ..............30 Table 12 : Meaning of SE .................. 30 Table 13 : Command list LDM41E and LDM42E.......... -
Page 6: General
LDM41E and LDM42E Manual General The LDM41E and LDM42E is a Laser sensor to measure distances from 0.1 m to more than 100 m with pinpoint accuracy. A given target can be clearly identified with the help of a red Laser sighting point. - Page 7 (LDM41E-h and LDM42E-h) e.g. 3M, self adhesive foil white non glossy or foil 3290 for longer distances Trigger function is not available for devices with internal heating (LDM41E-h and LDM42E-h) ASTECH GmbH...
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Page 8: Safety Instructions
Compliance with all specified operating conditions is necessary. Failure to observe advisory notes or nonconforming product usage may cause physical injury to the user or material damage to the LDM41E and LDM42E. Cable connectors must not be plugged or unplugged under voltage. -
Page 9: Laser Classification
Rapidly changing measuring conditions are likely to falsify the result of measurement Laser Classification The LDM41E and LDM42E are Class 2 laser product, ≤1 mW as stipulated in EN60825-1:2007, Class 2. Caution: There is Class 2 Laser radiation. Do not stare into beam! Figure 2 : Warning Sign Laser Radiation Class 2 The Laser power is limited to maximum 1 mW. -
Page 10: Electric Supply
The sensor can use without any additional safety protection. Electric Supply Use only 10 V to 30 V DC (direct voltage) for LDM41E and LDM42E operation. Use only the specially designated connector terminal for voltage supply. Specified signal levels must not be exceeded, in order to guarantee correct data communication. -
Page 11: Technical Data
+15 up to +30 °C dependent on target reflectance, stray light influences and atmospheric conditions Please use only 24 V DC For devices with heating (LDM41E-h and LDM42E-h) The heater is connected directly to the power supply. ASTECH GmbH... - Page 12 IP 65 (spatter water and dust protection) trigger function is not available for devices with internal heating (LDM41E-h and LDM42E-h) at 10 m distance the beam diameter is 6 mm, at a distance of 50 m it is 3 cm and at a distance of...
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Page 13: Mechanical Mounting Conditions
LDM41E and LDM42E Manual Mechanical Mounting Conditions Mechanical Mounting Conditions The casing consists of a rugged, corrosion-resistant extruded aluminum profile with front-side and rear-side covers also in corrosion-resistant design. Four mounting holes are provided in the base plate for mechanical attachment of the LDM41E-h and LDM42E-h. -
Page 14: Figure 4 : Offset Against Zero-Edge
LDM41E and LDM42E Manual Figure 4 : Offset against zero-edge The LDM41E and LDM42E’s zero-point is located 7 mm behind the outer surface of the front cover or 137 mm before the back cover outside face respectively. This zero-point has been introduced for constructional design reasons. -
Page 15: Electrical Connection
Binder), or compatible connectors, sealed against the casing in compliance with IP 65 requirements. This connector type guarantees optimised screening and a high IP level. The following connection plugs should be used: Table 2 : LDM41E and LDM42E terminals Quantity Connector Type 4-pin male cable connector... -
Page 16: Assignment Of Terminals
Trigger input 3 to 20 V (ground potential GND) Fast Ethernet The LDM41E and LDM42E has a terminal for circular plug-in connectors (series 715 D for Ethernet from Binder) conforming to the relevant standards. Table 4 : Pin assignment Fast Ethernet... -
Page 17: Table 5 : Pin Assignment Rs232
As a result, this interface should only be used for configuring the LDM41E and LDM42E. Please configure using the programming cable and the LDMTool program. -
Page 18: Shield And Grounding
Programming Cable Connection to a PC requires the following cable with SUB-D 9 F connectors. The TxD and RxD signals of the LDM41E and LDM42E and the PC connection are crossed. The colours apply to the optional programming cable. Table 6 : Pin assignment programming cable... -
Page 19: Limiting Values For Voltages
LDM41E and LDM42E Manual Limiting Values for Voltages Limiting Values for Voltages GND lines of the power supply and RS232 terminals are connected internally and form the ground potential for all of the limiting values indicated below. Input voltages: Table 7 : Input voltages... -
Page 20: Start Up
Caution: Do not use any retro reflectors! The alignment of the LDM41E and LDM42E is facilitated by a Laser beam that is visible and can easily be turned on at the PC (e.g. command DT starting the measurement and switch the Laser on, see 8.2). -
Page 21: Start Up With Ethernet
LDM41E and LDM42E Manual Start up Figure 7 : Program LDMTool Start up with Ethernet The LDM41E and LDM42E come with a default IP address and subnet mask: IP-Address: 192.168.0.51 Net mask: 255.255.0.0 Alternatively, there is a removable sticker with this information on the device. -
Page 22: Figure 8 : Program Ethertool
Use the program "EtherTool" by ASTECH and run "Search". Alternatively, start a telnet client (Windows Telnet, putty or other via TCP/IP port 23) and connecting you with specifies the IP of the LDM41E and LDM42E. Figure 8 : Program EtherTool After Telnet connection is established, you get by entering the "#"... -
Page 23: Commands And Parameter
Commands and Parameter General The LDM41E and LDM42E can be parameterized very easy with the PC. The PC must be equipped with a serial interface RS232 and/or RS232 according to the attached LDM41E and LDM42E. The use of USB to serially converters is also possible. - Page 24 Commands and Parameter LDM41E and LDM42E Manual Note: The LDM41PN and the LDM42PN are not equipped with an analogue current output. Therefore the configuration commands for the analogue output cannot be used for the LDM41-42PN. However, they do ensure compatibility with the LDM41A andLDM42A (without Profinet).
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Page 25: Dt - Distance Tracking
DT mode can be chosen for distance measurement of different kinds of surfaces (varying reflectance). In this type of distance tracking mode, the LDM41E and LDM42E uses internal algorithms to continuously evaluate the quality of the Laser radiation signal that is coming back. This may cause longer measuring times in the case of poor reflectance or sudden jumps in distance. -
Page 26: Dx - Distance Tracking With Target Board (50 Hz)
DF mode allows a measurement that is triggered by an external trigger pulse. Initially, after selecting this mode, the operator does not receive any response. As soon as the trigger pulse has been detected, the LDM41E and LDM42E will send data and switches to digital and/or analog output. -
Page 27: Dm - Distance Measurement
DM mode triggers a single measurement (single shot) TP – internal temperature [°C] TP queries the value of the inner LDM41E and LDM42E temperature. Note: In tracking mode, the inner temperature may exceed the surrounding temperature level by as much as 10 K. -
Page 28: St - Display/Set Measure Time [0
Measuring time is directly conditional on the selected measuring mode. As a general rule, one may say: the poorer the reflectance of the surface of a particular target, the more time the LDM41E and LDM42E will require to determine the distance with specified accuracy. For example, if error message E15 is output because of poor reflectance and insufficient time to measure, this latter setting must be increased. -
Page 29: Sf - Display/Set Scale Factor
An exception there from is zero-value. In this case, the LDM41E and LDM42E automatically picks the smallest possible time value for measurement! The LDM41E and LDM42E comes factory-set with ST = 0. -
Page 30: Se - Display/Set Error Mode [0/1/2]
SE (error mode) allows you to configure the behavior of the digital switching output (alarm) and/or the analog output following an error message (E15, E16, E17). Depending on the particular LDM41E and LDM42E application environment, error messages have to be handled in different ways. -
Page 31: Ah - Display/Set Alarm Hysteresis
LDM41E and LDM42E Manual Commands and Parameter AC must be selected in keeping with the currently set SF scale factor (see 9.4 Digital Switching Output (Alarm)). 8.15 AH – display/set ALARM hysteresis AH allows you to make parameter settings for the switching hysteresis at the beginning and the end point of the active range of the switching output. -
Page 32: Hf - Display/Set Temperature For Heating Off 17
Commands and Parameter LDM41E and LDM42E Manual 8.18 HF – display/set Temperature for heating off HF displays/sets the temperature value at which the internal heating is switched off. The values can be varied between -40°C and 70°C. Standard setting is 12°C. -
Page 33: Tdx Y - Display/Set Trigger Delay Trigger Level
LDM41E and LDM42E Manual Commands and Parameter 8.20 TDx y – display/set trigger delay trigger level TD is only intended for the configuration of the remote trigger input (see 8.6 DF – distance measurement with external trigger). TD consists of two sub parameters, of the actual delay value, i.e. the delay time, and the trigger level. - Page 34 Commands and Parameter LDM41E and LDM42E Manual 1... Trigger function turned on 0 ... measurement is triggered on trigger line at L-level (HIGH → LOW slope) 1 ... measurement is triggered on trigger line at H-level (LOW → HIGH slope) Standard setting is TM0 1.
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Page 35: Br - Display/Set Baud Rate [2400
Possible entries are those delivering a measured value on the output side, an ID command or the command for turning the Laser on (LO). For example, if ASDT has been parameterized, the LDM41E and LDM42E will begin with distance tracking on turning on power. -
Page 36: Lo - Laser On
LO turns the Laser on. This function can be used for orientation or functional testing of the LDM41E and LDM42E. After the command LO it’s necessary to send LF! Don’t use LO because this. Please use instead of LO the command DT to turn the Laser on. -
Page 37: Interface Connection
LDM42E realized Fast Ethernet with 100 MBit / s. The data is transmitted using Telnet (port 23). This must be established with a Telnet client connects to the Telnet server in the LDM41E and LDM42E. The program EtherTool provides an integrated telnet client. - Page 38 (port 80). Only one browser can assess to the HTML page at the same time. Inputs are not available! Figure 12 : LDM41E Sensor Page With the Internet Explorer select at first under "Tools | Security | Internet Options" the option "Local Intranet"...
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Page 39: Serial Interface Rs232
Therefore, it should only be used for LDM41E and LDM42E configuration. The commands of the serial interface are described in chapter 8 starting page 23. -
Page 40: Digital Switching Output (Alarm)
Interface Connection LDM41E and LDM42E Manual dec+sig: 004.996_000005<CR><LF> (bad signal quality) dec+sig: 004.996_000985<CR><LF> (good signal quality) Distance = 4,996 m, SF10 dec: 049.960<CR><LF> hex: _00C328<CR><LF> (= 49960 = 4996 mm × SF10) dec+sig: 049.960_000005<CR><LF> Error case dec/hex: E15<CR><LF> (see page 45, chapoter 11, Error Codes) - Page 41 LDM41E and LDM42E Manual Interface Connection In the case of a negative AH, the output switching pattern will be inverse. Figure 13 : Digital switching output behavior with positive and negative hysteresis Example: A moving object is assumed to be monitored within a window of 10 m to 11 m with a hysteresis of 0.2 m.
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Page 42: Trigger Input
The distance measurement will always be started with a delay of 5 ms in addition with the programmed trigger delay time. Having done this, the LDM41E and LDM42E has to be switched to trigger mode (see 8.6, DF – distance measurement with external trigger). -
Page 43: List Of Commands
LDM41E and LDM42E Manual List of Commands List of Commands Table 12 : Command list LDM41E and LDM42E Command Description Starts distance tracking Starts distance tracking (< 7 m) Starts distance tracking on white target at 10 Hz Starts distance tracking on white target at 50 Hz (only LDM... - Page 44 List of Commands LDM41E and LDM42E Manual Command Description Turns Laser on (do not use, please use DT) Turns Laser off Displays all parameter values Resets all parameters to standard values (don’t use) Page 44 ASTECH GmbH...
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Page 45: Error Codes
LDM41E and LDM42E Manual Error Codes Error Codes Table 13 : Error codes Code Description Action Reflexes are too weak, or distance Use white target board from LDM (front edge) to target is increase distance to target less than 0.1 m... -
Page 46: Eg Declaration Of Conformity
EG Declaration of Conformity In accordance with the Directive of Electromagnetic Compatibility 2004/108/EG The company ASTECH Angewandte Sensortechnik GmbH in Schonenfahrerstr. 5, 18057 Rostock / Germany herewith declare, represented by the signatory, that the following designated product Laser Distance Measurement Sensor... -
Page 47: Part Numbers
PT4x-AIR, Protection tube for pressure air for LDM4x-Series 11-0006-00 ASTECH USB Stick (Documentation and Software) 16-2004-01 Printed Manual LDM41E and LDM42E, A5, DE 16-2004-02 Printed Manual LDM41E and LDM42E, A5, EN 17-2000-00 License number for PC-Software LDMTOOL for LDM3x und... - Page 48 Notice LDM41E and LDM42E Manual Page 48 ASTECH GmbH...
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