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Summary of Contents for ASTECH LDM41PN
- Page 1 Manual LDM41PN and LDM42PN Version 1.0...
- Page 2 Dear User, You are advised to carefully read this User Manual before powering on the LDM41PN and LDM42PN 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
LDM41PN and LDM42PN 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 LDM41PN and LDM42PN Manual 8.12 SF – display/set scale factor ............28 8.13 SE – display/set error mode [0/1/2] ..........29 8.14 AC – display set ALARM center ............29 8.15 AH – display/set ALARM hysterese ..........30 8.16 AW –...
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Page 5: Content
Table 6 : Pin assignment programming cable ........... 18 Table 7 : Input voltages..................19 Table 8 : Output voltages .................. 19 Table 9 : Command list LDM41PN and LDM42PN ..........22 Table 10 : Output format .................. 26 Table 11 : Examples of scale factor ..............29 Table 12 : Meaning of SE .................. -
Page 6: General
LDM41PN and LDM42PN Manual General The LDM41PN and LDM42PN are Laser sensors 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 Option for remote triggering of a measurement from an external trigger device. Large range of accessories available inactive internal heating for devices with internal heating (LDM41PN-h and LDM42PN-h) e.g. 3M, self adhesive foil white non glossy or foil 3290 for longer distances 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 LDM41PN and LDM42PN. 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 LDM41PN and LDM42PN is a 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
Do not direct the Laser beam onto persons. The sensor can use without any additional safety protection. Electric Supply Use only 10 V to 30 V DC (direct voltage) for LDM41PN and LDM42PN operation. Use only the specially designated connector terminal for voltage supply. -
Page 11: Technical Data
+15 up to +30 °C dependent on target reflectance, stray light influences and atmospheric conditions Please use only 24V DC For devices with heating (LDM41PN-h and LDM42PN-h) The heater is connected directly to the power supply. ASTECH GmbH... - Page 12 Technical Data LDM41PN and LDM42PN Manual Profinet interface Profinet, Device ID: 3625, Device Name: ldm4x-pn 13 Byte IN, 1 Byte OUT Data interface RS232, baud rate 9600 (2400..38400), ASCII, Format 8N1 (fix), receive path is deactivated after connecting to the Profinet master! Digital switching output „high-side-switch“,...
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Page 13: Mounting
Mounting The casing consists of a rugged, corrosion-resistant extruded aluminium profile with front-side and rear-side covers also of corrosion-resistant design. Four mounting holes are provided in the base plate for mounting the LDM41PN and LDM42PN. Figure 3 : Mounting drawing To protect the range finder’s optical surfaces from dust, physical contact and impacts, etc., a protection tube has been... - Page 14 (standard 2 m, optionally 5 or 10 m). Figure 4 : Offset against zero-edge The LDM41PN and LDM42PN’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.
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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 : LDM41PN and LDM42PN terminals Quantity Connector Type 4-pin male cable connector... -
Page 16: Assignment Of Terminals
Trigger input 3 to 24 V (ground potential GND) Profinet The LDM41PN and LDM42PN has two terminals (input and output) for circular plug-in connectors (series 715 B for Profinet from Binder) conforming to the relevant standards. Table 4 : Pin assignment Profinet... -
Page 17: Programming Cable
Programming Cable Connection to a PC requires the following cable with SUB-D 9 F connectors. The TxD and RxD signals of the LDM41PN and LDM42PN and the PC connection are crossed. The colours apply to the optional programming cable. ASTECH GmbH... -
Page 18: Shield And Grounding
EMC problems (no correct measurement function or switching the gauge off or on is necessary). If no potential equalization is possible, then mount the LDM41PN and LDM42PN isolated from the carrier base (use nylon screws and washers). -
Page 19: Limiting Values For Voltages
VCC – 2 V Alarm Level depending on VCC Limiting values of voltages, loads and logical levels comply with relevant RS232 and Profinet standards. Trigger function is not available for devices with internal heating (LDM41PN-h and LDM42PN-h) ASTECH GmbH... -
Page 20: Start Up
We recommend the use of the following programme: LDMTOOL (Version 4.5 or higher). When turning on the LDM41PN and LDM42PN, it must be properly installed at the designated operation site, aimed at the target, and kept in a stable position. -
Page 21: Parameters And Control Via Rs232
LDM41PN and LDM42PN Manual Parameters and Control via RS232 General It is easy to configure the LDM41PN and LDM42PN by using a PC, as it provides a wide range of operating functions. Configuration should take place prior to connecting to the Profinet. - Page 22 LDM42A (without Profinet). Prior to commencing measurements, desired parameter settings can be entered via a smart selection procedure, so as to adapt the LDM41PN and LDM42PN in an optimal manner to specific environments and measuring tasks. Such settings will be stored when turning off the LDM41PN and LDM42PN.
- Page 23 Turns Laser on Turns Laser off Displays all parameter values Resets all parameters to standard values (don't use) Trigger function is not available for devices with internal heating (LDM41PN-h and LDM-42PN-h) Only for devices with internal heating (LDM41PN-h and LDM42PN-h) ASTECH GmbH...
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Page 24: 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 LDM41PN and LDM42PN 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 25: 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 LDM41PN and LDM42PN will send data and switches to digital and/or analog output. -
Page 26: Dm - Distance Measurement
DM mode triggers a single measurement (single shot) TP – internal temperature [°C] TP queries the value of the inner LDM41PN and LDM42PN temperature. Note: In tracking mode, the inner temperature may exceed the surrounding temperature level by as much as 10 K. -
Page 27: 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 LDM41PN and LDM42PN 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 28: Sf - Display/Set Scale Factor
An exception there from is zero-value. In this case, the LDM41PN and LDM42PN automatically picks the smallest possible time value for measurement! The LDM41PN and LDM42PN comes factory-set with ST = 0. -
Page 29: Se - Display/Set Error Mode [0/1/2]
SE (error mode) allows you to configure the behaviour of the digital switching output (alarm) and/or the analog output following an error message (E15, E16, E17). Depending on the particular LDM41PN and LDM42PN application environment, error messages have to be handled in different ways. -
Page 30: Ah - Display/Set Alarm Hysterese
8.17 HO – display/set Temperature for heating on HO displays/sets the temperature value at which the internal heating is switched on. The values can be varied between -40°C and 70°C. Standard setting is 3°C. Only for devices with internal heating (LDM41PN-h and LDM42PN-h) Page 30 ASTECH GmbH... -
Page 31: Hf - Display/Set Temperature For Heating Off
Available baud rate settings are: 2400, 4800, 9600, 19200, 38400. Faulty entries will be rounded to the nearest baud rate. A fixed data format of eight Trigger function is not available for devices with internal heating (LDM41PN-h and LDM42PN-h) ASTECH GmbH... -
Page 32: As - Display/Set Autostart Command
LO turns the Laser on. This function can be used for orientation or functional testing of the LDM41PN and LDM42PN. 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 33: Pa - Display Settings
8.26 PA – display settings PA lists all parameters in a table. 8.27 PR – reset settings PR resets all parameters (except baud rate). After this a new configuration of the LDM41PN and LDM42PN is necessary average value[SA]....1 display format[SD]....d measure time[ST]....0 scale factor[SF]....1... -
Page 34: Interface Connection
Profinet General The LDM41PN and LDM42PN is operated as a Profinet IO device. It becomes operational with master 16 byte entry data: 2x 8 bit error information, 16 bit measurement value counter, 32 bit time stamp, 32 bit distance and 8 bit internal temperature are available. - Page 35 LDM41PN and LDM42PN Manual 32 bit Distance 8 bit Temperature 21 bit reserved Profinet IN, Explanation of Error Codes Table 14 : Profinet error codes Code Description 0 (0x00) Received valid measurement value; Error Counter and Code are set to zero...
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Page 36: Serial Interface Rs232
LDM41PN and LDM42PN to standby operation, Bit 7 should be set at 1. The remaining bits have no meaning. If all bits are set at 0, then the LDM41PN and LDM42PN will operate in the DT mode (Distance Tracking, continuous measurement). -
Page 37: Digital Switching Output (Alarm)
LDM41PN and LDM42PN Manual decimal xxx.xxx<CR><LF> x=0…9 hexadecimal <SPACE>xxxxxx<CR><LF> x=0...F Decimal with signal xxx.xxx<SPACE>yyyyyy<CR><LF> quality x=0…9; y=0…9 SD affects all commands that output a distance value. An output value is calculated from a given measured distance value (in mm), multiplied by the scale factor SF. - Page 38 Interface Connection LDM41PN and LDM42PN Manual For example, using the digital switching output, an object which was selected for measurement can be monitored for excision of a threshold value. To do this, parameter settings for a measurement window are required. Settings for this window can be made via the three parameters: Alarm Center (AC), Alarm Hysteresis (AH) and Alarm Width.
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Page 39: 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 LDM41PN and LDM42PN has to be switched to trigger mode (see 8.6, DF – distance measurement with external trigger). -
Page 40: List Of Commands
Sets current distance as offset 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) Only for devices with internal heating (LDM41PN-h and LDM42PN-h) Page 40 ASTECH GmbH... -
Page 41: Error Codes Rs232 And Profinet
LDM41PN and LDM42PN Manual Error Codes RS232 and Profinet Table 16 : 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 42: Gsdml Data
GSDML Data LDM41PN and LDM42PN Manual GSDML Data The GSDML-File for the LDM41PN and LDM42PN device can be downloaded from the ASTECH-Website. Figure 9 : GSD data and bitmap Page 42 ASTECH GmbH... -
Page 43: 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 44: Part Numbers
12-2015-00 Protection tube for pressure air for LDM4x-Serie 11-0006-00 ASTECH USB-Stick (Documentation and Software) 16-2001-01 Printed Manual LDM41PN and LDM42PN, A5, DE 16-2001-02 Printed Manual LDM41PN and LDM42PN, A5, EN 17-2000-00 License number for PC-Software LDMTOOL for LDM3x und LDM4x Note: Several single sensors are also available as packages including sensor and cable, manual and CD (sets). - Page 45 LDM41PN and LDM42PN Manual Notice ASTECH GmbH...
- Page 46 Notice LDM41PN and LDM42PN Manual Page 46 ASTECH GmbH...
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