ASTECH LDM41E User manual

Manual
LDM41E and LDM42E
Version 1.6

LDM41E and LDM42E Manual
Page 2 ASTECH GmbH
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.
This technology is subject to continuously ongoing development.
Editorial deadline: July 2018
Firmware version: ≥7.05 and 8.06
Manual version: V 1.6
FIle: Manual_LDM41-42E_EN_V1.6.docx
Note:
Proper care has been used in compiling this document. No liability will be
accepted in the event of damage resulting from failure to comply with the
information contained herein.
Revisions history
Manual Version
Date
Changes
1.6
27.07.2018
Max. Trigger voltage
1.5
29.06.2016
E19 added, MTBF
1.4
16.03.2015
New design
ASTECH GmbH, Schonenfahrerstr. 5, D-18057 Rostock
Internet: www.astech.de E-Mail: [e-mail]
Phone: +49 (0)381 / 44073-0 Fax: +49 (0)381 / 44073-20

LDM41E and LDM42E Manual Content
ASTECH GmbH Page 3
I. Content
1 General.......................................................................................................6
2 Safety Instructions ..................................................................................... 8
2.1 General Safety Instructions...............................................................8
2.2 Intended & Conforming Use ............................................................. 8
2.3 Nonconforming use...........................................................................8
2.4 Laser Classification ............................................................................9
2.5 Electric Supply ................................................................................. 10
2.6 Important Operating Advice ........................................................... 10
3 Technical Data..........................................................................................11
4 Mechanical Mounting Conditions............................................................13
5 Electrical Connection ............................................................................... 15
5.1 Rear-Side Cover Terminals ..............................................................15
5.2 Assignment of Terminals.................................................................16
5.3 Shield and Grounding......................................................................18
6 Limiting Values for Voltages ....................................................................19
7 Start up ....................................................................................................20
7.1 Start up with RS232.........................................................................20
7.2 Start up with Ethernet.....................................................................21
8 Commands and Parameter ......................................................................23
8.1 General............................................................................................23
8.2 DT –distance tracking ..................................................................... 25
8.3 DS –distance tracking (<7 m).......................................................... 25
8.4 DW –distance tracking with target board (10 Hz) ..........................25
8.5 DX –distance tracking with target board (50 Hz) ........................... 26
8.6 DF –distance measurement with external trigger..........................26
8.7 DM –distance measurement .......................................................... 27
8.8 TP –internal temperature [°C] ........................................................ 27
8.9 SA –display/set average value [1..20] ............................................27
8.10 SD –display/set display format [d/h/s}] .........................................27
8.11 ST –display/set measure time [0..25].............................................28
8.12 SF –display/set scale factor ............................................................ 29

Content LDM41E and LDM42E Manual
Page 4 ASTECH GmbH
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 –display/set Temperature for heating on ................................ 31
8.18 HF –display/set Temperature for heating off 17 ............................. 32
8.19 RMx y z –display/set remove measurement.................................. 32
8.20 TDx y –display/set trigger delay trigger level................................. 33
8.21 TMx y –display/set trigger mode trigger level ............................... 33
8.22 BR –display/set baud rate [2400..38400] ...................................... 35
8.23 AS –display/set autostart command.............................................. 35
8.24 OF –display/set distance offset...................................................... 35
8.25 SO –set current distance to offset ................................................. 35
8.26 LO –Laser on................................................................................... 36
8.27 LF –laser off.................................................................................... 36
8.28 PA –display settings ....................................................................... 36
8.29 PR –reset settings .......................................................................... 36
9 Interface Connection ............................................................................... 37
9.1 Ethernet .......................................................................................... 37
9.2 Serial Interface RS232 ..................................................................... 39
9.3 Output Format Ethernet and RS232 ............................................... 39
9.4 Digital Switching Output (Alarm) .................................................... 40
9.5 Trigger Input ................................................................................... 42
10 List of Commands .................................................................................... 43
11 Error Codes .............................................................................................. 45
12 EG Declaration of Conformity.................................................................. 46
13 Part Numbers........................................................................................... 47

LDM41E and LDM42E Manual Content
ASTECH GmbH Page 5
II. List of Figures
Figure 1 : Measurement principle ......................................................................6
Figure 2 : Warning Sign Laser Radiation Class 2 .................................................9
Figure 3 : Dimensional drawing ........................................................................13
Figure 4 : Offset against zero-edge...................................................................14
Figure 5 : LDM41E and LDM42E terminals .......................................................15
Figure 6 : Isolated isntallation...........................................................................18
Figure 7 : Program LDMTool ............................................................................. 21
Figure 8 : Program EtherTool............................................................................ 22
Figure 11 : Trigger level = 1...............................................................................34
Figure 12 : Trigger level = 0...............................................................................35
Figure 13 : Telnet Program ...............................................................................37
Figure 14 : LDM41E Sensor Page ...................................................................... 38
Figure 15 : Digital output behavior, positive/negative hysteresis ....................41
III. List of tables
Table 1 : Technical data ....................................................................................11
Table 2 : LDM41E and LDM42E terminals......................................................... 15
Table 3 : Pin assignment power supply and trigger.......................................... 16
Table 4 : Pin assignment Fast Ethernet............................................................. 16
Table 5 : Pin assignment RS232 ........................................................................17
Table 6 : Pin assignment programming cable................................................... 18
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................................................ 43
Table 14 : Error codes ....................................................................................... 45
Table 15 : Part numbers.................................................................................... 47