ASTECH LDM301-302 User manual

Manual
LDM301-302
Firmware Version from 1.5
Version 2.0

LDM301-302 Manual
Page 2 ASTECH GmbH
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 2018
Firmware version: ≥1.5
Manual version: V 2.0
File: Manual_LDM301-302_EN_V2.0.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.
ASTECH GmbH, Schonenfahrerstr. 5, D-18057 Rostock
Internet www.astech.de E-Mail [email protected]
Phone +49 (0)381 / 44073-0 Fax +49 (0)381 / 44073-20

Revision history
Manual Version
Date
Changes
2.0
25.06.2018
Laser divergence
1.9
18.10.2016
Laser divergence
1.8
26.02.2016
MTBF
1.7
01.06.2014
New design

Content LDM301-302 Manual
Page 4 ASTECH GmbH
I. Content
1General Information .................................................................................. 9
2Safety advice............................................................................................ 11
2.1 Basic safety advice .......................................................................... 11
2.2 Safety advice for operating the laser .............................................. 12
2.3 Advice for operating device ............................................................ 14
2.4 Norms ............................................................................................. 16
2.5 Disposal........................................................................................... 16
3Operating conditions ............................................................................... 17
3.1 Electrical installation conditions ..................................................... 17
3.2 Operating and storage conditions .................................................. 17
3.3 Appropriate use .............................................................................. 18
3.4 Improperly use –error sources....................................................... 19
4Device description ................................................................................... 20
4.1 General device description ............................................................. 20
4.2 Technical Data................................................................................. 22
4.3 Device Types ................................................................................... 25
4.4 Technical Data LDM302 .................................................................. 26
4.5 Laser divergence ............................................................................. 28
4.6 Functional Elements ....................................................................... 31
4.7 Mechanical Integration Requirements ........................................... 32
4.8 Connector pin assignments ............................................................ 33
4.9 Status Display.................................................................................. 36
4.10 Pilot Laser ....................................................................................... 37
5Interface description ............................................................................... 38
5.1 RS-232 interface.............................................................................. 38
5.2 RS-422 interface.............................................................................. 39
5.3 Q1 / Q2 –Digital switching output ................................................. 40
5.4 QA –Analog output ........................................................................ 42
5.5 Trigger Port ..................................................................................... 44
5.6 SSI Interface of LDM301S................................................................ 46
5.7 Profibus Interface of LDM301P....................................................... 47
6Installation............................................................................................... 56
6.1 Preparation Work before the installation....................................... 56
6.2 Checklist for installation works....................................................... 56
7Description of commands........................................................................ 58

LDM301-302 Manual Content
ASTECH GmbH Page 5 Seite 5
7.1 Overview of commands ..................................................................58
7.2 Transmission protocol RS-232 and RS-422...................................... 61
7.3 Identification ................................................................................... 61
7.4 Operation Mode.............................................................................. 63
7.5 Status............................................................................................... 65
7.6 Setup Parameter .............................................................................67
8Maintenance ............................................................................................ 80
8.1 Maintenance by the user ................................................................ 80
8.2 Firmware update.............................................................................80
8.3 Repair .............................................................................................. 80
9Malfunction and error messages .............................................................81
9.1 Malfunction..................................................................................... 81
9.2 Error Codes......................................................................................81
9.3 Error Status .....................................................................................81
10 Accessories (Options)...............................................................................82
10.1 RS-232 cable.................................................................................... 82
10.2 Connection box TCBLDM.................................................................83
10.3 Adjustment bracket.........................................................................83
10.4 Dot Sight AD30 ................................................................................ 83
10.5 Adapter plate .................................................................................. 84
10.6 Dust protection tube....................................................................... 85
10.7 Protection Case ...............................................................................86
10.8 Software LDMTool...........................................................................87
11 Part numbers ........................................................................................... 88
12 EG Declaration of conformity ..................................................................89

List of figures LDM301-302 Manual
Page 6 ASTECH GmbH
II. List of figures
Figure 1 : Device warning sign ......................................................................... 14
Figure 2 : Position of the device warning sign ................................................. 14
Figure 3 : Beam diagram for LDM301 with 1.7 mrad ....................................... 28
Figure 4 : Beam diagram for LDM301 with 10 mrad ........................................ 29
Figure 5 : Beam diagram for LDM302 .............................................................. 30
Figure 6 : Functional Elements ......................................................................... 31
Figure 7 : Dimensions and position of the zero point (in mm)......................... 32
Figure 8 : Connection drawing of the main connector..................................... 33
Figure 9 : Connection diagram LDM301S SSI ................................................... 34
Figure 10 : Connection diagram LDM301P Profibus-IN.................................... 35
Figure 11 : Connection diagram LDM301P Profibus-OUT ................................ 35
Figure 12 : Status Display ................................................................................. 36
Figure 13 : Pilot Laser position relative to measurement laser........................ 37
Figure 14 : Wiring RS-232 to D-Sub 9 ............................................................... 38
Figure 15 : Wiring RS-422 to RS-422 unit ......................................................... 39
Figure 16 : Switching behavior of digital outputs............................................. 40
Figure 17 : Example of switching output wiring ............................................... 41
Figure 18 : Signal diagram of LDM301 analog output ...................................... 42
Figure 19 : Behavior of analog current output................................................. 42
Figure 20 : Wiring analog output QA of LDM301 ............................................. 43
Figure 21 : Example for the external wiring of the trigger input...................... 45
Figure 22 : Interconnection of several LDM301 devices .................................. 45
Figure 23 SSI connection diagram LDM301S M12 connector .......................... 46
Figure 24 : Profibus connection diagram LDM301P M12 connector ............... 49
Figure 25 : Program LDMTool........................................................................... 57
Figure 26 : Online Help (Command ID?)........................................................... 62
Figure 27 : Display of all parameters (command PA) ....................................... 65
Figure 28 : Parameter reset (command PR) ..................................................... 68
Figure 29 : PC-Interface cable with power supply............................................ 82
Figure 30 : Red dot sight................................................................................... 83
Figure 31 : Adapater plate................................................................................ 85
Figure 32 : Dust protection tube ...................................................................... 86
Figure 33 : Protection Case .............................................................................. 86

LDM301-302 Manual List of tables
ASTECH GmbH Page 7 Seite 7
III. List of tables
Table 1 : Electrical installation conditions ........................................................17
Table 2 : Technical data ....................................................................................22
Table 3 : Device types ....................................................................................... 25
Table 4 : Technical Data LDM302 .....................................................................26
Table 5 : Beam size for LDM301 with 1.7 mrad ................................................ 28
Table 6 : Beam size for LDM301 with 10 mrad ................................................. 29
Table 7 : Beam size for LDM302 ....................................................................... 30
Table 8 : Pin assignments of main connector port ...........................................34
Table 9 : Status display - functions ...................................................................36
Table 10 : Profibus baud rate depending on segment length .......................... 48
Table 11 : Profibus cable type A features .........................................................49
Table 12 : Explanation Profibus parameters.....................................................50
Table 13 : Profibus parameter ..........................................................................50
Table 14 : Profibus diagnostic data length ....................................................... 52
Table 15 : Profibus diagnostic data...................................................................53
Table 16 : Profibus Input................................................................................... 54
Table 17 : Profibus Output................................................................................54
Table 18 : Installation of LDM301.....................................................................56
Table 19 : Overview of commands ...................................................................58
Table 20 : Standard deviation for speed measurement ...................................65
Table 21 : Description for hardware diagnosis ................................................. 66
Table 22 : Pilot laser PLx, x value ...................................................................... 68
Table 23 : Spread of distance measurement ....................................................72
Table 24 : Error Mode SEx, values for x ............................................................73
Table 25 : Function of the switching outputs under different modes ..............74
Table 26 : Serial output format SDy, parameter y ............................................76
Table 27 : Termination character(s) TEx, parameter x ..................................... 78
Table 28 : Malfunction...................................................................................... 81
Table 29 : Error codes .......................................................................................81
Table 30 : Error Status ...................................................................................... 81
Table 31 : Connection of programming cable PC sided .................................... 82
Table 32 : Connection of programming cable LDM301 sided...........................82
Table 33 : Part numbers.................................................................................... 88

List of tables LDM301-302 Manual
Page 8 ASTECH GmbH
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 degree of protection (IP) of the device.
Sign informs that special guidelines had to be applied for device
disposal.

LDM301-302 Manual General Information
ASTECH GmbH Page 9 Seite 9
1General 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 heating, 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.

General Information LDM301-302 Manual
Page 10 ASTECH GmbH
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.