ASTECH LDS30 User manual

Manual
LDS30
Version 2.0

LDS30 Manual
Page 2 ASTECH GmbH
Dear User,
You are advised to carefully read this User Manual before turning on the Laser
Distance Sensor LDS30 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: March 2015
Firmware version: ≥1.8
Manual version: V 2.0
File: Manual_LDS30_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.
Revision history
Manual Version
Date
Changes
2.0
30.03.2016
Resolution changed
1.9
11.11.2015
Changes in command Q1/Q2
Technical Data changed
1.8
24.09.2015
RS485 deleted
1.7
15.09.2015
Changes in UB command
1.6
05.03.2015
New design
ASTECH GmbH, Schonenfahrerstr. 5, D-18057 Rostock
Internet www.astech.de E-Mail [e-mail]
Telephone +49 (0)381 / 44073-0 Telefax +49 (0)381 / 44073-20

LDS30 Manual Content
ASTECH GmbH Page 3 Seite 3
I. Content
1General Information .................................................................................. 8
2Safety advice .............................................................................................. 9
2.1 Basic safety advice ............................................................................ 9
2.2 Safety advice for Laser Class 1 ........................................................ 10
2.3 Advice for operating device ............................................................ 10
2.4 Norms.............................................................................................. 11
2.5 Disposal ...........................................................................................12
3Operating conditions ............................................................................... 13
3.1 Electrical installation conditions ..................................................... 13
3.2 Operating and storage conditions...................................................13
3.3 Appropriate use ..............................................................................13
3.4 Improperly use –error sources ....................................................... 14
4Device description.................................................................................... 16
4.1 General device description ............................................................. 16
4.2 Technical Data ................................................................................. 17
4.3 Mechanical integration requirements ............................................ 19
4.4 Dimensions of laser spot .................................................................21
4.5 Connector pin assignments............................................................. 21
5Interface description................................................................................24
5.1 Serial interface RS-232 .................................................................... 24
5.2 Serial interface RS-422 .................................................................... 25
5.3 Q1/Q2 –Digital switching output....................................................26
5.4 QA –Analog output......................................................................... 28
6Start-up LDS30A ....................................................................................... 30
6.1 Preparation of start-up ................................................................... 30
6.2 Start-up checklist............................................................................. 30
7Description of commands ........................................................................ 32
7.1Overview of commands ..................................................................32
7.2 Transmission protocol RS-232 and RS-422...................................... 34
7.3 Operating modes............................................................................. 35
7.4 Identification commands ................................................................ 38
7.5 Status commands............................................................................39
7.6 Command for parameter setup ...................................................... 41
8Maintenance ............................................................................................ 52
8.1 Maintenance by the user ................................................................ 52

Content LDS30 Manual
Page 4 ASTECH GmbH
8.2 Firmware update ............................................................................ 52
8.3 Repair.............................................................................................. 52
9Malfunction and error messages............................................................. 53
10 Accessories (Options) .............................................................................. 54
10.1 RS-232 cable for LDS30A/RS-232 .................................................... 54
10.2 Connection box TCBS30A................................................................ 54
10.3 Adjustment bracket JW51x............................................................. 55
10.4 Software LDMTool from version 4.8 ............................................... 55
11 Part numbers ........................................................................................... 56
12 EG Declaration of conformity .................................................................. 57

LDS30 Manual List of figures
ASTECH GmbH Page 5 Seite 5
II. List of figures
Figure 1 : Installation and mounting LDS30A (in mm) ......................................19
Figure 2 : Installation and mounting LDS30M (in mm) ..................................... 20
Figure 3 : Interface cable socket top view ........................................................ 22
Figure 4 : Connector LDS30M ........................................................................... 23
Figure 5 : RS-232 Interface of LDS30A .............................................................. 24
Figure 6 : RS-422 Interface of LDS30A .............................................................. 25
Figure 7 : Digital switching output Q1 and Q2 LDS30 ....................................... 26
Figure 8 : Switching behavior of digital outputs ............................................... 27
Figure 9 : Signal diagram of LDS30 analog output ........................................... 28
Figure 10 : Behavior of analog current output .................................................28
Figure 11 : Wiring analog output QA of LDS30A...............................................29
Figure 12 : Program LDMTool ........................................................................... 31
Figure 13 : Maximum output rate at MF = 15.000 ........................................... 36
Figure 14 : Binary data output in mode FT .......................................................37
Figure 15 : Output of the ID? command ........................................................... 38
Figure 16 : Output of the PA command ............................................................ 39
Figure 17 : Data output of command HW ........................................................ 40
Figure 18 : Reset to factory settings by command PR ......................................42
Figure 19 : Binary data output at SD2 3............................................................50

List of tables LDS30 Manual
Page 6 ASTECH GmbH
III. List of tables
Table 1 : Electrical installation conditions........................................................ 13
Table 2 : Technical data.................................................................................... 17
Table 3 : Dimensions of laser spot ................................................................... 21
Table 4 : Pin assignment LDS30A...................................................................... 21
Table 5 : Pin assignment connector LDS30M ................................................... 22
Table 6 : Start-up LDS30A................................................................................. 30
Table 7 : Overview of commands ..................................................................... 32
Table 8 : Scattering of distance measurement................................................. 45
Table 9 : Error Mode SEx, meaning of parameter x ......................................... 46
Table 10 : Serial output format SDy, meaning of parameter y ........................ 48
Table 11 : Termination character(s) TEx, meaning of parameter x .................. 51
Table 12 : Malfunction ..................................................................................... 53
Table 13 : Error codes....................................................................................... 53
Table 14 : Pin assignment of programming cable PC sided.............................. 54
Table 15 : Pin assignment of programming cable LDS30 sided........................ 54
Table 16 : Part numbers ................................................................................... 56

LDS30 Manual
ASTECH GmbH Page 7 Seite 7
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.

General Information LDS30 Manual
Page 8 ASTECH GmbH
1General Information
The Laser Distance Sensor LDS30 was developed for industrial applications. It
enables non-contact measurement of distances in a large working range and
with a high sampling rate up to 30 kHz to almost any diffusely reflecting
surface to 30 m and up to 250 m on reflectors. The sensor uses an eye-safe
laser radiation at a wavelength of 905 nm (infrared).
It is available as a complete device LDS30A with various interfaces in an IP67
enclosure or as a module LDS30M for system integration. The IP67 model
variant is impact and shock resistant and ideally suited for use in harsh
industrial environments.
The LDS30A has an RS-232 or RS-422 interface, an analog output and 2 digital
outputs. The device is easy to install and operate. The module has just a RS-
422 interface with CMOS level.
The LDS30A is characterized by very compact and rugged design, easy
mounting, low power, adjustable switching outputs and the ability to set user-
specific parameters. This opens up a variety of uses in industrial applications.
Rapid process monitoring
Position monitoring
Level measurement
Monitoring of object movements
Positioning of cranes and loading equipment
Measurement of inaccessible points, for example in cavities, pipes
and containers
Particularly suitable for use in scanners
The LDS30 sensor 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 type of
the measuring target.

LDS30 Manual Safety advice
ASTECH GmbH Page 9 Seite 9
2Safety advice
2.1 Basic safety advice
Please read the safety and operating advice carefully, and observe the advice
when operating the device.
Danger of Laser radiation
Do not open the LDS30, otherwise Laser radiation can be emitted
that can cause eye injuries. Please observe all information and
guidelines for operating the Laser.
The LDS30 corresponds to Laser class 1 based on the standard
IEC 60825-1:2007. The radiation of class 1 Lasers does not imply
any danger to the human eye; any injury of the human eye can be
excluded.
Danger, electric shock
The LDS30 may only be opened for repair purposes by the
manufacturer. If the device is opened arbitrarily without
authorization, all warranty claims will expire.
The operating and storage conditions have to be observed (see
chapter 3). The inobservance of this advice and the adverse use of
the device can lead to injuries of the user or to damage of the
device.
Connectors may not be plugged or unplugged when voltage is
applied. All installation 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.
Protection Class 3, low voltage

Safety advice LDS30 Manual
Page 10 ASTECH GmbH
The device LDS30 operates with low voltage of DC 10 to 30 volts.
Protection degree: In accordance with the Protection Degree IP67,
the LDS30A is protected against jet water and dust, and against
short submersion into water.
When operating the device under extreme outdoor environmental
conditions, the use of additional weather protection is
recommended (e.g. a cover plate with a short distance to the
LDS30A). Rapid temperature changes can lead to humidity entering
the device.
The device is not shatter-proof. Do not let the device fall onto the
ground, and avoid any shock.
The device is delivered in a solid cardboard box, which is suited for
the transport of the device.
The device may not be used in explosive environments; otherwise
there is the danger of damage to the LDS30 and the surrounding
equipment, and of injuries of the user.
2.2 Safety advice for Laser Class 1
The LDS30 is a calls 1 Laser product based on the norm
IEC 60825-1:2007. The laser radiation of class 1 Lasers does not
imply any danger to the human eye; any injury of the human eye
can be excluded
2.3 Advice for operating device
The LDS30 should not be put into operation when optical parts are
fogged or dirty. The optical components of the equipment should
not be touched with bare hands!
Dust and dirt are removed from the optical components with
extreme caution! Cleaning with solvents or mechanical means is
not allowed.

LDS30 Manual Safety advice
ASTECH GmbH Page 11 Seite 11
The device must be protected against overheating. The device will
not be switched off automatically when the operating
temperatures are exceeded. The persisting overheating of the
device will lead to a reduced lifetime of the laser diode.
The device must be protected from impact.
The device must be protected from extreme temperature
fluctuations. When extreme temperature fluctuations are occurring
use additional protection housing.
It is not allowed to operate the device in explosive environments.
The device corresponds to the protection degree IP 67, and is
protected against jet water and short submersion. Please observe
the conditions for the protection degree IP 67, and observe
especially the following advice:
The device must not be exposed to persisting driving rain or
high temperature variations.
If the device is exposed to humidity, the temperature
difference between the device and the environment may be
± 5K maximum.
It is necessary to observe the operating and storage conditions.
For the LDS30A use only a supply voltage of 10 V ... 30 V DC (direct current
voltage).
The limit values for the input voltage have to be observed. Do not wire inputs
as outputs. All outputs are resistant to short circuits. The housing is
galvanically separated from the sensor electronics assembly. The interference
resistance at electrostatic discharge (ESD) is 4 kV according to IEC 61326-1.
2.4 Norms
The device conforms to the following norms:

Safety advice LDS30 Manual
Page 12 ASTECH GmbH
IEC 61326-1:2006
Electrical equipment for measurement, control and
laboratory use - EMC requirements - Part 1: General
requirements (IEC 61326-1:2006); German version EN
61326-1:2007
IEC 60825-1:2007
Safety of Laser products –Part 1: equipment
classification and requirements
(IEC 60825-1:2007), Laser Class 1
IEC 61010-1:2001
Safety requirements for electrical equipment for
measurement, control and laboratory use - General
requirements (IEC 61010-1:2001);
German version EN 61010-1:2001
2.5 Disposal
For the disposal of the device, special environmental protection
guidelines apply. Do not dispose the device with the usual domestic
refuse. The manufacturer offers to take back the device after the
end of the product life cycle, and to dispose of the product in
accordance with the effective environmental protection guidelines.
Please note that this service is subject to a charge.

LDS30 Manual Operating conditions
ASTECH GmbH Page 13 Seite 13
3Operating conditions
3.1 Electrical installation conditions
For the operation of LDS30A use only a DC voltage of 10 V ... 30 V.
The limit values for the input voltage have to be observed. Do not
wire inputs as outputs.
All outputs are short circuit proof.
The housing is galvanically separated from the sensor electronics assembly.
The interference resistance at electrostatic discharge (ESD) is 4 kV according
to EN 61326-1.
Table 1 : Electrical installation conditions
Electrical installation conditions of LDS30A
Supply voltage
10 V ... 30 V DC (direct current voltage)
Power consumption
< 3 W
3.2 Operating and storage conditions
Operating temperature 0 °C … +50 °C
Stroage temperature -40 °C ... +70 °C
Air humidity 10 % ... 90 % not condensing
The mentioned operating and storage conditions have to be
observed. When the operating temperatures exceed the permitted
values, the device will not be switched off automatically. The
continuous overheating of the device will reduce the lifetime of the
laser diode.
3.3 Appropriate use
The device is intended for the following applications:
Distance measurement and output of measured data via RS-232 or RS-422
interface, analogue output and digital outputs.
It should be noted:

Operating conditions LDS30 Manual
Page 14 ASTECH GmbH
Operation with correct supply voltage,
Compliance with environmental conditions, the operating and
storage temperature,
Protection of windows against fogging and soiling,
Using data lines with specified signal levels,
Observing of guidelines in this manual.
Measurement through optically transparent material
Measurement through optically transparent materials such as glass,
optical filters, acrylic glass etc. can lead to erroneous measurement
results. When measuring through optically transparent material,
use the function “measurement window”. By using this function
due to setting a fixed measurement range, a wrong measurement -
caused by an optical medium in front of the laser - may be avoided.
Please take care that the surface of the medium is clean and clear.
3.4 Improperly use –error sources
The device may only be used when the safety advice described in chapter 2 is
observed. The non-observance of the safety advice can lead to damages of the
device or to injuries of the eyes.
To achieve correct measurement results, avoid the following error sources:
Measurement against the sun or other intense light sources
Measurement onto low reflective target surfaces in highly reflective
environments
Measurements onto highly reflective surfaces (mirror)
Measurements through glass, optical filter, Plexiglas or other
transparent materials can lead to measurement errors
Two or more LDS30A may not be aligned in "frontal view" because
the devices interact each other
Operation and storage of the device under conditions that do not
conform with the specifications

LDS30 Manual Operating conditions
ASTECH GmbH Page 15 Seite 15
The operating temperatures have to be observed. The overheating
of the device has to be avoided in any case. When the operating
temperatures are exceeded, the device is not switched off
automatically. Persisting overheating of the device leads to a
reduced lifetime of the laser diode.

Device description LDS30 Manual
Page 16 ASTECH GmbH
4Device description
4.1 General device description
The Laser distance measurement device LDS30 is made for distance
measurement onto static and moving objects with a precision down to the
centimeter:
Measurement within 0.2 m ... 30 m onto natural surfaces with
reflectance > 10%
Measurement onto reflectors (e.g. Scotchlite 3000x) at distances
between 0.2 m and 250 m.
Serial interfaces
The LDS30A is equipped with either RS-232 or with RS-422 interface. The
interface configuration will be made during assembly. The interface cannot be
changed retroactively.
Outputs
The LDS30A has two switching outputs and an analogue output
(4 mA ... 20 mA). All outputs are to be parameterized.
Module version
The LDS30M module just has a RS-422 interface with CMOS level and no other
interfaces.
The module is also available as set with interface board, optionally with
RS-232 or RS-422. Due to this, interface and outputs regarding the LDS30A are
realized.

LDS30 Manual Device description
ASTECH GmbH Page 17 Seite 17
4.2 Technical Data
Table 2 : Technical data
Measurement properties
Measurement principle
Laser pulse - Time of flight
measurement
Measurement range 1
onto target board 2
for target reflectance >10 %
0.2 m ... 250 m
0.2 m ... 30 m
Measurement accuracy 3
5 cm
Repeatability
2 cm
Measurement resolution
1 cm
Maximum measurement rate
30 kHz in FT mode
15 kHz in DT mode
Maximum output rate
binary data output
ASCII-coded data output
30 kHz in FT mode
10 kHz in DT mode
4 kHz in DT mode
Laser
Laser protection class
Laser Class 1, IEC 60825-1:2007
Laser wavelength
905 nm (infrared)
Laser divergence
3 mrad × 1 mrad
Environmental and application conditions
Operating temperature
0 °C ... +50 °C (standard)
-20 °C … +50 °C (option –c)
Storage temperature
-40 °C ... +70 °C
Air humidity
10 % ... 90 %, non-condensing
1
depends on the reflection properties of the target, ambient light influence and atmospherically
conditions
2
e.g.. Scotchlite Cube 3000x
3
for single measurement, 1 Sigma

Device description LDS30 Manual
Page 18 ASTECH GmbH
Data LDS30A (IP 67 Device)
Serial interface
RS-232 or RS-422 4
9600 … 921600 Baud, 8N1, ASCII
Analogue output
4 … 20 mA
Load resistance 500 
Switching output
2x “High-Side-switch“,
load up to 0.2 A
Supply voltage
10 VDC … 30 VDC
Power consumption (max.)
3 W
EMC
IEC 61000-6-2 and IEC 55011
Shock / Vibration
DIN ISO 9022-3
Weight / Protection
approximately 125 g / IP 67
Dimensions (LxWxH)
86 mm × 45 mm × 45 mm
(incl. connector)
Options
Connection cable (1.5; 3; 5; 10 m),
adjustment bracket, connectors, computer
cable, Software LDMTool
Data LDS30M (Module)
Serial interface
RS-422, CMOS level 3,3 V
9600 … 921600 Baud, 8N1, ASCII
Supply voltage
6.5 VDC ... 7.0 VDC
Power consumption (max.)
2.5 W
Weight / Protection
approximately 50 g / non
Dimensions (LxWxH)
40 mm × 40 mm × 40 mm (approx.)
4
Ordering information LDS30A/RS-232 or LDS30A/RS-422 (see order codes on chapter 11)

LDS30 Manual Device description
ASTECH GmbH Page 19 Seite 19
4.3 Mechanical integration requirements
The LDS30A can be fixed with 2 screws M4x50 (screw length according
counterpart). The mounting screws are not included.
Figure 1 : Installation and mounting LDS30A (in mm)

Device description LDS30 Manual
Page 20 ASTECH GmbH
The module LDS30M has to be fastened with 4 screws M2.5. The screw length
is determined by the counterpart.
Figure 2 : Installation and mounting LDS30M (in mm)
Avoid any tension to the PCB caused by module fixing.
Zero point will be set by commands OF or SO!