Baumer OM20 Bedienungsanleitung
V1 | 3/16/2021
EN-US
Operating Manual
Laser distance sensors
OM20/ OM30 RS485 with Modbus RTU
List of contents Baumer
ii Operating Manual OM20/ OM30 RS485 with Modbus RTU | V1
List of contents
1 About this document................................................................................................................................... 4
1.1 Purpose ................................................................................................................................................ 4
1.2 Warnings in this manual ....................................................................................................................... 4
1.3 Labels in this manual ............................................................................................................................ 5
1.4 Liability limitation................................................................................................................................... 5
1.5 Name plate ........................................................................................................................................... 5
1.6 Scope of delivery .................................................................................................................................. 6
2 Safety............................................................................................................................................................ 7
2.1 Personnel requirements........................................................................................................................ 7
2.2 General information .............................................................................................................................. 7
2.3 Laser..................................................................................................................................................... 8
3 Description................................................................................................................................................... 9
3.1 Structure ............................................................................................................................................... 9
3.2 General functionality ............................................................................................................................. 9
3.3 Measurement field ................................................................................................................................ 10
3.4 Operating and display elements ........................................................................................................... 11
3.4.1 Sensor LEDs........................................................................................................................... 11
3.4.2 Teach button ........................................................................................................................... 11
3.5 Modbus RTU......................................................................................................................................... 13
3.6 Dimensional drawing ............................................................................................................................ 16
4 Transport and storage ................................................................................................................................ 17
4.1 Transport .............................................................................................................................................. 17
4.2 Delivery inspection................................................................................................................................ 17
4.3 Storage ................................................................................................................................................. 17
5 Installation instructions .............................................................................................................................. 18
6 Electrical installation................................................................................................................................... 20
6.1 Pin assignment ..................................................................................................................................... 20
6.2 Connection diagram.............................................................................................................................. 20
6.3 Connecting the sensor to electricity...................................................................................................... 20
7 Commissioning............................................................................................................................................ 21
7.1 Factory settings .................................................................................................................................... 21
7.2 Set up RS485 interface with Modbus RTU ........................................................................................... 22
7.3 Measured value and additional information .......................................................................................... 23
7.3.1 Measurement rate................................................................................................................... 24
7.3.2 Exposure reserve.................................................................................................................... 24
7.3.3 Response delay ...................................................................................................................... 25
Baumer List of contents
OM20/ OM30 RS485 with Modbus RTU | V1 Operating Manual iii
8 Functions ..................................................................................................................................................... 26
8.1 Communication parameters.................................................................................................................. 26
8.2 Filter...................................................................................................................................................... 27
8.3 Trigger mode ........................................................................................................................................ 30
8.4 Zero position ......................................................................................................................................... 31
8.5 Measurement range.............................................................................................................................. 32
8.6 Invalid Value Handling .......................................................................................................................... 33
8.7 Switching points.................................................................................................................................... 35
8.8 Polarity.................................................................................................................................................. 36
8.9 Hysteresis ............................................................................................................................................. 37
8.10 Function of the LED .............................................................................................................................. 40
8.11 Function of the Teach button ................................................................................................................ 40
8.12 Switching the laser on and off............................................................................................................... 41
8.13 Resetting the sensor............................................................................................................................. 42
8.14 Individual sensor identification.............................................................................................................. 42
9 Diagnostic data............................................................................................................................................ 43
9.1 Operating time ...................................................................................................................................... 43
9.2 Histogram function................................................................................................................................ 44
9.3 Device information ................................................................................................................................ 48
10 Maintenance................................................................................................................................................. 50
10.1 Cleaning the sensor.............................................................................................................................. 50
11 Troubleshooting .......................................................................................................................................... 51
11.1 Return and repair.................................................................................................................................. 51
11.2 Accessories .......................................................................................................................................... 51
1 | About this document Baumer
4 Operating Manual OM20/ OM30 RS485 with Modbus RTU | V1
1 About this document
1.1 Purpose
This operating manual (subsequently referred to as the manual) allows the safe and efficient
handling of the product OM20/OM30.
The manual does not provide instructions on operating the machine in which the product is inte-
grated. Information on this is found in the operating manual of the machine.
The manual is a constituent part of the product. It must be kept in the immediate vicinity of the
product and must be accessible to personnel at all times.
Personnel must have carefully read and understood this manual before beginning any work.
The basic prerequisite for safe working is compliance with all safety instructions and handling
instructions given in this manual.
In addition, the local occupational health and safety regulations and general safety regulations
apply.
The illustrations in this manual are examples only. Deviations are at the discretion of Baumer at
all times.
1.2 Warnings in this manual
Warnings draw attention to injury or material damage. The warnings in this manual indicate dif-
ferent hazard levels:
Symbol Warning term Explanation
DANGER Indicates an immediate danger with high risk that will lead to death
or serious injury if not avoided.
WARNING Indicates a possible danger with medium risk that may lead to
death or (serious) injury if not avoided.
CAUTION Indicates a danger with low risk that could lead to slight or medium
injury if not avoided.
NOTE Indicates a warning of material damage.
INFO Indicates practical information and tips that enable optimal use of
the devices.
Baumer About this document | 1
OM20/ OM30 RS485 with Modbus RTU | V1 Operating Manual 5
1.3 Labels in this manual
Identifier Use Example
Dialog element Indicates dialog elements. Click the OK button.
Unique name Indicates the names of products,
files, etc.
Internet Explorer is not supported
in any version.
Code Indicates entries. Enter the following IP address:
192.168.0.250
1.4 Liability limitation
All information and notes in this manual have been compiled in accordance with the applicable
standards and regulations, the state of the art, and our many years of knowledge and experi-
ence.
The manufacturer accepts no liability for damage due to the following reasons:
nNon-observance of the manual
nImproper use
nUse of unqualified personnel
nUnauthorized conversions
The obligations agreed in the delivery contract, the general terms and conditions and the deliv-
ery conditions of the manufacturer and its suppliers, as well as the legal regulations valid at the
time of conclusion of the contract apply.
1.5 Name plate
Swiss made
1
2
3
Ill.1: Name plate
1 Short item name (OMxx item number) 2 Production date
3 Serial number
1 | About this document Baumer
6 Operating Manual OM20/ OM30 RS485 with Modbus RTU | V1
1.6 Scope of delivery
The scope of delivery includes:
n1 x sensor
n1 x Quickstart
n1 x general information leaflet
In addition, you can find the following information, among other things, in digital format at
www.baumer.com:
nOperating manual
nData sheet
n3D CAD drawing
nQuickstart
nDimensional drawing
nConnection diagram & pin assignment
nCertificates (EU conformity declaration, etc.)
Baumer Safety | 2
OM20/ OM30 RS485 with Modbus RTU | V1 Operating Manual 7
2 Safety
2.1 Personnel requirements
Certain work with the product may only be carried out by specialized personnel.
Specialized personnel are staff members who can evaluate the tasks assigned to them and rec-
ognize potential danger, based on their training and work as well as a reliable understanding of
technical safety issues.
Qualified personnel are divided into the following categories:
nInstructed personnel:
A person who has been informed and, if required, trained, by a specialist about the assigned
tasks and potential dangers of improper behavior.
nSpecialist:
A person who, based on his/her training, experience, and instruction, as well as his/her
knowledge of applicable standards, rules, and accident prevention regulations, has been au-
thorized to carry out the respectively required tasks, while recognizing and avoiding poten-
tial dangers.
nElectrical specialist:
A person with the appropriate specialist training, knowledge, and experience allowing him/
her to recognize and avoid dangers originating from electricity.
2.2 General information
Instructions for appropriate use
Instructions for appropriate use This product is a precision device designed for the detection of
objects, the acquisition of physical measuring units and for the evaluation of measured values
for output in the form of electrical signals for the higher-level system.
Unless not especially labelled, the product must not be used in potentially explosive atmos-
pheres.
Set-up
Installation, mounting and adjustment of this product may only be executed by skilled and au-
thorised personnel.
Installation
Only use the provided mounting devices and accessories for product installation. Unused out-
puts must not be assigned. Unused strands must be isolated. Do not exceed the maximum per-
missible bending radius of the cable. Prior to electrical connection of the product, the system
must be down and not live. Where mandatory, use shielded cables for protection against elec-
tromagnetic interference. Where plug-in connections are added to shielded cables by the cus-
tomer, these plug-in connections must be EMC compliant and the cable shield must be attached
to the connector housing over a large surface area.
Disposal (environmental protection)
Do not dispose of electrical and electronic equipment in household waste. The
product contains valuable raw materials for recycling, which is why the old prod-
uct must be returned to an authorised collecting point for correct disposal/recy-
cling. For further information see www.baumer.com.
2 | Safety Baumer
8 Operating Manual OM20/ OM30 RS485 with Modbus RTU | V1
2.3 Laser
CLASS 1 LASER
PRODUCT
IEC 60825-1/2014
Complies with 21 CFR 1040.10 and
1040.11 except for conformance with
IEC 60825-1 Ed. 3., as described in
Laser Notice No. 56, dated May 8, 2019
Products with the following type codes are specified according to laser class 1:
OM20-xxxxx.HH.xxx
OM30-xxxxx.HH.xxx
LASER RADIATION
DO NOT STARE INTO BEAM
Wavelength: 640...670nm
IEC 60825-1, Ed. 3, 2014
CLASS 2 LASER PRODUCT
Complies with 21 CFR 1040.10 and 1040.11
except for conformance with IEC 60825-1 Ed. 3.,
as described in Laser Notice No. 56, dated May 8, 2019
Products with the following type codes are specified according to laser class 2:
OM20-xxxxx.HV.xxx
OM30-xxxxx.HV.xxx
Baumer Description | 3
OM20/ OM30 RS485 with Modbus RTU | V1 Operating Manual 9
3 Description
3.1 Structure
2
1
3
4
5
OM20 OM30
2
3
1
4
5
Ill.2: Structure OM20/OM30
1 Sensor LEDs 2 Front panel
3 Teach button 4 M8 plug, 4-pin
5 Imprint of laser information & name plate
3.2 General functionality
The sensor measures the distance to an object to be measured by angle calculation (triangula-
tion principle). For this purpose, the sensor projects a laser point on the object to be measured.
This laser point is mapped on the receiver element by the receiving optics. The distance to the
object to be measured is calculated from the location of the image on the receiver element. The
measured distance is provided as a measured value via the following channels integrated in the
sensor:
nRS485 interface with Modbus RTU protocol
The following options are available to you for parameterizing the sensor:
nRS485 interface with Modbus RTU protocol
nTeach button on the sensor
3 | Description Baumer
10 Operating Manual OM20/ OM30 RS485 with Modbus RTU | V1
3.3 Measurement field
INFO
The data for your sensor version can be found in the data sheet.
CD
MR
Sdc
Sde
ZP
ZP Zero position CD Blind region
Sdc Start of the measurement range MR Measurement range
Sde End of the measurement range
Blind region (CD)
nRegion in which the sensor cannot detect any measurement objects.
nUnwanted objects (objects not to be measured) in this region may lead to deviations in the
measurement results.
Measuring range (MR)
nRegion in which the measurement object must be present for the sensor to deliver reliable
measurement results.
nUnwanted objects (objects not to be measured) in this region may lead to deviations in the
measurement results.
nThe limits of the measurement range (MR) are defined via the parameters Start of the mea-
surement range (Sdc) and End of the measurement range (Sde).
Zero position (ZP)
nIn the factory settings, the zero point is located on the front of the sensor (ZP=0mm). The
output consists of the distance between the front of the sensor and the object to be mea-
sured.
nThe following values depend on the zero position:
▪ Output measured values
▪ Switching points
nCapable of parameterization via:
▪ Modbus RTU
▪ Teach button
Andere Handbücher für OM20
2
Dieses Handbuch passt für folgende Modelle
17
Inhaltsverzeichnis
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