Baumer OM70 User manual

Operating instructions.
OM70 laser point / laser line distance
sensors

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Contents
1 General information......................................................................................................................3
1.1 Concerning the contents of this document.....................................................................................3
1.2 Intended use...................................................................................................................................3
1.3 Safety..............................................................................................................................................4
2 Quick start-up guide.....................................................................................................................5
3 Mounting and connections..........................................................................................................7
3.1 Dimensions.....................................................................................................................................7
3.1 Sensor reference levels..................................................................................................................8
3.2 Definition of the measuring range...................................................................................................9
3.3 Mounting.......................................................................................................................................12
3.4 Alignment......................................................................................................................................13
3.5 Connection....................................................................................................................................16
4 Configuration ..............................................................................................................................18
4.1 Overview of control elements .......................................................................................................18
4.2 Function tree.................................................................................................................................21
4.3 LIVE MONITOR............................................................................................................................22
4.4 PRECISION..................................................................................................................................23
4.5 ANALOG OUT ..............................................................................................................................25
4.6 DIGITAL OUT................................................................................................................................28
4.7 SYSTEM.......................................................................................................................................32
4.8 SETTING ......................................................................................................................................35
4.9 Configuration using the RS-485 interface.....................................................................................36
5 Operation.....................................................................................................................................37
5.1 Measuring frequency, measuring repeat time and response time................................................37
5.2 Alarm output..................................................................................................................................37
5.3 Influence of ambient light..............................................................................................................38
5.4 Focus distance and optimal measuring distance..........................................................................38
5.5 Error correction and tips ...............................................................................................................40
6 Safety instructions and maintenance.......................................................................................41
6.1 General safety instructions...........................................................................................................41
6.2 Sensor inscriptions .......................................................................................................................42
6.3 Front optic.....................................................................................................................................43
6.4 Cleaning the sensors....................................................................................................................43
6.5 Disposal........................................................................................................................................43
7 Sensor data sheet.......................................................................................................................44
7.1 Measuring range types 30…70 mm .............................................................................................44
7.1 Measuring range types 40…140 mm ...........................................................................................47
7.1 Measuring range types 50…250 mm ...........................................................................................50
7.2 Measuring range types 100…600 mm .........................................................................................54
7.1 Measuring range types 100…1000 mm .......................................................................................57
7.2 Measuring range types 150…1500 mm .......................................................................................60
8 Revision history..........................................................................................................................63

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1 General information
1.1 Concerning the contents of this document
This manual contains information about the installation and initial setup of Baumer OM70 laser point / laser
line sensors.
It is a supplement to the mounting instructions supplied with each sensor.
1.2 Intended use
The Baumer OM70 laser point / laser line sensor measures distances to objects. It was specially developed
for easy handling, flexible use, and highly accurate measurement.
1.2.1 Functional principle of triangulation
In the triangulation principle, the sensor transmits a light point or light beam to the object to be measured, and
the reflected light strikes a receiver line in the sensor at a special angle. Depending on the distance, the angle
of incidence changes and thus so does the position of the light spot or light beam on the receiver. The micro-
controller allows the suppression of interfering reflections, thus providing reliable data even on critical
surfaces.
Read these operating instructions carefully and follow the safety instructions!
Near
Far

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1.2.2 Laser point or laser line
OM70 laser point OM70 laser line
For small objects, if accurate positioning of the laser
point is important, or for sharp transitions, a sensor
with a laser point is suitable.
Stable measurements on rough surfaces and
textured color surfaces thanks to a fine laser line < 10
mm
1.3 Safety
NOTE
Provides helpful operation instructions or other general recommendations.
ATTENTION!
Indicates a potentially hazardous situation. Avoid these situations in order to
prevent any personal injury or damage to the device.

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2 Quick start-up guide
After connection and installation, the sensor is configured using the display. The sensor is then ready for
operation and shows the measured value in mm on the screen. Optionally, the analog output can also be
limited or the switching output configured.
Connection
Installation
Application-specific settings
Let's get started
Connection
Connect the sensor according to the connection
diagram. A shielded connection cable (8-pole M12)
must be used.
When everything is correctly connected, the sensor
starts up.
Key functions
ESC = Back
ESC 2 sec. = Run mode
UP = Up/increase value
DOWN = Down/decrease value
SET = OK
SET 2 sec. = Save value
Slide over all 4 keys:
----> = Enables the panel if locked
<---- = Jump to run mode
Setting the language
The language is selected and confirmed by pressing
SET for 2 seconds.
English
Deutsch
Italiano
Français
Z Z
Z Z
alarm
0V
analog
out
Rx/Tx+
Rx/Tx-
(8)
(7)
+Vs
RD
(2)
(4)
(5)
(6)
BN
YE
GY
PK
BU sync in
(1)WH
(3)
GN
push-
pull
RS485
7
6
12
54
3
8
1
1
2
4
LANGUAGE
English
3

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Installation
For standard applications, the sensor is mounted and
aligned at right angles to the measuring axis. See
Alignment Chapter.
The object must be within the measuring range Mr,
i.e. between the start of the measuring range Sdc,
and the end of the measuring range Sde.
Application-specific settings
The sensor indicates the distance to the object,
measured from the front surface.
Precision (filter)
To achieve better resolution, it is possible to
alternate between Standard, High, Very High and
Highest by filtering the output values.
Analog Out
With SCALE OUT, the start of measuring range Sdc
and the end of measuring range Sde can be
changed, thus optimizing resolution and linearity of
the analog output. 0V or 4 mA apply for the start of
measuring range Sdc, and 10V or 20 mA apply for
the point at the end of measuring range Sde. The
voltage or current output is also selected under
ANALOG OUT. The characteristic curve can also be
inverted under CHARACTERISTIC.
Digital output (switching point)
The sensor is equipped with a switching output that
can be configured either as a THRESHOLD or as a
WINDOW using the DIGITAL OUT function.
Threshold: As soon as the measured value exceeds
the specified threshold, the switching output is
switched.
Window: As soon as the measured value is outside
the specified window, the switching output is
switched. The output level can also be inverted and
the hysteresis set here.
Let's get started
The sensor continuously shows the measured value in mm on the display and transmits it to the controller
through the analog output. Alternatively, the measuring value can also be retrieved from the RS-485
interface.
LIVE MONITOR
PRECISON Standard
High
Very High
Highest
ANALOG OUT SCALE OUT DIST NEAR
DIST FAR
SET MAXVALUES
ANALOG OUT Current / Voltage
CHARACTERISTIC Pos. slope / Neg. slope
DIGITAL OUT DIGITAL OUT Point / Window
SWITCH POINT Value in mm
WINDOW P1 Value in mm
WINDOW P2 Value in mm
OUTPUT LEVEL Active high / Active low
HYSTERESIS Value in mm
2
4
3
Blind region
End of
measuring range
Sde
Sensor reference
point
Start of
measuring range
Sdc
Object
Measuring range
Mr
Distance in mm /
mA / V
Switching point
(optional)

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3 Mounting and connections
3.1 Dimensions
*Optical axis
574
85
26
M12 x 1
7
64
9
9
50
4,5 2
55
LED
4,3
19
14
ATTENTION!
Connection, installation and commissioning may only be performed by qualified
personnel. Protect optical surfaces from moisture and dirt.

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3.1 Sensor reference levels
The sensor can be aligned by the following surfaces:
The laser beam of the sensor runs parallel ( // ) to level R3 and is at a right angle to levels R1 and R2 Levels
R1, R2, and R3 serve as a reference for sensor alignment during installation
19 mm
Level R3
Laser
beam
Level R1
Level R2 13 mm
50.5 mm

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3.2 Definition of the measuring range
The sensor measures distances within the measuring range The important definitions are described in the
following figure The reference level R2 applies as a reference for 0
3.2.1 Blind region
The area from the reference level R2 up to the start of measuring range Sdc is called the blind region, the
sensor cannot detect any objects there
If there are any objects in this region, this can lead to incorrect measured values
NOTE
See chapter ANALOG OUT for further information on the analog output.
Measuring range Mr
End of measuring
range Sde
Start of measuring
range Sdc
R2
Object
Blind region

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3.2.2 Transmitter and receiver axis
The transmitter and receiver axes must not be covered by obstacles, since this could adversely affect precise
measurements
laser beam
Measuring range Mr
Receiver axis:
Prohibited area for
obstacles
End of measuring
range Sde
Start of measuring
range Sdc
19 mm L1 L2
13 mm
Prohibited area for
obstacles
Receiver: Width 14 mm
around the central axis
of the sensor
Max. laser beam diameter (see
data sheet)
Transmitter axis
Dimensions L1 and L2, see
receiver position according to
Sensor Data Sheet chapter.
14 mm