Baumer PosCon OXE7 User manual

Operating instructions.
PosCon OXE7 –Edge measurement in a new dimension.

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Contents
1General information......................................................................................................................4
1.1 Concerning the contents of this document .....................................................................................4
1.2 Intended use ...................................................................................................................................4
1.3 Comments, notes, and warnings ....................................................................................................4
2Commissioning in 4 steps ...........................................................................................................5
2.1 Connection......................................................................................................................................5
2.2 Installation.......................................................................................................................................6
2.3 Measuring mode .............................................................................................................................7
2.4 Measurement ................................................................................................................................10
2.5 Optional settings ...........................................................................................................................10
3Connection ..................................................................................................................................11
3.1 Connection cable ..........................................................................................................................11
3.2 Pin assignment and connection diagram......................................................................................12
4Installation ...................................................................................................................................13
4.1 Mounting .......................................................................................................................................13
4.2 Sensor reference levels ................................................................................................................13
4.3 The reference surface...................................................................................................................14
4.4 Sensor alignment..........................................................................................................................15
4.5 Standard installation .....................................................................................................................16
4.6 Angled installation.........................................................................................................................18
4.7 Practical zero point search ...........................................................................................................20
4.8 Installation accessories.................................................................................................................21
5Configuration via touch panel ...................................................................................................23
5.1 Overview of control elements .......................................................................................................23
5.2 Function tree .................................................................................................................................26
5.3 LIVE MONITOR ............................................................................................................................28
5.4 MEASUREMENT TYPE................................................................................................................29
5.5 EDGE HEIGHT / OBJECT HEIGHT / GAP DEPTH .....................................................................33
5.6 OBJECT........................................................................................................................................33
5.7 PRECISION ..................................................................................................................................33
5.8 FLEX MOUNT...............................................................................................................................34
5.9 MEASURING FIELD.....................................................................................................................38
5.10 DIGITAL OUT................................................................................................................................43
5.11 SYSTEM .......................................................................................................................................44
5.12 SETTING ......................................................................................................................................45
6Function and definition ..............................................................................................................47
6.1 Data sheet.....................................................................................................................................47
6.2 Dimensions ...................................................................................................................................52
6.3 Mode of operation .........................................................................................................................53
6.4 Object to be measured .................................................................................................................55
6.5Interfaces and outputs ..................................................................................................................57
6.6 Touch panel...................................................................................................................................65
6.7 Memory.........................................................................................................................................65
7Safety instructions and maintenance.......................................................................................66
7.1 General safety instructions ...........................................................................................................66
7.2 Sensor inscriptions .......................................................................................................................66

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7.3 Influence of ambient light..............................................................................................................68
7.4 Mechanical damage......................................................................................................................68
7.5 Cleaning the sensors ....................................................................................................................68
7.6 Disposal ........................................................................................................................................68
8Error correction and tips............................................................................................................69
8.1 Effects of deviations in the inclination angle .................................................................................69
8.2 The dependency of the measuring frequency ..............................................................................70
8.3 Error correction .............................................................................................................................72
9Revision history ..........................................................................................................................74

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1 General information
1.1 Concerning the contents of this document
This manual contains information about the installation and commissioning of Baumer PosCon OXE7 edge
sensors.
It is a supplement to the mounting instructions supplied with each sensor.
1.2 Intended use
The Baumer PosCon OXE7 sensor detects edges and outputs their position, distance, and center between
edges.
It was especially developed for easy handling, flexible use, and precise measurement. The red light laser
ensures that the light beam is always visible, which makes sensor alignment easier and minimizes installation
errors. The sensor operates without a reflector.
1.3 Comments, notes, and warnings
NOTE
Provides helpful operation instructions or other general recommendations.
ATTENTION!
Indicates a possibly hazardous situation. If it is not avoided, minor or slight injuries
can occur or the device can be damaged.
Read these operating instructions carefully and follow the safety instructions!

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2 Commissioning in 4 steps
After the sensor is connected and installed, configure it via the display, selecting either the "Edge", "Width" or
"Gap" function and performing the other application-specific settings/measurement type within these
functions. The sensor is then ready for operation and outputs the measuring value in mm to the screen.
Optionally, the measuring field can be limited or the switching output can be configured.
Connection
Installation
Function Edge
Function Width
Function Gap
Let's get started
Optional: Measuring field limitation
Optional: Switching output
2.1 Connection
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 and the display lights up.
Key functions
ESC = Back
ESC 2 sec. = Main menu
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
1
1
2
3
4
5
6

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2.2 Installation
Standard installation
In standard installation, the sensor is mounted at a
right angle to the reference surface or the object. The
sensor is not taught into the reference surface so
configuration is very easy and straightforward.
This installation method is recommended even if the
reference surface cannot be taught in for some
reason or another.
Angled installation
In angled installation, the sensor can be mounted
at an angle of up to +/- 30° in relation to the
reference surface. This installation method is used
when space conditions do not allow any other
installation option or the mounting angle is not
known.
Align the sensor as accurately as possible at a right
angle to the reference surface (background) or to the
object (if there is no reference surface in the
measuring field). The object must be within the
measuring field, i.e. the distance from the sensor
must be between the start of the measuring range
Sdc and the end of the measuring range Sde. The
reference surface can lie outside of the
measurement field or can be non-existent, this
situation is reffered to as ege-to-infinity.
The sensor may be mounted at an angle inclined
maximally 30° to the left or to the right of the
reference surface (background) or to the object (if
there is no reference surface in the measuring
field).
Reference surface (background) and object must
be within the measuring field.
2
NOTE
The "Edge L rise or Edge R rise" mode can be used as an aid to find the zero point.
Now an object is slowly pushed toward the presumed zero point. The zero point is
reached by the rising edge of the object when the value 0 mm is shown on the sensor
display and the yellow LED switches.
0 mm
Reference point
Measuring field
width right
Measuring field
width left
Right
Left
Blind region
Start of measuring
range Sdc
MEASURING
FIELD
0 mm
Reference
point
Right
Left
0 mm
MEASURING
FIELD
+/-30°
Reference surface
Measuring field
width left
Measuring field
width right
Blind region
End of measuring
range Sde

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2.3 Measuring mode
Edge: Edge position (basic setting)
To perform edge measurement, select FUNCTION
"EDGE" in the menu. Within EDGE the edge to be
measured is defined in MEASUREMENT TYPE.
EDGE L RISE = First rising edge from the left
EDGE L FALL = First falling edge from the left
EDGE R RISE = First rising edge from the right
EDGE R FALL = First falling edge from the right
EDGE L RISE EDGE L FALL
EDGE R RISE EDGE R FALL
EDGE HEIGHT
Minimum height to be detected as an edge.
OBJECT
Selection of light or dark objects to optimize the
measurement results.
PRECISION
For more reliable measurement results, the output
values can be filtered with High and Very High.
FLEX MOUNT
If the sensor is mounted at an angle, FLEX
MOUNT must be activated and the reference
surface must be taught in.
1. Activate FLEX MOUNT
2. Align and confirm sensor or reference
surface
3. When all conditions are met (see table on
right), confirm by pressing Set for 2 seconds
4. Enter thickness of the auxiliary plate (if
present)
Distance between sensor and
reference surface
Installation angle too large
Reference surface too uneven
Reference surface too small
(<50 mm)
3a
Min. edge height
Object
Reference
surface

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WIDTH: Width measurement
To perform width measurement, select FUNCTION
"WIDTH" in the menu. In WIDTH the desired output is
selected in the MEAS TYPE menu.
OBJECT WIDTH = Distance between the first rising
flank from the left and the first
rising flank from the right.
OBJECT CENTER = Center between the first
rising flank from the left and the
first rising flank from the right in
relation to the measuring axis of
the sensor.
OBJECT WIDTH OBJECT CENTER
OBJECT HEIGHT
Minimum height of the object to be measured.
OBJECT
Selection of light or dark objects to optimize the
measurement results.
PRECISION
For more reliable measurement results, the output values
can be filtered with High and Very High.
FLEX MOUNT
If the sensor is mounted at an angle, FLEX MOUNT must
be activated and the reference surface must be taught in.
1. Activate FLEX MOUNT
2. Align and confirm sensor or reference surface
3. When all conditions are met (see table on right),
confirm by pressing Set for 2 seconds
4. Enter thickness of the auxiliary plate (if present)
Distance between sensor
and reference surface
Installation angle too
large
Reference surface too
uneven
Reference surface too
small (<50 mm)
3b
Min. object height
Object
Reference
surface

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GAP: Gap measurement
To perform gap measurement, select FUNCTION "GAP"
in the menu. In GAP the measurement type to be
activated is defined in the MEAS TYPE menu.
GAP WIDTH = Distance between the first falling
flank from the left and the first
falling edge from the right.
GAP CENTER = Center between the first falling
flank from the left and the first
falling flank from the right in relation to the
measuring axis of the sensor.
GAP WIDTH GAP CENTER
GAP DEPTH
Minimum gap depth to be detected as an edge.
OBJECT
Selection of light or dark objects to optimize the
measurement results.
PRECISION
For more reliable measurement results, the output values
can be filtered with High and Very High.
FLEX MOUNT
If the sensor is mounted at an angle, FLEX MOUNT must
be activated and the reference surface must be taught in.
1. Activate FLEX MOUNT
2. Align and confirm sensor or reference surface
3. When all conditions are met (see table on right),
confirm by pressing Set for 2 seconds
4. Enter thickness of the auxiliary plate (if present)
Distance sensor reference
surface too large
Installation angle too large
Reference surface too
uneven
Reference surface too
small (<50 mm)
Min. gap depth
Object
Reference
surface
3c

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2.4 Measurement
2.5 Optional settings
Let's get started
The sensor continuously outputs the
measuring value in mm to the display and
transmits it via the analog output to the
control. Alternatively, the measuring value
can also be retrieved from the RS485
interface.
Measuring field limitation (optional)
The measuring field can be changed via the
MEASURING FIELD function. This function
is required when there are objects in the
measuring field which should not be
detected.
- AUTO for limitation with a rectangle
of automatic size
- Separate configuration of the single
points of the field
LIMIT L, LIMIT RIGHT, OFFSET
Switching output (optional)
The sensor is equipped with a switching
output that can be configured as a threshold
or as a window via the DIGITAL OUT
function.
4
5a
5b
Right
Left
OFFSET
LIMIT R
LIMIT L
Right
Left
Right
Left
Point
Window

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3 Connection
3.1 Connection cable
An 8-pole, shielded connection cable (connector) is required.
Baumer connection cables with the following order codes are recommended:
10127844 ESG 34FH0200G (length 2 m, straight plug)
11053961 ESW 33FH0200G (length 2 m, angled plug)
10129333 ESG 34FH1000G (length10 m, straight plug)
10170054 ESW 33FH1000G (length 10 m, angled plug)
Other cable lengths are available.
When the analog output is used, the cable length affects signal noise. Signal noise increases the longer the
connection cable is.
Analog output I_OUT
Noise: 5.92 µA (1 sigma) (10m cable and 680 Ohm)
3.59 µA (1 sigma) (2m cable and 680 Ohm)
Analog output U_OUT
Noise: 4.80 mV (1 sigma) (10m cable and 100 kOhm)
3.03 mV (1 sigma) (2m cable and 100 kOhm)
We recommend that you use RS485 for high-precision applications.
ATTENTION!
Laser class 1 laser beam according to EN 60825-1:2014. This product can be
operated safely without any additional safety precautions. Nevertheless direct
contact between the eye and beam should be avoided.
ATTENTION!
The IP protection class is valid only if all connections are connected as
described in the technical documentation.
ATTENTION!
Connection, installation and commissioning may only be performed by qualified
personnel.
ATTENTION!
Incorrect supply voltage will destroy the device!

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3.2 Pin assignment and connection diagram
Color
Function
Description
Pin 1
WH = white
Rx/Tx-
RS 485 receive/transmit- (B)
Pin 2
BN = brown
+ Vs
Voltage supply (+15…+28 VDC)
Pin 3
GN = green
analog
Analog output (4…20 mA or 0…10V)
Pin 4
YE = yellow
out
Switching output, push-pull
Pin 5
GY = gray
alarm
Alarm output, push-pull
Pin 6
PK = pink
Rx/Tx+
RS485 receive/transmit+ (A)
Pin 7
BU = blue
0V
Ground GND
Pin 8
RD = red
sync in
Input synchronization
NOTE
We recommend that you connect unused cables to GND (0V).

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4 Installation
4.1 Mounting
The sensor has four mounting holes for flexible alignment and mounting. The use of 2 M4x35 screws is
recommended for mounting. The tightening torque is max. 1.2 Nm.
4.2 Sensor reference levels
To ensure easy alignment of the sensor during installation, the surfaces defined here are available:
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. "Left" and "Right" designations
are also important.
19 mm
Level R3
Laser
beam
Level R1
Level R2
13 mm
Tightening torque
max. = 1.2 Nm
ATTENTION!
Connection, installation and commissioning may only be performed by qualified
personnel. Protect optical surfaces from moisture and dirt.
Left
Right

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4.3 The reference surface
The measuring level where the object to be detected is located is referred to as the reference surface. It
should be as even as possible; there must not be any edges in the measuring field which should not be
detected (for exceptions see Section MEASURING FIELD).
If there is no reference surface as a measuring level, the sensor should be aligned to the object.
If the PosCon OXE7 sensor cannot be aligned at a right angle to the reference surface, the FLEX MOUNT
function should be activated.
Reference surface
Object
Object axis
NOTE
The reference surface…
can be within the measuring field (but doesn't have to be)
must not have any edges in the sensor measuring range
should be as even as possible
can be taught in using the FLEX MOUNT function

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4.4 Sensor alignment
As standard the sensor is mounted at a right angle (90°) to the reference surface or the object (standard
installation), but it can also be mounted at an angle of up to 30° (angled installation).
To get the most accurate measurements possible in angled installation, the inclination angle of the sensor has
to be taught in, see Section FLEX MOUNT.
The distance from the reference surface or the object must not exceed the "End of measuring range" value on
the measuring axis.
Note
Angle deviations can affect measuring accuracy (see Section Alignment errors).
Tip
To facilitate sensor alignment, LIVE MONITOR monitor can be used as an aid.
LIVE MONITOR continuously outputs the currently measured angle and the
distance from the reference surface.

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4.5 Standard installation
In standard installation, the sensor is mounted at a right angle (90°) to the reference surface or the object
(when there is no reference surface).
On reference level on object

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4.5.1 Definition of the measuring field with standard installation
The important terms "Left" and "Right" are to be regarded respectively from the viewpoint of the plug.
0 mm
Measuring field
width right
End of measuring
range Sde
Measuring
field
X
Z
Measuring field
width left
Blind region
Reference
point
NOTE
For further explanations, see
Section "Function and definition“ -
> "Interfaces and output-> "Analog
signal output".
Right
Left
Measuring axis
R2
Start of
measuring range
Sdc
Outside measuring range
Measuring range
Measuring field
width

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4.5.2 Blind region
The region up to the start of measuring range Sdc is called the blind region, i.e. the sensor cannot detect any
objects there.
Nevertheless, placing an object there should be avoided since the resulting shadowing of objects could
produce incorrect measuring values.
4.6 Angled installation
Compared to standard installation, the sensor can be mounted at an arbitrary inclination angle up to ±30°.
This is particularly useful when space conditions do not allow any other installation option. See Section FLEX
MOUNT.
The object must be within the measuring field.
0 … -30°
+30 … 0°
Reference surface
K
M
Measuring
range
Measuring
field
Blind region
Object
Start of measuring range
Sdc
End of measuring range
Sde

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4.6.1 Definition of the measuring field with angled installation
At the maximum allowable inclination angle of ±30°, the sensor measures objects and edges within the
measuring field defined below. The important terms "left" and "right" are to be regarded respectively from the
viewpoint of the sensor, and in the following figures from the viewpoint of the connector side of the sensor.
After activation of the FLEX MOUNT function, the sensor axis is no longer relevant. The measurement
coordinate system is now represented by the M and K axes. The measurement value is now the distance on
an edge to the M axis.
0 mm
0 mm
0 mm
End of
measuring
range Sde
K
M
Measuring
field
0 mm
K
M
Measuring
field
K
M
Measuring
field
K
M
Measuring
field
Example with 15° inclination
angle
Example with 10° inclination
angle
Example with -30° inclination
angle
Example with -20° inclination angle
Blind region
Blind region
Blind region
Blind region
Reference
point
Reference
point
Reference
point
Reference
point
Right
Left
Right
Left
Right
Left
Right
Left
End of
measuring
range Sde
End of
measuring
range Sde
End of
measuring
range Sde

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4.6.2 For weak reflection
If the object is a weak reflector there are several things that can tried to improve the detection::
use the object dark mode, this increases the exposure time
Modify the mounting angle, as shown below, this reduces the angle between emitted laser light and
the acceptance angle of the detector. This is recommended for diffuse weak reflectors.
Change the search direction of an edge to go from the background (or reference plane) to the object.
Define a measurement field (using the offset and limit function) that only contains the minimal area of
interest around the sensor, this leads the sensor to ignore unwanted reflections
4.6.3 To avoid direct reflection
If there is a risk for a direct/specular reflection that can saturate the camera image, it is recommended to tilt
the sensor, so that the direct reflection from the laser light cannot hit the camera. This is illustrated in the
image below. The left situation shows the standard mounting procedure, while the right illustration shows the
mounting to avoid direct reflections from the laser into the camera.
4.7 Practical zero point search
In case of angled installation, the zero point (0 mm) of the K axis shifts out of the center of the red visible laser
line.
NOTE
The "Edge L rise or Edge R rise" mode, for example, can be used as an aid to find
the zero point. Now an object is slowly pushed toward the presumed zero point.
The zero point is reached by the left rising edge of the object when the value 0 mm
is shown on the sensor display and the yellow LED switches.