Baumer PosCon3D Operating Instructions Manual

Contents
1
1.1
1.2
1.3
2
2.1
2.2
2.3
2.4
2.5
3
3.1
3.2
4
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
General information ...................................................................................................................... 4
Concerning the contents of this document ..................................................................................... 4
Intended use ................................................................................................................................... 4
Safety notes .................................................................................................................................... 4
Commissioning in 4 steps ........................................................................................................... 5
Connection ...................................................................................................................................... 5
Installation ....................................................................................................................................... 6
Measuring mode ............................................................................................................................. 7
Measurement ................................................................................................................................ 10
Optional settings ........................................................................................................................... 10
Connection .................................................................................................................................. 11
Connection cable .......................................................................................................................... 11
Pin assignment and connection diagram ...................................................................................... 12
Installation ................................................................................................................................... 13
Mounting ....................................................................................................................................... 13
Sensor reference levels ................................................................................................................ 13
The reference surface ................................................................................................................... 14
Sensor alignment .......................................................................................................................... 15
Standard installation ..................................................................................................................... 16
Angled installation ......................................................................................................................... 18
Blind region ................................................................................................................................... 19
Practical zero point search ........................................................................................................... 20
Installation accessories ................................................................................................................. 20
5
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
7
7.1
Configuration via touch panel ................................................................................................... 22
Overview of control elements ....................................................................................................... 22
Function tree ................................................................................................................................. 25
LIVE MONITOR ............................................................................................................................ 27
MEAS TYPE ................................................................................................................................. 28
EDGE HEIGHT / OBJECT HEIGHT / GAP DEPTH ..................................................................... 32
OBJECT ........................................................................................................................................ 32
PRECISION .................................................................................................................................. 32
FLEX MOUNT ............................................................................................................................... 34
FIELD OF VIEW ........................................................................................................................... 38
DIGITAL OUT ................................................................................................................................ 43
SYSTEM ....................................................................................................................................... 44
SETTINGS .................................................................................................................................... 45
Function and definition .............................................................................................................. 47
Datasheet...................................................................................................................................... 47
Dimensions ................................................................................................................................... 49
Functional principle ....................................................................................................................... 50
Object to be measured ................................................................................................................. 52
Interfaces and outputs .................................................................................................................. 54
Touch panel................................................................................................................................... 58
Memory ......................................................................................................................................... 58
Safety instructions and maintenance ....................................................................................... 59
General safety instructions ........................................................................................................... 59
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7.2
7.3
7.4
7.5
8
8.1
8.2
9
Laser class .................................................................................................................................... 59
Influence of ambient light .............................................................................................................. 59
Front (optics) ................................................................................................................................. 59
Cleaning the sensors .................................................................................................................... 60
Error correction and tips ............................................................................................................ 60
Effects of deviations in the inclination angle ................................................................................. 60
Error correction ............................................................................................................................. 61
Change 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 commissioning of Baumer PosCon 3D edge sensors. Article number 11111452, article name: OXE7.E25T-11111452 It is a supplement to the mounting instructions supplied with each sensor.
1.2 Intended use
The Baumer PosCon 3D 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.
Read these operating instructions carefully and follow the safety instructions!
1.3 Safety notes
NOTE
Provides helpful operating 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.
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2 Commissioning in 4 steps
Key functions
1
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. Afterward the sensor is 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.
1
2
3 4
5
6
Function Edge Function Width Function Gap
2.1 Connection
Optional: Measuring field limitation
Optional: Switching output
Connection
Installation
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 and the display lights up.
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 will be selected and confirmed by pressing SET for 2 seconds.
English Deutsch Italiano Français
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2.2 Installation
Standard installation
Angled installation
2
0 mm
right left
150 mm
<100 mm
0 mm
right
0 mm
150 mm
+/-30°
<100 mm
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.
Measuring
field
-62.5 mm @250 mm
+62.5 mm @250 mm
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 150 and 250 mm.
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 left rising edge of the object when the value 0 mm is shown on the sensor display and the yellow LED switches..
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.
Measuring
field
-73.0 mm @250 mm
+54.6 mm @250 mm
Reference surface
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). The reference surface (background) or the object must be within the measuring field, i.e. the distance from the sensor must be between 150 and 250 mm.
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2.3 Measuring mode
EDGE: Edge (basic setting)
EDGE HEIGHT
3a
Min. edge height
Object
Reference
To perform edge measurement, select FUNCTION EDGE in the menu. Within EDGE the edge to be measured is defined in MEAS 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
Minimum height to be detected as an edge.
OBJECT
Selection of light or dark objects to optimize the measurement results.
PRECISION
To achieve better precision and resolution, it is possible to alternate between Standard, High and Very High by filtering the output values.
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)
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WIDTH: Width measurement
OBJECT HEIGHT
3b
Min. object height
Object
Reference
To perform width measurement, select FUNCTION WIDTH in the menu. In WIDTH the desired output is selected in the MEAS TYPE menu.
WIDTH = Distance between the first rising
flank from the left and the first rising flank from the right.
CENTER WIDTH = Center between the first rising
flank from the left and the first rising flank from right in relation to the measuring axis of the sensor.
Minimum height of the object to be measured.
OBJECT
Selection of light or dark objects to optimize the measurement results.
PRECISION
To achieve better precision and resolution, it is possible to alternate between Standard, High and Very high by filtering the output values.
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)
WIDTH CENTER WIDTH
Distance between sensor and reference surface too long Installation angle too large Reference surface too uneven Reference surface too small (<50 mm)
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GAP: Gap
measurement
GAP DEPTH
3c
Min. gap depth
Object
Reference
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 = Distance between the first
falling flank from the left and the first falling edge from the right.
CENTER GAP = Center between the first falling
flank from the left and the first falling flank from right in relation to the measuring axis of the sensor.
Minimum gap depth to be detected as an edge.
OBJECT
Selection of light or dark objects to optimize the measurement results.
PRECISION
To achieve better precision and resolution, it is possible to alternate between Standard, High and Very high by filtering the output values.
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)
GAP CENTER GAP
Distance between sensor and reference surface Installation angle too large
Reference surface too uneven Reference surface too small (<50 mm)
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2.4 Measurement
Measuring field limitation
Switching output
Let's get started
4
5a
5b
LIMIT LEFT
LIMIT RIGHT
OFFSET
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.
2.5 Optional settings
(optional) The measuring field can be changed via the FIELD OF VIEW 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 LEFT, LIMIT RIGHT, OFFSET
(optional) The sensor is equipped with a switching output that can be configured as a point or as a window via the DIGITAL OUTPUT function.
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Left Right
Point Window
Left Right
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3 Connection
contact
between the eye and beam should be avoided.
ATTENTION!
Incorrect supply voltage will destroy the device!
ATTENTION!
Connection, installation and commissioning may only be performed by qualified personnel.
ATTENTION!
The IP protection class is valid only if all connections are connected as described in the technical documentation.
ATTENTION!
Laser class 1 laser beam according to EN 60825-1:2007. This product can be operated safely without any additional safety precautions. Nevertheless direct
3.1 Connection cable
An 8-pole, shielded connection cable (connector) is required. Baumer connection cables with the following order codes are recommended:
ESG 34FH0200G (length 2 m, straight plug)
ESW 33FH0200G (length 2 m, angled plug)
Other cable lengths are available.
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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 Pin 3 Pin 4 Pin 5 GY = gray alarm Alarm-out, push-pull Pin 6 Pin 7 Pin 8
BN = brown + Vs Voltage supply (+15…+28 VDC) GN = green analog Output analog (4…20 mA or 0…10V) YE = yellow out Switch-out, push-pull
PK = pink Rx/Tx+ RS485 receive/transmit+ (A) BU = blue 0V Ground GND RD = red sync in Input synchronization
NOTE
It is recommended to connect unused inputs to GND (0V).
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4 Installation
ATTENTION!
Connection, installation and commissioning may only be performed by qualified personnel. Protect optical surfaces from moisture and dirt.
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. The terms "Left" and "Right" are also important here. Also important are the terms "Left" and "Right".
19 mm
Level R2
13 mm
Left Right
Laser beam
Level R3
Level R1
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4.3 The reference surface
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 no reference surface is available as a measuring level (next background/edge > 250 mm away from sensor level R2), the sensor should be aligned to the object.
If the PosCon 3D sensor cannot be aligned at a right angle to the reference surface, the FLEX MOUNT function should be activated.
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 with 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 measurement results 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 250 mm on the measuring axis.
NOTE
Angle deviations can affect measuring accuracy (see Section Alignment errors).
NOTE
To facilitate sensor alignment, the LIVE 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).
To Reference Surface To Object
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4.5.1 Definition of the measuring field with standard installation
axis
The important terms "Left" and "Right" are to be regarded respectively from the viewpoint of the connector.
The sensor measures objects and edges at a distance of 150 … 250 mm (z axis)
Left
Right
and in the measuring range (x axis) from
-62.5 mm to +62.5 mm (at a distance of 250 mm). The object must be within the measuring field, i.e. the distance must not exceed 250 mm, but it can also be smaller.
Blind region
-37.5 mm
Reference
-62.5 mm
5.75 mA / 1.87 V
Measuring
Measuring field
Z
X
0 mm
12 mA / 5 V
+37.5 mm
100 mm
+62.5 mm
18.25 mA / 8.12 V
Note
On the analog output:
250 mm
0 mm
For further explanations, see Section "Function and definition“ ­> "Interfaces and outputs" -> "Analog signal output".
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4.6 Angled installation
0 mm
250 mm
K
M
0 mm
K
field
K
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 also Section FLEX MOUNT. The object must be within the measuring field.
+30…0°
0…-30°
M
Reference surface
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 connector side of the sensor. After activating the FLEX MOUNT function the axes M and K now represent the
measurement coordinate system and no longer the sensor axis. The measured value is now the distance from one object-edge to the M-axis.
Example with -30° inclination
Example with -20° inclination angle
Blind region
Measuring
0 mm
field
M
-73.0 mm Reference point Reference point
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+54.6 mm
0 mm
-68.8 mm
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250 mm
Blind region
Measuring
+57.3 mm
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0 mm
0 mm
250 mm
K
M
K
field
Example with -15° inclination
Example with -10° inclination
Blind region
Measuring
250 mm
Blind region
Measuring
field
0 mm
-67.0 mm Reference point
M
+58.6 mm
0 mm
-65.4 mm Reference point
+59.9 mm
4.7 Blind region
The 0 … 150 mm range (distance from the sensor) is the blind region, i.e. the sensor cannot detect any edges there. Nevertheless the placement of objects there should be avoided because the shadowing of objects can create a fictitious edge which is detected by the sensor and results in the output of an incorrect measuring value.
Blind region
250 mm
100 mm
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4.8 Practical zero point search
NOTE
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.
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 left rising edge of the object when the value 0 mm is shown on the sensor display and the yellow LED switches.
4.9 Installation accessories
To ensure optimal mounting, various mounting brackets are available an as accessory. These brackets fit the mounting holes of the sensor exactly. The sensor can be shifted and adjusted inside the mounting hole.
4.9.1 Mounting kit for standard installation Order no. 11120705
With the mounting bracket for standard installation, the sensor can be mounted quickly and easily at a 90° angle to the reference surface.
Mounting kit 11120705
Contents of this set:
- 90° mounting bracket
- Threaded plate
- 2x spherical head screw M4x35
- 1x Torx tool T20
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4.9.2 Mounting kit for ±30° angled installation with horizontal mounting Order no. 11126836
If it is not possible to position the sensor at a right angle to the reference surface, the sensor can be mounted at an inclination angle of ±30° with this mounting kit.
Mounting kit 11126836
Contents of this set:
- 30° mounting bracket, horizontal
- Threaded plate
- 2x spherical head screw M4x35
- 1x Torx tool T20
4.9.3 Mounting kit for ±30° angled installation with vertical mounting Order no. 11126837
If it is not possible to the position the sensor at a right angle to the reference surface, the sensor can be mounted at an inclination angle of ±30° with this mounting kit.
Mounting kit 11126837
Contents of this set:
- 30° mounting bracket, vertical
- Threaded plate
- 2x spherical head screw M4x35
- 1x Torx tool T20
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5 Configuration via touch panel
display
5.1 Overview of control elements
LEDs
Graphical
ESC
UP DOWN
SET
5.1.1 Display modes Run mode
The sensor is in run mode, the measuring value is displayed in large characters.
Main menu
In the main menu the active measuring type is displayed at the top, and the measuring value is displayed at the bottom.
Scroll bar
The square indicates the position within the current menu. The next menu item can be accessed using the arrow keys.
Change value
If the function/mode at the top is displayed on a black background, the value of the bottom line can be adjusted using the UP/DOWN keys and saved using SET.
Process successful
The display background lights up green: value successfully saved
Error
The display background lights up red: Error during the save process or wrong value entered.
Touch panel: Four touch-sensitive keys
Setting mode
FLEX MOUNT active
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When the sensor is in setting mode, the display backlight lights up blue.
Keys locked
If this symbol is on the left side of the screen, the four keys are locked for operation.
When FLEX MOUNT is activated, this angle symbol appears on the left side of the screen.
Rectangle field active
This symbol appears on the left side of the screen when the measuring field is rectangular (AUTO).
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5.1.2 Functions of the individual keys
Key Pressed briefly Pressed >2 s.
ESC Back Jump to main menu UP Up/increase value DOWN Down/decrease value SET OK Save value* *Only in the setting menu when the top line is displayed on a black background (change value)
5.1.3 Locking the touch panel
The keys on the control panel are locked when they are not pressed for 5 minutes. A key symbol appears, and the measuring value is displayed in large lettering.
When it is pressed, the following text appears:
To re-enable the touch panel, it is required to quickly slide a finger over all four keys from left to right (slide over ESC, UP, DOWN, and SET).
When controlled via RS-485:
When the sensor is controlled via RS-485, it cannot be operated via the display at the same time; the keys are deactivated. When the keys are pressed, the following text appears on the display:
RS-485 controls the sensor
Locking via RS-485 command:
The sensor keys can be locked with a RS-485 command. This locking remains activated even if the senor is no longer controlled via RS-485. The keys must be unlocked with a RS-485 command. When the locked keys are touched, the following text appears on the display:
RS-485 locked the touch keys
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5.1.4 Further key functions
Action
Reaction
Unlock locked touch panel
Jump
directly to run mode
out1 activated
out2 activated
Insufficient excess gain
Supply voltage
Short circuit
Slide over all keys from left to right
Only if touch panel is locked
Slide over all keys from right to left
Can be used from any menu
5.1.5 LEDs on the sensor
LED Lights up Flashes Yellow
-
Adjustable switching output1 activated
Rot
Alarm or error. Object to be measured outside measuring range or invalid
Object just under the measuring range limit or insufficient received signal (e.g. soiling)
received signal (e.g. soiling)
Green
Sensor ready for operation
Check connection
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5.2 Function tree
The menu that can be accessed via the touch panel is shown below.
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5.3 LIVE MONITOR
NOTE
The installation conditions can be checked using the LIVE MONITOR. The sensor continuously measures the angle and the distance from the optical axis to the measuring level and outputs the values. This makes installation much easier and also points out installation errors.
LIVE MONITOR
15.7° 220mm
Measured angle in ° to the reference surface
Distance to the reference surface
Left
Angle
Right
Distance
An angle of 0° means that the sensor is at a right angle to the reference surface.
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5.4 MEAS TYPE
- + - +
- +
- +
The detected edges can be output in various ways, for example as simple edges (distance of the desired edge in mm from the center of the measuring range) or also the width or center of an object as a value in mm, calculated from two edges. The measuring modes and their calculation are described below.
5.4.1 Edge L rise
The edge of the first rising flank from the left. Distance in mm measured from the center of the measuring range of the sensor to the edge.
Left
Right
Left
Right
Measuring value in mm
Measuring value in mm
5.4.2 Edge L fall
The edge of the first falling flank from the left. Distance in mm measured from the center of the measuring range of the sensor to the edge.
Left
Right
Left
Right
Measuring value in mm
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Measuring value in mm
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5.4.3 Edge R rise
- +
- +
- + - +
The edge of the first rising flank from the right. Distance in mm measured from the center of the measuring range of the sensor to the edge.
Left
Right
Left
Right
Measuring value in mm
Measuring value in mm
5.4.4 Edge R fall
The edge of the first falling flank from the right. Distance in mm measured from the center of the measuring range of the sensor to the edge.
Left
Right
Left
Right
Measuring value in mm
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Measuring value in mm
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5.4.5 Width
- +
-
+
Distance between "Edge L rise" and "Edge R rise". Width measurement of the object in mm.
Left
Right
Left
Right
Measuring value in mm
Measuring value in mm
5.4.6 Center Width
Midpoint between "Edge L rise“ and "Edge R rise". Output of the distance from the center of an object to the center of the measuring range in mm.
Left
Right
Measuring value in mm
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Measuring value in mm
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- +
- +
5.4.7 Gap
Distance between "Edge L fall" and "Edge R fall". Measurement of a gap between two edges in mm.
Left
Measuring value in mm
Right
Left
Measuring value in mm
Right
5.4.8 Center Gap
Midpoint between "Edge L fall“ and "Edge R fall". Output of the distance from the center of a gap to the center of the measuring range in mm.
Left
Right
Left
Right
Measuring value in mm
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Measuring value in mm
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5.5 EDGE HEIGHT / OBJECT HEIGHT / GAP DEPTH
The minimum step height which the sensor should detect as an edge can be entered in mm here. By default, this step height is set to 4 mm. 2 mm is preset as the smallest detectable step. If the detected step is smaller than the value entered here, it is not detected as an edge.
5.6 OBJECT
To improve sensitivity to dark objects, the exposure time can be increased. At the same time, the measuring repeat time changes as well.
Bright objects
Measuring repeat time < 5 ms Response time < 10 ms Release time < 10 ms
Dark objects
Measuring repeat time < 7 ms Response time < 14 ms Release time < 14 ms
5.7 PRECISION
The accuracy can be increased by averaging an increased number of measurements. This also reduces the measuring speed.
Mode Sensor setting
Standard Median =off
Moving Average =off
High Median =7
Moving Average =16
Very High Median =15
Moving Average =128
Average
Moving averages (also known as rolling or running averages) reduce the existing variation in a series. Therefore they are frequently used to smoothen series.
The arithmetic mean (or also the average) is the sum of a collection of numbers divided by the number of numbers in the collection:
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Median
The median refers to a line between two halves. In statistics the median divides a distribution into two halves. Compared to the arithmetic mean, also known as average, the median has the advantage of being more
resistant to freak values (extremely deviating values). The median, and in case of an even number of measuring values, all values with , minimize the sum of absolute deviations; i.e. the
following applies to a random x
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5.8 FLEX MOUNT
The sensor can be mounted at an inclination angle of up to 30°. To adapt the coordinate system of the sensor to this circumstance, the new angle must be saved in the sensor memory.
FLEX MOUNT Angled installation
Standard installation
FLEX MOUNT Angled installation
Angle +30 … 0°
Distance from the reference surface 180 … 250 mm
Angle 0 … -30°
M
K
Distance from the reference surface 180 … 250 mm
Reference surface
In the FLEX MOUNT function, the inclination angle and the distance from the reference surface are automatically measured and saved in the sensor memory so that the coordinate system can be rotated correctly. It is important that the taught-in surface is even and covers as much of the entire measuring range of the sensor as possible.
This function is required when
- the angle to the reference surface is unknown
- standard installation (right angle to the reference surface or the object) is not present
- the reference surface is to be taught in and shifted automatically
- the required accuracy of the measurement results will not be achieved otherwise
- the background is to be suppressed
Effects
- The coordinate system is rotated by the current inclination angle
- The reference surface is taught in; the reference point (distance of 250 mm from the sensor) is no longer valid
- Objects behind the reference surface are ignored
- The axes are no longer referred to as X and Z but as K and M
- When this function is activated, this is indicated by an angle symbol on the left side of the display
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5.8.1 No
"Deactivate" deactivates FLEX MOUNT, the sensor can be remounted in standard installation. When FLEX MOUNT is not activated, 0° angle and 250 mm distance are set.
The angle symbol disappears from the display.
5.8.2 Yes
FLEX MOUNT is activated in this menu item when the sensor is to be mounted at an angle. Next "Place the reference" is output by the sensor and then the sensor must be aligned to the reference
surface (or to the auxiliary plate if there is not a reference surface).
Auxiliary plate
To compensate unevenness of the reference surface and to increase accuracy, an even temporary auxiliary plate can be used for this process, which is placed on the reference surface during teaching-in and removed after the process. This plate should be as even as possible and must cover at least 50 mm of the laser beam. It must be ensured that the plate is parallel to the reference surface below it. The thickness of this plate is not important as long as it is within the measuring field of the sensor.
THICKNESS REF
Note
The following menu items TEACH REF and THICKNESS REF must be completed so that FLEX MOUNT can be activated.
Left
Distance between sensor and reference surface
M
K
Minimum length of reference surface or auxiliary plate
Right
Auxiliary plate during the teach-in process
Reference surface uneven
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5.8.3 TEACH REF
Conditions during TEACH REF
The four following conditions must be met during the TEACH REF teach-in process. If one of the symbols listed below appears on the display, it lights up red. The teach-in process cannot be started until all errors have been eliminated.
Symbol Error description Error correction
Distance between sensor and reference surface not correct. The distance must be between 180
Correct distance between sensor and reference surface
and 250 mm
The inclination angle of the sensor to the
Correct inclination of the sensor reference surface is too large. Maximum inclination angle ±30°
The reference surface is too uneven. The unevenness must not exceed ±0.5 mm
Use an auxiliary plate during teach-in
process
The length of the reference surface is too small. It must have a minimum length of 50 mm
Remove objects from the measuring
field or use an auxiliary plate during the
teach-in process
Start the TEACH REF teach-in process by pressing SET for 2 seconds.
To ensure correct teaching-in of the reference surface, THICKNESS REF must always be completed after the angle teach-in process. Only in this manner can the effective reference surface be determined with due regard to the thickness of the auxiliary plate.
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5.8.4 THICKNESS REF
NOTE
In this menu item, the reference surface is finally defined with due regard to the thickness of the auxiliary plate.
Important: The sensor automatically suppresses everything below the defined reference surface. This shifting of the reference surface can also be used to suppress undesired backgrounds.
The surface taught in under TEACH REF is always the basis for this. This can be corrected downward with a positive value.
Auxiliary plate
TEACH REF; taught-in surface
10 mm
THICKNESS REF = 10 mm (example); this is the redefined reference surface, everything below it is suppressed
NOTE
If there is no auxiliary plate in use, the item THICKNESS REF must be saved with 0 mm by pressing SET for 2 seconds.
Once FLEX MOUNT is active, the measuring field and the digital output will be reset to the default values (FLEX MOUNT = Maximum measuring field, DIGITAL OUT = 0 mm).
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5.9 FIELD OF VIEW
The measuring field can be changed using the "FIELD OF VIEW" function. This is particularly useful when e.g. an edge or an undesired object is in the measuring range which should not be detected, or when the sensor is in an angled state and the measuring field should be limited (secured measuring field as a rectangle AUTO). The measuring field is adapted by software so the width of the visible laser beam does not change. When the edge is outside the defined measuring field, the red LED lights up and the alarm output is activated.
5.9.1 AUTO
With this function the measuring field can be limited to a rectangle. This function is particularly useful in the inclined state because the borders of the measuring field can be more easily recognized thanks to the rectangle (secured measuring field in height and width). The maximum width is automatically calculated by entering the height; the rectangle (height and width) shown on the display is saved by pressing SET for 2 seconds. When the rectangular measuring field is activated, the following symbol appears on the left side of the screen.
Entering height H in mm: The width of the rectangle is automatically set to the maximum allowable value
within the measuring field.
Left
Right
NOTE
The LIMIT LEFT, LIMIT RIGHT and OFFSET functions can be used as an aid to determine the position of the defined rectangle within the measuring field. The values of this rectangle are shown in this menu.
AUTO-
Measuring
Rectangle
field
0 mm
Width
Height
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NOTE
When using AUTO, already set measurement field limitations (left, right and offset) are canceled (eg offset is set to 0).
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The limit of the maximum height and width varies on the rectangle depending on the inclination angle.
Examples with inclination angle of -30°
The width increases when the height is reduced
Examples with inclination angle of -15°
The width increases when the height is reduced
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5.9.2 Manual limitation of the measurement field
LIMIT RIGHT
LIMIT LEFT
OFFSET
0 mm
0 mm
+62.5 mm
-62.5 mm
250 mm
OFFSET
0 mm
LIMIT RIGHT
LIMIT LEFT
0 mm
Standard installation
Angled installation (FLEX MOUNT)
Reference point
Reference point
0 mm
+54.6 mm
-73.0 mm
NOTE
For full flexibility, every value can be individually adjusted in the measuring field.
LIMIT LEFT
LIMIT RIGHT
OFFSET
Left
Right
Left
In case of standard installation (if FLEX MOUNT is not activated), the reference point of the sensor is respectively 0 (250 mm away from the Sensor).
If a reference surface was taught in with FLEX MOUNT, the taught-in surface there is 0.
Right
If the measuring field is already limited with a rectangle (AUTO), the rectangle can be limited additionally using LIMIT LEFT, LIMIT RIGHT and OFFSET.
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5.9.3 LIMIT LEFT
Value measured horizontally from reference point (0 mm), to the left. All edges to the left of this range are suppressed.
5.9.4 LIMIT RIGHT
Value measured horizontally from reference point (0 mm), to the right. All edges to the right of this range are suppressed.
5.9.5 OFFSET
All edges below this line are suppressed. In case of standard installation, if FLEX MOUNT is not activated, the offset is measured from the sensor reference point (250 mm away from the sensor). If FLEX MOUNT is activated, the taught-in reference surface is 0.
TEACH REF activated
If the FLEX MOUNT function is activated, the sensor already knows the reference surface; the desired offset value can be entered directly.
Example
The offset should be 10 mm above the taught-in reference surface. Displayed value in the OFFSET menu: 0 mm.
Entered OFFSET = 10 mm
Standard installation
In standard installation, the distance between the reference point and the sensor is always 250 mm. The distance from the reference surface can be output with LIVE MONITOR, which makes it easier to calculate the offset.
Example
The offset should be 10 mm above the reference surface. Displayed value in LIVE DIAGNOSIS: 240 mm. 250 mm - 240 mm + 10 mm = 20 mm
Entered OFFSET = 20 mm
Taught-in reference surface
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10 mm; offset
250 mm
Reference surface
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240 mm
Reference point
10 mm 10 mm
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Examples of measuring field limitations:
Example with a limited measuring field with AUTO mode (green) and additional limitation LIMIT (blue).
5.9.6 FIELD OF VIEW
"Set to max. values“ sets all adjustments of the measuring field back to the standard settings (maximum measuring field, see red area).
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5.10 DIGITAL OUT
SWITCH POINT
Area
Area
Area
Area
Left
Right
Left
Right
With Pin 4 (out), the user has a configurable switching output which can be defined as an individual switch point or as a window. Pin 4 is activated when the value (point or window) is exceeded or not reached (active high or active low depending on the setting). For a reliable
switching signal, the hysteresis is 0.5 mm.
DIGITAL OUTPUT: Point
minus (-)
0 mm
OUTPUT LEVEL: Active high
OUTPUT LEVEL: Active low
plus (+)
DIGITAL OUTPUT: Window
WINDOW POINT 2
WINDOW POINT 1
minus (-)
0 mm
plus (+)
WINDOW
Signal high
Signal low Signal high
Signal low
5.10.1 DIGITAL OUT
Whether Pin 4 is to be operated as a point (with a switch point) or as a window (window function) is defined here.
5.10.2 SWITCH POINT
The switch point is selected in mm using the arrow keys. The point must be within the measuring range.
5.10.3 WINDOW P1
Window point 1 (for the WINDOW mode) is selected in mm using the arrow keys. The point must be within the measuring range. The window must be> 2 mm.
5.10.4 WINDOW P2
Window point 2 (for the WINDOW mode) is selected in mm using the arrow keys. The point must be within the measuring range. The window must be> 2 mm.
5.10.5 OUTPUT LEVEL
The output can be set to active high or active low here (inverted).
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5.11 SYSTEM
5.11.1 RS485 BAUD
The sensor can be operated with three different baud rates:
38400
57600
115200
5.11.2 RS485 ADDR
In every PosCon 3D sensor this address is preset to 1 and can be changed here. Two sensors in the same network must not have the same address to prevent the occurrence of bus conflicts. No more than 16 sensors may be connected to one bus.
5.11.3 DISPLAY LIGHT
The background illumination of the display automatically switches off after the set time or remains switched on. The time starts to count as soon as the keys are locked (key symbol).
Off after 5 min
Off after 10min
Off after 20min
Always ON
5.11.4 SENSOR INFO
The sensor type and serial number are displayed here to enable clear identification of the sensor.
SENSOR TYPE
SERIAL NUM
5.11.5 LANGUAGE
Select the language:
English
Deutsch
Italiano
Français
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5.11.6 RESET
This resets all settings in all sensor parameters to the “factory settings”.
MEAS TYPE = Edge L rise EDGE HEIGHT = > 4 mm Object = Bright Precision = Standard FLEX MOUNT = Not activated (Standard installation A = 0°, D = 250 mm) FIELD OF VIEW = Max. values (Trapezium) DIGITAL OUT = Point (0 mm, Active high)
SYSTEM RS 485 BAUDRATE = 57600 RS 485 ADDRESS = 1 DISPLAY LIGHT = OFF after 5 min LANGUAGE = English
5.12 SETTINGS
The settings entered in the sensor can be applied, stored or displayed here.
5.12.1 APPLY
The settings saved under STORE can be activated here.
Setting 1
Setting 2
Setting 3
5.12.2 STORE
The settings entered in the sensor can be stored here. Three storage spaces are available.
Setting 1
Setting 2
Setting 3
5.12.3 SHOW
SHOW displays the setting values.
SHOW ACTIVE Displays the active settings.
SHOW SETTING 1-3 Displays the settings stored in storage space 1-3
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The values are displayed successively; it is possible to jump to the next value using SET. FUNCTION
MEAS TYPE EDGE HEIGHT OBJECT PRECISION FLEX MOUNT LIMIT LEFT LIMIT RIGHT OFFSET DIGITAL OUT SWITCH POINT / WINDOW P1 (WINDOW P2) OUTPUT LEVEL RS485 BAUD RS485 ADDR
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6 Function and definition
3
)
1) 2)
1)
Measurement with Baumer standardized measuring equipment and targets depending on measuring range (distance)
PosCon 3D
Article number: 11111452 Article name: OXE7.E25T-11111452
6.1 Datasheet
General data
Measuring mode function Measuring modes: edge position, center position, width, gap Type PosCon 3D Measuring range (width) 75…125 mm Measuring range (distance) 150 ... 250 mm Smallest detectable object 1…1,5 mm Smallest detectable step 2 mm Measuring frequency 300 Hz Resolution 30 … 50 µm Power on indication Green LED Output indicator Yellow LED / red LED Light source Red laser diode, pulsed Wave length 656 nm Laser class 1 Peak optical power 3 mW Cable length max. 5 m to the neutral point Setting Touch Display, RS485
Electrical data
Response time < 6.5 ms 3) Voltage supply range +Vs 15 ... 28 VDC Max. supply current (without load) 150 mA Output circuit Analog und RS485 Output signal 4 ... 20 mA / 0 ... 10 VDC Switching output Push-pull Switching function Out 1 / Alarm Output current < 100 mA Baudrate 115200, adjustable Reverse polarity protection Yes, +VS to GND Short circuit protection yes
Mechanical data
Width / Height / Length 26 / 74 / 55 mm Design rectangular, front view Housing material Aluminum Front (optics) Glass Connection type Plug M12 8-pole Weight 130 g
Ambient conditions
Ambient light immunity < 25 kLux Operating temperature -20 ... +50 °C storage temperature -25…+75 °C Protection class IP 67
2) Measurement on 90% remission (white) without filtering / averaging
3) Measurement with reduced field of view (offset 90mm)
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6.1.1 Measuring frequency in dependence of the field of view
Measuring frequency in dependence of Offset
The larger the offset is set, the higher the measuring frequency of the sensor.
Measuring frequency dep. Offset
350
300
250
200
150
100
50
Measuring frequency in Hz
0
0 10 20 30 40 50 60 70 80 90
Offset in mm
Measurement conditions: Background white; Measuring distance 250 mm
Measuring frequency in Hz
Measuring frequency in dependence of measuring range (width)
The smaller the range (the width of the measuring field), the higher is the measuring frequency of the sensor.
Measuring frequency in dep. Range (Width)
250
200
150
100
50
Measuring frequency in Hz
0
125 100 80 75 70 60 50 40 30 20 10
Measuring range (Width) in mm
Measurement conditions: Background white; Measuring distance 250 mm; Offset 0 mm
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Measuring frequency in Hz
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6.2 Dimensions
*Optical axis
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6.3 Functional principle
The PosCon 3D edge sensor operates based on the laser triangulation principle. By means of special optics, a laser beam is enlarged into a line and projected to the surface of the object to be measured. Using the multi-lens system, the reflected light from the laser line is projected onto a matrix. A controller calculates from this matrix image the precise position e.g. of the beginning or end of an object (i.e. of an edge) along the laser line. Thanks to the new Baumer technology, the position of the edge is output irrespectively of the distance between the sensor and the object to be measured. The sync input on PosCon 3D enables synchronization of measurement data with an object movement.
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6.3.1 Distance-independent measurement
Thanks to the unique functional principle, the position of an object in the measuring field is not important when e.g. the width or the gap is measured.
6.3.2 qTarget
Because the measuring field is exactly aligned to the housing reference surfaces at the factory, the beam position in every sensor is exactly in the same spot, which makes planning and sensor replacement very easy.
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6.4 Object to be measured
6.4.1 Object size
The following requirements must be met so that the sensor can evaluate the object to be detected: The width of the object to be measured must not be less than 1…1.5 mm, and its height (step) must not be less than 2 mm.
Left
Right
Width
>1…1.5 mm
Height
> 2 mm
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6.4.2 Definition of flanks
The edges to be detected are defined as rising or falling flanks. The position/selection of flanks is defined as first from the left or first from the right.
A rising flank is
a flank which runs from far to near
a flank which runs from infinity (or nothing) to an object
A falling flank is
a flank which runs from near to far
a flank which runs from an object to infinity (or nothing)
The point of the flank which is closer to the sensor is always chosen as the measuring value. The border of the measuring range is not an edge.
Left
This arrowhead points to the measuring value
Red arrows represent edges/flanks
Right
6.4.3 Definition of an edge
Edge
An edge is the transition of a stable level (1) inside or outside the measuring range to another stable level (2). Measurement is always carried out at the level that is closer to the sensor.
The average increase must be greater than ±1.5 mm at 0.5 mm.
>1.5 mm
0.5 mm
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6.5 Interfaces and outputs
All sensor inputs and outputs which transmit measuring data are referred to as interfaces.
- Analog current output, 4…20mA or 0…10V (automatic switchover)
- Synchronization
- Switching output push-pull
- Alarm output push-pull
- RS-485
6.5.1 Analog signal output
The sensor has an adaptive output. This means that the sensor recognizes automatically whether it should deliver current or voltage. This is done by measuring the electrical load during startup, if the load is high
impedance (>10 kOhm) the voltage output is activated, otherwise the current output.
To change to the other analog mode (Current or voltage), the supply voltage +Vs of the sensor must be switched off and on again.
6.5.2 Calculating the analog output signal in function Edge or Center
Using the following formulas, the measuring values in mm can be converted into the analog output signal:
 = 12 +  ∗ 0.1
! = 5# +  ∗ 0.05
Edge/Center width/Center gap
25
20
15
10
Output analog mA/V
5
0
-80 0 80
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Analog output
Distance from the center in mm
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mA
Volt
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6.5.3 Calculating the analog output signal in function Width or Gap
Using the following formulas, the measuring values in mm can be converted into the analog output signal:
 = 4 +  ∗ 0.1
! =

16
Analog output
Width or Gap
25
20
15
10
Output analog mA/V
5
0
0 80 160
WIDTH/GAP in mm
mA
Volt
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6.5.4 Sync/Trigger
The measurement and signal output can be interrupted by using Sync-In (by connecting with High). As long as Sync-In is set to High, the sensor waits for the next measurement, thereby reducing the power of the laser beam.
The sensor checks the Sync-in before each measurement
The previous measurement cycle will be always completed, even if the sync-in is High
The sensor reduces the power of the laser beam during the waiting period (Hold). During this time the
output is 4mA or 0V
To come back to measuring mode, the Sync-In has to be set from High to Low
The Sync-in must be at least 5µs at Low to come back to the measuring mode
After changing the Sync-In from High to Low the first measurement cycle takes longer
Example: Mutual interference
Only the laser beam of Sensor1 may be in the measuring field of Sensor1. The laser beam of Sensor2 must be outside the measuring field from Sensor1.
If it is not possible to prevent several sensors from affecting each other through appropriate installation, the sensors affecting each other can be operated asynchronously by the Sync-In cable. The superordinate control generates the signals for this.
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6.5.5 Switching output
The switching output can be adjusted as a point or a window and the switching points can be set, see Section DIGITAL OUT. The output is output as a push-pull signal active high or active low, depending on setting.
6.5.6 Alarm
The alarm output cannot be adjusted and is triggered by the following situations:
No object in the measuring range
No edge in the measuring range
Amplitude of the received signal is insufficient (e.g. in case of soiling)
It is output as a push-pull signal (active high).
6.5.7 Interface RS-485
During operation with RS485 no more than 16 sensors may be connected to one bus. When activating the RS485 interface, the analog output, the digital output and the alarm output are disabled.
See separate RS 485 manual.
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6.6 Touch panel
6.6.1 Function and design
The display consists of a monochrome 128 x 32 Pixel LCD with RGB LED background illumination. The sensor can be configured using four keys.
Operation: Four capacitive touch operator interfaces.
6.6.2 Dimensioning
24
7
3.5
7
20.5
10
Capacitive operator
4
5 1
31.5
6.7 Memory
All changes made in the sensor are saved in a permanent memory and are not deleted even after a power outage.
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7 Safety instructions and maintenance
7.1 General safety instructions
Intended use
This product is a precision device and is used for object detection and the preparation and/or provision of measuring values as electrical quantities for a subsequent system. Unless this product is specially labeled, it may not be used for operation in potentially explosive environments.
Commissioning
Installation, mounting and adjustment of this product may be performed only by a qualified person.
Installation
For mounting, use only the mechanical mountings and mechanical mounting accessories intended for this product. Unused outputs must not be wired. In cable versions with unused cores, these cores must be insulated. Always comply with admissible cable bending radii. Prior to electrical connection of the product, the system must be disconnected from the power supply. In areas where shielded cables are mandatory, they must be used as protection against electromagnetic disturbances. If plug connections to shielded cables are made by the customer, an EMC version of the connectors should be used, and the shield must be connected to the connector housing across a large area.
7.2 Laser class
The sensor must be used in accordance with laser class 1, corresponding safety precautions must be observed.
7.3 Influence of ambient light
Ambient light from lamps, the sun, etc. in the view field of the sensor can lead to malfunctions or a reduction of accuracy and should be avoided as much as possible.
7.4 Front (optics)
In case the front (optics) or the display pane breaks, the sensor must be immediately disconnected from the power supply and may be restarted only by an authorized service company.
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7.5 Cleaning the sensors
The laser distance sensors do not require any maintenance, except that the front windows must be kept clean. Dust and fingerprints can impair sensor function. It is normally sufficient to wipe the windows with a clean (!), soft lens cleaning cloth. Alcohol or soapy water can be used in case of severe soiling. The display and the keys must be kept free from dirt and moisture. Water and dirt on the keys can impair their function.
8 Error correction and tips
8.1 Effects of deviations in the inclination angle
Measuring errors occur if the actual inclination angle of the sensor deviates from its stored angle (Tilt angle).
The sensor cannot compensate the tilt angle error if the sensor is mounted inclined and FLEX MOUNT is inactive. This can cause measurement errors.
Tilt angle Measurement
error
0.00 % 1° 0.02 % 2° 0.06 % 3° 0.14 % 4° 0.24 % 5° 0.38 % 6° 0.55 % 7° 0.75 % 8° 0.97 % 9° 1.23 % 10° 1.52 % 11° 1.84 % 12° 2.19 % 13° 2.56 % 14° 2.97 % 15° 3.41 % 16° 3.87 % 17° 4.37 % 18° 4.89 % 19° 5.45 % 20° 6.03 % 21° 6.64 % 22° 7.28 % 23° 7.95 % 24° 8.65 % 25° 9.37 % 26° 10.12 % 27° 10.90 % 28° 11.71 % 29° 12.54 % 30° 13.40 %
Tilt angle Tilt angle
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8.2 Error correction
Error Error correction
No function Check connection. Power supply 15 … 28 VDC at pin 2 (+Vs) and pin
7 (GND) Green LED flashes Short circuit in connecting cable. Check connection. Red LED lights up Object outside measuring field (near, far or at the side)
No edge in the measuring field
Amplitude of the received signal is insufficient (e.g. in case of
soiling)
Touch panel cannot be operated Touch panel locked. Re-enable panel for operation by sliding a
finger over the 4 keys from left to right.
RS-485 controls the sensor--> operation via the touch panel not possible at the same time
RS-485 locks the touch keys--> the touch panel was locked via RS-485 and can be re-enabled only with a command via RS­485
Touch panel does not react Clean panel. The panel is dirty or wet, which makes it harder to
press the keys
Sensor measures inaccurately Check inclination angle and work with the FLEX MOUNT mode
if required (teach in the new reference surface)
Adjust edges of the object. The edges of the object do not meet the requirements according to Section "Functions and Definitions / Object to be measured / Definition of an edge"
The object is in the blind region (too close to the sensor); the displayed measuring values is a shadow of the object (fictitious edge)
Bright object, avoid direct reflexes from the transmitter to the receiver
Measured zero point not in the center of the red laser line
The sensor does not measure all objects within the red laser beam
The position of the created rectangle (secured measuring field) is not clear Unreliable measuring value: The measuring value jumps back and forth
The edges of the object are not detected
Adjust evaluation. The sensor is mounted at an inclined angle to the reference surface so that the zero point shifts compared to standard installation (right angle). See also Section "Sensor alignment"
Enlarge measuring field. The measuring field was possibly limited; see Section "FIELD OF VIEW".
Move object. The object is outside the measuring field vertically or is in the blind region of the sensor
If a rectangle was adjusted with AUTO, the LIMIT LEFT, LIMIT RIGHT and OFFSET functions can be used as an aid. The individual values of the rectangle are shown in this menu.
The object is in the blind region (too close to the sensor); the displayed measuring values is a shadow of the object (fictitious edge)
For more measuring reliability use FLEX MOUNT
Avoid bright object
Avoid very dark object
Too much ambient light
Check height of the edge set at the sensor
Check MEAS TYPE
EDGE HEIGHT/OBJEKT HEIGHT/GAP DEPTH function
defines the minimum step of an edge. The edge of an object
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must be higher than the minimum defined step (minimum step is 2 mm)
The edges of the object do not meet the requirements of an edge, see Section "Definition of an edge"
The edge is outside the measuring field or the measuring field was limited, see Section FIELD OF VIEW
Transmitting laser light is dim Sync-In input is on High--> set to Low
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9 Change history
27.06.2014 tof Manual released in version 1.0
11.07.2014 tof Version 1.01. Adaptation graphics chapter LIVE MONITOR
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