Wenglor PNBC002, PNBC005, PNBC008 Operating Instructions Manual
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EN
PNBCxxx
High-Performance Distance Sensors
Operating Instructions
Available as PDF file only
Version: 1.1.0
Revision level: 19.07.2017
www.wenglor.com
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EN
Table of Contents
3. EC Declaration of Conformity
8.1.1. Center of Gravity (Cog)
8.2. Measuring Accuracy and Error Influence
8.2.3. Surface Damage on the Object to be Measured
8.2.6. Dependence of Measurement on Angle
9.2. Device Settings (website)
12.1. Change Index, Operating Instructions
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1. Use for Intended Purpose
This wenglor product is intended for use in accordance with the following functional principle:
High-Performance Distance Sensors
This product group includes high-performance sensors for measuring distance, which function in accordance with various principles in scanning mode operation. High-Performance Distance Sensors are especially fast or accurate, or have large working ranges. They’re extremely well suited for demanding applications. Even black and glossy objects can be reliably detected. Ethernet technology is integrated into selected sensors.
2. Safety Precautions
2.1. Safety Precautions
• These instructions are an integral part of the product and must be kept on hand for the entire duration of its service life.
• Read the operating instructions carefully before using the product.
• Installation, initial start-up and maintenance of the product may only be carried out by qualified personnel.
• Tampering with or modifying the product is impermissible.
• Protect the product from contamination during initial start-up.
• Not a safety component in accordance with the EU machinery directive
2.2. Laser/LED Warnings
Laser Class 2
EN60825-1
Laser Class 2 (EN 60825-1)
Applicable standards and safety regulations must be observed.
The accompanying laser warnings must be attached.
Do not look into the laser beam.
Caution: Use of control and/or adjusting devices other than those specified here, as well as the execution of other procedures, may result in hazardous exposure to laser radiation.
LASERSTRAHLUNG
NICHT IN DEN STRAHL BLICKEN
LASER KLASSE 2
EN60825-1: 2007
Po<1mW, λ =620 – 690nm
LASER RADIATION
DO NOT STARE INTO BEAM
CLASS 2 LASER PRODUCT
EN60825-1: 2007
Po<1mW, λ = 620-690 nm
CAUTION
LASER RADIATION
DO NOT STARE INTO BEAM
Complies with 21 CFR
1040.10 and 1040.11 except for deviations pursuant to Laser
Notice No. 50, July 2001
CLASS 2 LASER PRODUCT
CAUTION
LASER RADIATION -
DO NOT STARE INTO BEAM
Conforme aux règlements
21CFR 1040.10 et 1040.11 sauf pour les dérogations selon l'avis sur les dispositifs laser n° 50, juillet 2001
CLASS 2 LASER PRODUCT
3. EC Declaration of Conformity
The EC declaration of conformity can be found on our website at www.wenglor.com in the product’s separate download area.
RoHS
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4. Technical Data
PNBC001
Optical Characteristics
Working range [mm]
Measuring range
Resolution
Linearity error
Type of Light
Wavelength
Service life
(ambient temp. = +25° C)
Laser class (EN 60825-1)
20…24
4 mm
0.06 µm
2 µm
Laser (red)
658 nm
100,000 hours
2
Max. allowable extraneous light 10,000 lux
Spot diameter < 0.15 mm
PNBC002
25…35
10 mm
0.15 µm
5 µm
Laser (red)
658 nm
100,000 hours
2
10,000 lux
< 0.20 mm
PNBC003
40 to 60
20 mm
0.3 µm
10 µm
Laser (red)
658 nm
100,000 hours
2
10,000 lux
< 0.25 mm
PNBC004
58 to 108
50 mm
0.8 µm
25 µm
Laser (red)
658 nm
100,000 hours
2
10,000 lux
< 0.35 mm
Electrical Characteristics
Supply power
Current consumption (operating voltage = 24 V)
Switching frequency
10 to 30 V DC
280 mA
Response time
Output rate
Temperature drift
Temperature range
Storage temperature
15 kHz
<33 µs
10...30000/s
0.2 µm/K
–10 to 40° C
–20 to 70° C
Number of switching outputs 4
Voltage drop at switching output
Switching output switching current
Can be switched to NC or NO operation
PNP / NPN / push-pull
< 1.5 V
100 mA
Yes
Yes
Analog output
Short-circuit proof
Reverse polarity protected
Overload Protection
10 to 30 V DC
280 mA
15 kHz
<33 µs
10...30000/s
0.5 µm/K
–10 to 40° C
–20 to 70° C
4
< 1.5 V
100 mA
Yes
Yes
10 to 30 V DC
280 mA
15 kHz
<33 µs
10...30000/s
1 µm/K
–10 to 40° C
–20 to 70° C
4
< 1.5 V
100 mA
Yes
Yes
10 to 30 V DC
280 mA
15 kHz
<33 µs
10...30000/s
2.5 µm/K
–10 to 40° C
–20 to 70° C
4
< 1.5 V
100 mA
Yes
Yes
0 to 10 V/4 to 20 mA 0 to 10 V/4 to 20 mA 0 to 10 V/4 to 20 mA 0 to 10 V/4 to 20 mA
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Teach-in-Modus
Interface
Transmission speed
Protection class
Webserver
Mechanical Characteristics
Setting method
Housing material
Protection
VT/FT VT/FT VT/FT VT/FT
Ethernet TCP/IP Ethernet TCP/IP Ethernet TCP/IP Ethernet TCP/IP
100 Mbit/s
III
Yes
100 Mbit/s
III
Yes
100 Mbit/s
III
Yes
100 Mbit/s
III
Yes
Teach-in
Aluminum
IP 67
Teach-in
Aluminum
IP 67
Teach-in
Aluminum
IP 67
Teach-in
Aluminum
IP 67
Connector type
Ethernet connector type
Lens cover
M12×1, 8-pin
M12× 1, 4-pin
Glass
M12×1, 8-pin
M12×1, 4-pin
Glass
M12×1, 8-pin
M12×1, 4-pin
Glass
M12×1, 8-pin
M12×1, 4-pin
Glass
PNBC005
Optical Characteristics
Working range [mm]
Measuring range
Resolution
Linearity error
Type of Light
90…190
100 mm
1.5 µm
50 µm
Laser (red)
Wavelength 658 nm
Service life (ambient temp. =
+25° C)
100,000 hours
Laser class (EN 60825-1) 2
Max. allowable extraneous light 10,000 lux
Spot diameter < 0.75 mm
PNBC006
200…400
200 mm
3.1 µm
100 µm
Laser (red)
658 nm
100,000 hours
2
10,000 lux
< 0.90 mm
PNBC007
250…650
400 mm
6.1 µm
200 µm
Laser (red)
658 nm
100,000 hours
2
10,000 lux
< 1.20 mm
PNBC008
200…1000
800 mm
12.2 µm
375 µm
Laser (red)
658 nm
100,000 hours
2
10,000 lux
< 1.60 mm
Electrical Characteristics
Supply power
Current consumption (operating voltage = 24 V)
Switching frequency
10 to 30 V DC
280 mA
Response time
Output rate
Temperature drift
Temperature range
Storage temperature
15 kHz
<33 µs
10...30000/s
5 µm/K
–10 to 40° C
–20 to 70° C
Number of switching outputs 4
Voltage drop at switching output
Switching output switching current
Can be switched to NC or NO operation
< 1.5 V
100 mA
Yes
PNP / NPN / push-pull Yes
Analog output
Short-circuit proof
Reverse polarity protected
Overload Protection
10 to 30 V DC
280 mA
15 kHz
<33 µs
10...30000/s
10 µm/K
–10 to 40° C
–20 to 70° C
4
< 1.5 V
100 mA
Yes
Yes
10 to 30 V DC
280 mA
15 kHz
<33 µs
10...30000/s
20 µm/K
–10 to 40° C
–20 to 70° C
4
< 1.5 V
100 mA
Yes
Yes
10 to 30 V DC
280 mA
15 kHz
<33 µs
10...30000/s
37.5 µm/K
–10 to 40° C
–20 to 70° C
4
< 1.5 V
100 mA
Yes
Yes
0 to 10 V/4 to 20 mA 0 to 10 V/4 to 20 mA 0 to 10 V/4 to 20 mA 0 to 10 V/4 to 20 mA
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Teach-in-Modus
Interface
Transmission speed
Protection class
Webserver
VT/FT VT/FT VT/FT VT/FT
Ethernet TCP/IP Ethernet TCP/IP Ethernet TCP/IP Ethernet TCP/IP
100 Mbit/s
III
Yes
100 Mbit/s
III
Yes
100 Mbit/s
III
Yes
100 Mbit/s
III
Yes
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Mechanical Characteristics
Setting method
Housing material
Protection
Connector type
Ethernet connector type
Lens cover
Teach-in
Aluminum
IP67
M12×1, 8-pin
M12×1, 4-pin
Glass
Teach-in
Aluminum
IP67
M12×1, 8-pin
M12×1, 4-pin
Glass
Teach-in
Aluminum
IP67
M12×1, 8-pin
M12×1, 4-pin
Glass
Teach-in
Aluminum
IP67
M12×1, 8-pin
M12×1, 4-pin
Glass
4.1. Measuring rate
Determination of the measuring rate on various surfaces with an angle of incidence of 90°
PNBC001 PNBC002 PNBC003 PNBC004
Object color white gray black
30 kHz
30 kHz
1 kHz
30 kHz
30 kHz
27 kHz
30 kHz
30 kHz
27 kHz
30 kHz
30 kHz
12 kHz
PNBC005 PNBC006 PNBC007
Object color white gray black
30 kHz
30 kHz
12 kHz
30 kHz
30 kHz
10 kHz
25 kHz
20 kHz
6 kHz
Values measured on OPTEKA Digital Color & White Balance Grey Card Set
Degree of remission: white: 90%
PNBC008
25 kHz
18 kHz
5 kHz
NOTE!
These are typical measured values which may vary depending on surface characteristics and angle of incidence.
4.2. Wiring Diagram
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004
Legend
Supply Voltage +
Supply Voltage 0 V
Supply Voltage (AC Voltage)
Switching Output
Switching Output
(NO)
(NC)
Contamination/Error Output (NO)
Contamination/Error Output (NC)
Input (analog or digital)
Teach Input
Time Delay (activation)
Shielding
Interface Receive Path
Interface Send Path
Ready
Ground
Clock
Output/Input programmable
Power over Ethernet
Safety Input
Safety Output
Signal Output
Ethernet Gigabit bidirect. data line (A-D)
Encoder 0-pulse 0-0 (TTL)
PT Platinum measuring resistor not connected
Test Input
Test Input inverted
Trigger Input
Analog Output
Ground for the Analog Output
Block Discharge
Valve Output
Valve Control Output +
Valve Control Output 0 V
Synchronization
Receiver-Line
Emitter-Line
Grounding
Switching Distance Reduction
Ethernet Receive Path
Ethernet Send Path
Interfaces-Bus A(+)/B(–)
Emitted Light disengageable
Magnet activation
Input confirmation
Contactor Monitoring
Encoder A/A (TTL)
Encoder B/B (TTL)
Encoder A
Encoder B
Digital output MIN
Digital output MAX
Digital output OK
Synchronization In
Synchronization OUT
Brightness output
Maintenance
Wire Colors according to
DIN IEC 757
Black
Brown
Red
Orange
Yellow
Green
Blue
Violet
Grey
White
Pink
Green/Yellow
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4.3. Housing Dimensions
PNBC001
PNBC002
PNBC003
1 = Emitter Diode
2 = Receiving Diode
3 = Bearing Surface with M4 on Both Sides
1 = Emitter Diode
2 = Receiving Diode
3 = Bearing Surface with M4 on Both Sides
1 = Emitter Diode
2 = Receiving Diode
3 = Bearing Surface with M4 on Both Sides
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PNBC004
PNBC005
PNBC006/007/008
1 = Emitter Diode
2 = Receiving Diode
3 = Bearing Surface with M4 on Both Sides
1 = Emitter Diode
2 = Receiving Diode
3 = Bearing Surface with M4 on Both Sides
1 = Emitter Diode
2 = Receiving Diode
3 = M4 on both sides
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4.4. Control Panel
A16
68
83
85
Designation
Power
Signal
Link/Act
68 = Supply Power Indicator
83 = Signal
Link/Act LED
Status Function
Green Operating voltage on
Off
Green
Operating voltage off
Signal strength OK, sensor ready to measure
Blinking green Weak signal, unreliable measurement results
Red
Yellow
No signal, sensor contaminated and/or overranging
Links available
Blinking yellow Communication
4.5. Complementary Products
wenglor offers Connection Technology for field wiring.
Suitable mounting technology no.
550
Suitable connection technology no.
89
S74
51
S77
Switch ZAC51xN01
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System overview
5. System Overview
Connector Cables
M12, 8-pin to open end
ZAS89R201 2 m
ZAS89R501 5 m
ZAS89R601
ZAS89R701
10 m
20 m
ZAS89R202 (angled)
ZAS89R502 (angled)
ZAS89R602 (angled)
2 m
5 m
10 m
Connection Cable
M12, 8-pin
BG88SG88V2-06M
BG88SG88V2-2M
0,6 m
2 m
Connection Cable
M12, 4-pin to RJ45
ZAV51R202
ZAV51R602
M12, 4-polig
ZAV51R201
ZAV51R601
2 m
10 m
2 m
10 m
Mounting System
ZNBZ001
ZNBZ002
Protective Window Holder
Available for each model
Cooling Module
ZNBK001
ZNBK002
Protective Window Set
Available in glass or plastic for each protective window holder Legend
Required Accessories
Optional Accessories
Photoelectronic Sensors
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6. Installation Instructions
During use of the sensor, applicable electrical and mechanical regulations, standards and safety precautions must be adhered to. The sensor must be protected against mechanical influences.
When installing the sensor it must be ensured that direct eye contact with the laser beam is avoided. The laser warning must be plainly visible.
When installing the sensor it must be ensured that the measuring beam is exactly perpendicular to the surface to be measured in order to assure accurate measurement results. Tilting results in a geometrically longer measuring path.
Moving or Striped Objects
If moving or striped objects will be measured, the sensor head should be mounted with its long side perpendicular to the motion of direction or the stripes. In this way, better measurement results can be achieved in the corners because shadowing is avoided: falsch wrong richtig correct
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6.1. Default Settings
IP address
Subnet mask
Evaluation method
Average filter
Sampling rate
Output rate
Laser
Offset
Analog mode
E1
E2
A3
A4
Input load: 2 mA
Input
Teach-in mode
PNBCxxx
192.168.0.225
255.255.0.0
COG
0 (corresponds to the off state)
Auto
10 kHz
Auto
0.0 mm
4 to 20 mA
Ext. teach-in: O3
Ext. teach-in: O4
Switching output: PNP / NO
Switching output: PNP / NO
On
Operating voltage active
Foreground teach-in
7. Initial Start-Up
Two connector plugs are integrated in to the sensor’s housing. The 8-pin plug supplies the sensor with +24 V operating voltage, whereas communication for parameters configuring and process data is conducted via the
4-pin socket. We recommend the exclusive use of Ethernet switches in order to optimize data communication.
Please note: If Gigabit Ethernet cards are used, the polarity of the Tx and Rx conductors might not be correctly detected. Connecting sensors directly may result in complications. With an Ethernet crossover cable (crosslink), the sensor functions flawlessly via a PC network card. As an alternative, a commercially available 100 Mbit
Ethernet switch can also be used.
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8. Function Descriptions
PNCB High-Performance Distance Sensors work with a high resolution CMOS line array and determine distance by means of an angular measurement at a sampling rate of up to 30 kHz. The sensor is equipped with integrated electronics and no additional controller is required as a result.
Ascertained distance values are read out as process data via the interface and at the analogue output with16bit resolution.
Measuring Range
20 mA
4 mA
Distance to the object
The diffusely refl ected light from the measuring point is decisive for the measurement. Inadequate intensity of the remitted light is indicated by an LED signal lamp on the sensor’s control panel. In the event of minimal remission, the sensor automatically reduces its sampling and output rates, in order to provide accurate measurement results. Signal strength is indicated on the website as a percentage (see “Status Display” in section
“9.1. Page Layout (website)” on page 22 ).
Not only does the laser spot produce an illuminated pixel on the CMOS line array, it also generates an intensity curve which is distributed over several pixels. This intensity curve is called the peak, and ideally it’s steep at both ends, monotonically non-decreasing and symmetrical. The curve depends on distance, internal optics and the surface of the object to be measured. The evaluation method is decisive with regard to attainable measuring accuracy. Some surfaces require an evaluation method which is especially suited to them.
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The following peak evaluation methods (algorithms) are available:
8.1. Evaluation method
8.1.1. Center of Gravity (Cog)
The Cog evaluation method calculates the peak’s center of gravity, whose×-coordinate is the sought crude result. The peak has to be separated from the “sink” for the purpose of center of gravity analysis, which necessitates calculation of the so-called sink height.
sink height background level measured value
Sink height is the mean value of all pixel intensities and is thus somewhat higher than the background level.
All pixels to the left and to the right of the maximum, whose intensity is greater than the sink height, are used in order to calculate the center of gravity. With 16-bit resolution, the measured values are highly precise thanks to this evaluation method.
8.1.2. Edge Evaluation
In this evaluation method, the peak's edges are evaluated. The advantage of this evaluation method is the fact that the peak’s asymmetrical crests, caused for example by speckle effects resulting from a sheet metal panel, are excluded from the evaluation.
measured value
With edge evaluation as well, the measured values achieve highly precise 13-bit resolution.
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8.2. Measuring Accuracy and Error Influence
8.2.1. Calibration Report
A calibration report is included with the sensor, which graphically represents linearity error as a percentage for the measured value on a matte white surface.
The following is an example of a calibration report:
Calibration Protocol
Order Number:
Serial Number:
MAC Address:
PNBC001
000001
00:07:AB:F0:0C:AB
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Measurement Conditions:
Measuring Range
Working Range
Measured Surface
Evaluation Method
Temperature
Laser Class
4 mm
20...24 mm
White Surface
COG
20° C (+/-1° C)
2 (max 1.0 mW)
Differences to the above data can appear due to:
1. Target material and surface
2. Target geometry
3. Sensor mounting
4. Temperature fluctuation during the measurement
5. Strong circulation of warm air between sensor and tar get
Further statements in the datasheet and the operati on instructions are valid.
Inspector:
Date: be
05.05.2017
8.2.2. Surface Material
Possible objects to be measured include all sorts of materials such as metal, plastic, ceramic, rubber and paper. Suitability for use only needs to be tested individually for highly reflective surfaces and liquids.
8.2.3. Surface Damage on the Object to be Measured
A scratch on the surface of the object to be measured which runs perpendicular to the axis of the lens may cause stronger light emissions, whose maxima are located next to the center of the spot. An incorrect distance is simulated as a result.
If a moving object is involved, the mean (integral) measured value remains constant when the damaged surface is scanned, i.e. the positive and negative edges cancel each other out due to the damage.
Undesired deflection can be minimized by selecting a suitable average filter.
8.2.4. Extraneous Light
When installing the sensor it must be assured that no direct or reflected sunlight can shine into the receiver optics. Where difficult applications are involved, this “extraneous light” may interfere with measured value recording. The measuring point should be correspondingly shaded in such cases.
8.2.5. Changes in Remission
The sensors are equipped with luminous intensity control which is automatically adjusted to the level of remission from the object to be measured. If remission from the surface changes during measurement, the sensor compensates for any fluctuation. By selecting a fixed sampling rate, measured values remain accurate even if surface remission changes.
8.2.6. Dependence of Measurement on Angle
Measurement is minimally dependent on angle if the sensor is not aligned at a right angle to the object to be measured. Tilting the sensor results in a greater distance to the object. This change in distance can be set to zero by means of a corresponding offset shift.
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9. Settings
There are several different ways to enter settings to the device:
• Via the integrated website, with which PNBC Sensors are equipped. This website functions independent of the operating system and the sensor can be configured via a standard browser.
• The web-based configuration interface is not required for normal operation with a controller (the default IP
address is listed in section “6.1. Default Settings” on page 15).
• With the help of w-Teach configuration and display software which is available for download from www.wenglor.com
• Using the function block for simplified incorporation of PNBC Sensors into an S7 controller – also available for as a download
Settings are explained below based on the descriptive example provided by the website which is integrated into the sensor.
Attention:
If the sensor is connected to a controller, the settings which have been selected via the website are overwritten by the controller.
Accessing the Website
Start the web browser. Enter the sensor’s manually selected IP address to the address line in your browser and press the enter key. In order to ensure that the browser displays the current settings on the website, the website has to be automatically reloaded whenever changes are made. This setting must be changed in a browserspecific manner which is described here using the Internet Explorer as an example. Select Every time I visit the webpage under Tools Internet options General Settings . Otherwise, changes might not be correctly displayed via the website.
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In order to be able to access the product’s website (in this example the PNBC002), the IP address must be entered to the browser’s address line as described.
Default IP address: 192.168.0.225
The initial page appears with general information concerning the connected sensor.
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9.1. Page Layout (website)
The website is subdivided into the following areas:
Language selection
The website can be changed from English (default language) to other languages with the language selection function.
Status display
Current status messages are displayed:
Measured value: Displays the current distance between the edge of the sensor’s housing and the object.
I/O1…I/O4: Indicates the switching status of the respective input or output.
Sampling rate: Displays the current sampling rate.
Signal strength: Indicates the intensity of received light. If luminous intensity is too low, the object is either
Temperature: outside of the measuring range or the emitted light setting is not high enough.
Displays current temperature inside the sensor housing. Depending on how the sensor is
Encoder: mounted, this temperature is 10 to 15° C above ambient temperature. “OK” appears next to the value in order to indicate that the sensor is being operated within its specified values.
If the specified temperature limit is exceeded, “Too hot” appears instead.
Displays the current encoder value.
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Page content
Depending on which category is selected in the menu at the left-hand side of the page, respective page content appears here.
Category selection
The settings are subdivided into the following categories:
• General device information: Overview page with general information regarding the sensor as a display without any setting options.
• Device settings:
– The sensor’s network settings (see section 9.2)
– The sensor’s measured value settings (see section 9.2)
– General settings (see section 9.2)
• I/O settings:
Settings for the digital inputs and outputs (see section 9.3)
9.2. Device Settings (website)
1. Network settings
The IP address and the addresses for the subnet mask and the gateway can be changed in the respective fields. Changes are activated by entering the “admin” password and by restarting the device. Please make sure that the selected subnet mask is actually available within the network. Otherwise you might not be able to find the sensor in the network.
2. Measured value settings
Evaluation method: functions description (see section “8. Function Descriptions” on page 16)
Average filter: Adjustable, rolling average filter from 1 to 1000 measured values
– The smaller the selected value, the faster the measured value reacts to jumps.
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Sampling rate:
Output rate:
– The larger the selected value, the more smoothed the measured value becomes.
Possible settings include “Auto” (the sampling rate is adjusted automatically) or “= output rate” (sampling rate = output rate). Values can be selected within a range of 900 to
30,000 Hz as well.
Values can be selected within a range of 10 to 30,000 Hz. The measured values are compiled individually as an Ethernet data packet at the selected rate.
Example: Using the “extended continuous measurement” evaluation method with 150 distance values and a selected output rate of 1 kHz (corresponds to 1 ms), you get the
Laser:
Offset: entire data packet every 150 ms.
Laser power adjustable from 0.1 to 1.0 mW, or automatic
If desired, a zero-point offset can be entered here.
Screening Grid: When activated, the effects of the screening grid on the measured distance value and linearity are compensated for by this option.
3. General settings
Encoder reset:
Default values:
Resets the encoder input to zero.
Resets all values to their default settings.
Exception: network settings
9.3. I/O Settings (website)
1. Analog output
Selection of 0 to 10 V or 4 to 20 mA
2. I/O settings
Various pin functions can be selected for the individual inputs/outputs.
Depending on the selected setting, context menus offer corresponding selection options.
Pin function:
• Switching output: The selected output functions as a switching output.
• External teach-in: One of the sensor’s switching inputs can be taught in anew by applying an electrical signal to this input.
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E1/A
5...24 V
0 V
E2/B
5...24 V
90°
Displacement
0 V
Displacement
• Encoder E1+E2: A 2-channel rotary encoder with HTL square-wave signal must be used. Channel A is displaced 90° relative to channel B. It must be assured that a shielded cable is used in order to avoid possible interference or crosstalk between the conductors.
• Encoder reset: The encoder is reset to “0”.
• Laser off: The laser can be switched on or off by activating the input load or the input voltage.
Output:
• PNP output: The load or the analysis module is connected between the minus pole (reference) and the output. When switched, the output is connected to the plus pole via an electronic switch. A PNP output can also be equipped with a pull-down resistor.
• NPN output: The load or the analysis module is connected between the plus pole (reference) and the output. When the sensor is switched, the output is connected to the minus pole via an electronic switch. An
NPN output can also be equipped with a pull-up resistor.
• Push-pull: alternate PNP and NPN switching
Output function:
• The output can be configured as NO (normally open) or NC (normally closed).
Teach-in mode:
• Teach-in: a function by means of which the sensor is caused to automatically calculate and save future settings based upon momentarily acquired values by pressing a button or applying a control signal.
• FT teach-in mode (window teach-in): There are two switching points in the case of window teach-in. The distance between the two switching points is called the window. The size of the window is designated window width. The sensor is switched when an object is within the window.
Sensor
Teach-in distance
Object
Switching Point 1
Window Width
Switching Point 2
• VT teach-in mode (foreground teach-in): Teach-in is performed while the sensor is aligned to the object.
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The switching distance is then automatically set to a distance which is slightly greater than the clearance between the sensor and the object. The sensor is thus switched for all objects whose distance to the sensor is equal to or less than the distance to the object used for the teach-in procedure.
Sensor
Teach-in distance
Object
Switching Point
• Change switching point: Shifts the switching point to the entered distance. In the case of foreground teach-in this is the teach-in distance described above, and in the case of window teach-in it’s the distance to the middle of the window.
• Hysteresis: Describes the distance between the switch-on and switch-off points. Due to the highly stable measured values provided by this range of sensors, hysteresis can be set very low – even down to
0.000 mm. This setting may be advisable in certain applications where an average filter is used.
• Switching reserve: Clearance between the teach-in distance and the sensor’s switching point. Switching reserve ensures reliable object detection even in the case of slightly fluctuating distances between the objects and the sensor.
• Window size: see window “teach-in”.
2 mA input load:
Input load is set to 2 mA as a default value, but it can be switched off in the dropdown menu (e.g. if the PLC has a high-impedance PNP output).
Input setting:
Operating voltage active: Pending tasks are executed when input voltage is on.
Operating voltage inactive: Pending tasks are executed when input voltage is off.
10. Maintenance Instructions
• This wenglor sensor is maintenance-free.
• It is advisable to clean the lens and the display, and to check the plug connections at regular intervals.
• Do not clean with solvents or cleansers which could damage the product.
11. Proper Disposal
wenglor sensoric GmbH does not accept the return of unusable or irreparable products. Respectively valid national waste disposal regulations apply to product disposal.
Subject to change without notice
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12. Appendix
12.1. Change Index, Operating Instructions
Version Date
1.0.0
Description/Change
26.03.2017 Initial version of the operating instructions
1.1.0
05.07.2017 • Expansion: measuring rate table
• Expansion: Ethernet wiring diagram
• Update: symbols explanation
• Update: supplementary products
• Expansion: system overview
• Expansion: “compensation when using screening grids”
• Update: calibration report
• Update: website
Associated product, hardware and firmware versions
PNBC product version: 1.0.0
PNBC hardware version: 3.3.0
PNBC firmware version: 3.30.6
PNBC product version: B / 1.30
PNBC hardware version: 3.4.0
PNBC firmware version: 3.50.1
.
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