Wenglor P1MH Series User manual

Operating Instructions
EN
Translation of the original operating instructions
Subject to change without notice
Available as PDF file only
Version 1.0.0
As of: 10/19/2023
www.wenglor.com
P1MHxxx
Reex Sensors with Background Suppression
High-End with Teach-In

2
Table of Contents
1. General��������������������������������������������������������������������������������������������������������������������������������������4
1.1 Information Concerning these Instructions .............................................................................................4
1.2 Explanation of Symbols ..........................................................................................................................4
1.3 Limitation of Liability ...............................................................................................................................5
1.4 Copyrights...............................................................................................................................................5
2. For Your Safety ������������������������������������������������������������������������������������������������������������������������6
2.1 Use for Intended Purpose.......................................................................................................................6
2.2 Use for Other than the Intended Purpose...............................................................................................6
2.3 Personnel Qualifications .........................................................................................................................6
2.4 Modification of Products ........................................................................................................................7
2.5 General Safety Precautions....................................................................................................................7
2.6 Laser/LED Warnings...............................................................................................................................7
2.7 Approvals and Protection Class.............................................................................................................7
3. Technical Data�������������������������������������������������������������������������������������������������������������������������� 8
3.1 Technical Data........................................................................................................................................8
3.1.1 Light Spot Diameter .....................................................................................................................9
3.1.2 Switching Distance Deviation.....................................................................................................10
3.2 Complementary Products .....................................................................................................................11
3.3 Layout ...................................................................................................................................................11
3.4 Control Panel ........................................................................................................................................12
3.5 Scope of Delivery..................................................................................................................................12
4. Transport and Storage�����������������������������������������������������������������������������������������������������������13
4.1 Transport ..............................................................................................................................................13
4.2 Storage .................................................................................................................................................13
5. Installation and Electrical Connection���������������������������������������������������������������������������������13
5.1 Installation.............................................................................................................................................13
5.2 Electrical Connection ............................................................................................................................14
5.3 Diagnosis ..............................................................................................................................................15
6. Settings�����������������������������������������������������������������������������������������������������������������������������������16
7. Functions Overview���������������������������������������������������������������������������������������������������������������17
7.1 Teach-In Mode......................................................................................................................................17
7.1.1 Foreground Teach-In .................................................................................................................17
7.1.2 Background Teach-In.................................................................................................................17
7.2 Pin E/A2 Function .................................................................................................................................18
7.2.1 External Teach-In Input (Default Setting)...................................................................................18
7.2.2 Error Output ...............................................................................................................................18
7.3 Additional Functions and Settings ........................................................................................................19
8. IO-Link�������������������������������������������������������������������������������������������������������������������������������������19
9. NFC������������������������������������������������������������������������������������������������������������������������������������������19
10� Maintenance Instructions������������������������������������������������������������������������������������������������������20
11. Proper Disposal���������������������������������������������������������������������������������������������������������������������� 20
Table of Contents

3Reflex Sensors with Background Suppression
12. Appendix���������������������������������������������������������������������������������������������������������������������������������20
12.1 List of Abbreviations ...........................................................................................................................20
12.2 Change Index for the Operating Instructions ......................................................................................20
12.3 Declarations of Conformity .................................................................................................................20

4General
1� General
1�1 Information Concerning these Instructions
• These instructions apply to products designated P1MHxxx.
• These instructions make it possible to use the product safely and efficiently.
• These instructions are an integral part of the product and must be kept on hand for the entire duration of its
service life.
• Local accident prevention regulations and national work safety regulations must be complied with as well.
• The product is subject to further technical development, and thus the information contained in these operat-
ing instructions may also be subject to change. The current version can be found at
www.wenglor.com in the product’s separate download area.
NOTE!
The operating instructions must be read carefully before using the product and must be kept
on hand for later reference.
1�2 Explanation of Symbols
• Safety precautions and warnings are emphasized by means of symbols and signal words.
• Safe use of the product is only possible if these safety precautions and warnings are adhered to.
The safety precautions and warnings are laid out in accordance with the following principle:
SIGNAL WORD!
Type and source of danger!
Possible consequences in the event that the hazard is disregarded.
• Measures for averting the hazard.
The meanings of the signal words, as well as the scope of the associated hazards, are listed below:
DANGER!
This signal word indicates a hazard with a high degree of risk which, if not avoided, results in
death or severe injury.
WARNING!
This signal word indicates a hazard with a medium degree of risk which, if not avoided, may
result in death or severe injury.
CAUTION!
This signal word indicates a hazard with a low degree of risk which, if not avoided, may result
in minor or moderate injury.
ATTENTION!
This signal word draws attention to a potentially hazardous situation which, if not avoided,
may result in property damage.
NOTE!
A note draws attention to useful tips and suggestions, as well as information regarding effi-
cient, error-free use.

5Reflex Sensors with Background Suppression
1�3 Limitation of Liability
• The product has been developed in consideration of the current state-of-the-art technology, as well as
applicable standards and guidelines. Subject to change without notice.
• A valid declaration of conformity can be accessed at www.wenglor.com in the product’s separate download
area.
• wenglor sensoric elektronische Geräte GmbH (hereinafter referred to as “wenglor”) excludes all liability in
the event of:
• Non-compliance with the instructions,
• Use of the product for purposes other than those intended,
• Use by untrained personnel,
• Use of unapproved spare parts,
• Unapproved modification of products.
• These operating instructions do not include any guarantees from wenglor with regard to the described pro-
cedures or specific product characteristics.
• wenglor assumes no liability for printing errors or other inaccuracies contained in these operating instruc-
tions unless wenglor was verifiably aware of such errors at the point in time at which the operating instruc-
tions were prepared.
1�4 Copyrights
• The contents of these instructions are protected by copyright law.
• All rights are reserved by wenglor.
• Commercial reproduction or any other commercial use of the provided content and information, in particular
graphics and
images, is not permitted without previous written consent from wenglor.

6For Your Safety
2� For Your Safety
2�1 Use for Intended Purpose
This wenglor product is intended for use in accordance with the following functional principle:
Reflex Sensors with Background Suppression
Reflex sensors with background suppression evaluate the light reflected by objects. As they operate according
to the angle measurement principle, the object’s color, shape, and surface finish have practically no influence
on the detection range. Even dark objects are reliably recognized against bright backgrounds. When the object
reaches the selected detection range, the sensor’s output is switched.
This product can be used in the following industry sectors:
• Special-purpose mechanical
engineering
• Heavy mechanical engineering
• Logistics
• Automotive industry
• Food industry
• Packaging industry
• Pharmaceuticals industry
• Plastics industry
• Woodworking industry
• Consumer goods industry
• Paper industry
• Electronics industry
• Glass industry
• Steel industry
• Aviation industry
• Chemicals industry
• Alternative energies
• Raw materials extraction
2�2 Use for Other than the Intended Purpose
• Not a safety component in accordance with 2006/42/EC (Machinery Directive).
• The product is not suitable for use in potentially explosive atmospheres.
• The product may be used only with accessories supplied or approved by wenglor, or in combination with
approved products. A list of approved accessories and combination products can be found at www.wenglor.
com on the product detail page.
DANGER!
Risk of personal injury or property damage in case of use for other than the intended
purpose!
Use for other than the intended purpose may lead to hazardous situations.
• Instructions regarding use for intended purpose must be observed.
2�3 Personnel Qualifications
• Suitable technical training is a prerequisite.
• In-house electronics training is required.
• Trained personnel who use the product must have (uninterrupted) access to the operating instruc-
tions.

7Reflex Sensors with Background Suppression
DANGER!
Risk of personal injury or property damage in case of incorrect
initial start-up and maintenance!
Personal injury and damage to equipment may occur.
• Adequate training and qualification of personnel.
2�4 Modification of Products
DANGER!
Risk of personal injury or property damage if the product is modified!
Personal injury and damage to equipment may occur. Noncompliance may result in
loss of the CE mark and voiding of the warranty.
• Modification of the product is impermissible.
2�5 General Safety Precautions
NOTE!
• These instructions are an integral part of the product and must be kept on hand for the
entire duration of its service life.
• In the event of possible changes, the respectively current version of the operating instruc-
tions can be accessed at www.wenglor.com in the product’s separate download area.
• Read the operating instructions carefully before using the product.
• The sensor must be protected against contamination and mechanical influences.
2�6 Laser/LED Warnings
The respective laser class or LED risk group is listed in the product’s technical data.
LASER CLASS 1
EN 60825-1:2014
Laser Class1 (EN60825-1)
Applicable standards and safety regulations must be observed.
2�7 Approvals and Protection Class

8Technical Data
3� Technical Data
3�1 Technical Data
Optical Data
Service life (ambient temp. = 25 °C) 100,000 h
Max. permitted ambient light 10,000 lux
Electrical Data
IO-Link supply voltage 18…30 V DC
Switching output voltage drop < 2 V
Switching output switching current 100 mA
Switching output residual current < 50 µA
Short-circuit proof Yes
Reverse polarity protected Yes
Overload-proof Yes
Lockable Yes
Interface IO-Link
IO-Link version 1.1
Protection class III
Mechanical Data
Housing material Plastic
Degree of protection IP67/IP68
Optic cover PMMA

9Reflex Sensors with Background Suppression
Order No.
Technical Data
P1MH
102 104 203 206
Principle Electronic background suppression
Detection range 200 mm
Setting range 40...200 mm 30...200 mm
Switching hysteresis < 5% < 10%
Light source Red light Laser (red)
Laser class (EN 60825-1) — 1
Risk group (EN 62471) 0 —
Light spot diameter See table 1 See table 2
Supply voltage 15...30 V DC
Current consumption (operating voltage = 24 V) < 20 mA
Temperature range −40…60°C −25...60°C
Temperature drift < 5%
Switching frequency 1,000 Hz 1,600 Hz
Response time 0.5 ms 0.31 ms
Switching frequency (2 switching outputs) 100 Hz
Response time (2 switching outputs) 5 ms
Setting method Teach-in/NFC
Output function PNP NO × ×
NPN NO × ×
Connection type Plug: M12x1, 4-pin
Connection diagram no. 865
Suitable connection equipment no. 360
3�1�1 Light Spot Diameter
Range 40 mm 100 mm 200 mm
Light spot diameter 9 mm 8 mm 7 mm
Table 1
Range 30 mm 100 mm 200 mm
Light spot diameter 2 mm 1.5 mm 1.5 mm
Table 2

10 Technical Data
3�1�2 Switching Distance Deviation
Typical characteristic curve based on white (90% remission)
P1MH102, P1MH104: P1MH203, P1MH206:
Sr = switching distance
dSr = change in switching distance
Black, 6% remission
Gray, 18% remission

11Reflex Sensors with Background Suppression
3�2 Complementary Products
wenglor can provide you with suitable connection equipment for your product.
Suitable mounting technology no.
Suitable connection equipment no.
2
IO-Link master
wTeach2 software DNNF005
3�3 Layout
= emitter diode
= receiver diode
M4 screw = 0.5 Nm
Dimensions specified in mm (1 mm = 0.03937")

12 Technical Data
3�4 Control Panel
2a = NFC interface
6c = configurable
06 = teach-in key
30 = switching status indicator / contamination warning
68 = supply voltage indicator
3�5 Scope of Delivery
• Sensor
• Safety precautions
• Mounting set 02

13Reflex Sensors with Background Suppression
4� Transport and Storage
4�1 Transport
Upon receipt of shipment, the goods must be inspected for damage in transit. In the case of damage, con-
ditionally accept the package and notify the manufacturer of the damage. Then return the device, making
reference to damage in transit.
4�2 Storage
The following points must be taken into consideration with regard to storage:
• Do not store the product outdoors.
• Store the product in a dry, dust-free place.
• Protect the product against mechanical impacts.
• Protect the product against exposure to direct sunlight.
ATTENTION!
Risk of property damage in case of improper storage!
The product may be damaged.
• Storage instructions must be complied with.
5� Installation and Electrical Connection
5�1 Installation
• Protect the product from contamination during installation.
• Observe all applicable electrical and mechanical regulations, standards, and safety rules.
• Protect the product against mechanical influences.
• Make sure that the sensor is mounted in a mechanically secure fashion.
• Specified torque values must be complied with (see “3. Technical Data” on page 8).
ATTENTION!
Risk of property damage in case of improper installation!
The product may be damaged.
• Installation instructions must be complied with.
CAUTION!
Risk of personal injury or property damage during installation!
Personal injury and damage to the product may occur.
• A safe installation environment must be assured.

14 Installation and Electrical Connection
5�2 Electrical Connection
Legend
Wire Colors according to IEC 60757
Platinum measuring resistor
not connected
Test Input
Test Input inverted
Trigger Input
Ground for the Trigger Input
Analog Output
Ground for the Analog Output
Block Discharge
Valve Output
Valve Control Output +
Valve Control Output 0 V
Synchronization
Ground for the 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
Black
Brown
Red
Orange
Yellow
Green
Blue
Violet
Grey
White
Pink
Green/Yellow
Supply Voltage +
Supply Voltage 0 V
Supply Voltage (AC Voltage)
Switching Output (NO)
Switching Output (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)
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
reserved
PT
PT
DANGER!
Risk of personal injury or property damage due to electric current.
Voltage-conducting parts may cause personal injury or damage to equipment.
• The electric device may be connected by appropriately qualified personnel only.

15Reflex Sensors with Background Suppression
5�3 Diagnosis
Causes triggering the contamination warning (flashing LED):
Display LED Diagnosis/Cause Elimination
Continuous flashing
at approx. 2.5 Hz
Contamination Carefully clean the optic cover with a cloth
Aged emitter diode Replace the sensor
Unreliable working range • Increase the sensor’s switching distance
• Reduce distance between sensor and object
Continuous flashing
at approx. 5 Hz
Short circuit Check electrical wiring and eliminate the short circuit
Over-temperature Disconnect the sensor from the supply voltage
and allow it to cool
Hardware error Replace the sensor
Contamination Warning Flowcharts
not detected not detecteddetected
beginning contamination
Object Object Object
not detected not detecteddetected
Reflex Mode no contamination
Object Object Object
Object
Switching Status
Indicator
Object
Switching Status
Indicator
Object
Switching Status
Indicator
not detected not detectednot detected
advanced contamination
Object Object Object
off offon
off off
off off
blinking
off

16 Settings
Required Action in Case of Fault:
NOTE!
• Shut down the machine.
• Analyze and eliminate the cause of error with the aid of the diagnostics information.
• If the error cannot be eliminated, please contact wenglor’s support department
• Do not operate in case of indeterminate malfunctioning.
• The machine must be shut down if the error cannot be definitively explained or properly
eliminated.
DANGER!
Risk of personal injury or property damage in case of non-compliance!
The system’s safety function is disabled. Personal injury and damage to equipment may
occur.
• Required action as specified in case of fault.
6� Settings
The switching distance to the object can be taught in for both outputs by pressing the teach-in key on the
sensor (the default setting is foreground teach-in).
Teach-In for Switching Output 1 (default setting)
1. Install the sensor in accordance with the installation instructions.
2. Press and hold the teach-in key until switching status indicator LED A1 starts to flash.
3. Release the teach-in key after 2 seconds.
4. The distance is taught in, and LED A1 lights up in order to confirm successful teach-in.
Teach-In for Switching Output 2 (two independent switching outputs can be set via IO-Link or NFC)
1. Install the sensor in accordance with the installation instructions.
2. Press and hold the teach-in key until switching status indicator LED A2 starts to flash.
3. Release the teach-in key after 5 seconds.
4. The distance is taught in, and LED A2 lights up in order to confirm successful teach-in.
NOTE!
If teach-in is conducted without an object or if the object is too far from the sensor,
the switching distance is set to the end of the setting range.

17Reflex Sensors with Background Suppression
7� Functions Overview
Further settings can be entered to the sensor via IO-Link or NFC.
7�1 Teach-In Mode
7�1�1 Foreground Teach-In
Teach-in is performed while the sensor is aligned to the object. 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.
Object
Sensor
Teach-in distance
Switching point
7�1�2 Background Teach-In
Teach-in is performed while the sensor’s light spot is aligned to the background. The switching distance is then
automatically set to a distance which is slightly less than the clearance between the sensor and the backg-
round. The sensor is thus switched whenever an object is located between the background and the sensor.
Object
Sensor
Teach-in distance
Switching point

18 Functions Overview
7�2 Pin E/A2 Function
The function of E/A2 can be configured either as an output or an input.
7�2�1 External Teach-In Input (Default Setting)
Teach in output A1 via the teach-in input.
1. Set the function pin E/A2 to external teach-in input.
With Ub setting active (default):
2. Apply 18...30 V to pin E/A2 for at least 1 second, but no more than 4 seconds.
3. As soon as voltage drops at the input, A1 is taught in.
With Ub setting inactive:
2. Disconnect pin E/A2 or apply 0 V to it for at least 1 second, but no more than 4 seconds.
3. As soon as voltage is applied to the input, A1 is taught in.
Locking
If the teach-in input is continuously activated, the teach-in key is locked and protected against inadvertent
changes.
1. Set the function pin E/A2 to external teach-in input.
With Ub setting active (default):
2. Permanently connect pin E/A2 to 18...30 V DC.
3. The sensor is protected against inadvertent changes caused by the teach-in key.
With Ub setting inactive:
2. Permanently disconnect pin E/A2 or connect it to 0 V.
3. The sensor is protected against inadvertent changes caused by the teach-in key.
7�2�2 Error Output
The error output is switched in the following cases:
• Contamination
• Aged emitter diode
• Unreliable working range
• Short circuit
• Over-temperature
• Hardware error

19Reflex Sensors with Background Suppression
7�3 Additional Functions and Settings
• PNP/NPN/push-pull
• NC/NO
• Switching hysteresis
• On/off-delay
• Mode of operation
• Switch emitted light off
• Test mode
• Data storage (IO-Link)
8� IO-Link
Process and parameters data, as well as the IODD, can be found at www.wenglor.com in the product’s sepa-
rate download area.
9� NFC
The devices can be set up and their parameters can be configured via the NFC interface with the aid of an
Android smartphone and wenglor’s Sensor Configurator app. Process data cannot be read out via NFC but
they’re available via IO-Link.
The wenglor app can be downloaded free of charge from Google Play and the App Store. Download the app
and follow the installation instructions.
Scan the code below to access the wenglor app directly.
The settings are selected via the app and are then transmitted to the sensor.
With the “Read” or “Write” mode activated, hold the smartphone’s antenna just above the sensor’s active NFC
surface.
NOTE!
• The position of the NFC antenna varies from one smartphone to the next.
• Refer to the smartphone’s operating instructions in order to determine the antenna’s exact
position.
If a connection isn’t established immediately, move the smartphone across the active surface until connection
is successful.
The sensor does not necessarily have to be connected to the supply voltage for data transmission;
that is to say, transmission is also possible in a de-energized state.

20 Maintenance Instructions
10�Maintenance Instructions
NOTE!
• This wenglor sensor is maintenance-free.
• Cleaning and inspection of the plug connections at regular intervals are advisable.
• Do not clean the sensor with solvents or cleaning agents that could damage the product.
• The product must be protected against contamination during initial start-up.
11�Proper Disposal
wenglor sensoric GmbH does not accept the return of unusable or irreparable products. The national waste
disposal regulations currently in force apply to product disposal.
12�Appendix
12�1 List of Abbreviations
Abbreviation Meaning
Tu Ambient temperature
Ub Supply voltage
IODD IO Device Description
MTTFd Mean Time To Dangerous Failure
12�2 Change Index for the Operating Instructions
Version Date Description/Changes
1.0.0 10/19/23 Initial version of the operating instructions
12�3 Declarations of Conformity
Declarations of conformity can be found on our website at www.wenglor.com in the product’s separate down-
load area.