Wenglor SEMG4 Series User manual

EN
Operating Instructions
Translation of the Original Operating Instruction
Subject to change without notice
Available as PDF version only
Status: 04.10.2021
Version: 11
www.wenglor.com
SEMG412−SEMG442
Type 4 Safety Light Curtain

2Table of Contents
Table of Contents
1. General 5
1.1 Information Concerning these Instructions 5
1.2 Explanations of Symbols 5
1.3 List of Abbreviations 6
1.4 Limitation of Liability 6
1.5 Copyrights 6
2. For Your Safety 7
2.1 Use for Intended Purpose 7
2.2 Use for Other than the Intended Purpose 7
2.3 Personnel Qualifications 8
2.4 Modification of Products 8
2.5 General Safety Precautions 8
2.6 Approvals and protection class 8
3. Technical Data 9
3.1 Response Times 11
3.2 Dimensional Drawings Safety Light Curtain 12
3.3 Housing dimensions, mounting technology 14
3.4 Connection Diagrams 15
3.5 Complementary Products (see catalog) 16
3.6 Layout 17
3.7 Control Panel 18
3.8 Scope of Delivery 18
4. Transport and Storage 19
4.1 Transport 19
4.2 Storage 19
5. Installation and Electrical Connection 20
5.1 System Overview 20
5.2 Installation 22
5.2.1 Installation with ZEMX001 Mounting Bracket 22
5.2.2 Installation with ZEMX002 Mounting Bracket 22
5.2.3 Installation with ZEMZ001 Mounting System 23
5.3 Securing the Danger Zone 24

Type 4 Safety Light Curtain 3
5.4 Safety Clearance 25
5.4.1 Safety Clearance for Vertical Approach to the Safety Field 25
5.4.2 Safety Clearance for horizontal approach to the Safety Field 28
5.4.3 Safety Clearance for Angular Approach to the Safety Field 28
5.5 Clearance from Reflective Surfaces 29
5.6 Multiple Systems 30
5.7 Deflection Mirror 31
5.8 Electrical Connection 32
5.9 Optical Alignment 32
5.10 Diagnostics 33
6. Functions 34
6.1 Default Settings 34
6.2 Function definition 34
7. Settings 37
7.1 Initial Start-Up 37
7.2 Overview of All Functions 43
7.3 Adjusting Range 44
7.3.1 Low Range 44
7.3.2 High Range 45
7.4 Safety Mode Without Contactor Monitoring 46
7.5 Safety Mode With Contactor Monitoring 47
7.6 Start-Up and Restart Inhibit Without Contactor Monitoring 49
7.7 Start-Up and Restart Inhibit With Contactor Monitoring 51
7.8 Signal output 53
7.9 Test Function 55
7.10 Restoring Default Settings 56
8. Testing 58
8.1 Testing Prior to Initial Start-Up 58
8.2 Annual Inspection 59
8.3 Regular Inspections 60
9. Maintenance 62
10. Shutdown 62

4Table of Contents
11. Proper Disposal 62
12. Appendix 63
12.1 Change Index, Operating Instructions 63
12.2 Overview of Receiver Parameters Configuration 64
12.3 Display during Normal Operation 64
12.3.1 Receiver 64
12.3.2 Emitter 66
12.4 Display in Case of Error 67
12.4.1 Receiver 67
12.4.2 Emitter 69
12.5 Initial Start-Up Checklist 70
12.6 Connection Examples 72
12.6.1 Restart Inhibit Without Contactor Monitoring at SEMG4xxx 72
12.6.2 Restart Inhibit and Contactor Monitoring at SEMG4xxx 73
12.6.3 Restart Inhibit Without Contactor Monitoring at Safety Relay 74
12.6.4 SEMG4xx With Safety Mode Without Contactor Monitoring 75
12.7 EU Declaration of Conformity 76

Type 4 Safety Light Curtain 5
1. General
1.1 Information Concerning these Instructions
• These instructions are valid for the following products: SEMG4xx: Safety Light Curtain sales set consisting
of emitter and receiver, SEMG5xx: Safety Light Curtain emitter, SEMG6xx: Safety Light Curtain receiver.
• They 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.
NOTE:
The operating instructions must be read carefully before using the product and must be kept
on hand for later reference.
1.2 Explanations of Symbols
• Safety precautions and warnings are emphasized by means of symbols and attention-getting 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:
ATTENTION-GETTING 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 attention-getting words, as well as the scope of the associated hazards, are listed
below:
DANGER!
This word indicates a hazard with a high degree of risk which, if not avoided, results in death
or severe injury.
WARNING!
This word indicates a hazard with a medium degree of risk which, if not avoided, may result
in death or severe injury.
CAUTION!
This word indicates a hazard with a low degree of risk which, if not avoided, may result in
minor or moderate injury.
ATTENTION:
This 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
efficient, error-free use.

General
6
LED Symbols
Descriptions of statuses of diagnostics LEDs
LED is lit up continuously.
The LED can have any status (lit up or off).
LED blinks.
LED is off.
1.3 List of Abbreviations
Abbreviation Meaning
ESPE Electro-sensitive protective equipment
SFH Safety field height
EDM External device monitoring = contactor monitoring
RES Restart inhibit
OSSD Output signal switching device
1.4 Limitation of Liability
• The product has been developed in consideration of the current state-of-the-art and applicable standards
and guidelines. Subject to change without notice.
• 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 replacement parts
• Unapproved modification of products
• These operating instructions do not imply any guarantee from wenglor with regard to the described
procedures or specific product characteristics.
• wenglor assumes no liability for printing errors or other inaccuracies contained in these operating
instructions, unless wenglor was verifiably aware of such errors at the point in time at which the
operating instructions were prepared.
1.5 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 particu-
lar graphics and images, is not permitted without previous written consent from wenglor.

Type 4 Safety Light Curtain 7
2. For Your Safety
2.1 Use for Intended Purpose
The product is based on the following functional principle:
Safety Light Curtain
The Safety Light Curtain monitors the safety field between the emitter and the receiver. If the safety field is
interrupted by an obstruction, a switching command is triggered. This switching command either prevents
initialization of a hazardous machine motion, or stops an action which has already been started.
Use of the Light Curtain is only permissible if:
• Hazardous motion can be stopped by electrical means using the light curtain’s safety output
• Adequate detection of possible obstruction is assured with existing resolution
• Use of a type 4 Light Curtain with performance level PL e is permissible
This product can be used in the following industry sectors:
• Special machinery manufacturing • Electronics industry
• Heavy machinery manufacturing • Glass industry
• Logistics • Steel industry
• Automotive industry • Printing industry
• Food industry • Aviation industry
• Packaging industry • Construction industry
• Pharmaceuticals industry • Chemicals industry
• Clothing industry • Agriculture industry
• Plastics industry • Alternative energy
• Woodworking industry • Raw materials extraction
• Consumer goods industry • Other
• Paper industry
2.2 Use for Other than the Intended Purpose
• The product is not suitable for use in potentially explosive atmospheres.
• Only accessories supplied or approved by wenglor may be used with the product.
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.
• Observe instructions regarding use for intended purpose.

For Your Safety
8
2.3 Personnel Qualifications
• Suitable technical training is a prerequisite.
• In-house electronics training is required.
• Technical knowledge and experience concerning use of the guard is required in order to assure correct
evaluation of the safe working status during assembly, initial start-up and electrical installation.
• Trained personnel must have uninterrupted access to the operating instructions.
CAUTION!
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
NOTE!
Modification of the product is impermissible.
Non-observance may result in loss of the CE marking and the guarantee may be rendered
null and void.
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.
• Read the operating instructions carefully before using the product.
• Protect the sensor against contamination and mechanical influences.
• Additional measures may be necessary in order to assure that the ESPE does not fail in a
dangerous fashion due to other types of light which are used in a special application
(e.g. emission due to welding sparks or the effects of stroboscope lights).
2.6 Approvals and protection class
AOPD
21BS

Type 4 Safety Light Curtain 9
3. Technical Data
Order No. Emitter: SEMG531–SEMG542
Receiver: SEMG631–SEMG642
Emitter: SEMG512–SEMG522
Receiver: SEMG612–SEMG622
Optical Data
Range 0.2…6 m 0.25…14 m
Safety field height 250…1811 mm 326…1827 mm
Resolution 14 mm 30 mm
Aperture angle ± 2.5°
Emitter wavelength Typically 630 nm
Coated optics Yes
Resistance to extraneous light 10,000 lux
Electrical Data
Supply power
19.2 to 28.8 V DC (SELV, PELV power pack), it must be possible to
bridge power failures of 20 ms or more (EN 60204-1)
For US and Canada:
Device to be supplied by a certified Class 2 power supply that
complies with the requirements according NEC and CEC.
Protection class III (SELV/PELV)
Fusing of supply voltage, inputs Max. 2 A
Power consumption, receiver
(operating voltage = 24 V) ≤200 mA (without load)
Power consumption, emitter
(operating voltage = 24 V) ≤100 mA
Internal fuse 2 A
Temperature range SFH ≤1061 mm: −25…55° C
SFH > 1061 mm: −5…55° C −25…55° C
Storage temperature −25…60° C
Relative humidity ≤ 95% (non-condensing)
Vibration resistance 5 g (10 ... 55 Hz)
Shock resistance 10 g/16 ms
Signal output
Signal output Semiconductor, PNP
Number of signal outputs 1
Signal output switching current ≤100 mA
Signal output voltage drop ≤ 2.5 V
Safety outputs
Safety outputs Semiconductor, PNP
Number of safety outputs 2
Safety output switching current ≤300 mA
Safety output leakage current ≤2 mA
Voltage drop at safety output ≤2.3 V
Max. voltage in off state < 2 V
Max. capacitive load ≤1 µF

Technical Data
10
Order No. Emitter: SEMG531–SEMG542
Receiver: SEMG631–SEMG642
Emitter: SEMG512–SEMG522
Receiver: SEMG612–SEMG622
Max. Inductive load ≤2.2 mH
Test pulse width, rate < 300 µs, typically 20 ms
Restart time after reach-in Typically 2 × response time
Inputs
Voltage range –30…30 V DC
Switching thresholds LOW: < 5 V, < 2 mA
HI: > 11 V, 6…30 mA
Activation duration
Acknowledgment input 0.1…4 s
EDM response/drop-off time 350 ms
Short-circuit proof Yes
Reversed polarity and overload proof Yes
Max. cable length
< 35 m/0.25 sq. mm
< 50 m/0.34 sq. mm
< 72 m/0.50 sq. mm
Mechanical
Housing material Aluminum
Protection IP65, IP67
Emitter connection 300 mm cable, 4/5-pin M12
Emitter cable diameter 5 mm
Receiver connection 300 mm cable, 8-pin M12
Receiver cable diameter 6 mm
Min. bending radius 5 × cable diameter (permanently laid)
10 × cable diameter (dynamic installation)
Technical Safety Data
ESPE type (EN 61496) 4
Performance level
(EN ISO 13849-1:2008) Cat. 4 PL e
Safety integrity level (EN 62061) SIL cl 3
PFHd 1,6 E-8 1/h
Service life TM
(EN ISO 13849-1:2008) 20 a
Functions
Finger protection Yes No
Hand protection No Yes
Safety mode (Automatic Operation) Yes
Restart inhibit Yes
Contactor monitoring Yes