Trumpf BEO D50 User manual

Operator's manual
BEO D50

Operator's manual
BEO D50
Original operator's manual
Edition 2020-01

Order Information Please specify when ordering this document:
Operator's manual
BEO D50
Edition 2020-01
Document number 22-50-17-CRen
Address for orders TRUMPF Laser GmbH
Vertrieb
Aichhalder Straße 39
78713 Schramberg
Fon: [phone] - 0
Fax: [phone] - 436
Internet: http://www.trumpf-laser.com
E-Mail: [email protected].com
Address for service TRUMPF Laser GmbH
Technischer Kundendienst
Aichhalder Straße 39
D-78713 Schramberg
Fon: [phone] - 37 444
Fax: [phone] - 148
Internet: http://www.trumpf-laser.com
E-Mail: [email protected]
E-Mail: [email protected]
© TRUMPF Laser GmbH

Good to know
These operating instructions contain important information on
the focusing optics, its functions, the necessary adjustment work
and upkeep. This information will help you operate the laser
product safely, avoid any risks, reduce service costs and break-
down times and increase its reliability and service life.
In addition to the Operator's manual, observe the regional regu-
lations regarding accident prevention, laser safety, and environ-
mental protection.
The laser product Operator's manual must be read and
observed by every person who is commissioned with working on
the laser product.
Examples of work on the laser product:
■Operation
■Maintenance
■Transport
■Operator's manual for the laser device.
■Software manual.
■Interface descriptions.
■Dimensional drawings.
■Data sheets.
■Acceptance protocol.
■Operator's manual for a camera which is operated on focus-
ing optics.
22-50-17-CRen 2020-01 Good to know I
What do the operating
instructions contain?
Other regulations
Who is the operator's
manual for?
Documentation for further
reference

II Good to know 2020-01 22-50-17-CRen

Table of contents
Safety
1 For your safety 1‐3
2 Warning instructions 1‐4
3 Terms 1‐5
4 Hazards 1‐8
4.1 Laser light 1‐8
4.2 Gases, aerosols, dusts 1‐9
4.3 Thermal energy 1‐10
Fire, explosion 1‐10
Temperature of the workpiece 1‐10
Hot surfaces on the focusing optics 1‐10
4.4 Noise 1‐11
5 Safety of the laser product 1‐12
5.1 Laser beam emission openings 1‐12
5.2 EMERGENCY STOP push-button 1‐14
5.3 Labels and warning signs 1‐14
Labels on the focusing optics 1‐15
Labels in the range of the focusing optics 1‐17
6 Measures of the user 1‐19
6.1 Intended use 1‐19
6.2 Technical measures 1‐20
6.3 Organizational measures 1‐21
6.4 Observing standards and regulations 1‐22
6.5 Behavior in certain operating stages 1‐22
6.6 Behavior in case of emergency 1‐23
6.7 Selecting and qualifying personnel 1‐23
6.8 Instructing the personnel 1‐24
6.9 Wearing personal safety equipment 1‐24
22-50-17-CRen 2020-01 Table of contents 0‐1
Chapter 1

Assembly and installation
Assembly and installation 2‐3
1 Integration into a system environment 2‐4
1.1 Fastening 2‐4
1.2 Clearances 2‐6
1.3 Example 2‐7
2 Electrical insulation 2‐10
2.1 Measuring the insulation resistance 2‐11
3 Installation 2‐12
3.1 Overview of the connections 2‐12
3.2 Principles, general rules 2‐14
3.3 Safe combination of laser device, laser light
cable and focusing optics
2‐15
Characteristics of safe combinations 2‐15
Dangers due to impermissible combina-
tions
2‐15
Information required to assess the safety
of a combination
2‐17
Examples of safe combinations 2‐19
3.4 Connection of the laser light cable (LLK) 2‐20
Connecting the laser light cable to the
focusing optics
2‐22
3.5 Connections for cooling unit 2‐26
3.6 Connections for crossjet, purging gas and
MVE gas
2‐30
3.7 Connection for proximity switch (BEO D50
only, without protective glass monitoring unit)
2‐34
3.8 Lighting connection 2‐35
3.9 Connection for line laser 2‐36
3.10 Camera connection 2‐36
3.11 Other BEO D50 Smart connections 2‐37
4 Ambient conditions 2‐40
4.1 Determining the necessary cooling water tem-
perature
2‐41
0‐2Table of contents 2020-01 22-50-17-CRen
Chapter 2

5 Using shielding gas 2‐42
5.1 Gases during laser welding 2‐42
5.2 What is shielding gas used for? 2‐42
5.3 Shielding gases 2‐43
Nitrogen (N2) 2‐44
Argon (Ar) 2‐44
Helium (He) 2‐44
Recommendations 2‐44
5.4 Shielding gas supply 2‐45
Linear gas supply 2‐46
Linear gas supply with a lateral MDE noz-
zle
2‐47
Aerator nozzle gas supply 2‐48
Other methods 2‐49
5.5 Arrangement of the shielding gas nozzles 2‐50
Pulsed lasers 2‐50
cw lasers 2‐51
Welding at edges 2‐52
5.6 Dosing shielding gas 2‐52
5.7 Effect of the shielding gas 2‐55
Description
1 Models and options 3‐3
1.1 Minimum configuration 3‐3
1.2 Available modules 3‐4
2 Components 3‐6
2.1 Focusing optics module overview 3‐6
2.2 Requirements 3‐13
2.3 Collimator with plug receptacle 3‐14
2.4 Protective sleeve 3‐16
2.5 Dual focus optics 3‐17
2.6 Connecting piece 3‐18
2.7 BEO D50 Smart interface module 3‐19
2.8 Observation optics 3‐20
2.9 Pyrometer outlet 3‐22
22-50-17-CRen 2020-01 Table of contents 0‐3
Chapter 3

2.10 Interface for sensor module 3‐23
2.11 Lighting module 3‐24
2.12 External lighting 3‐25
2.13 Line laser 3‐26
2.14 Lenses for welding 3‐26
BEO D50 Smart cassette receptacle with
protective glass cassettes
3‐30
Crossjet and MVE nozzle 3‐32
2.15 Connection plates 3‐34
2.16 Focusing optics examples 3‐36
3 Functional description 3‐41
3.1 Beam guideway of the laser light 3‐41
3.2 Beam guideway in the observation optics 3‐46
3.3 Connection to the laser device 3‐48
Adjustment work
General notes on adjustment work 4‐3
1 Aligning the focusing optics 4‐4
1.1 Aligning the focusing optics 4‐4
2 Adjusting the focal position 4‐6
2.1 Setting zero position 4‐7
2.2 Taking objects out of the beam guideway 4‐8
2.3 Adjusting the working distance 4‐8
Determining the focal position with the
working laser
4‐10
Measuring the working distance 4‐11
Adjusting the focal position by means of
the line laser
4‐13
2.4 Adjusting the distance caliper 4‐13
2.5 Adjusting the line laser 4‐14
2.6 Defocusing the focusing optics 4‐16
2.7 Adjusting the focusing optics in the x-y direc-
tion.
4‐19
Adjusting the focusing optics, zero position 4‐20
Adjusting the focusing optics to a new
workpiece
4‐20
0‐4Table of contents 2020-01 22-50-17-CRen
Chapter 4

3 Adjusting the dual focus optics 4‐21
3.1 Turning the focal points around the center
axis
4‐21
3.2 Adjusting the splitting ratio 4‐22
4 Adjusting the Gen 2 observation optics 4‐24
4.1 Adjusting the picture sharpness of the cam-
era
4‐24
4.2 Adjusting the cross hairs 4‐25
4.3 Setting the fiber end of the pyrometer 4‐26
Maintenance
1 General notes 5‐3
2 Material 5‐5
2.1 Wearing parts 5‐5
2.2 Optics cleaning kit 5‐5
2.3 Consumables 5‐6
2.4 Disposal 5‐6
2.5 Tools and additional equipment 5‐7
3 Laser light cable (LLK) 5‐9
3.1 Disconnecting the LLK from the focusing
optics
5‐9
4 Welding optics 5‐12
4.1 Cleaning the protective glass in the lens pro-
tection (process protective glass)
5‐13
4.2 Changing the protective glass of the lens pro-
tection (process protective glass)
5‐14
4.3 Replacing the protective glass of the lens
protection (additional protective glass)
5‐15
4.4 Cleaning the protective glass in the process
protective glass cassette
5‐18
4.5 Changing the protective class of the process
protective glass cassette
5‐19
4.6 Changing the protective glass of the objec-
tive protective glass cassette
5‐23
22-50-17-CRen 2020-01 Table of contents 0‐5
Chapter 5

4.7 Cleaning the splash guard 5‐27
4.8 Mounting the crossjet in a different position 5‐27
4.9 Cleaning the attachment parts 5‐29
4.10 Replacing the sensor block 5‐29
4.11 Replacing the protective glass monitoring
module
5‐30
4.12 Cooling water 5‐31
Draining cooling water from the focusing
optics
5‐31
Eliminating faults
1 Conduct in case of malfunctions 6‐2
1.1 Step-by-step procedure: 6‐2
1.2 Troubleshooting 6‐2
1.3 Observing messages 6‐3
1.4 Malfunctions, possible causes and measures 6‐4
2 Informing the service department 6‐8
0‐6Table of contents 2020-01 22-50-17-CRen
Chapter 6

Chapter 1
Safety
1 For your safety 1‐3
2 Warning instructions 1‐4
3 Terms 1‐5
4 Hazards 1‐8
4.1 Laser light 1‐8
4.2 Gases, aerosols, dusts 1‐9
4.3 Thermal energy 1‐10
Fire, explosion 1‐10
Temperature of the workpiece 1‐10
Hot surfaces on the focusing optics 1‐10
4.4 Noise 1‐11
5 Safety of the laser product 1‐12
5.1 Laser beam emission openings 1‐12
22-50-17-CRen 2020-01 Safety 1‐1

5.2 EMERGENCY STOP push-button 1‐14
5.3 Labels and warning signs 1‐14
Labels on the focusing optics 1‐15
Labels in the range of the focusing optics 1‐17
6 Measures of the user 1‐19
6.1 Intended use 1‐19
6.2 Technical measures 1‐20
6.3 Organizational measures 1‐21
6.4 Observing standards and regulations 1‐22
6.5 Behavior in certain operating stages 1‐22
6.6 Behavior in case of emergency 1‐23
6.7 Selecting and qualifying personnel 1‐23
6.8 Instructing the personnel 1‐24
6.9 Wearing personal safety equipment 1‐24
1‐2Safety 2020-01 22-50-17-CRen

1. For your safety
This chapter contains important hints for a safe operation of the
laser product. Read the hints carefully before putting the laser
product into operation.
This chapter summarizes information that the operator must
know to ensure a safe operation of the laser device.
Information on the following factors is indicated:
■Hazards that may arise from the laser product.
■Devices and measures which we have already realized as
the manufacturer to ensure a safe operation of the laser
product.
■Instructions that the user must realize in order to operate
the laser product safely in the work environment and to pro-
tect the health of persons.
The operator's manual contains descriptions and instructions for
the efficient use of the laser product. When hazards may arise,
the instructions are preceded by warning hints warning of the
consequences.
Note
The operator must permantently keep the operator's manual at
the place where the laser product is used.
22-50-17-CRen 2020-01 For your safety 1‐3
Safety is essential
Chapter safety
Hazards and warning hints

2. Warning instructions
A warning instruction is information that:
■Names the type and source of a danger.
■Indicates possible consequences in case the danger is not
avoided.
■Gives instructions for how to avoid any damage.
One of the signal words "Danger", "Warning", "Caution", or
"Attention" indicates the severity of the possible consequences
in case the instructions are not observed.
"Danger" warns against a great danger. If not avoided, it leads
to death or serious injuries.
"Warning" warns against a danger that may cause medium or
serious injuries with permanent damage.
"Caution" warns against a danger that may cause light or
medium injuries without permanent damage.
"Attention" warns against possible material damage.
Example of a warning instruction:
Eyes and skin may be exposed to laser radiation if the
laser light is not placed under a protective cover!
Laser light can burn the skin. Direct or scattered laser light
can permanently damage your eyes.
ØTake the necessary protective measures as specified below,
depending on the laser class.
It is absolutely necessary to observe and follow the warning
instructions!
1‐4Warning instructions 2020-01 22-50-17-CRen
WARNING

3. Terms
Laser products include devices, systems or components used
for generating, transmitting and using laser light.
TRUMPF products summarized under the term "laser product"
include:
■Lasers (beam sources)
■Laser machines
■Laser workstations
■Laser devices
■Laser light cables
■Focusing optics
Laser light is electromagnetic radiation with wavelengths from
100 nm to 1 mm produced as the result of controlled stimulated
emission.
Laser is an acronym, short for: Light Amplification by Stimulated
Emission of Radiation.
The term "Laser" summarizes all components directly used for
generating laser light:
■Resonator, comprising rear mirror and output coupling mirror
■Laser material
■Pump source
Other components of lasers might include:
■Modulators
■Q-switch
■Converter for generating other wavelengths
With certain forms of lasers, the components mentioned above
can be integrated as structures in a basic material.
Examples:
Rear mirror and output coupling mirror:
■ in fiber lasers as Bragg gratings
■in diode lasers as surfaces in semiconductor crystals.
Laser machines are machines the main purpose of which is to
weld or cut material with laser light or to process it in any other
way. In laser machines, movements of the workpieces and focus-
ing optics are mainly controlled automatically.
Laser workstations are facilities at which workpieces are mainly
processed manually using laser light.
22-50-17-CRen 2020-01 Terms 1‐5
Laser product
Laser light
Laser
Laser machine
Laser workstation

Laser devices include all components required for generating
laser light.
Laser device components include:
■Laser with pump source
■Energy supply for the pump source, e.g. diode power supply,
lamp power supply
■Control
■Cooling unit
Depending on the type and maximum power of the laser device,
it may have other components, such as:
■Additional components in the mains distribution
■Cabinet cooler
■Air cleaner or recirculating air dryer system
■Gas purging unit
The pump light cable is a flexible connection element between
supply unit and laser head. The pump light is guided in a light
guide from the pump diode to the laser head. Around the light
guide there are different devices to avoid uncontrolled exit of
laser light and to protect the light guide.
The laser light cable is a flexible connecting element between
laser device and focusing optics. The laser light is guided from
the laser to the focusing optics in a light guide. For ultrashort
pulse lasers, only so-called hollow-core fibers are suitable due
to the high peak power, where the intensive laser pulse is not
conducted in glass, but in a vacuum, air or another filling gas.
The light guide is surrounded by several devices that prevent an
uncontrolled escape of laser light and protect the light guide.
Focusing optics are optical assemblies. Their main function is to
form the laser beam so that it achieves its maximum power den-
sity at a defined point, the focal point.
In the reflective focusing optics (RFO), the conical laser beam
coming out of the laser light cable hits the focusing mirror,
which guides the laser beam through the exit port and merges it
in the focal point.
The programmable focusing optics (PFO) includes one or two
scanner mirrors which allow the laser beam to be guided over a
processing field. It is thus possible to produce, for example,
welding seams without moving the focusing optics and the work-
piece.
The distance of the focal point from a certain edge or surface of
the focusing optics is called working distance. The working dis-
tance of the focusing optics determines the distance in which
the workpieces must be positioned so that they can be proc-
essed with the laser.
1‐6Terms 2020-01 22-50-17-CRen
Laser device
Pump light cable
Laser light cable
Focusing optics

The laser beam guidance deflects the output radiation of the
laser to the workpiece.
A safety circuit is an electric circuit for monitoring protective cov-
ers and doors of laser protective casings and cabins. When the
contacts are looped in, the safety circuit should always be
closed when all monitored covers and doors are closed.
When a contact interrupts the safety circuit because a door is
opened, for example, laser light emission is immediately stopped.
The safety circuit, as a central shutter of a laser device, stops
emission of laser lights on all light paths of the laser device.
The safety circuit of just one light path only stops light emis-
sion on this light path. Laser light can still be emitted on the
other light paths if these safety circuits are closed.
22-50-17-CRen 2020-01 Terms 1‐7
Laser beam guidance
Safety circuit

4. Hazards
The laser product has been built in accordance with state-of-the-
art standards and the recognized safety rules. However, it might
cause hazards for persons or material property during use. If
you do not observe the accident prevention regulations, these
hazards may result in damage.
The following overview indicates the possible hazards that might
be caused by your laser product.
■It indicates how TRUMPF has reduced the risk by applying
constructive measures.
■You, as the user, can ensure safe operation of the laser
product by taking additional measures during its use.
4.1 Laser light
Solid state lasers generate laser light in the near infrared spec-
tral range (900 nm – 1250 nm). Using converters, the laser light
can also be produced in the visible range (400 - 700 nm) or in
the ultraviolet spectral region (< 400 nm).
Laser light may be hazardous to eyes and skin.
Depending on the severity of the danger, laser products are clas-
sified in laser classes.
The classification of the laser product in laser classes is defined
internationally in the EN 60825-1 and IEC 60825 standards.
The meaning of the laser classes is described briefly below. The
precise definition listing limit values can be found in the stand-
ards stated above.
Class 1 means that the laser light of this laser product is not
dangerous in standard operation.
The laser device is classified as class 1M (acc. to EN 60825-1)
if there may be a risk when observing laser light through optical
instruments.
A class 2 laser product only emits in the visible spectral region
(400 - 700 nm). A brief exposure does not involve any risk.
Deliberate staring in the beam might be dangerous for your
eyes. Active reactions are sufficient to protect your eyes against
damage: Avert your eyes, move your head or close your eyes.
The laser device is classified as class 2M (acc. to EN 60825-1)
if there may be a risk when observing laser light through optical
instruments.
1‐8Hazards 2020-01 22-50-17-CRen
Class 1
Class 2