RAYLASE AXIALSCAN User manual

3-Axis Subsystems
for Laser Beam Deflection
AXIALSCAN, FOCUSSHIFTER

This manual has been compiled by RAYLASE for its customers and employees.
RAYLASE reserves the right to change the product described in this manual and the infor-
mation contained therein without prior notice.
The software included in the product and this manual itself are protected by copyright. All
rights are reserved. Duplication of this manual in whole or in part, particularly by photocopy-
ing, scanning or imaging, and reproduction by any means are forbidden without the prior, writ-
ten consent of RAYLASE.

Contents
MN025 / v2.1.0 3-Axis Subsystems for Laser Beam Deflection 3
CONTENTS
1BASIC SAFETY INSTRUCTIONS..................................................................................5
1.1 Laser safety.....................................................................................................................5
1.2 Laser shutter....................................................................................................................5
1.3 Signs................................................................................................................................6
1.4 Classification of laser devices.........................................................................................7
1.5 Laser area .......................................................................................................................8
1.6 Special hazards caused by mirrors made of beryllium ...................................................9
1.7 Special hazards caused by lenses made of zinc selenide..............................................9
2BASIC INFORMATION.................................................................................................10
2.1 Introduction....................................................................................................................10
2.2 Intended use..................................................................................................................10
2.3 Package contents..........................................................................................................10
2.4 Module overview ...........................................................................................................11
2.5 Warranty........................................................................................................................12
2.6 Manufacturer .................................................................................................................12
2.7 Customer Service..........................................................................................................12
2.8 Status LED of the linear translator module ...................................................................13
2.8.1 Analog linear translator modules...................................................................................13
2.8.2 Digital linear translator modules....................................................................................13
2.9 Status LEDs of the deflection unit.................................................................................14
2.9.1 Analog deflection units..................................................................................................14
2.9.2 Digital deflection units ...................................................................................................14
3TECHNICAL DATA.......................................................................................................15
3.1 Rating plate code ..........................................................................................................15
3.1.1 Deflection Unit...............................................................................................................16
3.1.2 Linear Translator Module ..............................................................................................17
3.1.3 Linear Translator Module (FOCUSSHIFTER)...............................................................17
3.2 Conformity with directives .............................................................................................18
4FUNCTIONAL DESCRIPTION .....................................................................................19
4.1 Laser beam subsystem.................................................................................................19
4.2 Functional principle of analog subsystems ...................................................................20
4.3 Functional principle of digital subsystems.....................................................................21
4.4 Protection window .........................................................................................................26
4.5 F-Theta lens ..................................................................................................................27
4.6 Interfaces of the linear translator module......................................................................28
4.6.1 Analog input...................................................................................................................28
4.6.2 Digital input....................................................................................................................29
4.6.3 Power supply.................................................................................................................30
4.6.4 Stepper motor interface.................................................................................................31
4.6.5 Digital output..................................................................................................................32
4.7 Interfaces of the deflection unit .....................................................................................33
4.7.1 Analog input...................................................................................................................33
4.7.2 Power supply.................................................................................................................34
4.7.3 Digital interface..............................................................................................................35
5INSTALLATION............................................................................................................36
5.1 Installing the linear translator module ...........................................................................37
5.2 Requirements to the cooling water................................................................................37
5.3 Requirements to the cooling air.....................................................................................37

4 RAYLASE 3-Axis Subsystems for Laser Beam Deflection MN025 / v2.1.0
5.4 Checking the beam coupling: AXIALSCAN (Standard), AXIALSCAN (motorized),
FOCUSSHIFTER (Standard).........................................................................................38
5.4.1 Preparation ....................................................................................................................38
5.4.2 Checking procedure.......................................................................................................39
5.4.3 Assembly .......................................................................................................................40
5.5 Checking the beam coupling: AXIALSCAN (water cooled)...........................................41
5.5.1 Preparation ....................................................................................................................41
5.5.2 Checking procedure.......................................................................................................42
5.5.3 Assembly .......................................................................................................................43
5.6 Manually adjusting the field size....................................................................................44
5.6.1 Preparation ....................................................................................................................44
5.6.2 Adjustment procedure:: AXIALSCAN (standard)...........................................................45
5.6.3 Adjustment procedure: AXIALSCAN (water cooled) .....................................................46
5.7 Motorized field size adjustment .....................................................................................47
6MAINTENANCE AND CLEANING............................................................................... 48
6.1 Cleaning the housing.....................................................................................................48
6.2 Cleaning the optical system...........................................................................................48
6.2.1 Instructions for cleaning lenses and protective glasses ................................................49
6.2.2 Instructions for cleaning mirrors.....................................................................................49
6.2.3 Special notes for mirrors made of beryllium and lenses made of zinc selenide............50
7TROUBLESHOOTING ................................................................................................. 51
8DISPOSAL.................................................................................................................... 52

Basic safety instructions Chapter 1
MN025 / v2.1.0 3-Axis Subsystems for Laser Beam Deflection 5
1 BASIC SAFETY INSTRUCTIONS
1.1 Laser safety
The user is responsible for safe operation and for safeguarding the surrounding area against
hazards that can be caused by laser radiation. OEM customers must ensure compliance with
all local and national regulations.
1.2 Laser shutter
The subsystem - consisting of a linear translator module and a deflection unit - is designed to
focus and deflect an input laser beam and output it again. The subsystem cannot block or
weaken the laser beam. To prevent unwanted emission of the laser beam, above a particular
danger class the laser device must be fitted with a shutter (page 7, Classification of laser
devices).
The laser device must be of sufficient quality that the laser beam can only be emitted at the
beam output on the deflection unit.

Chapter 1 Basic safety instructions
6 RAYLASE 3-Axis Subsystems for Laser Beam Deflection MN025 / v2.1.0
1.3 Signs
The following signs must be attached to the subsystem. These signs may not be removed.
Signs that have become illegible must be replaced.
The rating plates and the identification codes printed on them
can be used to determine the type of the linear translator mod-
ule and the deflection unit (page 15, Rating plate code). The
serial number and the item number are also used to identify the
subsystem.
The ground symbol identifies the ground connection on the
subsystem. This connection can be connected to the laser
housing via a plug connection to increase the interference re-
sistance.
The CE symbol confirms the subsystem's compliance with
European directives. It indicates that the subsystem is ap-
proved for free trade within the EU.
The seal labels warn against unauthorized opening of the
subsystem. If a seal is broken, all warranty claims against
RAYLASE are void.
A laser warning sign must be attached at the point where
laser radiation is emitted. This provides information about the
type of radiation, specific hazards and the degree of protection.
The laser warning sign is attached by the OEM customer in
accordance with the laser device's classification (page 7,
Classification of laser devices).
In the high-speed versions of the subsystem the mirrors are
made from beryllium.
To indicate this, these subsystems are labeled with the adja-
cent sign.
Also note page 9, Special hazards caused by mirrors made
of beryllium.
Lenses for CO2 laser deflection units with linear translator
modules are made of zinc selenide.
To indicate this, these subsystems are labeled with the adja-
cent sign.
Also note page 9, Special hazards caused by lenses made
of zinc selenide.

Basic safety instructions Chapter 1
MN025 / v2.1.0 3-Axis Subsystems for Laser Beam Deflection 7
1.4 Classification of laser devices
The subsystem can be fitted on various laser devices. Every laser device is assigned to a
particular danger class, which must be specified at the point where laser radiation is emitted,
e.g. using a warning sign. The following classifications are defined in DIN EN 60825-1:
Class
Description
1
The accessible laser radiation is not dangerous under reasonable foreseeable conditions.
1M
The accessible laser radiation is in the wavelength range of 302.5nm to 4,000nm. The ac-
cessible laser radiation is not dangerous to the eyes, as long as the cross-section is not re-
duced by optical instruments (magnifying glasses, lenses, telescopes).
2
The accessible laser radiation is in the visible spectrum (400nm to 700nm). Short-term expo-
sure (up to 0.25s) is not dangerous to the eyes. Additional radiation components outside the
wavelength range from 400nm-700nm meet the requirements for class 1.
2M
The accessible laser radiation is in the visible spectrum from 400nm to 700nm. Short-term
exposure (up to 0.25s) is not dangerous to the eyes, as long as the cross-section is not re-
duced by optical instruments (magnifying glasses, lenses, telescopes). Additional radiation
components outside the wavelength range from 400nm-700nm meet the requirements for
class 1M.
3R
The accessible laser radiation is in a wavelength range of 302.5nm to 10,600nm and is dan-
gerous to the eyes. The power or energy is a maximum of five times the limit for permissible
class 2 radiation in the wavelength range from 400nm to 700nm.
3B
The accessible laser radiation is dangerous to the eyes and frequently to the skin.
4
The accessible laser radiation is extremely dangerous to the eyes and dangerous to the skin.
Even diffuse scattered radiation can be dangerous. The laser radiation can cause fires or a
risk of explosion.
Note: Bear in mind that the subsystem changes the position at which the beam is emitted and
the new beam output must be marked with a warning sign showing the appropriate classifica-
tion.
Note: The subsystem can change the classification of the laser device, particularly if it is fitted
with a focusing lens. The laser device may require additional protective equipment as a result.

Chapter 1 Basic safety instructions
8 RAYLASE 3-Axis Subsystems for Laser Beam Deflection MN025 / v2.1.0
1.5 Laser area
For the purposes of accident prevention, the laser area is defined as the area in which the
maximum permitted radiation value can be exceeded. This is generally applicable for class
3B, 3R and 4 lasers. For class 1 to 2M laser devices, a laser area can be produced by focus-
ing the laser beam.
A sufficient beam intensity produces a laser area that covers the entire radiation angle of the
subsystem and includes the reflection from all objects that can be exposed to the radiation as
a result. Note that even apparently diffuse surfaces can reflect laser radiation and a laser
beam that has been reflected several times can still be dangerous.
The laser area must be indicated by corresponding warning signs or lamps and protected by
appropriate shading and interlock switches.
No flammable or explosive objects or liquids should be located in the laser area.
This operating manual interprets a selection of accident prevention regulations from the point
of view of using laser subsystems in industrial plants. However, the applicable local and na-
tional standards, rules and regulations are binding.
laser shutter
protection housing
reflected laser beam
deflected laser beam
operating surface
laser area
RAYLASE
linear translator module
RAYLASE
deflection unit
Fig. 1
Laser area

Basic safety instructions Chapter 1
MN025 / v2.1.0 3-Axis Subsystems for Laser Beam Deflection 9
1.6 Special hazards caused by mirrors made of beryllium
Beryllium mirrors can be destroyed by improper loading. This can lead to a release of berylli-
um dusts. These dusts can cause cancer, are toxic if swallowed and very toxic by inhalation.
Please observe the specified maximum applicable laser power in the data sheet.
Please note also, that soiled mirrors strengthen the absorption of laser power and thereby
increase the risk of destruction of the mirror.
page 50, Special notes for mirrors made of beryllium and lenses made of zinc selenide
1.7 Special hazards caused by lenses made of zinc selenide
Zinc selenide lenses can be destroyed by improper loading.This can lead to release of dust
with hydrogen selenide and selenium dioxide. These dusts can cause cancer, are toxic if
swallowed and very toxic by inhalation.
Please observe the specified maximum applicable laser power in the data sheet.
Please note also, that soiled lenses strengthen the absorption of laser power and thereby
increase the risk of destruction of the lens.
Therefore it is essential to ensure suitable suction in the production environment. In addition,
the outer protective glass of the F-Theta lens must be checked for dirt regularly and cleaned if
necessary. For non-removable deposits and after wear, which is caused by frequent cleaning,
the protective glass of the F-theta lens should be replaced.
page 50, Special notes for mirrors made of beryllium and lenses made of zinc selenide

Chapter 2 Basic information
10 RAYLASE 3-Axis Subsystems for Laser Beam Deflection MN025 / v2.1.0
2 BASIC INFORMATION
2.1 Introduction
Chapters 1 to 8 of this operating manual describe the general handling of subsystems the
following series: AXIALSCAN and FOCUSSHIFTER. See the data sheet in the appendix for
the different features. For details of the type you are using, refer to the rating plate.
This operating manual contains important information on qualified and safe handling of the
subsystem. You should therefore familiarize yourself with the content of this manual before
using the subsystem for the first time. In case of any queries, please contact RAYLASE.
The operating manual must be accessible to anyone who will be involved in developing, in-
stalling or using a laser device featuring the RAYLASE subsystem. If the subsystem is sold
on, this operating manual or an authorized copy must be passed on with it.
2.2 Intended use
The deflection unit is developed for two-dimensional deflection and focus laser radiation in a
suitable working range. If the materials to be processed generate toxic fumes, a secure suc-
tion must be ensured.
The deflection unit is designed for use in industrial environment and for use by trained profes-
sionals exclusively. It is made as a subassembly for laser devices. The deflection unit should
be operated only with the specified wavelengths, laser power and beam diameters listed in
the corresponding data sheet.
2.3 Package contents
Standard:
Subsystem consisting of linear translator module and deflection unit
Connecting cable between linear translator module and deflection unit (only digital subsys-
tems)
Optional:
Protection window
Control card (only digital subsystems)
Connecting cable between control card and deflection unit (only digital subsystems)
Software package (only digital subsystems)