RAYLASE MINISCAN II User manual

2-Axis Subsystems
for Laser Beam Deflection
MINISCAN II

This manual has been compiled by RAYLASE for its customers and employees.
RAYLASE reserves the right to change the information contained in this manual without prior
notice.
All rights are reserved. Duplication of this manual in whole or in part, particularly by photocop-
ying, scanning or imaging, and reproduction by any means are forbidden without the prior,
written consent of RAYLASE.

Contents
MN071 / v1.0.0 2-Axis Subsystems for Laser Beam Deflection 3
CONTENTS
1BASIC SAFETY INSTRUCTIONS..................................................................................4
1.1 Laser safety.....................................................................................................................4
1.2 Laser shutter....................................................................................................................4
1.3 Signs................................................................................................................................5
1.4 Classification of laser devices.........................................................................................6
1.5 Laser area .......................................................................................................................7
1.6 Special hazards caused by mirrors made of beryllium ...................................................8
1.7 Special hazards caused by lenses made of zinc selenide..............................................8
2BASIC INFORMATION...................................................................................................9
2.1 Introduction......................................................................................................................9
2.2 Intended use....................................................................................................................9
2.3 Delivery scope.................................................................................................................9
2.4 Module overview ...........................................................................................................10
2.5 Warranty........................................................................................................................11
2.6 Manufacturer .................................................................................................................11
2.7 Customer support..........................................................................................................11
2.8 Status LEDs...................................................................................................................12
3TECHNICAL DATA.......................................................................................................13
3.1 Rating plate code ..........................................................................................................13
3.1.1 Detailed Description ......................................................................................................14
3.2 Conformity with directives .............................................................................................14
4FUNCTIONAL DESCRIPTION .....................................................................................15
4.1 Laser beam deflection unit............................................................................................15
4.2 F-Theta lens ..................................................................................................................16
4.3 Analog interface ............................................................................................................17
4.4 Digital interface..............................................................................................................18
4.5 Power supply.................................................................................................................19
5INSTALLATION............................................................................................................20
6MAINTENANCE AND CLEANING...............................................................................21
6.1 Cleaning the housing.....................................................................................................21
6.2 Cleaning the optical system ..........................................................................................21
6.2.1 Instructions for cleaning lenses and protective glasses................................................22
6.2.2 Instructions for cleaning mirrors....................................................................................22
6.2.3 Special notes for mirrors made of beryllium and lenses made of zinc selenide ...........23
7TROUBLESHOOTING..................................................................................................24
8DISPOSAL....................................................................................................................25
9APPENDIX....................................................................................................................27

Chapter 1 Basic safety instructions
4 RAYLASE 2-Axis Subsystems for Laser Beam Deflection MN072 / v1.0.0
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 deflection unit is designed to deflect an input laser beam and output it again. The deflec-
tion unit 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 6, 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.

Basic safety instructions Chapter 1
MN071 / v1.0.0 2-Axis Subsystems for Laser Beam Deflection 5
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 plate and the identification code printed on it allow
the type of the deflection unit to be determined (page 13,
Rating plate code). The serial number and the part number are
also used to identify the deflection unit.
The CE symbol confirms the deflection unit's compliance with
European directives. It indicates that the deflection unit is ap-
proved for free trade within the EU.
The seal label warns against unauthorized opening of the de-
flection unit. If the 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 6,
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 8, 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 8, Special hazards caused by lenses made
of zinc selenide.

Chapter 1 Basic safety instructions
6 RAYLASE 2-Axis Subsystems for Laser Beam Deflection MN072 / v1.0.0
1.4 Classification of laser devices
The deflection unit 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 302.5 to 4,000 nm. The accessi-
ble laser radiation is not dangerous to the eyes, as long as the cross-section is not reduced
by optical instruments (magnifying glasses, lenses, telescopes).
2
The accessible laser radiation is in the visible spectrum (400 to 700 nm). Short-term expo-
sure (up to 0.25 s) is not dangers to the eyes. Additional radiation components outside the
wavelength range from 400-700 nm meet the requirements for class 1.
2M
The accessible laser radiation is in the visible spectrum from 400 to 700 nm. Short-term ex-
posure (up to 0.25 s) 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 400-700 nm meet the requirements for class
1M.
3R
The accessible laser radiation is in a wavelength range of 302.5 to 10,600 nm and is danger-
ous 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 400 to 700 nm.
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 deflection unit changes the position at which the beam is emitted
and the new beam output must be marked with a warning sign showing the appropriate classi-
fication.
Note: The deflection unit 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.

Basic safety instructions Chapter 1
MN071 / v1.0.0 2-Axis Subsystems for Laser Beam Deflection 7
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
deflection unit 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 deflection units in industrial plants. However, the applicable local and
national standards, rules and regulations are binding.
laser shutter
RAYLASE
deflection unit
cover
reflected laser beam
deflected laser beam
working surface
Laser area

Chapter 1 Basic safety instructions
8 RAYLASE 2-Axis Subsystems for Laser Beam Deflection MN072 / v1.0.0
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 23, 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 23, Special notes for mirrors made of beryllium and lenses made of zinc selenide

Basic information Chapter 2
MN071 / v1.0.0 2-Axis Subsystems for Laser Beam Deflection 9
2 BASIC INFORMATION
2.1 Introduction
Chapters 1 to 8 of this operating manual describe the general handling of deflection units from
the following series: MINISCAN II. See the data sheet in the appendix for the different fea-
tures. 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
deflection unit. You should therefore familiarize yourself with the content of this manual before
using the deflection unit 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 deflection unit. If the deflection unit 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 Delivery scope
Standard:
Deflection unit
Optional:
F-Theta lens, protection window
Control card
Connecting cable between control card and deflection unit
Software package

Chapter 2 Basic information
10 RAYLASE 2-Axis Subsystems for Laser Beam Deflection MN072 / v1.0.0
2.4 Module overview
The illustration below shows three typical laser devices that are equipped with RAYLASE and
customer-specific (indicated by dotted lines) modules.
RAYLASE SP-ICE control card
or
RAYLASE RLC-PCI control card
PC
Driver for RAYLASE control cards
Software:
RAYLASE weldMARK
or
RAYLASE RLScribe
or
customer-specific software Power supply
RAYLASE
Deflection unit
Laser system
RAYLASE
RLC-USB unit
PC
USB port
Driver for RAYLASE control cards
Software:
RAYLASE weldMARK
or
RAYLASE RLScribe
or
customer-specific software Power supply
RAYLASE
Deflection unit
Laser system
RS232
Driver for RAYLASE control cards
Software:
RAYLASE weldMARK
or
RAYLASE RLScribe
or
customer-specific software
PC
RAYLASE
SP-ICE control card
Power supply
Stand-alone hardware RAYLASE
Deflection unit
Laser system
Fig. 1
Module overview

Basic information Chapter 2
MN071 / v1.0.0 2-Axis Subsystems for Laser Beam Deflection 11
2.5 Warranty
The rights of the customer in respect of any defects in quality or deficiencies in title are gov-
erned by the general conditions of business of RAYLASE AG. These conditions are available
for review on our website.
Before returning the product, please request an authorization number from RAYLASE. Pack
the product in the original packaging or in packaging that provides equivalent protection for
shipping.
RAYLASE shall not be obliged to repair defects under the following circumstances:
If persons not authorized by RAYLASE have attempted to repair the product.
If persons not authorized by RAYLASE have modified the product.
If the product has been used improperly.
If the product has been connected to incompatible devices.
If the product has been damaged because of inadmissible high laser power or focusing the
laser on optical areas.
If the product has been damaged because of unqualified cleaning of the optical areas.
If the warranty period is expired.
Note: No implicit guarantee or warranty of suitability for specific purposes has been made.
RAYLASE is not responsible for damages arising from use of the product. Individual assem-
blies or other assemblies manufactured by RAYLASE may be subject to separate warranty
conditions. Refer to the corresponding manuals for further information.
2.6 Manufacturer
RAYLASE AG
Argelsrieder Feld 2+4
82234 Wessling
Germany
Tel.: [phone] - 88 98 - 0
Fax: [phone] - 88 98 - 10
http://www.raylase.de
E-mail: [e-mail]
2.7 Customer support
The RAYLASE support services are available for your problems either in respect to the deflec-
tion unit or this manual. Before calling for support, please make sure you refer to any
appropriate sections in the manuals on the supplied CD that may answer your questions.
If you need further assistance call RAYLASE customer service department, Monday through
Friday between 8 A.M. and 5 P.M. (Middle European Time).
The customer service personnel will be able to give you direct assistance and answers to your
questions.
Germany (Wessling)
+49 (0) 81 53 - 88 98 –0
E-Mail: [e-mail]
... ask for the customer service department

Chapter 2 Basic information
12 RAYLASE 2-Axis Subsystems for Laser Beam Deflection MN072 / v1.0.0
For deflection units with digital interface only
2.8 Status LEDs
The status LEDs allow you to check important functions and statuses on the deflection unit. If
the deflection unit has status LEDs (depends on type), they are located behind a window on
the rear of the deflection unit.
LED arrangement
Name
Color
Meaning
D1
red
CLK error
Data transmission faulty.
Cable defective.
D2
red
Parity error X
D3
red
Parity error Y
D4
green
Temp. status X
Temperature status availa-
ble if LEDs are lit.
D5
green
Temp. status Y
D6
orange
New data X
New data is being trans-
ferred if status LEDs are lit.
D7
orange
New data Y
D8
red
Error X
Galvanometer scanner or
driver electronics defective.
Power supply defective if
LEDs are flickering.
D9
red
Error Y
D10
green
+VCC
Power supplies are ready
for being used if LEDs are
lit.
D11
green
-VCC

Technical data Chapter 3
MN071 / v1.0.0 2-Axis Subsystems for Laser Beam Deflection 13
3 TECHNICAL DATA
This section outlines the common features of all deflection units. For type-specific features,
refer to the data sheets in the appendix. The individual data can be assigned using the rating
plate on the deflection unit in conjunction with the identification code (below, Rating plate
code).
3.1 Rating plate code
The type designation on the rating plate allows you to assign the deflection unit to the appro-
priate data sheet in the appendix. The data sheet contains the specific data for the deflection
unit.
Product line
MS = MINISCAN
│
│ Type
│ II = Series
│ │
│ │ Aperture
│ │ 07…30 [mm]
│ │ │
│ │ │ Wavelength
│ │ │ [AI] = 193nm
│ │ │ [TY] = 355nm
│ │ │ [405] = 405nm
│ │ │ [AG] = 400nm to 1064nm
│ │ │ [DY] = 532nm
│ │ │ [DY+Y] = 532nm & 1064nm
│ │ │ [780-980] = 780nm to 980nm
│ │ │ [780-980+AL] = 780nm to 980nm
│ │ │ [850-870+Y] = 850nm to 870nm & 1064nm
│ │ │ [900-1030+AL] = 900nm to 1030nm
││ │ [900-1100+AL] = 900nm to 1100nm
│ │ │ [915+975] = 915nm & 975nm
│ │ │ [975] = 975nm
│ │ │ [975+985+AL] = 975nm & 985nm
│ │ │ [Y] = 1064nm
│ │ │ [C*] = 9000nm to 11000nm
│ │ │ [AU] = C02 wideband
│ │ │ [C] = 10600nm
│ │ │ [AL] = Aluminum coating
│ │ │ │
│ │ │ │ Version deviation
│ │ │ │ VA1 = DSB 2 + 8320 + 9mm + no Neck + ±22,5°
│ │ │ │ VA2 = DSB 3 + 8320 + 9mm + no Neck + ±22,5°
│ │ │ │ VB1 = DSB 2 + 8320 + 10mm + no Neck + ±22,5°
│ │ │ │ VB2 = DSB 3 + 8320 + 10mm + no Neck + ±22,5°
│ │ │ │ VC1 = DSB 2 + 8320 + 9mm + Neck + ±22,5°
│ │ │ │ VC2 = DSB 3 + 8320 + 9mm + Neck + ±22,5°
│ │ │ │ VD1 = DSB 2 + 8320 + 10mm + Neck + ±22,5°
│ │ │ │ VD2 = DSB 3 + 8320 + 10mm + Neck + ±22,5°
│ │ │ │ VE1 = DSB 2 + 8320 + 9mm + no Neck + ±23,5°
│ │ │ │ VE2 = DSB 3 + 8320 + 9mm + no Neck + ±23,5°
│ │ │ │ VF1 = DSB 2 + 8320 + 10mm + no Neck + ±23,5°
│ │ │ │ VF2 = DSB 3 + 8320 + 10mm + no Neck + ±23,5°
│ │ │ │ VG1 = DSB 2 + 8320 + 10mm + no Neck + X:±23,4°, Y:±23,8° optical
│ │ │ │ VG2 = DSB 3 + 8320 + 10mm + no Neck + X:±23,4°, Y:±23,8° optical
│ │ │ │ VH1 = DSB 2 + 8320 + 10mm + Neck + X:±23,4°, Y:±23,8° optical
│ │ │ │ VH2 = DSB 3 + 8320 + 10mm + Neck + X:±23,4°, Y:±23,8° optical
│ │ │ │ V1…V9 = e.g. different mirror deflection range
│ │ │ │ │
│ │ │ │ │ Additional information or customer shortcut
└─ └─── └─ └────────── └─ └
GG-TTTT-AA [WWWWWWWWWWW] VV/D
Note: All mirrors have, in addition to the above coatings, a deflector for the wavelength 633nm.

Chapter 3 Technical data
14 RAYLASE 2-Axis Subsystems for Laser Beam Deflection MN072 / v1.0.0
3.1.1 Detailed Description
With the detailed description on the rating plate, the mirror material, the type of cooling, the
size of the mechanical design, the type of tuning, the type of connector can be determined. If
the scan head is a customized one then the detailed description contains the individual cus-
tomer number (DKdNr).
Mirror material
BE = Beryllium
BA = Beryllium/Alu
OG = Optical Glass
QU = Quarz
SI = Silicium
SC = SiliciumCarbid
│
│ Mechanical design
│
│ Mechanical design (cooling)
│ [N] = no cooling
│ [W] = water cooling
│ [W2] = water cooling with 90° angle
│ [A] = air-cooled
│ [WA] = water cooling and air cooling for mirrors
│ [W2A] = water cooling with 90° angle and air cooling for mirrors
│
│ Mechanical design (others)
│ [L] = Head with a lager input aperture for LTM
│ [F] = Head combined with FOCUSSHIFTER
│ │
│ │ Tuning
│ │ LN = low Noise
│ │ RA = short acceleration time
│ │ ST = minimal step time
│ │ VC = vector
│ │ ML = multiple tuning (default: LN)
│ │ MR = multiple tuning (default: RA)
│ │ MS = multiple tuning (default: ST)
│ │ │
│ │ │ Connector
│ │ │ D1 = 25pin D-Sub-connector
│ │ │ D2 = 25pin D-Sub-connector + 9pin D-Sub-connector
│ │ │ A1 = 25-pin D-Sub-connector
│ │ │ A2 = 25-pin D-Sub-connector+ 9-pin D-Sub-connector
│ │ │ │
│ │ │ │ Navision customer number
└─ └──── └─ └─ └────
SS-[MMM]-TT-CC/DKdNr
3.2 Conformity with directives
The deflection unit conforms to the requirements of the following directives:
EU Directive 2004/108/EC (EMC)
WEEE Directive 2012/19/EC
RoHS II 2011/65/EU
Directive 2006/42/EC on machinery
For details of conformity with other directives, contact RAYLASE.

Functional description Chapter 4
MN071 / v1.0.0 2-Axis Subsystems for Laser Beam Deflection 15
Fig. 2
Functional
principle
4 FUNCTIONAL DESCRIPTION
4.1 Laser beam deflection unit
The deflection unit can be used to deflect a laser beam in X and Y directions. This produces a
two-dimensional area within which a laser can be directed at any position. This area is known
as the "marking field" and is shown in Fig. 2. Deflection is performed by two mirrors, each of
which is moved by a galvanometer scanner. The deflection unit has a beam input, into which
the laser beam is fed, and a beam output, through which the laser beam is emitted from the
unit after deflection. Only suitable lasers can be fed into the beam input. Refer to the corre-
sponding data sheet in the appendix for details. Depending on the version, the beam output is
either open or fitted with an F-Theta lens or protection window (page 16, F-Theta lens).
1 Beam input
2 Galvanometer scanner with mirror
3 Beam output
4 Marking field

Chapter 4 Functional description
16 RAYLASE 2-Axis Subsystems for Laser Beam Deflection MN072 / v1.0.0
For deflection units fitted with an F-Theta lens only
4.2 F-Theta lens
The F-Theta lens is specially designed for use with two-axis deflection units. It focuses the
laser beam at optimum quality on any position in the marking field. At the same time, it pro-
vides partial optical compensation for the barrel-shaped distortion that is unavoidable when
using a two-axis deflection unit. The remaining distortion (see below) must be compensated
by the deflection unit drive.
Distortion caused by two-mirror
deflection.
Distortion caused by F-Theta
lens.
Distortion caused by two-
mirror deflection and F-Theta
lens.
1 Lens element incl. lens
2 Protection window
3 Clamp ring
4 Protective cap
Assembly instructions
oBefore assembly, check the lens and the protection window for dirt, scratches or cracks.
- If the optics is dirty, it must be cleaned (page 22, Instructions for cleaning lenses and
protective glasses).
- An element with a scratched or cracked lens and/or protection window must be
replaced. If necessary, the protection window can be replaced separately.
oScrew the lens into the beam output on the deflection unit until it is positioned securely.
Fig. 3
Field distortion
with and without
F-Theta lens
Fig. 4
Example: F-
Theta lens for
Nd:YAG

Functional description Chapter 4
MN071 / v1.0.0 2-Axis Subsystems for Laser Beam Deflection 17
For deflection units with analog interface only
4.3 Analog interface
The terminal assignment of the analog interface is outlined below. To determine whether the
deflection unit is fitted with an analog or a digital interface, refer to the code on the rating plate
(page 13, Rating plate code).
PIN
Signal
PIN
Signal
1
13
25
14
25 PIN D-SUB
1
+X COMMAND
14
-X COMMAND
2
SIGNAL GND
15
X POSITION
3
SIGNAL GND
16
Y POSITION
4
SIGNAL GND
17
-Y COMMAND
5
+Y COMMAND
18
nc
6
nc
19
nc
7
nc
20
nc
8
nc
21
nc
9
+VSS
22
+VSS
10
+VSS
23
GND Input
11
GND Input
24
GND Input
12
-VSS
25
-VSS
13
-VSS
---
---
To prevent errors, shielded cables should be used and signals must be input as shown below.
Fig. 5
Signal input

Chapter 4 Functional description
18 RAYLASE 2-Axis Subsystems for Laser Beam Deflection MN072 / v1.0.0
For deflection units with digital interface only
4.4 Digital interface
The deflection unit is connected to a RAYLASE control card using the 25-pin D-SUB connect-
or. All signals are compatible with RAYLASE's extended function XY2-100 standard.
If the deflection unit is also fitted with a 9-pin D-SUB connector, the power supply to the de-
flection unit comes from this additional connector. Deflection units that are not fitted with a 9-
pin D-SUB connector are powered by the digital interface. Refer to the following connection
table:
PIN
Signal
PIN
Signal
1
13
25
14
25 PIN D-SUB
1
I
-SENDCLOCK
14
I
+SENDCLOCK
2
I
-SYNC
15
I
+SYNC
3
I
-X CHANNEL
16
I
+X CHANNEL
4
I
-Y CHANNEL
17
I
+Y CHANNEL
5
nc
18
nc
6
O
-HEAD-STATUS
19
O
+HEAD-STATUS
7
nc
20
nc
8
nc
21
nc
9
nc1
+VSS1
22
nc1
+VSS1
10
nc1
+VSS1
23
GND Input
11
GND Input
24
GND Input
12
nc1
-VSS1
25
nc1
-VSS1
13
nc1
-VSS1
---
---
I = Diff. Input, nc = not connected, O = Diff. Output
1
) If there is no separate 9-pin D-SUB power input, the power supply is provided by the digital inter-
face. The power supply must be provided by the OEM customer.
Specifications
Diff. Input-, Diff. Input+
-
Diff. Output-, Diff. Output+
Input voltage
5V
Output low
max. 0.6V
max. 40mA
Input threshold
200mV
Output high
min. 2V @ 50Ω
max. 40mA
Hysteresis
typ. 45mV
ESD protection
±10kV
Input impedance
120Ω
ESD protection
±15kV

Functional description Chapter 4
MN071 / v1.0.0 2-Axis Subsystems for Laser Beam Deflection 19
For deflection units with 9-pin D-SUB connector only
4.5 Power supply
The 9-pin D-SUB connector provides the deflection unit with power. The power supply must
be provided by the OEM customer. Refer to the following connection and parameter table:
PIN
Designation
PIN
Designation
6
1
5
9
9 PIN D-SUB
1
-VSS
6
-VSS
2
-VSS
7
GND
3
GND
8
GND
4
+VSS
9
+VSS
5
+VSS
---
---

Chapter 5 Installation
20 RAYLASE 2-Axis Subsystems for Laser Beam Deflection MN072 / v1.0.0
5 INSTALLATION
Warning:
The laser beam can cause severe injury to the eyes and the skin. Note that
even apparently matt objects can reflect the wavelength of laser beams. All
personnel in the room must wear appropriate laser protection goggles and, if
necessary, protective clothing.
Never look directly at the laser beam, even when wearing protective gog-
gles.
The deflection unit may require the laser device to be assigned to a different
danger class (page 6,
Classification of laser devices).
The laser must be switched off during installation.
We recommend that the laser area is completely protected by an appropri-
ate working chamber. If this is not possible, appropriate protective measures
for the laser class must be implemented.
The mirrors in the deflection unit must move freely after installation of the
deflection unit. No components of the laser device may protrude into the de-
flection unit.
The laser device must be of sufficient quality that the laser beam can only be
emitted at the beam output on the deflection unit.
The "Laser radiation" accident prevention regulations (BGV B2) must be
observed.
Connecting cables may not be subjected to mechanical strain.
The deflection unit must be protected against moisture, dust and corrosive
vapors.
The optical components may only be touched when wearing suitable cotton
gloves.
The deflection unit must be protected against static discharge and strong
electromagnetic fields.
The power density of the input laser radiation may not exceed the maximum
permissible power density of the optical components of the deflection unit.
The beam path and the function of the deflection unit must be tested after
installation.
We recommend performing all tests with a danger class 1 or 2 laser to min-
imize the risk of injury. If this is not possible, the laser used must be set to
the lowest possible power. This setting must be secured against accidental
adjustment.
Procedure
oCarefully remove the protective cover over the beam input with a small screwdriver.
oTo install the deflection unit, insert locating pins into the corresponding holes and attach
the deflection unit to the prepared installation surface using screws.
Note: The deflection unit may only be installed using the pins and screws specified by
RAYLASE. Follow the scale drawing supplied.
oFor details of how to connect the deflection unit to a RAYLASE control card, refer to the
corresponding manual.