IPG YLR Series User manual

P21-010078, REV. A 02/07/2012 DCO 524
YLR-SERIES USER GUIDE

YLR-SERIES USER GUIDE
IPG PHOTONICS | IPG PHOTONICS CORPORATION
I
Notices:
Copyright © IPG Photonics Corporation. All rights reserved. You may not copy, reproduce, transmit,
store in a retrieval system or adapt this publication, in any form, in any media or by any means,
without the prior written permission of IPG Photonics Corporation (IPG), except as allowed under
applicable copyright laws. Permitted copies shall bear the same copyright and proprietary notices
that were contained on the original version.
All information contained in this document is subject to change and revision without notice. IPG
believes that the information provided is accurate and reliable; however IPG makes no warranty or
representation, express or implied regarding this document, including without limitation the implied
warranties of merchantability or fitness for a particular purpose. Further, IPG does not assume
responsibility for use of the information contained in this document or for any infringement of patents
or other rights of third parties that may result from its use. IPG shall not be liable for errors contained
in this document or for incidental, consequential, indirect or special damages in connection with the
furnishing, performance or use of this material.
IPG grants no license, directly or indirectly under, any patent or other intellectual property rights from
use of the information provided herein.
IPG, IPG Photonics and the IPG Logo are registered trademarks of IPG Photonics Corporation. We
have identified words that we consider as trademarks. Neither the presence nor absence of
trademark identifications affects the legal status of any trademarks.
Patent Rights
This product is patented. Please see product for more information.
Preface
Please take time to read and understand this User Guide and familiarize yourself with the operating
and maintenance instructions that we have compiled for you before you use the product. We
recommend that the operator read the section titled “Safety Information”prior to operating the
product.
This User’s Guide should stay with the product to provide you and all future users and owners of the
product with important operating, safety and other information.
UUS Export Control Compliance (for US products only)
IPG’s policy and business code is to comply strictly with the U .S. export control laws.
Export and re-export of lasers manufactured by IPG are subject to the US Export Administration
Regulations administered by the Department of Commerce, Bureau of Industry and Security.
The applicable restrictions vary depending on the specific product involved, intended application, the
product destination and the intended user. In some cases, an individual validated export license is
required from the US Department of Commerce prior to resale or re-export of certain products.
Please contact IPG, if you are uncertain about the obligations imposed by US law.

YLR-SERIES USER GUIDE
II
IPG PHOTONICS CORPORATION | IPG PHOTONICS
I
IP PG G P PH HO OT TO ON NI IC CS S C CO OR RP PO OR RA AT TI IO ON N
IPG delivers fiber lasers in all domains of laser material processing, medical engineering and scientific
institutes and universities. IPG is the acceptedmarket leader in this modern fiber laser technology. The
IPG Photonics Corporation contains subsidiaries in many European, Asiatic and American developed
counties. Production sites for these lasers are in both Oxford, Massachusetts in the US and in Burbach,
Germany with a verticalrange of manufacture of 90%. This helps to guarantee a high grade of
competence and reliability.
High output power, excellent beam quality, high stability and mobility are outstanding predicates of the
fiber laser. The superiority of the fiber laser isefficiency, flexibility, modularity, thermal and mechanical
robustness that comes along with a simple constructive assembly. Further important characteristicsfor the
industrial use are low running costs.
Economic feasibility studies show, that it is possible to realize faster, better and more cost-effective
industrial applications with high power fiber laser. IPG has the production capacity for a production in high
piece numbers. Additional information can be found at Uwww.ipgphotonics.comU.
IPG Companies with present service

YLR-SERIES USER GUIDE
IPG PHOTONICS | TABLE OF CONTENTS
I
T
TA AB BL LE E O OF F C CO ON NT TE EN NT TS S
IPG PHOTONICS CORPORATION...........................................................................................................................................................................II
TABLE OF CONTENTS .............................................................................................................................................................................................I
LIST OF FIGURES.....................................................................................................................................................................................................I
LIST OF TABLES......................................................................................................................................................................................................II
INTRODUCTION ....................................................................................................................................................................................................1
SAFETY INFORMATION.........................................................................................................................................................................................2
SAFETY CONVENTIONS 2
SAFETY FEATURES AND COMPLIANCE TO GOVERNMENT REQUIREMENTS 1
Compliance to Regulatory Standards (on applicable units)...........................................................................................................1
Electromagnetic Compatibility ........................................................................................................................................................1
Laser Classification...........................................................................................................................................................................1
Key Control .......................................................................................................................................................................................2
Safety Label Locations......................................................................................................................................................................2
Laser Radiation Emission Indicator .................................................................................................................................................4
GENERAL SAFETY INSTRUCTIONS 4
Specular Reflections .........................................................................................................................................................................4
Equipment and Solvents ..................................................................................................................................................................5
Safety Recommendations................................................................................................................................................................5
Optical Safety ................................................................................................................................................................................... 5
Electrical Safety ................................................................................................................................................................................6
Environmental Safety....................................................................................................................................................................... 6
ADDITIONAL SAFETY RESOURCES 8
L'INFORMATION DE SÛRETÉ (SAFETY INFORMATION)........................................................................................................................................9
CONVENTIONS DE SÛRETÉ 9
Dispositifs et conformité de sûreté aux conditions de gouvernement........................................................................................10
COMPATIBILITÉ ÉLECTROMAGNÉTIQUE 10
Classification de Laser....................................................................................................................................................................10
Contrôle des Clés ............................................................................................................................................................................11
Endroits D'étiquette de Sûreté.......................................................................................................................................................11
Indicateur D'émission de Rayonnement de Laser.........................................................................................................................13
INSTRUCTIONS DE SÛRETÉ GÉNÉRALES 13
Réflexions Spéculaires....................................................................................................................................................................13
Équipement et Dissolvants.............................................................................................................................................................14
Recommandations de Sûreté ........................................................................................................................................................14
Sûreté Optique................................................................................................................................................................................15
Sûreté Électrique ............................................................................................................................................................................15
Sûreté Environnementale ..............................................................................................................................................................15
RESSOURCES ADDITIONNELLES DE SÛRETÉ 17
PRODUCT DESCRIPTION .....................................................................................................................................................................................18
MODEL CONFIGURATION 18
Laser Model Designation Codes ....................................................................................................................................................18
CERTIFICATION 19
FRONT PANEL VIEW 20
REAR PANEL VIEW 21
OPTICAL OUTPUT FIBER TERMINATIONS 21
Machines with a Connector...........................................................................................................................................................21

YLR-SERIES USER GUIDE
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TABLE OF CONTENTS | IPG PHOTONICS
Machines with a Collimator...........................................................................................................................................................22
SPECIFICATIONS..................................................................................................................................................................................................23
OPTICAL SPECIFICATIONS 23
ELECTRICAL SPECIFICATIONS 23
ENVIRONMENT SPECIFICATIONS 23
EXTERNAL LAYOUT AND DIMENSIONS 23
UNPACKING INSTRUCTIONS...............................................................................................................................................................................24
UNPACKING PROCEDURE FOR CARDBOARD BOX 24
UNPACKING PROCEDURE FOR WOODEN CRATES 25
USING YOUR DEVICE...........................................................................................................................................................................................28
PRECAUTIONS 28
ELECTRICAL POWER CONNECTION 28
INTERLOCK DESCRIPTION 29
EXTERNAL INTERFACES 29
Interface Wire Specification...........................................................................................................................................................29
INITIAL POWER-UP SEQUENCE 31
Power-up Sequence........................................................................................................................................................................31
Turning on the device in Local mode.............................................................................................................................................32
Turning on the device in Remote mode........................................................................................................................................32
CONTROL MODES OF OPERATION 33
OPERATION MODES 34
TOUCH-SCREEN DISPLAY 36
COMPUTER INTERFACE / COMMANDS..............................................................................................................................................................42
RS-232 CONFIGURATION 42
ETHERNET TCP/IP INTERFACE 42
Interface Commands......................................................................................................................................................................42
PULSE SHAPING SOFTWARE OPTION.................................................................................................................................................................51
INTRODUCTION 51
PC HOST REQUIREMENTS 52
Ethernet TCP/IP Interface ..............................................................................................................................................................52
RS-232 Configuration.....................................................................................................................................................................52
INSTALLING THE SOFTWARE 52
COMPUTER CONFIGURATION PROCEDURE 53
Ethernet Configuration Option......................................................................................................................................................53
Serial Communication Port Configuration Option........................................................................................................................53
QUICK START GUIDE 55
PULSE GENERATOR (WAVEFORM MODE) 56
PULSE EDITING 64
Sketching a Pulse............................................................................................................................................................................64
Shifting a Pulse ...............................................................................................................................................................................65
Pulse Comparison...........................................................................................................................................................................65
PULSE STORAGE AND RECALL 66
On Laser..........................................................................................................................................................................................66
On Host PC......................................................................................................................................................................................66
SINGLE PULSE ACTIVATION 67
SEQUENCE EDITING 68
Building a Sequence .......................................................................................................................................................................68
Modifying a Sequence....................................................................................................................................................................68
SEQUENCE STORAGE AND RECALL 68
On the Laser....................................................................................................................................................................................68

YLR-SERIES USER GUIDE
IPG PHOTONICS | TABLE OF CONTENTS
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On the Host PC................................................................................................................................................................................68
Pulse Sequence Activation.............................................................................................................................................................69
Remote Control Interface...............................................................................................................................................................69
TROUBLESHOOTING ...........................................................................................................................................................................................70
ERROR MESSAGES ON THE DISPLAY AND STATUS BITS 70
SERVICE...............................................................................................................................................................................................................72
SERVICE AND REPAIRS 72
SERVICEABLE ITEMS 72
Replacing Fuses..............................................................................................................................................................................72
Replacing the Filter Media.............................................................................................................................................................72
OPTICAL FIBER CONNECTOR INSPECTION AND CLEANING GUIDE 74
WARRANTY.........................................................................................................................................................................................................80
LIMITED EXPRESS PRODUCT WARRANTIES 80
44BWARRANTY LIMITATIONS 80
45BLIMITATION OF REMEDIES AND LIABILITIES 80
46BSOFTWARE 81
PRODUCT RETURNS............................................................................................................................................................................................86
RETURNS TO THE UNITED STATES 86
Shipping Instructions:.....................................................................................................................................................................86
RETURNS TO GERMANY 87
GLOSSARY ...........................................................................................................................................................................................................88

YLR-SERIES USER GUIDE
IPG PHOTONICS | LIST OF FIGURES
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L
LI IS ST T O OF F F FI IG GU UR RE ES S
Figure 1: Safety Label Locations............................................................................................................................................................... 3
Figure 2: Dewpoint Table .........................................................................................................................................................................7
Figure 3: Endroits D'étiquette de Sûreté................................................................................................................................................12
Figure 4: Tableau Point de rosée............................................................................................................................................................16
Figure 5: Front Panel Layout ..................................................................................................................................................................20
Figure 6: Rear Panel Layout....................................................................................................................................................................21
Figure 7: Optical Output Fiber Connector..............................................................................................................................................22
Figure 8: Fiber End with Collimator........................................................................................................................................................22
Figure 9: Unpacking Cardboard Box......................................................................................................................................................25
Figure 10: Unpacking Wooden Crates...................................................................................................................................................27
Figure 11: Power Cord Connection ........................................................................................................................................................28
Figure 12: QCW Pulse Operational Range.............................................................................................................................................34
Figure 13: Main Menu Screen................................................................................................................................................................36
Figure 14: Submenu Menu Screens........................................................................................................................................................37
Figure 15: Fiber Connector Mounted on IPG Microscope.....................................................................................................................75
Figure 16: Fiber Cap and Sleeve Removed.............................................................................................................................................75
Figure 17: Fiber End-face Cleaning ........................................................................................................................................................77
Figure 18: Installing the Fiber.................................................................................................................................................................78
Figure 19: Fiber Quartz Block Inspection...............................................................................................................................................79

YLR-SERIES USER GUIDE
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LIST OF TABLES | IPG PHOTONICS
L
LI IS ST T O OF F T TA AB BL LE ES S
Table 1: User Guide Safety Symbols.........................................................................................................................................................2
Tableau 2: Symboles de sûreté de guide d'utilisateur.............................................................................................................................9
Table 3: Laser Models and Designation Codes......................................................................................................................................19
Table 4: 24-pin Connector Pinout...........................................................................................................................................................30
Table 5: 8-pin Connector Pinout.............................................................................................................................................................31
Table 6: Local and Remote Control Modes............................................................................................................................................33
Table 7: RS-232 Parameters...................................................................................................................................................................42
Table 8: Ethernet Interface Pinout.........................................................................................................................................................42
Table 9: Interface Commands ................................................................................................................................................................50
Table 10: Ethernet Interface Pinout.......................................................................................................................................................52
Table 11: RS-232 Parameters.................................................................................................................................................................52
Table 12: Configuring the Local Area Connection for Ethernet............................................................................................................54
Table 13: PSG Pulse Editor Main Screen................................................................................................................................................56
Table 14: PSG Pulse Editor Sub-Menu Screens......................................................................................................................................57
Table 15: Sequence Editor Menu Screen ...............................................................................................................................................61
Table 16: Remote Control Menu Screen................................................................................................................................................63
Table 17: Error Messages and Status Bits .............................................................................................................................................71
Table 18: Replacement Parts .................................................................................................................................................................73

YLR-SERIES USER GUIDE
IPG PHOTONICS | INTRODUCTION
1
I
IN NT TR RO OD DU UC CT TI IO ON N
The IPG YLR-Series product line has been developed to meet industrial market demands of efficient
reliable maintenance-free high power lasers. YLR products are diode-pumped ytterbium fiber lasers with
output powers ranging from 20 W up to 1.5 kW operating at the wavelength region of 1060 –1100 nm.
These lasers can be airor water-cooled. The wall plug efficiency of an YLR laser typically exceeds 30%.
All IPG YLR-Series fiber lasers are Class 4 laser products and are designed and tested with safety in
mind. By following this User‟s Guide and applying sound laser safety practices, it will be a safe and reliable
device.
Laser light exhibits unique characteristics that pose safety hazards that are not normally associated with
other light sources. Therefore, all operators and people near the laser must be aware of these special
hazards.
In order to ensure the safe operation and optimal performance of the product, please follow these
warnings in addition to the other information contained elsewhere in this manual. These safety precautions
must be observed during all phases of operation, maintenance, and service of this instrument.
Operators are urged to adhere to these recommendations and to apply sound laser safety practices at all
times. Never open the device. There are no user serviceable parts (internally), equipment or assemblies
associated with this product. All internal service and maintenance will be performed only by qualified IPG
personnel.

YLR-SERIES USER GUIDE
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SAFETY INFORMATION | IPG PHOTONICS
S
SA AF FE ET TY Y I IN NF FO OR RM MA AT TI IO ON N
Safety Conventions
This User Guide uses various wordsand symbols (Table 1) are designed to call your attention to hazards
or important information.
S
SY YM MB BO OL L
D
DE ES SC CR RI IP PT TI IO ON N
Or
WARNING: Refers to a potential personal hazard.
( Electrical) ( Laser radiation)
It requires a procedure that, if not correctly followed, mayresult in bodily harm to you
and/or others. Do not proceed beyond the WARNING sign until you completely
understand and meet the required conditions.
CAUTION: Refers to a potential product hazard. It requires a procedure that, if not
correctlyfollowed, mayresult in damage or destruction to the product or components.
Do not proceed beyond the CAUTION sign until you completely understand and meet
the required conditions.
NO SYMBOL
IMPORTANT: Refers to any information regarding the operation of the product. Please
do not overlook this information.
Table 1: User Guide Safety Symbols

YLR-SERIES USER GUIDE
IPG PHOTONICS | SAFETY INFORMATION
1
Safety Features and Compliance to Government
Requirements
Compliance to Regulatory Standards (on applicable units)
EMC Emissions:
EN 55011:2009 + A1:2010
CISPR 11:2009 + A1:2010
FCC Class A
EMC Immunity:
EN 61000-3-2:2006+A1:2009+A2:2009
EN 61000-3-3:2008
EN 61326-1:2006
EN 61000-4-2:2009
EN 61000-4-3:2006 + A1:2007 + A2:2010
EN 61000-4-4:2004+A1:2010
EN 61000-4-5:2006
EN 61000-4-6:2009
EN 61000-4-11:2004
EMC Other:
This Class A digital apparatus complies with Canadian ICES-003.
Electrical Safety:
EN 61010-1:2001
Laser Safety:
EN 60825-1:2007
CDRH 21 CFR 1040.10
Functional Safety:
EN ISO 13849-1:2008 + A1:2009 Cat.3 / PL d
Electromagnetic Compatibility
Compliance of this laser with the EMC requirements is certified by the CE mark if identified by the CE label
(Figure 1).
The European requirements for Electromagnetic Compliance are specified in the “EMC Directive”.
Conformance to the “EMC” is achieved through compliance with the harmonized standards EN55011 for
emission and EN 61326-1:2006 for immunity. The laser meets the emission requirements for Class A,
group 1 as specified in EN55011.
Laser Classification
The governmental standards and requirements specify that lasers must be classified according to their
output power or energy and the laser wavelength. All YLR-Series lasers are classified as a high power
Class 4 laser instrument under 21 CFR, subchapter J, part II, 1040.10(d). According to the European
Community standards, this device is classified as Class 4 based on EN60825-1, clause 9 This product
emits invisible laser radiation at or around a wavelength of 1070 nm, and the total light power radiated from the
optical output is greater than 20 to 1500 W (depending on model) per optical output port. Direct or indirect
exposure of this level of light intensitymay cause damage to the eye or skin. Despite the radiation being
invisible, the beam may cause irreversible damage to the retina and/or cornea. Appropriate and approved
laser safety eyewear mustbe worn at all times while the laser isoperational.

YLR-SERIES USER GUIDE
2
SAFETY INFORMATION | IPG PHOTONICS
Warning: You must use appropriate laser safety eyewear when operating this device. The
selection of appropriate laser safety eyewear requires that the end user accurately identify the
range of wavelengths emitted from this product. If the device is a tunable laser or Raman
product, it will emit light over a range of wavelengths.
The end user must ensure that the laser safety eyewear used protects against light emitted by the
device over its entire range of wavelengths. Please review the safety labeling on the product
(Figure 1: Safety Label Locations) and verify that the personal protective equipment (e.g.
enclosures, viewing windows or viewports, eyewear, etc.) being utilized is adequate for the output
power and wavelength ranges listed on the product.
Suppliers include LaserVision USA, Kentek Corporation and Rockwell Laser Industries offer this
laser safety material and/or equipment. There are other laser personal protective equipment
providers. IPG provides the names of these providers solelyas a convenience and does not
endorse or recommend any of them, or their products or services. Furthermore, IPG assumes no
liability for any of their recommendations, products or services.
Whether the laser is used in a new installation or to retrofit an existing system, the end user is
solely responsible for determining the suitability of all personal protective equipment.
Caution: Do not install or terminate fibers or collimators when laser is active.
Key Control
The instrument cannot be turned on or operated until the system keyswitch is in the ON or REM position
[CFR 1040.10 (f)(4)/EN 60825-1, clause 4.6].
Warning: Use of controls or adjustments, or performance of procedures other than those
specified herein, may result in hazardous radiation exposure.
Caution: Use of the system in a manner other than that described herein may impair the
protection provided by the system.
Safety Label Locations
Figure 1: Safety Label Locations show the required laser safety labels and the locations. These include
warning labels indicating removable or displaceable protective housings, aperturesthrough which laser
radiation is emitted and labels of certification and identification [CFR 1040.10(g), CFR 1040.2, and CFR
1010.3/EN60825-1, Clause 5].

YLR-SERIES USER GUIDE
IPG PHOTONICS | SAFETY INFORMATION
3
Figure 1: Safety Label Locations
1. Aperture Label
2. FDA Compliance (for US
product)
3. Class 2M Laser Product Label
for Guide Laser
4. Class 4 Laser Product
(Models: YLR-20, YLR-30)
4. Class 4 Laser Product
(Models: YLR-50)
4. Class 4 Laser Product
(Models: YLR-100)
4. Class 4 Laser Product
(Models: YLR-200, YLR-300)
4. Class 4 Laser Product
(Models: YLR-400, YLR-500,
YLR-600, YLR-700)
4. Class 4 Laser Product
(Models: YLR-1000)
MAX. AVERAGEOUTPUT POWER: 10,000W CW
WAVELENGTHRANGE: 900-1200nm
VISIBLE AND/OR INVISIBLELASER RADIATION
AVOID EYEOR SKIN EXPOSURETO
DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
PerIEC 60825-1: 2007-03; 21 CFR 1040:10(g)
MAX. AVERAGE OUTPUT POWER:1000W CW
WAVELENGTHRANGE: 900-1200nm
VISIBLE AND/OR INVISIBLELASER RADIATION
AVOID EYEOR SKIN EXPOSURE TO
DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
PerIEC 60825-1: 2007-03; 21 CFR 1040:10(g)
MAX. AVERAGE OUTPUT POWER:500W CW
WAVELENGTHRANGE: 900-1200nm
VISIBLE AND/OR INVISIBLE LASER RADIATION
AVOID EYEOR SKINEXPOSURE TO
DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
PerIEC 60825-1: 2007-03; 21 CFR 1040:10(g)
MAX. AVERAGE OUTPUT POWER:250W CW
WAVELENGTHRANGE: 900-1200nm
VISIBLE AND/OR INVISIBLELASER RADIATION
AVOID EYEOR SKIN EXPOSURETO
DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
PerIEC 60825-1: 2007-03; 21 CFR 1040:10(g)
MAX. AVERAGE OUTPUT POWER:100WCW
WAVELENGTHRANGE: 900-1200nm
VISIBLE AND/OR INVISIBLELASER RADIATION
AVOID EYEOR SKIN EXPOSURE TO
DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
PerIEC 60825-1: 2007-03; 21 CFR 1040:10(g)
MAX. AVERAGE OUTPUT POWER:50WCW
WAVELENGTHRANGE: 900-1200nm
VISIBLE AND/OR INVISIBLELASER RADIATION
AVOID EYEOR SKINEXPOSURE TO
DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
PerIEC 60825-1: 2007-03; 21 CFR 1040:10(g)
MAX.AVERAGEOUTPUT POWER: 1mW
WAVELENGTHRANGE: 600-700nm
VISIBLE AND/OR LASER RADIATION
DO NOT STARE INTO THE BEAM OR VIEW
DIRECTLY WITH OPTICAL INSTRUMENTS
CLASS2MLASER PRODUCT
PerIEC 60825-1-2007-03; 21 CFR 1040: 10(g)
COMPLIESWITHFDAPERFORMANCE
STANDARDS FOR LASERPRODUCTS
EXCEPT FOR DEVIATIONS PURSUANT
TO LASER NOTICE No. 50,
DATED JUN 24, 2007
AVOID EXPOSURE-
VISIBLE AND/OR INVISIBLELASER RADIATION
ISEMITTEDFROM THIS APERTURE
PerIEC 60825-1-2007-03; 21 CFR1040:10(g)
6
7
4
2
10
5
3
9
8
1

YLR-SERIES USER GUIDE
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SAFETY INFORMATION | IPG PHOTONICS
4. Class 4 Laser Product
(Models: QCW)
5. Identification Plate(Products
Made in the United States)1
5. Identification Plate (Products
Made in Germany)2
6. Laser Radiation Hazard Label
7. PROTECTIVE
CONDUCTOR TERMINAL3
8. Electrical Hazard Label
9. CE Compliance4
10. FUSE5
Laser Radiation Emission Indicator
The laser isequipped with a laser radiation emission indicator light located on the front panel (see Figure
5: Front Panel Layout). The laser radiation emission indicator is turnedon when laser emission is present
[CFR 1040.10(f)(5)/EN 60825-1, clause 4.7].
General Safety Instructions
Warning: You must exercise caution to avoid/minimize specular reflections as these reflections
occur at the laser’s wavelength and are invisible!
Specular Reflections
1Refer to Table 3 for Model Designation Codes.
2Refer to Table 3 for Model Designation Codes.
3Thissymbolisspecifically reserved for the PROTECTIVE CONDUCTOR TERMINAL and no other. It is placed at the equipment earthing point and is mandatory
for all grounded equipment
4This label indicates compliance with CE marking requirements.
5Thissymbolis accompanied withtype and rating (e.g. T15A, 250VAC, ¼ x 1-1/4)
MADE IN GERMANY
SUPPLY: XXX-XXX/XXX-XXX VOLTS
1PHASE 50/60 Hz
RATED FULL LOAD: XXA/XA XXXX W
WD NUMBER: PXX-XXXXXX
MODEL NAME: YLR-XXX-XXXX-XX-XX-XX
SERIAL NUMBER: PLXXXXXXX
DATE OF MANUFACTURE: XXX XXXX
MANUFACTURE: IPG LASER GmbH
SIEMENSSTRASSE 7
D-57299 BURBACH, GERMANY
MADE IN THE USA
SUPPLY: XXX-XXX/XXX-XXX VOLTS
1PHASE 50/60 Hz
RATED FULL LOAD: XXA/XA XXXX W
WD NUMBER: PXX-XXXXXX
MODEL NAME: YLR-XXX-XXXX-XX-XX-XX
SERIAL NUMBER: PLXXXXXXX
DATE OF MANUFACTURE: XXX XXXX
MANUFACTURE: IPG PHOTONICS
50 OLD WEBSTER ROAD
OXFORD, MA 01540 U.S.A
MAX. CONTINOUS OUTPUT POWER: 300W
MAX. PEAK OUTPUT POWER: 2,000W
PULSE DURATION: 0.1-100ms
PULSE REPETITIONRATE: 0-5kHz
WAVELENGTHRANGE: 900-1200nm
VISIBLE AND/OR INVISIBLELASER RADIATION
AVOIDEEYEOR SKIN EXPOSURE TO
DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
PerIEC 60825-1:2007-03; 21 CFR 1040: 10(g)

YLR-SERIES USER GUIDE
IPG PHOTONICS | SAFETY INFORMATION
5
Often there can be numerous secondary laser beams produced at various angles near the laser. These
beamsare called specular reflections and are produced when the laser reflects off a smooth surface of the
primary beam. Although these secondary beams may be less powerful than the total power emitted from
the laser, the intensity may be great enough to cause damage to the eyes and skin as well as materials
surrounding the laser.
Equipment and Solvents
Light-sensitive elements in equipment, such as video cameras, photomultipliers and photodiodes may also
be damaged from exposure to the laser light.
Caution: The laser light is strong enough to cut or weld metal, burn skin, clothing and paint. In
addition, this light can ignite volatile substances such as alcohol, gasoline, ether and other
solvents.
Exposure to solvents or other flammable materials and gases must be avoided and must be
relocated away from this device.
Safety Recommendations
IPG recommends that you followthese procedures to operate the IPG laser safely:
Never lookdirectlyinto the laser output port when power is supplied to the laser.
Avoid positioning the laser and all opticalcomponents at eye level.
Provide enclosures for laser beam.
Ensure that all personal protective equipment (PPE) is suitable for the output power and
wavelength range listed on the laser safety labels that are affixed to the product.
Use the laser in a room with access controlled by door interlocks. Post warning signs. Limit access
to the area to individuals who are trained in laser safety while operating the laser.
Avoid using the laser in a darkened environment.
Do not enable the laser without a couplingfiber or equivalent attached to the opticaloutput
connector.
Always switch the laser off when working with the output such asmounting the fiber or collimator
into a fixture, etc. If necessary, align the output at low output power and then increase the output
power gradually.
Do not install or terminate fibers or collimators when laser is active.
If this instrument is used in a manner not specified in this document, the protection provided by the
instrument may be impaired and the warranty will be voided.
Optical Safety
Caution: If the output of the device is delivered through a lens with an anti-reflection coating,
make sure that the lens is of good quality and clean. For cleaning instructions, refer to the
“Optical Fiber Connector Inspection and Cleaning Guide”.
Any dust on the end of the collimator assembly can burn the lens and damage the laser.

YLR-SERIES USER GUIDE
6
SAFETY INFORMATION | IPG PHOTONICS
Hot or molten pieces of metal may be present when using this laser. Exercise caution if debris is
being generated in your application.
Electrical Safety
Warning: The input voltage to the laser is potentially lethal. All electrical cables and
connections should be treated as if it were a harmful level. All parts of the electrical cable,
connector or device housing should be considered dangerous.
1. Make sure this instrument is properly grounded through the protective conductor of the AC power
cable. Any interruption of the protective grounding conductor from the protective earth terminal can
result in personal injury.
2. Always use your device in conjunction with properly grounded power source.
3. For continued protection against fire hazard, replace the line fuses (if applicable) with only the same
types and ratings. The use of other fuses or material is prohibited.
4. Before supplying the power to the instrument, make sure that the correct voltage of the AC power
source is used. Failure to use the correct voltage could cause damage to the instrument.
5. Before switching the power on, ensure that line voltage corresponds to the specified level.
6. There are no operator serviceable parts inside. Referall servicing to qualified IPG personnel. To
prevent electrical shock, do not remove covers. Any tampering with the product will void the
warranty.
Environmental Safety
Warning: Never look directly into a live fiber or collimator and make sure that you wear
appropriate laser safety eyewear at all times while operating the product.
Proper enclosures must be used to secure a laser safe work area. This includes but is not limited to laser
safety signs, interlocks,appropriate warning devices and training/safety procedures. In addition, it is
important to install the output assembly away from eye level.
Warning: Ensure that all personal protective equipment (PPE) is suitable for the output power
and wavelength range listed on the laser safety labels that are affixed to the product.
The interaction between the laser and the material being processed can also generate high intensity UV
and visible radiation. Ensure that all laser enclosures are in place to prevent eye damage from visible
radiation.
Caution: Damage to the laser is possible, unless caution is employed in operating the device.
IPG provides the following recommendations to promote the long life of the IPG laser:
Do not expose the device to a high moisture environment (>95% humidity).
Water-cooled lasers must not operate at temperatures below the respective ambient dewpoint
(see Figure 2)