IPG YLS-K Series Operational manual

High Power Fiber Laser
Series YLS-K
Output power 1 to 3kW
Translation of the Original Operating Manual
Installation, Operation and Maintenance
Document Number: G21-550064-000
Date: 25.10.2018

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Table of contents
1 General information ............................................................................ 7
1.1 Manufacturer.......................................................................................7
1.2 EU Declaration of Conformity ......................................................7
1.3 Target groups for this operating manual................................8
1.4 Warranty ...............................................................................................8
1.5 Formal information about the operating manual................9
1.6 Presentation of safety instructions......................................... 10
1.7 Layout conventions ....................................................................... 13
1.8 Directory of abbreviations.......................................................... 14
1.9 Licensing agreements................................................................... 15
2 Safety.......................................................................................................18
2.1 Safety instructions ......................................................................... 18
2.2 Intended use ..................................................................................... 18
2.3 Non-intended use ........................................................................... 19
2.4 Obligations of the system owner ............................................. 19
2.5 Responsibility of the operating personnel .......................... 20
2.6 Personnel qualifications.............................................................. 20
2.7 Safety-conscious working........................................................... 21
2.8 Personal protective gear ............................................................. 21
2.9 Specific dangers............................................................................... 22
2.9.1 Electrical energy........................................................................22
2.9.2 Laser radiation ...........................................................................22
2.9.3 Gas and particle emission......................................................23
2.9.4 Sound level...................................................................................23
2.10 Safety equipment............................................................................ 24
2.10.1 E-Stop button ..............................................................................25
2.10.2 External safety interface ........................................................25
2.10.3 Fiber break monitoring ..........................................................26
2.11 Warning labels................................................................................. 26
2.12 Independent alteration or replacement parts procure-
ment ..................................................................................................... 27
3 Device description..............................................................................28
3.1 Functional principle ...................................................................... 28
3.2 Overview ............................................................................................ 30
3.2.1 Operating elements ..................................................................31

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3.2.2 Interfaces and connections ....................................................32
3.2.3 Fiber connector...........................................................................32
3.2.4 Main components.......................................................................34
3.2.5 Electrical mounting plate........................................................35
4 Delivery and transport ......................................................................36
4.1 Scope of delivery.............................................................................. 36
4.2 Delivery and transport.................................................................. 36
4.2.1 Unloading.......................................................................................37
4.2.2 Unpacking the product.............................................................38
4.2.3 Transport to the installation site.........................................38
4.3 Returning the product................................................................... 42
5 Assembly and installation ................................................................43
5.1 Space requirements and room conditions............................ 44
5.2 Supply connections......................................................................... 44
5.2.1 Supply voltage .............................................................................44
5.2.2 Cooling water supply................................................................45
5.3 Set up the product........................................................................... 45
5.4 Running lines and fibers............................................................... 45
5.5 Connecting the product ................................................................ 46
5.5.1 Connecting the supply voltage .............................................47
5.5.2 Connecting the external interfaces.....................................50
5.5.3 Connecting the fiber connector to the process optics
............................................................................................................51
5.5.4 Connecting the water supply ................................................52
5.6 Installing the software................................................................... 55
6 Acceptance and commissioning......................................................56
6.1 Visual inspection.............................................................................. 56
6.2 Work to be performed before commissioning.................... 56
6.3 Transfer to operation..................................................................... 57
6.4 Recommissioning ............................................................................ 57
7 Operation................................................................................................58
7.1 Operating modes.............................................................................. 58
7.2 Switching on/off .............................................................................. 59
7.3 Switching on the laser power supply...................................... 61
7.4 TEST mode ......................................................................................... 62
7.4.1 Working without the laser program ..................................63
7.4.2 Working with the laser program.........................................64
7.4.3 External control ..........................................................................64
7.4.4 Analog control .............................................................................66

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7.5 ROBOT mode .................................................................................... 67
8 LaserNet software...............................................................................70
8.1 System requirements.................................................................... 70
8.2 Installing the software.................................................................. 70
8.3 Establishing a connection to the laser................................... 74
8.4 Starting LaserNet............................................................................ 76
8.5 LaserNet user interface................................................................ 77
8.6 LaserNet menu description........................................................ 78
8.6.1 File menu ......................................................................................80
8.6.2 Configuration menu .................................................................81
8.6.3 View menu....................................................................................90
8.6.4 Extras menu.................................................................................91
8.6.5 Help menu ....................................................................................93
8.7 LaserNet status indicators.......................................................... 93
8.8 LaserNet tabs.................................................................................... 93
8.8.1 Status tab ......................................................................................93
8.8.2 Alarms tab ....................................................................................95
8.8.3 Warnings tab...............................................................................96
8.8.4 Control tab....................................................................................97
8.8.5 Events tab .....................................................................................99
8.8.6 Logfiles tab................................................................................100
8.8.7 Power supply tab....................................................................101
8.8.8 Chiller tab ..................................................................................102
8.8.9 Dew point tab...........................................................................104
8.8.10 Hardwiring tab ........................................................................105
8.8.11 Modules tab...............................................................................105
8.9 LaserNet program editor ......................................................... 106
8.9.1 LaserNet program editor editing window...................107
8.9.2 Command list for laser programs....................................108
8.9.3 Laser program editor command descriptions...........110
9 Maintenance ...................................................................................... 112
9.1 Maintenance work ...................................................................... 113
9.1.1 Clean fiber connectors .........................................................113
9.1.2 Measuring the laser output power .................................121
9.1.3 Measuring the beam quality..............................................122
9.1.4 Checking the water outlet...................................................123
9.2 Replacement and repair work ............................................... 125
9.2.1 Replacing a laser module....................................................126
9.2.2 Replacing the feeding fiber ................................................126
9.3 Maintenance of the water system (IPG chiller).............. 127
10 Messages and troubleshooting.................................................... 128

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10.1 Information about message displays....................................128
10.2 Status messages, warnings and alarms................................128
10.3 Troubleshooting.............................................................................128
10.4 Manufacturer’s service................................................................129
10.4.1 Behavior in the event of malfunctions ...........................129
10.4.2 Downloading the log files via LaserNet .........................131
10.4.3 Downloading the events file via LaserNet....................135
10.4.4 Downloading the configuration overview via LaserNet
.........................................................................................................136
10.4.5 Updating the firmware and product configuration..138
10.4.6 Resetting critical errors........................................................139
11 Decommissioning and disposal ................................................... 141
11.1 Temporary decommissioning..................................................141
11.2 Permanent decommissioning...................................................142
11.3 Disposal..............................................................................................143
12 Appendix..............................................................................................144
12.1 Status messages, warnings and alarms................................144
12.1.1 Messages of the Status tab...................................................145
12.1.2 Messages of the Alarms tab.................................................148
12.1.3 Messages of the Warnings tab ...........................................157
12.1.4 Messages of the Control tab................................................161
12.2 Technical data.................................................................................162
12.2.1 Scale drawings..........................................................................162
12.2.2 Rating plate of the laser........................................................164
12.2.3 Dew point temperatures......................................................164
12.3 EU Declaration of Conformity ..................................................166

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1 General information
This operating manual enables safe and efficient operation of the prod-
uct “high power fiber laser” (hereafter referred to as the product).
This operating manual is an integral part of the product and contains all
important information about the assembly, start-up, operation and
maintenance of the product.
The operating and maintenance personnel must have carefully read and
understood this operating manual before beginning any work.
The safety instructions in this operating manual must be followed. Fail-
ure to follow the safety instructions can lead to personal injuries, dam-
age to the device or environmental damage.
ðThis operating manual must be kept in the product’s immediate
vicinity and accessible to the operating personnel at all times.
1.1 Manufacturer
Registered office
in Germany
IPG Laser GmbH
Carl-Benz-Straße 28
57299 Burbach
Tele-
phone:
[phone]
Fax: [phone]
Internet: www.ipgphotonics.com
Sales Tele-
phone:
[phone]
Email: [email protected]
Customer service Tele-
phone:
[phone]
Email: [email protected]
1.2 EU Declaration of Conformity
The Declaration of Conformity of the product can be found in the ap-
pendix to this operating manual.
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 | General information
8YLS-K
1.3 Target groups for this operating manual
The translation of the original operating manual for the product was
created by IPG Laser GmbH for the operating and maintenance person-
nel of the system owner.
The operating personnel must have corresponding vocational training
and be trained in the operation of the product (see Personnel qualifica-
tions [}20]).
The maintenance personnel are responsible for the assembly/installa-
tion, maintenance and repair. The personnel must have been trained in
maintenance of the product by IPG Laser GmbH or another competent
IPG branch office. Successful participation in the training is confirmed
with a certificate (see Personnel qualifications [}20]).
1.4 Warranty
IPG Laser GmbH offers a warranty for all of its products with regard to
material and manufacturing defects for the period specified in the appli-
cable purchase contract or in the specifications. The warranty period
begins on the date of delivery agreed upon in the purchase contract.
In addition, IPG Laser GmbH guarantees that this product satisfies all
applicable specifications in normal operation.
During the warranty period, IPG Laser GmbH may choose to repair or
replace a product that is found to be defective in the opinion of IPG
Laser GmbH with regard to material and manufacturing defects.
Warranty period The warranty period for all products repaired or replaced during the
warranty period is limited to the remaining period of the original war-
ranty period and is only offered for the individual defective product.
IPG Laser GmbH reserves the right to issue a credit for all defective
products that have proven to be faulty during normal operation.
ðContact qualified IPG personnel for all maintenance work. All in-
quiries in connection with repairs or replacements within the
framework of this warranty must be made immediately after the
defect was discovered; such inquiries must be made directly to
IPG Laser GmbH or its local representative.
Driver software Current and future software is subject to the non-exclusive licensing
conditions of IPG Laser GmbH. Using the software automatically consti-
tutes acceptance of the licensing conditions.
Service and re-
pairs
When sending back components / products, observe the following in-
structions:

9YLS-K
• Never send the product back to IPG Laser GmbH without enclos-
ing a valid RMA number (Return Material Authorization). The
RMA number can be obtained from the Service department of IPG
Laser GmbH.
• The costs for repair of the product will be invoiced to the cus-
tomer if the product or repair is not covered under the warranty.
• Articles that are sent back to IPG Laser GmbH upon request must
be shipped in a suitable container / packaging.
Protection class Voiding of the warranty
The specified IP protection classes apply only for the
closed cabinet and with use of the connections and
couplings provided.
ðAlways keep the cabinet closed during opera-
tion.
ðDo not make any mechanical alterations to the
connections.
The IP protection classes specified in the specifications apply to the
electrical and electronic components of the product. Mechanical
changes can lead to a lower protection class, thereby voiding the war-
ranty.
Reservation of
the right to make
amendments
IPG Laser GmbH reserves the right to make changes to the design or
construction of its products at any time without any obligation to imple-
ment or install these changes in units purchased at an earlier point in
time.
1.5 Formal information about the operating
manual
IPG Laser GmbH grants no usage rights, either directly or indirectly, un-
der a patent or other industrial property rights or copyright on the ba-
sis of the use of information provided in this document.
Copyright 2018 IPG Laser GmbH. All rights reserved. It is prohibited to
reproduce this publication, share it with third parties, store it in re-
trieval systems or adapt it in any way whatsoever without the express
written authorization of IPG Laser GmbH.
IPG Laser GmbH believes that the information provided is correct and
reliable. IPG Laser GmbH provides no warranty of any kind, except with
regard to the information in this document, including the assurance of
suitability for general or specific use. Furthermore, IPG Laser GmbH ac-
 | General information

 | General information
10 YLS-K
cepts no responsibility for the use of information in this document, for
patent violations or rights of third parties that result from the use of
this information.
Trademarks Designations that serve as trademarks retain their legal status with or
without labeling as trademarks.
Service In the event of errors that cannot be rectified using this operating man-
ual, please contact the competent IPG service department.
Accompanying
documents
In addition to this operating manual, the complete documentation in-
cludes the following:
• Commissioning report
• Circuit diagram
• Layout of the installation panel
• Accessories list
• Technical data
• Declaration of Conformity
Additional system documents in accordance with contractual agree-
ments.
1.6 Presentation of safety instructions
Warnings • protect against possible injuries and property damage.
• indicate the magnitude of the danger by means of the signal
word.
• indicate the risk of personal injury with the danger symbol.
• describe the type and source of the danger.
• state the risk and possible consequences.
• present measures for avoiding dangers and prohibit specific ac-
tions.
General warning WARNING
Type and source of the danger
Causes and possible consequences if not heeded
ðMeasures to prevent the danger / prohibitions
Result of the measure (optional)

11YLS-K
Safety symbols
Safety symbols are displayed in the left column of the warning:
• The safety label designates warnings that warn against personal
injury.
• The prohibition sign indicates an action that may not be per-
formed.
• The mandatory sign indicates a required action that must be
performed to prevent danger.
Signal word
The selected signal word indicates the magnitude of a potential danger
and the probability of its occurrence.
Source of the danger
The type and cause of the danger are specified here.
Possible consequences of failure to heed the warning
The possible consequences of failure to heed the warning are, for exam-
ple, crushing injuries, burns or other severe injuries. Additional expla-
nations can also be given here.
Measures / prohibitions
Actions that must be taken to avoid a danger or that are prohibited in
order to avoid a danger are listed under measures / prohibitions.
The result information is provided if the danger no longer exists after
the warning or prohibitions are heeded or the danger potential has
changed.
Signal words DANGER
This signal word indicates an immediate danger. If
this danger is not avoided, this will lead to death or
severe injuries.
WARNING
This signal word indicates a possible danger. If this
danger is not avoided, this could lead to death or se-
vere injuries.
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12 YLS-K
CAUTION
This signal word indicates a possible dangerous situ-
ation. If this dangerous situation is not avoided, this
could lead to light or moderate injuries.
NOTICE
If this notice is not heeded, there is a risk of damage
to the product or other property damage.
Additional in-
structions
Important notice: Should be heeded for safe and er-
ror-free work.
Additional information about the device or the
method of operation or general information.

13YLS-K
1.7 Layout conventions
Various symbols and numbering styles are used in this operating man-
ual in order to designate work instructions, lists, status descriptions,
etc. The most important layout conventions are listed below.
Content Depiction in the text
Work instructions in a specific order 1. Action 1
2. Action 2
Individual instruction, work instruc-
tion without specific order and de-
scription of result
ðAction
Condition/result after perfor-
mance of the action or addi-
tional explanation
List without specific order • List item
List with specific order 1) List item 1
2) List item 2
Signal names, system messages Message text
Buttons or keyboard Button
Menu Title / Tab Menu Title
Menu path \Menu-1\Menu-2\Command
Operating modes ROBOT
Table1: Layout conventions
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14 YLS-K
1.8 Directory of abbreviations
Abbreviation Meaning
CW laser Continuous wave laser
°dH German hardness (unit of water hardness)
Δpmax Maximum pressure difference
FBUS Field bus
FFBD Fast fiber break detection
IP address Internet protocol address)
IP protection
class
International protection marking
L1, L2, L3 Phase conductor
LAN Local area network
LC Laser chiller
LCA Laser connector automotive
LED Light-emitting diode
LCU Laser module control unit
FOC Fiber-optic cable
PE Protection earth
QCW laser Quasi-continuous wave laser
RMA Return material authorization
TCP/IP Transmission control protocol / Internet protocol
VAC Volts alternating current
VDC Volts direct current
VDE Association for Electrical, Electronic & Information Tech-
nologies (Verband deutscher Elektrotechniker)
YLS Ytterbium laser system
Table2: List of abbreviations

15YLS-K
1.9 Licensing agreements
Software licensing agreements for LaserNet
IPG Laser GmbH®
Single user license
SOFTWARE LICENSING AGREEMENT
Read the conditions of this software licensing agreement carefully
before using the software. IPG Photonics and/or its subsidiary IPG
Laser GmbH (hereafter "IPG") grants you as the end user a usage li-
cense only under the condition that you accept all conditions of
this licensing agreement.
A legal contract enforceable by law is hereby established between you
and IPG Photonics. Through a written declaration of acceptance, you ac-
cept the conditions of this agreement.
License The software licensed by this agreement (collectively "Software") is the
property of IPG and is protected by copyright. Once you have accepted
this licensing agreement, you receive certain usage rights for the soft-
ware. This license regulates all versions, revisions or improvements to
the software that IPG may make available to you. Except as modified by
an IPG license document, a license certificate or a license key that pre-
cedes, follows or is enclosed with this license, your rights and obliga-
tions with respect to the use of this software are as follows:
You may: • Use the software on a single computer (Windows operating sys-
tem).
• Create one copy of the software for archiving purposes or copy
the software to the hard drive of your computer and keep the
original for archiving purposes.
You may not: • Issue a sublicense for any portion of the software, lease or lend
out the software; furthermore, you may not disassemble, decom-
pile, take apart, modify or translate the software or attempt to
decrypt the source code of the software or create works derived
from the software.
• Use previous versions of the software after you have received a
replacement set of CDs or an updated version. After updating of
the software, all copies of the previous versions must be de-
stroyed.
• Use a later version of the software than is granted to you via this
licensing agreement, unless you have purchased permission to
update or otherwise acquired in a separate form the right to use
such a later version.
• Use IPG software on data carriers for which you have no permis-
sion within the scope of a license module.
• Use the software in a way that is not permitted by this license.
 | General information

 | General information
16 YLS-K
Use of the soft-
ware and updat-
ing
IPG provides the software only in connection with a fiber laser of the
company IPG.
Specific IPG software products contain content that is updated from
time to time. You can receive updates to the content for the period for
which you have subscribed to updates to the content (including each
subscription that is included upon purchase of the software), purchased
update rights for the software or concluded a maintenance agreement
that includes updates to the content or for which you have otherwise
purchased the right to receive updates to the content. This license does
not entitle you to receive or use updates to the content in any other
form.
Warranty IPG offers no warranty that the data carrier on which the software is
sold is free of errors. Your sole remedy in the event of a violation of this
warranty is that IPG, at its own discretion, will replace faulty data carri-
ers that are returned to IPG within the warranty period. IPG offers no
warranty that the software will meet your requirements or that the op-
eration of the software will be without disruptions or that the software
is free of errors.
The above warranty applies exclusively and in the place of all other
warranties, regardless of whether express or implicit, including the im-
plicit warranty with regard to the general suitability for use, suitability
for a specific purpose and in regard to the non-violation of rights to in-
tellectual property.
Exclusion of lia-
bility in the event
of damages
IPG accepts no complaint or claim of damage originating from the use of
the software.
IPG is, as permitted in maximum form by the applicable laws and inde-
pendent of whether a remedy depicted in this document fails in its pri-
mary purpose, not liable to you in any case for special consequential, di-
rect or similar damages, including lost profit or loss of data, even if IPG
was informed of the possibility of such damage.
In no case shall the liability of IPG or its licensors exceed the purchase
value of the software.
Limited rights All products and documentation of IPG are commercial in nature. The
software and software documentation are "commercial articles".
Export The export or re-export of this software is regulated in each case by the
locally applicable laws and regulations. The export or re-export of the
software to an entity on the list of prohibited trade partners and other
blacklists published by the various public authorities is strictly prohib-
ited.
General informa-
tion
This agreement and every license module associated with it represents
the entire agreement between you and IPG with regard to the software
and replaces all previous or simultaneously established oral or written
agreements, proposals and representations in regard to this issue; it

17YLS-K
takes priority over all contradictory and supplemental conditions of ev-
ery offer, every order, every confirmation or similar agreement be-
tween the parties.
This agreement shall be terminated by a violation of the conditions con-
tained herein; in this case, you must cease use of the software and de-
stroy all copies of the software. The exclusion of liability in regard to
warranties and damages as well as the restrictions of liability remains
in effect even after termination of the agreement. This agreement can
only be modified by a license module that is enclosed with this license
and/or by a written document that has been signed by you and IPG. If
you have questions concerning this agreement or would otherwise like
to contact us, please write to IPG.
 | General information

 | Safety
18 YLS-K
2 Safety
The product was designed, manufactured and tested for safety accord-
ing to the currently applicable safety rules and laws and current engi-
neering practices. The product is in a technically fault-free condition.
However, the product can pose dangers when it is
• operated by personnel without proper training.
• used improperly or contrary to the intended use.
• not in a fault-free condition from a safety perspective.
2.1 Safety instructions
Normal operation Operation of the product is only permitted if all safety equipment is in
operation.
Secure access to the work zones using isolating protection equipment
with safety interlock function (laser cell) such that the area outside the
work zones satisfies the requirements of laser class 1.
The product housing must always be closed and locked during opera-
tion. Issue the housing key only to authorized personnel for mainte-
nance and repair work.
Maintenance Maintenance work may only be performed by trained experts.
Never operate the product with faulty or non-operational electrical con-
nections.
Comply with the inspection and maintenance intervals specified by the
manufacturers for electrical and mechanical components.
Always perform cleaning and maintenance work on the product while it
is shut down. Always follow the procedure for decommissioning of the
product described in this operating manual. Immediately following
completion of the work, all safety features and protection equipment
must be reattached or put into operation.
Only permit authorized and appropriately trained personnel who have
received safety training to access the product. Always close the product
housing after maintenance work.
In the event of faults in the energy supply, switch off the product imme-
diately.
2.2 Intended use
The product is intended exclusively for material processing, in particu-
lar for cutting and welding applications on metals and metal alloys.

19YLS-K
2.3 Non-intended use
The operational safety of the supplied product is only guaranteed if the
intended use is complied with. The limit values listed in the technical
data must be complied with.
The use of optics (e.g. fiber coupler, process fiber, process optics) that
are not authorized by IPG Laser GmbH is not covered by the warranty.
2.4 Obligations of the system owner
The system owner must ensure that the safety and health of the operat-
ing personnel are always protected during use of the product.
The system owner must ensure that
• the product is used only as intended (see Intended use [}18]).
• the product is used only in a flawless, properly functional condi-
tion.
• all safety and warning signs are affixed to the product and read-
able.
• appropriate fire protection is present at the setup location.
• the safety equipment is always freely accessible and is regularly
inspected.
• the responsibilities of the assigned personnel are defined and
complied with.
• only properly trained or educated personnel operate, maintain or
repair the product.
• the operating personnel has completely read and understood the
operating manual and knows all the safety instructions and resid-
ual dangers described in the operating manual.
• first aid is made possible for the operating personnel (e.g.
through first aid training and appropriate first aid equipment).
• the personal protective gear is available to the operating and
maintenance personnel and used in accordance with the applica-
ble regulations.
• the operating personnel are not under the influence of drugs, al-
cohol or medications that reduce reaction speed.
• the safety- and risk-conscious work of the personnel is regularly
inspected.
• any specified maintenance and inspection work is performed on
time.
• electrical work is only performed by qualified electricians.
 | Safety

 | Safety
20 YLS-K
• in addition to the instructions in this operating manual, the rules
and regulations for accident prevention as well as the environ-
mental and occupational safety regulations of public authorities
and industry associations applicable at the usage site are com-
plied with.
• the operating manual is available for consultation at the installa-
tion location of the product at all times and is in a readable condi-
tion.
2.5 Responsibility of the operating personnel
Every operator of the product
• must be trained in and follow the fundamental rules with regard
to safety-conscious work, accident prevention and the operation
of the product.
• must know the currently applicable statutory provisions on laser
safety.
2.6 Personnel qualifications
The areas of responsibility, competency and supervision of the person-
nel must be precisely regulated by the system owner.
The personnel assigned to assemble, maintain, operate and inspect the
product must have the corresponding qualifications for performing this
work. Any lack of knowledge on the part of the personnel must be cor-
rected through training and instruction.
Operating per-
sonnel
The operating personnel was trained and instructed in the operation of
the product.
If the product is operated in conjunction with an industrial robot, corre-
sponding training is necessary for the operation of the robot (generally
by the manufacturer of the robot).
The operating personnel may only:
• Operate the product.
• Carry out cleaning work (except for cleaning of the fiber connec-
tor).
Maintenance per-
sonnel
The maintenance personnel consists of experts who have the corre-
sponding qualifications for performing the work listed below.
The maintenance personnel must have been trained in maintenance of
the product by IPG Laser GmbH or another competent IPG branch office,
unless this work is performed by employees of IPG Laser GmbH.
After corresponding training by IPG, the maintenance personnel may
perform the following work: