Fiber Laser Machine YLR Series

Part Number: P21-010106, YLR-Series SLED 3.0

Disclaimer Notice

© IPG Photonics Corporation 2015. 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 which were contained on the original version.

This User Guide is provided “as is” and 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 any implied warranties of merchantability or fitness for a particular use, purpose or application, either alone or in combination with any other device, equipment, apparatus,  materials or process. Users must take full responsibility for their application of any products.

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 in or omissions from this document or for any incidental, consequential, indirect or special damages, including without limitation, lost profits, lost production costs or similar 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.

US Export Control Compliance (for US products only)

IPG is committed to complying with U.S. and foreign export, import and customs requirements. Export and re-export of  lasers and other products  manufactured by IPG are subject to U.S. and foreign laws and regulations, including 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.

You are ultimately responsible for exporting any IPG product in accordance with the Export Administration Regulations and the U.S. Customs and Border Protection Regulations.

 IPG recommends that you obtain your own legal advice when attempting to export. All export and custom classifications and information provided by IPG is subject to change without notice. IPG makes no representation as to the accuracy or reliability of the classification information provided. The stated classification only applies to equipment as it left the IPG factory. Any modifications or changes after leaving the IPG facility will be your responsibility to obtain further classifications. IPG is in no way responsible for any damages whether direct, consequential, incidental, or otherwise, suffered by you as a result of  using or relying upon such classifications, groups, or symbols for any purpose whatsoever.

Information relating to U.S. export rules and regulations can be found at the U.S. Bureau of Industry and Security Website. 

Information related to U.S. Customs and Border Protection can be found at the U.S. Customs Website.

IPG, IPG Photonics and the IPG Logo are registeredtrademarks of IPG Photonics Corporation. IPG has identified words that are considered trademarks. 

Neither the presence nor absence of trademark identifications affects the legal status of any trademarks.

Patent Rights

This product is patented. See the product for more information. 

Preface

Ensure you read and understand this guide in its entirety and familiarize yourself with the operating and maintenance instructions before you use the product. 

IPG stronglyrecommends that all operators of the product read and pay particular attention to allsafety information contained herein prior to operating the product.

This guide should stay with the product to provide you and all future operators, users, and owners of the product with important operating, safety, and other information.

For technical assistance concerning the product, contact IPG Customer Service.

Audience

The audience for this guide are system integrators and technicians responsible for installing and operating the YLR-Series laser in industrial and non-industrial installations.

Contents

Preface

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i-i

1 Overview of the YLR-Series Fiber Lasers

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Safety Information and Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Safety Features and Compliance to Government Requirements . . 1-3

Compliance to Regulatory Standards (on applicable units) . . . . . . 1-3

Class A Digital Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Electromagnetic Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Laser Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Safety Label Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Emission-On Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

General Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Specular Reflections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Equipment and Solvents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Safety Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Optical Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Electrical Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Environmental Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Additional Safety Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

2 Using Your Device

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Main Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Model Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Laser Model Designation Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

YLR Series  Front Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

YLR Series  Rear Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Optical Output Fiber Terminations . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Products with a Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Products with a Collimator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Model Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Unpacking Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Unpacking a Unit from a Cardboard Box . . . . . . . . . . . . . . . . . . . 2-11

Unpacking a Unit from a Wooden Crates . . . . . . . . . . . . . . . . . . . 2-14

Using the YLR-Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Connecting Electrical Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Interface Wire Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Connections to External Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Interlock Safety Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18 

Interface Connector Pin Assignments . . . . . . . . . . . . . . . . . . 2-19

Initial Power-Up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Key Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

YLR-Series System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

Rear Panel: 7-pin and 24-pin Connectors . . . . . . . . . . . . . . . . . . . 2-26

Operation Control Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

Turning on the Device in Local Control Mode . . . . . . . . . . . . . . . . 2-30

Turning on the Device in Remote Control Mode . . . . . . . . . . . . . . 2-30

Selecting Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31 

Pulse Mode (QCW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31 

Operational Sub-Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32 

Standalone Mode (Modulation and Gate control disabled) . . 2-32 

Modulation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32 

Gate Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32 

External (Analog) Power Control . . . . . . . . . . . . . . . . . . . . . . 2-32 

Pulse Shaper Program (Optional Feature) . . . . . . . . . . . . . . . 2-33

Using the Touch-Screen Display . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

3 Computer Interface/Commands

RS-232 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Ethernet TCP/IP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

4 Pulse Shaping

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

PC Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Ethernet TCP/IP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

RS-232 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Installing the Pulse Shaper Software . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Configuring a Local Area Connection for Ethernet . . . . . . . . . . . . . 4-9

Pulse Shaper Configuration Procedures . . . . . . . . . . . . . . . . . . . . 4-12

Connecting using Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Connecting Using RS-232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Using the Offline Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Exporting a Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Importing a Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Using the Pulse Shaper Program . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Laser Control Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Shape Editor Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Creating a New Pulse Shape Profile . . . . . . . . . . . . . . . . . . . . . . . 4-27

Creating a Single Pulse Shape . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28

Shifting a Pulse Shape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29

Pulse Shape Storage and Recall . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

On a Laser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

On a Host PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31

Deleting a Pulse Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31

Single Pulse Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33

Single Pulse Activation using the Touch-Display Screen . . . . . . . 4-34

Scaling Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35

Creating a New Pulse Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36

Sequence Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37

Creating a New Pulse Sequence . . . . . . . . . . . . . . . . . . . . . . . . . 4-38

Building a Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

Modifying a Pulse Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42

Pulse Sequence Storage and Recall . . . . . . . . . . . . . . . . . . . . . . 4-42

On a Laser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42

On a Host PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43

Deleting a Pulse Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43

Pulse Sequence Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45

Pulse Sequence Activation using the Touch-Screen Display . . . . 4-46

Remote Control Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47

5 Troubleshooting

Error Messages on the Display and Status Bits . . . . . . . . . . . . . . . . 5-1

A Web User Utility

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Configuration Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Configuring an Ethernet Connection . . . . . . . . . . . . . . . . . . . . . . . . A-1

Configuring an RS-232 Serial Connection . . . . . . . . . . . . . . . . . . . A-1

Configuring a LAN Connection for Ethernet . . . . . . . . . . . . . . . . . . . A-2

Website Data Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

Accessing the Web User Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

B Service

Service and Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Serviceable Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Replacing Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Replacing the Filter Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

C Optical Fiber Connector Inspection and Cleaning

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

D Warranty

Limited Express Product Warranties . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Warranty Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Limitation of Remedies and Liabilities . . . . . . . . . . . . . . . . . . . . . . . D-2

Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Firmware License Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Software License Agreement for LaserNet™ . . . . . . . . . . . . . . . . . . D-6

IPG Laser GmbH® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-6

Single Use License . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-6

MICROSOFT CORPORATION EMBEDDED SOFTWARE

END USER LICENSE AGREEMENT . . . . . . . . . . . . . . . . . . . . . . . . . D-10

E Product Returns

Returns to the United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1

Shipping Instructions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

Warranty Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

Non-Warranty Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

Returns to Germany . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3

F Glossary

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1

1 Overview of the YLR-Series Fiber Lasers

Introduction

The IPG Photonics YLR-Series fiber lasers are developed to meet industrial market demands of efficient reliable maintenance-free high power lasers. 

These lasers are a diode-pumped Ytterbium fiber laser with output powers ranging from 1W to 1.5 kW operating at the wavelength region of 1060-1100 nm.

The YLR-Series fiber lasers can be air or water-cooled. The wall plug efficiency for a fiber laser is typically exceeds 30 percent. 

All YLR-Series fiber lasers are Class 4 laser products and are designed and tested with important safety features. 

Follow this guide and apply laser safety practices for 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 other people near the laser must be aware of these special hazards.

Audience

The audience for this guide are system integrators and technicians responsible for installing and operating the IPG YLR-Series fiber lasers in industrial and non- industrial installations.

Safety Information and Conventions

To ensure the safe operation and optimal performance of the product, follow all warnings in this guide. Safety precautions must be observed during all phases of operation, maintenance, and service.

Operators must adhere to these recommendations and to apply sound laser safetypractices at all times. Never open the chassis. 

There are no user serviceable parts,equipment or assemblies associated with this product. All internal service andmaintenance should only be performed by qualified IPG personnel.

Safety Features and Compliance toGovernment Requirements

Compliance to Regulatory Standards (on applicableunits)

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 61000-4-8:2010

EN 61000-4-11:2004

EMC Other:

This Class A digital apparatus complies with Canadian ICES-003.

Electrical Safety:

61010-1:2010

Laser Safety:

EN 60825-1:2007

CDRH 21 CFR 1040.10

Functional Safety:

The following safety functions are implemented to fulfill the requirements of EN ISO 13849-1:2008 + A1:2009 Cat.3 / PL d and Category 3 (Cat. 3). 

The safety functions are implemented exclusively in hardware:

  • Stop initiated by a safeguard:The safety electronics of the laser monitors the feed fiber cable (optical fiber interlock). If the laser is emitting and the feed fiber is disconnected from a mating device or broken, the safety-related outputs become de-energized.
  • Stop initiated by a safeguard:The safety electronics of the laser monitors E-Stop input. If the laser is emitting and the E-Stop is activated, the safety-related outputs become de-energized.
  • Safe start/restart button:The safety electronics of the laser monitors safety-related outputs. A fault in the safety-related outputs is detected before the next demand upon the safety-related output.
  • Dischargeof stored energy:The safety electronics of the laser monitors safety-related inputs. If the laser is emitting and a stop is initiated by a safeguard, the stored energy for the laser is discharged.
  • Prevention of unexpected startup:The safety electronics of the laser monitors safety-related inputs. Start of restart cannot occur after activation of a safeguard until safeguard is re-established and separate deliberate action occurs.

 

Class A Digital Device

This equipment is tested and complies with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. 

These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this guide, can cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the users are required to correct the interference at their own expense.

Electromagnetic Compatibility

Compliance of the YLR-Series lasers with the EMC requirements is certified by theCE mark if identified by the CE label (Figure 1-1 on page 1-7).

 

According to the European Community standards, this device is classified as Class 4 based on EN 60825-1, 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 intensity can cause damage to the eye or skin. Despite the radiation being invisible, the beam can cause irreversible damage to the retina and cornea.Appropriate and approved laser safety eyewear must be worn at all times while the laser is operational.

WARNING: You must use appropriate laser safety eyewear when operating the 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 emits light over a range of wavelengths.

You must ensure that the laser safety eyewear used protects against light emitted by the device over its entire range of wavelengths. 

Review the safety labeling on the product (see Figure 1-1 on page 17) and verify that the personal protective equipment 

(for example, enclosures, viewing windows or viewports, garments, and eyewear) being used is adequate for the output power and wavelength ranges listed on the product.

Suppliers include LaserVision USA, Kentek Corporation and Rockwell LaserIndustries offer this laser safety material and equipment. 

There are other laserpersonal protective equipment providers. IPG provides the names of theseproviders solely as a convenience and does not endorse or recommend any of them, or their products or services. 

Furthermore, IPG assumes no liability forany of their recommendations, products, or services.

Whether the laser is used in a new installation or to retrofit an existing device, 

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.
WARNING: Use of controls or adjustments, or performance of procedures other than those specified herein, can result in hazardous radiation exposure.
CAUTION: Use of the device in a manner other than that described herein can impair the protection provided by the device.
Safety Label Locations

The YLR Series Laser has the required laser safety labels located on the outside of the chassis in various locations. 

These include warning labels indicating removable or displaceable of the protective housings, apertures through which laser radiation is emitted and labels of certification and identification.

Figure 1-1 shows the required laser safety labels and the locations for the Water-Cooled YLR-Series laser. 

Figure 1-2 on page 1-7 shows the required laser safetylabels and the locations for the Air-Cooled YLR-Series laser.

These include warning labels indicating removable or displaceable protective housings, apertures through which laser radiation is emitted and labels of certification and identification.

  1. Refer to Table 2-1 on page 2-2 for Model Designation Codes.
  2. Refer to Table 2-1 on page 2-2 for Model Designation Codes.
  3. This symbol is specifically reserved for the PROTECTIVE CONDUCTOR TERMINAL and no other. It is placed at the equipment earthing point and is mandatory for all grounded equipment.
  4. This label indicates compliance with CE marking requirements.
  5. This symbol is accompanied with type and rating (for example, T15A, 250VAC, ¼ x 1-1/4).

 

Emission-On Indicator

The laser is equipped with a an Emission-On Indicator light located on the front panel(see Figure 2-1 on page 2-3). The Emission-On Indicator is turned on when laser emission is ready to emit.

If the laser aperture or a remote laser control is located more than two meters fromthe indicator on the front panel, then an additional indicator must be located at theaperture or remote control.

Emission ON, Pin 24 on the remote connector is active high when the laser is readyto emit. It can used to provide a laser-ready warning at the aperture or  remote control when these are located two or more meters from the front panel.

General Safety Instructions

WARNING: You must exercise caution to avoid and minimize specular reflections as these reflections occur at the laser's wavelength and are invisible.
Specular Reflections

Often there can be numerous secondary laser beams produced at various angles nearthe laser aperture. 

These beams are called “Specular Reflections” and are produced when the laser light reflects off a surface where the primary beam is incident.

Although these secondary beams might be less powerful than the total power emitted from the laser, the intensity might 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 can also be damaged from exposure to the laser light.

WARNING: 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 follow these procedures to operate the IPG laser safely:

  • Never look directly into the laser output port when power is supplied to the laser.
  • Avoid positioning the laser and all optical components 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.
  • Usethe 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.
  • Avoi dusing the laser in a darkened environment.
  • Donot enable the laser without a coupling fiber or equivalent attached to the optical output connector.
  • Alwaysswitch the laser off when working with the output such as mounting the fiber or collimator into a fixture. 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 amanner 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, ensure that the lens is of good quality and clean. For cleaning instructions, refer to “Optical Fiber Connector Inspection and Cleaning” on page C-1.
Any dust on the end of the collimator assembly can burn the lens and damage the laser.
Hot or molten pieces of metal can 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.
To ensure electrical safety:
1. Make sure the device 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, ensure that the correct voltage of the AC power source is used. Failure to use the correct voltage can 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. Refer all servicing to qualified IPG personnel. To prevent electrical shock, do not remove covers. Any tampering with the product voids the warranty.
Environmental Safety

WARNING: Never look directly into a laser aperture (such as fiber, collimator, or scanning head) when the Start button or remote Start circuit is activated. Ensure 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 isnot 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 to prevent eye and skin exposure to visible and invisible collateral radiation.

CAUTION: Damage to the laser is possible, unless caution is employed inoperating 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).

CAUTION: Water-cooled lasers must not operate at temperatures below the respective ambient dewpoint (see Table 1-3 on page 1-17).

  • The device might have fans for active cooling. Ensure there is sufficient airflow tocool the device. Any objects or debris that cover the ventilation holes must be inspected.  Filter media should be inspected at regular intervals to maintain sufficient airflow into the device.
  • Operation at higher temperatures accelerate aging, increase threshold current, and lower slope efficiency. If the device is overheated, do not use it and call IPG for assistance.
  • Ensure that the work area is properly vented. gases, sparks and debris that can be generated from interaction between the laser and the work surface can pose additional safety hazards.
  • Inspect the filter media weekly and clean or replace as needed. See “Replacingthe Filter Media” on page B-2 for details.

1 These values are calculated using the August-Roche-Magnus approximation.

Additional Safety Resources

For additional information regarding Laser Safety, refer to the following list:

 Laser Institute of America (LIA)13501 Ingenuity Drive, Suite 128Orlando, Florida 32826

 Phone: 407.380.1553, Fax: 407.380.5588Toll Free: 1.800.34.LASER

American National Standards InstituteANSI Z136.1, American National Standard for the Safe Use of Lasers (Available through LIA)

International Electro-technical Commission IEC 60825-1, Edition 2 Safety of laser products –

Part 1: Equipment classification, requirements and user’s guide.(Available through LIA)

Center for Devices and Radiological Health

21 CFR 1040.10 – Performance Standards for Light-Emitting ProductsUS Department of Labor – OSHA

Publication 8-1.7 – Guidelines for Laser Safety and Hazard Assessment

US Department of Labor – OSHA

Publication 8-1.7 – Guidelines for Laser Safety and Hazard Assessment

Laser Safety Equipment Laurin Publishing

Laser safety equipment and Buyer’s Guides

IPG Photonics recommends that the user of this product investigate any or country requirements as  well as facility or building requirements that to installing or using a laser or laser device.

Ensure that the standard you are using such as ANSI, IEC, and OSHA are current.

Using Your Device

Overview

The IPG Photonics YLR-Series fiber lasers are developed for use in industrial applications. 

The lasers are compact and efficient letting you replace bulky and less efficient lasers. Main application are welding, cutting, and brazing.

Main Features
  • High quality fiber output
  • High power
  • Reliable, long lifetime
  • Compact, rugged package
  • Efficient
  • External computer interface

 

Applications
  • Industrial applications
  • Scientific research

 

Model Configurations

IPG offers manyYLR-Series configuration models.This guide is designed to provide complete instructions for all models.

Therefore, specific difference in models is noted where applicable.

Laser Model Designation Codes

Figure 2-1 on page 2-2 shows the model designation methodology for all YLR-Series lasers. 

In addition, models are also categorized according to chassis type with their respective “U” or Rack Unit code.

The subsequent AC or WC code designates whether the model is air cooled or water cooled.

The U categories offered are 3U-AC, 3U-WC, 4U-AC, 4U-WC, and 6U-AC.

Certification

IPG Photonics certifies that your system is thoroughly tested and inspected and meets published specifications prior to shipping. 

Upon receiving your device, check thepackaging and parts for any possible damage that might have occurred in transit. 

If there is damage, contact IPG Photonics immediately. It is the responsibility of the purchaser/end-user to bring the end system into compliance with all applicable regulations.

YLR Series — Front Panel View

The YRL Series front panel includes two options: panel with a display and panel without a display.

Figure 2-2 shows the front panel of the YLR-Series, which includes an option witha display. Table 2-3 lists details for each component.

Optical Output Fiber Terminations

Products with a Connector

The end connector of the fiber (as shown in Figure 2-7) uses a protective cap that covers and protects the optical surface and electrical contacts when not in use.

These protective caps must be removed from the connectors when connecting the process fiber cable of the laser to an appropriate optical interface.

You should remove the protective caps from the connectors immediately before optical cleaning and mounting in an adapter.

Products with a Collimator

Collimators have a protective window that can be replaced if damaged (as shown inFigure 2-8). 

You must remove the collimator end cap prior to use. This cap can be reused when storing the system. 

Cleaning of the protective window should be performed as needed using the same materials and techniques described in “Optical Fiber Connector Inspection and Cleaning” on page C-1.

Model Specifications

Because theYLR-Series product line is extensive, all specifications for your specificmodel are listed in the supplemental document titled SPECIFICATION YTTERBIUMFIBER LASER included with the product. 

These specifications include:

  • Optical
  • Electrical
  • Environmental
  • External Layout and Dimensions
Unpacking Instructions
If the packaging shows any signs of external damage, check unit for damages and notify the shipping agent immediately.
Particular care must be taken when you remove the unit from the packing case to ensure that the fiber optic cable is not broken or damaged.A comprehensive packing list is included with the system documentation.
Upon receipt of the laser, check all items against this list and contact IPG immediately if any of the items are missing or if any damage to the unit is evident. If any damage to the unit is evident or suspected, do not attempt to install or operate the laser in any case.

CAUTION: Lift and carry the device by supporting the device from the base.

Use the handles (if available for your device) to help position the product while it is properly supported. 

Do not use the handles for lifting or carrying the device.Do not lift or position the device by any attached fibers or cables.

Laser models that are smaller and relatively lighter are packaged in foam insulatedcardboard boxes. 

See “Unpacking a Unit from a Cardboard Box” on page 2-11.

Laser models that are larger and relatively heavy are packaged in foam insulatedwooden crates. See “Unpacking a Unit from a Wooden Crates” on page 2-14.

To minimize the risk of damage to your system, IPG Photonics recommends that you unpack your laser using the following procedures.

Unpacking a Unit from a Cardboard Box

See Figure 2-9 on page 2-13 for an illustration of this procedure.

To unpack your unit from a cardboard box:

  1. Place the package on astable surface such as the floor or a large table.
  2. For international shipments, remove the external box to access the primary box.
  3. Open the primary box and remove the foam cover and store for later use.
  4. Place the fiber on top of the unit and carefully lift it out of the box. IPG strongly recommends two people to lift the unit at all times.
  5. Open the internal box and remove the top foam insert.
  6. Check the inventory of following items:
  7. Retain all packaging for future transportation or storage needs.

Unpacking a Unit from a Wooden Crates

See Figure 2-10 on page 2-15 for an illustration of this procedure.

To unpack a unit from a wooden crate:

  1. Place the package on a stable surface such as the floor or a large table. IPG recommends using a powered screw driver to remove all of the top screws securing the top lid.
  2. Remove the top lid and top foam insert.
  3. Using a cutting tool remove the tie wraps securing the fiber to the second insert.
  4. Place the fiber on top of the unit and carefully lift it out of the box. IPG strongly recommends two people to lift the unit at all times.
  5. Check the inventory of following items:
  6. Retain all packaging for future transportation or storage needs
Using the YLR-Series
CAUTION: Refer to the SPECIFICATION YTTERBIUM FIBER LASER document included with this product for proper electrical power requirements.
Before switching the power on, ensure that the incoming AC voltage is equal to the level noted in the specification.
Operate only in an environment with sufficient airflow capacity that allows for the specified heat load developed during operation.
Connecting Electrical Power

Refer to the SPECIFICATION YTTERBIUM FIBER LASER document included with this product to determine your models power requirements.

A power cord is not provided with the laser.

To connect the electrical power:

  1. Wire the power input terminal block on the rear panel of the laser to the voltage, phase and frequency indicated on the SPECIFICATION YTTERBIUM FIBER LASER document for your particular model.

L2 = Line Voltage, PE = Protective Earth, L1 = Line Voltage

  1. Cover the input power terminal block with the supplied cover.
  2. Secure the cable with the supplied strain relief.

 The electrical connection to the unit must be permanently connected to dedicated AC mains with a circuit breaker that does not exceed 20 Amps. 

This must be in close proximity to the unit and within easy reach of the operator and marked as the disconnecting device for the unit.

  1. Follow all national and local requirements when wiring to the unit.
Interface Wire Specification

The minimum wire gage is 18AWG at 15 meters (30 meters maximum regardless of gauge).The gage of the wire must increase as the  distance increases. For connectivity, the wiring and/or cabling must have an overall shield to ensure  proper functionality.The shield is to cover over all conductors and terminate at the unit where the conductors enter/exit the unit.

Connections to External Circuits

Except for Mains connection, the external connections between this product and otherexternal devices  are PELV (Protected Extra Low Voltage) as defined by IEC 61140.Non-Mains outputs of other devices connected to this product should also be PELVor SELV (Safety Extra Low Voltage).

Interlock Safety Circuit

YLR lasers include an Interlock Safety Circuit that uses a dual-channel system with monitored output and manual reset.

When you open the Interlock, the safety circuit opens and power to the laser diodes is removed.

Follow these steps:

  1. Closethe dual channel interlock (on 24-pin connector: pin1 is connected with pin4 and pin2 is connected with pin3). Otherwise, the internal main power supply is switched off and the emission cannot be turned on.

Once any of the pairs of the mentioned above contacts is opened, you cannot switch the lasers power supply on until the second pair is opened and then both pairs are closed.

  1. If you close the interlock (the Emergency Stop button is also released) and a fault is not detected, press the Start button to connect the remote start contacts, which enables the main power supply. The Power Supply (PS) Active signal enters a high state and power is supplied to the laser module.  The laser diodes remain inactive until a separate Laser Enable signal transitions high and an output power level set to a non-zero value.

The power to the laser diodes also turns on. However, under normal conditions the diodes only turn on after emission is enabled.

When you open the interlock or a fault is detected, the laser diodes are discon- nected from the main power supply. The Power Supply Active signal enters a low state.

A detected fault is latched and circuits open the monitored manual reset loop, thus preventing the laser from being restarted until the fault is addressed. If a fault is detected, such as a shorted interlock channel, or a shorted Start button, the safety circuit does not reset until the fault is corrected.

 If the remote Start button is shorted (this is the equivalent of holding in the Startbutton), the circuit does not reset when the interlocks are closed until the  safety circuit processes both channels open and then closed or the power to the safetycircuit is cycled (with the Start button in the opened state in both cases).

Interface Connector Pin Assignments
  1. Connection of potential free contacts only. External contact closure must be rated to > 1A /24 VDC.
  2. To have a possibility of the internal main power supply activation, it is necessary to close the dual channel interlock (pin1 is connected with pin4 and pin2 is connected with pin3). Otherwise, the internal main power supply is switched off and the emission cannot be  turned on. Once either of these connection pairs is opened, it is impossible to switch the lasers power supply on until the second pair is opened and  then both pairs are closed.
  3. Touse this pin, external guide beam control must be enabled (EEABC command).
  4. Touse this pin, external emission control must be enabled (ELE command).

Note: Connector housing is EMC rated and is the intended connection point for the shielding of the customer’s cabling.

Initial Power-Up Sequence

CAUTION:All electrical connections (and water connections for Water-Cooledmodels) must be connected prior to applying power to the unit.

In addition and where applicable, all connections must be secured with screws to ensure proper functionality.

To initially power-up the system:
1. Ensure the E-Stop button on the front panel is pushed in.
2. Inspect the optical output end face to check for dust and debris (refer to “Optical Fiber Connector Inspection and Cleaning” on page C-1 for more information).
3. Properly align the output fiber into the delivery optics.
4. Properly secure optical output collimator.

WARNING: Never look directly into a live fiber and ensure that you wear appropriate laser safety eyewear at all times while operating the product. 

Ensure all power is removed from the laser when handling the delivery cable.

  1. Ensure the Interlock (pins 1to 4, 2 to 3) on the interface connector is closed.
  2. Release (pull out) the E-Stop button on the front panel and ensure that the external E-Stop (from the 24-pin connector) is disengaged if used.
  3. Ensure that the air-cooling vents are unobstructed to allow proper cooling of the device.
  4. Verify that the external cooling unit is powered on (for Water-Cooled models only).
Key Control

You cannot turn on or operate the device until the key switch is in the ON or REMposition. ON or REM is only applicable to products with the Local Control option.Products that do not have this option need to close the remote key circuit, pins 8 and 9 on remote connector (refer to Table 2-6 on page 2-19).

You cannot switch between ON and REM without moving position into OFF and then waiting a few seconds.

Rear Panel: 7-pin and 24-pin Connectors

There are two connectors on the rear panel of chassis: 7-pin and 24-pin. Figure 2-13 on page 2-27 shows the connections to 24-pin connector. 

Figure 2-14 on page 2-28 shows the connections to the 8-pin connector.

The two Interlock contacts ILK1 and ILK2 are connected between pins 1-4 and 2-3.

The Keyswitch is connected between pins 8 and 9. This switch should be closed to power system up in Remote Control Mode. 

The Start button is connected between pins 10 and 11. When closed it starts system in Remote Control Mode.

There is an isolated RS-232 interface (signals on pins 5 and 6 are referenced to return on pin 7). Two isolated analog signals on pins 12 and 13 are referenced to analog return on pin 14. Two differential modulation signals on pins 15 and 16 are also isolated. The control and diagnostic signals on pins 17-19 and pins 21-24 are referenced to return on pin 20 and are isolated.

Two contacts of the E-Stop button are connected between pins 1-4 and 2-3. When you push the E-Stop button, these contacts become open. 

They return to closed state when E-Stop button is released.

One isolated Power Supply Active signal on pins 5 is referenced to the return onpin 7.

Operation Control Modes

There are two control modes for the laser: Local and Remote. You select these modesusing the Keyswitch on the front panel (see Figure 2-2 on page 2-3).

If the Keyswitch is in the ON position, the Local control mode is activated. If the Keyswitch is in REM position, the Remote control mode is activated.

Table 2-9 details the differences between these two modes:

Turning on the Device in Local Control Mode

To turn on the device in Local Control Mode:

  1. Turn the front panel Keyswitch clockwise to the ON position.
  2. Press the Start button to turn on the main power supply.
  3. Wait until the laser becomes active.

The laser is now ready for operation. You can now select a proper operation mode.

Turning on the Device in Remote Control Mode

To turn on the device in Remote Control Mode:

  1. Turn the front panel Keyswitch counterclockwise to the REM position.
  2. Close contact pins eight and nine to provide the remote keyswitch function.
  3. Make momentary closure of pins 10 and 11 to activate the main power supply.
  4. Turn the emission on. Refer to “Local and Remote Control Modes” on page 2-29.
  5. Wait until the laser becomes active.

The laser is now ready for operation. You can now select a proper operation mode.

Selecting Operation Modes

In both control modes (Local and Remote), there are two main modes of laser emission:

  • Continuous (CW)
  • Pulsed (QCW)

Pulse Mode (QCW)

Pulse Mode (for QCW models only, Pulse-mode enabled) laser internally generates a sequence of pulses. Pulse duration and pulse repetition rate can be configured by:

  • Sending corresponding commands via RS-232 interface, or•Using the Pulse Settings submenu on the touchscreen display

The main difference between Pulse and CW modes is that in Pulse Mode the maximum peak power is considerably higher than in CW.

 However, the maximum pulse duration and the maximum duty cycle are limited to certain values  (refer to the SPECIFICATION YTTERBIUM FIBER LASER documentand refer to Figure 2-15). 

When in CW mode, the maximum pulse duration and duty cycle are not applicable.

Operational Sub-Modes

For each mode of laser emission (Continuous or Pulse), there are four operational sub-modes:

  • Standalone
  • Modulation
  • Gate
  • External (Analog) Power Control

The main difference between sub-modes of operation is how the laser power is set and the laser emission is switched on/off.

Continuous Mode (Pulse mode is disabled) laser generates CW emission (except forGate mode).

Standalone Mode (Modulation and Gate control disabled)

The value of pump LD current (controls output power) is controlled by:

  • Sending a RS-232 command, or
  • Sending an Ethernet command, or
  • Using control buttons on the touch-screen (in Local Mode).

 

Modulation Mode
  • The value of pump LD current is controlled as in the Standalone Mode.
  • Laseremission is turned on/off by the user-generated “Modulation” signal applied to pins 15-16 of External Interface Connector.

 

Gate Mode
  • The value of pump LD current is controlled as in the Standalone Mode.
  • Laser emission is controlled both, externally and internally .The user-generated “Gate” signal applied to pins 15-16 of External Interface Connector starts and stops internal generation of pulses.

External (Analog) Power Control

  • Thevalue of pump LD current value is controlled by the voltage applied between pins 12 and 14 of the External Interface Connector (see Table 2-5 on page 2-14 for more information).
  • Pulse sequence generation, modulation and gating are performed as in corresponding modes above.
Pulse Shaper Program (Optional Feature)
  • You can create and store arbitrary waveform pulses in the Pulse Profiles library.
  • You can create and store Pulse sequences (combinations of pulse profiles, delays, and repeats) in the Pulse Sequences library.
  • Pulsescan be started by Emission On command/signal (when Gate Mode is disabled) or by the “Gate” signal applied to Pins 15-16 of External Interface Connector (when Gate Mode is enabled).
  • You cannot select Waveform Mode if either External (Analog) Control or Modulation Mode is enabled.

See “Pulse Shaping” on page 4-1 for details on using the Pulse Shaper program.

Using the Touch-Screen Display

You can use the touch-screen display on the front panel for manual control of the device. 

You can view information about the device’s state and settings. In addition,activating certain commands from the main window invokes additional submenu windows. In Remote Mode, the touch-screen display function is disabled and canonly be used for display purposes. 

Computer Interface/Commands

RS-232 Configuration

A three-wire (RxD, TxD, GND) interface is used (null modem cable). The individual commands are described in “Interface Commands” on page 3-2. See “Interface Connector Pin Assignments” on page 2-19 for details on 24-pin interface connectivity.

The RS-232 interface is configured with the following parameters:

Ethernet TCP/IP Interface

The IP address of the laser is shown on the front panel. Touching the screen where the address is shown displays the network setup menu where you can change the network settings.

The laser listens for connections on port 10001. The command must be sent as a single string in a single packet. 

The individual commands are described in “Interface Commands” on page 3-2.

Interface Commands

All commands and responses consist of printable ASCII characters. Commands are typically three or four letter mnemonic codes followed by a parameter, if required.

All commands and responses are terminated with a <Carriage Return> (CR, 0x0D, \r) character If a CR terminated string is received, but a valid command is not found, a response of “BCMD” is sent.

The commands are shown in Table 3-3, “Interface Commands” as all uppercase for clarity; the actual commands are not case sensitive. 

A space character is also shown between the command and parameter for clarity. The space is not required.

Every command generates a response. The responses generally consist of the command echoed back. If there is a returned value, it is separated from the echoed command by a ‘:’ character.

Pulse Shaping

Overview

The Pulse Shaper program lets you sketch pulse points. It automatically fills in pulse (power level) lines, and computes all the emission pulse characteristics simultaneously. It also performs auto-correction in case constraints are violated.

A laser emission pulse is a custom time-based emission power signal, constrained by an output sample time, maximum power, maximum energy and minimum current (power) threshold, all of which are pre-configured in the laser.

Pulses are not zeroed visually when they go under the power threshold, although that is not reflected in the pulse energy calculation.

To avoid pulse energy limits, either shorten your pulse widths or reduce the value of the Time Scale.

Each time you change a Pulse Shape profile, the pulse widths are updated to reflect the current sketched pulse. You cannot exceed the limits established in the laser configuration.

You can create effective Pulse Shapes to meet the changing requirements of your applications. You can store Pulse Shapes in a Pulse Profiles library on the laser or locally to your computer. You can also create and store Pulse Sequences (combinations of pulse profiles, delays, and repeats) in a Pulse Sequences library or locally to your computer.

Figure 4-1 shows the Pulse Shaper interface.