Miyachi LF Series User manual

USER’S MANUAL 990-929
Rev. 5 March 2014
OPERATOR MANUAL
FOR THE
LF SERIES LASER

LF SERIES FIBER LASER
ii 990-929
Copyright © 2014, Miyachi America Corporation
The engineering designs, drawings and data contained herein are the proprietary work of MIYACHI
AMERICA CORPORATION and may not be reproduced, copied, exhibited or otherwise used without
the written authorization of MIYACHI AMERICA CORPORATION.
Printed in the United States of America
Revision Record
Revision EO Date Basis of Revision
1 N/A 12/2013 Production release.
2 N/A 12/13 Rewrite Conditions
3 N/A 12/17/13 Revised per QA
4 N/A 12/18/13 Update Callouts
5 N/A 3/18/14 Add Refrigerated Chiller

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CONTENTS Page
Revision Record ......................................................................................................................................... ii
Contents .............................................................................................................................................. iii
Contact Us ................................................................................................................................................v
CDRH Compliance Statement ....................................................................................................................v
Safety Precautions ..................................................................................................................................... vi
Chapter 1. System Description
Section I: Features .................................................................................................................................. 1-1
Section II: System Components ............................................................................................................. 1-3
Overview .......................................................................................................................................... 1-3
Fiber Laser Controller ...................................................................................................................... 1-4
Fiber Laser Supply System ............................................................................................................. 1-5
Chiller (Thermoelectric Type) ......................................................................................................... 1-6
Chiller (Refrigerant Type) ............................................................................................................... 1-7
Chapter 2. Installation And Setup
Section I: Planning ................................................................................................................................. 2-1
Physical Requirements ..................................................................................................................... 2-1
Section II: Installation ............................................................................................................................ 2-2
Installation Procedures ..................................................................................................................... 2-2
Power Requirements ....................................................................................................................... 2-3
Power Connection ............................................................................................................................ 2-3
Section III: Connections Reference ....................................................................................................... 2-4
Overview .......................................................................................................................................... 2-4
Fiber Laser Controller ...................................................................................................................... 2-5
Fiber Laser Supply System .............................................................................................................. 2-6
Chiller (Thermoelectric Type) ......................................................................................................... 2-8
Chiller (Refrigerant Type) ............................................................................................................... 2-9
Chapter 3. Operating Instructions
Section I. Welding Preparation .............................................................................................................. 3-1
Preparation ....................................................................................................................................... 3-1
General Operator Safety .................................................................................................................. 3-1
Starting the Laser ............................................................................................................................. 3-1
Section II. Operation Control Panel ....................................................................................................... 3-2
Prepare Processing Point and Set the Weld Schedule ..................................................................... 3-2
Schedule Screen ............................................................................................................................... 3-2
Status Screen .................................................................................................................................... 3-5
Trouble Screen ................................................................................................................................. 3-6

LF SERIES FIBER LASER
iv 990-929
Section III. External I/O ......................................................................................................................... 3-7
Welding Using The External I/O ..................................................................................................... 3-7
Shutdown through External I/O ....................................................................................................... 3-7
Page
Chapter 4. Maintenance
Section I: Precautions ............................................................................................................................ 4-1
Section II. Trouble Read Messages ....................................................................................................... 4-2
Section III: Routine Maintenance Schedule .......................................................................................... 4-4
Rear Panel Access ............................................................................................................................ 4-4
Section IV: Maintenance Procedures ..................................................................................................... 4-5
Thermoelectric Type ........................................................................................................................ 4-5
Approval Coolants .................................................................................................................... 4-5
Filling the Coolant, Priming, and Draining Instructions .......................................................... 4-6
Cleaning the Air Filter .............................................................................................................. 4-7
Draining the Chiller .................................................................................................................. 4-7
Clearing a Configuration Error ................................................................................................. 4-7
Refrigerant Type .............................................................................................................................. 4-8
Approval Coolants .................................................................................................................... 4-8
Checking Water Level & Start Chiller ..................................................................................... 4-9
Draining the System Fluid ........................................................................................................ 4-9
Additional Procedure for Cold Climate Conditions ................................................................. 4-9
Replacing the Water Filter ...................................................................................................... 4-10
Section V: Parts List ............................................................................................................................ 4-11
Consumable Parts .......................................................................................................................... 4-11
Section VI: Repair Service ................................................................................................................... 4-12
Appendix A. Technical Specifications ............................................................................................... A-1
Appendix B. Electrical And Data Connections .................................................................................B-1
Appendix C. External RS-232 Communication ................................................................................C-1

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CONTACT US
Thank you for purchasing a Miyachi Unitek LF Series Fiber Laser. Upon receipt
of the laser, please thoroughly inspect it for shipping damage before you install it.
If there is any damage, contact the shipping company immediately to file a claim,
and notify Miyachi America at:
Miyachi America Corporation
1820 South Myrtle Ave.
Monrovia, California 91017-7135
Phone: [phone]
FAX: [phone]
E-mail: [email protected]
The contents of this manual are subject to change without notice. If you have any
questions, or find any errors or omissions in it, please contact us.
Miyachi America is not responsible for any losses due to improper use of this
product.
CDRH COMPLIANCE STATEMENT
The Miyachi America Corporation LF SERIES FIBER LASER is certified to be
fully compliant with all applicable standards and regulations as set forth by the
United States of America’s Health and Human Services (HHS), Food and Drug
Administration (FDA), Center for Devices and Radiological Health (CDRH), title
21 Code of Federal Regulations (CFR) sections 1002, 1010, and 1040 for Class
IV laser devices.
Reference CDRH Accession number is available upon request.

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SAFETY PRECAUTIONS
General
This Operator's Manual describes the Operation and Maintenance for all models of
the LF Series Fiber Laser, and provides instructions relating to its SAFE use.
Procedures described in this manual must be performed as detailed by qualified
and trained personnel.
NOTE: For the rest of this manual, all models of LF Series Fiber Laser will
simply be referred to as “the Laser,” except in specific instances where unique
descriptions are required such as specifications, connections, etc.
For SAFETY, and to effectively take advantage of the full capabilities of the Laser,
please read this instruction manual and the Laser Safety Manual
(Part Number 990-502) thoroughly before attempting to use the Laser.
After reading this manual, retain it for future reference when any questions arise
regarding the proper and SAFE operation of the Laser.
Operation
When operating or servicing the Laser, always wear Protective Goggles having an
optical density of at least 7+at a wavelength of 1060-1150 nanometers for the
operation of the Laser.
Appoint a Laser Safety Officer. The Laser Safety Officer (LSO) must provide
personnel with sufficient training so that personnel can operate, maintain and
service the Laser safely. The LSO must take charge of the key to the Key Switch
to ensure that only qualified and authorized personnel operate the Laser.
Establish and control a dedicated Laser Operation Area. The Laser Safety Officer
must isolate the Laser Operation Area from other work areas and display signs
warning that the Laser Operation Area is off-limits to unauthorized personnel.
Maintenance/Service
Before performing any maintenance on the Laser, read Chapter 4, Maintenance
thoroughly. Use the appropriate tools for terminating the connecting cables, being
careful not to nick the wire conductors.
Procedures other than those described in this manual or not performed as
prescribed in this manual, may expose personnel to electrical and/or laser radiation
hazards.
Do not modify the Laser without prior written approval from the Miyachi America
Corporation.

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B
efore using this equipment, read the Safety Precautions carefully to understand the correct usage of the
equipment.
These precautions are given for the safe use
of the Laser and for prevention of injury to
operators or others.
Be sure to read each of the instructions, as
they are all important for safe operation.
The meaning of the words and symbols are
as follows:
DANGER
Do not touch the interior of the Laser when it is turned ON.
Doing so may result in electric shock.
Never attempt to disassemble, repair, or modify the Laser.
Doing so may result in electric shock or fire.
Refrain from any mechanical adjustment other than the maintenance procedures specifically
described in the operation manual.
Never expose eyes or skin to laser irradiation.
Exposure to direct or scattered laser light is extremely hazardous.
Direct exposure of the eye to laser beams may result in blindness.

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WARNING
Wear protective glasses.
Be sure to wear protective glasses while using the Laser. Even with eye protection, you may
lose your sight if you look directly at the laser beam.
Do not expose your skin to the laser beam.
Your skin may be severely burned.
Do not touch any processed part during, or immediately after processing.
Welded parts are very hot.
Use only specified cables.
A cable with insufficient capacity or loose connections can cause electric shock or fire.
Do not use a damaged power cable, connecting cables, or plugs.
Do not step on, twist, or tense any power cable. The power cable and connecting cables
may be damaged which can cause electric shock, short circuit, or fire. If any part needs to be
repaired or replaced, consult Miyachi America or your distributor.
Stop operation if any trouble occurs.
If you detect a burning smell, abnormal sounds, abnormal heat, smoke, etc. from the Laser,
turn the power OFF immediately to prevent fire or electric shock. Contact Miyachi America
or your distributor for help.
Ground the Laser.
If the Laser is not grounded, you may get an electric shock when there is trouble or if
electricity leaks through the protective insulation.
Use a stopper plug.
Laser beams are dangerous to the human body. Prevent accidental leakage of the laser
beam by using a stopper (a heat-resistant, laser beam absorbing material).
People with pacemakers MUST stay away from the Laser.
When the Laser is operating, it generates a magnetic field, which adversely affects
pacemakers. People who use a pacemaker must not approach the Laser, or walk around
the laser shop while the Laser is operating, unless their medical doctor has deemed it safe to
do so.

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CAUTION
Keep water and water containers away from the Laser.
Water spilled on the Laser can cause a short circuit, electrical shock, or fire.
Use proper tools (wire strippers, pressure wire connectors, etc.) for terminations of the
connecting cables.
Do not nick the wire conductor. Doing so can cause a short circuit, electric shock, or fire.
Install the Laser on a firm, level surface.
Injury may result if the Laser falls over or drops from an uneven surface.
Keep combustible matter away from the Laser.
Laser spatter can ignite combustible materials. If you cannot remove all combustible materials,
cover them with a non-combustible material.
NEVER apply the laser beam to combustible materials.
To avoid the risk of fire, never apply the laser to flammable or combustible materials.
When operating the Laser, do not cover it with a blanket, cloth, etc.
Heat generated by the operating Laser may ignite a blanket or cover.
Do NOT use the Laser for purposes other than processing metal.
Use of the Laser on other materials, or in a manner other than specified may cause fire or
electrical shock.
Wear protective gear when operating the Laser.
Wear protective gear such as protective gloves, long-sleeved jacket, leather apron, etc. so that
Laser spatter will not burn the skin.
Keep a fire extinguisher nearby.
Make sure there is a fire extinguisher in or near the Laser shop in case of fire.
Regularly inspect and maintain the Laser.
Regular inspection and maintenance is essential for safe operation and long life of the Laser.
If you see any damage, make necessary repairs before operating the Laser.

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Guidelines for Normal Use
1. Appoint a Laser Safety supervisor. Ensure that the supervisor has as much expertise and experience
with lasers and laser equipment as possible.
The supervisor, who will be in charge of the laser key switch, is responsible for familiarizing users
with safety issues and for coordinating laser welding.
2. Partition off all areas that may be exposed to laser light.
The supervisor is responsible for posting signs to keep unauthorized personnel out of the laser area.
3. Install the Laser on a solid, level surface.
To prevent errant laser processing, place workpieces on the same stand as the Laser Head so
that the workpieces do not vibrate during laser processing.
4. To ensure optimal welding quality, use the Laser in a location where ambient temperatures are 41ºF
to 105ºF (5°C to 40°C), free of sudden temperature fluctuations and a relative humidity less than
85% (non-condensing). Do not use the laser in any of the following locations:
Locations with excessive dirt or oil mist
Locations in which the unit may be subject to vibration or impact
Locations in which the unit may be exposed to chemicals
Locations near sources of high-frequency noise, or
Locations in which condensation may form on the unit's surface.
5. If the room temperature changes quickly (as when a heater is turned ON in cold weather), moisture
may condense on the optical components, resulting in fogging or collection of dust.
Avoid sudden changes in temperature. Under the conditions in which condensation may occur, wait
for a period of time after turning the unit ON before beginning operations.
6. If the exterior of the unit becomes soiled, wipe it with a soft dry or lightly moistened cloth.
Clean heavily soiled areas with a cloth moistened with diluted neutral detergent or alcohol. Do not
use paint thinner, acetone, benzene, or similar chemicals, which may discolor or damage the unit.
7. Never place screws or other foreign objects inside the Laser. Such objects can damage the unit.
8. Operate the switches and buttons gently by hand.
Applying excessive force or using the tip of a screwdriver, pen, or other instrument may damage the
Laser.
9. Operate only one switch or button at a time.
Attempting to operate several at a time may damage the Laser.