Unitek Miyachi LM45 Nd User manual

USER’S MANUAL NO. 990-518
REVISION B: December, 1999
HARDWARE MANUAL
FOR THE
LM45 Nd:YAG LASER MARKER

LM45 Nd:YAG LASER MARKER
ii 990-518
Copyright © 1999, Unitek Miyachi Corporation
The engineering designs, drawings and data contained herein are the proprietary work of UNITEK
MIYACHI CORPORATION and may not be reproduced, copied, exhibited or otherwise used without
the written authorization of UNITEK MIYACHI CORPORATION.
Printed in the United States of America
Revision Record
Revision EO Date Basis of Revision
A 17962 4/5/99 Original publication
B 17910 12/99 Revise specifications

LM45 Nd:YAG LASER MARKER
990-518 iii
CDRH COMPLIANCE STATEMENT
The Unitek Miyachi Lasers LM45 Nd:YAG Laser Marker 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), standard 21 CFR 1040.10
for Class IV laser devices.

LM45 Nd:YAG LASER MARKER
iv 990-518
FOREWORD
Thank you for purchasing a Unitek Miyachi Lasers LM45
Nd:YAG Laser Marker.
Upon receipt of the unit, please thoroughly inspect it for
shipping damage prior to its installation. Should there be any
damage, please immediately contact the shipping company to
file a claim, and notify us at:
Unitek Miyachi Lasers
1820 South Myrtle Ave.
P. O. Box 5033
Monrovia, CA 91017-7133
Phone: [phone]
FAX: [phone]
E-mail: [email protected]
The contents of this manual are subject to change without
notice.
If you have any questions about the contents of this manual, or
find any errors or omissions in it, please notify Unitek Miyachi
Lasers.
Unitek Miyachi Lasers is not responsible for any losses due to
improper use of this product.

LM45 Nd:YAG LASER MARKER
990-518 v
Safety Precautions
Before using, read the "Safety precautions"
carefully to understand the correct method of
use for this equipment.
•These precautions are given for safe use of
our products and for prevention of damage
or injury to operators or others.
Be sure to read each of them, since all of
them are important for safety.
•The meaning of the words and symbols is
as follows.
Denotes operations and practices that
may imminently result in serious injury
or loss of life if not correctly followed.
Denotes operations and practices that
may result in serious injury or loss of life
if not correctly followed.
Denotes operations and practices that
may result in personal injury or damage to
the equipment if not correctly followed.
These symbols denote
"prohibition". They are warnings
about actions out of the scope
of the warranty of the products.
These symbols denote actions
which operators must take.
Each symbol with a triangle
denotes that the contents gives
notice of DANGER, WARNING
or CAUTION to the operator.
Do not touch the inside of the laser marker unnecessarily.
Since source voltage of single-phase 200V or 220V is applied to the laser marker,
high voltages are applied to its inside. Do not touch the inside of the laser marker
unnecessarily with the power turned on. You may receive an electric shock.
Never disassemble, repair or modify the laser marker.
These actions can cause electric shock and fire. Do not do anything other than the
maintenance described in the operation manual.
Do not look at or touch the beam.
Both direct laser beams and scattered laser beams are highly dangerous. If the beam
enters the eye directly, it can cause blindness.
!
CAUTION
!
DANGER
!
DANGER
!
WARNING
!

LM45 Nd:YAG LASER MARKER
vi 990-518
Wear protective glasses.
Be sure to wear protective glasses while using the laser marker.
Even if you wear them, you may lose your sight if the laser beam enters your eyes directly.
Do not expose your skin to the laser beam.
Your skin may be severely burnt.
Use proper tools (wire strippers, pressure wire connectors, etc.) for termination of the
connecting cables.
Do not cut the wire conductor. A flaw on it can cause fire and electric shock.
Do not damage the power cable or connecting cables.
Do not tread on, twist or tense any cable. The power cable and connecting cables may be
broken, and that can cause electric shock and fire.
Do not use a damaged power cable, connecting cable or plug.
A damaged cable or a plug can cause electric shock, short circuits and fire. If any part
needs to be repaired, consult Unitek Miyachi Lasers. or your distributor.
Use only specified cables.
Use of a cable of insufficient capacity can cause fire.
Connect the cables securely.
Insecure connection of a cable can cause fire and electric shock.
Stop the operation if any trouble occurs.
Continuous operation after occurrence of a trouble such as burning smell, abnormal sound,
abnormal heat, smoke, etc. can cause electric shock and fire. If such a trouble occurs,
immediately consult Unitek Miyachi Lasers. or your distributor.
Ground the laser marker.
If the laser marker is not grounded, you may get an electric shock when there is trouble or
electricity leaks.
Use a stopper.
The laser beam is dangerous to human bodies. Prevent emission through the air by using a
stopper (a heat-resistant, laser beam-absorbing, -scattering material).
!
!
!
!
!
!
WARNING
!

LM45 Nd:YAG LASER MARKER
990-518 vii
Do not splash water on the laser marker.
Water splashed over the electric parts, can cause electric shock and short circuits.
Install the laser marker on a firm and level surface.
If the laser marker falls or drops, injury may result.
Do not place a water container on the laser marker.
If water spills, insulation of the laser marker will deteriorate, and that can cause electric
leaks and fire.
Keep combustible matter away from the laser marker.
Spatter can ignite combustible matter. If it is impossible to remove all combustible matter,
cover it with non-combustible material.
Keep a fire extinguisher nearby.
Keep a fire extinguisher in the laser marking shop in case of fire.
Maintain and inspect the laser marker periodically.
Maintain and inspect the laser marker periodically, and repair any damage before starting
operation.
Do not apply the laser beam to combustible materials.
To avoid risk of fire never apply the laser beam to flammable or combustible materials.
Keep the power plug clean and insert it all the way.
If the plug is covered with dust or is not inserted completely, it will become hot and can
cause fire.
When inserting or disconnecting the plug, hold the body.
If the cable is pulled to disconnect the plug, it may be broken, and that can cause electric
shock and fire.
When leaving the laser marker unused for a long time, disconnect the power plug from the power
outlet.
Deterioration of insulation can cause electric shock, leakage and fire.
!
!
!
!
!
!
!
CAUTION
!

LM45 Nd:YAG LASER MARKER
viii 990-518
PRECAUTIONS
General
This instruction manual describes the operation and maintenance of the
LM45 Nd:YAG Laser Marker, and provides instructions relating to its SAFE
use. Procedures described in this manual MUST be performed as detailed by
QUALIFIED and TRAINED personnel.
For SAFETY, and to effectively take advantage of the full capabilities of the
LM45 Nd:YAG Laser Marker, please read this instruction manual and the
Laser Safety Manual, Part No. 990-509, 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 LM45 Nd:YAG Laser
Marker.
Operation
When operating the Laser Marker unit, always wear protective goggles having
an optical density of at least 6 at a wavelength of 1064 nanometers.
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 Marker safely. The LSO must take charge of the key to the
key switch to ensure that the Laser Marker is operated only by qualified and
authorized personnel.
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 Marker, read Chapters 4,
User Maintenance; and Chapter 5, Service, 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 hazards and/or
laser radiation hazards.
Do not modify the Laser Marker without prior written approval from Unitek
Miyachi Lasers.

LM45 Nd:YAG LASER MARKER
990-518 ix
CONTENTS
Revision Record................................................................................................................................. ii
CDRH Compliance Statement ........................................................................................................... iii
Foreword............................................................................................................................................ iv
Precautions......................................................................................................................................... v
CHAPTER 1: System Description................................................................................................ 1-1
Section I: Features................................................................................................................... 1-1
Section II: System Components................................................................................................ 1-2
Controller ............................................................................................................................... 1-2
Front Panel....................................................................................................................... 1-2
Rear.................................................................................................................................. 1-3
Control Panel ................................................................................................................... 1-3
Temperature Control Panel.............................................................................................. 1-4
Laser Resonator and Galvonometer Head ............................................................................. 1-5
Section III: I/O Signal Interface................................................................................................. 1-7
External Input/Output (EXT I/O) Connector......................................................................... 1-7
Connector Configuration ................................................................................................. 1-7
Input Signals .................................................................................................................... 1-8
Output Signals.................................................................................................................. 1-9
CHAPTER 2: Getting Started...................................................................................................... 2-1
Section I: Planning .................................................................................................................. 2-1
Physical Requirements........................................................................................................... 2-1
Power Requirements .............................................................................................................. 2-1
Cooling Water Requirements................................................................................................. 2-1
Section II: Transportation and Handling .................................................................................. 2-2
Section III: Power Supply Connections..................................................................................... 2-2
Connection of Power Supply Cable....................................................................................... 2-2
Section IV: Cooling System Connections.................................................................................. 2-2
Connection of Water Supply Hoses....................................................................................... 2-3
Connection of Deionized Water Hoses Between Controller and Oscillator.......................... 2-3
Cooler Unit Deionized Water Supply .................................................................................... 2-3
Section V: Signal Connections ................................................................................................. 2-4
Connection of Control Cables Between Controller and Oscillator........................................ 2-4

LM45 Nd:YAG LASER MARKER
x 990-518
CONTENTS (continued)
CHAPTER 3: Operating Instructions ......................................................................................... 3-1
Section I: Operating Precautions............................................................................................. 3-1
Section II: Preparing for Operation .......................................................................................... 3-1
Section III: Operation................................................................................................................. 3-1
CHAPTER 4: User Maintenance ................................................................................................. 4-1
Section I: Maintenance Precautions ........................................................................................ 4-1
Precautions............................................................................................................................. 4-1
Section II: Maintenance Procedures ......................................................................................... 4-1
Cooler Maintenance............................................................................................................... 4-1
Air Filter Cleaning ........................................................................................................... 4-1
Water Draining Occasions ............................................................................................... 4-2
Solenoid Valve Strainer Cleaning.................................................................................... 4-2
Replacing the Ion-Exchange Cartridge, Water Filter, and Deionized Water .................. 4-3
Draining the Deionized Water ......................................................................................... 4-4
Draining the Input Water ................................................................................................. 4-4
Draining the Water to Prevent Freezing .......................................................................... 4-5
CHAPTER 5: Service .................................................................................................................... 5-1
Section I: Service Precautions................................................................................................ 5-1
Precautions............................................................................................................................. 5-1
Section II: Service Procedures.................................................................................................. 5-1
Lamp and Flow Tube Replacement ............................................................................................. 5-1
Cleaning and Replacement of F·2Lens Protective Glass............................................................ 5-5
Fuse Replacement ........................................................................................................................ 5-5
Section III: Troubleshooting ...................................................................................................... 5-6
Troubleshooting ..................................................................................................................... 5-6
Section IV: Parts Lists................................................................................................................ 5-9
Parts Lists............................................................................................................................... 5-9
Section V: Repair Service......................................................................................................... 5-10
Repair Service........................................................................................................................ 5-10