Amada ML-7 Series User manual

Installation/Maintenance
Z11OM1158223-20
LD-Pumped Laser Marker
ML-7 Series
ML-9001A
OPERATION MANUAL

■Organization of This Manual
This documentation for the LD-pumped laser marker covers installation, operation, maintenance, and
specifications. The documentation is organized as follows. Refer to each manual as needed.
For marking in LMDraw6 using a computer, refer to the manual for LMDraw6.
Specifications
Information about marker features, system configuration (constituent parts, accessories, and options),
specifications, and interface specifications.
Installation/Maintenance (this manual)
Instructions from unpacking to installation, including safety precautions and service and maintenance
procedures.
Operating Unit
Instructions for marking from the Operating Unit touch panel.
■Notes
•This documentation is intended for ML-7 series (ML-7111A/7112AH/7064A) and ML-9001A
markers. Figures and screenshots are based on the ML-7111A, unless information for other
markers is significantly different.
•Unauthorized reproduction of this manual in whole or in part is prohibited.
•The contents of this manual are subject to change without notice.
•Every effort has been made to ensure the accuracy of this manual, but if you notice oversights or
errors, please notify your dealer.
•Be sure to read the user's manuals for any equipment used in conjunction with the system (e.g.,
documentation for computer systems).
•This system incorporates a QR code engine developed by Denso Wave Inc.
•Graphics rendering support in LMDraw6 (for importing DXF data) is provided by CADBuilderOCX,
developed by Knack SoftWare Inc.
■Trademarks
•Microsoft, Windows, and OpenType are trademarks or registered trademarks of Microsoft
Corporation in the United States and other countries.
•AutoCAD is a trademark or registered trademark of Autodesk Incorporated in the United States
and other countries.
•TrueType is a trademark or registered trademark of Apple Incorporated in the United States and
other countries.
•Intel and Celeron are trademarks or registered trademarks of Intel Corporation or its subsidiaries
in the United States and other countries.
•Other company and product names in this manual are trademarks or registered trademarks of
their respective owners.
■Symbols Used in This Manual
•Menus, icons, buttons, windows, tabs, and keys are indicated in brackets ([ ]).
Example: Click the [OK] button.
•Cross-references are enclosed in quotations.
Example: See 3.2.1 "Marking Condition Settings" (p. 5).
Indicates instructions that must be followed to prevent hardware or software damage or
operating errors.
Indicates that incorrect operation may pose a risk of injury or damage.
Indicates additional information on a particular topic.

Chapter Overview
Chapter1 Safety Precautions
Precautions for safe use of the marker
Chapter2 Unpacking
Size and mass of the marker packaging, as well as lists of package contents
Chapter3 Installation
Marker installation requirements and instructions
Chapter4 Maintenance
Marker maintenance information and instructions
Chapter
1
Chapter
2
Chapter
3
Chapter
4
A
Appendix

1
ML-7 Series/ML-9001A
Contents
■Organization of This Manual
■Notes
■Trademarks
■Symbols Used in This Manual
Chapter Overview
Chapter 1 Safety Precautions...............................................................5
1.1 Meaning of Symbols.......................................................................6
1.2 Danger, Warning, and Caution Items.............................................7
1.3 Guidelines for Normal Use...........................................................10
1.4 For Disposal.................................................................................13
1.5 Warning/Explanation Labels for Safety........................................14
■ML-7111A.....................................................................................................14
■ML-7112AH ..................................................................................................14
■ML-9001A.....................................................................................................15
■ML-7064A.....................................................................................................15
1.6 LD (Diode Laser) Precautions......................................................16
Chapter 2 Unpacking...........................................................................17
2.1 Moving the Container...................................................................17
■Container Size and Mass .............................................................................17
2.2 Checking the Container Contents ................................................18
■Head Unit Container..................................................................................... 18
■Control Unit Container..................................................................................19
■Chiller Unit Container (ML-7064A Only).......................................................19
■Coolant Container (ML-7064A Only)............................................................19
■Options.........................................................................................................20
Chapter 3 Installation ..........................................................................21
3.1 Installation Requirements.............................................................21
■Control Unit ..................................................................................................21
■Head Unit .....................................................................................................23
■Head Unit Air Purge Installation (ML-7064A Only).......................................26
3.2 Connections .................................................................................27
■ML-7111A and ML-9001A ............................................................................28
■ML-7112AH ..................................................................................................28
■ML-7064A.....................................................................................................29
3.3 Coolant Tubing (ML-7064A Only) ................................................31
■Coolant Tubing.............................................................................................31
■Supplying Coolant, Releasing Air in Hoses..................................................31

2ML-7 Series/ML-9001A
Contents
Chapter 4 Maintenance........................................................................33
4.1 Maintenance Tasks......................................................................33
4.2 Part Replacement Schedule ........................................................34
4.3 Air Filter Inspection and Replacement .........................................36
4.3.1 Control Unit .......................................................................36
■ML-7111A and ML-9001A ............................................................................36
■ML-7112AH ..................................................................................................37
■ML-7064A.....................................................................................................38
4.3.2 Head Unit ..........................................................................40
■ML-7111A and ML-9001A ............................................................................40
■ML-7112AH ..................................................................................................40
4.4 Protective Glass Inspection and Replacement ............................41
4.4.1 Cleaning the Protective Glass...........................................41
4.4.2 Replacing the Protective Glass.........................................41
4.5 FC-LD (Oscillation Unit) Inspection and Replacement.................43
■FC-LD (Oscillation Unit) Warranty Period.....................................................43
■ML-7111A and ML-9001A ............................................................................45
■ML-7112AH ..................................................................................................50
■ML-7064A (Oscillation Unit Removal) .......................................................... 54
■ML-7064A (Oscillation Unit Attachment) ......................................................57
4.6 Control Unit Maintenance and Inspection (ML-7064A Only)........61
■Check fan operation (daily) ..........................................................................61
■Check and retighten screws and connectors (every 3 months)....................61
4.7 Chiller Unit Maintenance and Inspection (ML-7064A Only) .........62
4.7.1 Items to Check and Inspect...............................................62
■Check the temperature setting (daily) ..........................................................62
■Check the amount of coolant (daily).............................................................62
■Confirm there are no leaks (daily) ................................................................62
■Confirm there are no unusual noises (daily).................................................62
4.7.2 Using the Heater ...............................................................63
4.7.3 Draining Coolant ...............................................................64
4.7.4 Replacing Coolant.............................................................65
4.7.5 Replacing the Coolant Filter..............................................66
4.7.6 Replacing the Ion-Exchange Resin...................................68
4.7.7 Adjusting the Flow.............................................................70
4.7.8 Cleaning the Chiller Unit Air Filter.....................................71
4.8 Backup Lithium Battery Replacement..........................................72
■ML-7111A and ML-9001A ............................................................................72
■ML-7112AH ..................................................................................................73
■ML-7064A.....................................................................................................74
4.9 Memory Card Management .........................................................76
■Memory Card Backup...................................................................................76
■Restoring Backup Data ................................................................................76
Appendix A Troubleshooting.................................................................80

3
Contents
ML-7 Series/ML-9001A
A.1 Error Messages on the Operating Unit.........................................80
A.2 Error Codes..................................................................................82
A.3 Problems in Marking Results .......................................................86
A.4 If No Laser Beam Is Projected .....................................................87
Index .................................................................................................................88

4ML-7 Series/ML-9001A
Contents

5
ML-7 Series/ML-9001A
Safety Precautions
Before using the Laser Marker, carefully read these safety precautions to ensure correct use.
•These precautions are intended to ensure safe use of the unit and to prevent damage or personal
injury to the user and other individuals. Be sure to read all precautions; they are critical for ensuring
safe use.
•The warning symbols are defined as follows:
Incorrect operation poses imminent risk of serious injury or fatality.
Incorrect operation may pose risk of serious injury or fatality
Incorrect operation may pose risk of injury or damage.
DANGER
WARNING
CAUTION
Chapter
1

Chapter
1
6ML-7 Series/ML-9001A
Chapter 1Safety Precautions
1.1 Meaning of Symbols
These symbols indicate prohibited actions.
The symbols warn against actions that will void the terms of the warranty.
The prohibited action is depicted in a circle or illustrated in a figure or described in a statement nearby.
These symbols indicate actions users must take.
The prohibited action is depicted in a circle or illustrated in a figure or described in a statement nearby.
The symbols indicate danger, warning, or caution items.
The prohibited action is depicted in a circle or illustrated in a figure or described in a statement nearby.

Chapter
1
7
ML-7 Series/ML-9001A
1.2 Danger, Warning, and Caution Items
1.2 Danger, Warning, and Caution Items
Do not touch inside the Laser Marker when it is switched on
Doing so may result in electric shock.
Never attempt to disassemble, repair, or modify the Laser
Marker
Doing so may result in electric shock or fire.
Refrain from any mechanical adjustment other, than
maintenance 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.
Never burn, destroy, cut, crush or chemically decompose
the Laser Marker
This product incorporates parts containing gallium arsenide
(GaAs).
DANGER

Chapter
1
8ML-7 Series/ML-9001A
Chapter 1Safety Precautions
Wear protective eyewear
Always wear protective eyewear having an optical density of at
least 7 when using the Laser Marker.
Keep in mind that exposure of the eyes to direct laser
irradiation through protective eyewear may result in blindness,
even when wearing protective eyewear. Protective eyewear
attenuates the laser beam, but does not block it.
Never aim the laser at any parts of your own body or those
of other individuals
Exposure to laser beams will cause severe burns.
Never aim the laser at yourself or at anyone else.
Do not touch workpieces during or just after marking
Workpieces may still be very hot.
Use only the specified cables. Make sure they are firmly
connected
Using cables of inadequate current capacity or connecting
cables loosely may result in fire or electric shock.
Avoid damaging power or connecting cables
Do not step on, twist, or pull cables.
Damaged cables may result in electric shock, short circuits, or
fires.
To repair or replace cables, contact your dealer or us.
Stop using the Laser Marker if any problems arise
Continuing to use the Laser Marker in the presence of
abnormalities (fumes, unusual sounds, excessive heat, smoke,
and so forth) may result in electric shock or fire.
In this case, immediately turn OFF the Laser Marker and
contact your dealer or us.
Ground the Laser Marker
Failure to ground the Laser Marker may result in electric shock
if the Laser Marker is damaged or if electrical leaks occur.
Pacemaker users must not approach the Laser Marker
Unless a physician has consented, pacemaker users must not
approach the Laser Marker in use, or even approach the
working area.
The Laser Marker generates electromagnetic fields that may
affect pacemaker function.
WARNING

Chapter
1
9
ML-7 Series/ML-9001A
1.2 Danger, Warning, and Caution Items
Avoid spilling or splashing water on the Laser Marker
The presence of water on electrical parts may result in electric
shock or short circuits.
Use the appropriate tools to terminate the power cable (wire
strippers, crimp tools, etc.)
Failure to use the appropriate tools may result in damage to the
wire core, resulting in fire or electric shock.
Install the Laser Marker on a solid, level surface
Should the Laser Marker tip over or fall, injury or damage to the
unit may result.
Never place liquid containers on the Laser Marker
Liquid spills may degrade the unit's insulation, resulting in
electric leaks or fire.
Keep combustible materials away from the Laser Marker
Sparks or spattering material may ignite combustible matter.
Do not apply the laser beam to combustible materials
To avoid risk of fire, never apply the laser beam to flammable or
combustible materials.
During use, do not cover the Laser Marker with a blanket,
cloth, or similar articles.
When using the Laser Marker, do not cover with a blanket,
cloth, or similar articles.
The Laser Marker may become extremely hot, resulting in fire.
Do not use the Laser Marker for any purpose other than
laser marking
Using the unit for nonspecified applications may result in
electric shock or fire.
Wear protective gear
Use protective gloves, long-sleeve garments, leather aprons, or
other appropriate protective gear.
Sparks or spattering material may burn the skin on contact.
Keep a fire extinguisher nearby
Keep a fire extinguisher in the marking area in case of fire.
Maintain and inspect the unit at periodic intervals.
Maintain and inspect the unit at periodic intervals. Repair any
damage before resuming use.
CAUTION

Chapter
1
10 ML-7 Series/ML-9001A
Chapter 1Safety Precautions
•Appoint a safety supervisor with as much expertise and experience with lasers and laser
equipment as possible. The supervisor, who will be in charge of the laser key switch, should
familiarize users with safety issues and coordinate laser marking.
•Partition off the area which might be exposed to the laser beam. A supervisor should control this
work area and post signs to keep out unauthorized personnel.
•Install the Laser Marker on a solid, level surface. Using the unit (other than the Head Unit) at an
angle or on its side may damage it.
- To prevent distorted marking, put workpieces on the same stand as the Head Unit so that
the workpieces do not vibrate during marking.
- The required power supply is as follows: single-phase 100 V AC (50/60 Hz) with a capacity
of at least 10 A, or 200 V AC (50/60 Hz) with a capacity of at least 5 A. (ML-7064A: single-
phase 200 V AC (50/60 Hz) with a capacity of at least 10 A.)
- Be sure to ground the unit with a Class D ground.
•To ensure optimal marking quality, use the Laser Marker in a place where the ambient
temperature is 5 to 35 °C, where the relative humidity is 40 to 80%, and where it is not subject to
sudden temperature fluctuations. In addition, do not use the marker in the following places:
- Where there is excessive dirt, dust, or oil mist
- Where the unit is subject to vibration or impact
- Where the unit is exposed to chemicals
- Where there is a nearby source of high noise
- Where moisture may condense on the unit
•Always use purified water as the coolant. (for the ML-7064A)
If you use another type of water (e.g., tap water, industrial water) instead of purified water, an
alarm will sound about thirty minutes after startup to signal low fluid resistance, and the marker
will stop. The recommended range of electric resistivity is 1 M-cm to 3 M-cm.
•If the room temperature changes quickly (such as when a heater is turned on in cold weather),
moisture may condense on the optical elements. Dust may adhere or the elements may become
fogged up with condensation. Thus, avoid sudden temperature changes. If condensation has
occurred, wait for a while after turning the unit on before starting operation.
•The exterior of the system should be wiped clean using a soft or moist cloth. If the exterior is
particularly dirty, wipe it clean using diluted detergent or alcohol.
Do not use paint thinner, benzine, or similar chemicals, which may discolor the unit or deform
parts.
•Do not place screws or other foreign objects inside the marker. This may damage the unit.
•Operate the switches and buttons gently by hand. Applying excessive force or using the tip of a
screwdriver, a pen, or other instrument may damage or break the switches or buttons.
•Operate only one switch or button at a time. Operating several switches or buttons at a time may
damage or break the unit.
1.3 Guidelines for Normal Use

Chapter
1
11
ML-7 Series/ML-9001A
1.3 Guidelines for Normal Use
•If a computer and the Operating Unit are both connected to the Control Unit, do not perform
operations on both simultaneously. This may corrupt memory card data and prevent marking; it
may also prevent the marker from starting up.
•Do not turn off the main switch (or Power keyswitch) while a computer is connected to the
Control Unit.
•When using the Operating Unit to change data, wait at least 2 seconds after making the changes
until turning off the main switch (or Power keyswitch).
•If a computer is connected, it will continue to access the memory card for about 15 seconds after
going offline. During this time, do not turn off the main switch (or Power keyswitch) of the Control
Unit.
•If a computer is connected, never disconnect the USB cable before turning off the main switch
(or Power keyswitch).
•For more consistent marking, allow the unit to warm up for about 10 to 30 minutes after turning
on the LD. The warmup time varies depending on the temperature and workpiece material.
•Use only memory cards purchased from us. If commercial cards are used, the unit may not
function normally.
•Before inserting or removing the memory card, always turn off the main switch (or Power
keyswitch). If the main switch (or Power keyswitch) is on when cards are inserted or removed,
data may be lost or the memory card may become unusable.
•Back up memory card data regularly.
If the memory card data becomes corrupted, it may prevent normal marking or the marker may
not start.
•The memory card connector can withstand 10,000 insertion/removal cycles, according to values
published by the connector manufacturer.
•When a supervisor or operator enters the area where the laser is used, protective measures not
to exceed the MPE* level must be taken.
* MPE: The maximum level of permissible exposure of the eyes or skin to laser beams.
Abbreviation of Maximum Permissible Exposure.
•Since the surge absorber is built in, do not perform the insulation resistance test and the
withstand voltage test. If the surge absorber fails, the marker may become unusable.

Chapter
1
12 ML-7 Series/ML-9001A
Chapter 1Safety Precautions
For other information on managing laser equipment or the MPE level, refer to the
following standards.
ML-7111A-1-00-05, ML-9001A-1-00-05, and ML-7112AH
･IEC60825-1 "Safety of laser products Part1: Equipment Classifications,
requirements and use's guide"
ML-7064A, models other than ML-7111A-1-00-05 and ML-9001A-1-00-05
･JIS C 6802 "Safety of laser products"
･Ministry of Health, Labour and Welfare Notification No. 0325002 "Prevention
measures against laser injuries" (in Japanese)
■Precautions for units equipped with a chiller (ML-7064A)
･Water circulates inside the Head Unit to cool it. If the room temperature falls below 0
°C over a long period when the marker is not used, the coolant will freeze and
expand. This poses a risk of serious damage as a result, including rupture of the
cooling system hoses and damage to the water-soaking Oscillation Unit formed by
the laser rod and LD elements.
･Thus, during winter or if there is a risk of freezing, start the chiller alone from the
computer so that water circulates through it.
･If the marker will not be used for more than a week, always drain the water from the
Head Unit and Chiller Unit. For details, refer to the Installation and Maintenance
manual.
･Before transport or storage, always drain the water from the Head Unit and Chiller
Unit. For details, refer to the Installation and Maintenance manual (this manual).

Chapter
1
13
ML-7 Series/ML-9001A
1.4 For Disposal
This product incorporates parts containing gallium arsenide (GaAs). At the time of disposal, separate it
from general industrial waste or domestic waste and carry out the disposal in accordance with
applicable laws and regulations.
1.4 For Disposal

Chapter
1
14 ML-7 Series/ML-9001A
Chapter 1Safety Precautions
The following labels are applied to the marker. Read and follow the instructions on the labels to ensure
correct use.
■ML-7111A
■ML-7112AH
1.5 Warning/Explanation Labels for Safety
VISIBLE AND/OR INVISIBLE
AVOID EYE OR SKIN EXPOSURE TO
CLASS 4 LASER PRODUCT
50W 1064nm10ns
SEMI CONDUCTOR LASER5mW 645nmCW
DIRECT OR SCATTERED RADIATION
LASER RADIATION
CAUTION
LASER RADIATION WHEN OPEN
AND INTERLOCKS DEFEATED
AVOID EYE OR SKIN EXPOSURE TO
DIRECT OR SCATTERED RADIATION
LASER APERTURE
Nd: YVO 4 LASER
WARNING DON’ T REMOVE A FIBER
WHEN THE EQUIPMENT
POWER SUPPLY IS ON.
EMITTED FROM THIS APERTURE
CAUTION : LASER RADIATION IS
CAUTION
VISIBLE AND/OR INVISIBLE LASER RADIATION WHEN
OPEN AND INTERLOCKS DEFEATED AVOID EYE OR SKIN
EXPOSURE TO DIRECT OR SCATTERED RADIATION
AVOID EYE OR SKIN EXPOSURE TO DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
VISIBLE AND/OR INVISIBLE LASER RADIATION
/ MAX : 50W : 5mW
/ MEDIUM : Nd:YVO4 :
/ PULSE WIDTH : / CW, QSW PULSE : / CW
/ WAVE LENGTH : 1.06 m
: 0.65 m
LASER APERTURE

Chapter
1
15
ML-7 Series/ML-9001A
1.5 Warning/Explanation Labels for Safety
■ML-9001A
■ML-7064A
CAUTION
VISIBLE AND/OR INVISIBLE LASER RADIATION
AVOID EYE OR SKIN EXPOSURE TO DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
ND: YVO
4 LASER
MAX: 50W
532nm
CW, Q-SW PULSE
LASER RADIATION WHEN OPEN
AND INTERLOCKS DEFEATED
AVOID EYE OR SKIN EXPOSEURE TO
DIRECT OR SCATTERED RADIATION
LASER APERTURE
LASER APERTURE
CAUTION: LASER RADIATION IS
EMITTED FROM THIS APERTURE
VISIBLE AND/OR INVISIBLE LASER RADIATION
AVOID EYE OR SKIN EXPOSURE TO DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
MAX: 150kW
Nd: YAG LASER
CW, Q-SW PULSE
1.06
µm
MAX: 2.5mW
SEMI CONDUCTOR LASER
CW
645nm
LASER RADIATION WHEN OPEN
CAUTION
AND INTERLOCKS DEFEATED
AVOID EYE OR SKIN EXPOSURE TO
DIRECT OR SCATTERED RADIATION

Chapter
1
16 ML-7 Series/ML-9001A
Chapter 1Safety Precautions
●Turning the pumping diode on and off frequently will shorten its useful life.
Do not use the Emergency Stop switch to stop the unit unless it is an emergency. Use regular
methods.
●The useful life of pumping diodes is such that over time their output declines.
When the laser output declines from its initial level, increase the current. The current can be
increased to the following maximum levels.
Refer to the Operating Unit manual for details:
ML-7111A and ML-9001A 48A
ML-7112AH 45A
ML-7064A 32A
●Increasing the current limit from the factory-set value during initial use will shorten the useful life of
the pumping diode.
1.6 LD (Diode Laser) Precautions