Amada MM-L300A User manual

AA04OM1193911-18
OPERATION MANUAL
Original instructions
LASER WELD MONITOR
MM-L300A

MM-L300A
1
Thank you for your purchase of our MM-L300A Laser Weld Monitor.
Please read this manual carefully to ensure correct use. Keep the manual handy after
reading for future reference.
Contents
1. Special Notes ................................................................................................................. 1-1
(1) Safety Precautions...........................................................................................................1-1
(2) Handling Precautions .......................................................................................................1-4
(3) Disposal ...........................................................................................................................1-5
(4) Sticking Warning/Danger Labels......................................................................................1-5
2. Features.......................................................................................................................... 2-1
3. Unpacking ...................................................................................................................... 3-1
(1) About Container ...............................................................................................................3-1
(2) Checking the Contents of Container ................................................................................3-1
4. Name and Function of Each Part ................................................................................. 4-1
(1) Front.................................................................................................................................4-1
(2) Rear .................................................................................................................................4-2
5. Connecting Equipment ................................................................................................. 5-1
(1) Configuration during Use .................................................................................................5-1
(2) Connecting the MM-L300A and the SU-N300A/SG-N300A .............................................5-3
(3) Mounting the Noise Filter .................................................................................................5-4
(4) Mounting the Filter for SU-N300A ....................................................................................5-5
(5) Coaxially Mounting Adapter .............................................................................................5-6
(6) Externally Mounting the SU-N300A and Measures against the Reflected Light...............5-9
(7) Externally Mounting the SG-N300A ...............................................................................5-10
(8) Using by the Mounting Plate for SG-N300A...................................................................5-12
(9) Measures against the Reflected Light to the SG-N300A................................................5-14
(10) Using the External Trigger Unit ......................................................................................5-16
(11) Using the GWM External Trigger Input Cable ................................................................5-24
6. How to Operate the PC Software.................................................................................. 6-1
(1) Setup................................................................................................................................6-1
(2) Starting the Application ....................................................................................................6-7
(3) Menu Window ..................................................................................................................6-8
(4) Acquire Wave Data Window ..........................................................................................6-10
(5) Condition Select Window ...............................................................................................6-13
(6) Condition Configuration Window....................................................................................6-15
(7) Basis Waveform Calculation Window.............................................................................6-19
(8) Integral Configuration Window .......................................................................................6-34
(9) Parameter Setting Window ............................................................................................6-38

MM-L300A
2
(10) Maintenance Window.....................................................................................................6-42
(11) External Device Communication ....................................................................................6-51
(12) Setting Parameters List..................................................................................................6-64
7. Basic Operation ............................................................................................................. 7-1
(1) Setting Conditions............................................................................................................7-1
(2) Obtaining Waveforms......................................................................................................7-10
(3) Setting Quality Judgments...............................................................................................7-12
8. Measurement Data......................................................................................................... 8-1
(1) Storing Data .....................................................................................................................8-1
(2) Conditions for Obtaining Waveform .................................................................................8-2
9. Interface.......................................................................................................................... 9-1
(1) Inputs/Outputs..................................................................................................................9-1
(2) Connectors.......................................................................................................................9-2
(3) Example Connections of External Input/Output Signals...................................................9-7
(4) Timing Chart ..................................................................................................................9-11
10. JSON ............................................................................................................................. 10-1
(1) Connection.....................................................................................................................10-1
(2) JSON Object ..................................................................................................................10-1
11. EtherNet/IP ................................................................................................................... 11-1
(1) Function Overview .........................................................................................................11-1
(2) Network Connection.......................................................................................................11-2
(3) Explicit Message ............................................................................................................11-5
(4) Implicit Message ............................................................................................................11-8
(5) LED Status Indication.....................................................................................................11-9
(6) Specifications...............................................................................................................11-10
12. Maintenance ................................................................................................................. 12-1
(1) Troubleshooting .............................................................................................................12-1
(2) Cleaning/Replacing the Protective Glass .......................................................................12-7
(3) Replacing the Battery...................................................................................................12-10
(4) Replacing the Fuse ......................................................................................................12-12
(5) About the SU-N300A/SG-N300A .................................................................................12-13
13. Specifications .............................................................................................................. 13-1
14. Outline Drawing ........................................................................................................... 14-4
(1) MM-L300A .....................................................................................................................14-4
(2) SU-N300A......................................................................................................................14-5
(3) Coaxially Mounting Adapter Incorporated with the SU-N300A (Option).........................14-6
(4) SG-N300A......................................................................................................................14-7
(5) Mounting Plate for SG-N300A (Option)........................................................................14-10
(6) SUS Pipe Fixing Unit (Option)......................................................................................14-11
EU Declaration of Conformity

MM-L300A
1. Special Notes
1-1
1. Special Notes
(1) Safety Precautions
Before using the instrument, please read through the Safety Precautions carefully to
ensure proper use.
The precautions listed here are designed to ensure safe use and proactively prevent
risks and damage to the user and other people. All precautions are critical for safety.
Please read them all.
The hazard signs have the following meanings:
Mishandling will cause imminent risk of death or
serious injury.
Mishandling may cause risk of death or serious
injury.
Mishandling may cause risk of injury and physical
damage.
These signs represent “DONTs.” They warn of
actions not covered by the product warranty.
The concrete contents of prohibition are shown in
illustrated form or in writing inside or near the
symbol.
These signs represent “DOs" which must be
observed by the product user.
The concrete contents of instructions are shown in
illustrated form or in writing inside or near the
symbol.
A sign within a triangular border indicates that a
hazard (danger, warning or caution) is present.
The concrete contents of instructions are shown in
illustrated form or in writing inside or near the
symbol.
DANGER
！
WARNING
！
CAUTION
！

MM-L300A
1. Special Notes
1-2
DO NOT touch anything inside the instrument.
High voltage is present internally. Do not touch anything inside the instrument
with the power on.
NEVER ATTEMPT to disassemble, repair or modify the instrument.
Failure to observe this will result in an electric shock or fire.
Do not perform maintenance other than that detailed in the Operation Manual.
DO NOT look directly at the beam, and do not allow any part of the
body to enter the beam.
Both direct and scattered beams are hazardous.
Direct eye exposure to a laser beam will cause blindness.
NEVER burn, destroy, cut, crush or chemically decompose the
instrument.
This product incorporates parts containing arsenide (As).
ALWAYS wear protective goggles.
Always wear protective goggles where the instrument is used.
Even if you wear them, you may lose your sight if the laser beam enters your
eyes directly through protective goggles. Protective goggles attenuates the
laser beam, but does not block it.
AVOID skin exposure to a processing or welding laser beam.
This product monitors the near-infrared light from the processing point.
Exposure to a laser beam will cause burns. Never expose any part of the body
to a laser.
DO NOT touch the workpiece during or immediately after laser
working.
The workpiece may be extremely hot.
USE the specified cables and connect them securely.
Using cables with an insufficient capacity or improper connection may result in a
fire or electric shock.
KEEP the power and connection cables free of damage.
Do not walk on, twist, or tug the cables.
Damaged cable may result in an electric shock, short circuit, or fire.
For repair or replacement, contact your dealer or us.
In the event of an anomaly, STOP the operation.
Continuing the operation with anomalies such as a generation of fumes, a
burning odor, strange noise, or overheating unattended may result in an electric
shock or fire. In the event of the above or other anomaly, immediately contact
your dealer or us.
GROUND the instrument.
If not grounded, the instrument may cause an electric shock in the event of
malfunction or ground fault.
STAY AWAY from the instrument if you have a pacemaker.
If you have a pacemaker, do not approach a welding machine in operation or
the immediate area unless your doctor has given consent.
Welding machines generate a magnetic field which interferes with the operation
of a pacemaker.
DANGER
WARNING

MM-L300A
1. Special Notes
1-3
DO NOT splash water.
Electrical parts may cause an electric shock or short circuit if they become wet.
USE proper tools (e.g., wire stripper, pressure wire connectors) for
termination of connection cables.
Failure to do so may damage the internal wires, leading to possibility of fire and
electric shock.
PLACE the instrument on a firm surface.
Injury or instrument damage/malfunction may result if instrument topples over or
falls from the installed location.
DO NOT place any drinks, etc. on the instrument.
Any liquid split onto the instrument may cause insulation failure, resulting in
ground fault or fire.
DO NOT place flammable objects near the instrument.
Surface flash and expulsion (spatter) generated during welding may ignite
flammable objects, resulting in a fire.
If work involves use of flammable items, place a non-flammable cover on such
items.
DO NOT cover the instrument with a blanket or cloth.
During operation, do not cover the instrument with a blanket or cloth.
This may lead to the instrument overheating and catching fire.
DO NOT use the instrument for applications other than metal working.
Using it otherwise may result in an electric shock or fire.
DO NOT use with the instrument other than the YAG or fiber laser
equipment which oscillates a waveform of 1.0 μm band.
Using it otherwise may result in malfunction to the instrument.
ALWAYS wear appropriate work clothing.
Wear protective gear such as gloves, a long-sleeved top and leather apron.
Surface flash and expulsion (spatter) can cause burns if it contacts the skin.
PROVIDE fire extinguishers.
Provide fire extinguishers at the welding site as a precautionary measure.
PERFORM maintenance and inspection on a regular basis.
Perform maintenance and inspection regularly.
For repair or replacement, contact your dealer or us.
CAUTION

MM-L300A
1. Special Notes
1-4
(2) Handling Precautions
Designate a person with sufficient knowledge and experience in handling laser
beams and laser equipment as a laser safety administrator.
The laser safety administrator must take charge of the control keyswitch for the laser
device. Further, the administrator must share safety knowledge with laser workers
and take command of the work.
Partition all areas that may be exposed to laser beams with a fence or other
means.
Further, the administrator must take charge of such areas, and post a sign in a
clearly visible manner to keep them off limits for unauthorized personnel.
Place the product on a firm surface, and keep it level with the ground when in
use.
Using it in a tilted position may result in malfunction.
For the MM-L300A, install in a location with an ambient temperature range of
0 to 40C, ambient humidity of 85% RH or less and free from abrupt
temperature changes. Further, avoid the following locations. (For the
SU-N300A/SG-N300A, an ambient temperature range is 5 to 50C and the
protection class is IP64.):
Dirty or dusty location or location with oil mist present
Location often exposed to vibration or shock
Location where chemical substances, etc. are handled
Location near a high noise generating source
Location where condensation occurs
Perform warming-up operation for at least 10 minutes after turning on the
power supply.
When the ambient temperature is low, it is recommended that the time is increased.
Keep the exterior clean with a soft cloth or cloth lightly dampened with water.
For stains, clean them off using a diluted neutral detergent or alcohol. Do not use
thinner or benzene as they may cause discoloration or deformation.
To prevent malfunction, do not allow any foreign objects such as screws or
coins to enter the instrument.
Operate the switches and buttons with care.
Rough operation or the use of a tool or pen tip may result in damage or malfunction.
Subjecting cables to strong impact may damage it.
Further, mount them securely until the connector is locked.
To prevent malfunction, be sure to turn off the power supply in advance when
installing and removing cables that are connected on the rear side of the
product.
To prevent damage, do not bend the optical fiber beyond its minimum bending
radius or apply any forms of shock to it
Type Minimum bending radius
SG-N300A sensor fiber 60 mm
Reflected light transmission fiber, φ400 μm 100 mm
* For more information about laser control, refer to the laser device operation manual.

MM-L300A
1. Special Notes
1-5
(3) Disposal
The SU-N300A/SG-N300A and the external trigger unit incorporate parts
containing arsenide (As). 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.
Lithium batteries contain hazardous substances. At the time of disposal, observe the
local laws and regulations.
(4) Sticking Warning/Danger Labels
Warning/danger labels are struck on the product. Read the precautions provided on
each label for correct use.
MM-L300A
(1) (2)
(1)
(2)
Do not open the cover except
when replacing the battery.

MM-L300A
1. Special Notes
1-6
SU-N300A/SG-N300A
Tearing off the seal will
void the warranty.
(3)
(3)
(3)

MM-L300A
2. Features
2-1
2. Features
The Laser Weld Monitor MM-L300A detects the near-infrared light generated from the
processing point using a dedicated sensor unit SU-N300A/SG-N300A, thus monitoring the
welding status. The MM-L300A offers the following features:
At laser welding, the welding status can be monitored by detecting the near-infrared light
generated from the processing point.
Setting conditions and displaying waveforms can be easily done with the dedicated
software.
Produces an alarm signal output upon detection of an output waveform outside the
tolerance range by setting upper and lower tolerance widths for the output waveform. Also,
the output waveform which detects the near-infrared light can be displayed on the PC
screen.
The SU-N300A can be used by being mounted coaxially with the output unit (output unit
series with the CCD camera) or externally.
The SG-N300A can be used with the laser scanning optical system such as galvanometer
scanner.
A power supply in the range of 90 V AC to 250 V AC can be used.
NOTE:
The MM-L300A is equipment to monitor the near-infrared light from the processing point but
not equipment to directly judge whether the laser welding status is good or bad.
The customer should optionally use a judging function considering the relation between the
laser processing quality and the monitored output waveform.