Amada MM-L400A User manual

OM1215388
MM-L400A-E02-202307
LASER WELD MONITOR
MM-L400A
OPERATION MANUAL

MM-L400A
Contents
1
Thank you for your purchase our product.
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) Container ............................................................................................................................ 3-1
(2) Checking the Contents of Container .................................................................................. 3-1
(1) Products .......................................................................................................................................... 3-1
(2) Accessories ..................................................................................................................................... 3-1
(3) Selective required options................................................................................................................ 3-2
(4) Options ............................................................................................................................................ 3-2
4. Name and Function of Each Part ........................................................................................... 4-1
(1) Front.................................................................................................................................... 4-1
(2) Rear .................................................................................................................................... 4-2
(3) Optical Fiber Unit................................................................................................................ 4-3
5. Connecting Equipment ........................................................................................................... 5-1
(1) Typical Equipment Connection .......................................................................................... 5-1
(2) Startup, Shutdown, and Power Off .................................................................................... 5-2
(3) Transportation and Installation........................................................................................... 5-3
(4) Mounting 19” Rack ............................................................................................................. 5-4
(5) Removing/Mounting Handles ............................................................................................. 5-7
(6) Mounting Ferrite Clamp...................................................................................................... 5-9
(7) Sticking Laser Aperture Label .......................................................................................... 5-10
(8) Coaxially Mounting Adapter (MM-L400A) ........................................................................ 5-11
(9) Mounting External Light-Receiving Unit and Measures against Reflected Light ............ 5-13
(10) Removing/Mounting Light Attenuation Filter Unit ............................................................ 5-14
6. Interface .................................................................................................................................... 6-1
(1) Inputs/Outputs .................................................................................................................... 6-1
(2) Connectors ......................................................................................................................... 6-2
(3) Example Connections of External Input/Output Signals.................................................... 6-7
(4) Timing Chart .....................................................................................................................6-10
7. Maintenance ............................................................................................................................. 7-1
(1) Troubleshooting.................................................................................................................. 7-1
(2) Cleaning/Replacing Protective Glass................................................................................. 7-5
(3) Replacing Fuse................................................................................................................... 7-7
(4) About MM-L400A................................................................................................................ 7-8
8. Sensitivity Check, Readjustment........................................................................................... 8-1
9. Specifications........................................................................................................................... 9-1
10. Outline Drawing ..................................................................................................................... 10-1
(1) MM-L400A Laser Weld Monitor ....................................................................................... 10-1
(2) Coaxially Mounting Adapter (MM-L400A) (Optional)....................................................... 10-2
(3) External Light-Receiving Unit (Optional).......................................................................... 10-3
License.................................................................................................................................... 11-1

MM-L400A
1. Special Notes
1-1
1. Special Notes
(1) Safety Precautions
Before using the equipment, 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. It may also cause property
damage.
These signs represent “DON’Ts.” 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.
WARNING
CAUTION
DANGER

MM-L400A
1. Special Notes
1-2
DO NOT touch anything inside the equipment.
High voltage is present internally. Do not touch anything inside the equipment
with the power on.
NEVER ATTEMPT to disassemble, repair or modify the equipment.
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
equipment.
This product incorporates parts containing arsenide (As).
ALWAYS wear protective goggles.
Always wear protective goggles where the equipment 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 equipment.
If not grounded, the equipment may cause an electric shock in the event of
malfunction or ground fault.
STAY AWAY from the equipment 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-L400A
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 equipment on a firm surface.
Injury or equipment damage/malfunction may result if equipment topples over
or falls from the installed location.
DO NOT place any drinks, etc. on the equipment.
Any liquid split onto the equipment may cause insulation failure, resulting in
ground fault or fire.
DO NOT place flammable objects near the equipment.
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 equipment with a blanket or cloth.
During operation, do not cover the equipment with a blanket or cloth. This may
lead to the equipment overheating and catching fire.
DO NOT use the equipment for applications other than metal working.
Using it otherwise may result in an electric shock or fire.
DO NOT use with the equipment 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 equipment.
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-L400A
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-L400A, install in a location with an ambient temperature range of 5 to
40ºC, ambient humidity of 85% RH or less and free from abrupt temperature changes.
Further, avoid the following locations.
•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 equipment.
■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
Fiber unit 100 mm
■When an administrator or an operator enters an area containing a laser radiation hazard,
safety measures to ensure compliance with MPE*limits are required.
*MPE: Maximum Permissible Exposure of the laser radiation limit permissible for human
eye and skin exposure.
* For more information about laser radiation regulations and MPE values, see the standard
referenced below.
Japanese Industrial Standard JIS C 6802 “Safety of laser products”
Notification from Ministry of Health, Labor and Welfare No. 0325002 “Prevention
measures plan concerning laser hazards”

MM-L400A
1. Special Notes
1-5
(3) Disposal
The MM-L400A incorporate parts containing arsenide (As).
Dust or vapor of gallium arsenide (GaAs) is harmful; handle the product with care.
・At the time of disposal, the below process is recommended:
1. The disposal work shall be subcontracted to a waste disposal specialist who is
qualified for collection, transportation, and disposal of industrial waste that includes
materials containing arsenic.
2. This material shall be separated from general industrial waste or domestic waste, and
controlled through to its final stage as specially-controlled industrial waste.
・No combustion, cutting, crushing of the product. Avoid chemical decomposition.
(4) Sticking Warning/Danger Labels
Warning/danger labels are struck on the product. Read the precautions provided on each
label for correct use.
•MM-L400A (Front)
•MM-L400A (Rear)
(1)
(2)
(3)
(1)
(2)
(3)

MM-L400A
1. Special Notes
1-6
•MM-L400A Accessories
Tearing off the seal will void the warranty.
The product has a Laser Aperture warning label included.
Attach this label to the product or place it near to where the Fiber Unit is connected.
For details, see 5 (3) “Attaching the Laser Aperture Warning label.”
(1)
(2)
(3)

MM-L400A
1. Special Notes
1-7
•Co-axial mounting adapter (MM-L400A)
•External light-receiving unit
(4)
Tearing off the seal will void the warranty.
(5)
(5)
(4)

MM-L400A
2. Features
2-1
2. Features
The Laser Weld Monitor MM-L400A detects the light generated from the processing
point and monitors the welding status. The MM-L400A offers the following features:
●At laser welding, the welding status can be monitored by detecting the light generated
from the processing point.
●Transmits the light generated from the processing point to the incorporated sensor for
measurement using optical fibers.
●Setting conditions and displaying waveforms can be easily done with MS-Viewer, 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 light generated from the processing point
can be displayed on the PC screen.
●The MM-L400A allows external devices to be connected including an output unit
and galvanometer scanner. Also, the output unit (output unit model series fitted with
a CCD camera)*1 can be used by mounting coaxially with an optional adapter.
●A power supply in the range of 100 V AC to 240 V AC can be used.
●Turning on the guide light*2 enables confirmation of the measurement position.
NOTE:
The MM-L400A is equipment to monitor the light generated 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.
*1: Coaxial mounting is available only for selected output unit products. For details,
contact us.
*2: The guide light of the MM-L400A is Class 3R of JIS C 6802 “Safety standards for
laser products.”

MM-L400A
3. Unpacking
3-1
3. Unpacking
(1) Container
•At least two persons are required to remove the MM-L400A from its packing
container.
Dimensions Mass
(including contents)
Remarks
Approx. 315 (H) x 1120 (W) x 621 (D) mm Approx. 35 kg Common to the
MM-L400A
(2) Checking the Contents of Container
Check the contents of container. If you find any defect, contact us.
(1) Products
Product name Model Qty
Laser weld monitor MM-L400A-00-00 1
MM-L400A-00-01
(2) Accessories
Product name Model Qty
PC software: MS-Viewer AS1215744 1
LAN cable category 7, 5 m LD-TWST/BM50 1
Ferrite clamp*1 NFT-8 2
Laser aperture warning label LB1201367 1
D-Sub 9 pin plug HDEB-9P(05) 1
D-Sub 15 pin plug HDAB-15P(05) 1
D-Sub 25 pin plug HDBB-25P(05) 1
D-Sub 50 pin plug DF02P050F22A1 1
Circular push-pull connector HR10A-7P-4P(73) 1
CAUTION

MM-L400A
3. Unpacking
3-2
(3) Selective required options
Product name Model Qty
For external
light receiving
External light-receiving unit LP1214900 1*2
For output unit Coaxially mounting adapter
(MM-L400A)*3
LP1214881 1*2
Coaxially mounting adapter
(MM-L400A) (SET)*3, 4
LP1215369
Transmission
fiber
Fiber unit 5m LP1215333 1*2
10m LP1215334
20m LP1215335
Common Power cord 250 V for use in
Japan or China
KP244
VCTF3×1.25 KS16D 3m
1*2
250 V for use in
Europe
CEE3P-W-1.8
125 V max. KP-35 KS-16A SVT#18x3
B-TYPE
(4) Options
Product name Model Qty
Optical filter Optical attenuation filter unit*5AS1213648 1*2
*1 Used for LAN cable. For mounting, see 5. (6) Mounting the Ferrite Clamp.
*2 Depends on the customer’s selection.
*3 Used when installing the MM-L400A camera coaxially with the output unit with the
CCD camera. Our engineer takes charge of mounting work.
*4 When the coaxially mounting adapter (MM-L400A) is shipped with being mounted on
our output unit, the model number is changed into LP1215369. The shipping form is
different, but there is no difference between LP1214881 and LP1215369 in
performance.
*5 Mainly used to attenuate excessive light intensity emitted from the processing point.
*6 PC is necessary to configure the settings of the MM-L400A. A PC can be also
prepared by the customers. For the PC specifications, refer to the Application Manual
of the MS-Viewer.

MM-L400A
4. Name and Function of Each Part
4-1
4. Name and Function of Each Part
(1) Front
(1) Display panel:
Shows the status of the MM-L400A.
(2) Status indicating LEDs:
Indicate the current status of the MM-L400A. All of the LEDs turn on soon after startup,
and as the startup process continues, each LED flashes and turns off in sequence from the
right. After startup completes, the LEDs operate as follows:
POWER:
Lit in green when the power supply is turned on. Flashes during the shutdown process.
MEASURE:
Lit in orange from the measurement start to the end. There are two ways to start
measurement; the internal trigger by monitor signal level and the external trigger of
external input.
ERROR:
Lit in red when a device error occurs. Flashes at the warning status.
READY:
Lit in green when the preparation for measurement is completed and no device error
occurs.
CONNECT:
Lit in green during the measurement data transmission between the equipment and the
PC.
SERVER CONNECT
Lit in green when the equipment and the PC (database server) are online.
IP RESET
Lit in green when the switch on the right is pressed to reset the IP address to the factory
status (192.168.1.40). This resetting operation is invalid during measurement. To press the
switch, use a sharp-pointed tool.
(3) Controller Power Switch
Used to turn on/off the power. To turn off the power, press the switch for 0.5 seconds or
more.
(2)
(3)
(1)

MM-L400A
4. Name and Function of Each Part
4-2
(2) Rear
(1) Power switch:
Turns on/off the power. When turning off the power switch, be sure to confirm that the
controller power is off (POWER of the status indicating LEDs at the front).
(2) AC INPUT
Used to connect the attached power cord to supply power.
(3) +24V OUT
Outputs 24V to the external device.
(4) EExt.I/O(2)
Do not connect anything to this port.
(5) USB
Do not connect anything to this port.
(6) Ext.I/O
Connector for input and output with the external device.
(7) LAN
Used to connect to the personal computer with the attached LAN cable.
(8) EExt.I/O (1)
Do not connect anything to this port.
(9) ANALOG INPUT
Connector for input from the external device.
(10) ANALOG OUT
Outputs the MM-L400A detection with the analog signal. It can be observed with an
oscilloscope, etc.
(1)
(5)
(6)
(3)
(7)
(9)
(10)
(2)
(4)
(8)

MM-L400A
4. Name and Function of Each Part
4-3
(3) Optical Fiber Unit
End of corrugated tube
(1) Corrugated tube:
Used to protect the optical fibers.
(2) Fiber unit ch1:
The fiber unit connected from ch1 to ch3 of the sensor in the MM-L400A controller.
(3) Fiber unit ch2:
The fiber unit connected from ch5 to ch7 of the sensor in the MM-L400A controller. When
the unit is configured with only a single channel, this part is hollow.
(4) Empty conduits
These conduits are empty.
(1)
(3)
(2)
(4)

MM-L400A
5. Connecting Equipment
5-1
5. Connecting Equipment
(1) Typical Equipment Connection
The typical equipment connection of the MM-L400A is shown below.
The MM-L400A monitors the light generated from the processing point by mounting the
coaxial mounting adapter (MM-L400A) coaxially with the output unit, or by mounting the
external light-receiving unit.
(1) MM-L400A:
Judges the upper/lower limit for obtaining waveforms, records measured data, etc.
(2) Coaxial mounting adapter (MM-L400A)/External light-receiving unit
Receives light necessary for the measurement from the processing point.
(3) Personal computer (option):
With MS-Viewer installed, sets conditions of the MM-L400A, displays waveforms and
saves the waveform data, etc. For installation, refer to the Application Manual of the MS-
Viewer.
(4) Laser device (separately available):
Oscillates the laser light.
Be sure to read the operation manual for the laser device.
(5) Output unit (separately available):
Condenses laser light and performs processing and welding. For the use with MM-
L400A, mount either the external light-receiving unit (to be externally mounted) or the
coaxial mounting adapter (MM-L400A) (to be coaxially mounted).
光ファイバ
Laser device
(4)
Coaxial mounting
adapter
(MM-L400A)
Fiber unit
Optical
unit
or
(5)
MM-L400A
③
(2)
(2)
External
light-receiving unit
LAN cable
(1)
Personal computer (option)
Optical fiber

MM-L400A
5. Connecting Equipment
5-2
(2) Startup, Shutdown, and Power Off
This section describes the process from startup, shutdown, and power off of the
MM-L400A and the equipment.
•When the MM-L400A is not properly shut down, it can damage the
parameter data in the equipment or result in malfunction.
Startup
1) To start up the MM-L400A, turn on the AC power switch on the rear panel.
2) Push the controller power switch on the MM-L400A front panel. Startup operation
starts, and the status indicating LEDs turn on in order. After the startup operation, the
POWER LED turns on.
Shutdown, Power off
1) To shut down the MM-L400A, push the controller power switch for 0.5 seconds or
more. During the shutdown operation, the POWER LED of the status indicating LEDs
flashes. After the shutdown operation, the POWER LED turns off.
2) Confirm that the MM-L400A status indicator LEDs are off, and then turn off the AC
power switch on the rear panel.
AC power switch
Controller power switch
Status indicating LEDs
Push the switch for 0.5 seconds or more
During Shutdown: POWER LED flashes
After Shutdown: POWER LED turns off
AC power switch
CAUTION

MM-L400A
5. Connecting Equipment
5-3
(3) Transportation and Installation
This section describes precautions for transportation and installation of the MM-L400A.
•Before starting the operation, be sure to turn off the power of the
MM-L400A.
•During the operation, avoid excessive force applied to the optical fibers.
•Perform install or transport operations always by two or more persons.
To transport or install the MM-L400A, hold the parts at the both sides of the equipment as shown
below.
CAUTION
Hold here

MM-L400A
5. Connecting Equipment
5-4
(4) Mounting 19” Rack
This section describes how to mount the MM-L400A to a 19” rack.
•Before starting the operation, be sure to turn off the power of the
MM-L400A.
•During the operation, avoid excessive force applied to the optical fibers.
•Be sure to use only the specified screws. Otherwise, it may damage the
product.
To mount the MM-L400A to a commercially-available 19” rack, the parts on the bottom
need to be removed. The required specifications for a 19” rack are as follows:
・Size: 2U, Depth: 700 mm or more
・Equipped with a top panel supporting the MM-L400A (maximum weight of approx.
22 g)
・Equipped with a screw hole securing the front
1) Place the lower pad in the package box of the MM-L400A on a stable base such as a
table, and then place the MM-L400A on the lower pad.
CAUTION

MM-L400A
5. Connecting Equipment
5-5
2) Remove the target M4 screws (six positions) by using a tool. This enables to remove
the part on the bottom from the MM-L400A.
3) Take out the MM-L400A from the lower pad. At this time, confirm that the bottom
part is separated from the MM-L400A and remained on the lower pad.
4)Store the MM-L400A into the 19” rack by pushing from the front. At this time, pay
attention not to apply forces to the optical fibers.