Raycus RFL-A1500D User manual

Fiber Delivered Direct Diode
Lasers User Guide
RFL-A1500D
Wuhan Raycus Fiber Laser Technologies Co., Ltd

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
Fiber Delivered Direct Diode Laser User Guide 1500W
1
TABLE OF CONTENTS
1 Safety Information....................................................................................................................... 2
1.1 Symbols Used in this User Guide.......................................................................................2
1.2 Laser Classification.............................................................................................................2
1.3 Safety Labels...................................................................................................................... 3
1.4 Optical Safety.....................................................................................................................4
1.5 Electrical Safety..................................................................................................................5
1.6 Other Safety Rules............................................................................................................. 5
2 Product Description..................................................................................................................... 6
2.1 Features............................................................................................................................. 6
2.2 Model Configuration..........................................................................................................6
2.3 Package Contents.............................................................................................................. 7
2.4 Unpacking and Inspection................................................................................................. 7
2.5 Operation Environment.....................................................................................................8
2.6 Precautions for Use........................................................................................................... 8
2.7 Specifications..................................................................................................................... 9
3 Installation..................................................................................................................................12
3.1 Dimensions...................................................................................................................... 12
3.2 Output interface model...................................................................................................13
3.3 Cooling Requirements..................................................................................................... 13
3.4 Installation Procedure..................................................................................................... 15
4 Using the Product.......................................................................................................................17
4.1 Front Panel.......................................................................................................................17
4.2 Rear Panel........................................................................................................................18
4.3 Power Connection........................................................................................................... 19
4.4 Interface Definitions........................................................................................................ 20
4.5 Control Modes................................................................................................................. 25
4.6 Entering a Control Mode................................................................................................. 25
4.7 Hyper Terminal Mode......................................................................................................26
4.8 RS-232 Mode................................................................................................................... 32
4.9 AD Mode..........................................................................................................................35
4.10 The control of pilot laser............................................................................................... 36
5 Common errors.......................................................................................................................... 37
6 Warranty, Return and Maintenance......................................................................................... 38
6.1 General Warranty............................................................................................................ 38
6.2 Limitations of Warranty...................................................................................................39
6.3 Service and Repair........................................................................................................... 39

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
Fiber Delivered Direct Diode Laser User Guide 1500W
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1 Safety Information
Thank you for choosing Raycus Fiber Delivered Direct Diode laser. This User Guide provides
important safety, operation, warranty and other information. Please read it carefully before
you use this product. In order to ensure safe operation and optimal performance of the product,
please follow the warnings, cautions, operating procedures and other instructions accordingly.
1.1 Symbols Used in this User Guide
WARNING: Describes a hazard that lead to a personal injury or death.
CAUTION: Describes a hazard that lead to a minor personal injury or
product damage.
1.2 Laser Classification
This series of lasers are classified as a high power Class 4 laser instrument according to the
European Community standards EN 60825-1, clause 9. This product emits invisible laser
radiation at or around a wavelength of 9xx nm, and the total light power radiated from the
optical output is greater than 1500W. Direct or indirect exposure of this level of light intensity
may cause damage to the eye or skin. Despite the radiation being invisible, the beam may cause
irreversible damage to the retina and/or cornea. Appropriate and approved laser safety
eyewear must be worn all the time while the laser is operational.

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WARNING: You must use appropriate laser safety eyewear when
operating this device. The laser safety eyewear is selected according to
the range of wavelengths emitted from this product. The end user
must ensure that the laser safety eyewear used protects against light
emitted by the device over its entire range of wavelengths. Please
check the safety labeling on the product (Figure 1) and verify that the
personal protective equipment (e.g. enclosures, viewing windows or
viewports, eyewear, etc.) being utilized is adequate for the output
power and wavelength ranges listed on the product.
1.3 Safety Labels
Figure 1: Safety Label Locations

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Figure 1 shows safety labels and their locations. These include warning labels, apertures
through which laser radiation is emitted and labels of certification and identification, etc.
Specifications of these labels are as follows:
Table 1: Specifications of Safety Labels
1.Aperture Label
2.Class 4 Laser Product
3.Class 2M Laser Product
Label for Guide Laser
4. CE Compliance
5. Identification Plate
6.Laser Radiation Hazard
7.Electrical Hazard
1.4 Optical Safety
Any dust on the end of the collimator assembly can burn the lens and damage the laser.
CAUTION: If the output of the device is delivered through a lens with
an anti-reflection coating, make sure that the lens is of good quality
and clean.

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CAUTION: DO NOT emit when the protective cap is not removed, or
the laser will be damaged.
1.5 Electrical Safety
(1) Make sure your product is grounded through the PE line of the AC power cord. The
grounding must be firm and reliable.
WARNING: Any interruption from the protective earth will electrify the
enclosure, which may result in personal injury.
(2) Make sure that the correct voltage of the AC power source is used.
CAUTION: Failure to connect the laser to the correct voltage could
damage the product.
(3) There are no operator serviceable parts inside, so do not try to remove covers, or electrical
shock may be caused, and warranty will be void.
1.6 Other Safety Rules
(1) Never look into the laser output port when power is supplied to the laser.
(2) Avoid using the laser in a dim or darkened environment.
(3) If this device is used in a manner not specified in this document, the protection provided by
the device may be impaired and the warranty will be voided.
(4) Do not remove the covers of the laser, or the warranty will be void. All maintenance must
be performed in Raycus or by qualified Raycus personnel.

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2 Product Description
2.1 Features
Your Raycus Fiber Delivered Direct Diode laser is designed for industrial and scientific research
applications with high pump conversion efficiency, low power consumption and excellent beam
quality. It is compact and ready to use. It can be used as a stand-alone unit or easily inserted
into user’s apparatus.
Main Features:
Fiber delivery
Reliable, long lifetime
Maintenance free operation
High wall-plug efficiency
Convenient control interface
Fast modulation
Applications:
Laser quenching
Soldering metal sheets
Welding plastics
3D printing
Scientific research
2.2 Model Configuration
The RFL-A series include 1500W fiber delivered direct diode laser, and the model designation
codes are illustrated in the following table:

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1
RFL-A series, direct diode laser
2
Power in W, there are 1500W in this laser series
3
Laser model,‘D’indicates 'directly'
4
Wavelength, ‘B’ indicates the wavelength is 915nm, and the
wavelength of all the models in the series can be 976 nm
5
Length of delivery cable in meter, 10m and 15m optional
6
Connect type,‘A’indicates QBH
7
Cooling method, ‘W’ indicates water cooling
Table 2: Model Names and Designation Codes
Usually we omit the suffix and present the model name as RFL-A1500D, etc. However, you can
find the complete model name on the identification plate.
2.3 Package Contents
Please refer to the packing list accompanying the shipment to check actual items included.
2.4 Unpacking and Inspection
Your Raycus fiber delivered direct diode laser is shipped in a package designed to provide
maximum protection. Upon delivery, please inspect all packaging for evidence of mishandling
or damage. If you find any evidence of mishandling, please save the damaged material and
contact the shipping agent and Raycus immediately.
Remove all the contents from the packing case. Take extra care when removing the unit from
the packing case to ensure that the fiber optic cable is not snagged and damaged. A

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comprehensive packing list is included with the system documentation. Check all items against
the list and contact Raycus immediately if there is any missing item or evident damage to the
unit. DO NOT attempt to install or operate the laser, if there is any evident or suspected
damage to the unit.
It is recommended that you do not discard the packing materials, as they will be necessary if
you ever need to ship the unit back for service at a later date.
CAUTION: The fiber optic cable and output head are precise optic
instrument, ANY vibration or impact to the output head, and twist or
excessive bend to the cable will damage the instrument.
2.5 Operation Environment
The operation conditions are listed in the table below:
Table 3: The Operation Conditions for the Laser
Model(W)
1500
Power Capacity
(kVA)
≥3.75
Installation
Environment
Flat and no vibration
Ambient
Temperature
10℃~40℃
Relative Humidity
≤70%
It is recommended to install the product in an environment with air conditioning.
2.6 Precautions for Use
(1) Make sure the instrument is properly grounded before you use it;
(2) Make sure that the correct voltage of 380VAC power source is used. Failure to connect
power source correctly will damage the device;

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(3) There are no user serviceable parts, equipment or assemblies inside the product. All service
and maintenance shall be performed by qualified Raycus personnel. In order to prevent
electric shock, please do not break the seal or uncover the shield. Failure to comply with
this instruction will void the warranty;
(4) Please inspect the output head carefully for dust or other contamination. Use appropriate
lens paper to clean it if necessary. Do not touch the output lens at any time;
(5) Please cap the output head when it is not in use, and make sure the cap is clean;
(6) It is not allowed to install the output head when the laser is in operation;
(7) Do not look into the output head directly. Wear appropriate protective eye glasses all the
time when operating the laser;
(8) Failure to follow the instructions may cause malfunction and damage to the device, such
damage is not covered by warranty.
2.7 Specifications
The specifications are listed in the following table.

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Table 4: Product Specifications
Model
RFL-A1500D
Optical Parameter
Nominal Output
Power(W)
1500
Operation Mode
CW/Modulated
Polarization State
Random
Output Power
Tunability (%)
10~100
Emission Wavelength
(nm)
915±10
Output Power
Unstability
<3%
Modulation
Frequency (Hz)
50~20k
Red Guide Laser
Power (mW)
<10
Optical Output Characteristics
Connect model
QBH
Core Fiber (μm)
400
Fiber NA
0.22
Delivery Cable Length
(m)
10
Electrical Characteristics
Power Supply
AC 380V±10%, 50/60Hz, Single Phase
Max. Power
Consumption (KW)
3.75
Control Mode
RS-232/AD
Other Characteristics
Dimensions(W×H×D)
485×237×765(inc. handles)
Weight(kg)
<50
Operating Ambient
10~40

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Temperature(℃)
Humidity (%)
<70
Storage
Temperature(℃)
-10~60
Cooling Method
Water Cooling

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3 Installation
3.1 Dimensions
Figure 2, Figure 3 shows dimensions of the product (1500W model for example, other models in
the series have the same dimensions).
Figure 2: Front panel view (unit: mm)
Figure 3: Top and Side view (unit: mm)

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3.2 Output interface model
The following figure shows the details of QBH output head.
Figure 4: QBH Output head
CAUTION:
Inspect the aperture before install the output head to the processing
head. Clean the aperture if necessary.
It is strictly prohibited to disassemble the output head for Non-Raycus
Personnel, or the warranty is void.
3.3 Cooling Requirements
Table 5: Cooling Requirements
Parameter
Unit
1500
Cooling Capability
W
>3000
Minimum Flow
L/min
10
Maximum Pressure
Bar
7
Pipe Outside Diameter
mm
12
There are additional cooling requirements for the QBH head. The head should be cooled with
an independent water circuit. A chiller with double temperature outputs is a good option, and

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an individual chiller is also a proper choice. The cooling capability should be higher than 400W,
minimum flow should be 0.5L/min, outside diameter of the pipe should be 6mm, and the most
important, the maximum pressure is 2bar, and de-ionized water must be used.
CAUTION:
The water pressure to the QBH output head must be less than 2bar, or the
head will be damaged. Such damage is not covered by guarantee.
Water temperature setting:
Summer (ambient temperature higher than 30℃) 29±0.5℃;
Winter (ambient temperature lower than 30℃) 25±0.5℃
Requirements on Cooling Water:
Purified water should be used. In order to prevent mould growing that may lead to pipe
blockage, we recommend to add alcohol about 10% of the total volume. The cooling system
should be equipped with filter. Check and clean the filter every six months.
If the product is used in an environment that ambient temperature is between -10℃and 0℃,
we recommend to use 30% alcohol, and replace it every 2 months.
If the product is used in an environment that ambient temperature is below -10℃, you must
use chiller with both heating and cooling functions, and keep it in full-time operation.
Other requirements:
Ensure that the supply and return connections are correct.
If you will not use the laser for a long time, water must be emptied from the product, and then
both the inlet and outlet must be blocked with the nuts we provide. Failure to do so may lead
to permanent equipment damage.
CAUTION: Please set the water temperature in strict accordance with the
requirements above. Too low temperature may lead to condensation on
the laser module and the output head. This can cause serious damage to

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the equipment.
CAUTION: The cooling system should be turned on first. Check any water
leakage and make sure that the water temperature reaches the set point
before you start the laser.
3.4 Installation Procedure
(1) Check if the power supply has the correct voltage (380VAC±10%，50/60Hz), and the earth
line is connected, make sure it is firm and reliable;
(2) Place the product in an appropriate position, immobilize it if necessary;
(3) Connect the power cable and control cable to the product when power supply is OFF;
(4) Insert the water pipes into the inlet and outlet;
(5) Check the output head and clean it if necessary. This procedure must be performed by
Raycus personnel or person authorized by Raycus. Make sure the environment is clean, or
the output head may be contaminated. It is prohibited to use fan during installation, which
will cause dust in the air;
(6) Prevent the delivery cable from treading, pinching or excessive bending during installation;
CAUTION: All the cables can only be connected when power supply is off.
Hot plug may damage the laser.

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CAUTION:
Ensure that there are no fiber bends with radius less than 30cm when the
product is installed. Avoid excessive twisting and tight bends during the
robotic arm movements. Tight bends will damage the laser delivery
system.
When the product is in storage, the bending radius of the delivery cable
should be more than 20cm.
CAUTION: Avoid vibration and impact to output head, or it may be
damaged.
CAUTION:
Make sure the aperture and the cavity of the processing head is clean;
Keep the protective cap properly, prevent it from contamination; Or the
aperture will be contaminated when capped.
CAUTION: Removal of protective glass of the output head is prohibited for
the user.

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4 Using the Product
4.1 Front Panel
Figure 5 shows the front panel (1500W model).
Figure 5: Front Panel View
1. REM/OFF/ON: Key switch, the power switch of the laser. Insert the key; either turn the key
clockwise to the 'ON' position or counterclockwise to 'REM' position will power on the laser.
Then the laser will enter a control mode depending on your previous setup on the
'CTRL-INTERFACE'. You can refer to 4.6 Entering a Control Mode for more details.
2. POWER: Power Indicator, indicates that the power is switched on, when the green LED
illumines.
3. LASER: Laser emission button, it’s a button with an annular LED indicator (red color). In
hyper terminal mode and AD mode, when this button is pressed down, the product is ready
to emit laser, and the LED illumines. Press again will release the button, and disable the laser
emission.
4. ALARM: Alarm indicator, indicates a fault condition, when the yellow LED illumines.

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5. EMERGENCY STOP: Press it down to stop the laser immediately. Turn it clockwise to release,
but the laser cannot start before it’s powered on with key switch for a second time.
4.2 Rear Panel
Figure 6 shows the rear panel.
Figure 6: Rear Panel View
1. MOD: Modulation input, the BNC connector for switching the laser on and off in remote
control modes. The control signal should be able to apply current over 10mA, and the
voltage should be 24V.
2. CTRL-INTERFACE: Control interface, this interface is a male DB25 connector and it’s
multi-functional. You can set the control mode and input analog control signal with the
interface, and fault signal is sent from it.
3. RS-232: RS-232 serial port, this interface is a male DB9 connector, and will be used in hyper
terminal and RS-232 mode.
4. SERVICE: This interface is a female DB9 connector for commission, and can be used by
Raycus personnel only.

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5. AC INPUT: The socket for supply input that can be only mated with the plug on the power
cord we provided.
6. POWER:Air-switch,The switch must be turn on before laser starts.
7. WATER: Pipe connectors, the inlet and outlet for cooling water flow in and return, suitable
for 10 mm PU pipes.
4.3 Power Connection
CAUTION: Before connect the product to AC power, you must check up
that the AC supply you will apply is in accordance with the specifications
provided in Table 3.
A power cord is provided in the package, as in Figure 7
Figure 7: The Power Cord of the Laser
One end of the power cord is a plug, insert it in to the socket 'AC INPUT' on the rear panel.
Notice that the plug is wrong-side preventing. After insert it, lock it with the lever (Figure 8).