Raycus RFL-B500D User manual

Blue Light Fiber Delivered
Direct Diode Laser User Guide
RFL-B500D
Wuxi Raycus Fiber Laser Technologies Co., Ltd.

Wuxi Raycus Fiber Laser Technologies Co., Ltd
TABLE OF CONTENTS
1 Safety Information......................................................................................................................1
1.1 Safety Identifiers....................................................................................................................1
1.2 Laser Safety Grade................................................................................................................ 1
1.3 Security Identifiers................................................................................................................ 2
1.4 Optical Safety........................................................................................................................ 3
1.5 Electrical Safety.....................................................................................................................3
1.6 Other Safety Precautions....................................................................................................... 3
2 Product Description....................................................................................................................4
2.1 Features..................................................................................................................................4
2.2 Model Description................................................................................................................. 4
2.3 Packing Lists..........................................................................................................................5
2.4 Unpacking and Inspection..................................................................................................... 5
2.5 Operation Environment......................................................................................................... 6
2.6 Attentions...............................................................................................................................7
2.7 Performance...........................................................................................................................8
3 Installation.................................................................................................................................11
3.1 Overall Dimensions............................................................................................................. 11
3.2 Size and Installation of Output Head...................................................................................12
3.3 Cooling System installation and Requirements...................................................................13
3.4 Installation Precautions........................................................................................................14
4 Using the Product..................................................................................................................... 16
4.1 Front and Rear Panel........................................................................................................... 16
4.2 Power Connection................................................................................................................18
4.3 Interface Definition..............................................................................................................19
4.3.1 Service Safety Iinterface...............................................................................................19
4.3.2 MOD Modulation signal Interface............................................................................... 19
4.3.3 CTRL-INTERFACE.....................................................................................................21
4.3.4 RS-232 Serial Port........................................................................................................ 23
4.3.5 Ethernet TCP / IP interface and Connection Steps.......................................................23
4.4 Laser Working and Control Mode.......................................................................................26
4.5 Start Operation Sequence.................................................................................................... 26
4.6 Control Mode Selection.......................................................................................................26
4.6.1 External RS232 Control Mode Wiring Diagram.......................................................... 29
4.6.2 External Control Mode Operation Process...................................................................29
4.6.3 External Control RS232 Time Sequence Diagram.......................................................30

Wuxi Raycus Fiber Laser Technologies Co., Ltd
4.6.4 External Control AD Wiring Diagram......................................................................... 31
4.6.5 External Control AD Operation Process...................................................................... 32
4.6.6 External Control AD Time Sequence Diagram............................................................33
4.6.7 Inner Control Mode Wiring Diagram...........................................................................33
4.6.8 External Control AD Operation Process...................................................................... 34
4.6.9 Inner Control Mode Time Sequence Diagram............................................................. 34
4.7 Red Light Control................................................................................................................ 35
4.8 Shut-down Operation Sequence.......................................................................................... 35
5 Common Alarms and Solutions...............................................................................................36
5.1 Alarm Display......................................................................................................................36
5.2 Alarm Processing.................................................................................................................36
6 Warranty, Return and Maintenance...................................................................................... 38
6.1 General Warranty.................................................................................................................38
6.2 Limitations of Warranty...................................................................................................... 39
6.3 Service and Repair...............................................................................................................39

Wuxi Raycus Fiber Laser Technologies Co., Ltd
Raycus User Guide | Safety Information
1
1 Safety Information
Thank you for choosing Raycus fiber delivered direct diode laser. This User
Guide provides important safety, operation, maintenance and other information.
Please read it carefully before using this product. To ensure safe and optimal
operation of the product, please follow all warnings, cautions, operating procedures,
and other instructions accordingly.
1.1 Safety Identifier
WARNING: Describes a hazard that leads to a personal
injury or death.
CAUTION: Describes a hazard that leads to a minor
personal injury or product damage.
1.2 Laser Safety Grade
According to Clause 9 from the European Community standards EN 60825-1,
this series of lasers are classified as Class 4 laser. This product emits invisible laser
radiation at or near wavelength of 450 nm, and the light power emitted by output
head is more than 500W (depending on the model). Under such high power of laser
radiation, it may cause damages to the eyes or skin directly or indirectly. Despite
the radiation being invisible, the beam may cause irreversible damages to the retina
and cornea. Appropriate and certified laser goggles must be worn at all times when
the fiber laser is operating.
WARNING: Users must wear appropriate laser goggles,
while operating this device. The laser goggles are selected
according to the range of wavelength emitted from this
product. Users must ensure the protective range of laser
goggles selected corresponds correctly with the range of laser
wavelengths. Please do not directly view the laser output head
when laser is powered on.

Wuxi Raycus Fiber Laser Technologies Co., Ltd
Raycus User Guide | Safety Information
2
1.3 Security Identifiers
Figure 1 Top view and rear view
Figure 1 displays laser safety identifiers and its location, including safety
warning, laser output head warning, etc. The detailed descriptions of the security
identifiers are as follows:
Table 1 Security Identifiers
1: Laser Radiation Hazard
2: Laser Output
Head Warning(English)
3: Laser Output Head
Warning(Chinese)
4: Class 4 Laser
Product(English)
5: Class 4 Laser
Product(Chinese)
6: Class 2M laser Product
– 1 m W red light(English)

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Raycus User Guide | Safety Information
3
7: Class 2M laser Product
– 1 m W red light(Chinese)
8: Electrical Hazard
1.4 Optical Safety
Any dust on the end of the collimator assembly can burn the lens.
CAUTION: DO NOT emit when the protective cap is
not opened, otherwise the lens or crystal will be damaged.
1.5 Electrical Safety
1）Make sure the product is firmly grounded through the PE line of the AC
power cord.
WARNING: Any interruption from the protective earth
will electrify the enclosure, which may result in personal
injury for operators.
2）Make sure that the correct voltage of the AC power source is used.
CAUTION: Wrong wiring mode or power supply
voltage will cause an irrecoverable damage to the laser
device.
There are no devices that need to be used by operator in the laser. Please
do not try to open the laser housing, otherwise it may cause an electric shock
and the warranty will be invalid accordingly.
1.6 Other Safety Precautions
1）Do not directly view the laser output head when the laser is emitting.
2）Do not use the fiber laser in dark or dim 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.

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Raycus User Guide | Product Description
4
4）There are no user serviceable parts, equipment or assemblies inside the product.
All service and maintenance shall be performed by Raycus. 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.
2 Product Description
2.1 Features
Raycus fiber delivered direct diode laser, compared with other lasers, has
higher electro-optical conversion efficiency and lower power consumption. It is
compact and ready to use. Because of flexible laser output mode, it can be easily
integrated with system devices.
Main Features:
Flexible cable output
Highly reliable and long life
Maintenance-free operations
High Electro-optical Conversion Efficiency
Easy to use control interface
High modulation frequency
High absorptivity of nonferrous metals
Applications:
Copper Welding and cladding
Soldering
3C and new energy
Laser research
2.2 Model Description
The definitions of the model code for RFL-B500D fiber delivered direct diode
lasers are shown in the table below:
Table 2 definition of model code

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Raycus User Guide | Product Description
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1
RFL-B represents blue light series laser
2
Power indicator, including 500W fiber delivered direct diode laser
3
Wavelength, ‘B’ represents a wavelength of 915nm, ‘C’ represents a
wavelength of 976nm, ‘D’ represents 940nm, ‘E’ represents 808nm, ‘F’
represents 450nm
4
Cable length, unit meter, including 5 meters and 10 meters, also can be
customized length
5
Output cable interface type: ‘A’ represents iHBQ interface, ‘B’ represents
SMA905, ‘C’ represents D80 interface
6
Cooling method, ‘W’ stands for water cooling, ‘T’ represents TEC air
cooling, ‘A’ stands for air cooling
7
Core fiber, unit is um
2.3 Packing Lists
Please refer to packing lists located in the packing box.
2.4 Unpacking and Inspection
Raycus fiber laser is delivered with the specially designed package to offer
the fiber laser maximal safety. Nevertheless, in order to prevent the occurrence of
unpredictable circumstances during the transportation, please inspect all packaging
once receiving the delivery. If you find any evidence of mishandling or damages,
please keep the damaged material and contact the shipping agent and Raycus
immediately.
Please double check if each listed content is inside the package; and contact
Raycus as soon as possible if there are any issues.
Take extra care when removing the unit from the package to prevent the fiber
optic cable from any collision and vibration. Please do NOT distort, bend or pull
the output cable when unpacking the device; and avoid any collision to the head of
laser output.

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Raycus User Guide | Product Description
6
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 following table:
Table 3: The Operation Environment Conditions for the Laser
Requirements
Parameters
Model
500
Power Capacity
（kW）
2.5
Installation
Environment
Flat and no vibration
Ambient
Temperature
(℃)
10～40
Relative
Humidity （％）
＜70
Advice:
Place the laser in environments with air conditioning to ensure the laser
operates in the best condition.
Do not operate this product in the environment of high
humidity (humidity> 95%).
Do not operate this product in the environment of high
temperature (temperature > 40℃).
Do not allow this product to operate at a temperature
below the ambient dew point. (As shown in Table 4)
Table 4 Comparison table of constant dew point at ambient temperature and
relative humidity
Constant dew point table at ambient temperature and
relative humidity
Ambient
temperature
（℃）
Maximum relative humidity
20%
30%
40%
50%
60%
70%
20
-3.5
2
6
9
12
14.5
25
0.5
6
10.5
14
16.5
19

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Raycus User Guide | Product Description
7
30
4.6
10.5
15
18.5
21.5
24
35
8.5
15
19.5
23
26
28.5
40
13
20
24
27.5
31
33
The necessary moisture-proof treatment has been done in the design of
the laser, but the serious condensation effect can not be completely avoided.
As condensation is an objective physical phenomenon, the way to avoid
condensation is usually from two aspects:
1) The water temperature of the water cooler should be set higher
than the condensation temperature, but it needs to conform to cooling
requirements. Therefore, in the corresponding environment, the water
temperature setting can only select the blue area temperature in the dew
point comparison table, so this method has limitations.
2) By decreasing the temperature and humidity of laser working
environment, it can expand setting range of water cooling temperature
to make the water temperature lower than the dew temperature.
2.6 Attentions
1) Make sure that grounding is safe and firm before using the laser.
2) Make sure that the correct voltage (220VAC) is used before connecting
AC current. Failure to connect power supply will damage the device.
3) It is forbidden to touch laser processing head during operation.
4) It is forbidden to view the output head directly; and make sure that laser
protective goggles are worn when operating the device.
5) Please cap the output head when it is not in use. Do not touch the output
lens at any time. Use appropriate lens paper and alcohol to clean it if
necessary.

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Raycus User Guide | Product Description
8
6) High temperature in summer is easy to make laser condensate, which
causes permanent damage to laser. Please make sure when laser is
powered off, water chiller is also powered off.
7) Low temperature in winter is easy to make laser inside freeze, which
causes permanent damage to laser. Please make sure when laser is
powered off, water chiller is powered on.
8) Failure to operate the laser in accordance with the control or adjustment
methods specified in this manual may cause damage.
2.7 Performance

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Raycus User Guide | Product Description
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Table 5 Product Paremeters
Model
RFL-B500D
Optical Characteristics
Output Power(W)
500
Operation Mode
CW/Modulated
Polarization State
Random
Power Range(%)
10~100
Central Wavelength
(nm)
430-470
Output Power
Instability （%）
＜3
Modulation
Frequency(Hz)
50~10k
Red Laser Output
Power(mW)
0.25~1
Output Cable Characteristics
Output Head Model
iHQB

Wuxi Raycus Fiber Laser Technologies Co., Ltd
Raycus User Guide | Product Description
10
Core Fiber(μm)
400
Min Winding
Diameter(mm)
≥300
Beam Divergence
Half-angle(rad)
≤0.22
Delivery Cable (m)
() ()
5（can be customized）
Electrical Characteristics
Power Supply
Single phase 220 ± 10% V AC、50/60Hz (AC)
Control Mode
RS-232/AD
Other Characteristics
Dimensions(W×H×D)
(mm)
447×238×850
Weight(kg)
<60
Operating Ambient
Temperature (℃)
10~40
Humidity(%)
<70
Storage
Temperature(℃)
-10~60
Cooling Method
Water Cooling

Wuxi Raycus Fiber Laser Technologies Co., Ltd
Raycus User Guide | Installation
3 Installation
3.1 Overall Dimensions
Figure 2 shows the external dimensions and installation size.
Figure 2 Front view (Unit: mm)

Wuxi Raycus Fiber Laser Technologies Co., Ltd
Raycus User Guide | Installation
Figure3 Top view (unit: mm)
3.2 Size and Installation of Output Head
iHQB output head is shown as Figure 4
Figure 4 Dimensional drawing of iHQB output head

Wuxi Raycus Fiber Laser Technologies Co., Ltd
Raycus User Guide | Installation
Before installing the output cable in the processing head, the
lens of the output cable must be inspected. If the lens is dirty, it
must be cleaned.
When installing output head into welding head, the slot of
welding head short circuiting two copper rings of output head
must be promised, otherwise alarm will start.
It is forbidden to disassemble protective lens of output head by
any party other than Raycus personnel, otherwise the warranty
is invalid.
3.3 Cooling System Installation and Requirements
Table 6 Cooling System Requirements
Parameters
Unit
RFL-D500D
Cooling Capability (W)
W
≥3000（1.2）
Minimum Flow (L/min)
L/min
8
Maximum Input Pressure
(Bar)
Bar
7
Water Pipe Joint Type and
Size
mm
Straight quick plug joint (external
diameter 12φ, PU water pipe)
Chiller Type
/
Double temperature and control
1) Temperature setting of cooling water:
In summer (ambient temperature is more than 30 ℃)25±0.5 ℃ (ambient
temperature is lower than 30℃) 22±0.5℃.
2) Requirements of Cooling Water:
Purified water should be used and drinking purified water can be used.
In order to prevent the growth of mold that may lead to blockage, adding no less
than 10% ethanol of the total volume to purified water is recommended.
3) Other cooling system requirements:
Check the entire water system and joints for leaks when starting the cooling
system the first time. The external water pipe must be installed and connected

Wuxi Raycus Fiber Laser Technologies Co., Ltd
Raycus User Guide | Installation
according to the water inlet (IN) and water outlet (OUT) marked by the laser,
otherwise the laser may not work properly.
If the laser is not used for a long time, the cooling system and the cooling water
inside the laser should be drained, otherwise it will cause irrecoverable
damage to the laser.
When drain the cooling water in the water cooling system, please use less than
0.5Mpa compressed gas, otherwise it will cause irreversible damage to water
cooling system.
Set the water temperature of the cooling system correctly
according to the ambient temperature. If the water
temperature is set too high, the laser will not work properly.
If the water temperature is set too low, condensation will
occur inside the laser or the laser output cable, which will
cause irrecoverable damage to the laser.
Before staring the laser, the cooling system must work
properly and the water temperature reaches a suitable
temperature.(summer: 25±0.5℃; winter:22±0.5℃)
3.4 Installation Precautions
1) Place the product in an appropriate position, immobilize it if necessary.
2) Before the laser is powered on, please inspect whether correct voltage of AC
supply power is used(220VAC±10%, 50/60Hz)
3) Connect the power cable and control cable to the product when power supply is
OFF.
4) Connect the cooling system to the laser and output fiber cables according to the
water inlet and outlet signs.
5) Please check the laser output head and do the necessary cleaning before installing
it in the device.
6) Prevent the delivery cable from treading, pinching or excessive bending during
installation in order to avoid damages.

Wuxi Raycus Fiber Laser Technologies Co., Ltd
Raycus User Guide | Installation
7) Make sure the ambient environment is clean, or the output head may be
contaminated. It is prohibited to use fans during installation, which will cause
dust in the air.
CAUTION: All the cables can only be connected when
power supply is off. Hot plug may damage the device.
Ensure that output cable is placed in a natural state. Avoid
its excessive twisting and tight bends.
Tight bends will damage the laser delivery system.
During the process of installation and disassembling, please
handle the output head gently in case of vibration and
collision.
Before assembling the laser output head, the optical lens and
the processing head cavity must be clean and pollution-free.
Please take good care of the protective cap of the output
head to prevent it from being polluted.Otherwise, it will
cause indirect pollution to the output head when the
protective cap is covered

Wuxi Raycus Fiber Laser Technologies Co., Ltd
Raycus User Guide | Using the Product
4 Using the Product
From January, 2019, Model S1901Lxxx has already stop
using super terminal, and super terminal can not be
displayed when laser is powered on. Please log on Raycus
official website to download the upper computer software
(Version 3.4)and manual.
4.1 Front and Rear Panel
Figure 5 front panel
Figure 5 shows the front panel model.
1) LASER: red laser indicator, when red light is on, it indicates that the laser receives
light output enable signal and red light indicator is turned off; when red light is off,
it indicates that the laser does not receive light output enable signal and red light
indicator is turned on.
2) POWER: green power indicator, when green light is on, the power is turned on.
3) ALARM: yellow alarm indicator, when yellow light is on, the laser has faults.

Wuxi Raycus Fiber Laser Technologies Co., Ltd
Raycus User Guide | Using the Product
4) REM/OFF/ON: key switch and power switch. Insert the key and turn to “ON”
button or “REM” to turn on the laser. The laser will enter corresponding control
mode according to preset “CTRL-INTERFACE” and follow-up operation.
5) START: light output enable button, red light indication. Press the button and the
laser is waiting for light output at the same time when red light is turned off; press
the button again to make it pop up and the laser turns off light output enable and
red light is turned on.
6) EMERGENCY STOP: press to turn off the laser immediately and lock it. Rotate
clockwise to release button. To return to normal working condition, users must
repower it by key switch.
Figure 6 laser real panel
Figure 6 shows the rear panel of the laser
1. AC INPUT：the socket for mains in. The socket must connect with the corresponding
input voltage according to laser model (referring to product parameters in table 5) and
be used with plug provided by Raycus.
2. Power：air switch, it can control AC on and off.