Small Fiber Laser User Guide 2000W
Wuhan Raycus Fiber Laser Technologies Co., Ltd.
TABLE OF CONTENTS
Warranty, Return and Maintenance
Thank you for choosing Raycus fiber laser. This User Guide provides important safety, operation, maintenance and other information. Please read it carefully before using this product. To ensure safe operation and optimal performance of the product, please follow all warnings, cautions, operating procedures and other instructions accordingly.
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.
Laser Safety Grade
This series of lasers are classified as a high power Class 4 laser instrument accounting to the European community standards EN 60825-1, clause 9. This product emits invisible laser radiation at wavelength of 1080 nm, and the light power is 100-2000W (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. Therefore, appropriate and approved laser goggles must be worn all the times when the fiber laser is operating.
WARNING: Users must use appropriate laser goggles when operating this device. The laser goggles are selected according to the range of wavelength emitted from this product. Users must select the appropriate laser goggles according to the entire range of laser wavelengths. Please do not directly look at the fiber delivery cable connector when laser is powered on.
Raycus CW Fiber Lasers have different locations of safety identifiers depending on the model, as shown in Figure 1:
Figure 1 Laser Security Identifiers
Laser safety identifiers include: safety warning, laser fiber delivery cable connector warning, product certification, ID label, etc. The detailed descriptions of the security identifiers are as follows:
Table 1 Security Identifiers
1: Fiber Delivery Cable Connector
2: Type 4 Laser Product
3: Class 2M Laser Product Label-1mW Red Laser
4: CE Authentication
5: ID Label
6: Laser Radiation Hazard
7: Electrical Hazard
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.
Make sure the product is firmly grounded through the PE line of the power cord.
WARNING: Any interruption from the protective earth will electrify the enclosure, which may result in personal injury for operators.
Make sure that the correct voltage of the AC power source is used.
CAUTION: Wrong wiring mode or power supply voltage will cause an irreversible damage to the fiber lase.
There are no components that need to be used by operator in the laser. Please do not try to open the laser housing, otherwise it may cause electric shock and the warranty will be invalid accordingly.
Other Safety Rules
1）Do not directly look the laser fiber delivery cable connector when laser emitting.
Avoid using the laser in a dark environment. 2）Do not use fiber lasers in dark environment.
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.
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.
Raycus fiber laser, compared with traditional laser, has higher electro-optical conversion efficiency, lower power consumption and more excellent beam quality. It is compact and ready to use. Because of flexible laser output mode, it can be easily integrated with the device.
Excellent beam quality
High reliable and sealing
High power stability
Power continuously adjustable and fast switch response
High Electro-optical Conversion Efficiency
High modulation frequency and editable waveform
Raycus continuous wave laser includes 100, 200L, 200, 300L, 300, 500, 750, 1000,1500 and other models, which respectively represent 100W, 170W, 200W, 250W, 300W, 500W, 750W, 1000W and 1500W lasers. The definitions of the model code are shown in the table below:
Table 2 definition of model code
RFL-C series continuous wave fiber laser
Power indicator, including 100, 200L, 200, 300L, 300, 500, 750, 1000, 1500W respectively representing 100W; 170W; 200W; 250W; 300W;
500W; 750W; 1000W; 1500 power laser
Wavelength, ‘B’ represents a wavelength of 1080nm
Output cable length, unit meter, including 15 meters and 20 meters, also can be customized length
Cooling method, ‘W’ stands for water cooling, ‘A’ stands for air cooling
Notes: RFL-C100 ~ RFL-C3000 laser without air conditioning
Please refer to package accessories are in the packing box.
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 contents is inside the package; and contact Raycus as soon as possible if there is any issue.
Take extra care when removing the unit from the package to make the fiber optic cable stay away from collision and vibration. Please do NOT distort, bend or pull the output cable when unpacking the device; and avoid any collision to the fiber delivery cable connector.
CAUTION: The fiber optic cable and fiber delivery cable connector are precise optic instrument, ANY vibration or impact to the fiber delivery cable connector, and twist or excessive bend to the cable will damage the instrument.
The operation conditions are listed as the following table:
Table 3: The Operation Environment Conditions for the Laser
380±15% V AC
Flat and no vibration
Make sure the product is properly grounded before use.
The fiber delivery cable connector is connected with fiber optic cable. Please inspect the fiber delivery cable connector carefully to prevent dust or other contaminations. Use appropriate lens paper to clean it if necessary.
Failure to follow the instructions when operating the laser may cause malfunction and damage.
It is not allowed to install the fiber delivery cable connector when the laser is in operation.
Do not look into the fiber delivery cable connector directly. Wear appropriate protective eye glasses all the time when operating the laser.
Do not expose this product to high humidity (humidity> 95%).
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
Constant dew point table at ambient temperature and relative humidity
Maximum relative humidity
Raycus User Guide | Product Description
Laser operating temperature range
Make sure that the correct voltage (according to Table 3) is used before connecting AC current. Failure to connect power supply will damage the device.
Failure to operate the laser in accordance with the control or adjustment methods specified in this manual may cause damage.
For the output laser collimated by the collimating lens, it is important to keep the collimating lens clean, and otherwise it will damage the device.
Please cap the fiber delivery cable connector 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.
Failure to follow the instructions may cause laser power loss, and such loss is not covered by warranty.
Raycus User Guide | Product Description
Table 5 Product Specifications
Central Wavelength (nm)
Nominal Output Power
Output Power Instability （%）
Nominal Output Power;
Ambient Temp.: 25±1℃
Nominal Output Power
Red Laser output Power(mW)
Optical Output Characteristics of IQB head
Beam Parameter Product (BPP, mm•mrad)
BPP <1.5 (mm×mrad)
Nominal Output Power，4σStandard
Raycus User Guide | Product Description
Half Angle Divergence
Nominal Output Power，4δStandard
Beam quality (M²)
50（100、200 are optional）
Delivery Cable (m)
380±15% V AC、50/60Hz
Max. Power Consumption(W)
Operating Ambient Temperature (℃)
3.1.1 Overall dimensions of RFL-C2000 small laser
Figure 2 shows the dimensions of the RFL-C2000 laser.
Figure 2 (a) Front view (Unit: mm)
Figure 2 (b) Rear view (unit: mm)
Figure 2 (c) Top view (Unit: mm)
Size and installation of output optical cable
Raycus continuous wave fiber laser uses different laser output cables according to different laser models.
3.2.1 RFL-C1000 ~ RFL-C2000 Output Optical Cable
The output cables of Raycus RFL-C1000 ~ RFL-C2000 small lasers are self-made IQB output cables. The specific appearance dimensions are shown in Figure 4 below:
Figure 4 Dimensional drawing of IQB output optical cable
For IQB output optical cables, the two copper contacts (InterLock pins) on the fiber delivery cable connector must be shorted before the laser works, otherwise the laser will not work properly. Usually the copper contacts are automatically shorted after the output fiber cable is installed in the processing equipment.
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.
It is forbidden to disassemble the output lens by anyone other than Raycus, otherwise the warranty will be invalid.
Cooling system installation and requirements
Table 6 Cooling System Requirements
Cooling Capability (W)
Minimum Flow (L/min)
Maximum Pressure (Bar)
External diameter of pipe (mm)
Cooling system water temperature (℃)
Temperature setting of cooling water:
Chiller 22±0.5℃(it does not have to be changed in summer)
Requirements on Cooling Water:
Purified water should be used.
In order to prevent the growth of mold that may lead to blockage, adding alcohol solution to about 10% of the total volume is recommended.
If ambient temperature is between -10℃ and 0℃, we recommend to use 30% alcohol(volume ratio), and replace it every 2 months.
If ambient temperature is below -10 ℃, the chiller with both heating and cooling functions must be used, and keep it in full-time operation.
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 according to the water inlet (IN) and water outlet (OUT) indicated according to the laser, and 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.
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.
Place the product in an appropriate position, immobilize it if necessary.
Check if the power supply has the correct voltage (laser model and power voltage refers to product parameters in Table 5 ), and ensure the earth line is firmly connected..
Connect the power cable and control cable to the product when power supply is OFF.
Connect the cooling system to the laser and output fiber cables according to the water inlet and outlet signs.
Please check the laser fiber delivery cable connector and do the necessary cleaning before installing it in the device. If you find that there is dust or foreign objects that cannot be cleaned, please contact Raycus in time, and do not continue installation and operation for the time being.
Prevent the delivery cable from treading, pinching or excessive bending yellow / metal armor protective sleeve during installation.
Please handle the laser output cable carefully, and do not receive vibration during the installation and disassemble.
Make sure the environment is clean, or the fiber delivery cable connector may be contaminated. It is prohibited to use fan 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.
The minimum bending diameter of the transmission cable of the laser shall not be less than 20cm in the non-working state (such as transport and storage). The minimum bending diameter should not be less than 30cm when the laser is working.
Ensure that the laser output optical cable must be placed in a natural state as far as possible, and it is forbidden to twist the output optical cable
If the winding diameter of the output optical cable is too small, the laser will be damaged
Before the laser output cable is assembled, the lens and the cutting head cavity must be clean and free of pollution.
Keep the protective cap properly, prevent it from contamination; or the aperture will be contaminated when capped.
Using the Product
The Raycus continuous wave laser (with network port) has stopped using the super terminal. After the laser is powered on, there is no display on the super terminal. Please log in to the official website of Raycus to download the new version of the upper computer software and upper computer software instruction manual.
Figure 5 shows the front panel style of RFL-C1000 ~ RFL-C2000 welding laser (taking RFL-C1000 as an example, the front panel styles of other products are the same):
Figure 5 RFL-C1000 laser front panel
Figure 6 shows the rear panel style of the RFL-C2000 welding laser.
Figure 6 RFL-C2000 laser real panel
Alarm：Laser fault indicator lamp
Laser：Laser output indicator lamp
Power ： The laser power indicator lamp is on, indicating that the laser is powered on.
Water pipe joint: Pagoda joint, insert the quick-plug water pipe with an outer diameter of 16 into the pagoda head and fasten it with a clamp to connect the laser to the circulating cooling water.
Interface：Laser external control interface, see [4.4 Interface and Definition]
RS232 ： 232 serial interface used for communication between laser and host computer.
ETHERNET：Ethernet interface for communication between laser and upper computer.
Power: Rocker switch for turning on the laser main power.
AC INPUT：Power line input
Before connecting the AC power supply, please check whether the laser model and the AC power supply provided are consistent with those listed in Table 3 or table 5.
Table 7 Power connection requirements
380±15% V AC
Power cord end
Four strands, marked L1, L2,L3 and PE respectively
L1–>Phase line (brown)
L2 –> Phase line (gray) L3 –> Phase line (black)
PE–>Protective earth wire (yellow green)
Insert the plug at the end of the power cord into the socket marked "AC INPUT" on the rear panel. Note that the plug has anti-reverse connection function. After plugging it in, lock it with a lock.
Figure 7 shows the DB25 control interface diagram:
Figure 7 DB25 control interface The pin definitions of DB25 are as follows:
Table 8 Control interface definition
Input and output
Reserve long-dista nce power supply
Reserve long-dista nce power
External analog quantity setting
Optical power signal output
12, 13 feet return
15 feet return
Red light control
17, 18, 21 feet return
Laser fault reset
External voltage for output of Ready and
Not allowed to connect
Please check the level of the control signal to ensure compliance. Exceeding voltage or voltage fluctuations may damage the laser
Please ensure that the analog signal DOES NOT exceed 10V, or product may be damaged.
Please use 2 and 3, 8 and 9, 10 and 11 through short circuit.
RS-232 serial port
The following figure shows the RS-232 serial port
Figure 8 RS232 serial port
Each pin is defined as follows.
Table 9 RS-232 serial port definition
A three-core (RxD, TxD, GND) crossing line is used. For specific commands and descriptions, please refer to the software manual of the host computer or ask a Raycus technician for a communication protocol. The specific parameter settings of the RS-232 control interface are as follows:
Table 10 RS-232 interface configuration parameters
Figure 9 RS-232 serial cable configured for the product
Figure9 RS-232 serial cable
Ethernet TCP / IP interface and connection steps
The default IP address of the laser is 192.168.0.10 and the laser only supports UDP communication and communication port 8099. The command must be sent as a single string in a single packet.
Table 11 Ethernet interface pin definition
Receive Data –
If conditions permit, please use this interface first to get better communication stability.
Ethernet connection steps:
First Step: Open Raycus PC software，click “Session→RS232(or Ethernet)”to make the host computer communicate with the laser, and then click "Tool → Laser IP Set" to enter the laser IP address setting;
Second Step:The default password is "1122334455667788". After passing the verification, read or set a new laser IP address.
Third Step: If you use the upper computer software of Raycus to control the laser, you need to find the folder where the upper computer software is located, open the laser configuration file config.xml, and write the newly set IP address of the laser; if you do not use the upper computer of Raycus, please directly enter the fourth step;
Fourth Step: Configure the Ethernet network connection on the PC side, select "Use the following IP address:", and manually assign the IP address. The PC side
IP address must be on the same network segment as the laser IP address, and assign a subnet mask address. The default is 255.255.255.0. Click the "OK" button to confirm the settings and exit.