Raycus RFL-C1500 User manual

Continuous-Wave Fiber Laser
User Guide
RFL-C1500/RFL-C2000
Wuhan Raycus Fiber Laser Technologies Co., Ltd.

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
TABLE OF CONTENTS
1 Safety Information......................................................................................................................1
1.1 Symbols Used in this User Guide......................................................................................1
1.2 Laser Classification........................................................................................................... 1
1.3 Safety Labels..................................................................................................................... 2
1.4 Optical Safety.................................................................................................................... 3
1.5 Electrical Safety.................................................................................................................3
1.6 Other Safety Rules.............................................................................................................4
2 Product Description....................................................................................................................5
2.1 Features..............................................................................................................................5
2.2 Model Configuration......................................................................................................... 5
2.3 Package Contents...............................................................................................................6
2.4 Unpacking and Inspection................................................................................................. 6
2.5 Operation Environment..................................................................................................... 7
2.6 Precautions for Use............................................................................................................8
2.7 Specifications.....................................................................................................................8
3 Installation.................................................................................................................................11
3.1 Dimensions...................................................................................................................... 11
3.2 Output Cables and Installation........................................................................................ 12
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 Steps of Installation......................................................................................................... 24
4.6 Steps of Starting...............................................................................................................24
4.7 Control Modes................................................................................................................. 25
4.8 Steps of shutting down.................................................................................................... 30
5 Alarms and Solutions............................................................................................................... 31
5.1 Alarms Display................................................................................................................ 31
5.2 Alarm solutions................................................................................................................31
6 Warranty, Return and Maintenance...................................................................................... 35
6.1 General Warranty.............................................................................................................35
6.2 Limitations of Warranty.................................................................................................. 35
6.3 Service and Repair...........................................................................................................35

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
1 Safety Information
Thank you for choosing Raycus fiber 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: Refers to a potential hazard that may leads to a personal
injury or death.
CAUTION: Refers to potential a hazard that may leads 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 1080 nm, and the total light power radiated from the
optical output is greater than 1500W~2000W (depending on model). Direct or indirect exposure
of this level of light intensity may cause damage to the eyes 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 operating.

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
WARNING: You must use appropriate laser safety eyewear when this
device is operating. 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 being used protects against light
emitted by the device over its entire range of wavelengths. Please 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
The position of the safety labels on products varies depending on the model of the
continuous-wave fiber laser, as shown in Figure 1:
Figure 1: Safety Label Locations of RFL-C1500X、C1500H/RFL-C2000X、C2000H

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
These safety labels 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
(Take 500W for example)
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
Label
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.
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.

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
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 correct voltage could damage the
product.
1.6 Other Safety Rules
(1) Never look directly 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) There are no operator serviceable parts inside, and all maintenance must be performed
in Raycus or by qualified Raycus personnel. Do not try to remove covers, or electrical shock
may be caused, and warranty will be void.

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
2 Product Description
2.1 Features
Compared with traditional lasers, Raycus CW fiber laser has higher efficiency
electric-optical conversion, lower power consumption and excellent beam quality. The fiber laser
is compact and ready to use. It can be used as a stand-alone unit or easily inserted into user’s
apparatus.
Main Features:
Excellent beam quality
High quality fiber output
High Power Stability
Continuously tunable output power, quick switching response
Maintenance free operation
High wall plug efficiency
Convenient control interface
High frequency modulation
Applications:
Cutting, Welding
3D Printing
Scientific research
2.2 Model Configuration
The series of Raycus continuous-wave fiber laser include 1500W and 2000W, and the model
designation codes are illustrated in the following table:
Table 2 Model Names and Designation Codes

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
1
RFL-C series, continuous-wave (CW) fiber laser
2
Power in watts:
1500X、1500H--1500W
2000X、2000H--2000W
3
Wavelength:
B--1080nm
4
Length of delivery cable in meter, including 15m and 20m, and other length can
be customized
5
Cooling method:
W-- water cooling
A-- air cooling
Note: No air conditioner in this laser series except the RFL-C1500X、1500H/C2000X、
2000H.
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
Raycus CW fiber 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 out
of the packing case to ensure that the fiber optic cable is not twisted, hauled or damaged. A
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 to keep the packing materials, as they will be necessary if you ever need
to ship the unit back for service at a later date.

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
CAUTION: The fiber optic cable and output head is 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 basic operation conditions are listed in the table below:
Table 3 Basic Operation Conditions for the Laser
Model
C1500X-1500H
C2000X-2000H
Supply Voltage(V)
380±10% V AC 50/60Hz
Supply Capacity(kW)
5.5
6.5
Installation Requirements
Install on flat surface, no vibration or impact
Ambient Temperature(℃)
10~40
Relative Humidity(%)
<70
Warning：
1) Ensure reliable grounded before using the laser.
2) The laser output is connected to the output cable. Please check the laser output carefully
to prevent dust or other contamination. Use special paper when cleaning the laser output lens.
3) If the laser is used in accordance without the method specified in this manual, the laser
may be in abnormal working state and cause damage.
4) It is strictly forbidden to install the laser output when the laser is in operation.
5) Do not look directly into the laser output. Be sure to wear protective glasses when
operating the laser.
Do not expose this product to high humidity（＞95%）
Do not let this product work below the ambient dew point temperature
Table 4 The Constant Dew Point Table
AMBIENT DEW POINT
Room Temperature
Maximum Relative humidity

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
（℃）
20%
30%
40%
50%
60%
70%
80%
90%
95%
20
-3.5
2
6
9
12
14.5
16.5
18
19
25
0.5
6
10.5
14
16.5
19
21
23
24
30
4.6
10.5
15
18.5
21.5
24
26
28
29
35
8.5
15
19.5
23
26
28.5
31
33
34
40
13
20
24
27.5
31
33.5
36
38
39
Laser operating temperature range
2.6 Precautions for Use
(1) Before supplying the power to the device, make sure that the correct voltage of the AC
power source is used (See Table 3 for the laser model and corresponding input voltage). Failure
to connect power source correctly will damage the device;
(2) Failure to follow the instructions may cause malfunction and damage to the device, such
damage is not covered by warranty.
(3) It is very important to ensure the cleanness of the calibrated laser output head, otherwise
it will cause irreparable damage to the laser.
(4) Please inspect the output head carefully for dust or other contaminations. Use
appropriate lens paper to clean it if necessary. Do not touch the output lens at any time; as well
as remember to cap the output head when it is not in use, and make sure the cap is clean;
(5) Failure to follow the specified instructions may result in the loss of laser power, and
such loss will not be covered by the warranty.
2.7 Specifications
The specifications are listed in the following table

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
Table 5 Specifications
Table 6 Product
SpecificationsModel
C1500X
C1500H
C2000X
C2000H
Test Conditions
Optical Specifications
Nominal Output Power (W)
1500
2000
Operation Modes
CW/Modulated
Polarization State
Random
Output Power Tunability(%)
10~100
Emission Wavelength(nm)
1080±5
Nominal Output Power
Output Power Instability(%)
±1.5
Nominal Output Power
Operation Time：≥5h
Ambient Temperature: 25±1℃
Modulation Frequency(Hz)
1~5,000
Nominal Output Power
Red Guide Laser Power(mW)
0.5~1
Optical Output Characteristics of QBH head
Beam Quality (mm×mrad)
BPP <2.7
BPP <1.5
BPP <2.7
BPP <1.5
Nominal Output Power，Nominal 4σ
Divergence half-angle（rad）
<0.11
<0.06
<0.11
<0.06
Fiber Core Diameter(μm)
50
Delivery Cable Length(m)
20
Length customizable
Electrical Characteristics
Power Supply
380 ± 10% V AC、50/60Hz
Max. Power Consumption(W)
5500
6500
Control Mode
RS-232/AD/Ethernet

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
Other Characteristics
Dimensions(W×H×D)
900×447×237 (include. handles)
Weight(kg)
<70
Operating Ambient Temperature
(℃)
10~40
Humidity (%)
30-70
Storage Temperature (℃)
-10~60
Cooling Method
Water Cooling

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
3 Installation
3.1 Dimensions
Figure 22 shows dimensions of C1500X/C1500H and RFL-C2000X/C2000H (take
RFL-C2000X for example,).
Figure 2 (a) Front panel view (unit: mm)
Figure 2 (b) Rear panel view (unit: mm)

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
Figure 2 (c) Top and Side view (unit: mm)
3.2 Output Head and Installation
Figure 3a Dimensions of QBH Output Head（1500X、2000X）

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
Figure 4b Dimensions of iQB Output Head（1500X、2000X）
Figure 4c Dimensions of iQB Output Head（1500H、2000H）
The QBH and iQB laser output head ofC1500X/C1500H and RFL-C2000X/C2000H are all
the standard QBH interface. The specific appearance and dimensions are shown in Figure 3
above.
CAUTIONS:
Inspect the output lens before installing the output head to the
processing head. Clean the output lens if necessary.
It is strictly prohibited to disassemble the output head by personnel not
approved by Raycus, or the warranty is void.
3.3 Cooling Requirements
Table 7 Cooling Requirements
Model
1500X/1500H
2000X/2000H
Cooling Capability(W)
>4500
>6000
Minimum Flow (L/min)
15
Maximum Pressure (Bar)
7
Pipe Inner Diameter(mm)
19
19
Water temperature of cooling system (℃)
25±1℃

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
1) The water temperature setting of cooling system:
25±1℃（RFL-C1500X、1500H/C2000X、2000H）
2) Cooling water requirements:
It is recommended to use purified water.
In order to prevent mould growing that may lead to pipe blockage, we recommend to add
alcohol about 10% of the total volume.
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 two months.
If the product is used in an environment that ambient temperature is below -10℃, please
to use dual-system chillers (with heating function) and ensure uninterrupted operation of
the cooling system.
3) Requirements for output cable cooling system:
Rate of liquid flow: 1.7-2.0 L/min;
Pressure of liquid flow: < 0.6 MPa at the inflow;
Type of liquid exchange junction: SMC MS-5H-6:
Type of tube: outer diameter ϕ6; inner diameter ϕ4;
Direction of cooling liquid: unidirectional; connect the tube with the water-pipe strictly
according to direction shown on the layer of the tube;
Type of liquid: de-ionized water, condensed water, pure water;
PH value of liquid: 5.5 - 9;
Filter is needed for the cooling system, and the size of the solid residual practicals should
be within 100um;
Maximum temperature of liquid: 45℃:
Minimum temperature of liquid: greater than the saturated dew-point 5℃;
Additive to the liquid: satisfies the requirements of PH value and size of solid residual
practicals as above;

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
Radius of the bending of the armored pipe: off-work state (i.e. transportation and
reservation): minimum radius of bending ≥20 cm; in-work state: minimum radius of
bending ≥30 cm;
Long-term vibration < 2 G; Impact action < 10 G.
4) Other requirements for chiller:
When starting the cooling system for the first time, check the entire water system and the
joint for water leakage. The external water pipe must be installed and connected
according to the inlet (IN) and outlet (OUT) by the laser. Otherwise, the laser may not
work properly.
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 strictly accordance with
the requirements above. Too low temperature may lead to condensation on
the laser module and the output cable. This can cause serious damage to
the equipment.
CAUTION: Make sure that the water temperature reaches the set point
and the cooling system is working well before you start the laser.
〖summer：25±1℃（RFL-C1500X、1500H/C2000X、2000H）；
winter：25±1℃〗
3.4 Installation Procedure
(1) Place the product in an still and stable position;
(2) Check if the power supply has the correct voltage (See Table 5 for the laser model and
corresponding input voltage ), and the earth line is connected, make sure it is firm and
reliable;
(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;

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
(5) Check the output head and clean it if necessary. This procedure must be performed by
personnel of Raycus or authorized by Raycus. Make sure the environment is clean, or the
output cable may be contaminated.
(6) Prevent the delivery cable from treading, pinching or excessive bending during
installation;
(7) During the installation and disassembly process, please take care to handle the laser
output head gently, avoiding any shock;
(8) In the installation of laser output cable and output head process, please make sure that the
surrounding environment is clean, otherwise it may pollute the output head (do not use
fans, which actually may bring more dust);
(9) The minimum bending radius of the output fiber cable of the laser should not be less than
20 cm under the non-working conditions, and the minimum bending radius should not be
less than 30 cm when the laser is working.
CAUTION:
All the cables can only be connected when power supply is OFF. Hot
plug may damage the laser.
CAUTION:
The laser output optical cable should be kept as natural as possible and
not be distorted.
The too small bending radius of the output fiber cable will damage the
laser.
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.

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
4 Using the Product
Raycus CW fiber laser has stopped using the
HyperTerminal, so the HyperTerminal will not work when the
laser is powered on. Please clip the address below to download
the latest PC software and the relevant manual.
4.1 Front Panel
Figure 4 shows the front panel of RFL-C1500X、1500H/C2000X、2000H(take RFL-C2000X
for example).
Figure 5 Front Panel of C1500X、1500H/C2000X、2000H
1. REM/OFF/ON: Key switch, the power switch of the laser. Insert the key; either turning
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 Control Mode for more details.
2. POWER: Power Indicator, GREEN, indicates that the power is switched on.
3. LASER: Laser emission indicator, RED, illuminates when laser emission is on.
4. ALARM: Alarm indicator, YELLOW, indicates an error condition.

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C1500/C2000
5. START: Laser emission button, it’s a button with a ring-shaped LED indicator (red
color). The product is ready to emit laser and the red light turned off, when this button is
pressed down. Press again will release the button, and disable the laser emission.
6. EMERGENCY STOP: Press it down to stop the laser immediately. When the button is
in the ‘down’ position, 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 of RFL-C1500X、 1500H/C2000X、 2000H (take RFL-C2000X
for example):
Figure 6 Rear Panel of RFL-C1500X、1500H/C2000X、2000H
1. AC INPUT: The socket for supply source input that can only be mated with the plug on
the power cord we provided.
2. POWER: Air switch to control the switching of AC.
3. CTRL-INTERFACE: Control interface, this interface is a male CTRL-INTERFACE
24 pins connector and it’s multi-functional. The end users can set the control mode and
input analog control signal with the interface, as well as get the fault signal from it.