Raycus RFL-C4000S User manual

1
Continuous-Wave Fiber Laser
User Guide
RFL-C4000S
Wuhan Raycus Fiber Laser Technologies Co., Ltd

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C4000S
2
TABLE OF CONTENTS
1 Safety Information .....................................................................................................................3
1.1 Symbols Used in this User Guide .....................................................................................3
1.2 Laser Classification...........................................................................................................3
1.3 Safety Labels.....................................................................................................................4
1.4 Optical Safety....................................................................................................................5
1.5 Electrical Safety ................................................................................................................5
1.6 Other Safety Rules ............................................................................................................6
2 Product Description ...................................................................................................................7
2.1 Features .............................................................................................................................7
2.2 Model Configuration.........................................................................................................7
2.3 Package Contents ..............................................................................................................8
2.4 Unpacking and Inspection.................................................................................................8
2.5 Operation Environment.....................................................................................................9
2.6 Precautions for Use .........................................................................................................10
2.7 Specifications ..................................................................................................................11
3 Installation ................................................................................................................................12
3.1 Dimensions......................................................................................................................12
3.2 Output Head and Installation...........................................................................................13
3.3 Cooling Requirements.....................................................................................................13
3.4 Installation Procedure......................................................................................................16
4 Using the Product.....................................................................................................................18
4.1 Front Panel ......................................................................................................................18
4.2 Rear Panel .......................................................................................................................19
4.3 Power Connection...........................................................................................................20
4.4 Interface Definitions........................................................................................................21
4.5 Steps of Installation.........................................................................................................24
4.6 Steps of Starting..............................................................................................................24
4.7 Functions of the clientware.............................................................................................25
4.8 The Programming Mode (Waveform Editing)................................................................29
4.9 Control Modes.................................................................................................................32
4.10 Steps of shutting down..................................................................................................37
5 Alarms and Solutions...............................................................................................................38
5.1 Alarms Display................................................................................................................38
5.2 Alarm solutions...............................................................................................................38
6 Warranty, Return and Maintenance......................................................................................40
6.1 General Warranty............................................................................................................40
6.2 Limitations of Warranty..................................................................................................40
6.3 Service and Repair ..........................................................................................................41

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C4000S
3
1Safety 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 general
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 power radiated from the laser is greater than
4000W (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.

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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-C4000S

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User Guide of RFL- RFL-C4000S
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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.

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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- RFL-C4000S
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2Product 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
➢Slow rise and slow fall, Waveform editing
Applications:
➢Cutting, Welding
➢3D Printing
➢Scientific research
2.2 Model Configuration
The series of Raycus continuous-wave fiber laser include1500W and 2000W, and the model
designation codes are illustrated in the following table:
Table 2 Model Names and Designation Codes
RFL-C 4000S/B/20/W
12 3 4 5

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1
RFL-C series, continuous-wave (CW) fiber laser
2
Power in watts:
4000S--4000W
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
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.

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User Guide of RFL- RFL-C4000S
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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
RFL-C4000S
Supply Voltage(V)
380±10%V AC 50/60Hz
Supply Capacity(kW)
13.6
Installation Requirements
Install on flat surface, no vibration or impact
Ambient Temperature(℃)
10~40
Relative Humidity(%)
30~70
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

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AMBIENT DEW POINT
Room
Temperature(℃)
Maximum Relative humidity
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
◆Green area: The dew point temperature is 22℃that is lower than the laser
cooling water temperature, which can be used safely；
◆Red area: If the dew point temperature is higher than 22℃and exceeds the
laser cooling water temperature by 22℃, there must be dew condensation,
and measures must be taken.
Measure 1: Refering to section 4.2, connect clean and dry air from CDA port
to reduce relative humidity.
Measure 2: Installing cabinet air conditioner to reduce ambient temperature.
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;

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C4000S
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(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
Table 5 Specifications
Table 6 Product SpecificationsModel
C4000S
Test Conditions
Optical Specifications
Nominal Output Power (W)
4000-4200
Operation Modes
CW/Modulated
Polarization State
Random
Output Power Tunability(%)
10~100
Emission Wavelength(nm)
1080±5
Nominal Output Power
Output Power Instability(%)
±1
Nominal Output Power
Operation Time：≥5h
Ambient Temperature: 22±1℃
Modulation Frequency(Hz)
1~5,000
Minimum laser pulse
width>160us
Red Guide Laser Power(mW)
0.5~1
Optical Output Characteristics of QBH head
Beam Quality(mm×mrad)
1.5~2
Nominal Output Power
Fiber Core Diameter(μm)
50
Diameter customizable
Numerical Aperture
0.2
Delivery Cable Length(m)
20
Length customizable
Electrical Characteristics
Power Supply
380 ± 10% V AC、50/60Hz
Max. Power Consumption(W)
12500
Control Mode
RS-232/AD/Ethernet
Other Characteristics
Dimensions(W×H×D)（mm）
1102X447X250 (include. handles))
Weight(kg)
<80
Operating Ambient Temperature (℃)
10~40
Humidity (%)
30~70
Storage Temperature (℃)
-10~60
Cooling Method
Water Cooling

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3Installation
3.1 Dimensions
Figure 2 shows dimensions of RFL-C4000S.
Figure 2 (a) Front panel view of RFL-C4000S (unit: mm)
Figure2 (b) Rear panel view of RFL-C4000S (unit: mm)
Figure2 (c) Top and Side view of RFL-C4000S (unit: mm)

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C4000S
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3.2 Output Head and Installation
Figure 3 Dimensions of iQB Output Head
The QBH and iQB laser output head of RFL-C4000S 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 6 Cooling Requirements
Model
RFL-C4000S
Cooling Capability(W)
>10000
Minimum Flow(L/min)
40
Maximum Pressure(Bar)
7
Pipe Inner Diameter(mm)
25
Water temperature of coolingsystem (℃)
22±1℃
(1) The water temperature setting of cooling system:
22±1℃（RFL-C4000S）
(2) Cooling system filter access requirements:

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When the water quality of the laser cooling system is poor (more impurities), the laser water
path is easy to be blocked, causing flow alarm or high temperature alarm, resulting in laser
shutdown. In serious cases, the laser waterway will be scrapped. Therefore, RFL-C4000S
laser is equipped with water inlet filter module, as shown in Figure 4.
Figure 4 The inlet filter module
When the laser is installed and used, firstly connecting the water inlet filter module with the
water outlet of the customer's on-site cooling water system according to the water flow
direction indicated by the arrow in Figure 4, and then connect the water inlet filter module
with the water inlet of the RFL-C4000S laser, as shown in Figure 5.
Figure 5 The water inlet filtration module is connected to the water cooling system
When the laser is in use, cleaning the Y-type filter of the inlet water filter module periodically
according to the water quality of the cooling water system (openning the nut cover of the Y-
type filter, taking out the filter screen, cleaning it, reinstall it, and tightenning the nut cover).
It is recommended that the cleaning frequency be no less than once a week.
(1) Cooling water requirements:

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C4000S
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➢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.
(2) 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 6; inner diameter 4;
➢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 practical 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
practical as above;
➢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;

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➢Long-term vibration < 2 G; Impact action < 10 G.
(3) 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: Please clean the water inlet filter module in time. If the water
inlet filter module is blocked, the laser flow alarm or high temperature alarm
will be triggered.
CAUTION: Make sure that the water temperature reaches the set point and
the cooling system is working well before you start the laser.
〖summer：22±1℃；winter：22±1℃〗
3.4 Installation Procedure
(1) Place the product inan 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;
(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.

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C4000S
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(6) Prevent the deliverycable 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.

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4Using the Product
Please use the correct the latest PC software and the relevant
manual.
4.1 Front Panel
Figure 6 shows the front panel of RFL-C4000S：
Figure 6 Front Panel of RFL-C4000S
(1) REM/OFF/ON: Key switch, the control system 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 control system. Then the laser will enter a control mode
depending on your previous setup on the 'CTRL-INTERFACE'. You can refer to 4.9
Control Mode for more details.
(2) POWER: The control system power, LIGHT, indicates that the control system is
switched on.
(3) START: Laser main power button，GREEN，when this button is pressed down，the
laser is ready to emit laser.
(4) LASER: Laser emission indicator, RED, illuminates when laser emission is on.
(5) ALARM: Alarm indicator, YELLOW, indicates an error condition.

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User Guide of RFL- RFL-C4000S
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(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 shows the rear panel of RFL-C4000S:
Figure 7 Rear Panel of RFL-C4000S
(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 24-needles 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.
(4) WATER: Pipe connectors, the inlet and outlet for cooling water to flow in and return.
(See Table 6 for the laser model and corresponding water pipe size for cooling system
requirements)
(5) ETHERNET: Ethernet interface. It can provide remote control and storage alarm
information for the laser.
(6) CDA: Clean Dry Air input. Clean dry air is input here to prevent dew formation.

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The application of CDA:
If the CDA is provided by the customer, it must be cooled and dried by the dryer, then
filtered by 5μm-particle and 0.3μm-particle filter, and 0.1μm atomized lubricator. The
temperature of CDA must be in the range of 5~40℃, and the highest dew point is 0℃(It
is suggested the temperature of CDA is 5℃below the temperature of cooling water).
The pressure of CDA is below 0.1 MPa, the flow rate is 10 LPM, and the outer diameter
of pipe mated with the connector is 6mm.
If the CDA filter module provided by Raycus is used, the CDA should be also cooled and
dried by the dryer, and the pressure should be below 0.8MPa, the outer diameter of pipe
mated with the connector is 6mm.
The CDA should be input 30 min before the start of the laser. If the ambient temperature
is below 25℃and the humidity is below 50%, the CDA is unnecessary.
4.3 Power Connection
CAUTION: Before connecting the product to AC supply source, you must
check for sure that the AC supply you will apply is in accordance with the
specifications provided in Table 3.
Table 7 Power Connection Requirements
Model
RFL-C4000S
Supply Source
380±10% V AC 50/60Hz
Power Cord
One End of Power Cord
Four wires labeled L1，L2，L3and PE.
Sign Description
L1，L2，L3-> Phase Line
PE-> Protective Earth