Raycus RFL-C8000S User manual

1
Continuous-Wave Fiber Laser
User Guide
RFL-C8000S
Wuhan Raycus Fiber Laser Technologies Co., Ltd

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C8000S
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.............................................................................................................5
2 Product Description....................................................................................................................6
2.1 Features..............................................................................................................................6
2.2 Package Contents...............................................................................................................6
2.3 Unpacking and Inspection................................................................................................. 6
2.4 Operation Environment..................................................................................................... 7
2.5 Precautions for Use............................................................................................................8
2.6 Specifications.....................................................................................................................9
3 Installation.................................................................................................................................11
3.1 Dimensions...................................................................................................................... 11
3.2 Output Head and Installation........................................................................................... 12
3.3 Cooling Requirements..................................................................................................... 12
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 Functions of the clientware..............................................................................................24
4.8 Control Modes................................................................................................................. 34
4.9 Guide laser control...........................................................................................................38
4.10 The Programming Mode (Waveform Editing).............................................................. 38
4.11 Laser timing diagram.....................................................................................................46
4.12 Modulation signal requirements.................................................................................... 47
4.13 Steps of shutting down.................................................................................................. 47
5 Alarms and Solutions............................................................................................................... 48
5.1 Alarms Display................................................................................................................ 48
5.2 Alarm solutions................................................................................................................48
6 Warranty, Return and Maintenance...................................................................................... 50
6.1 General Warranty.............................................................................................................50
6.2 Limitations of Warranty.................................................................................................. 51
6.3 Service and Repair...........................................................................................................51

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C8000S
3
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 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 8000W (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.
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.

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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-C8000S
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

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C8000S
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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.
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.

6
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
Slow rise and slow fall, Waveform editing
Maintenance free operation
High wall plug efficiency
Applications:
Cutting, Welding
3D Printing
Scientific research
2.2 Package Contents
Please refer to the packing list accompanying the shipment to check actual items included.
2.3 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.

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C8000S
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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.
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.
2.4 Operation Environment
The basic operation conditions are listed in the table below:
Table 2 Basic Operation Conditions for the Laser
Model
RFL-C8000S
Supply Voltage(V)
380±15%Vac，50/60Hz
Supply Capacity(kW)
>22
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.

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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.(see
Table 3)
Table 3 The Constant Dew Point Table
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 than22℃ and exceeds the
laser cooling water temperature by 22℃, there must bedew condensation,
and measures must be taken.
Measure 1: Dehumidifier works for 10-15 minutes in standby mode(laser
power and cooling water should be on state );
Measure 2: Installing cabinet air conditioner to reduce ambient
temperature.
2.5 Precautions for Use
1) Before supplying the power to the device, make sure that the correct voltage of the AC
power source is used. Failure to connect power source correctly will damage the device;

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C8000S
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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.
2.6 Specifications
The specifications are listed in the following table：
Table 4 Specifications
Number
Index
Condition
Minimum
value
Standard
value
Maximum
value
Unit
Fiber technical index
1
Operation Mode
Nominal Output
Power
Continuous Wave / Modulated
2
Nominal Output
Power
Water
Temperature
22±1℃
8000
8050
8100
W
3
Emission Power
Range
Nominal Output
Power
10
100
%
4
Emission
Wavelength
Nominal Output
Power
1075
1080
1085
nm
5
3dB Spectral
width
Nominal Output
Power
4
6
nm
6
Long-term
power stability
Nominal Output
Power
±1.5
%
7
Modulation
Frequency
Nominal Output
Power
1
5000
Hz
8
Duty ratio Range
Nominal Output
Power Pulse
1
100
%

10
width≥160μs
9
Red Guide Laser
Power
/
0.5
1
mW
QBH Optical index of output optical cable
10
Fiber Core
Diameter
/
50
μm
/
100
μm
11
Beam Quality
(BPP)
50μm Fiber Core
1.5
2
mm×mrad
100μm Fiber Core
3
4
mm×mrad
12
Fiber NA
50/100μm Fiber
Core
0.2
/
13
Fiber Delivery
Cable Length
50μm Fiber Core
20
20
m
100μm Fiber Core
20
30
m
Other technical indicators
14
Operating
Voltage
Nominal Output
Power
Three-phase four-wire system 50/60Hz，
380±15%
VAC
15
Way to Control
/
AD/RS-232/Ethernet
16
Power
Consumption
Nominal Output
Power
20
kW
17
Water flow
requirement
Nominal Output
Power
72
L/min
18
Water
Temperature
requirement
Nominal Output
Power
21
22
23
℃
19
Dimension
W×D×H
560×990×1100
mm
20
Weight
220
250
kg
21
Operating
Ambient
Temperature
/
10~40
℃
22
Operating
Ambient
Humidity
/
30~70
%
23
Storage
Temperature
/
-10~60
℃

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C8000S
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3 Installation
3.1 Dimensions
Figure 2 shows dimensions of RFL-C8000S.
Figure 2 (a) Front and Rear panel view (unit: mm)
Figure2 (b) Top and Side view (unit: mm)

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3.2 Output Head and Installation
The laser output head of RFL-C8000S is the standard QBH interface. The specific
appearance and dimensions are shown in Figure 3 above. Compared with other models, the size
of the protective end cap of the fiber delivery cable of this model is lengthened.
Figure 3 Dimensions of the RFL-QBH fiber delivery cable (unit: mm)
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 5 Cooling Requirements
Model
RFL-C8000S
Cooling Capability(W)
>20000
Minimum Flow(L/min)
72
Maximum Pressure(Bar)
7
Pipe Inner Diameter(mm)
25
Water temperature of cooling system (℃)
22±1℃
1) The water temperature setting of cooling system:
22±1℃
2) Cooling system filter access requirements:

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C8000S
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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-C8000S
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-C8000S laser, as shown in Figure 5.
Figure 5 The water inlet filtration module is connected to the watercooling 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.
3) Cooling water requirements:

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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.
4) 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 diameter6; inner diameter4;
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;

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C8000S
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Long-term vibration < 2 G; Impact action < 10 G.
5) 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 in an still and stable position;
2) Check if the power supply has the correct voltage (See Table 4 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;

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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- RFL-C8000S
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4 Using 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-C8000S：
Figure 6 Front Panel of RFL-C8000S
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 (short-connect the Pin 8 and Pin 9 of Table 7) 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 to4.8 Control Mode for more details.
2. POWER: The control system power, GREEN, indicates that the control system is
switched on.

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3. LASER: Laser emission indicator, RED, illuminates when laser emission is on.
4. ALARM: Alarm indicator, YELLOW, indicates an error condition.
5. 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 7 shows the rear panel of RFL-C8000S:
Figure 7 Rear Panel of RFL-C8000S
1. AC INPUT: The socket for supply source input that can only be mated with the plug on
the power cord we provided (See Table 4 product technical parameters for laser model
and corresponding input voltage). Please use only the enclosed power cord provided by
Raycus.
2. POWER: Air switch to control the switching of AC.
3. CTRL-INTERFACE: Control interface, CTRL-INTERFACE interface (DB-25),
multi-function multiplex interface, users can set control mode, input analog voltage
signal, modulate 24V signal, and it is also an alarm signal output interface.

Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL- RFL-C8000S
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4. WATER: Pipe connectors, the inlet and outlet for cooling water to flow in and return.
(See Table 5 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. DRAIN：The built-in dehumidifier has a drainage interface, the built-in dehumidifier
works to condense the water and moisture inside the cabinet into water droplets for
discharge.
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 2 or 4.
Table 6Power Connection Requirements
Model
RFL-C8000S
Supply Source
380±15% V AC 50/60Hz
Power Cord
One End of Power Cord
8 wires, each 2 wires are multiplexed, and the diameter of
single wire is 4mm2, Four wires labeledL1，L2，L3and PE.
Sign Description
L1，L2，L3-> Phase Line
PE-> Protective Earth
Note
One end of the power cord is a plug, insert it into the socket
'AC INPUT' on the rear panel. Notice that the plug is
wrong-side preventing. After inserting it, lock it with the
lever.

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4.4 Interface Definitions
4.4.1 CTRL-INTERFACE Definitions
The CTRL-INTERFACE(DB-25) is for laser control, the designation and definition is
below：
Figure 8 CTRL-INTERFACE
Table 7 Definitions of 24 pin Ctrl Interface
PIN
No.
Name
LineMark
Type
Level
Drive
Current
Typical
Respons
e Time
Description
1
Interlock2A
ITL-2A
Contact
Closure
Input
---
---
<500ms
“EN954-1” or”ISO13849-1
Cat.3PLd”.
Passive contact, not
connected to external voltage
or grounding.
2
Interlock1A
ITL-1A
3
Interlock1B
ITL-1B
4
Interlock2B
ITL-2B
5
RS232Tx
TX
---
---
---
120ms
Transmit Data
6
RS232Rx
RX
---
---
---
Receive Data
7
RS232Com
GND
Return
---
---
RS-232 Return
8
Remote Key
Switch
RPA
Contact
Closure
Input
---
---
<1s
Activates the internal
control system power supply
in REM mode. Passive
contact, not connected to
external voltage or
grounding.
9
RPB
10
Remote Start
Button
START-A
Instantaneous
Contact
Closure Input
---
---
<1s
In REM mode, start the laser
main power supply. Passive
contact, not connected to
external voltage or
grounding.
11
START-B
12
Analog Input to
Control Current
1-10V
Analog Input
1-10VDC
1 mA
100us
Analog Input 1-10 VDC=
10 – 100% Setpoint
13
Analog Output
Power Monitor
AOUT
Analog
Output
0-8VDC
11mA
100µs
Analog Output 0-8 VDC
(Refer to factory inspection