Raycus RFL-DDL Series User manual

RFL-DDL
Fiber Delivered Direct Diode
Lasers User Guide
Wuhan Raycus Fiber Laser Technologies Co., Ltd

Table of Content
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...............................................................................................................4
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............................................................................................7
2.4 Operation Environment ...............................................................................................7
2.5 Precautions for Use......................................................................................................8
2.6 Specifications ...............................................................................................................8
2.7 Installation....................................................................................................................9
3. Using the Product .................................................................................................................11
3.1 Front Panel.....................................................................................................................11
3.2 Interface Definition....................................................................................................13
3.3 Rear panel function....................................................................................................15
3.4 Laser control mode ....................................................................................................16
4. Common Faults and Treatment............................................................................................27
5. Warranty and Repair Process...............................................................................................28
5.1 General warranty...........................................................................................................28
5.2 Limitation of the warranty.........................................................................................28
5.3 Technical Support and Product Maintenance ...................................................................29

1.Safety Information
Thank you for choosing Raycus Fiber Delivered Direct Diode 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: Describes a hazard that lead to a personal
injury or death.
CAUTION: Describes a hazard that lead to a minor personal
injury or product damage.
1.2 Laser Classification
According to the national standard GB 7247.1, clause 9, this type of laser is a class 4 laser
instrument. The product emits laser radiation with a wavelength of 915nm or around 915nm,
and the optical power radiated by the output head is 100W (100W is used as an example, the
same below). Direct or indirect exposure to such light intensity can cause damage to the eyes
or skin. Although the radiation is invisible, the beam can still cause irreversible damage to the
retina or cornea. Appropriate and certified laser safety glasses must be worn at all times when
the laser is running.

Make sure to wear laser safety glasses during the
operation of the product. Laser safety glasses have laser
wavelength protection selectivity, so users are requested
to choose laser safety glasses that are separate from the
laser output of the product. When the laser is energized
(regardless of whether it is in the light-emitting state), you
cannot also directly watch the output head.
1.3 Safety Labels
These safety signs include: safety warnings, laser output head warnings, product nameplates,
etc.
The Danger of
Laser Radiation
Product Nameplate
Strong Electric Hazard
1.4 Optical Safety
If there is dust on the lens of the laser output head, the lens will be burnt when the light is
emitted.
Do not output laser without opening the protective cap of
the laser output head, otherwise the lens or crystal of the
laser output head will be burned.

1.5 Electrical Safety
1) Please ground the product through the PE wire in the power cord, and ensure that the
grounding is firm and reliable.
WARNING: Describes a hazard that lead to a personal
injury or death.
2) If the internal fuse of the laser is damaged and the laser cannot work normally, please do
not try to open the product cover, otherwise it may cause electric shock injury and the warranty
will be invalid. Please contact Raycus technical staff to provide relevant information and
technical support.
3) Ensure that the DC voltage supply is normal.
Wrong wiring or power supply voltage will cause
irreversible damage to the laser.
There are no components in the product that need to be used by the operator, please do not
try to open the product cover, otherwise it may cause electric shock injury, and the warranty
will be invalid.
1.6 Other Safety Rules
(1) Never look 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) Do not remove the covers of the laser, or the warranty will be void. All maintenance must be
performed in Raycus or by qualified Raycus personnel.
2.Product Description
2.1 Features
Raycus Fiber Delivered Direct Diode laser is designed for industrial and scientific research
applications with high pump conversion efficiency, low power consumption and excellent beam
quality.
It is compact and ready to use. Because of its flexible laser output mode, it can be easily
integrated with system equipment.
Main Features
•Flexible optical fiber output
•High reliability, long life
•Maintenance-free operation
•High photoelectric conversion efficiency
•Diversified control methods
Applications
•Laser plastic welding
•Laser soldering
•Laser research
2.2 Package Contents
Please refer to the packing list in the box.

2.3 Unpacking and Inspection
Raycus uses specially designed packaging materials and boxes to ensure that the laser is always
fully protected during transportation. Nevertheless, in order to prevent unpredictable situations
during transportation, the user still needs to carefully check whether the packing box is placed
correctly before opening the box, and whether there is any damage or phenomenon such as
collision, cracking, and flooding on the outside of the box. Once you find any abnormality in the
external cabinet, please notify Raycus to deal with the armor as soon as possible.
After unpacking, please check whether the packing list is consistent with the actual items. If you
have any questions, please contact Raycus in time.
Take care to avoid collision or severe vibration to the laser when taking out the laser. When
taking out the coiled output optical cable and laser output head, pay special attention not to
twist, bend, or pull, and avoid collision and vibration of the laser output head.
The output optical cable and output head of the laser are
precision optical devices. Twisting or excessive bending of
the output optical cable, vibration and impact of the laser
output head will cause irreversible damage to the laser.
2.4 Operation Environment
Table 1 Operating environment of laser
Place the environment
Flat, no vibration and shock
Working temperature
0℃～40℃
Working environment humidity
＜70%
We recommended to install the laser in an air-conditioned environment to make the laser run
under the best conditions.

2.5 Precautions for Use
1) Before connecting the laser to the DC power supply, make sure that it is connected to the
correct 24VDC voltage. Wrong connection to the power supply will cause irreversible damage
to the laser;
2) When the laser is running, don’t install or remove the output head;
3) Do not look directly at the output head, make sure to wear laser protective glasses when
operating the machine;
4) When not using the laser, please cover the protective cap and do not touch the output
terminal. When necessary, use special lens paper and alcohol to clean the lens;
5) The loss of optical power may be caused by incorrect operation in accordance with the above
specifications. Such loss will not be covered by the warranty;
6) Do not operate the laser in accordance with the control or adjustment methods specified in
this manual, which may cause damage.
2.6 Specifications
The specifications are listed in the following table.
Model
RFL-FDDL100X
RFL-FDDL80X
RFL-FDDL50X
Input power /W
>600
>500
>300
V DC
24VDC±10%
Continuous output
power rate/W
>100
>80
>50
Power instability
≤1%
Wavelength range
/nm
915±10nm，Other wavelengths can be customized
Indicating laser
650±10nm ， 0.25 ～ 1mW

parameters
Fiber core
diameter /um
200
105/200
Fiber NA
0.22
Output interface
type
SMA905/D80
Control interface
DB25、DB9
Control Method
External control、RS232
Modulation pulse
frequency
1Hz ～ 10KHz
Cooling
Air-cooled
Operating
temperature
0 ～ 40 ℃
Note:
*RFL-A100D/B/5/B/T——model coding rules
100——100W Output ， B——915nm wavelength ， 5——5 meters output optical cable,
B——SMA905 output optical cable (C——D80 output optical cable), T——air cooling.
2.7 Installation
2.7.1 The whole machine adopts a professional customized chassis, and the appearance of the
laser:

Overall dimensions: depth × width × height 340 × 260 × 130mm (including the rear panel fan,
excluding the output cable bending size).
2.7.2 Laser shape and installation dimensions
2.7.3 Installation considerations
1) Place the laser horizontally in a well-ventilated position and fix it;
2) Before powering on the laser, please check whether the DC power supply of the laser is at
the required voltage;
3) Correctly connect the power line and control signal line of the laser in the uncharged state;
4) Please check the laser output head and make necessary cleaning according to the
specifications, and then install it in the equipment;
5) Do not step on, squeeze or excessively bend the metal armored protective tube during the
installation of the jumper to avoid damage to the optical fiber;
6) Ensure that the surrounding environment is clean during the installation of the jumper output
head, otherwise the output head may be contaminated (do not turn on the fan during the
installation of the output head, so as to avoid large dust in the air);
7) The minimum bending radius of the laser transmission cable in non-working conditions such
as transportation and storage should not be less than 10cm, and the minimum bending radius
should not be less than 15cm when the laser is emitting light.

All control lines of the laser should be connected in a non-
powered state. Installing the control lines with power may
damage the laser.
The placement of the laser output cable must be as natural
as possible, and it is forbidden to twist the output cable.
If the coil diameter of the output cable is too small, the
laser will be damaged.
During the installation and disassembly process, please
handle the laser output head gently, and do not subject it
to vibration or impact.
Before assembling the output head, ensure that the optical
lens and the welding head cavity are clean and free from
pollution.
Please keep the protective cap of the output head properly
to prevent it from being contaminated; otherwise, it will
cause indirect pollution to the output head when the
protective cap is closed.
3. Using the Product
3.1 Front Panel
3.1.1 Laser front panel:

① Power interface-24VDC power input interface; M16 cable connector is adopted.
Laser power cord:
1: +24V brown wire; 2: GND blue wire; 3: PE yellow-green wire (ground wire must be connected)
② Optical cable outlet-laser optical cable output port;
③ Working status indicator:
PO (power indicator light)-the green indicator light is on after the laser is powered on; IN
(interlock indicator light)-the green indicator light is on when the interlock signal is connected;
SI (signal indicator light)-when the external control mode inputs the correct EXT Laser EN,
EXT_MOD and EXT_ADC, the green indicator light is on when the internal control mode MCU
gives the correct output power signal;
LA (light emitting indicator)-the green indicator light is on when the laser emits light;
LD (abnormal light output alarm indicator)-the red indicator light is on when the laser light is
abnormal; IO (drive alarm indicator light)-the red indicator light is on when the laser is driving
alarm;

TM (temperature alarm indicator)-the red indicator light is on when the laser temperature
exceeds the set range; TE (temperature control alarm indicator)-the red indicator light is on
when the temperature control alarms.
④ RS-232 interface-connect an external serial cable for laser working mode setting, operation
control and working status monitoring.
⑤ DB25 interface-connect an external cable for laser working mode setting, operation control
and working status monitoring.
3.2 Interface Definition
3.2.1 DB25 control interface
DB25 is a multi-function multiplex port. The user can set the laser working mode, input analog
voltage signal, and is also the output port for light signal and fault signal.
PIN
Name
Function
Voltage
electric
1
Interlock+
Input
Chain signal+
Enable
0V
/
Prohibition
Hanging
/
2
EXT Laser EN
Input
External control light
Enable
5V
<1mA
Prohibition
0V
/
3
MODE_CHS
Input
Internal and external
control mode
selection
External
control
5V
<1mA
Internal
control
0V
/

4
Ext ADC
Input
External control
power given analog
quantity
/
0V ～
10V
<1mA
5
② EXT_ON/OFF
Input
External control main
power switch
Enable
0V
/
Prohibition
5V
<1mA
6
Ext Foot EN
Input
Pedal enable
Enable
5V
<1mA
Prohibition
0V
/
7/19
EXT_+5V
Output
+5V
/
5V
<50m A
8
③ Ext Red Always
Input
External control red
light forced enable
Enable
5V
<1mA
Prohibition
0V
/
11
④ ALARM-COM
Output
Alarm signal relay
common node
/
/
/
12
④ ALARM-NO
Output
Alarm signal relay
normally open node
/
30V
<200m
A
13
④ EXT Laser-NC
Output
Light emitting signal
relay normally closed
node
/
30V
<200m
A
14
Interlock-
Groun
d
Chain signal
/
/
/
16/1
8
+24V_GND
Groun
d
External control
signal ground
/
/
/
15
Ext_MOD
Input
External control
modulation signal
Enable
5V
<1mA
Prohibition
0V
/
17
① Ext_Red_EN
Input
External control red
light enable
Enable
5V
<1mA
Prohibition
0V
/
23
④ ALARM-NC
Output
Alarm signal relay
normally closed node
/
30V
<200m
A
24
④ EXT_Laser-COM
Output
Light emitting signal
relay common node
/
/
/
25
④ EXT Laser-NO
Output
Light emitting signal
/
30V
<200m

relay normally open
node
A
Other
Reserved
No access
Note:
①Ext Red EN: When this signal is high, the laser will output red light; when the laser is
outputting laser, it will automatically cut off the red-light output. When this signal is low,
the laser will not output red light.
②EXT_ON/OFF: External control on/off control signal of laser main power supply. When the
signal is low or suspended, the laser works normally; when the signal is high, the main power
supply of the laser does not work and the laser is in the standby state.
③Ext Red Always: This signal is a combined signal; when this signal is at high level and EXT Red
EN is at high level, the laser always keeps red light output.
④The light signal and alarm signal are relay output, providing passive normally open and
normally closed nodes.
3.2.2 DB9 serial port control interface
DB9 serial port control interface, interface pin definition:
RS-232 serial port definition
Pin number
Definition
2
RX
3
TX
5
GND
Other
NC
3.3 Rear panel function
Laser rear panel:

1
①Cooling fan group
3.4 Laser control mode
The laser has 2 control modes: external control AD mode and RS232 mode. How to choose laser
control mode:
3.4.1 External control AD mode
External control AD mode: The output power is controlled by the input analog voltage, and the
light output is controlled by the Ext MOD modulation signal and the light enable EXT Laser EN
signal.
There are two working modes in external control AD mode: continuous working mode and pulse
working mode. These two working modes are set by external signals, and then external signals
are input according to the selected mode.
3.4.1.1 Continuous working mode

In the continuous working mode, the output power of the laser is controlled by the external
analog input 0～10VDC, and the laser is turned on or off by the external control light enable
signal to realize the continuous output of the laser power. Continuous work mode wiring:
Sequence of continuous working mode:
3.4.1.2
In pulse working mode, the output power of the laser is controlled by the external input analog
0～10VDC, and the laser is turned on or off by the external control Ext MOD signal and the light
enable EXT Laser EN signal to realize the laser power output.
The wiring diagram of pulse working mode is the same as that of continuous working mode.
Pulse working mode timing:

The pulse working mode touch screen interface is the same as the continuous working mode.
3.4.2 RS232 mode
RS232 mode: The PC controls the laser operation through serial communication, including
setting parameters, obtaining laser status, and alarm information.
RS232 mode wiring:
RS232 mode has three working modes: continuous working mode, modulation working mode
and customized working mode.
6 groups of parameters can be set in continuous working mode: power.
6 groups of parameters can be set for modulation working mode, including power, frequency,
and duty cycle.
The custom working mode can be set to 6 groups, each with 16 segments of parameters,
including the power and time of each segment.
Serial communication protocol:

RS232 mode serial communication protocol
Number
Function
Frame
header
instruc
tion
Set data
Tail
frame
Return data
(Hexadecimal)
1
Read the ambient
working humidity
AA
A1
00,00,00,01
E0
D1 02 00 X X F0
2
Read the ambient
working temperature
AA
C1
00,00,00,01
E0
D1 01 00 X X F0
3
Read the radiator
alarm temperature
AA
C2
00,00,00,00
E0
D2 00 X X F0
4
Read LD alarm
temperature
AA
C3
00,00,00,00
E0
D3 00 X X F0
5
Set LD enable and
power value (current
group in continuous
mode)
AA
A4
X,X,X,X
E0
B4 F0
6
Read current group LD
power in continuous
mode
AA
C4
00,00,00,00
E0
D4 X X F0
7
Set custom mode X
group Y segment power
AA
A5
X,X,X,X
E0
B5 01 F0
8
Read custom mode X
group Y segment power
AA
C5
X,X,00,00
E0
D5 X X X X F0
9
Set custom mode X
group Y segment time
AA
A6
X,X,X,X
E0
B6 01 F0
10
Read custom mode X
group Y segment time
AA
C6
X,X,00,00
E0
D6 X X X X F0
11
Set working mode
AA
A7
00,00,0,X
E0
B7 F0
12
Read working mode
AA
C7
00,00,00,00
E0
D7 01 F0
13
Read system status
AA
A9
00,00,00,00
E0
B9 00 F0
14
Save parameters
AA
AA
00,00,00,01
E0
BA F0

15
Save parameters
AA
AB
00,00,00,55
E0
BB F0
16
Set current group LD
power in continuous
mode
AA
AC
0,0,X,X
E0
BC F0
17
Read the system
version number
AA
E9
0,0,0,0
E0
E9 56 32 2E 31
2E 33 F0
18
Read current time
AA
EA
0,0,0,0
E0
EA 19 07 05 14
54 36 F0
19
Set current group
power of modulation
mode
AA
AE
0,0,X,X
E0
BE F0
20
Read current group
power of modulation
mode
AA
CE
0,0,0,0
E0
DE X X F0
21
Set the current group
frequency of
modulation mode
AA
AF
0,0,X,X
E0
BF F0
22
Read current group
frequency of
modulation mode
AA
CF
0,0,0,0
E0
DF X X F0
23
Set the current group
duty cycle of
modulation mode
AA
A8
0,0,X,X
E0
B8 F0
24
Read the current group
duty cycle of
modulation mode
AA
C8
0,0,0,0
E0
D8 X X F0
25
Read failure times
AA
E1
0,0,0,0
E0
E1 X X X X X X F0
26
Set sleep/start mode
AA
E2
0,0,0,X
E0
E2 X F0
27
Set custom mode
AA
E3
0,0,0,X
E0
E3 X F0