Raycus RFL-P20MB User manual

编号
RFL-P20MB
密级
阶段标记
页数
11
名称
RFL-P20MB
脉冲光纤激光器英文使用说明书
会签
单位
第二事业部
编写
朱军
校对
李科
审核
施建宏
标审
李其军
批准
黄保
武汉锐科光纤激光技术股份有限公司

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
Ytterbium Pulsed Fiber Laser
User’s Guide
RFL-P20MB
Wuhan Raycus Fiber Laser Technologies Co., Ltd.,2018
Proprietary information. All rights reserved
Issued 19 October 2018

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
Safety Information
Please read this instruction carefully and familiarize yourself with the information we have
provided before you use the product. In this brochure, important operation procedures, safety and
other information are provided for you and all future users. In order to ensure operating safely
and optimal performance of the product, please do according to following warnings, cautions and
other information.
Raycus pulsed fiber laser is classified as a high power Class IV laser device. Before supplying
the power to the device, please make sure that the correct voltage of 24VDC power source is
connected and the anode and cathode are right. Failure to connect power source correctly will
cause damage to the device.

The device emits invisible 1060~1085nm wavelength light with average power 20W. Do not
expose your eyes or skin to the radiation of the laser.

Do not take apart the device, because there are no replaceable accessories available for users
to use. Any maintenance can only be proceeded in Raycus.

Do not look into the light output end directly. Use appropriate laser safety eyewear when
operating the device.
Safety labels and locations
The two labels above is located on the top of the cover of the device, representing laser
radicalization.

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
Content
1.
Description...............................................................................................
1
1.1.
Product description.........................................................................................................
1
1.2.
Actual configuration list.................................................................................................
1
1.3.
Environmental requirements and cautions.....................................................................
1
1.4.
Specifications.................................................................................................................
2
2.
Mounting..................................................................................................
3
2.1
Mounting dimensions.....................................................................................................
3
2.2
Method of installation....................................................................................................
4
3.
Control Interface.....................................................................................
5
4.
Operation Regulations............................................................................
9
4.1
Pre-inspection.................................................................................................................
9
4.2
Operation procedures.....................................................................................................
9
4.3
Cautions........................................................................................................................
10
5.
Instructions for warranty, return and maintenance.........................
10
5.1
General warranty..........................................................................................................
10
5.2
Limitations of warranty................................................................................................
10
5.3
Service and repairs.......................................................................................................
11

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
1. Description
1.1. Product description
Raycus pulsed laser is an ideal high power laser source with high speed and high efficiency.
It is specially designed for industrial laser making system and other applications.
Compared with traditional lasers, pulsed laser has some unique advantages in increasing the
conversion efficiency of the pump light 10 times higher. Its low power consumption and
automotive design make it appropriate for operating both in and outside the lab. Besides, it is
exquisite and convenient for its independence in placement, free time in using and facility in
connecting to equipment directly.
The device can emit 1060~1085nm wavelength pulsed light under the control of industrial
laser’s standard interface driven by 24VDC power source.
1.2. Actual configuration list
Table 1. Configuration list
Items
Quantity
Remark
Fiber Laser module
1
1.3. Environmental requirements and cautions
Pulsed laser should be driven by 24VDC±1V power source.
1) Caution: Make sure the corresponding wires of the device are properly grounded.
2) All the maintenance to the device should only be done by Raycus, because there is no
replacement or accessory provided with the device. Please do not try to damage the labels or
open the cover in order to prevent against electric shock, or the warranty will be invalid.
3) The output head of the product is connected with an optical cable. Please be careful handling
the output head. Avoid dirt and any other contaminations. Please use the specialized lens
paper when cleaning the lens. Please lid the laser with protective cover of the light isolator to
be against dirt only when the laser is not installed in the device or not in working.
4) If the operating the device fails to follow this instruction, the protective function will be
weakened. Therefore, it should be used under normal conditions.
5) Do not install the collimating device into the output head when the laser device is in working.
1 /11

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
6) The device has three cooling fans at the rear panel to dissipate heat. In order to guarantee
enough airflow to help giving heat off, there must be a space of at least 10 cm’s width for
airflow in front and rear side of the device. As the cooling fans are working at blow condition,
if laser is mounted in a cabinet with fans, the direction should be same as laser’s fans.
7) Do not look into the output head of the device directly. Please do wear appropriate laser
safety eyewear during the time when operating the device.
8) Make sure the pulse repetition rate higher than 10 kHz.
9) For the longest time without pulse is only 100 us. If there is no pulse output, please stop
marking at once, to avoid further damage of the device.
10) Power source sudden interruption will do great harm to the laser device. Please make sure
the power supply works continuously.
1.4.Specifications
Table 2. 20MB pulsed fiber laser specifications
NO.
Characteristic
Min
Typ.
Max
Uni
Remark
1
Central Emission
Wavelength
1060
1064
1085
nm
/
2
Polarization
Random
/
3
Nominal Average Output
Power
20
21.5
23
W
/
4
Pulse Repetition Rate
10
500
1000
KHz
/
5
Single pulse energy
/
0.5@40kHz
/
mJ
/
6
Selectable pulse durations
2
/
350
ns
2-350ns are optional
7
Output Power Tunability
10
/
100
%
/
8
Long-term average power
instability
<3%@24hrs
%
9
Beam quality M2
/
1.3
/
/
M2
10
Output beam diameter
6
7
8
mm
1/e2
11
Guide Laser Power
Optional
/
12
Output Fiber Cable
Length
2
2
/
m
13
Anti Strong Back
Reflection
Yes
/
/
2 /11

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
14
Supply voltage
23
24
25
VDC
/
15
Power Consumption
/
/
150
W
@25℃
16
Cooling
Forced Air Cooled
/
17
Operating Temperature
0
/
40
℃
/
18
Store Temperature
-10
/
70
℃
/
19
Humidity
30
/
85
%
/
20
Laser module dimensions
286×215×95
mm
W×D×H
2. Mounting
2.1 Mounting dimensions
1) Fiber Laser module dimensions (As shown in Fig. 1).
Figure 1. Dimension drawing of laser module (Unit: mm).
2) Isolated output isolator (As shown in Fig. 2).
Figure 2. Dimension drawing of output isolator (Unit: mm).
3 /11

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
2.2 Method of installation
1) Fix the module stable to the bracket and keep the laser in good ventilation.
2) Connect the power line to 24VDC power and ensure enough DC output power. Keep it clear
to the polarity of the electric current: anode-brown; cathode-blue; PE-yellow and green. The
definition figure is shown in Fig. 3.
24V+ 24V—
Figure 3. Definition of power line wires
3) Make sure that the interface of the external controller matches the laser and the control cable
is well connected to the laser’s interface. The recommended electrical connection is shown in
Fig. 4.
Figure 4. Schematic of recommended electrical connection
4) The bending radius of the delivery fiber should not exceed 15 cm.
4 /11
GND

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
3. Control Interface
There are DB9 and DB25 interfaces at the rear of the laser. The DB9 is a RS232 interface
only used for debugging, no needs to connect. And DB25 is the joint interface connecting control
system to the laser system, please make sure the connection is reliable before operation. Feet of
the DB25 are defined as follows in Fig. 5.
Figure 5. Connect port of controller
Table 3 Definition of connect ports of controller
PIN No.
Name
Description
1-8 (D0-D7)
Power Setting
8 bits parallel port, D0 is minimum bit and D7
is maximum bit;
Range: 0-255 (hexadecimal: 0x00-0xFF);
0 is minimum power and 255 is maximum
power.
10,14
Ground
Digital GND
11,12,16,21
Laser alarms status
see alarm codes in the table 5
17
VCC
+5VDC power supply input for independent
operation of the guide laser and PCB
Emission Enable (EE) signal.
18
EE
HIGH: Emission Enable
LOW or disconnected: Emission Disable
Emission Modulation (EM) input.
19
EM
HIGH (>3V): Emission ON
LOW or disconnected (<1V): Emission OFF
20
Sync
Pulse
Repetition Rate
(Synchronization)
input, square wave.
22
Guide Laser signal
(pulse duration control enable signal )
Guide Laser (red diode) ON/OFF input.
Definition of pulse duration control is shown in
table 6.
9,13,15,23,24,25
Obligate PIN
Reserved
5 /11

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
1) The pump current of diode laser and the laser output power are controlled by setting the value
of PIN1-PIN8 (TTL level). PIN1-PIN8 can be set from 0～255，corresponding to the laser
output power from 0～100％(the actual laser power may not be strictly linear with the
setting value). The relationship between PIN value and output power is shown in Table 4:
Table 4 Definition of power control pins.
Setting 1
Setting 2
Setting 3
Setting 4
Setting 5
PIN 1
0
0
0
0
1
PIN 2
0
0
0
0
1
PIN 3
0
0
0
0
1
PIN 4
0
0
0
0
1
PIN 5
0
0
0
1
1
PIN 6
0
0
1
1
1
PIN 7
0
1
1
1
1
PIN 8
1
1
1
1
1
Current
~50 %
~75 %
~87.5 %
~93.75 %
100%
2) PIN 10 and PIN 14 are all digital GND.
3) PIN 17 receives external 5V DC voltage to provide power supply for alarm signal.
4) PIN 18 is the start signal of the MO. PIN19 is the input for the optical output signal. The
electrical level for both PIN18 and PIN19 are 5V. Before turning on PIN 19, MO signal must
be switched ON, in other word, the signal of PIN 18 must be ahead of PIN 19 at least 5 ms,
and otherwise the laser machine may be damaged.
5) PIN 20 provides control of the frequency. The frequency range should be 10 kHz~1000
kHz, depends on the varying power levels of different laser machines.
ATTENTION: The frequency signal must be ahead of the EM signal at least 5 ms,
otherwise the laser machine may be damaged.
Below figure shows DB25 sequence diagram:
6 /11

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
Figure 6 DB25 sequence diagram
T1：Represent the initialization time of the laser machine. The initialization time is less than
10s from power-on to perform initialization.
T2：Represent the pump recharge time, usually around 5ms.
T3：Represent the frequency switching time. Frequency needs to be adjusted before optical
laser output, and the switching time should not less than 5ms.
T4：Represent the pulse build-up time. Usually the build-up time is less than 200 us from
the pump current raising up to reach the 90% power of the optical pulse.
T5：Represent the pulse shut down time. Usually the shut down time is less than 100 us
from the pump current decliner to drop to the 10% power of the optical pulse.
6) Definition of alarm signal
Table 5 Definition of warning signal
PIN12
PIN11
PIN16
PIN21
Alarm content
X
Low
Low
Low
Laser Temperature
Warning
1
X
Low
Low
High
Normal
X
High
Low
Low
Abnormal State2
X
Low
High
High
Main Oscillator Error
3
PS 1：PIN 17 receives external DC voltage to provide power supply for alarm signal. Therefore,
please make sure PIN17 is connected to the +5V power supply. The temperature warning will
7 /11

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
remain if the power or DB25 port is not well connected.
PS 2: If the voltage or current states of the laser are abnormal, the alarm might present
“POWER ERR”due to using different marking card (for example: Beijing JCZ Technology Co.
marking card,).
PS 3: If the laser output system is abnormal, the alarm might present “SYSTEM ERR”
due to using different marking card (for example: Beijing JCZ Technology Co. marking card,).
7）Introduction of laser pulse duration control
PIN2, 3, and 22 on DB25 port not only used for the foundation control of the laser machine,
but also achieves the pulse duration control as the extender.
Table 6 Laser duration control signal
PIN
Name
Description
2
Serial input
The setting of the data bits synchronize with rising edge of the
serial clock.
3
Serial clock
Serial clock , frequency range: 10kHz～1MHz.
22
Pulse duration control
High：Enable，PIN2 and PIN3 control the pulse duration
Enable
Low or disconnected：Disable
The principle of the laser duration control is described as follows:
a) Marking machine send the command to the laser machine by the PIN2 on the DB25 port,
meanwhile send the clock signal to the PIN3. The comment is the binary form, and delivers the
most significant bit as the priority.
b) The order structure from marking machine to the laser machine is: 0xA5+instruction
code.
c) 0xA5（A5h）is the comment byte to active the laser pulse duration control port. 0xA5
and the following data will be directly sent as the serial input form to the PIN2 on the DB25 port.
d) The input data length is 4 bytes: the first byte of instruction code should be 0x01（01h）,
the second byte and the third byte are the value of the binary coding of laser duration (for
example: 200 is the decimal number of 0x00C8, represents the setting pulse duration is 200ns).
e) PIN22 is the Enable signal. The Enable should achieve high state at least 10us before
PIN2 and PIN3 changing. The Enable should achieve low state at least 10us after PIN2 and PIN3
changing. Figure 7 shows the adjustment process of laser duration control.
f) PIN19 should decrease to low state before adjusting laser pulse duration.
8 /11

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
Figure 7 Schematic of laser pulse duration adjustment（200ns）
For example, if using Beijing JCZ Technology Co. marking card to adjust laser pulse
duration, the setting processes are described as follows:
a) Make sure the power supply, DB25 cable, control card and computer are correctly
connected, and then turn on the 24V power supply.
b) Open Ezcad2.7.6 (or other version), then click ‘F3’, the configuration parameter should
show up, select ‘Fiber’ in category of the ‘Laser Control’ panel, follow that select ‘IPG_YLPM’,
and then close this window.
c) Pulse duration can be modified by the ‘Duration’ on the right side of the window. If the
setting duration is smaller than the limiting minimum value, the duration of output laser will be
2ns (minimum). If the setting duration is larger than the limiting maximum value, the duration of
output laser will be 200ns (maximum). If the setting duration within the range, the duration of
output laser will tend to the smaller side.
4. Operation Regulations
4.1 Pre-inspection
1) Make sure the device appearance is in good condition and the output fiber is neither
excessively bended nor broken.
2) Make sure signal line of laser and marking system are properly connected.
4.2 Operation procedures
1) Starting procedures
9 /11

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
Please make sure the control system is on before you turn on the fiber laser. Only after at
least 1 minute since the power turned on, the subsequent operations can be proceeded.
2) Frequency set introductions
The frequency setting range is from 10 kHz to 1000 kHz.
3) Laser marking checking
For the device initial testing, first turn the power down to zero without turning on the
marking system after the device is successfully started. Then draw a quadrate, marking
continuously while slowly increasing the power from 0% to 100% at the same time. Meanwhile,
use a ceramic material to observe the laser and the laser should become stronger, otherwise shut
down the device and check. If operating normally, the marking system can be used in common
order afterwards.
4.3 Cautions
1) Marking frequency must be in the range of 10 kHz to 1000 kHz.
2) It should not modify the frequency while marking.
3) Stop marking first before shutting down the device, then turn the power down to zero and cut
the power off.
5. Instructions for warranty, return and maintenance
5.1 General warranty
All products are warranted by Raycus against defects and problems in materials and
workmanship during the warranty period according to the purchase order or specifications and
we guarantee the product will accord with the specification under normal use.
Raycus has the right to choose to repair or replace any product that proves to be defective in
materials and workmanship selectively during the warranty period. Only products with particular
defects are under warranty. Raycus reserves the right to issue a credit note for any defective
products produced in normal conditions.
5.2 Limitations of warranty
The warranty does not cover the maintenance or reimbursement of our product of which the
problem results from tampering, disassembling, misuse, accident, modification, unsuitable
physical or operating environment, improper maintenance, damages due to excessive use or not
10 /11

User’s guide Ytterbium Pulsed Fiber Laser RFL-P20MB Ver.: 2.0
following the instructions caused by those who are not from Raycus. Customer has the
responsibility to understand and follow this instruction to use the device. Any damage caused by
fault operating is not warranted. Accessories and fiber connectors are excluded in this warranty.
According to the warranty, client should write to us within 31 days since the defect is
discovered. This warranty does not involve any other party, including specified buyer, end-user
or customer and any parts, equipment or other products produced by other companies.
5.3 Service and repairs
Raycus is responsible for all the maintenance, for there is no accessory available inside for
users to use. Please contact Raycus as soon as possible when problems under warranty about
maintenance happen to the product. The product returned with permission should be placed in a
suitable container. If any damage happens to the product, please notify the carrier in document
immediately.
All the items about warranty and service above provided by Raycus are only
for reference; formal contents about warranty and service are subject to the
contract.
Wuhan Raycus Fiber Laser Technologies Co. Ltd.
All Rights Recerved.
11 /11