Thank you for choosing Super Powerful Laser Welding, Cleaning and Cutting three-in-one

System. This user manual provides you with important safety, operation, maintenance and
other information. Therefore, before using this product, please read this user manual
carefully. To ensure safe operation and optimum product operation, please observe the
following cautions and warnings and other information in this manual.

1、Overview
This manual covers general descriptions of the SUP series system, including basic
installation, factory settings, operation and maintenance services, etc.
The Super Powerful Laser Welding, Cleaning and Cutting three-in-one System is the latest
system that rolled out by our company which can support handheld laser welding, laser
cleaning, and laser cutting at the same time. The system will switch its operating mode
flexibly due to different application scenarios, providing diversified solutions for users'
different application requirements. The product, equipped with multiple safety alarms and
active safety power and light cut settings, covers welding heads/cleaning heads and
self-developed control system.
The product is developed on the basis of the hand-held welding heads that our company
has produced in large quantities, which makes it reliable and stable. The product can be
adapted to various brands of fiber lasers. Meanwhile, the laser head can work stably for a
long time under 2000W because of the optimized design of the optics and water cooling.

Features:
● Basic features: The product with a self-developed three-in-one control system can be
flexibly switched the mode of welding, cleaning, and cutting. It sets up multiple security
alarms and can be operated easily and flexibly.
● More stability: All parameters are visible and the status of the whole machine will be

monitored in real time, so that we can avoid problems in advance and troubleshoot and
resolve issues easily to make sure that the system can work stably.
● Craft: Craft parameters can be set, and various craft effects can be tried flexibly.
●Stable parameters and high repeatability: Nozzle Air Pressure and Lens Status will be
determined,.In this case,as long as the power of the laser is stable, the craft parameters must
be repeatable, which greatly improves efficiency.

1.1 Operating environment and parameters

The system provides clients with several options for the different application requirements.
The following are these options.

Option One：Handheld Laser Welding Head (SUP20T) + three-in-one system control box +
display screen.

This matching option is to directly use the hand-held laser welding head (SUP20T) to realize
welding, cleaning and cutting. The advantages of this solution are economical and convenient
to use, but the disadvantage is that the scanning width is narrow during cleaning and the
cleaning efficiency is average.
Table 1.1 shows the operating environment requirements and main parameters of the
handheld laser welding head (SUP20S):

Table 1.1 Operating environment requirements and main parameters of Scheme 1

Supply voltage (V) 220V±10% AC 50/60Hz

Place the environment Flat, no vibration and shock
Working environment
10～40
temperature (℃)
Working environment humidity
＜70
(%)
Cooling method Water cooling
Applicable wavelength 1064nm（±10nm）
Applicable power ≤2000W
Collimation D20*5/F60
Focus D20*4.5/F150
Reflection 30*14 T2
Protective lens specifications 18*2
Maximum supported air pressure 10Bar
Focus vertical adjustment range ±10mm
Spot adjustment range (handheld
0～6mm
welding mode)
Spot adjustment range (cleaning
0～20mm
mode)
 Weight 0.8kg

Option Two ： Handheld laser welding head (SUP20S) + F400 focusing lens + three-in-one
system control box + display screen.
This kind of matching scheme is: directly use the handheld laser welding head (SUP20S) to
realize welding, cleaning and cutting, but when used for cleaning, replace the F150 focusing
lens that comes with the SUP20S with the F400 focusing lens. The advantage of this scheme
is that it is more economical and convenient, and the scanning width can reach 50mm during
cleaning, which is higher than the first scheme in cleaning efficiency.
The operating environment requirements and main parameters of this program equipment
are shown in Table 1.2：
Table 1.2 Operating environment requirements and main parameters of Scheme 2

Supply voltage (V) 220V±10% AC 50/60Hz

Place the environment Flat, no vibration and shock
Working environment
10～40
temperature (℃)
Working environment humidity
＜70
(%)
Cooling method Water cooling
Applicable wavelength 1064nm（±10nm）
Applicable power ≤2000W
Collimation D20*5/F60
Focus (handheld welding mode) D20*4.5/F150
Focus (cleaning mode) D20*4.5/F400
Reflection 30*14 T2
Protective lens specifications 18*2
Maximum supported air pressure 10Bar
Focus vertical adjustment range ±10mm
Spot adjustment range (handheld
0～6mm
welding mode)
Spot adjustment range (cleaning
0～50mm
mode)
Weight 0.8kg

Option Three：Handheld laser welding head (SUP20S) + special cleaning head (SUP20C) +
three-in-one system control box + display screen.
The operating environment requirements and main parameters of the handheld laser
welding head SUP20S are shown in the handheld welding mode in Table 1.1.
The operating environment requirements and main parameters of the special cleaning head
SUP20C are shown in Table 1.3:
Table 1.3 Operating environment requirements and main parameters of special cleaning
heads
 Supply voltage (V) 220V±10% AC 50/60Hz
Place the environment Flat, no vibration and shock
Working environment
10～40
temperature (℃)
Working environment
＜70
humidity (%)
Cooling method Water cooling
Applicable wavelength 1064nm（±10nm）
Applicable power ≤2000W
Collimation D20*5/F60
Focus D20*4.5/F400
Reflection 30*14 T2
Protective lens
18*2
specifications
Maximum supported air
10Bar
pressure
Focus vertical adjustment
±10mm
range
Spot adjustment range 0～150mm
Weight 0.8kg

1.2Attention information
(1) Before supplying power, ensure that the shell of the whole machine is reliably grounded.
(2) The laser output head is connected with the welding head. Please check the laser output
head carefully when using it to prevent dust or other pollution. When cleaning the laser
output head, please use special lens paper.
(3) If the equipment is not used in accordance with the methods specified in this manual, it
may be in an abnormal working state and cause damage.
(4) When replacing the protective lens and focusing lens, please make sure to protect it.
(5) Please note: When using for the first time, when the red light cannot come out of the
copper nozzle, be sure not to press the trigger to emit light.

2.Installation and connection

2.1Controller interface definition

Signal
Plug Definition Detailed explanation
type
Connect to V2 of ±15V switching
1 -15V Enter power supply, provide -15V power
Power supply supply voltage
Referenc Connect to any COM of ±15V switching
2 GND
e place power supply
 Connect to V1 of ±15V switching
3 +15V Enter power supply, provide +15V power
supply voltage
Referenc -V connected to 24V switching power
4 GND
e place supply
+V connected to 24V switching power
5 +24V Enter
supply
Referenc
1 G Power ground
e place
Data direction: controller → LCD
2 R Sender
screen
LCD screen
Receivin
3 T Data direction: LCD screen→controller
g end
Provide 24V power supply for LCD
4 V Output
screen
Referenc
1 GND Signal ground
e place
The polarity of the alarm signal can be
Air pressure
2 Enter set on the setting page, and set to low
alarm signal
level alarm when not in use
Referenc
3 GND Signal ground
e place
The polarity of the alarm signal can be
Water cooler
4 Enter set on the setting page, and set to low
alarm signal
level alarm when not in use
Welding mode: connect the processed
workpiece and form a loop with 6 feet
Signal Securely lock the In to prevent accidental light emission.
5
interface 1 reference ground isolation Cleaning mode: The interface is
suspended, and no judgment is made
inside the software.
Welding mode: connect the blue wire
of the three-core wire of the welding
head.
6 Safely lock Enter
Cleaning mode: The interface is
suspended, and no judgment is made
inside the software.
Welding head light Referenc The brown wire of the three-core wire
7
switch 1 e place connected to the welding head.
Welding head light The blue wire of the three-core wire
8 Enter
switch 2 connected to the welding head.
1 Reserved input Enter Reserved
Signal
Reserved (synchronized with 4 foot air
interface 2 2 Reserved output Output
valve signal)
 Referenc Signal ground (reference ground of pin
3 Protection valve-
e place 2/4)
Air valve open: output 24V;
4 Protection valve+ Output
Air valve closed: no output.
5 Wire feed- Welding mode: The wire feed switch
signal of the wire transfer machine,
regardless of positive or negative.
6 Wire feed+ Cleaning mode: no wire feeding is
required, and the interface is
suspended.
Laser abnormal
1 Enter Laser alarm signal
signal
2 Laser light enable Output Enable signal of laser
24V output, directly output 24V
3 24V output Output
voltage after power on.
Signal Referenc Reference ground (reference ground
4 GND
interface 3 e place for pin 1/2/3/5)
0 ～ 10V
0 ～ 10V analog Connect to the analog quantity of the
5 analog
quantity laser DA+
quantity
6 RF-(PWM-) Output Laser pulse width modulation signal-
7 RF+ (PWM+) Output Laser pulse width modulation signal+
2.1.1 Controller power supply terminal
The power supply terminal uses a 5P interface, and the supplied 24V switching power
supply and ±15V switching power supply are used for power supply.
Please note that the 15V switching power supply distinguishes the positive and negative
poles, V1 is connected to +15V, V2 is connected to -15V, and any COM on the 15V switching
power supply is connected to pin 2 GND!
Please note that the switching power supply must be grounded!
2.1.2 Controller LCD screen
The wiring of the LCD screen is included with it, and it can be connected directly. The specific
definition is shown in Table 2.1 above.
2.1.3 Controller signal interface 1
The signal interface 1 uses the 8P interface, which is the input signal interface.
Signal interface 1
Pin
Signal definition Function Description
number
1 GND If you need to enable the air pressure alarm
signal input port (wiring is required), please
set the "air pressure alarm level" on the setting
2 Air pressure alarm signal page of the display to the same level as the
actual air valve alarm level.

3 GND If the water tank alarm signal input port needs

 to be enabled (wiring is required), please set
the "water cooler alarm level" on the display
4 Water tank alarm signal
setting page to be consistent with the actual
water cooler alarm level.
Welding mode: directly connected to the
Securely lock the reference workpiece.
5
ground Cleaning mode: The interface is suspended,
and no judgment is made inside the software.
Welding mode: The safety ground lock of the
welding head is connected to the blue wire of
the three-core wire. When the welding head
6 Safely lock touches the workpiece, the safety ground lock
on the screen lights up.
Cleaning mode: The interface is suspended,
and no judgment is made inside the software.

7 Welding head light switch 1 Connect the brown wire of the three-core wire.

Connect the black wire of the three-core cable.

8 Welding head light switch 2 When the trigger is pulled, the trigger button
on the screen will be on.
Note: Please note that only when there is no alarm, and the safety lock and switch signal are
displayed in green, the subsequent output ports will have normal output signals.

2.1.4 Controller signal interface 2

The signal interface 2 uses the 6P interface, and the detailed function definition is shown in
Table 2.3:
Table 2.3 Function description of signal interface 2
Signal interface 2
Pin
Signal
numbe Function description
definition
r
Reserved
1
input
Reserved pin
Reserved
2
output
Protection
3
valve- Air valve open: protection air valve + 24V output;
Protection Air valve closed: protective air valve + no output.
4
valve+
5 Wire feed- Welding mode: The wire feed switch signal of the wire transfer
machine, regardless of positive or negative.
6 Wire feed+ Cleaning mode: no wire feeding is required, and the interface is
suspended.
2.1.5 Controller signal interface 3
The signal interface 3 uses the 7P interface, and the detailed function definition is shown in
Table 2.4:
Table 2.4 Function description of signal interface 3
Signal interface 3
Pin number Signal definition Function description
If you need to enable it (wire connection is
required), please set the "Laser Alarm Level" on
1 Laser Abnormal Signal
the screen setting page to be consistent with the
actual laser alarm level.
2 Laser light enable Enable +, connect to the enable + of the laser.
24V output, directly output 24V voltage after
3 24V output
power on.
Common ground (reference ground for pin
4 GND
1/2/3/5)
5 Analog + Analog output (default is 0～10V analog voltage).
6 RF-(PWM-) PWM-modulated signal
7 RF+ (PWM+) PWM+ modulation signal

Click for details: Laser wiring definition logic:Click for details: Laser
wiring definition logic

2.2 Controller wiring diagram

The wiring of the three-in-one controller is slightly different in different modes,
 Figure 2.1 Wiring diagram of welding mode controller

Note: The COM terminal of the ±15V switching power supply and the -V
(0V) terminal of the +24V switching power supply must be connected to
GND. The shell of the switching power supply must be connected to the
ground, otherwise abnormalities such as no light may occur.

2.3 Optical input interface

SUP welding head is suitable for most industrial laser generators. Commonly used fiber
connectors include IPG, Ruike, Chuangxin, Fibo, Tottenham, Jept, Kaplin, etc. The optics must
be kept clean, and all dust must be removed before use. The torch head must be placed
horizontally when the optical fiber is inserted to prevent dust from falling into the interface.
Installation method
2.4 Shielding gas and water chiller interface
The water pipe and air pipe interface can be installed with hoses with an outer diameter of
6mm and an inner diameter of 4mm. The middle is the gas inlet, and the two sides are the
water inlet and outlet pipelines (regardless of the inlet and outlet directions), as shown in
the following figure:
 Figure 2.2 Schematic diagram of water pipe and air pipe

The cooling system is divided into the water circuit part of the welding head and the
water circuit part of the optical fiber head, which are connected in series, as shown in the
figure below:

Figure 2.3 Schematic diagram of the water circuit of the welding head and the optical fiber
head

2.5 Welding gun and control box connection interface

The welding gun and the control box use three wires to connect, including: two-core motor
power cord, five-core motor signal line, and three-core safety lock and trigger button line.

3、Control panel operation guide

The version number of the control panel of the three-in-one system is 532. You can check
the system version through the monitoring page. The last three digits indicate the version of
the control panel.
3.1 Welding mode
（1）Front page

①On this interface, you can see the current process parameters (the process cannot be
modified on this page) and real-time alarm information.
②When the power is on The enable default is ON, indicating that the red light defaults to
LINE, and the welding mode is continuous.When the enable is turned off, the enable signal
will not be sent to the laser, which can be used to test the gas outlet function. Turn off the red
light indicator and the motor stops swinging. At this time, the red light is a point for
adjusting the center position. The welding mode is divided into continuous and spot welding.
When spot welding is selected, the spot welding type needs to be set on the setting page.
③The safety lock is divided into gray and green. When the 5 and 6 pins of the signal
interface 1 are short-circuited, the display is green. At this time, the light can be emitted by
controlling the signal pin "welding head light switch 1, 2".
④Upper right corner orange The button is a switch button,Click to switch to the cleaning
mode selection interface.
（2）Craft page
Scanning speed range: 2~6000mm/s;
Peak power range: 1W～xW, x is the laser power on the setting page;
Duty cycle range: 0～100%, the default setting is 100%, usually no need to change;
Pulse frequency range: 5～100000Hz, 5～5000Hz is recommended;
Precautions：
①The process interface contains the process parameters for debugging. There are a total of
10 processes that can be saved in this version.
②The parameters of the craft page can be modified, click the input box to modify, click OK
after modification, and then save, and click import when using it (modify-save-import).
③Some lasers cannot emit light with a power lower than 10%. When the peak power of the
craft page is less than 10% of the maximum power of the laser on the setting page, all output
signals are normal, but light may not be emitted.
④ The duty cycle is 100% by default, and usually does not need to be changed. At this time,
the pulse frequency does not work. If you need to use it, please adjust it according to actual
needs. Example: 300W peak power, 50% duty cycle, and 1000Hz pulse frequency. At this
time, the light emission period is 1mS, 0.5mS emits light at 300W, 0.5mS does not emit light,
and it cycles back and forth. At this time, the airblasts at the welding place and abnormal
noise is normal. The actual situation is subject to the laser parameters.
⑤ Click the "Help" button at the top right of the screen to get more related parameter
explanations.
⑥More reference crafts can be viewed in the craftsmanship of the WeChat applet.
（3）Settings page

Click "Settings" on the home page, and enter the password 123456 on the password input
page of the pop-up window to enter the settings page.
①The laser power is the maximum power calibrated by the laser manufacturer used. Please
fill in it correctly.
②The switch air delay defaults to 200ms, and the range is 0ms～3000ms.
Example: Set the air-on delay to 1000ms, and the air-off delay to 500ms. The actual effect is
that when the trigger is pressed, the breath lasts for 1000ms and then the light is emitted.
Release the trigger, after the laser stops emitting light, continue to vent for 500ms and then
stop
venting. Reasonable setting of the switch gas delay can well protect the molten pool from
oxidation and prevent slag return from damaging the lens.
③When the light is turned on, the process power is gradually increased from N1 to 100%;
when the light is turned off, it is gradually increased from 100% of the process power to N2;
(as shown in the figure below):

Generally, the preset switching optical power is 20%, and the switching optical progressive
time is 200ms;
④Wire feeding delay compensation is the wire feeding advance time relative to the light
signal. It can be used in conjunction with the withdrawal function, and it is not set by default;
⑤The maximum temperature alarm threshold is 65℃, when the value is set to 0, no
temperature alarm will be detected;
⑥Scan correction coefficient = target line width/measurement line width, range 0.01 ～ 4.
Generally set to 1;
⑦Laser center offset -3～3mm, reduce it and move it to the left, increase it and move it to
the right, it is used to adjust the red light center of the axis;
⑧The air pressure/water cooler/laser alarm level signal defaults to low level. When this
alarm signal is used, the alarm level here needs to be set to be consistent with the alarm level
of the external device;
⑨Spot welding duration is the light emission time in each cycle in the spot welding mode,
and the spot welding interval time is the stop light time in each cycle in the spot welding
mode;
⑩Click the "Language" box in the lower left corner to switch the interface language. The
current version supports Chinese, English, Korean, and Russian. Click the "Help" button at
the top right to get more related parameter information.
（4）Monitoring page

This page displays the status of each signal and device information. Please note that this
monitoring interface is only displayed when the setting interface is in Chinese, otherwise it is
a monitoring page of other versions.

①Input signal status

Laser trigger signal: Press the hand-held welding trigger, the 7 and 8 pins of the signal
interface 1 are turned on, and the status changes from gray to green to take effect.
Safely lock signal: safely clamp on the workpiece. When the copper nozzle of the gun head
touches the workpiece, the status will change from gray to green to take effect.
Laser/water cooler/air pressure alarm signal: monitor the real-time level status input from
these interfaces.

②Output signal status

When the signal is output, the signal in this area changes immediately and can be directly
visualized. The monitoring signal is a real-time detection circuit signal, which fluctuates
within a certain range and has an error of less than 0.3V from the final output signal.
③Basic equipment information
Device authorization: The device can be authorized for the duration of use. When the device
is used for more than the set time, the authorization is displayed as terminated. The factory
default authorization is valid for a long time. If you need encryption and decryption, please
contact our company for inquiries.
System version: three groups of numbers, the first group is the hardware version, the second
group is the program version of the microcontroller, and the third group is the touch screen
version.

④Power state
Shows the real-time power supply voltage and current of the device.

⑤Communication status
The communication between the touch screen and the main board is displayed. If there is no
synchronization, check the screen connection line.

⑥Diagnosis
On the monitoring interface, click the "Diagnosis" button to enter the diagnosis interface. No
light will be emitted at this time, and it is used to measure whether each signal port has an
actual output, usually the output value is consistent with the detection value. When it is
inconsistent, the load is abnormal, such as when the laser does not emit light, by switching a
single port and using the laser monitoring software or multimeter to measure, it can truly
reflect whether the signal is sent out.

3.2 Mode switching

Figure 3.2.1 Welding Home Page Figure 3.2.2 Switch page

Click the switch button on the welding home page to enter the transition page. Click
"Continue" and follow the system prompts to power off and restart to switch to cleaning
mode.

Figure 3.2.3 Prompt page Figure 3.2.4 Cleaning the homepage

In the same way, you can switch from cleaning mode back to welding mode.
3.3Cleaning mode
3.3.1Front page

①On this interface, you can see the current process parameters (the process cannot be
modified on this page) and real-time alarm information.
②When the power is on The enable default is ON, indicating that the red light defaults to
LINE.When the enable is turned off, the enable signal will not be sent to the laser, which can
be used to test the gas outlet function. Turn off the red light indicator and the motor stops
swinging. At this time, the red light is a point for adjusting the center position.
③This mode no longer detects the safety lock signal, so there is no need to modify the
wiring after switching the mode.
④Upper right corner orange The button is a switch button,Click to switch to the welding
mode interface.

（2）Craft page
Scanning frequency range: 0~100Hz;
Scanning width range: 0~20mm/50mm/150mm, the maximum width is selected according
to the gun body and focusing lens model. See the model selection page for details.
Peak power range: 1W～xW, x is the laser power set on the setting page;
Duty cycle range: 0～100%, the default setting is 100%, usually no need to change;
Pulse frequency range: 5～100000Hz, 5～5000Hz is recommended;

Precautions:
①The process interface contains the process parameters for debugging. A total of 3
processes can be saved in this version.
②2×scanning frequency×scanning width=actual scanning speed. Maintaining the same
scanning frequency can ensure a relatively uniform scanning trajectory under different
scanning widths.
③The parameters of the craft page can be modified, click the input box to modify, click OK
after modification, then save, and click import when using it (modify-save-import).
④Some lasers cannot emit light with a power lower than 10%. When the peak power of the
craft page is less than 10% of the maximum power of the laser on the setting page, all output
signals are normal, but light may not be emitted.
⑤ The duty cycle is 100% by default, and usually does not need to be changed. At this time,
the pulse frequency has no effect. If you need to use it, please adjust it according to actual
needs. Example: 300W peak power, 50% duty cycle, and 1000Hz pulse frequency. At this
time, the light emission period is 1mS, 0.5mS emits light at 300W, 0.5mS does not emit light,
and it cycles back and forth. At this time, the air blasts at the welding place and abnormal
noise is normal. The actual situation is subject to the laser parameters.
⑥Click the "Help" button at the top right of the screen to get more related parameter
explanations.
⑦For more reference crafts, you can check the craftsmanship of the WeChat applet.

（3）Settings page
Click "Settings" on the home page, and enter the password 123456 on the password input
page of the pop-up window to enter the settings page. Compared with the welding mode, the
setting page of the cleaning mode has deleted some parameters that are not used for
cleaning, and added two parameters dedicated to cleaning, "Tip Type" and "Trigger Setting".
①The laser power is the maximum power calibrated by the laser manufacturer used, please
fill it in correctly;
②The default delay of switch gas is 200ms, and the range is 0ms～3000ms;
③The scan correction default is 1, and the range is 0.1~4. "Scan correction" × "scan width"
of the craft page = actual scan width at the focal point (±3mm);
④The laser center offset is 0mm by default, and the range is -75mm～+75mm. Decrease to
move to the left, increase to move to the right, applied to adjust the axis of the red light
center;
⑤The temperature alarm threshold is 65°C by default, and the alarm is invalid when it is set
to 0°C.
⑥ Trigger setting: When you select double-click, press the trigger twice to emit light, which
can prevent accidental touch. Press the trigger once when you choose to click to emit light.
⑦The air pressure/water cooler/laser alarm level signal defaults to low level. When this
alarm signal is used, the alarm level here needs to be set to be consistent with the alarm level
of the external device;
⑧ "Tip Type" Click the orange area to enter the model selection page, and select the
corresponding scan width according to the specific model. If the width does not match the
model, the laser may hit the inside of the gun body and damage the product.

（4）Scan width selection page

①"SUP20S-150mm focal length-20mm width" corresponds to the factory default
configuration of the 20S handheld welding gun. After selecting this model, you only need to
disassemble the front-end scale tube and related firmware of the welding torch. At this time,
the maximum cleaning width is 20mm.
②"SUP20S-400mm focal length-50mm width" corresponds to the extended configuration of
the 20S handheld welding gun. After choosing this model, you need to remove the front scale
tube and replace the focusing lens with a D20-F400 lens. At this time, the maximum cleaning
width is 50mm.
③"SUP20C-400mm focal length-150mm width" corresponds to the standard configuration
of the 20C cleaning gun, and the entire gun body needs to be replaced with a 20C cleaning
gun. At this time, the control box and the screen do not need to be replaced, and the
maximum cleaning width is 150mm.
（5）Cleaning monitoring page

This page displays the status of each signal and device information. Please note that
this monitoring interface is only displayed when the setting interface is in Chinese, otherwise
it is a monitoring page of other versions.

4.Cutting function
This system does not have a professional cutting mode. Based on the actual power of the
laser, the welding mode can be used for thin plate cutting.
When you need to use the cutting function, please replace the cutting copper nozzle and set
the scan width to 0mm.

5.Maintenance
How to maintain and replace protective lenses:
① Before operation, please clean your hands and wipe them dry, and then wipe your hands
again with cotton dipped in alcohol.
② Remove the screws of the protective lens compartment cover in a relatively dust-free
place, pull out the protective lens bracket, and protect it (covered by masking paper). Check
the protective lens. If there is obvious burning on the surface of the protective lens, replace it
directly.
③ Then check the white accumulating sealing ring under the protective lens. (If there is any
scratch or deformation of the accumulating seal ring, it cannot be used and must be replaced
immediately.
④ Wipe the compartment opening and the inside of the compartment cover with a cotton
ball dipped in alcohol, quickly insert the protective lens holder into the protective lens
compartment, and tighten the screws.
5. Common exception handling
5.1 Prompt laser/water cooler/air pressure alarm
① If the above alarm occurs without using the alarm signal, please change the alarm level on
the screen setting page.
② If the above alarm occurs when the alarm signal is used, check whether the alarm of the
corresponding equipment or the high and low levels of the alarm signal are set incorrectly.
5.2 The screen doesn't light up/click no response
① If the screen is not on, make sure that the controller is powered on, and check whether
the four-core wire between the controller and the screen is correctly wired, and whether the
24V voltage of pin 1 and pin 4 is normal.
② If the click does not work during normal use, check whether the temperature of the
whole machine is too high.
③ Tap Cannot input, check whether the four-core wire between the controller and the
screen is correctly wired, and whether the second and third pins are normal. For details, see
2.1.2 on the display of the controller.
④ There is no response when clicking on the newly installed device. It may be that the
system version does not match, just use the SD card to re-swipe the program. Please consult
our company for the specific version.
5.3 No light
① Check whether there is an alarm prompt on the homepage and whether the laser enable
is ON;
② Check whether the trigger signal and safety lock signal on the monitoring page are
displayed in green when welding;
③ Check whether the PWM, laser enable, and analog output on the monitoring page are
normal during welding.
If the above status is normal, please check whether the laser has abnormal alarm.
Example: The air is fed and the wire is fed but the light is not emitted, which is because the
laser is faulty or the laser wiring is wrong. If neither the air is vented nor the wire is fed, the
input signal may be missing. For details, see: 2.1.3 Controller signal interface 1.
5.4 The light suddenly stops during processing
Check whether the monitoring interface is securely locked and other alarms are normal.
Appendix
Three-phase power wiring reference for laser welding machine:
Note: Two-phase or three-phase power depends on the power supply required by the laser
and chiller, not the amount of wiring harness.