After Sales Question Manual

THC- Height regulator

1. The upper/lower limit is valid

1: Is the "limit input logic" parameter of the height regulator set correctly? The limit signal can be set to normally open or not  normally closed.

2: Has the upper/lower limit truly sensed the object and output a valid level signal.

3: Is the sensor damaged, or is there oil or dust present.

4: Check ifthe Z-axis cable is intact.

5: Check the 24V output voltage

2. Abnormal lifting height

When cutting, it was found that the lifting height was getting lower and lower. At this point, it is necessary to check whether

the coupling is mechanically slipping or not

Abnormal mechanical connection

3. The capacitance of the main body decreases

1: Replaced ceramic ring and cutting nozzle (unqualified or not tightened with poor contact).

2: The alarm may also be triggered by a random change in the characteristics of the simulated components, such as the movement of the RF wire over connection. At this point, recalibrate.

3: Laser scattering onto the nozzle causes a sharp increase in nozzle temperature, resulting in temperature drift.

4: Blowing air causes a change in the gap between the positive electrode (nozzle) and the negative electrode (cutting head casing).

5: Setting the calibration distance too small (less than 10mm in 3D andless than 15mm in 2D) may also cause an alarm indicating a decrease in the body capacitance.

6: Plasma cloud impact capacitor amplifier. The probability of occurrence during the cutting process of stainless steel plates, especially those with film, is relatively high. For stainless steel with film, please remove the film first before cutting, do not directly cut with film (except for laser special film).

7: Check the grounding of the machine tool to avoid floating ground and ensure reliable grounding.

8: Do not set the following height below 0.5mm. Increasing the following height appropriately will improve the situation. Increase the air pressure appropriately.

4. During the processing, there is an alarm indicating that the capacitance of the main body has decreased

1: It may be related to factors such as light emission, blowing, movement, temperature drift, cutting process, etc. First, blow air separately,  select high-pressure gas as the blowing type, and  compare the changes in  capacitance before and after blowing.

2: If the C value changes by more than  100 before  and after blowing, please check whether the sensor installation is standardized, whether the ceramic body installation is standardized, and whether the nozzle is tightened.

3: If the change in C before and after blowing is less than  100, check the cutting head for light deviation and determine if the light pathis normal. If the laser hits the nozzle, it will cause abnormal changes in capacitance;

4: If the cutting headlight is misaligned and the light spot on the tape is not concentric with the nozzle. Please adjust the cutting head to align with the module;

5: If the cutting head is aligned correctly, it can be confirmed that the nozzle and light path are concentric. Close the shutter and conduct a non luminous motion test to determine ifthe body capacitance has decreased due to movement;

6: When the body capacitance decreases during exercise, an alarm can be triggered to indicate poor contact in the capacitor transmission part;

7: If there is no alarm for the decrease in capacitance of the main body, it is basically determined that the alarm is caused by laser light emission;

8: If there is an alarm indicating a decrease in the capacitance of the main body at the beginning of processing, and if the processed sheet is a film coated sheet, please use the "film cutting" function to remove the film before processing;

9: If an alarm occurs after cutting for a period of time ( 10 minutes), it may be caused by temperature changes;

10: When the  capacitance  of the main body  decreases by  less  than  1000,  the  temperature  drift  can  be  automatically compensated through the real-time calibration function of the regulator. (Press F2 on the height adjuster interface, then press 8 to enter the advanced parameter interface and enable real-time calibration function);

11: If the capacitance of the main body decreases by more than 1000, please replace the sensor probe or ceramic body.

5. The tracking height deviates significantly from the actual set height.

1: Incorrect parameter settings, mismatch between the lead of the screw and the actual lead, and mismatch between the speed gain parameter of the regulator and the set value of the driver can all lead to this problem

2: Calibration issues often occur when the floating head capacitor calibration is not performed again after replacing the nozzle.

3: Laser scattering onto the nozzle causes an abnormal increase in nozzle temperature, or blowing air causes significant changes in capacitance, which alters the capacitance of the cutting head

6. The z-axis tracking error is too large

1: Z-axis returns to origin

2: Check ifthe coupling is loose

3: Check ifthe servo lead is normal

4: Check ifthe board is shaking severely

7. Z-axis brake cannot be opened

1: Check ifthe wiring of the brake relay is correct

2: Check ifthe relay coil is engaged

3: Measure relay 24V power supply, no 24V

4: Measure ifthere is 24V on the brake wire at the motor end

5: Replace the motor

8. Calibration is not optimal

1: Check ifthe calibrated position of the board vibrates. If it vibrates, move it to a stable location for calibration. 2: Move the cutting head to a position 2-3mm away from the board and remain stationary.

3: Press 5 on the main interface of the regulator to enter the capacitor monitoring interface and observe the DIF value.

4: If the DIF value is within 30, it can be determined that there is poor contact in the sensor part. Check the nozzle, ceramic ring, sensor head, and RF cable in sequence.

5: If it is greater than 30, it can be determined that there is electromagnetic interference in the system. Then, power off the high-power electrical equipment around the device and observe the DIF value. If it decreases to less than 30, it can be determined as external interference and a new grounding stake needs to be driven.

6: If the value is greater than 30 and there is no significant change in the value, interference may come from the power supply of the regulator and the power supply needs to be replaced.

9. Abnormal focus change of cutting head

1: Measure the resistance of the motor and check if the resistance between A+A - B+B - is balanced (normal resistance is around 5 Ω)

2: Check ifthe coding line is damaged

3: Poor contact between the driving power line segment and the drive

4: Check the pulse line from the driver to the BOCHU board

10. Calibration deviation of cutting pipes for integrated plate and tube

1: Check ifthe bed grounding wire is properly connected, and connect the machine tool grounding wire

2: Connect the flat machine tool and the pipe cutting machine with galvanized sheet metal to achieve a common ground state

3: Is the RF cable tightened

4: Is the ceramic ring damaged and is it fixed abnormally

5: Reduce the sensitivity level of the regulator appropriately

11. Shaking during cutting process

1: Check ifthe ceramic ring and cutting nozzle are loose, recalibrate.

2: Move the cutting head to a position about 2-3mm away from the board and observe the dif value.

3: If the dif value is greater than 30, with frequent jumping, or occasionally jumping above 50 or even exceeding 100, it is judged as electromagnetic interference. In the abnormal state of the dif value, disconnect the enable of each axis (including the focusing axis) and external interference sources such as air compressors and frequency converters one by one, and see where the dif value recovers and stabilizes to within 30. If good grounding and standard grounding stakes are required, the servo motor power line can be fitted with a magnetic ring to see if there is any relief. Strong and weak separation should be done, and the distribution cabinet wire panel should avoid clustering together. Although the wrapping is beautiful, there will be  an  antenna effect. We  should  follow the principle  of EMC,  locate  the radiation  source,  and then  specifically  find corresponding methods such as filtering, grounding, shielding, etc. The star grounding method should be used for grounding to avoid stringing together. The grounding terminal of the regulator should also be well grounded. In addition, the loose joints on both sides of the capacitor wire can also lead to unstable dif values, quality problems with the capacitor wire itself, and  long  capacitor wires  in poor  electrical  environments.  Poor grounding of machine tools can also cause problems. Damage  to  the  capacitor  module  circuit  can  also  cause  abnormal  fluctuations  in  the  dif value.  Failure  to  meet  the conductivity standards between the separated bed and the main bed can also lead to. Wait for these, in short, achieve equipotential, good grounding, anti-interference, and no false connection.

4: If the dif value is less than 30 and stable, first determine whether there is a problem with the z-axis, whether the z-axis coupling is not tightened, and whether the servo parameters of the z-axis are set improperly. It is necessary to perform float calibration and servo calibration in advance, and then perform automatic adjustment, which will be considered as the effect after that. There is also a situation where the cutting head of the thin sheet material will shake, which requires turning on vibration suppression. There is a virtual connection in the physical structure of the capacitor circuit at the cutting head, which can also cause the cutting head to shake during cutting motion.

12. When following motion, it often collides with the board surface

1: The calibration range is set too small or the Z-axis speed is set too large

2: Setting the servo rigidity too low can cause the servo response to lag behind the control signal of the controller, resulting in collision with the board surface.

3: Capacitor calibration issue, the ceramic body locking nut is not tightened, which may cause unstable detection of the capacitor.

Mechanical

13. Error in accuracy of cutting roundness or non roundness

1: Check ifthe slider has dropped steel balls.

2: Check ifthe laser head is loose and if the ceramic ring is loose.

3: Check ifthe Z-axis fixing plate is deformed or loose.

4: Check ifthe T-shaped plate is loose.

5: Check ifthe screws on the fixing plate of the XY1 Y2 reducer are loose.

6: Check ifthe teeth of the gear rack are aligned.

7: Check ifthe coupling between the motor and gearbox is loose.

8: Check ifthe global parameters for machining acceleration and machining low-pass frequency are correct.

9: Check ifthe flange fixing plate (shaft) of the gear and reducer is shaking.

10: Check ifthe machine tool is shaking.

11: Check if the cutting workpiece is shaking.

12: Is the exchange platform shaking with two bed frames.

13: Test the engagement using solder wire and micrometer, with 3-5 wires engaged.

14: The tightening screw of the gearbox cannot be tightened (it can be pushed without power on)

15: Is the reverse clearance of the reducer normal.

16: Operating system error diagnosis and judgment system servo feedback problem or mechanical problem.

14. The accuracy of flying cutting for small circles is poor, while the accuracy of cutting without flying is good

1. Conduct error measurement on the cut shape and find that the error measurement feedback curve is not good. (The encoder feedback is abnormal. It may be due to the speed being too fast, the servo response being insufficient, or there may be an issue with the accuracy of the instructions.)

2. Open instruction collection and feedback collection, import NC's instruction file, and find that there is a deviation in the instructions, and the instruction curve almost overlaps with the feedback curve; (Instruction issue) Note: We sacrificed some accuracy in order to improve the efficiency of flying cutting. You can reduce the instruction error of the flying cut shape by selecting "Enable Precision Flying Cutting" in the global parameter and reducing the value of "Curve Accuracy".

15.  Large calibration error of B-axis center

1: Use standard pipes without R-angle for calibration

2: After calibration, perform single-sided leveling before cutting, and then perform multi-faceted centering

3: Perform centering before cutting parts

16. Z-axis motor abnormal noise

1: Determine ifthe brake is open

2: Check the Z-axis slider and guide rail for damage, the backplate for any bumps or deformations, and whether the Z-axis screw bolt connection is loose,

3: Remove the backboard and check if the screw rod bearing seat is damaged or if the screw rod body is bent too much

4: No problem, clean the sludge, lubricate well, install the gauge, and check for any machining accuracy issues during the gauge installation.

5: Check Z-axis rigidity (reduce rigidity to see if abnormal noise disappears)

6: Check Z-axis acceleration

7: Check the idle condition of the Z-axis motor (remove the Z-axis motor for idle testing to determine if there is a problem with the motor itself)

17.  The exchange platform is unable to exchange

1: Check ifthe exchange platform is in place and ifthe limit position is sensed

2: Check ifthe motor is overloaded and ifthe tension sleeves on both sides of the chain are normal

3: Check the front locking cylinder limit

4: Check backend parameters

5: Check ifthere is anything stuck on the motor drive shaft

18.  Machine oil leakage

1: Set the appropriate oiling time according to the customer's model

2: Check for oil pipe damage and oil leakage

19. XY axis abnormal noise

1: Check ifthere is friction on the dust cover

2: Check ifthe slider is damaged

3: Check ifthe gears and racks are worn

4: Check for debris on the guide rail rack

5: Check the motor for any abnormal noise

20. Two Y-axis are not synchronized

1: Perform gantry initialization

2: Check the parameters and re-enter the drive parameters

3: Monitoring Y1Y2 axis pulse feedback with control card

4: If there is a problem, check the connection at the motor end to see if it is installed properly

5: If there are no problems, simply swap the two Y-axis motor wires and the coding wire, but it still doesn't work. Replace the motor

21. The Y-axis motor of the machine tool triggers an overload alarm when it moves

1: Check if the power line is in good contact, remove the motor wire at the driver end, and use a multimeter to measure the resistance range of U-V, U-W, and V-W to see if they are conductive. Also, check if any phase of U/V/W is not connected to the ground wire.

2: Pull off the motor wires on both sides of the Y-axis, push the crossbeam by hand to see if it can be pushed smoothly. If it cannot be pushed, it can be determined that the gearbox is stuck. Check whether there are impurities in the gear rack and whether the gearbox is damaged. Replace the gearbox.

3: Remove the coupling of the motor reducer on both sides, open the cutting software, set the machine to slow speed, jog the Y-axis to see if the driver still reports an overload alarm. If the alarm disappears, it can be determined that the driver and motor are normal.

4: If the alarm  still persists, swap the two Y-axis port wires and see if they are from the  same driver. If not, it can be determined that the output wire of the shaft port is damaged.

6: Open the cutting software, open the file ->diagnostic tool ->control card monitoring, enter 1000 pulses in the Y-axis pulse input box, click send, observe whether there is pulse feedback Y1+Y2=0 at the corresponding axis port. If the sum of the pulses is twice the amount, it can be judged as axis feedback error. Open the platform configuration and reverse the encoder of the incorrect axis port.

Step 7: If there is no feedback signal from one of the shaft ports, it may be a problem with one of the terminal board, 62 core cable, or control card. Prepare new parts to troubleshoot one by one.

22.  Square tube with perforation deviation

1: Find a standard square tube without an R-angle of about 1.5m, clamp the tube, and shake it by hand to see if there is any slight shaking. If there is, adjust the air pressure and check until it cannot shake.

2: Calibrate the center of the B-axis.

3: Mark and draw lines in the middle of this pipe, and there is no need to remove the pipe after marking is completed,

4: Use a vernier caliper for measurement. If the accuracy is inaccurate, adjust the corresponding jaws

5: Measurement chuck, concentric, (detailed chuck debugging NO.27)

23. Meet at the corner of the pipe machine

1: Improve the rigidity of the z-axis servo. If the rigidity of the z-axis motion is too low and the following response is low, it will collide

2: Check if the drawing is consistent with the r-angle of the pipe material. If there is a significant deviation, there may also be a collision.

3: Enabling the pipe corner process and setting the cutting height correction will result in an additional upper setting value when cutting corners.

4: If the b-axis speed is too fast, you can check the b-axis speed limit to reduce the b-axis idle speed and avoid corner collision

5: Check ifthe z-axis acceleration is too low or if the maximum speed is too low

24.  The claw does not move or can only move once but is not in place

1: Check ifthe auxiliary air is turned on (pressure below 0.8MP)

2: Check ifthe solenoid valve has 24V DC power.

3: Clean the gap between the dust claws and remove foreign objects.

25.  After clamping the chuck, release it after a period of time

1: Check ifthe air circuit is burnt out

2: Check ifthere is any air leakage at the air circuit joint.

3: Check ifthe chuck three-way check valve is maintaining pressure.

26. Chuck, concentric

When debugging the rotation accuracy, standard square tubes without chamfers are used, and three chucks are required. For the rotation debugging of the center card, a fixture is installed on the center card, the dial gauge seat is attached to the bed, and the measuring headis placed on the center circular rod of the fixture to measure the error when the center card rotates one circle. Usually, the rotation accuracy of the main card and tail  card is required to be within ±  15 threads, and the medium card is required to be within ± 5 threads.

1: Single chuck debugging requires separately debugging the upper busbar, side busbar, and rotation accuracy of the main card, middle card, and tail card. In the debugging of the upper and side busbars, both the main card and the tail card attach the dial gauge seat to the bed, and the measuring head is placed on the corresponding outer diameter of the chuck to measure the error when the chuck moves along the Y-axis direction. The middle card usually attaches the dial gauge seat to the main chuck, and the measuring headis placed on the inner diameter of the middle card to measure the error when the main chuck moves along the Y-axis direction. The precision requirements for the upper and side busbars of the main card, middle card, and tail card are usually within ± 10 wires.

2: Joint debugging of concentricity and coaxiality can be divided into two forms: main card+middle card joint debugging and middle card+tail card joint debugging. Taking the main card and middle card as an example, suction the dial gauge holder onto the main card, place the measuring head on the inner diameter of the middle card, and measure the error when the main card rotates once when the middle card is fixed. The joint debugging method of medium card and tail card is similar to this. Usually, the precision requirement for joint debugging is within ± 10 threads.

3: Testing and debugging accuracy

This step requires the use of another fixture, usually a long standard round rod. The main card, middle card, and tail card clamp the round rod at the same time. The dial gauge seat is attached to the bed, and the measuring headis placed on the center round rod of the fixture. The error is measured when the three chucks rotate synchronously once to verify the debugging results of the previous two steps. The error is usually required to be controlled within ± 15 threads.

27. How to quickly correct diagonal deviation

1: Draw a  1000  * 2000 rectangle using  software, the larger the better. Operate according to the effective travel of the machine, then place a thin plate and mark it. Use a ruler to measure the two diagonals. Normally, the values of the two diagonals should be consistent. If there is a significant difference in values, it means that the diagonals are off center. To correct the deviation of 5mm, use the BOCHU backend diagonal vertical correction to correct it. If there is a  significant difference in values, it is necessary to correct the mechanical part by moving it

2: Mechanical correction: The diagonal is not correct. Unscrew the four slider screws on the Y-axis to keep the cutting platform stable and not shaking. Place an iron plate on the blade to ensure flatness. Place a 500 * 500 * 50 marble square gauge on the iron plate for cross line marking test. First mark the left and right in the x-direction with an error of within 3 threads, and then mark the front and rear in the y-direction with an error of within 3 threads. Tighten the slider screws and retest the cross line

Electrical appliances

28.  False alarm of safety light curtain

1: Check for wear and loose connections in the circuit.

2: Check ifthere is any virtual soldering or detachment in the plug.

3: Extend the background filtering time appropriately.

4: Replace with a new safety light curtain for testing.

5: Is the receiving and transmitting ends of the light curtain dirty

29. When the main switch is tripped, it will trip when power is transmitted and cannot be powered on

1: Is an air switch used. Leakage protection is not recommended for use

2: Check ifthe cable U VW N PE is connected incorrectly

3: Check ifthe air switch is intact.

4: Check ifthe control cabinet and voltage regulator components have come loose.

5: Check the leakage protector, as some brands of leakage protectors have sensitive contacts

6: Check ifthere is any desoldering or short circuit in the plug UV W at the motor end

7: When the equipment trips at a certain point during operation, check if the wires in the drag chain are worn or broken, and if the grounding causes a short circuit and the equipment trips, especially if the wires  are squeezed at the bend of the equipment sheet metal.

8: The neutral and ground wires  are  conductive. When the  three-phase load is balanced, the neutral wire  is  actually equipotential, that is, there is no voltage. However, in actual circuits, the three-phase load cannot be absolutely balanced, so the neutral wire has voltage. After the ground wire is connected, this voltage has current, which is equivalent to a short circuit in the circuit, so it will trip for protection

30. The machine tool has static electricity or a tingling sensation when touched

1: Check whether the grounding pile is standardized and intact.

2: Check ifthe grounding wire is disconnected or disconnected.

3: Check ifthere is any cable breakage around the bed.

4: Check ifthe bed is overlapped with other equipment.

5: Check ifthe bed is overlapped with the steel structure factory building.

The grounding wire must be separate and can be shared with other equipment. The grounding pile must be a 25 round rod with a diameter of at least 2 meters or a 25 * 25 angle iron (made of copper or galvanized) with a grounding wire of at least 10 square meters. If the ground is too dry, salt water can be added to increase conductivity.

31. The servo is not powered on

1: Check the servo connector

2: Check the servo transformer

3: Check the AC contactor of the control servo power supply

4: Check the power button of the switch

The neutral wire of the servo electronic transformer must be connected, otherwise it is easy to burn the servo

32. The machine is not powered on

1 Check if the external power switch, power supply, and wiring are normal, measure the voltage to see if it is single-phase 220, three-phase 380, single-phase 3-wire, live wire, neutral wire, and ground wire. Three phase 5-wire, 3 fire, 1 zero, 1 ground,

2 Check the wiring of the electrical control cabinet for disconnection, virtual connection, contactor, whether the wiring is disconnected, virtual connection, check the emergency stop switch button, power switch button, whether the wiring is disconnected, whether the emergency stop button is a normally closed signal, whether the multimeter measures continuity, open the button, if it is non-conductive, replace the emergency stop button, if the power switch button is a normally open signal, press the button, measure continuity, if it is non-conductive, replace the button,

3 Check ifthe emergency stop button at the back is turned on. The front and back buttons are connected in series and turned on simultaneously,

4. Three protection device alarms

5. Individual drivers or other hardware are not powered on, and it is necessary to check if the screws connecting the live and neutral wires are loose

33.  Driver encoder alarm

1: Check ifthe wiring of the encoder on the driver end is correct

2: Check ifthe welding wire of the encoder at the motor end is correct

3: Swap the motor wires and coding wires with the same wattage on the driver end, and see ifthere is still an alarm

4: If the alarm is triggered, it means the driver is faulty and needs to be replaced. If the alarm is not triggered, check the wiring

5: The circuit is fine, replace the motor

34.  Issues with AC contactors

1: After the coil is powered on, the contactor does not engage or operates abnormally

2: The coil control circuit is broken; Check for any broken or loose wiring terminals, and replace the corresponding wires if there are any. If there is looseness, tighten the corresponding wiring terminal

3: Coil damage; Measure the resistance of the coil with a multimeter. If the positive value is o, replace the coil.

35.  Z-axis encoder has no response

1: The servo selection is incorrect. Cannot choose pulse type servo, choose servo with speed mode.

2: The servo parameter settings are incorrect. Not switched to speed mode.

3: The screw is stuck and cannot rotate.

4: Z-axis brake not opened

5: Bcs100 f3 testing up and down movement

6: Check ifthe driver is enabled

7: Check if output port 6 is enabled before enabling it

8: Check ifpin 6/ 15 is conducting

9: Enable to check the bcs100 parameter and verify if it is correct based on the motion check

10: Check whether pulses are emitted normally, and measure the pin voltage of 1/9, which is usually 120mv

11: Check if the zero speed clamp is open and measure pin 2/ 10.

12: Check ifthe pulse is received normally.

13: Shield the zero speed clamp, check the zero drift value, and add suppression parameters

36. Third axis alarm of laser cutting machine

1: Motor failure, transmission component damage, control system failure, etc. If the Y-axis and axis 3 of the laser cutting machine alarm simultaneously, it may be due to servo motor failure, transmission gear, bearing damage or wear, control system failure, wiring problems, transmission system failure, etc

2: The handling methods include checking the motor, limit switch, replacing related components, restarting the equipment, modifying driver parameters, etc.

37. Gas alarm valve does not work

1: Check ifthe alarm valve circuit is disconnected

2: Check ifthe alarm valve platform configuration is correct

3: Measure the continuity of the measurement line

4: Replace the control card port to see if it works

5: Replace the alarm valve

38. The cutting head keeps blowing air without moving

1: Check ifthe maximum height of the perforation is greater than the Z-axis limit stroke.

2: Check if the default parameter settings for global parameters are reasonable, and change the "directly follow maximum height" parameter

39.  No gas during cutting

1: Check ifthere are any issues with the cutting process

2: Check ifthere are any issues with the solenoid valve or proportional valve

3: Check ifthere are any issues with the wiring

4: Check ifthe gas is turned on

5: Check ifthe pressure switch is working properly

6: Have you done pressure calibration before

7: Select the correct gas, open the pressure gauge, observe the pressure,

8: Click to blow air, observe the board, pressure solenoid valve output port, whether it is open, measure whether the output port has a DC 24V power supply, if so, check the one-way valve, unplug the solenoid valve outlet air pipe, check whether the solenoid valve power line is loose, virtual, short circuited, and the voltage is normal. Replace the solenoid valve,

40. The software cannot be turned off after blowing air

1: Check if it is caused by interference from the controller receiver. Use the mouse to click and blow air to test.

2: Measure the voltage of the solenoid valve with a multimeter in the voltage range.

3: If there is voltage, it is a fault in the output port of the control card or the output relay is stuck.

4: If there is no voltage, it may be due to damage to the solenoid valve or foreign objects obstructing the solenoid valve from closing.

5: Remove the solenoid valve coil, open the base, check for any foreign objects around the rubber ring of the base, and clean it.

6: If the solenoid valve repeatedly closes and closes without any response, it may have internal adhesion. Replace the new solenoid valve.

41.  The proportional valve blowing is unstable

1: Check ifthere is any skin damage in the proportional valve circuit

2: Check for looseness in the proportional valve plug and slot

3: Check for detachment at the 24V/0- 10V weldingjoint of the proportional valve plug

4: Blow air at a certain pressure to measure 0- 10V within the specified range

5: Measure the continuity of the four core wire of the proportional valve

6: Replace the proportional valve wire with shielding layer and replace the anti-interference tin foil control wire

42. Abnormal noise from proportional valve

1: Please confirm the correct wiring of the proportional valve first (taking some four wire proportional valves as an example, "24V" is connected to 24V of the switch power supply; "0V" is connected to 0V of the switch power supply and the board)    DA - on the card; Connect "IN" to the DA+on the board; 'OUT' is not connected. In the software file → Diagnostic Tool -  Control Card Monitoring, change the analog signal assigned to the proportional valve to 0 and observe if there is still any  abnormal noise from the proportional valve

2: When the analog signal is 0, there is still abnormal noise. After cutting off the power, remove the analog DA line between the board and the proportional valve. observe

Is there still any abnormal noise.

3: Dismantle the proportional valve and clean the internal structure

4: Replace the proportional valve

Software

43. There is no control card when opening the software

1: Control card to clean pin insertion and removal again.

2: Reinstall the software.

3: Reinstall the computer system.

44. Bus system alarm not found slave station, data reception timeout

1: First, scan in the platform configuration to see if it can be scanned. After the scan is successful, it needs to be added

2: If the hardware cannot be scanned, check whether the power supply of the expansion card is normal, and whether the network port connection is normal. If the yellow light on the network port is on and the green light is flashing, it is a normal connection. If the flashing is not normal, it is a problem with the hardware device, such as the communication module of the network cable, network card or expansion card. Need to replace and troubleshoot

45. The system enters demonstration mode

1: Open the system software, observe whether the confidentiality has expired, encryption has expired, contact the business, decrypt,

2: Do not display the serial number, reinstall the software and check if the software driver has been successfully installed,

3: Open the computer, clean the internal dust, and when opening the software, the pop-up window does not detect the motion control card. The system will run in demo mode and return to the desktop. Right click on My Computer, open Device Manager, and check ifthe computer recognizes the motion control card.

4: PCI devices with exclamation marks can be found: exclamation marks indicate that the driver is not installed properly. If it  is  a  newly  installed Windows  system,  please use  the  driver  wizard  or  other  driver  detection tools to check if the computer's driver is installed properly. If the device suddenly encounters problems during normal use, please try reinstalling the software and selecting driver installation.

5: You can find the BOCHU motion control card with an exclamation mark, indicating abnormal driver installation. Right click to uninstall the driver. If it is a 1204/ 1205 motion control card, please download and install CypCut software version 658.10. Please download the latest version of CypCut software for other boards

46. Reminder Ethercat: Data reception timeout alarm

Usually, when adding an expansion card (for 1000 systems, add 4516/4508 card for automatic focusing; for 2000 systems, add 4516/4508 card for tube integration), if the machine suddenly loses power, the network cable will disconnect, the data connection will time out, the machine will restart and power on, and the software will restart. This is generally a solution; If there is an error in the length of network data frames, excessively long network cables, or severe interference during cutting, replace the short network cable, restart the machine and power on, or restart the software, it is generally resolved

47. The limit signal is unreliable and the limit remains valid

1: Find the corresponding limit position of the software error, remove the limit without interference from the installation position, test the limit with metal material to see if it is normal. If the limit light is on or off near the metal, it is judged that the limit function is normal. If the limit installation position is too close to the sheet metal and causes a false alarm, adjust the distance of the limit lock nut again.

2: If there is no response near the metal limit, it is necessary to check whether the power supply of the limit is normal.  Generally, three wires are connected to 24V in brown, 0V in blue, and signal wire in black. First, measure whether the  voltage of the brown and blue wires is 24V. If the voltage is normal, the limit is damaged and replaced; If there is no voltage, investigate the power supply line problem;

3: The limit power supply is normal, the function is normal, but the system still alarms. At this time, it is necessary to turn on the motion control card monitoring or terminal board indicator light to check whether the signal is fed back to the control card. If the indicator light does not change, it is necessary to check whether the high and low levels are wired correctly and whether the signal line is disconnected.

48. The alarm driver of a certain axis in BOCHU software has no alarms

1 Swap the two axis drive to the pulse communication line of the board, and restart the software to see if there is an alarm 2 Check the driving parameters

3 Clean and wipe the computer board slot

4 Update software

5 Redo the system

6 Test the continuity of the 62 core communication cable

49. The full stroke three chuck returning to the origin indicates that the height adjuster is not in the stopping position, and there is a conflict in the y3 coordinate

The full stroke three chuck returning to the origin indicates that the height adjuster is not in the stopping position, and the Y3 coordinate conflicts with the inside of the cutting head, triggering an alarm: the height adjuster is not in the stopping position,

Reason for alarm: It has been detected that the Z-axis and X-axis are not in the stopping position, and the Y3 coordinate is greater than the machining position coordinate, which poses a risk of colliding with the cutting head. The Y3 coordinate should not be allowed to continue to increase to protect the cutting head. When Y3 returns to the origin, if the coordinates are greater than the machining position coordinates, an alarm will be triggered. Perform Y3 negative jog first to make the alarm disappear, then the X-axis adjuster returns to the origin first, and then the Y-axis returns to the origin

50. How to level the follow-up bracket

In laser cutting machines with multiple longitudinal follow-up brackets, it is common to encounter situations where the height  of the follow-up brackets varies due to the  installation height of the bracket axis  sensor.  Because the bracket movement in TubePro will cause the raised brackets to rise to the same height, it is necessary to modify the retraction distance of each axis to make them reach the same height. The operation is as follows:

① Move the bracket to the same height.

② Install standard pipes on adjacent supports and place level gauges on the pipes.

③ Step by step move each bracket to make the pipe horizontal.

④ Record and adjust the retreat distance of the bracket axis accordingly (modify in Platform Configuration Tool → General Axis).

⑤ All brackets return to their original position.

Specifically, for mechanisms with automatic feeding, the bracket closest to the middle card can be slightly lower than other brackets to prevent the pipe from falling and colliding with the bracket during the feeding process.

51. Seven axis pulling prompts that the pipe is too short to process the remaining tailings

When cutting with three or two chucks, the system may pause the machining process due to a pop-up message saying "The given motion command has exceeded the travel range!" or the following log prompt appearing when it determines that the remaining length of the pipe in the mechanical coordinates is less than the length on the CAD drawing.

Automatic  avoidance error: The remaining part is  3000.00 uncut,  and  the remaining pipe  is  only 2686.00,  making it impossible to cut the tail material. The maximum value of part Y is 8894.00, which is greater than the positive stroke of Y1 axis 8800.00

Cut part length=Y-axis positive stroke - Y-axis current coordinate. Specifically, after enabling avoidance: the length of the cutting part is equal to the positive stroke of the Y-axis after avoidance - the current coordinate of the Y-axis.

Please confirm ① Is the step distance correct ② Is the Y-axis positive stroke setting reasonable. Or when the difference between the length of the part and the remaining pipe length is small, adjust the clamping position of the main card claw appropriately (the pipe tail should not extend to the deepest part of the card claw) to achieve the cutting purpose.

52. Automated linkage equipment, the main body and auxiliary are separate, and the feeding effect is unstable

Kaiping  equipment  such  as  rolling,  automatic  feeding  rack  feeding  through  chuck,  etc.  requires  good  alignment  and concentricity. Although there is auxiliary guidance, the alignment must meet the standards. For example, when installing Kaiping equipment abroad, the offset at the end of the alignment must be within 4mm for equipment over 10 meters long. In addition, the horizontal alignment should be on the  same plane, and the foundation and centerline  should be made in advance. For example, the material rack and chuck for single axis pulling need to be precisely concentric with each other.

53. Remind that the upper and lower limits of Y+-, X+-, and Z are valid, X,Y,Z, 4-axis servo, alarm

1: Check ifthe emergency stop is turned on, both in front and behind the exchange, and ifthe power switch is turned on,

2: At the same time, an alarm appears and the system control card is not powered on. Measure the 24V power input and adjust the potentiometer of the power box if it is lower than 24V. If it is ineffective, replace the power box

54. Flight cutting, missing graphics, inaccurate cutting dimensions

1: Open the control card monitoring, send pulses on the X andY axes, check the feedback pulses. If the direction is opposite, open the software, change the axis pulse direction, and solve the problem

2: Cut a straight line of 1000mm and measure the actual size. The actual size is multiplied by the current movement amount/software set size of 1000 to obtain a new movement amount. Change the software platform configuration for each movement amount.

3: As the focus changes, the slit becomes larger, and compensation is set,

4: Diagonal deviation, 1-2mm, platform configuration, change vertical correction, deviation too large, check the slider and screws for looseness, loosen the Y-axis slider screw on the other end, reducer, modify the Y-axis servo direction, same direction, fine tune the crossbeam, and then modify the Y-axis direction in the opposite direction to solve the problem

55. Positive and negative limit alarms after sudden power outage

1: After a sudden power outage in the system, there is a possibility of losing the backend configuration file  and reconfiguring the backend parameters

2: Check ifthe induction switch signal is normal,

56. During the cutting process, the cutting head keeps lifting upwards

1: Calibration issue: After replacing the nozzle, the floating head capacitor calibration was not performed again.

2: Laser scattering onto the nozzle or abnormal blowing can cause an abnormal increase in nozzle temperature (above 100 ℃), changing the capacitance of the cutting head.

3: Mechanical parameter screw pitch setting error

57. Walking along the border without moving

1: Check ifthe drawing size exceeds the travel distance

2: Check if other drawings interfere and cause the travel to exceed the range

3: Create a new interface, import the drawing and select only the selected graphics for processing, or change the docking point:

58. Do not move while searching for edges

1: Check the docking point settings

2: Check ifthe edge locating point exceeds the travel range

3: Check ifthe platform configuration settings have selected quick edge searching or special edge searching

4: The capacitance value varies greatly, causing interference

5: Contact the manufacturer of BOCHU

59. After power on, the Z-axis moves in one direction

1: Check ifthe mechanical parameter settings are correct

2: Check ifthe screw pitch setting is correct

3: Check ifthe pulse count and driver parameters are correct

4: Check ifthe servo cable connection is reliable, unplug and plug the servo cable again

60. Obvious pause during processing

1: Check the cutting process residence time and whether to increase the cooling point

2: Global parameter check for gas opening delay, first point gas opening delay

3: Check PLC process analysis issues

4: Wait for the focus to be in place and check the positioning speed and acceleration of the cutting head configured in the background

Craftsmanship

61. Unstable cutting 

1: Check whether the air pressure focus is too high in the process and whether the nozzle is hot during the cutting process2: Is the nozzle damaged, and is the ceramic ring damaged or loose

3: Is there a phenomenon of explosion during perforation

4: Is there rust on the customer's sheet metal

62. Cut the sample and hang slag on one side

1: Focus zeroing check nozzle roundness

2: Set the appropriate power and duty cycle for spot shooting to see if the light spot is in the center or not

3: Adjust the center light spot to the center

4: Check the verticality of the cutting head

63. Continuous cutting

1: Check ifthe process is normal

2: Check ifthe nozzle is blocked and ifthe ceramic ring is functioning properly

3: Check the light center and inspect the protective lens

64.  Cutting thick plates and blasting holes

1 Is the perforation frequency too high? It is possible to reduce the perforation frequency and control the duty cycle of the power appropriately.

2 Reduce the perforation pressure appropriately based on the height at the time of perforation.

3 Increase the time for perforation stopping and blowing air

4 Check the protective lens

65. Thick plate cutter with tumor

1: The 8000 system can enable intelligent knife retraction.

2: Enable slow start and retract function

3: Enable offlight delay in the process

4: Enable overcutting

66. Poor cutting effect of high-power carbon steel bright surface

1: Check the nozzle for damage, gaps, and collisions

2: Check ifthe lens is intact and free of stains

3: Use transparent tape to stick on the nozzle, set the appropriate power and duty cycle to emit visible light, with the focus on whether it is in the center or not

4: Adjust the light spot to the center according to the X/Y direction on the cutting head

5: Confirm if the board is laid flat

6: Select the appropriate cutting nozzle based on the cutting parameters, and use a focal point that does not exceed the size of the nozzle (i.e. the nozzle is 1.5 for a single spray, and the focal point should not exceed+15)

7: Observe the cutting sparks. The spark near the upper end of the back of the board is perpendicular to the nozzle, while the spark at the lower end swings backwards and bifurcates, spreading to both sides

8: Use appropriate air pressure. If the air pressure is too high, the texture will become rough, and if the air pressure is too low, the cutting will not be transparent

67.  Carbon steel plate corner overheating

1: Slow corner cutting speed leads to overheating, resulting in energy concentration

2: Adjust the power curve to solve the problem.

3: Add circular overcutting to solve overburning

4: Corner with cooling point, duration not less than 1000ms

68.  Misalignment of cutting components

1: Enter the diagnostic tool and enable trajectory information collection Select in sequence to enable information collection during the processing, command information collection, feedback information collection, and laser status detection

2: After the deviation occurs, record the computer time, find the NC file corresponding to the time, and click to locate the folder. Copy the corresponding date folder to the desktop.

3: Import the NC file saved during processing, where commad is the system instruction and encoder is the feedback value from the servo encoder. Compare the two images with the original CAD image, and if they match, inspect the machinery and check for any gaps in the motor reducer. If the original image is consistent with the system instructions and the servo encoder feedback is abnormal, then check the servo. If there is a deviation between the system instructions and the original image, you can try reinstalling the software

69.  Frequent air cutting and nozzle damage

1: The sensitivity of the amplifier is too low and the induction is not sensitive. Adjust the sensitivity appropriately

2: Due to layout reasons, the common edge graphics did not have micro connections or excessive cutting, and the cutting rocker collided with the nozzle

3: The collision alarm delay is too high, and the air cutting is generally set within 200ms.

4: The vibration suppression level is too high, and the cutting head is not sensitive,

5: The nozzle height is too low

70. Thin plate cutting has burrs

1: Ensure that the optical center, nozzle, lens, concentricity, laser power, etc. are okay

2: Find the actual zero focus position, corresponding to zero focus in the background

3: Match the appropriate speed and nozzle height according to the process table

4: Ensure that the air pressure and gas pipeline are functioning properly

5: Special boards will have corresponding fluctuations. Pull down the focus to reduce the speed, and ensure the cutting effect through the power curve.

Laser head

71. Coaxial misalignment often occurs

1: Is the nozzle loose and has the cutting head collided

2: Check if the ceramic body is loose or damaged. The Jiaqiang cutting head needs to replace the ceramic body with its own sealing ring, which needs to be removed. Installing the sealing ring will cause the locking ring to not lock reliably

3: Check ifthe connection between QBH and cutting head is securely locked

4: Component damage during adjustment

72.  Laser head reports high temperature

1: Firstly, check if it is caused by the air circuit. If the lens turns yellow and can be wiped off with a cotton swab, it indicates that there is a problem with the air compressor

2: Check the perforation process and cutting process

3: Replace original lenses for testing

4: After replacing the new lenses, print photographic paper to test whether the internal lenses are damaged

73.  Wave cutting head gas under pressure alarm

1: Check the air source and ensure stable pressure output during the cutting process. If the pressure continues to decrease, replace the air source.

2: Replacing the nozzle without calibrating the air pressure

3: There is interference because oxygen positive focus cutting requires a relatively low air pressure, and the Da voltage output is only a few tenths of a pair, causing unstable output voltage. Signal amplifiers can be added for processing

4: Parameter settings on the air pressure test interface are incorrect, and the closed-loop control on the air pressure test interface has been changed to open-loop control

74. Lower protection lens contamination

1: Is the air circuit of the air compressor clean and free of water and oil

2: One way valve failure, gas leakage

3: Damaged solenoid valve and proportional valve

4: Check the machine filter element

5: Cutting gas impurities

6: Improper replacement of protective lenses

7: The sealing ring and spring plate of the pneumatic joint are worn or damaged

8: Air path blockage

9: Improper debugging of cutting parameters leads to slag reflux

10: Check ifthe pan plug seal is loose due to wear and tear, and ifthere is any air leakage

75. There are burn points on the surface of the collimating protective mirror

1: Improper insertion and removal of fiber optic cables resulted in contamination of the QBH end crystal. Follow the standard procedure and insert the fiber optic cable horizontally;

2: During the replacement process of the protective mirror, it was contaminated. Check the sealing condition and clean the area around the laser head before inserting or removing the protective mirror;

3: The sealing at the connection between the QBH end and the laser head is not good. Follow the standard operation and pay attention to the sealing situation at the connection between the QBH and the laser head. After installing the laser head, use masking paper to seal the connection;

4: Loose fiber optic cable, re tighten the fiber optic cable

76.  Cutting head limit alarm

1: Check the actual focus position, whether the limit is triggered, open the focus control, move the focus, and click the focus to return to zero.

2: Check the software platform configuration, focus control, limit alarm logic, and modify the corresponding logic to be normally open or normally closed,

77.  Cutting head servo alarm for Yaskawa, common C90.710 in Yaskawa, does not display RUN

1: C90 encoder line communication error, check if the encoding line is worn off,

2: Check ifthe two ends of the multimeter measurement line are conductive and if the coding line connection is loose

3: Everything is normal. Check if the cutting head nameplate is from Yaskawa Electric

4: 710 overload, check the motor power line UVW, the wire is worn off, measure with a multimeter to see if it is conductive, confirm if the phase sequence of the UVW wiring is normal, check if it is in the limit position, power off, manually rotate  the screw to the 0 mark, and sense if the screw is stuck,

5: Measure the resistance values between UVWs to see if they are the same. If they are different, it may indicate a motor malfunction.

78.  Fourth axis (focusing axis) servo alarm

1: Measure whether the cable from the servo drive to the servo motor is connected properly

2: Check ifthe cables of the servo drive are short circuited and if the cables are damaged

3: Are the plugs A+A-B+B - and the motor side connected properly

4: Check ifthe plugs of the servo drive and motor encoder are connected properly

5: Check ifthe limit switch signal light on the circuit board is reversed

6: Manually adjust the focus of the laser head to see if it moves up and down normally

79.  Cutting the mouth generates heat

1: Check the process

2: Check ifthe focus pointer is correct

3: The coaxial deviation of the cutting head causes heating or burning when light hits the nozzle

4: Nozzle deformation, ceramic body damage, resulting in optical path deviation

5: Protect lens contamination/lens quality issues

6: Internal lens contamination, observe whether the red light is abnormal

7: Fiber optic crystal/protective window damaged

8: Highly reflective materials

9: High power cutting without cooling gas cooling

Laser 

80. The laser does not emit light

1: Check ifthe laser is powered on correctly

2: Is the signal line wiring correct

3: Is the platform configuration correct

4: Open laser monitoring to view alarm information

5: Contact Ruike for resolution

81.  The laser output is very weak

1: Check ifthe optical pathis offset and carefully adjust the optical path.

2: Focus on whether the collimating lens is contaminated or damaged, clean or replace the lens.

3: Has the focal length of the device changed? Adjust the focal length again

4: Whether the focusing lens is contaminated, clean the focusing lens, or ifthere is water mist condensation.

5: Check if the cooling water quality or temperature is normal, replace and clean the cooling water to reach the normal temperature.

6: Whether the cooling water is circulating: unclog the cooling water circuit

7: Check ifthe laser power supply is powered on and ensure that the laser power supply circuit is functioning properly.

8: Is the overall temperature too high

9: Shut down to lower the temperature

10: Strengthen ventilation and machine heat dissipation

11: Add air conditioning room to adjust the ambient temperature

82.  Laser leakage

1: Remove p+p - and measure if there is still voltage and if there is still light leakage. If there is still light leakage after removing the PWM line, first check the control mode of the laser. Some can emit light without PWM signal

2: Fly cut leakage light inspection encoder detection, possible encoder feedback issue

3: When there is no input or output, the P+light is on. If there is a flying cut, P+P - will continue to output. Replace the BOCHU board card

4: Parallel 1000 Ω resistance test between p+p -

5: The laser itself causes light leakage in the equipment

6: If it is 232 Bochu backend configuration, ignore serial port feedback

7: The shielding layer of the signal line of the laser must be grounded

83. Laser reports high temperature

1: Check ifthe water cooler is operating at a normal temperature

2: Check ifthe water pipe connecting the water-cooled machine to the laser is normal

3: Check ifthe water flow rate is normal

4: Check ifthe water cooling module is damaged

5: Whether the temperature setting of the water cooler meets the standard (high-power laser water temperature set at 23 degrees plus or minus 1)

84.  Laser condensation alarm

1: The cooling temperature of the laser  should be set according to the laser manual provided by the manufacturer, and should not be changed arbitrarily

2: Install air conditioning room

3: Dry nitrogen or air can be supplied to the CDA interface

85. Cutting interruption light

1: Firstly, the machine tool should be well grounded as a whole, with a requirement of ≥ 6 square meters. In this issue, the laser and distribution cabinet need to be well grounded. (Generally requires grounding resistance ≤ 4 Ω)

2: Ensure that the shielding layer of the laser controlled by the RS232 communication line is well grounded

2: BOCHU board needs to be well grounded

3: Measure whether the voltage of P+and negative pole is normal, and ensure that the PWM signal line is well shielded. For example, the 3766 board needs to determine ifthere is a problem with the solenoid valve

5: Control line with magnetic ring to shield interference signals.

6: If it still doesn't work, you can only contact the laser after-sales service to disassemble the laser and replace the signal board.

Water cooling machine 

86. High temperature alarm of water cooler

1: Need to remove the surrounding filter screen for cleaning

2: The water cooler cannot be placed near the wall

3: Check ifthe fan of the water cooler is working properly

4: Check the compressor of the water-cooled machine

5: Clean the filter element of the water cooling machine

6: Check ifthere are any bends in the water tank pipes

7: Check ifthe water tank sensor is working properly

8: Continuously rising high temperature, it is necessary to measure whether the voltage at the customer's site is normal. If it cannot reach the ideal voltage of 220 or 380, the power line of the water chiller needs to be  supplied through a voltage regulator.

9: Is the water level within the specified scale before turning on the laser. If the water level is below the warning line, add cooling water.

10: Regularly replace the circulating cooling water of the chiller, and it is recommended to use purified water or distilled water. Once in January

87.  Alarm for normal temperature water flow in the water tank

1: Check ifthe water tank switch is turned on

2: Check ifthe return water flow of the water tank is normal

3: Check ifthe laser head water pipe is bent or blocked

4: Check ifthe throttle valve is fully open

5: Check ifthe sensor is damaged

88.  Low temperature water flow alarm of water cooler

1: Check ifthere is a broken water pipe

2: Pull out a water pipe and drain the water, then use an air gun to blow away any debris inside

3: Open the filter element, clean and check for blockage

4: Open the sheet metal and find the flow valve for adjustment

5.: Damaged water pump

89.  Hanli water-cooled machine reports E07 (compressor alarm)

1: Clean up dust and surrounding debris

2: Check ifthe copper tube radiator fins are leaking fluorine.

3: Good ventilation of equipment

Computer

90. Large surround monitoring

1: Check ifthe camera is not connected to the Ethernet cable

2: Is the camera power box virtually connected

3: The camera is damaged and the monitoring does not display

4: The computer network IP is not set

5: Camera not set to network

6: Software IP not set

7: The network cable of the switch is not connected

91.  Computer host lagging

1: Connect the computer ground wire to the ground wire busbar

2: Computer cleaning

3: System reinstallation

4: Software Update

5: Clean up the memory module

92.  Code appears on the blue screen of the computer

1: Computer shutdown and restart

2: Use antivirus software to remove trojans and viruses from your computer

3: If there are multiple security software in the computer, it is easy to cause software conflicts and incompatibility. It is necessary to uninstall the software and only keep one security protection software

93.  USB signal is sometimes good and sometimes bad

1: USB cable damaged

2: The computer USB port is damaged

3: USB extension cable has interference

94.  Display screen flickering

a. Check ifthe power supply of the display screen and the high-definition video cable are properly plugged in

b. Check ifthe grounding wire in the customer's factory area is standard

c. Check ifthe screen is damaged

d. High definition cable with magnetic ring and tin foil

e. Replace the high-definition cable for testing

Air compressor

95. Air compressor alarm host is unbalanced

By entering the monitoring interface through the air compressor system, observe the maximum difference in three-phase current of motor ABC. The default alarm value is 10A, and the maximum allowable difference is 14A. Any larger value will burn out the motor. If the alarm value is changed to 14A and the air compressor still alarms, it indicates that the three-phase load of the customer's factory power supply is unbalanced. One phase of the load is too large, and the customer's electrician can only change the load phase line to balance the three phases, or upgrade to a variable frequency air compressor

After-Sales FAQ Manual（Electronic version）

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