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Question #: 14559

Question: Using the AWC708, my laser will not fire. The wiring seems correct

Current Solution

Is there a test button on the laser tube power supply? You can test the laser output by using the test button. This will help you determine if the laser tube is bad, or if you have wiring issues. Sometimes, wiring to he TL may not work as some controllers are set to active low, so you may need to wire the controller to TH instead.

Additional Information:
Additionally, the mA on the high tension line does not have any relationship to the digital trigger signal from the controller to the power supply.

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Other Possible Solutions to this Question

  • laser wont fire using the trocen awc...double checked wiring and all seems correct to diagram

    Is there a test button on the laser tube power supply? You can test the laser output by using the test button. This will help you determine if the laser tube is bad, or if you have wiring issues. Sometimes, wiring to he TL may not work as some controllers are set to active low, so you may need to wire the controller to TH instead.

    Additional Information:
    Additionally, the mA on the high tension line does not have any relationship to the digital trigger signal from the controller to the power supply.

    Click the link to respond:
    laser wont fire using the trocen awc...double checked wiring and all seems correct to diagram

  • laser wont fire...double checked wiring and all seems correct to diagram

    Is there a test button on the laser tube power supply? You can test the laser output by using the test button. This will help you determine if the laser tube is bad, or if you have wiring issues. Sometimes, wiring to he TL may not work as some controllers are set to active low, so you may need to wire the controller to TH instead.

    Additional Information:
    Additionally, the mA on the high tension line does not have any relationship to the digital trigger signal from the controller to the power supply.

    Click the link to respond:
    laser wont fire...double checked wiring and all seems correct to diagram

  • I am building my own laser and have watch your trocen videos.....but laser wont fire...double checked wiring and all seems correct to diagram....but the kit i bought was for a 40 watt and i amd using a 60 watt power supply and tube.....What size does the power switching unit need to be ....I think mine is too small for the trigger mA

    Is there a test button on the laser tube power supply? You can test the laser output by using the test button. This will help you determine if the laser tube is bad, or if you have wiring issues. Sometimes, wiring to he TL may not work as some controllers are set to active low, so you may need to wire the controller to TH instead.

    Additional Information:
    Additionally, the mA on the high tension line does not have any relationship to the digital trigger signal from the controller to the power supply.

    Click the link to respond:
    I am building my own laser and have watch your trocen videos.....but laser wont fire...double checked wiring and all seems correct to diagram....but the kit i bought was for a 40 watt and i amd using a 60 watt power supply and tube.....What size does the power switching unit need to be ....I think mine is too small for the trigger mA

  • My limit switches keep tripping a reset. Wiring all seems right. Could there be another cause I can check?

    http://buildyourcnc.com/PrimeronHomingandLimitSwitches.aspx
    There is a pin setting in Mach3 that says how to react to the inputs from the switches. Your setting is probably wrong as the trigger happens immediately.

    You may want to think about shielded wire and/or a resistor on each limit switch line. If there are stray wires, connect them to ground. Additionally, the shield from the shielded cable insulation should alse connected to ground at both ends.
    Try upping the Debounce interval in Mach3. You have to adjust the debounce interval. You go to config,general config, and it is in the top right corner. I set mine to 100 and it seems to work well.

    Additional Information:
    how to solution cnc revo 540 limit tripped error?


    Additional Information:


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    My limit switches keep tripping a reset. Wiring all seems right. Could there be another cause I can check?

  • my motor only goes one direction. I checked all the wiring and it's correct. Any suggestions?

    The video showing the hookup of the large motors showed a sequence that was not correct, or I totally misread what was recommended. I hooked the first motor up that way and it would only go in one direction in a very jerky mode. I confirmed that i had hooked it up the way the video showed, disconnected the wiring that runs through to the motor and reconnected it, thinking maybe a cold solder joint was the problem. No good. I finally went to the motor page that showed a different connection pattern. I tried the one that the motor page said to do, and it works smoothly and in the right direction now.

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    my motor only goes one direction. I checked all the wiring and it's correct. Any suggestions?

  • My Z-axis seems to be reversed on a fully assembled machine... I've tried reversing it in the config settings on Mach 3, but to no avail. What do I need to do? IS this a wiring issue that was not done correctly at the factory?

    If your Z axis is moving in the opposite direction, go into Mach3, click on config, ports & pins, then click on the motor outputs tab. You will see the axes labeled on the left and the parameters labeled on the top of this dialog box. Toggle the dir low active for the z-axis.

    Additional Information:
    What if I'm having the same issue on a different axis?

    Additional Information:
    You can follow the same procedure as with the z-axis. When you get to the motors outputs tab, toggle the dir low active checkbox for the axis that you would like to change.

    Additional Information:
    sdf

    Additional Information:

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    My Z-axis seems to be reversed on a fully assembled machine... I've tried reversing it in the config settings on Mach 3, but to no avail. What do I need to do? IS this a wiring issue that was not done correctly at the factory?

  • why did the laser on my blacktooth slowly lose it's power during a cut? Currently does not fire. X/Y jogs fine.

    There could have been a small, slow leak in the tube, releasing the CO2 gas. The power supply could have also suffered from an electrical issue.

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    why did the laser on my blacktooth slowly lose it's power during a cut? Currently does not fire. X/Y jogs fine.

  • Where are the wiring diagrams for the blackTooth laser cutter?

    You can find the wiring diagrams for the blackTooth on step 105 and 106 on the list of instructions on the blackTooth page. Step 105 pertains to the parallel breakout board and step 106 pertains to the USB interface board.

    Additional Information:
    wire size

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    Where are the wiring diagrams for the blackTooth laser cutter?

  • Mach3 USB interface board. Could you please give me the correct wiring configuration for tool prob?

    Depending on the probe that you have, you should have two wires coming from the probe. One of those two wires will need to be connect to an input pin as shown in this wiring diagram (the diagram show the probe connected to pin I4):
    https://www.buildyourcnc.com/Documents/Electric%20Wiring%20Diagram.pdf

    The other pin is connected to V-. Please make sure that you have 24V connected to the V- and V+ on that side of the Mach3 USB board.

    The way the probe works is when the probe is in contact with an object, a specific spring mechanism will cause the input pin to be connected to the V- (close the circuit). When Mach3 senses an active low on the input pin, mach3 knows that the probe has made contact (closed the circuit).

    If your probe is used as a Z-Axis zero plate, then the concept is the same, but the end mill is connected to V- and the plate is connected to the input pin. If the plate comes in contact to the end mill, then the circuit is closed and mach3 will sense an active low on the input pin.

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    Mach3 USB interface board. Could you please give me the correct wiring configuration for tool prob?

  • How to wire the Laser Power Supply with an arduino & GRBL ? (I'm not using a blacktooth laser cutter)

    There is a th or tl on the laser power supply that serves as the trigger on a high or low signal. There is also a potentiometer "in" terminal that will accept a variable signal from 0v to 5v to control intensity. You can use either of these features to fire the laser tube.

    If you have gotten grbl to work, then, no doubtedly, you have the expertise to know the output features of grbl. If grbl allows a pwm output, you can tie this to the potentiometer terminal on the power supply. Otherwise, you will need to use a digital output to control the power supply using th or tl.

    Additional Information:

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    How to wire the Laser Power Supply with an arduino & GRBL ? (I'm not using a blacktooth laser cutter)

  • WHERE ARE THE WIRING DIAGRAMS FOR BLACKTOOTH LASER CUTTER IN INSTRUCTIONS?

    You can find the wiring diagrams for the blackTooth on step 105 and 106 on the list of instructions on the blackTooth page. Step 105 pertains to the parallel breakout board and step 106 pertains to the USB interface board.

    Additional Information:
    wire size

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    WHERE ARE THE WIRING DIAGRAMS FOR BLACKTOOTH LASER CUTTER IN INSTRUCTIONS?

  • What is the wiring configuration for limit switches on the laser controller?

    If you are using the AWC708 or equivalent laser controller, the limit switches will connect between the EL input terminal and the GND terminal in normally open (NO) connection. Most limit switches can be connected as NO, or normally closed (NC).

    For instance, a limit switch for the X- limit will be connected from the ELX- terminal to the NO connection of the limit switch, then a connection from the GND terminal on the laser controller to the COM connection to the same limit switch.

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    What is the wiring configuration for limit switches on the laser controller?

  • Have checked stepper motor wires dozens of times and they are wired like diagram says. Stepper motors will not turn under power. I am using laser control option. What should I do?

    This sounds like a problem with the step (pulse) signal. The driver motors receive two signals from the computer via the board -- one is high or low and tells the motors which direction to turn, one is a square wave pulsed signal(quick that tells the motor to turn or a constant high signal that tells the motor to maintain its position. With an oscilliscope you can check for proper signal at the board. If you bought the board from us, please contact us to arrange a return authorization.

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    Have checked stepper motor wires dozens of times and they are wired like diagram says. Stepper motors will not turn under power. I am using laser control option. What should I do?

  • would like to install 50k.potentiometer (2.45)to the back of my temp. gauge to set correct reading. will this work?

    Could you please clarify the specific application and the desired outcome?

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    would like to install 50k.potentiometer (2.45)to the back of my temp. gauge to set correct reading. will this work?

  • I AM USING A XYLOTEX 3 AXIS BOARD AND WANT TO ADD ANOTHER MOTOR SLAVED THE X-AXIS. WILL DRIVE CW230 WORK?

    If the pins from the terminal block on the side of the board are outputs, or at least 2 of them are outputs, then you can connect our modular driver to the board (example: cw230). If they are all inputs, then you would not be able to connect an external driver.

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    I AM USING A XYLOTEX 3 AXIS BOARD AND WANT TO ADD ANOTHER MOTOR SLAVED THE X-AXIS. WILL DRIVE CW230 WORK?

  • When using the laser controller, what does "engrave beyond border limit" mean?

    LaserCAD: Engrave beyond border limit.

    This is caused by a sweeping motion that is too fast and where the acceleration is too slow. My recommended action would be to keep the acceleration the way it is and slow down the speed of the engrave sweeping motion. I typically use around 200-300 mm/sec and make sure that the axis sweep motion is the nozzle along the gantry, not the gantry itself. The gantry will have too much inertia to sweep, but the nozzle is very light and can sweep very quickly.

    Specifically, what is happening with the engrave beyond border limit is where that axis is not able to slow down fast enough to not hit the border. For instance, imagine a car going 100 mph and it needs to stop within 30 feet. This would not be possible because the deceleration is not high enough.

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    When using the laser controller, what does "engrave beyond border limit" mean?

  • I am wiring my estop to the redleaf NC closed using pin 13 and ground to red side of the button is that all that needs to be done

    Using pin 13 should be fine as long as it is enabled in Mach3 for the Estop. Go to Mach3, Config> Ports and Pins> Input Signals and make sure EStop is enabled and pin number is set to 13.

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    I am wiring my estop to the redleaf NC closed using pin 13 and ground to red side of the button is that all that needs to be done

  • Why is my 4x8 blackfoot not cutting shapes correctly. I have ran the moter test in Mach 3 and still cuts terrible

    Dealing with the machine not cutting the design you may have correctly, could be a variety of things.
    Most common, is the machine is not properly calibrated or tighten correctly (in specific areas).
    To calibrate the machine, go to the settings(alt-6) page, and click the set steps per unit(right above the reset button). You will receive a tab which asks to select the a axis, once selected it will ask how much you plan on moving. Here you will enter a value of inches/mm's. The machine will move what it thinks is the correct length and might be dead on or might be off, we recommend doing this about 2-3 times per axis, and in long distances. (ex: for the BF you may do 2-4Ft on y-axis and 5-8Ft on the x-axis)

    Make sure the v-groove bearings are tight, on the y-axis plate and z-axis, as well as the v-groove bearings on the gantry legs. (test: try moving them with your finger, if tighten correctly they will not move)
    Also having the chain too loose will not move the machine enough to create your design, the chain should have about a 1" - 1"-1/2" of slack in the middle of the table when the gantry is in either of the far ends of the table. (larger machines will have a bit more slack).

    Trying to run the machine faster then the bit can cut, or running with a old endmill/router bit.
    This is a rare occurrence but is seen, having the correct endmill, feedrate, and RPM will have a great impact on your cut. They all work together in one complete conjunction, if one is off they will all be working incorrectly.
    Each endmill will have its manufactured specifications.

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    Why is my 4x8 blackfoot not cutting shapes correctly. I have ran the moter test in Mach 3 and still cuts terrible

  • Please advise correct wiring from PLANETCNC USB controller Mk3/4 to motor driver.