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Question #: 13656

Question: limit switches tripping from interferencee

Current Solution

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?


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Other Possible Solutions to this Question

  • PROBLEM WITH LIMIT SWITCHES TRIGGERING

    Are you using shielded wire? If so, take the shield to ground. If there are any other wires in the cable that is not being used, ground those as well. The customer can also try moving the cables as far away as possible from the motor wires and motors.

    Additional Information:


    Additional Information:

    Click the link to add information to this solution:
    PROBLEM WITH LIMIT SWITCHES TRIGGERING

  • THE SWITCHES KEEP TRIPPING! AT TIMES IT IS LITERALLY AS SOON CLICK RESET ON MACH 3 THEY TRIP AGAIN.

    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?


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    Click the link to add information to this solution:
    THE SWITCHES KEEP TRIPPING! AT TIMES IT IS LITERALLY AS SOON CLICK RESET ON MACH 3 THEY TRIP AGAIN.

  • HOW DO I SET THE DIP SWITCHES?

    blueChick:

    X-axis
    “CW230 (3.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100
    Mach3 Motor Tuning: 1422.22 steps/in

    Y-axis
    “CW230 (3.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100
    Mach3 Motor Tuning: 1422.22 steps/in

    Z-axis
    “CW230 (3.0A) Driver”
    Set to 1/4 Microstep, 2.7A
    Dipswitches: 10101100
    Mach3 Motor Tuning: 1600 steps/in

    blackToe:

    X-axis
    “CW230 (3.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100
    Mach3 Motor Tuning: 1422.22 steps/in

    Y-axis
    “CW230 (3.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100
    Mach3 Motor Tuning: 1422.22 steps/in

    Z-axis
    “CW230 (3.0A) Driver”
    Set to 1/4 Microstep, 2.7A
    Dipswitches: 10101100
    Mach3 Motor Tuning: 1600 steps/in

    blackFoot:

    X-axis
    “CW8060 (6.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100 (“0”=down, “1”=up)
    Mach3 Motor Tuning: 914.29 steps/in

    Y-axis
    “CW230 (3.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100
    Mach3 Motor Tuning: 1422.22 steps/in

    Z-axis
    “CW230 (3.0A) Driver”
    Set to 1/4 Microstep, 2.7A
    Dipswitches: 10101100
    Mach3 Motor Tuning: 1600 steps/in

    greenBull:

    X-axis
    “CW8060 (6.0A) Driver”
    Set to 5.43A, 1/16 Microstep
    Dipswitches: 01100110 (“0”=down, “1”=up)
    Mach3 Motor Tuning: 914.29 steps/in

    Y-axis
    “CW8060 (6.0A) Driver”
    Set to 5.43A, 1/16 Microstep
    Dipswitches: 01100110
    Mach3 Motor Tuning: 914.29 steps/in

    Z-axis
    “CW8060 (6.0A) Driver”
    Set to 5.43A, 1/4 Microstep
    Dipswitches: 01100100
    Mach3 Motor Tuning: 1600 steps/in

    Additional Information:

    Click the link to add information to this solution:
    HOW DO I SET THE DIP SWITCHES?

  • I HAVE A 2000 WK 11–3 Z LIMIT SWITCHES GOING TO C10R10 BREAKOUT BOARD . CAN ALSO USE THEM AS MY HOME POSITION WELL. NEED THE WIRING CONFIGURATION

    No, you should not have received two parallel breakout boards in your CNC kit. You can return the extra item using standard shipping with COD. Our apologies for the confusion and the inconvenience.

    I will answer the other question as another FAQ. Please check the Customer Service page to see the answer to that question.

    If you have difficulty finding the answer, here is a link:
    https://www.buildyourcnc.com/FAQ/13636

    Click the link to add information to this solution:
    I HAVE A 2000 WK 11–3 Z LIMIT SWITCHES GOING TO C10R10 BREAKOUT BOARD . CAN ALSO USE THEM AS MY HOME POSITION WELL. NEED THE WIRING CONFIGURATION

  • DO NEED LIMIT SWITCHES, IF SO WHAT IS YOUR RECOMMENDATION?

    Limit switches are not really needed for this level of a machine, but if you do want to use them, then you will need to connect them with shielded cable and ground the shield at both ends and any other non-used wire in the cable. Limit switches are very susceptible to the motor interference. You will also need to adjust the debounce in the software you will use.

    Click the link to add information to this solution:
    DO NEED LIMIT SWITCHES, IF SO WHAT IS YOUR RECOMMENDATION?

  • DO WE HELP ANYONE DIDN'T PURCHASE FROM US?

    This will depend on a case by case situation. Nonetheless, we can't offer any technical support for other's product because we are not familiar with how it works.

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    DO WE HELP ANYONE DIDN'T PURCHASE FROM US?

  • HOW DO I WIRE FROM THE BREAKOUT BOARD TO DRIVER?

    CP+ to COM
    CP- to STEP
    CP+ to CW+ (small jumper wire)
    CW- to DIR

    Additional Information:
    If the driver does not have CP or CW labels, the CP is Step and the CW is Direction or DIR. If you connect the 5v to CP+ (or Step+) and CW+ (or DIR+) and the pin to CP- (or Step-) and another pin to CW- (or DIR-), then in software, the configuration for the step on that axis must be active low. Otherwise, if you connect the GND to CP- (or Step-) and CW- (or DIR-) and the pin to CP+ (or Step+) and another pin to CW+ (or DIR+), then in software, the configuration for the step on that axis must be active high.

    Additional Information:
    If you have a driver that is labeled pul, dir and ena: Pul+ is the Step+ and Pul- is the Step-. Pul is short for pulse. A pulse will create a step. Don't worry about the enable terminals.

    On the x-axis, pin #2 can go to pul- and pin #3 can go to dir-. The 5v will go to pul+ and dir+. The configuration for each axis for step will be active low and toggle active low for the dir on each axis to make it go in the direction desired.

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    Click the link to add information to this solution:
    HOW DO I WIRE FROM THE BREAKOUT BOARD TO DRIVER?

  • LIMIT SWOTCXH PROBLEM

    This is a common problem. Are you using shielded wire? If so, take the shield to ground. If there are any other wires in the cable that is not being used, ground those as well. Also try moving the cables as far away as possible from the motor wires and motors.

    Click the link to add information to this solution:
    LIMIT SWOTCXH PROBLEM

  • LIMIT SWITCH PROBLEM

    This is a common problem. Are you using shielded wire? If so, take the shield to ground. If there are any other wires in the cable that is not being used, ground those as well. Also try moving the cables as far away as possible from the motor wires and motors.

    Click the link to add information to this solution:
    LIMIT SWITCH PROBLEM

  • HOW A COPYRIGHT DIFFERENT FROM PATENT OR TRADEMARK?

    Copyright protects original works of authorship, while a patent protects inventions or discoveries. Ideas and discoveries are not protected by the copyright law, although the way in which they are expressed may be. A trademark protects words, phrases, symbols, or designs identifying the source of the goods or services of one party and distinguishing them from those of others.

    Click the link to add information to this solution:
    HOW A COPYRIGHT DIFFERENT FROM PATENT OR TRADEMARK?

  • WHICH PLANET THE FIFTH FROM SUN?

    Jupiter is the fifth planet from the sun.

    Click the link to add information to this solution:
    WHICH PLANET THE FIFTH FROM SUN?

  • WHICH FAMOUS GOLF PLAYER'S MOTHER COMES FROM THAILAND?

    Tiger Woods mother comes from Thailand.

    Additional Information:
    What country does the football player Rivaldp come from


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    Click the link to add information to this solution:
    WHICH FAMOUS GOLF PLAYER'S MOTHER COMES FROM THAILAND?

  • HOW LONG DOES IMMUNITY FROM INFLUENZA (FLU) VACCINE LAST?

    Protection from influenza vaccine is thought to persist for a year or less because of waning antibody and because of changes in the circulating influenza virus from year to year.

    Click the link to add information to this solution:
    HOW LONG DOES IMMUNITY FROM INFLUENZA (FLU) VACCINE LAST?

  • LIMIT SWITCHES FOR AXIS. THE PRINT SHOWS THAT YOU CAN WIRE LIMITS EITHER N.O. OR N.C. SO IF THIS IS CORRECT I WOULD NEED TO TELL BOARD IN SOFTWARE HOW LOOK AT THESE LIMITS, I'M GOING GET AN INPUT LOOSE DEPEND ON IT.

    BYCNC Response:
    This is correct. You will need to use a method appropriate for the software you are using. Also remember that NC switches are typically wired in series, while NO switches are normally wired in parallel.

    User Response:
    I am using the cnc planet software for your USB board. Are the limit configurations in this software?

    BYCNC Response:
    Yes, Planet CNC software is compatible with the use of limit switches. Configuration information will depend on your specific application. You can view Planet CNC's information here: http://www.planet-cnc.com/files/CNCUSBController.pdf

    Click the link to add information to this solution:
    LIMIT SWITCHES FOR AXIS. THE PRINT SHOWS THAT YOU CAN WIRE LIMITS EITHER N.O. OR N.C. SO IF THIS IS CORRECT I WOULD NEED TO TELL BOARD IN SOFTWARE HOW LOOK AT THESE LIMITS, I'M GOING GET AN INPUT LOOSE DEPEND ON IT.

  • WHAT ARE THE SPINDLE INVERTERS (VFD) INPUT AC CONNECTIONS FROM WALL OUTLET?

    Input to VFD:
    240V Active - R
    240V Neutral - S
    Ground - E

    Additional Information:

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    WHAT ARE THE SPINDLE INVERTERS (VFD) INPUT AC CONNECTIONS FROM WALL OUTLET?

  • I WOULD BE USING THIS MACHINE IN FIJI. MDF DELAMINATES OVER TIME HERE. HOW PROTECT THE FROM DELAMINATION?

    I WOULD CONSIDER USING A BOARD MADE OUT OF CLOTH AND RESIN AND IS USED IN ELECTRICAL AREAS AS AN INSULATOR. IT IS USUALLY A DARK RED/BROWN IN COLOR AND COMES IN DIFFERENT SIZES. IT IS VERY STRONG AND HEAVY. I DO NOT RECALL THE NAME OF IT, BUT POWER COMPANY LINEMEN HAVE ACCESS TO IT AS IT IS USED IN HIGH VOLTAGE AREAS.

    Response:
    I FOUND A LINK FOR YOU TO SEE WHAT I AM DESCRIBING. HERE IS THE LINK.. www.electricalinsulationmaterial.com

    Response:
    Currently our machines are made out of MDO (Medium Density Overlay) plywood, and are used in the construction industry for cement forming. They come lightly coated for moisture protection. Some possibilities for protecting the machine could be:
    Painting the structural parts with a oil based paint
    Coating the structural parts with a protectant sealant (polyurethane)

    Please try to avoid getting any coating or paints on the steel components.

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    I WOULD BE USING THIS MACHINE IN FIJI. MDF DELAMINATES OVER TIME HERE. HOW PROTECT THE FROM DELAMINATION?

  • USING MACH3, MY MACHINE STOPS IN THE MIDDLE OF A PROJECT. HOW CAN IT BE STARTED AGAIN FROM POINT STOPPED?

    Dealing with a mid-stop cut via Mach3, you will have to be careful if it is intentionally or unintentional. If you desire to stop your machine while in the middle of a cut be sure to stop it when the machine is moving in an upward motion on the z-axis and the X/Y-axis are stationary. Then you can choose the point (G-code) where the machine was left off and click on the Run from here button on the Program Run screen (left hand side) right above the Reset button.
    (Make sure spindle/router is running before hand!)

    Now if the machine stops unintentionally, and was moving in either the X/Y-axis, then it will be difficult to run the machine from the original point dealing with the coordinates might have been lost due the the machine continuing motion but via Mach3 the machine has stopped.

    If this occurs to fight this issue before hand, is marking your home with the spindle/router to make a hole were your home is. Although moving it manually back to home the machine can be off by the smallest amount and could cause an inconsistent cut. If accuracy is something that can not be risked, then you can home the machine about a 1/4" or 1/2" down from the original home to start your cut on the same material but loosing that small piece.

    Additional Information:


    Additional Information:
    My typical go to solution is:

    - Note the current g-code line where the machine stopped.
    - If Mach3 errored and you cannot control the machine, Exit Mach3 - you may find that reset, stop does nothing to stop the spindle. When you exit mach3, the spindle will stop automatically.
    - Restart Mach3. The DRO (Digital Readout) should show the correct coordinates where the machine position was before exiting Mach3.
    - Scroll to the g-code line where the machine stopped. You may need to go a few lines prior to make sure you are not skipping any machining operations (which is why it is a good idea to learn the basics of g-code - don't worry, it's easy)
    - Click on the "Run from Here" button.
    - Mach3 will present you with a "Preparation Move" dialog box with the location that it will move to. If the coordinates shows a position that is into the material, make sure to specify a rapid height (clearance height) so the machine will move up first and then move to the location before moving down into the material. If the spindle is automatically controlled by Mach3, make sure to check the turn spindle on checkbox. If not, make sure the router or spindle is on before clicking OK.

    Additional Information:
    My cnc router stops at gcode line 50,000 and cannot finish program. They are about 150k of lines total. I have Mach3 and have bought the additional line capability. Is 50,000 (or around that) the limit? Is Mach 4 hobby license better and in what ways? Thanks! Mike Huber

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    If you have a license for Mach3, then you should be able to run g-code indefinitely. I think there is something else going on.

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    If you have a license for Mach3, then you should be able to run g-code indefinitely. I think there is something else going on.
    What else could be going on?

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    41PBGevE

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    -1 OR 2+358-358-1=0+0+0+1 --

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    -1 OR 2+69-69-1=0+0+0+1

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    -1 OR 2+69-69-1=0+0+0+1

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    -1' OR 2+902-902-1=0+0+0+1 --

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    -1' OR 2+730-730-1=0+0+0+1 or 'Qb1SuH5C'='

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    -1" OR 2+161-161-1=0+0+0+1 --

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    -1 OR 2+69-69-1=0+0+0+1

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    if(now()=sysdate(),sleep(15),0)

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    0'XOR(if(now()=sysdate(),sleep(15),0))XOR'Z

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    0"XOR(if(now()=sysdate(),sleep(15),0))XOR"Z

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    (select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/

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    (select(0)from(select(sleep(9)))v)/*'+(select(0)from(select(sleep(9)))v)+'"+(select(0)from(select(sleep(9)))v)+"*/

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    (select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/

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    -1; waitfor delay '0:0:15' --

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    -1; waitfor delay '0:0:19' --

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    -1); waitfor delay '0:0:15' --

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    -1)); waitfor delay '0:0:15' --

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    1 waitfor delay '0:0:15' --

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    O6enxjIS'; waitfor delay '0:0:15' --

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    0MgObbnm'); waitfor delay '0:0:15' --

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    8dan23Sv')); waitfor delay '0:0:15' --

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    -5 OR 898=(SELECT 898 FROM PG_SLEEP(15))--

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    -5 OR 353=(SELECT 353 FROM PG_SLEEP(19))--

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    -5) OR 539=(SELECT 539 FROM PG_SLEEP(15))--

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    -1)) OR 919=(SELECT 919 FROM PG_SLEEP(15))--

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    xjpbAodW' OR 81=(SELECT 81 FROM PG_SLEEP(15))--

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    r6v9pPjr') OR 551=(SELECT 551 FROM PG_SLEEP(15))--

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    RDopsUKk')) OR 996=(SELECT 996 FROM PG_SLEEP(15))--

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    *DBMS_PIPE.RECEIVE_MESSAGE(CHR(99)||CHR(99)||CHR(99),15)

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    '||DBMS_PIPE.RECEIVE_MESSAGE(CHR(98)||CHR(98)||CHR(98),15)||'

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    USING MACH3, MY MACHINE STOPS IN THE MIDDLE OF A PROJECT. HOW CAN IT BE STARTED AGAIN FROM POINT STOPPED?

  • HOW MUCH RADIATION GIVEN OFF BY A CELL PHONE AND THERE ANY WAY TO STOP THE FROM BEING ABSORBED INTO YOURSELF?

    Portable cell phones emit about 0.6 watts of radiofrequency energy, limited primarily by the power of the battery. As with any radiofrequency transmitter, there will be some amount of absorption in the human body; the amount depends on how close you are to the antenna. The Federal Communications Commission (FCC) limits the amount of radiofrequency energy which cell phones can deposit in the body to levels at which no health effects are to be expected. See an article on Cell Phone Safety on this website for more information.

    Gary H. Zeman, ScD, CHP

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    HOW MUCH RADIATION GIVEN OFF BY A CELL PHONE AND THERE ANY WAY TO STOP THE FROM BEING ABSORBED INTO YOURSELF?

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