X and Y axis limit switch probleme

[waltfl]

Hi all
I did convert my K40 laser to DSP 2012 and driver 2M5042. I also replaced the limit switch with micro switches
now th X axis works gret until the Y axis goes to the limit switch in this moment the X and Y axis bounces and the X motor starts runing again and pushes the laser head somewhere
does somebody has a solution?
thanks and greetings
walt

[twehr]

Hi all
I did convert my K40 laser to DSP 2012 and driver 2M5042. I also replaced the limit switch with micro switches
now th X axis works gret until the Y axis goes to the limit switch in this moment the X and Y axis bounces and the X motor starts runing again and pushes the laser head somewhere
does somebody has a solution?
thanks and greetings
walt

I would almost guarantee it is a wiring issue. If the Y axis switch closing causes the X to act badly, you may have wired the X - as the common to both x and y switches or something like that. The GND needs to be common to both and the X- and Y- are separate.

Another possibility is that you simply did not get the wires on the right posts of the connector on the controller.

Recheck ALL of your wiring and test your limit switches (while disconnected) with a VOM to ensure they are wired as Normally Open and close on switch activation. Then check that the common is actually going to ground on both switches. Then check that the normally open posts of the switches are going to the X- and Y- (respectfully) on the controller.

[waltfl]

Hi
thanks for the respond but thtas what I did first checking all the wiring and connections.
this is all like it supposed to be, th only probleme what I caan see is thAT MARCOS 2012 dsp CONNECTION DIAGRAM
shows one version but my DSP came with a handwritten marking on what was reversed and I am not sure which one is right.
greetings
walt

Hi all
I did convert my K40 laser to DSP 2012 and driver 2M5042. I also replaced the limit switch with micro switches
now th X axis works gret until the Y axis goes to the limit switch in this moment the X and Y axis bounces and the X motor starts runing again and pushes the laser head somewhere
does somebody has a solution?
thanks and greetings
walt

I would almost guarantee it is a wiring issue. If the Y axis switch closing causes the X to act badly, you may have wired the X - as the common to both x and y switches or something like that. The GND needs to be common to both and the X- and Y- are separate.

Another possibility is that you simply did not get the wires on the right posts of the connector on the controller.

Recheck ALL of your wiring and test your limit switches (while disconnected) with a VOM to ensure they are wired as Normally Open and close on switch activation. Then check that the common is actually going to ground on both switches. Then check that the normally open posts of the switches are going to the X- and Y- (respectfully) on the controller.

[twehr]

Hi
thanks for the respond but thtas what I did first checking all the wiring and connections.
this is all like it supposed to be, th only probleme what I caan see is thAT MARCOS 2012 dsp CONNECTION DIAGRAM
shows one version but my DSP came with a handwritten marking on what was reversed and I am not sure which one is right.
greetings
walt

I don't have a 2012 and I don't know what diagrams you are looking at. BUT, if your Y axis limit switch is affecting your X axis operation, then clearly it is not wired correctly (regardless of the source of the information).

I looked at the diagram that Marco posted here. It indicates that the Y- is on pin 4 of connector 7. From what you are describing, it sounds to me that the diagram may be mis-labeled. If that is the case, I would GUESS that the Y- is REALLY at pin 3, and not 4. I would try that. If I am correct, then the Y switch will not affect the X axis and all should be good.

At this point, just try it and see what happens. If it turns out that I am right [ as is usually the case ] then I'll post a notice about it on over where the connection diagram is posted.

Please report back as soon as you can.

[waltfl]

Hi tim
OK I try all variation of connection nothing fixes the probleme. but I investigated this a bit more what is happen is that the Y motor runs a bit faster as the X what means the x limit switch is allready off and the motor stand, then the Y motor runs a bit fast and slames in to the Y limit switch in this moment the X switch loses and the x motor starts and moves the head away. I try to slow down the Y motor with the driver directly and have set it to the lowest setting in curent and speed ( 1A, 400 )but it does not change it. I also try with the display but ther I can not find the positon for the speed settings of the Y axis just for the X axis.
but I can not connect the computer now like described in the other post I dont know what it could be.
thanks for your help
walt

Hi
thanks for the respond but thtas what I did first checking all the wiring and connections.
this is all like it supposed to be, th only probleme what I caan see is thAT MARCOS 2012 dsp CONNECTION DIAGRAM
shows one version but my DSP came with a handwritten marking on what was reversed and I am not sure which one is right.
greetings
walt

I don't have a 2012 and I don't know what diagrams you are looking at. BUT, if your Y axis limit switch is affecting your X axis operation, then clearly it is not wired correctly (regardless of the source of the information).

I looked at the diagram that Marco posted here. It indicates that the Y- is on pin 4 of connector 7. From what you are describing, it sounds to me that the diagram may be mis-labeled. If that is the case, I would GUESS that the Y- is REALLY at pin 3, and not 4. I would try that. If I am correct, then the Y switch will not affect the X axis and all should be good.

At this point, just try it and see what happens. If it turns out that I am right [ as is usually the case ] then I'll post a notice about it on over where the connection diagram is posted.

Please report back as soon as you can.

[twehr]

What you describing indicates the X is working normally. It also indicates the Y limit switch is NOT working, at all.

Disconnect the Y motor and turn on the power. Then manually close the y limit switch. The y limit indicator led should light. (not sure where that led is on this model, but should be there someplace, even if you have to remove the cover to see it.)

Another possibility is that your laser carriage is not coming into contact with the y limit and you need to adjust where the limit and carriage come together.

You talked about the speed. Speed should not really be a factor. Once the limit is engaged, the travel should stop immediatly, so it can't really slam into anything. On a really big system there is inertia to worry about, but not on smaller machines.

So,

1. Verify that the board is actually seeing the y limit closure by doing it manually
2. Verify that the y limit is being fully closed by the carriage movement.

Btw, this is all going to seem rediculously simple once you find the problem. Until then, of course, you will be frustrated. That's just part of the fun

[Tech_Marco]

64 bit driver ready:
viewtopic.php?f=55&t=846

New software is available soon. Just forgot my FTP account to upload it


Marco

[waltfl]

Hi tim
I checked all of this, the Y switch closes complete and the DSP also sees the closing and opening of the switches ( LEDs on if closed). but if the Y switch is closed I can not move the carrier with the display arrows away.
yeah fun is good but it can be frustrating too.
greetings
walt

What you describing indicates the X is working normally. It also indicates the Y limit switch is NOT working, at all.

Disconnect the Y motor and turn on the power. Then manually close the y limit switch. The y limit indicator led should light. (not sure where that led is on this model, but should be there someplace, even if you have to remove the cover to see it.)

Another possibility is that your laser carriage is not coming into contact with the y limit and you need to adjust where the limit and carriage come together.

You talked about the speed. Speed should not really be a factor. Once the limit is engaged, the travel should stop immediatly, so it can't really slam into anything. On a really big system there is inertia to worry about, but not on smaller machines.

So,

1. Verify that the board is actually seeing the y limit closure by doing it manually
2. Verify that the y limit is being fully closed by the carriage movement.

Btw, this is all going to seem rediculously simple once you find the problem. Until then, of course, you will be frustrated. That's just part of the fun

[twehr]

Hi tim
I checked all of this, the Y switch closes complete and the DSP also sees the closing and opening of the switches ( LEDs on if closed). but if the Y switch is closed I can not move the carrier with the display arrows away.
yeah fun is good but it can be frustrating too.
greetings
walt

Have you tried both the up and down arrows? I know it sounds like a dumb question, but if you are wired backward and only tried movement with the logical arrow, you wouldn't know it. There is a combination of wiring and setup that allows the reset to move the correct way, and the control panel buttons to move the right way, but the on screen buttons to work backward.

What happens if you switch the motors (plug x into y controller and y into x controller)? You will have to hit the switches manually, but then see if you can use the up and down keys to move the now connected x motor and the left right to control the y direction.

You have to try some pretty odd combinations, sometimes, but each gives you additional information about what does and what does not work, leading you eventually to the problem area.

If all else fails, move tomIowa and I can probably get it going for you in a few hours.

[waltfl]

Hi tim,
yes I have try this too and if I switch drivers it is the same thing I can move the head with the up and down arrows on the display and the Y axis with the right and left arrows but it is still the same probleme then with the Y axis.
eventually it has to do with the DSP that the system never comes back from the system resetting until I hit the stop botton.
do you have another idea? it is terribel that we have no manual what maybe explains solutions for this.
greetings
walt

Hi tim
I checked all of this, the Y switch closes complete and the DSP also sees the closing and opening of the switches ( LEDs on if closed). but if the Y switch is closed I can not move the carrier with the display arrows away.
yeah fun is good but it can be frustrating too.
greetings
walt

Have you tried both the up and down arrows? I know it sounds like a dumb question, but if you are wired backward and only tried movement with the logical arrow, you wouldn't know it. There is a combination of wiring and setup that allows the reset to move the correct way, and the control panel buttons to move the right way, but the on screen buttons to work backward.

What happens if you switch the motors (plug x into y controller and y into x controller)? You will have to hit the switches manually, but then see if you can use the up and down keys to move the now connected x motor and the left right to control the y direction.

You have to try some pretty odd combinations, sometimes, but each gives you additional information about what does and what does not work, leading you eventually to the problem area.

If all else fails, move tomIowa and I can probably get it going for you in a few hours.