Lightobject.com Support Forum

Ive got pretty much everything ready to go with my DIY laser cutter and noticed that when everything is running (Controller, Motor Drivers/Motors, Power Supply, Air Assist Pump, etc..) one of the motors goes a little crazy. If I run the controller (AWC608) and motors (NEMA 23s) only, I can simulate a job fine but as soon as I add the laser and its components to the mix one of the motors doesnt respond correctly. Unfortunately this is one of the "parallel" motors with one of the left of the gantry and one of the right so it causes a misalignment of my lenses.

Bascially what happens is: If I start the job in the upper left of the table and move down (and to the right) the right side of the gantry ends up moving down much further as the left side moves correctly. Again, If I turn everything off except the controller/motor setup it runs fine.

Could this be electrically related? Right now I have everything plugged into one heavy duty power surge.

Thanks!

After some more testing this morning I have found some new information. I went out and got another power surge to plug only the Laser PSU into. This way I can still simulate the job and verify that everything works correctly without the PSU on. Now, when I turn on the PSU and start the job the stepper motor seems to be working correctly but the AWC608 hand held interface cuts out and restarts constantly (the motors keep working so I am thinking the entire AWC controller is still running but the interface cuts out).

Is it possible that the PSU is sending some kind of jolt through the PWM,TTL or G wires to the controller? All of these problems are occurring in the controller only when the PSU says "Fire". Right now I have PWM, TTL and G going back to the controller and the water switch and 5V going right to ground to bypass the interlocks so I can test it.

Im trying not to do too much testing simply because I do not want to damage any of the components but if anyone has any thoughts they would be greatly appreciated!

Thanks!

Why did you ground +5v?

Marco

Hey Marco,

Thanks for the reply. I was wondering if that was incorrect - I originally didnt have the water switch or 5v grounded and it wouldnt fire and found a forum on here where someone simply grounded all of the terminals to fire it (without being controlled by a controller) so I grounded that as well. I can "un-ground" the 5v but just out of curiousity what would the 5V be for then?

Ill give that a try tonight/tomorrow morning and let you know if there are other issues or not.

Thanks,
Heath

5V is for analog power control. You may dama the power supply if you ground the 5v
You need to gound the water protection nly
You need to follow the connection diagram I sent to you for proper setup

Marco

Thanks for the clarification Marco. I must have misunderstood the diagram that was sent over. Ill make sure to correct that right away!

Apparently I spoke too soon, I actually do not have the 5V plugged into anything. Just so I can double check, can you verify how my wiring should be though. I am trying for L on TTL so I have:
TTL to L
PWM to IN
G to G

Then I have:
WP to G
H to G

Is H supposed to be Grounded when using L or should I undo that?

Thanks,
Heath

You're disabling the PS as you're connecting"TH" to the ground. Only connect TL to the TTL. Leave TH opened
Aain, follow the connection diagram I sent you.

There is a minor mistake in the diagram: one of power for a stepping motor is missing.
It is easy ti understand that motor driver need power ti run

Hi Marco,

Thanks for the quick reply. I was able to go test a few jobs just now and it does appear to have solved the stepper issue. I must have misread the diagram - my apologies.

Thanks again!
Heath

Giod to hear that it works. Im panic here as I can't access Internet as easy as in the state so communication is my concerning. Providing tech support is very challenging and my schedule is very tightened

Leave message if you have further question. I will try to answer it asap if Internet is available

Marco
in China

Your support is greatly appreciated, especially in your travels. I'll let you know if anything comes up!

Thanks,
Heath