Messages

1

General Mach Discussion / Re: Mach 3 outputs 15hz to vfd instead of 0

« on: July 13, 2019, 04:32:19 AM »

Thank you for your time to weite such a informative post. I will take a look into those.

2

General Mach Discussion / Re: Mach 3 outputs 15hz to vfd instead of 0

« on: July 12, 2019, 06:44:01 AM »

Yep thats probably the way to go since i really was thinking about the same idea some time ago. Will probably buy one for testing and from there i will see.

You just gave me an idea for my next project thanks!

3

General Mach Discussion / Re: Mach 3 outputs 15hz to vfd instead of 0

« on: July 12, 2019, 05:30:18 AM »

Hi,
while its not perfect it is about what I would expect.

PWM is quite hard to achieve if you must also have perfect 0% modulation simultaneously with perfect 100% and linearity.

If your demands are that stringent then you should consider a step/direction servo and matching servo drive as a spindle.

Craig

Hey Craig,
The thing that  only bothers me, i have made the enclosure myself this was my third attempt and this time i nailed everything.
Now the electronics are playing around.

But i can live with thar i guess

Can you tell me more about the recommendation of yours with the servo as a spindle? A could imagine that the servo would be perfect for milling metals aswell, since it can operate at low rpms.

You have more info on that?

4

General Mach Discussion / Re: Mach 3 outputs 15hz to vfd instead of 0

« on: July 11, 2019, 03:23:29 PM »

Hi,
the most likely explanation is that Mach3 or your BoB doesn't quite go all the way to 0V.
With a multimeter measure the 0-10V signal and confirm the range it actually achieves, especially the bottom end.

Note that is  not correct to stop the spindle in Mach  just by specifying zero speed (S0.00). You should use M5 because
this opens the ON/OFF relay. If you rely on S0.00 any noise or linearity fault could cause the spindle to turn unexpectedly
because the relay is still ON. This could have injurious consequences if you were doing a manual tool change.

Craig

Excuse me i was wrong. The BoB is actually sending 0.33V to the VFD and not the VFD to the BoB. It has a constant voltage on the Terminal Pin...

5

General Mach Discussion / Re: Mach 3 outputs 15hz to vfd instead of 0

« on: July 11, 2019, 03:04:55 PM »

If i press F5 in mach 3 the spindle turns off completely. Im not relying on the 0 rpm, i understand that it can go off on its own.
I tried now the Multimeter and the BoB is receiving 0,33v when its on 0 rpm in mach 3. Any clue?

6

General Mach Discussion / Mach 3 outputs 15hz to vfd instead of 0

« on: July 11, 2019, 02:43:50 PM »

Hello there,
i am using mach 3 which is talking to my VFD via the Controller card. Everything was ok until today. now when i set the RPM to 0 in mach 3 and when i press F5 to start the spindle the minimum Hz is 15. It doesnt go below that. I dont really know what the problem is. I tried the synch spindle feature but things got worse instead of better. I am driving it with 0-10 Volts signal. When i switch off the mach 3 control and use the potentiometer and the VFDs own start/stop button, then everything is ok. 0 corresponds to 0. It seems that it needs to be set up in mach 3 somehow?

7

General Mach Discussion / Re: SXCNC 6040 mach 3 setup (JP-3163B v.3.9) (Need help!!)

« on: June 02, 2018, 06:49:22 PM »

Hey, i was able to dort out the problem. Its funny, but the Parallel port Cable was defected.... I bought a new one hooked it up, and voila its working now. The only thing which is a little annoying is that there is white noise comming out of the stepper motors....

8

General Mach Discussion / Re: SXCNC 6040 mach 3 setup (JP-3163B v.3.9) (Need help!!)

« on: June 02, 2018, 08:25:36 AM »

I meant the "Config", "Ports and Pins", and tabs, "Output Signals".
The normal pins and ports are allready set like you have mentioned.
And the supplier is not big of a help. He allways try to tell me to use some pirated USBcnc software instead. I also asked about a partial refund but he is unwilling to either contact the factory about the problem or give me some actual refund...

9

General Mach Discussion / Re: SXCNC 6040 mach 3 setup (JP-3163B v.3.9) (Need help!!)

« on: June 02, 2018, 07:55:22 AM »

Thank you for your fast reply. I was allready trying with the parallel to parallel port cabel. And i found allready the correct pin layout for this card. But it wont move. When i turn on the machine, the stepper motors seems to block themself which is a good sign. If they do does that mean that they should move aswell?? Do the output signals have to be set correctly in mach 3 aswell?

10

General Mach Discussion / SXCNC 6040 mach 3 setup (JP-3163B v.3.9) (Need help!!)

« on: June 01, 2018, 06:34:53 PM »

Hi guys i need help !

i got my 6040 cnc yesterday, and it came without any manual for mach 3 setup included. I got one CD with the manual for USBcnc and a pirated copy of usbcnc aswell. Since i have a registered mach 3 version and i really like the programm i would like to continue using mach 3.
I just got a parallel port to usb cable without the parallel port to parallel port from controller to computer.
That was strange. And it also didnt come with a pirated mach 3 copy like they usually do.
Previously i had a 3020 and a3040 cnc that ran great on my computer.
Since i dont have any documentations for pins and ports setup, i really just left the previous options that actualy seem to be the same.
Like for example:
X Axis - Step /Dir - 2/3
Y Axis - Step/Dir - 4/5 .....
It will not move! Doesnt matter what i do it doesnt move. The E-stop can not connect to mach 3 and the z probe doesnt work aswell Does anyone haveany advice how to get this thing running?

BoB is the JP-3163B v.3.9. (Inside the black box is the NOWFOREVER VFD aswell) I have tried the motors with my other controller box of the 3040 and they work. Ill attach a video so you can see what i did.

https://youtu.be/xxVbfefDdnA


<a href="https://youtu.be/xxVbfefDdnA" target="_blank" rel="noopener noreferrer" class="bbc_link bbc_flash_disabled new_win">https://youtu.be/xxVbfefDdnA</a>
Please HELP!!