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Pc upgrade problem Help needed
« on: May 09, 2013, 07:17:02 AM »
Hi
I have my cnc plasma cutting machine working for last years ok, but the thc down signal, due to a bad cable.
My configuration is:
Powermax 1650 machine torch
Thc 300
Floating head
Geko 320 servo drivers
Xp operating system
Pci second parallel port
Port signals with NO opto isolators

Until now i had only small jobs occasionally, but now i got a bigger job so i decided to fix my parallel cable between thc300 and pci parallel card.
After this fix i run in a another problem with the pc, that was not butting occasionally, so i decided to upgrade my pc.
So my new motherboard is an intel atom d2700mud, solid state hd
Installed mach3 ver R3.043.066 from ver 2.63
Copied the thc300sm3 xml settings file and set all things as before

The problem is that i can not get the motors jogging, they arm ok but not jog
Ports and pins are ok i think, because i get correct e-stop response when i press the button (port 1), i get signal from thc swich when i press it (port 1), i get correct thc signals from thc300 unit up and down (port 2), a have torch on and off control (port 2)
When i jog axes from keypad a can see dro changing
And the voltages, read on the multimeter are as folows:
With only the pc on
for STEP DIR
X+ 3.3V 3.3V NO JOG 3V JOGING
X- 0.1V 3.3V NO JOG 3V JOGING
Y+ 0.1V 3.3V NO JOG 3V JOGING
Y- 3.3V 3.3V NO JOG 3V JOGING
Z+ 3.3V 3.3V NO JOG 3V JOGING
Z- 0.1V 3.3V NO JOG 3V JOGING

With all the systems on, all the voltages increase with 1.5v aprox on all motor output pins (read on the geko 320 step and dir inputs).

Also tried with no luck changing settings in bios for the parallel port from bi-directional to EPP
Attached is my xml and set files.

Thank you in advance

Cristian Gabor

Offline Hood

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Re: Pc upgrade problem Help needed
« Reply #1 on: May 09, 2013, 02:42:21 PM »
Could your problem be your port is 3.3v rather than 5v? Do you have abreakout board?
Hood
Re: Pc upgrade problem Help needed
« Reply #2 on: May 10, 2013, 12:22:16 AM »
Hi
Could your problem be your port is 3.3v rather than 5v? Do you have abreakout board?
Hood
No breakout board until now
I ordered one yesterday and should get it today, hope it solves my problem .

Offline Hood

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Re: Pc upgrade problem Help needed
« Reply #3 on: May 10, 2013, 03:03:37 AM »
Just make sure the Breakout you have chosen will buffer the 3.3v signal so that you get 5v out.
Hood
Re: Pc upgrade problem Help needed
« Reply #4 on: May 10, 2013, 11:56:14 AM »
Hi
Just make sure the Breakout you have chosen will buffer the 3.3v signal so that you get 5v out.
Hood

Just had a quick test on the breakout board and i get a 5v out on the pins.
Hope to finish installing it tonight.

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Re: Pc upgrade problem Help needed
« Reply #5 on: May 10, 2013, 01:43:00 PM »
Hopefully all will work out for you :)
Hood
Re: Pc upgrade problem Help needed
« Reply #6 on: May 11, 2013, 12:48:55 PM »
hi

It does not work
I installed the breakout board
I get 5v on dir input of the drive coming from it, but it still refuses to work
I set up the motor outputs on the pci parallel port, and connected the breakout board to, with the same results.
Think the problem may be on the geko drives, but i did not made any changes to this setup
Anyhow the motors engage, when by mistake i engaged the motors with no encoder connected on one motor, that motor went full speed one way

The setup on geko 320 is like this
1. Power ground
2. power 48v
3. Motor (--)
4. motor (+)
5. goes to +12v by momentary switch for 3 seconds to arm the motors and it does arm
5. goes to ground by momentary switch to disarm the motors and it does disarm
6. encoder (--)    (out from geko to encoder)
7. encoder (+) 5v (out from geko to encoder)
8. encoder A
9. encoder B
10. dir
11. step
12. (+) 12v

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Re: Pc upgrade problem Help needed
« Reply #7 on: May 11, 2013, 02:00:24 PM »
If you attach your xml I will look to see if there is a problem in it.
Hood
Re: Pc upgrade problem Help needed
« Reply #8 on: May 11, 2013, 03:22:55 PM »
There are the xml files for the intel atom computer and for the old computer.

On the old computer settings, i only changed the corresponding port pins for motor outputs.

I was hoping that it will work with the old pc, but no luck until now, the results are the same.

Can it be from the fact that i have 12v on gecko instead of 5v, (i do not mean motor voltage)

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Re: Pc upgrade problem Help needed
« Reply #9 on: May 11, 2013, 04:28:40 PM »
I am not familiar with the Gecko servo drives but just looked at the manual and it seems to be 5v you should have on pin 5, why are you putting in 12v?
Same for pin 12, manual says to connect to 5v.
Hood