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Author Topic: dro's no movint  (Read 20177 times)

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Re: dro's no movint
« Reply #30 on: February 07, 2010, 01:22:06 PM »
I tried emulating the estop. No change. Right now pins 2-9 are high at 3.3v. Pins 10-16 are high at 4.4v. I am checking at the pp on the pc. No cables are connected. This is the onboard pp.

Offline Hood

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Re: dro's no movint
« Reply #31 on: February 07, 2010, 01:48:05 PM »
Ok so if you change the active low setting of  pins 2-9 in Mach do they go to or near zero?
If you jog an axis one way then the next do the Dir pins go between 0v and 3.3v?
If so then its working fine and likely you could resolve your problem by using a breakout board that will increase the voltage so your drives see 0v and 5v.
Hood
Re: dro's no movint
« Reply #32 on: February 07, 2010, 01:53:19 PM »
There is no change no matter what I do. I disabled the onboard pp in the bios. I installed a pp board and made sure it was working amd its address was right. On this port pins 2-9 are low. Trying to move the axis makes no change.

Offline RICH

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Re: dro's no movint
« Reply #33 on: February 07, 2010, 03:05:59 PM »
Have a look at the PP card, some are 3 v and some are 5v, and some are a combination giving you the option of changing which voltage will be generated. The voltage can be be set using a jumper on the card.
RICH
Re: dro's no movint
« Reply #34 on: February 07, 2010, 03:42:38 PM »
This is a 5v card. I made a mistake. I forgot to move the cable to the new card. When I did pins 2-9 are at 4.74 v. They do not change no matt what I do.

Offline RICH

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Re: dro's no movint
« Reply #35 on: February 07, 2010, 05:09:22 PM »
bobby47,
Do you use Skype by any chance?
RICH
Re: dro's no movint
« Reply #36 on: February 07, 2010, 05:37:09 PM »
I downloaded a pp test software that allowed me to test pins 2-9. All pins would toggle from 0 -3.3v except pins 3 and 4. The would toggle but high was only 1.3 v. I removed that program through the control panel and moved outputs 3 and 4 to 8 and 9 . Now y and z dir pins will toggle. X dir still doesn't work and I get no movement.
Re: dro's no movint
« Reply #37 on: February 07, 2010, 05:38:10 PM »
No. There is nothing on this pc but Mach3.

Offline RICH

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Re: dro's no movint
« Reply #38 on: February 07, 2010, 06:15:16 PM »
bobbya47,
You have me confused, one time you have 0-3.3 v another almost 5 v.
You never mentioned what you drive requires. But lets backup some....

-Mach will send the info to the PP for the pulses required.
-You have shown that there is a high and low voltage for the pulse. But you have also shown that is a difference between the pins.
So how about just getting only one axis to work with the pins that put out the higher voltage rather than playing with them all and making it complex. Once you have the one axis working you can swap that cable to the other drives and see if they all work. Then you have the setup which you know needs to be in place to get the others to work. You can add all the other stuff, like homing etc later.

What make drives are you using? Other than Gecko post info on them.
RICH


« Last Edit: February 07, 2010, 06:18:13 PM by RICH »
Re: dro's no movint
« Reply #39 on: February 07, 2010, 06:30:55 PM »
The higher voltage was on the pp board I installed. The voltage off the onboard pp is around 3.3v. The strange thing is that things have been moving around a lot. It works and then it doesn't work. I have had the y axis move but now it doesn't. A little while ago I reran the driver test and it did not work right. During the test it took around 10 seconds to move 1 sec on the screen. I am at the point that I would purchase another motherboard, but I am afraid I would wind up in the same boat. It appears that the pp is working with the exception of pins 3 and 4 but I cannot get movement. I am using compumotor OEM750 drives. The strange thing is that at one time the machine ran on the first computer and I used it some. If I could get the pp to work consistently I could check all the drives one at a time but nothing is consistent.