On Sat, 17 May 2014, Viesturs L?cis wrote:

> Date: Sat, 17 May 2014 15:08:13 +0300
> From: "[UTF-8] Viesturs L?cis" <viesturs.la...@gmail.com>
> Reply-To: "Enhanced Machine Controller (EMC)"
>     <emc-users@lists.sourceforge.net>
> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
> Subject: Re: [Emc-users] 5i24?
> 
> 2014-05-16 16:37 GMT+03:00 Peter C. Wallace <p...@mesanet.com>:
>>
>>
>> Did you power cycle the CPU after flashing the card?
>
>
> No, I didn't. Manual does not say that it should be done.
> Anyway, I tried today and it kind of seemed to be allright, it even moved
> both motors on one of the 7i39s. I just have no idea, what kind of shit
> happened, maybe just another moment of bad luck on this awful day, because
> one of 7i39 had a nice flame, the other one does not light any LEDs and
> 5i24 is not found by LinuxCNC anymore - tried restarting pc several times,
> put it in different pci slot, 5i24 is not recognized, although power LEDs
> on replaced 7i39s do turn on.

I does sound like motor power got shorted to logicc power somehow


> There were no lose wires to make any shortcircuits, I have no idea, what
> could have happened to 7i39, CR8, CR9 and CR12 flickered few times and then
> the orange C1 catched small flame. It seems to me that logic power was
> shorted to motor power and then it was baked, but I have no idea, where and
> how could something like that happen.
>
> Fortunately I bought two 5i24s and had two spare 7i39s, so I flashed 5i24
> with the firmware, turned PC off for a moment, turned it on and the board
> seemed to be just fine, but the problem is that pwmgens are not enabled on
> 7i39 that is attached to P2. I swapped 7i39 cards, I swapped cables, but
> the problem remains on P2 connector. HalShow shows that all 3pwmgen enable
> pins are turned on, so I have no idea, what is wrong. Any ideas?
>

Did you set the fault input polarity for all pwmgens?


> Viesturs
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Peter Wallace
Mesa Electronics

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