Sebastian,

No, wasn't motor direction, but I think I know what to look for.

Thanks,
Eric


On August 23, 2017 12:14:24 PM EDT, "Eric H. Johnson" <ejohn...@camalytics.com> 
wrote:
>Sebastian,
>
>Hmm, I see what I have to do to create it. If I tie a signal to that
>output and disable the estop, it does correctly enable the associated
>amplifier. However, if I do the same thing with machine on, then main
>power is dropping out.
>
>If I manually assert that output, I do not get the TRAM error, that
>only happens when it is tied to machine on.
>
>It might be as simple as reversing output_scale, as I have not
>determined the motor direction, only encoder direction.
>
>Thanks,
>Eric
>
>
>On August 23, 2017 11:43:58 AM EDT, Sebastian Kuzminsky
><s...@highlab.com> wrote:
>>On 08/23/2017 08:02 AM, Eric H. Johnson wrote:
>>> Andy,
>>> 
>>> I am using a 7i43 with 7i33 encoder daughter board and 7i37 IO
>>> daughter board. I am using a slightly modified version of the stock
>>> 7i43-big.ini configuration for check out purposes. I just add
>signals
>>> to individually test the IO before trying to run the real
>>> configuration.
>>> 
>>> For some reason, I was not able to get the amplifier enable to work
>>> off of the 7i33 board, even though it is wired identically (AFAIK)
>to
>>> the machine next to it. For the time being I am using an output off
>>> the 7i37, which is working.
>>> 
>>> At any rate, in hm2-servo.hal, under Z [2] Axis the enable reads:
>net
>>> emcmot.02.enable => hm2_[HOSTMOT2](BOARD).0.pwmgen.02.enable
>>> 
>>> I then added a line:
>>> 
>>> net emcmot.02.enable => hm2_7i43.0.gpio.046.out
>>> 
>>> If this line is commented out, I get no error. With it in, I get the
>>> TRAM error as soon as I try to do a machine on.
>>
>>This sounds like an electrical problem to me.
>>
>>As Andy said, the register in the hostmot2 firmware on the 7i43 FPGA 
>>gets written every time through the loop, whether it's a 0 or a 1.  So
>
>>the fact that writing works 42,444 times while it's a 0, then fails
>>when 
>>you set it to 1, makes me think it's something downstream of the FPGA.
>>
>>Do you know if you get an IO error (EPP timeout) at the same time?  If
>
>>this is happening it would show up in the log, it would set the 
>>"hm2_743.0.io_error" parameter to True, and it should E-stop the
>>machine.
>>
>>Here's a test to try: disconnect the wire connected to GPIO 046 and
>see
>>
>>if the problem still happens.
>>
>>
>>-- 
>>Sebastian Kuzminsky
>>
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