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17 May 2017 14:47 #93301 by grijalvap
Replied by grijalvap on topic Plasma Questions
Hi
yesterday finally get my 7I87 working, I did a fresh install and it worked out of the box, it shows the 8 analog input and 3 digital in HAL

however, I noticed that after some time (2 or 3 hours), it stops, and the red LED is on, also some messages are shown in AXIS GUI.
does anybody have clue?

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17 May 2017 15:57 #93303 by PCW
Replied by PCW on topic Plasma Questions
Can you post the errors?

If you get a red light that usually means you have lost communications which
most likely is a power issue of some kind.

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17 May 2017 16:30 #93304 by grijalvap
Replied by grijalvap on topic Plasma Questions
I will post the errors as soon I get to my house.
I'm using the power from the SSport at 7i76, do you think I should use a stand-alone power supply for the 7I87 board?

Thanks...

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17 May 2017 17:48 #93306 by PCW
Replied by PCW on topic Plasma Questions
You can check the 5V at the 7I87 by measuring at the 7I87s TB1

The 7I87 draws a fair amount of 5V power so needs
CAT5E cables and both power wires used if the cable is
of any significant length

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17 May 2017 21:14 #93314 by grijalvap
Replied by grijalvap on topic Plasma Questions
hi
This is the error screen from 7I87 card when it stop to work,
Attachments:

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17 May 2017 22:44 #93321 by PCW
Replied by PCW on topic Plasma Questions
Yeah, that's not just the 7I87 but the 7I76 also so
looks like it lost 5V power to both the 7I87 and 7I76

If you are using FPGA 5V power for the 7I76+7I87
you may need to use a separate 5V supply

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18 May 2017 14:35 #93352 by grijalvap
Replied by grijalvap on topic Plasma Questions
Hi
I have connected the 7i87 card to a 5v 3.5 amps power supply (same where the 7i76 is connected)
then run for all the night, unfortunately, it fails again.

now I have increased the servo thread period.

Thanks to all for your help

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22 May 2017 16:26 #93485 by grijalvap
Replied by grijalvap on topic Plasma Questions
hi
I removed the 7i87 and kept only the 7i76, but after some time I get the same error (the one for the 7i76)
can this error have something to do with the memory (I have 1gb only)?

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22 May 2017 16:35 #93487 by PCW
Replied by PCW on topic Plasma Questions
No, this cannot really be memory related.

Here are things I would check:

1. Your 5V supply voltage (especially when it fails)
2. That the cards are jumpered correctly for external 5V power (5I25 W2 down, 7I76 W2 right)

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22 Aug 2017 00:29 #97844 by grijalvap
Replied by grijalvap on topic Plasma Questions
Thank you all for your feedback now it is working ok, and the 7i87 is working also.

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