Have I killed my 7i84?

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19 Jan 2021 13:53 - 19 Jan 2021 13:54 #195892 by RotarySMP
Replied by RotarySMP on topic Have I killed my 7i84?

Here is also a 7i97 I am setting up for my lathe where I can give it a try.

Duh, I am such a dumbass. I have a 7i96 on the mini lathe I can test it on. Thanks.
Mark
Last edit: 19 Jan 2021 13:54 by RotarySMP.

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20 Jan 2021 19:41 - 20 Jan 2021 19:49 #196013 by RotarySMP
Replied by RotarySMP on topic Have I killed my 7i84?
I just tested the 7i84 on the 7i96, and it works fine. So now that I have all the I/O connectors pulled, and a new CAT 5 cable made up, I will try it again on the 7i77, with no I/O connected, and a separate field PSU.
[5 minutes later]
Okay, with a new CAT 5 cable, and a different Field PSU powering the 7i84, the 7i77 and 7i84 work fine together, which is really good news, so it looks like I failed to kill them (so far). Now I need to trouble shoot what caused them to stop playing nicely together in the wiring config which worked for the last 18 months.
I can feel in my bones where this is going. There is going to be something really dumb, like me conecting Field to an earth pin or something.
Mark
Last edit: 20 Jan 2021 19:49 by RotarySMP.

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24 Jan 2021 11:53 #196401 by RotarySMP
Replied by RotarySMP on topic Have I killed my 7i84?
After being more systematic with the trouble shooting, it looks like the 7i77 is damaged, but only the driver IC (or whatever is in there) of TB8-15. Once I moved the switch from that pin to another, I am back in business.
Thanks for your help.
Mark
The following user(s) said Thank You: tommylight

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