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Old 04-14-2012, 09:48 AM   #21
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Quote:
Originally Posted by BBQ

What the hell is an open short?

That is like an open closed
Its like answering yes/no to something. Covers all bases
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Old 04-14-2012, 10:58 AM   #22
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Quote:
Originally Posted by MDShunk

Okay, I have one for you.

The breaker tripped.

What was the problem?

Go.......
Bad breaker
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Old 04-14-2012, 12:09 PM   #23
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Originally Posted by MWayne View Post
My guess is the starter is too small or was set incorrectly.
I don't believe that there should be a starter anywhere in the circuit. VFD's don't like the input or the output circuit broken by a contactor.
Isn't there a whole list of parameters the have to be programmed in regarding, stop-start, full load current etc.
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Old 04-14-2012, 01:29 PM   #24
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Originally Posted by retiredsparktech View Post
I don't believe that there should be a starter anywhere in the circuit. VFD's don't like the input or the output circuit broken by a contactor.
Isn't there a whole list of parameters the have to be programmed in regarding, stop-start, full load current etc.
It's a manual motor starter. It doesn't automatically switch.
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Old 04-14-2012, 02:45 PM   #25
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Yes, but even so, why is there an OL on the line-side of the VFD? I think his point is that the VFD itself should be performing these functions.

-John
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Old 04-14-2012, 02:58 PM   #26
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Quote:
Originally Posted by retiredsparktech
I don't believe that there should be a starter anywhere in the circuit. VFD's don't like the input or the output circuit broken by a contactor.
Isn't there a whole list of parameters the have to be programmed in regarding, stop-start, full load current etc.
I understand what you're saying and agree, but the OP said there was a starter.
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Old 04-14-2012, 03:14 PM   #27
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Yes, but even so, why is there an OL on the line-side of the VFD? I think his point is that the VFD itself should be performing these functions.

-John
Totally agreed; if it were me making the control panel all I would do is have a line side disconnect and then the drive and that's it. But I didn't make it. Vern did
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Old 04-14-2012, 03:57 PM   #28
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Quote:
Originally Posted by MDShunk View Post
Okay, I have one for you.

The breaker tripped.

What was the problem?

Go.......
Laces untied.
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