2 wire generator start

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Old 09-09-17, 01:58 PM
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2 wire generator start

I have a Generac Guardian 11kw stand by generator with and Evolution control panel. Auto starting is via a transfer switch, but would like to modify it to start from my Outback inverter (as done previously with a Kohler generator) via a relay.
 
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Old 09-09-17, 02:09 PM
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Welcome to the forums.

I see several different Outback inverters.
A model number would be needed to look up the wiring specs.
 
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Old 09-09-17, 02:53 PM
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Hi Pete. Thanks for the reply. The Outback is not really in the equation since it is connected to a relay to open or close a line to the generator. My problem seems to be with the Generac in that in the Auto mode is looking for 240 vac from the grid and also closes an external transfer relay.
 
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Old 09-09-17, 03:05 PM
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Ok... so as you mentioned it uses two wire start from the transfer switch to the generator. It you aren't going to use the transfer switch to initiate a start..... how will the generator know when to start ?
 
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Old 09-09-17, 04:29 PM
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The Outback has a signal that I used in the past to energize a relay.
 
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Old 09-09-17, 05:18 PM
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Ok.... and....

So what do you need from us ?
It has a signal that energizes a relay.
You have the relay. Move the wires from the transfer switch to the relay.

I'm still not sure how the transfer process is occurring here.
 
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Old 09-10-17, 11:59 AM
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Turns out it's not that simple. Studying the generator it looks like in the Auto mode it uses utility power to keep the generator off. When the power is missing it actuates the relay (located in the transfer switch). I don't have 240vac so I cannot control its on/off mode.
I am told there is a 2 wire start kit (#7109), however, I cannot find it anywhere. Generac does not manufacture it and says it is probably via a third party.
 
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Old 09-11-17, 07:50 AM
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Go here for 2 wire start discussions. I don't believe that it is simple with the Evolution controller.

http://zillerstore.com/forums/index.php
 
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Old 09-13-17, 11:42 AM
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Being an engineer I have designed and auto start circuit for the generator. I will post it after I try it, I am told by the Generac dealer technician that is should work. Stay tuned.
 
 

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