[RE-wrenches] Outback FNDC relay

[jay peltz]

Hi Bruce,

Volt/time start is pretty accurate.
I'm wondering if you have a battery problem that is causing the issue.

I'm guessing that the volt/time is starting before the % shows it  
should start?

jay
peltz power
On Oct 15, 2009, at 10:17 AM, Mendocino Solar Service wrote:

> Hi Kent,
>
> We're trying to work the bugs out of our first FNDC for a demanding  
> customer. It came as part of a DC Power assembled power center. They  
> had added a circuit of their own design that had an Auto-Off-Manual  
> toggle switch and a relay that was connected to both the FNDC and  
> the FX aux. It didn't work. Outback said to use either the FNDC  
> relay or the FX aux with an external relay, which is what we did,  
> and it's worked fine for several months, controlling the generator  
> by SOC. However, lately the SOC reading seems to have gotten out of  
> sync with reality, big surprise. The volt start settings are over- 
> riding the SOC. The challenge is how to camp out at the customer's  
> house for a week to make the observations and tweaks to get all the  
> programming set up appropriately to the realities of the battery and  
> array.
>
> I would suggest removing generator control from the FNDC relay and  
> let the Mate/AGS control an external relay. The FNDC seems to feed  
> it's data to Mate so it can work off of SOC.
>
> I agree with others that the FNDC screens are way too complicated  
> for all but a tech-head customer. At least the Trimetric is simple  
> enough you can get almost anyone to read amps and volts, and even,  
> God forbid, days since charged.
>
> Bruce Erickson
> Mendocino Solar Service
> PO Box 1252
> Mendocino, CA 95460
> 707-937-1701
>
>
>
> On Oct 15, 2009, at 9:35 AM, Kent Osterberg wrote:
>
>> Wrenches,
>>
>> I see there are lots of negative feelings about the FNDC and about  
>> how complicated the Mate is in general.  I haven't seen many direct
>> responses to the question.  Have any of you used the relay in the  
>> FNDC and had problems with it not turning the generator off?
>>
>>
>>
>> Kent Osterberg wrote:
>>>
>>> Has anyone besides me had problems using the relay in the Outback  
>>> FNDC?  I've had three different customers report that their  
>>> generators failed to turn off.
>>>
>>> -- 
>>> Kent Osterberg
>>> Blue Mountain Solar, Inc.
>>> www.bluemountainsolar.com
>>>
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