[RE-wrenches] FX inverter shutting itself off

[Jason Lerner]

Hi John,

What is the error code on the Mate when you show up,  or is there  
none?  As far as turning on the inverter remotely, I think you would  
need internet on site from a DC source to let any data monitoring  
software remotely control when the inverter is off.  Is there a back  
up generator?  What does the data monitoring show for battery Voltage  
around that time period?

Best,

Jason Lerner
Waldron Power and Light Co.

On Feb 6, 2011, at 8:21 PM, john wrote:

> Wrenches,
>     I have a mountaintop transmitter site with an FX3524, Flex Max  
> 60, some PV and 12 L16 Bateries.  They are set up in a small  
> building used for the ski patrol at a ski area.   There is a 25'  
> freestanding lattice tower on the roof with high speed wireless  
> internet transmitter and receiver antennas.  It is a relay site and  
> direct signals to customers.  We have a problem with the inverter  
> shutting off ("off" indicating on the mate )  somewhat randomly as  
> far as # of days apart but strangely all the shutoffs have happened  
> between 10:08 PM and 10:30 PM.  We thought it might be an inverter  
> or mate problem so we replaced both with new units.  The problem  
> continued with the new equipment.  We then suspected the data  
> logging connection may be sending a stray signal so we removed the  
> data connection from the FX (removed the connection from the mate).   
> I then also removed the connection from the FM 60 to the HUB,  
> connected another MATE directly to the FM 60 and connected this new  
> mate to our data aquisition so that we could still monitor battery  
> voltage.  The only common connection now is the batteries and also  
> our data system is being powered from the AC out on the inverter.   
> Now. after almost 3 days of operation, the inverter has shut off  
> again at 10:15 PM yesterday.  We know this as the data stopped  
> coming in due to the loss of AC power at the site.  My take is that  
> the data monitoring equipment has nothing to do with the problem...  
> also reinforced from several similar setups working flawlessly.  The  
> only thought I have is that the nearby cell tower is sending out  
> some interference.  Does anyone have a clue as to what this problem  
> could be.  My customer is really MAD.  All their brand new high  
> speed internet customers are having regular long outages.  We have  
> to trailer a snowmobile to the mountain almost an hour away and go  
> to the top to push the ON button.  Also, any comments on other data  
> systems which could turn the inverter on remotely.
>
> John Blittersdorf
> Central Vermont Solar & Wind.
>
>
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