MX60 Tone Generator [RE-wrenches]

[Roy Butler, Four Winds RE]

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Ray,

This is a very obscure little trick that the MX-60 can do and it can be 
turned off via the deep, down, super secret menu in the MX-60. I was 
told that what you hear is the MPPT in action....
Go to the Status menu
Hold the Exit button down
While holding this, hold button #3 down
Select on or off with button #2

At least that's how I remember having to do it.....when he was still 
with Outback, boB Gudgel was very put out with me when I said I couldn't 
stand listening to the music.....he said I was one of Those people! 
Gotta love boB!

Good luck!

Roy Butler
NABCEP Certified Solar PV Installer®
NYSERDA eligible PV & wind installer 
Four Winds Renewable Energy, LLC
8902 Route 46
Arkport, NY 14807
607-324-9747
www.four-winds-energy.com



Ray Walters wrote:

>
> Hi All;
>
> I just sold an MX-60 to a customer with a 48 volt battery bank and 48 
> volt array. I noticed almost immediately that it seemed to be making 
> music like an alarm tone or computer beeping at various frequencies; 
> all very audible. I thought it was some sort of start up notification 
> and let it go. The next 2 days, my customer called 5 times to complain 
> that it was making sounds almost constantly. The system is in a 
> hallway at the center of the house, but all the equipment is in a 
> cabinet with lockable doors. They could hear it through the whole house.
> We called Outback, who told us this was a harmonic resonance that 
> occurred sometimes in systems that were 48 volt in and out. They said 
> it was normal! They suggested changing the MPPT parameters so that it 
> would operate the array at a slightly different voltage, less 
> efficient but should quiet it down. I just talked to the customer 
> today, who told me this too did not work, and it is still making 
> ridiculously loud sounds.
> We had hyped this controller as being the "latest and greatest" the 
> industry had to offer, boy am I looking like a doo doo slinger now. 
> We've had other MX60s 48in/out with no problems. Anybody else see 
> (hear) this one, or have any solutions? We're going to redo the system 
> with a different controller(s) next week if we must.
>
> Ohh and we've already considered running the array at 72 volts, but 
> how do you do that when one array is 8 older BP 90s, the 2nd array is 
> 10 Shell 150s, and the third will be 8 Sharp 165s?
>
> Beep BooooBleepp blappp,
>
> Ray Walters
> SolarRay, Inc.
>
>
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