[RE-wrenches] Faulty PM-60 circuit board

[Ray Walters]

Rewiring the array for higher voltage gives the MPPT more range to play 
with, in addition to cutting the wire losses by half.
Sometimes with older modules close to the battery voltage, the 
controller will operate the array below max power point, and not really 
see any boost.

Ray

On 11/7/2011 6:44 PM, Joel Davidson wrote:
> Hello Ray,
>
> Thank you for the quick reply. You are right. It's time to move on 
> from the Pulse stuff. I will recommend this solution to my customer. I 
> did something similar to my Trace system when I replaced the C40 that 
> came with the Trace Modular Cabinet with an externally mounted Outback 
> MX60, but I did not rewire the array.
>
> Best regards,
> Joel Davidson
>
>
> ----- Original Message ----- From: "Ray Walters" <ray at solarray.com>
> To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
> Sent: Monday, November 07, 2011 10:16 AM
> Subject: Re: [RE-wrenches] Faulty PM-60 circuit board
>
>
>> Today's controllers are so much better both in terms of battery 
>> management, and power efficiency, that I replace the old Pulse stuff 
>> even if they're not dead. I usually keep the PC250 as a DC load 
>> center, and pop a new controller off the top. This is often a good 
>> time to add a few modules to the array, and rewire the existing array 
>> to higher voltage. This allows the existing home run wiring to be 
>> reused, even with the additional modules. I've found that if the 
>> original array wiring was good, that it takes very little work to 
>> jump up the voltage. Definitely don't need to redo every connection.
>> People are used to upgrading to better electronics: who still uses 
>> their computer, modem, or cell phone from 10 years ago?
>> Today's controllers will pay for themselves in extended battery life 
>> alone.
>>
>> Ray
>>
>> On 11/5/2011 6:50 PM, Joel Davidson wrote:
>>> Wrenches,
>>>
>>> My customer has a circa 2001 Pulse PC250 with a faulty PM-60 circuit 
>>> board TC-750,  REV D2 (the microprocessor U1 has v2.5 and v1.01 
>>> written on a label on it). Does anyone repair or have replacements 
>>> for PC250 PM-60 circuit boards? If not, what do you recommend? Thank 
>>> you in advance for your help.
>>>
>>> Joel Davidson
>>>
>>>
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