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A Forum run by Enthusiasts of MidNite Solar

Charge Controllers and Clippers => The "Classic" charge controller => Classic and Classic Lite BETA Firmware... => Topic started by: Joe on April 12, 2014, 11:51:06 AM

Title: classic 250 will not maintain pv volts after update
Post by: Joe on April 12, 2014, 11:51:06 AM
classic will start out at correct volts for a few minutes then drop to 59.0 volt. My Voc is 194.4
Title: Re: classic 250 will not maintain pv volts after update
Post by: Vic on April 12, 2014, 05:20:03 PM
Joe,

Until one of the experts arrives to reply,  you might try Legacy P&O in the Mode menu.  This might help.  It tracks more slowly,  and at times, helps.

I am assuming that this is on a 48 V battery,  and that the sweep pulls the PV in voltage to about 5 volts above the battery voltage.   Often,  if this is the case,  you will hear the Classic "singing" fairly softly ...  to let you know.

FWIW,   Vic

Title: Re: classic 250 will not maintain pv volts after update
Post by: boB on April 12, 2014, 08:01:28 PM

Yes, please let us know if Legacy P&O stops the voltage from coming down to 59 volts.

We'll check more options from there.
Title: Re: classic 250 will not maintain pv volts after update
Post by: Joe on April 13, 2014, 11:32:15 AM
Think you Bob and Vic,  I did a factory reset the controller now will pull down every so often and then come back up insted of remaining at the lower voltage.
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