classic 250 will not maintain pv volts after update

Started by Joe, April 12, 2014, 11:51:06 AM

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Joe

classic will start out at correct volts for a few minutes then drop to 59.0 volt. My Voc is 194.4

Vic

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

Off Grid - Sys 1: 2ea SW+ 5548, Surrette 4KS25 1280 AH, 5.25 KW PV, Classic 150,WB, Beta Barcelona, Beta KID
Sys 2: SW+ 5548s, 4KS25s, 5.88 KW PV, 2 ea. Classic 150, WB, HB CC-needs remote Monitoring/Control, site=remote.
 MN Bkrs/Bxs/Combiners. Thanks MN for Great Products/Svc/Support&This Forum!!

boB


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.
K7IQ 🌛  He/She/Me

Joe

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.