Greetings, all~ If there is no Magnum employee monitoring the Wrench List, could boB Gudgel forward this as appropriate?
My client has a "genset plus" system--no recharge other than his MagnaSine 4448AE driven by a generator. Batteries are a single string of Deka 8L-16's, a few months old. We're running the charger defaults: 48 amp maximum charge rate, 2 hour absorption, and flooded setpoints. (1) Magnum's integrated battery monitor hasn't done a 100% reset for some time. It counts up to 99%, no more, according to the report from my customer. I asked the customer to run the generator for longer than his normal pattern, in order to force the meter to reset (and also to increase battery SOC). The "AH I/O" counter ran up to about 78 amp hours above zero and the inverter/charger went into float for over an hour...but still we got no reset on the counters. Is this an equipment glitch? OR: should we fool the system into repeating the bulk charge to try again for the reset? (2) The client reports an "Internal Bridge" fault. This has happened multiple times because the customer has become adept at resetting the unit per page 36 of the manual. The manual says nothing about "internal bridge", but repeated shutdowns seem non-normal to me. I do notice something in the manual about the "FET Bridge" so maybe that's where the trouble is. The customer has been pounding their batteries by driving the inverter until it shuts down due to low battery voltage. Could that trigger the "Internal Bridge" fault? It certainly triggers my cringe reflex... If we can get the percentage meter back on track, that might help reduce the customer's "drive until it dies" behavior. Here's hoping... Thankx, Mick Abraham, Proprietor www.abrahamsolar.com Voice: 970-731-4675 _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
