Question for Maine
Sail. I have a MC-512 that sources field current
via the sense connection.
Originally Posted by Maine Sail
*Your v-sense red wire must go to house bank + terminal
I sense at the batteries via 15ft of 6ga.
*Your regulator negative black wire must go to the house bank negative.
I connect to the house bank negative via 15ft of 2/0.
The 512 hunts at about a 2 hz. rate when it is limiting voltage. Hunting peaks at 15+ volts. The average voltage when measured with a Fluke min/max/avg mode is the voltage the 512 is trying to maintain.
Balmar says that's the way its supposed to work. I didn't like putting 15+ volts on my gels so I moved the sense back closer to the alternator. The voltage is now under control but I have to restart the regulator several times to get a decent charge since the regulator does not see the drop through 15ft of 2/0 cable from the regulator to the batteries.
I upped the sense wire from 10ga to 6ga thinking the voltage drop due to field current
in the sense wire was the hunting problem but that's not the case.
Sail, do you think moving my regulator negative to the battery
negative would solve the hunting? Or is the hunting just the nature of the 512 since newer Balmar regulators have a dedicated sense wire.