Tristar 45 PWM Custom Profile
First..... I have a few images in this to help illustrate. Views best if you are allowing images! I tried to repeat in text what the image was saying, but a picture, as we know, is worth more. ...
Forum Discussion
time2roll wrote:OK I misunderstood this function.
Low battery trip I believe is to restart bulk charge if battery voltage drops for some time during the day due to high loads. If you run the Microwave off inverter for 2 minutes this might trigger bulk stage. I would set the voltage a bit lower like 12.2 on this setting and give about 15 minutes for time.
Low Battery Trip Voltage and Float Cancel are similar functions.
These settings control how long to remain in Absorption.
TRANSITION TO FLOAT is to keep the absorption short when the battery is basically fully charged in storage. Will also delay float if the battery is in light usage. The 30% PWM is basically when your amps have tapered to 30% of panel capacity.
LOW BATTERY TRIP VOLTAGE and the timer is to specify a normal absorption time when the day starts at some value less than full charge. If set at 12.4 then if you start at under 12.4 the timer specifies the absorption timer. So you might give 2 hours as the time to hold absorption.
This function seems optional as the transition to float function will extend absorption until the 30% threshold is met.
FLOAT CANCEL is just that. During hard use and you start below this voltage the controller will hold absorption voltage all day. I would set this fairly low as you did around 11.9 volts.
Sorry for any confusion. My MPPT menus are slightly different.
Click the HELP button on each screen for a brief description of the function on each screen.
