Redarc BMS1215S2, Руководство пользователя

Страница: 26 / 36

3 USER GUIDE
3.3 Navigating the Menu
The BMS monitors current in and out of the house battery, keeping track of the charge remaining. This screen
displays the estimated state of charge of the house battery in percentage along with a bar graph. For the
duration of the initial charge cycle for a new battery this screen will show ‘Analysing’. This is when the BMS
is gathering information about the battery under charge. Press the ‘Enter’ key to view the State of Charge
(SOC) graphs by hour or by day. State of Charge is determined by current in or out of the house battery, and
uses the fi rst charge cycle (Analysing) and the battery size input by the user at setup to determine what the
full State of Charge should be.
This screen will also display either the Time to Full Charge or the Battery Time Remaining, depending on
whether the house battery is currently being charged or discharged. The BMS uses the estimated State of
Charge value to calculate, based on the current into or out of the house battery, the time to reach 100% State
of Charge. You may use this to decide when to disconnect AC power, for example. Similarly, the BMS uses
the estimated State of Charge value to calculate, based on the current power usage of the system (e.g. of
loads such as fridges, lighting), the useful time remaining of the battery.
NOTE: Zero State of Charge occurs when the BMS determines that the amount of charge removed from the
house battery, in Ah, is equal to the amount input by the user at initial setup.
These screens display the State of Charge of the battery under charge per hour across the course of the last
day, or per day across the course of the last month. These screens will record the present State of Charge
for the hour and the maximum and minimum States of Charge for the day and display them at the bottom of
the screen as shown. Pressing the ‘Up’ key at this screen will take you to the State of Charge screen for the
next hour or day. Similarly, pressing the ‘Down’ key at this screen will take you to the State of Charge screen
for the previous hour or day. Both the SOC vs Hour and SOC vs Day graphs operate from left to right with
regards to time, with the most recent Hour or Day appearing at the right hand side of the screen. Pressing
the ‘Exit’ button from the SOC vs Day screen will take you back to the SOC vs Hour screen. Pressing the ‘Exit’
button from the SOC vs Hour screen will take you back to the Battery Charge screen.
Pressing ‘Down’ from the Battery Charge screen will take you to the Summary screen.
25