SA-15K Install Guide and Owner Manual

August 19
th
, 2022 34
Battery Setup
Batt
Batt Capacity: Enter the battery bank's size connected to the system.
Series = add Voltage | Parallel = add Amp-Hours
Max A Charge: set the max charge rate for the batteries (This also
sets the PV → Battery charge rate)
Suggest 20%-30% of battery capacity for lead-acid
Max A discharge: set max discharge for battery bank (In off-grid
mode, the battery bank will discharge 120% of this value for 10 seconds before the inverter shuts down to prevent
battery damage)
TEMPCO: Temperature coefficient used in conjunction with the batt temp sensor to adjust optimal voltages for lead-
acid batteries
Use Batt V Charged: displays battery charge in terms of voltage
Use Batt % Charged: Battery voltage can be misleading for determining the % Charged. So, we use algorithms
measuring power in and out to measure a true value for % Charged. It compensates for aging batteries also.
Charge
Float V: Set value appropriate for the batteries connected to the system
Absorption V: Set value suitable for the batteries connected to the system
• Absorption will stop at 2% of the capacity of the battery bank and drop to float. Ex: 400Ah battery would be 8A
Equalization V: Set value appropriate for the batteries in use.
Days: the period between equalization cycles
Hours: period taken to equalize batteries
Note if Hours = 0 system will not equalize the batteries
Gen Charge: uses the gen input of the system to charge the
battery bank from an attached generator.
Start V: voltage at which system will AutoStart a connected
generator to charge the battery bank
Start percentage: Percent S.O.C at which system will AutoStart a corresponding generator to charge the battery bank
A: Charge rate from the attached Generator in Amps (DC), size this value according to the generator size
Grid Charge: uses Grid input to charge batteries from the grid or generator
Gen Exercise Cycle (Day & Time): Set a weekly Gen exercise schedule. (Day of the week/Time/Duration Length)
Gen must have two-wire start connected to Sol-Ark. To disable the exercise, set the duration length to 0 min.
Gen Force: Test function for Gen AutoStart. Enable to trigger two-wire start (pins 15/16) and turn on the generator,
Disable to disengage two-wire start and turn off the generator. Generator will not provide power during this test if grid
power is available.