Morningstar TriStar TS-MPPT-30, Инструкция по установке и эксплуатации

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Operation
4.2 Battery Charging Information
4-Stage Charging
The TriStar MPPT has a 4-stage battery charging algorithm for rapid, ef fi cient, and safe battery
charging. Figure 4-2 shows the sequence of the stages.
NIGHT NIGHT
BULK
CHARGE
ABSORPTION FLOAT
EQUALIZE
VOL
T
AGE
TIME
Figure 4-2. TriStar MPPT charging algorithm
Bulk Charge Stage
In Bulk charging stage, the battery is not at 100% state of charge and battery voltage has not
yet charged to the Absorption voltage setpoint. The controller will deliver 100% of available solar
power to recharge the battery.
Absorption Stage
When the battery has recharged to the Absorption voltage setpoint, constant-voltage regulation is
used to maintain battery voltage at the Absorption setpoint. This prevents heating and excessive
battery gassing. The battery is allowed to come to full state of charge at the Absorption voltage
setpoint. The green SOC LED will blink once per second during Absorption charging.
The battery must remain in the Absorption charging stage for a cumulative 120 - 150 minutes,
depending on battery type, before transition to the Float stage will occur. However, Absorption
time will be extended by 30 minutes if the battery discharges below 12.5 Volts (25 Volts @24 V,
50 Volts @48 V) the previous night.
The Absorption setpoint is temperature compensated if the RTS is connected.