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t3: At this time period, TN-1500 is still in the Bypass mode. The battery voltage
t4: If the energy provided by the charger is larger than what is consumed by the
t5: Since the chargers are in the OFF mode, the battery voltage will gradually
t6: Once utility recovers, the CPU will switch back to the bypass mode.
t7: When battery voltage drops to below 26.5V, the battery charger will be
t8: Same as t4.
t9: Due to lack of utility, TN-1500 will switch to the inverter mode. AC charging
t10: As the battery discharges to below 26.5V and utility remains unavailable.
t11: Same as Energy Saving mode.
t12: When solar charger is providing current of larger than 3A, the voltage level of
level will decrease gradually due to standby power dissipation. When the
batteries are consumed to around 75% of their capacity (battery voltage
around 26.5V) the CPU will restart the charger. The CPU will use charging
current of 3A as a guide point. When the provided charging current is under
3A, the AC charger will be turned ON (e.g. Night time or cloudy day). As for
load, voltage of battery bank will increase gradually until 28.5V is reached
then the CPU will be shut off the charger to prevent overcharging. At this
decrease to the range of 26.5~28.5V (floating voltage level). If utility were to
fail at this moment, the CPU will automatically switch (<10ms) to the inverter
mode insuring uninterrupted power.
activated to charge the battery bank (refer to t3 for detailed description).
function will be turned off. Since AC output relies purely on battery power, the
Only the solar charger is turned ON. The battery bank could be depleted
rather quickly.
the battery bank will rise slowly. Once the battery voltage reaches inverter
mode reactivation level, the inverter will be revived.
battery bank will be depleted rather quickly.
charging current of over 3A, the solar charger will be turned ON instead.
point, output load is still supplied by utility.
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