18
NOTE: The above parameter values are calculated under standard test conditions
(STC (Standard Test Condition)：Irradiance 1000W/m2，Module Temperature
25℃，Air Mass1.5.)
(2) Max. PV Array Power
The MPPT controller has limit current /power function; namely, when the charging
current/power exceeds the rated charging current/power, the controller will
automatically limit the charging current/power to the rated charging current/power.
This function can effectively protect the charging modules of the controller, and
prevent damage to the controller due to excessive access to PV modules. The actual
running status of PV array is as follows:
Condition 1: Actual charging power of PV array ≤ Rated charging power of the
controller
Condition 2: Actual charging current of PV array ≤ Rated charging current of
controller
When the controller works under "Condition 1" or "Condition 2", it will charge the
battery as per the actual charging current; at this time, the controller can work at the
maximum power point of PV array.
WARNING: When the power of the PV array is lower than the rated charging
power, the maximum open-circuit voltage is higher than 100V (MSC
**10N)/150V (MSC **15N) at the lowest environmental temperature, the
controller may be damaged.
Condition 3: Actual charging power of PV array＞Rated charging power of the
controller
Condition 4: Actual charging current of PV array＞Rated charging current of
controller
When the controller works under "Condition 3" or "Condition 4" ，it will charge the
battery as the rated charging current or rated charging.
WARNING: When the power of the PV array is higher than the rated charging
power, and the maximum open-circuit voltage is higher than 100V(MSC
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