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Home > News & Events >News What's Means of the LED Light in MPPT Controller?

LED'S
Green LED: will be on or blinking when battery has been connected 
On: one of the two conventional algorithms
Blinking: Battery-Life algorithms 
 
Yellow LED: signals charge sequence
Off: no power from PV array (or PV array connected with reverse polarity)
Blinking fast: bulk charge (battery in partially charged state)
Blinking slow: absorption charged (battery charge to 80% or more)
On: float charge (battery fully charged)
 
Cable connection sequence (see figure 3)
First: connect the cables to the load, but ensure that all loads are switched off.
Second: connect the battery (this will allow the controller to recognize system voltage).
Third: connect the solar array (when connect with reverse polarity, the controller will heat up but will not charge the battery).
The system is now ready for use.
 
40A Solar charge controller with blue backlight ST5 series
Hanfong is the charge controller suppliers also provide PWM solar charge controller and many kind of power inverter, solar panel, battery. support the full solar system for civil use.