3
Fault behaviour
Operating the solar charge controller is dangerous in the following situations:
The solar charge controller does not appear to function at all
The s olar charge contr oller or connected cables are visibly damaged
Emission of smoke or fluid penetration
When parts are loose
In these cases immediately remove the solar charge controller from the solar panels and battery.
Function
The solar system controlle
r
, MP-3739 carries the following features:
Monitors the state of charge of the battery
Controls the charging process
Controls the connection/disconnection of loads
Make sure Solar system works in proper manner
Programmable Bulk and Float charge voltage
Night-Light Function
Manual load switch with automatic re-start.
Two timer schedule programmable
MPPT technolog
y
, capturing more energy from sun
What is MPP tracking (MPPT) ?
MPPT stands for "Maximum Power Point Tracking". This describes a process by means of
which the sola
r module is always o perated at t he point o f maximum possible power. The point of
maximum po wer can vary depending on the operating mode, local conditions, and because it
chang es in the course of the da
y
.
Operating the controller
The display shows a variety of system data by symbols and digits. The buttons on the front panel control
all settings and display windows.
Display and operation elements
LCD for controller
information and
messages.
Pagedown button
Manual load switch, or
confirm ation button in program mode
(Enter button)
Pageup button
Button for switching display
windows or calling up
the settings (Menu
button)
USB Interfaces
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