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4. Protection
Controller is equipped with battery reverse connection protection, photovoltaic panels reverse
connection protection, controller over temperature protection, battery over temperature protection,
over current protection, and photovoltaic panels over voltage protection etc..
Ⅲ
. Installation instructions
1. Usage Instructions
A. The controller can automatically identify battery voltage with power. Please connect the battery
first and ensure a firm connection.
B. The device address (ID) of the factory default is 6. Please set the device address (ID) before
setting in the host computer.
C. MPPT controller is designed according to the battery VI curve. If the controller is connected to a
common constant voltage DC power supply, the controller may not work properly.
D. Controller will heat during operation. It is suggested that controller should be installed in the
ventilation environment.
E. According to the environmental temperature, controller will conduct battery charging voltage
compensation. Please install the battery and controller in the same environment.
F. Choose enough capacity cable for connection to avoid of excessive loss in the circuit which may
led to the controller wrong judgements. Generally advice to calculate the current carrying capacity
by 5 amperes per square millimeter.
G. It is very important for the battery to be filled (be filled once a month at least, otherwise the
battery will suffer permanent damage). And only when battery charging energy is more than load
energy, can the battery be filled. Please keep this in mind.
H. Please keep the controller away from corrosive liquid and gas which might damage the controller
and produce harmful gas.
I. When connecting to the system, the panels voltage could be larger than the safety voltage for
rings intermittently, load is shut
off
the buzze. When Press the
ESC button for 3 seconds, the
load will resume normal work.
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