1-2
1.2 Operating Modes
There are three distinct and independent operating modes programmed into each SunStar.
Only one mode of operation can be selected for an individual SunStar. If a system requires a
charging controller and a load controller, two SunStars must be used.
Solar Battery Charging
The energy output of a solar array is used for recharging the system battery.
The SunStar manages the charging process to be efficient and to maximize the life of the
battery. Charging includes a bulk charging stage, PWM absorption, float and equalization.
DC Load Control
When set for DC load control, the SunStar powers loads from the battery, and protects the
battery from over-discharge with a current compensated LVD (low voltage load
disconnect).
DC Diversion Charge Control
In DC diversion mode, the SunStar will manage battery charging by diverting energy from
the battery to a dedicated diversion load. The energy source is typically wind or hydro.
1.3 Adjustability
Eight DIP switches permit the following parameters to be adjusted at the installation site:
DIP switch
Solar battery charging (Diversion charge control)
1 (OFF)
Battery charge control mode (Diversion charge control mode)
2 3 Select
Battery
Voltage
OFF OFF
48V
system
ON OFF
24V
system
OFF ON
12V
system
4~6 Standard
battery
charging
programs
7 (OFF)
Manual Equalization
(ON)
Auto Equalization
8 (OFF)
Operating from Dip Switch 4~6 battery charging programs settings
(ON)
VR1 and VR2 settings for user define battery charging programs
DIP switch
Load control
1 (ON)
Load control mode
2 3 Select
Battery
Voltage
OFF OFF
48V
system
ON OFF
24V
system
OFF ON
12V
system
