User manual

16
C-3 OPERATION MODES
C
CC
C-
--
-3
33
3-
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-1 PIP
1 PIP1 PIP
1 PIP-
--
-LC System Block Diagram
LC System Block Diagram LC System Block Diagram
LC System Block Diagram
C
CC
C-
--
-3
33
3-
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-2
2 2
2 AC Priority
AC Priority AC Priority
AC Priority / AC
/ AC / AC
/ AC Mode
ModeMode
Mode
System default is AC priority mode. There are two main loops when AC utility is normal: the AC loop
and the battery charging loop. The AC output power comes from AC utility input and passes through
static switch to support power to load. The battery charging voltage comes from AC utility input and
converted by AC/DC charger to support battery-charging power. If solar power is sufficient, the solar
charger (optional) will also provide charging power to battery.
C
CC
C-
--
-3
33
3-
--
-3 DC Priority Mode
3 DC Priority Mode3 DC Priority Mode
3 DC Priority Mode / Inverter Mode
/ Inverter Mode/ Inverter Mode
/ Inverter Mode
A new feature of the system provides the option for users to change in the LCD from “AC priority / AC
Mode” to “DC Priority / Inverter mode”. In this mode, DC power will be priority and system will draw
power from battery whenever possible. When battery is low, system will automatically switch to AC for
quick boost charging to 14.5V and left on float at 14V for 2 hours before it switches back to DC mode
again. If AC power is unavailable the system will enter Battery mode. Solar charging will remain in
operation whenever possible (minimum working voltage 11.7V±0.5V@12V).