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※ Thank you for selecting ViewStar AU series solar charge
SOLAR CONTROLLER
controller. Please read this manual carefully before using the
product.
ViewStar AU series solar charge controller
1. Overview
Thank you for selecting the ViewStar AU series common positive solar charge
controller. The VS-AU controller is a PWM charge controller with built in LCD display that
adopts the most advanced digital technique. The multiple load control modes enable it can
be widely used on solar home system, traffic signal, solar street light, solar garden lamp,
etc. The features are listed below:
Adopt high quality components of ST,IR and Infineon, make sure product using lifespan
Terminals have UL and VDE certification, the product is more safer and more reliable
Controller can work continuously at full load within the environment temperature range
from -25 to 55 ℃
3-Stage intelligent PWM charging：Bulk, Boost/Equalize, Float
Support 3 charging options: Sealed, Gel, and Flooded
LCD display design, dynamically displaying device's operating data and working
condition
Double USB design, the power supply charge for electronic equipment
With humanized button settings, operation will be more comfortable and convenient
Multiple load control modes
Energy statistics function
Battery temperature compensation function
Extensive Electronic protection
2. Product Features
①
②
③ ④
Figure 1 Characteristic
LCD
①
MENU Button
②
RTS Port
③
PV Terminals
④
※ USB output ports provide the power supply of 5VDC/2.4A and have the short
circuit protection.
Optional Accessory:
Name: Remote Temperature Sensor
Model: RTS300R47K3.81A
Acquisition of battery temperature
temperature compensation of control parameters, the
standard length of the cable is 3m (length can be
customized). The RTS300R47K3.81A connects to the port
③ on the controller.
NOTE: Unplug the RTS, the temperature of battery will be set to a fixed
value 25ºC.
3. Wiring
Figure 2 Connection diagram
(1) Connect components to the charge controller in the sequence as shown above and pay
much attention to the "+" and "-". Please don't insert the fuse or turn on the breaker during
the installation. When disconnecting the system, the order will be reserved.
(2)After power on the controller, check the LCD on. Otherwise please refer to chapter
6.Always connect the battery first, in order to allow the controller to recognize the system
voltage.
⑤
⑥
Battery Terminals
⑤
Load Terminals
⑥
SET Button
⑦
USB Output Ports※
⑧
for
undertaking
1
(3)The battery fuse should be installed as close to battery as possible. The suggested
distance is within 150mm.
(4) The VS AU series is a positive ground controller. Any positive connection of solar, load
or battery can be earth grounded as required.
NOTE: Please connect the inverter or other load that it has the large start
current to the battery rather than to the controller, if the inverter or other
load is necessary.
4. Operation
4.1 Button Function
Button
MENU button
SET button
4.2 LCD Display
Status Description
Item
PV array
⑧
⑦
Battery
Load
Browse interface
NOTE：
1）
When no operation, the interface will be automatic cycle, but the follow two interfaces
not be display.
2） Accumulative power zero clearing: Under PV power interface, press SET button and
hold on 5s then the value blink, press SET button again to clear the value.
3） Setting temperature unit: Under battery temperature interface, press SET button and
hold on 5s to switch.
Fault Indication
Status
Battery over
discharged
Battery over
voltage
Function
Browse interface
Setting parameter
Load ON/OFF
Clear error
Enter into Set Mode
Save data
Icon
Status
Day
Night
No charging
Charging
PV Voltage, Current ,Power
Battery capacity, In Charging
Battery voltage. current, temperature
Battery type
Load ON
Load OFF
Load Voltage, Current, Load mode
Icon
Description
Battery level shows empty, battery frame blink,
fault icon blink
Battery level shows full, battery frame blink, fault
icon blink
2