Epever ViewStar AU Series - User Manual

BEIJING EPSOLAR TECHNOLOGY CO., LTD. Tel：+86-10-82894112 / 82894962 Website：www.epsolarpv.com/www.epever.com
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ViewStar AU series solar charge controller
1. Overview
Thank you for selecting the ViewStar AU series common positive solar charge
controller. The VS-A 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
LCD
⑤
Battery Terminals
②
MENU Button
⑥
Load Terminals
③
RTS* Port
⑦
SET Button
④
PV Terminals
⑧
USB Output Ports※
※ USB output ports provide the power supply of 5VDC/2.4A and have the short
circuit protection.
NOTE: Unplug the RTS, the temperature of battery will be set to a fixed
value 25ºC.
3. Wiring
(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.
(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
Function
MENU button
 Browse interface
 Setting parameter
SET button
 Load ON/OFF
 Clear error
 Enter into Set Mode
 Save data
4.2 LCD Display
 Status Description
Item
Icon
Status
PV array
Day
Night
No charging
Charging
PV Voltage, Current ,Power
Battery
Battery capacity, In Charging
Battery voltage. current, temperature
Battery type
Load
Load ON
Load OFF
Load Voltage, Current, Load mode
 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
Icon
Description
Battery over
discharged
Battery level shows empty, battery frame blink,
fault icon blink
Battery over
voltage
Battery level shows full, battery frame blink, fault
icon blink
Figure 2 Connection diagram
Figure 1 Characteristic
②
①
③
④
⑤
⑥
⑦
⑧
Optional Accessory:
Name: Remote Temperature Sensor
Model: RTS300R47K3.81A
Acquisition of battery temperature for undertaking
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.
※ Thank you for selecting ViewStar AU series solar charge
controller. Please read this manual carefully before using the
product.
All manuals and user guides at all-guides.com
all-guides.com

Summary

Overview of ViewStar AU Series Solar Charge Controller

Button Function

Details the function of the MENU and SET buttons for operating the charge controller.

LCD Display

Describes the dynamic display of operating data and working conditions on the LCD.

Product Features and Accessories

Key Features

Lists features like high-quality components, safety certifications, intelligent PWM charging, USB ports, and electronic protection.

Optional Accessory

Introduces the Remote Temperature Sensor (RTS) for temperature compensation.

Wiring Guide

Connection Diagram and Instructions

Illustrates the connection diagram and provides instructions for system wiring and power-on.

Operation and Settings

Button Function

Details the function of the MENU and SET buttons for operating the charge controller.

LCD Display Interface

Describes the status descriptions for PV array, Battery, and Load interfaces.

Load Mode Setting

Explains the steps to set load modes, including timer functions and default load ON.

Battery Type Setting

Guides users on setting the battery type (Sealed, Gel, Flooded) for optimal charging.

Protections and Troubleshooting

Protection Status

Details protections like Overheating, Load Failure, Load Overload, and Load Short Circuit with their conditions.

Fault Identification

Describes fault indications such as Battery over discharged, Battery over voltage, and Battery Overheating.

Troubleshooting Common Faults

Provides solutions for common issues like PV disconnection, wire connection errors, and battery voltage problems.

Technical Specifications

Specifications Table

Lists detailed technical specifications for different VS-A series models, including voltage, current, and dimensions.

Disclaimer

Warranty Conditions

Outlines conditions under which the warranty does not apply, such as improper use or exceeding rated values.

Epever ViewStar AU Series Specifications

General

Model	ViewStar AU Series
Category	Controller
System Voltage	12V/24V auto
Max. PV Open Circuit Voltage	50V
Max PV Input Voltage	50V
Charge Algorithm	PWM
Enclosure	IP30
Display	LED
Max PV Input Power	260W
Battery Type	Sealed, Gel, Flooded
Protection Features	Overcharge, Over-discharge, Short-circuit, Reverse polarity
Operating Temperature	-35°C to +55°C
Communication	RS485
Weight	0.8kg
Rated Charging Current	20A/30A/40A/50A