10A EPSOLAR Solar Charge Controller 12V 24V LCD Display Dual Timer 3-Stage Intelligent PWM Charging for Solar Home System
Overview
Thank you for selecting the ViewStar A 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:
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
Multiple load control modes
Energy statistics function
Battery temperature compensation function
Extensive Electronic protection
Product Features
* Accessory: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 (4th) on the controller.
Note: Unplug the RTS, the temperature of battery will be set to a fixed value 25ºC.
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-A 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.
Load mode setting
Operating Steps:
Under load mode setting interface, press SET button and hold on 5s till the number begin flashing, then press MENU button to set the parameter, press SET button to confirm.
| 1** | Timer 1 | 2** | Timer 2 |
| 100 | Light ON/OFF | 2 n | Disabled |
| 101 | Load will be on for 1 hour since sunset | 201 | Load will be on for 1 hour before sunrise |
| 102 | Load will be on for 2 hours since sunset | 202 | Load will be on for 2 hours before sunrise |
| 103-113 | Load will be on for 3-13 hours since sunset | 203-213 | Load will be on for 3-13 hours before sunrise |
| 114 | Load will be on for 14 hours since sunset | 214 | Load will be on for 14 hours before sunrise |
| 115 | Load will be on for 15 hours since sunset | 215 | Load will be on for 15 hours before sunrise |
| 116 | Test mode | 2 n | Disabled |
| 117 | Manual mode(Default load ON) | 2 n | Disabled |
NOTE: Please set Light ON/OFF, Test mode and Manual mode via Timer1. Timer2 will be disabled and display "2 n".
Technical Specifications
| Item | VS1024A | VS2024A | VS3024A |
| Nominal system voltage | 12/24VDC Auto | ||
| Battery input voltage range | 9-32V | ||
| Rated charge current | 10A | 20A | 30A |
| Max. PV open circuit voltage | 50V | ||
| Temperature compensation coefficient | -3mV/°C/2V(25°C) | ||
| Self-consumption | ≤8.1mA(12V);≤6.5mA(24V) | ||
| Charge circuit voltage drop | ≤0.29V | ||
| Discharge circuit voltage drop | ≤0.16V | ||
| LCD temperature range | -20°C-+55°C | ||
| Working environment temperature | -25°C-+45°C | ||
| Humidity range | ≤95% (N.C.) | ||
| Enclosure | IP30 | ||
| Grounding | Common Positive | ||
| Overall dimension | 132x84.6 x39.7mm | 149x94.1 x46.1mm | 177.5x106.6 x46.2mm |
| Mounting dimension | 120x56mm | 137x60mm | 165.5x70mm |
| Mounting hole size | Φ4.5mm | ||
| Terminals | 4mm2 | 16mm2 | 16mm2 |
| Net weight | 0.18kg | 0.26kg | 0.33kg |
| Link | Link | Link | Link |
Battery Voltage Parameters (parameters is in 12V system at 25°C, please use double value in 24V.)
| Battery charging setting | Sealed | Gel | Flooded |
| Over Voltage Disconnect Voltage | 16.0V | 16.0V | 16.0V |
| Charging Limit Voltage | 15.0V | 15.0V | 15.0V |
| Over Voltage Reconnect Voltage | 15.0V | 15.0V | 15.0V |
| Equalize Charging Voltage | 14.6V | —— | 14.8V |
| Boost Charging Voltage | 14.4V | 14.2V | 14.6V |
| Float Charging Voltage | 13.8V | 13.8V | 13.8V |
| Boost Reconnect Charging Voltage | 13.2V | 13.2V | 13.2V |
| Low Voltage Reconnect Voltage | 12.6V | 12.6V | 12.6V |
| Under Voltage Warning Reconnect Voltage | 12.2V | 12.2V | 12.2V |
| Under Volt. Warning Volt. | 12.0V | 12.0V | 12.0V |
| Low Volt. Disconnect Volt. | 11.1V | 11.1V | 11.1V |
| Discharging Limit Voltage | 10.6V | 10.6V | 10.6V |
| Equalize Duration | 120min | —— | 120min |
| Boost Duration | 120min | 120min | 120min |
