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Epsolar ViewStar Series Operation Manual

Solar charge controller
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EPSOLAR
ViewStar series
Solar Charge Controller
OPERATION
MANUAL
Thank you very much for selecting our product!
This manual offers important information and suggestions with respect
to installation, use and troubleshooting, etc. Please read this manual
carefully before using the product and pay attention to the safety
recommendations in it.

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Summary of Contents for Epsolar ViewStar Series

  • Page 1 EPSOLAR ViewStar series Solar Charge Controller OPERATION MANUAL Thank you very much for selecting our product! This manual offers important information and suggestions with respect to installation, use and troubleshooting, etc. Please read this manual carefully before using the product and pay attention to the safety...
  • Page 3 ViewStar Solar Charge Controller Nominal system voltage 36V 48V Nominal charge / discharge current Final interpretation right of the manual belongs to EPsolar. Any changes without prior notice!
  • Page 4 Contents 1 Important Safety Information ..................1 2 General Information..................... 2 2.1 Product Overview ................... 2 2.2 Product Features ....................4 2.3 Optional Accessories ..................6 3 Installation Instructions ....................7 3.1 Mounting ......................7 3.2 Wiring......................9 4 Operation........................12 4.1 PWM Technology ..................
  • Page 5 1 Important Safety Information Save These Instructions This manual contains important safety, installation and operating instructions. The following symbols are used throughout this manual to indicate potentially dangerous conditions or mark important safety instruction. WARNING: Indicates a potentially dangerous condition. Use extreme caution when performing this task.
  • Page 6 2 General Information Thank you for selecting ViewStar series solar charge controller. The controller adopts advanced digital control technology, LCD display and automatical operation. With the features of Pulse Width Modulation (PWM) battery charging and unique control technology, the controller will improve the long battery life efficiently. Our controller has many unique features and easy to use.
  • Page 7 Actual Power Display and record function make convenience to check the datum every day, every month and every year RS-485 ports via the open standard Modbus protocol are supported for long-distance communication and communication compatibility Standard RJ45 interface is used to connect to remote display unit (MT50) or PC software to monitor the actual data or modify parameters New SOC method could calculate the battery capacity accurately Electronic protection: Overheating, over discharging, overload, and short circuit...
  • Page 8 2.2 Product Feature 10 9 8 VS1024BN / VS2024BN VS2048BN / VS30**BN / VS45**BN / VS60**BN...
  • Page 9 1 Local temperature sensor It is used to acquire ambient temperature to do temperature compensation for charging and discharging. Fault LED indicator An LED indicator that shows system faults 3 Charging LED indicator An LED indicator that shows charging status 4 Liquid crystal display (LCD) Monitoring interface for solar system parameters and running status 5 Buttons...
  • Page 10 4. USB To RS-485 converter (Model:CC-USB-RS485-150U) USB To RS-485 converter is used to monitor each controller on the network using EPsolar Station PC software and update the firmware. The length of cable is 1.5m. The CC-USB-RS485-150U connects to the Communication port (6th) on the controller.
  • Page 11 3 Installation Instructions 3.1 Mounting Read through the entire installation section first before beginning installation. Be very careful when working with batteries. Wear eye protection. Have fresh water available to wash and clean any contact with battery acid. Uses insulated tools and avoid placing metal objects near the batteries. Explosive battery gasses may be present during charging.
  • Page 12 Step 1: Choose Mounting Location Locate the controller on a vertical surface protected from direct sun, high temperature, and water. And make sure good ventilation. Step 2: Check for clearance Place the controller in the location where it will be mounted. Verify sufficient room to run wires and sufficient room above and below the controller for air flow.
  • Page 13 3.2 Wiring NOTE: A recommended connection order has been provided for maximum safety during installation. NOTE: the controller is common negative one. rge power exceeding the ratings. CAUTION: Secure all wiring for mobile applications. Use cable clamps to prevent cables from swaying. Unsecured cables create loose and resistive connections which may lead to excessive heating and/or fire.
  • Page 14 on automatically. Controller load terminals can be connected to DC electric equipments whose nominal operation voltage is the same as nominal voltage of battery. The controller supplies power to loads with battery voltage. It is suggested that positive pole or negative pole of battery and loads be connected to a safety device whose operation current is not twice lower than nominal charging or discharging current.
  • Page 15 Step 1: Wiring and switching on After solar system is wired, check all wirings carefully to make it clear whether all 6 terminals are connected correctly and tightened. According to the order of switching on in the chart, battery first, loads second and solar module third successively to avoid nominal system voltage identification error.
  • Page 16 4 Operation 4.1 PWM Technology (Series Pulse Width Modulation) The controller adopts the advanced series pulse width modulation (PWM) charging mode. With range of 0-100%, it can charge the battery quickly and stably under any condition of solar photovoltaic system. PWM charging mode use automatic conversion duty ratio pulses current to charge the battery.
  • Page 17 is used to prevent heating and excessive battery gassing. The Boost stage remains 120 minutes and then goes to Float Charge. Every time when the controller is powered on, if it detects neither over discharged nor overvoltage, the charging will enter into boost charging stage.
  • Page 18 Equalize Charge WARNING: Risk of explosion! Equalizing flooded battery can produce explosive gases, so well ventilation of battery box is necessary. NOTE: Equipment damage! Equalization may increase battery voltage to the level damaging to sensitive DC loads. Ensure that all load allowable input voltages are greater than the equalizing charging set point voltage.
  • Page 19 4.3 HMI Interface Charging indicator Fault indicator WELCOME V2.35+V2.63 Buttons instruction Cursor down / Number reduce button Cursor up / Number add button Menu / Cursor left button Enter / cursor right button Charging indicator GREEN ON whenever sunlight is available for battery charging and the charging system is normal.
  • Page 20 Fault indicator When the following cases occur, fault indicator red flashing: Solar module: Over current, Measure error of voltage, Short of reverse-protection MOS-I, Short of charging MOS-C, MOS-I or MOS-C disconnection or MOS break in control section; Battery: Over voltage, Measure error of voltage, Over temp; Load: Over load, Short, Short of discharging MOS, Measure error of voltage;...
  • Page 21 4.4 Operation and Displaying Load mode 1. Manual mode(default) This mode is to turn ON and OFF the load by press button. Parameter Detail Note The load will open automatically Press ENTER button to after the controller is initialized. If control load at the standby Manual the battery power is enough and the...
  • Page 22 3. Light ON + Timer When solar module voltage goes below the point of NTTV (Night Time Threshold Voltage) at sunset; the solar controller will recognize the starting voltage and turn on the load after pre-set delay time. Working time 2 is the open time of load in the light mode before dawn.
  • Page 23 Parameter Detail Note Working The open time of load in the light mode The value is set to ZERO Time 1 after dusk means the controller will not work at this working Working The open time of load in the light mode time period;...
  • Page 24 Battery Charging Setting Note Battery Type Sealed (default) Constant value Constant value Flooded Constant value User Defined by user...
  • Page 25 Operation and displaying of controller Initialization Interface When controller is powered on, the following picture will be painted during the initialization: WELCOME V2.36 + V2.63 Main Menu Interface After controller is initialized, the monitoring interface will update automatically. Press button to main menu 1 interface which displays the following contents: 1 Monitoring 2 Device Set...
  • Page 26 System Monitor Interface In the main menu interface, press , the inverse cursor moves between main menu 1 and main menu 2.When the inverse cursor points at 1 Monitoring in the main menu 1, press to enter into the system monitoring interface which displays contents as below.
  • Page 27 TEMP 25.6 °C SOC: Load voltage and current Press and enter into the following interface which indicates actual voltage and current of loads. LOAD 12.5V 5.5A Real-time clock and imaging system status Press and enter into the following interface which indicates real-time clock and graphic system status.
  • Page 28 Introductions to system status icons: Night Charging Normal Normal Icons indicating battery charging are dynamic effects. System status Press and enter into the following interface which indicates system status. PV : Disconnect BATT : NoCharge / Normal LOAD : On DEVICE : Normal...
  • Page 29 PV status Connect Disconnect Measure Err MOS-I Short MOS-C Short MOS Break BATT charging status Equalize Boost Float No Charge BATT status: Normal Error OverTemp LOAD status OverLoad Short Error MOS Short DEVICE status Normal OverTemp When fault with inverse cursor above exists for 2 minutes along without any operation, it will jump into that page automatically.
  • Page 30 Discharging energy statistics Disch. Energy Day: 0.75KWh Mon: 18.53KWh Total: 54.32KWh Device Setting In the main menu, press button to make the inverse cursor point to 2 Device Set, press to enter device setting interface which displays the following contents. When setting in this interface, real time clock will stop running. Please correct real time clock again after parameters are changed.
  • Page 31 The below message box will be prompted after press . Press to choose save or cancel operation. When modification canceled, the interface will go back main menu.. Auto-off time of LCD backlight is 60 seconds as default. Save Parameters Save Cancel If save confirmation is chosen, the system will automatically check the validity of parameters.
  • Page 32 Charging and Discharging Parameters Setting Interface press to enter into charging and discharging parameters setting interface as inverse cursor at 3 Parameter Set in main menu 1. press , it moves back to the previous interface and the inverse cursor points to the position of the first parameter. The following control voltage parameters value must be between 9v and 17v and in strictly accordance with: High Volt Disconnect >...
  • Page 33 Parameter Set Over Volt. Disc : 16.0V Charg Lmt : 15.5V Over Volt. Rect : 15.0V Control parameters interface 2 Press continuously and the inverse cursor will move to the control parameters interface. Press to modify the following control parameters. The value in this interface could be modified only when the battery type is USER defined.
  • Page 34 Parameter Set Boost V. Rect : 13.2V Under V. Rect :12.2V Under V. Warn:12.0V Press continuously and the inverse cursor will move to the control parameters interface. Press to modify the following control parameters. The value in this interface could be modified only when the battery type is USER defined.
  • Page 35 Control parameters interface 5 Press continuously and the inverse cursor will move to the control parameters interface. Press to modify the following control parameters. Parameter Set Range from 0 to 180 Equa.Time : 120Min BoostTime : 120Min Range from 10 to 180 The interface below will prompt only when the SOC is selected in the Batt Mng Mode.
  • Page 36 When save operation confirmed, the indication of successful saving will prompt as follows. After parameters successfully saved, it returns to main menu interface. Parameter Set Under V. Warn : 12.0V SAVE SUCCESS Low V. Disc : 11.1V Discharg Lmt : 10.8V Load Control Interface When the inverse cursor rests on 4 Load Set...
  • Page 37 Manual Default Press to choose ON or OFF as default. After confirmation, press and the messagebox below will prompt. When it is cancelled, the inverse cursor moves back to the main menu interface. Manual Default Save Cancel When save confirmation chosen, the indication of successful saving will occur as follows. After parameters successfully saved, it returns to main menu interface.
  • Page 38 Light On/Off On : 05.0 V Delay 10 m Off : 06.0 V Delay 10 m Press , the inverse cursor moves among each parameters sequencely. Press to modify the values. The below message box will be prompted after press Enter. Press choose save or cancel operation.
  • Page 39 Light On + Timer On : 05.0 V Delay 10 m Off : 06.0 V Delay 10 m Night Time : 10 : 00 Light On + Timer Period 1: 01:00 Period 2: 01:00 Press to modify each parameter. The below message box will be prompted after press .
  • Page 40 Light On + Timer On : 06.0 V Delay 10 m SAVE SUCCESS Off : 05.0 V Delay 10 m Work Time : 10 : 00 : 00 NOTE: W controller will turn off the load output at the sunrise time, because light control Time control interface When the inverse cursor rests on...
  • Page 41 Time Control 2 On Time : : 30 : 00 Off Time : 06 : 00 : 00 Single Double * In the double time control mode, time1 and time2could not overlap. When choosing Single, only value of time1 can be modified. The interface is as follows: Time Control 2 On Time : -- : -- : -- Off Time : -- : -- : --...
  • Page 42 When updating successfully, the prompt will show below and then move back to the main menu. Time Control 2 On Time : 19 : 20 : 00 SAVE SUCCESS Off Time : 07 : 00 : 00 Single Double Nominal Parameter Interface Press , move inverse cursor to 5 Rated...
  • Page 43 Rated Value Batt : 12.0 V Save Cancel Load : 10.0A PV : 10.0A Type : Seal Flood When updating successfully, the prompt will show below and then move back to the main menu. Rated Value Batt : 12.0 V SAVE SUCCESS Load : 10.0A PV : 10.0A...
  • Page 44 Password Ori. PSW: 000000 New PSW: 000000 If changing the value, press to submit and the following message will prompt: Press After confirmed, the cursor will move back to the main menu. Time Control 2 Save Parameters On Time : 19 : 20 : 00 Save Cancel Off Time : 07 : 00 : 00...
  • Page 45 Battery Charge Mode Setting Interface Press , move inverse cursor to 8 Batt Mng Mode, then press and enter into test mode interface below: Batt Mng Mode V.C. If changing the value, press to submit and the following message will prompt: Press After confirmed, the cursor will move back to the main menu.
  • Page 46 Factory Reset Mode Interface Press , move inverse cursor to 9 Factory Reset , then press and enter into test mode interface below: Factory Reset If changing the value, press to submit and the following message will prompt: Press After confirmed, the cursor will move back to the main menu. Factory Reset Cancel When updating successfully, the prompt will show below and then move back to the main...
  • Page 47 Reboot Device Setting Interface Press , move inverse cursor to 10 Reboot Device , then press and enter into test mode interface below: Reboot Device If needing to reboot the device, press to submit and the device will reboot at once. 4.5 remote communication and monitor With special communicate cable, user could monitor the status and modify the parameters.
  • Page 48 PC monitor software(need one private usb to rs485 cable, model: CC-USB-RS485-150U) WARNING: Do not use the standard twisted-net cable to connect the device and PC net interface, or the permanent damage will occur.
  • Page 49 5 Protection, Troubleshooting and Maintenance 5.1 Protection PV Array Short Circuit If PV array short circuit occurs, clear it to resume normal charge automatically. Load Overload If the load current exceeds the rated current of controller current , the controller will disconnect the load. Overloading must be cleared up, then pressing the switch button.
  • Page 50 High Voltage Transients PV is protected against smaller high voltage surge. In lightning prone areas, additional external suppression is recommended. Note: The controller has daily automatic fault recovery function which will reduce the manual operation and can intelligently eliminate the fault caused by non-actual hardware failure.
  • Page 51 Charging and discharging Battery voltage Please restart controller, if the fault circuit is off and monitor sensor is shows Error. abnormal still exists, cut off charging and discharging circuit immediately and contact the supplier to make maintenance. Discharging circuit is off Load power Please reduce the number of electric and monitor shows Over...
  • Page 52 Discharging circuit is off Load circuit is Please check carefully loads and the LOAD monitor short shows Short. connection; It is reactivated after delayed 5 seconds for the first time, 10 seconds for the second time, 15 seconds for the third time, 20 seconds for the fourth time and 25 seconds for the fifth time.
  • Page 53 5.3 Maintenance The following inspections and maintenance tasks are recommended at least two times per year for best performance. Check that the air flow and ventilation around the controller is not blocked. Clear all dirt or fragments on the heat sink. Check all the naked wires to make sure insulation is not damaged for serious solarization, frictional wear, dryness, insects or rats etc.
  • Page 54 6 Technical specifications Model 1024 2024 3024 4524 6024 VS****BN Electrical Parameters Nominal System 12 24VDC Auto Voltage Maximum Battery Voltage Maximum PV Voltage Rated Charge Current Rated Discharge Current Charge Circuit Voltage Drop Discharge Circuit Voltage Drop Self-consumption 15mA@12v; 13mA@24v Communication RS485 / RJ45 interface...
  • Page 55 Model 2048 3048 4548 6048 VS****BN Electrical Parameters Nominal System 12 24 48VDC Auto Voltage Maximum Battery Voltage Maximum PV Voltage Rated Charge Current Rated Discharge Current Charge Circuit Voltage Drop Discharge Circuit Voltage Drop 15mA@12v; 10mA@24v; Self-consumption 9mA@36v; 8mA@48v; Communication RS485 / RJ45 interface Remote temperature...
  • Page 56 Battery Control Parameters All the coefficient is referred to 25 , and twice in 24v system rate, triple in 36v system rate and quadruple in 48v system rate. Battery Type Sealed Flooded User High Volt Disconnect 9~17V Charging limit voltage 9~17V Over Voltage Reconnect 9~17V...
  • Page 57 Threshold voltage value 10V;20V 24V; 30V 36V; 40V 48V Night Time Upper limit Threshold Voltage 1V; 2V 24V; 3V 36V;4V 48V Low limit Default 6V/12V 10V; 20V 24V;30V 36V; 40V 48V Time Upper limit Threshold Voltage 1V; 2V 24V; 3V 36V;4V 48V Low limit Default 5V/12V...
  • Page 58 VS1024BN Dimensions in Millimeters [Inches] VS2024BN Dimensions in Millimeters [Inches]...
  • Page 59 VS2048BN & VS3024BN Dimensions in Millimeters [Inches] 200.6 VS3048BN & VS4524BN Dimensions in Millimeters [Inches]...
  • Page 60 204.8 VS4548BN Dimensions in Millimeters [Inches] 204.8 VS6024BN Dimensions in Millimeters [Inches]...
  • Page 61 VS6048BN Dimensions in Millimeters [Inches]...
  • Page 62 Version number: V1.9...
  • Page 64 BEIJING EPSOLAR TECHNOLOGY CO., LTD. Tel +86-10-82894112 / 82894962 Fax +86-10-82894882 E-mail info@epsolarpv.com Website: www.epsolarpv.com...