EPsolar ViewStar VS1024BN, VS2024BN, VS3024BN, VS4524BN, VS6024BN Solar Charge Controller Operation Manual
Below you will find brief information for ViewStar VS1024BN, ViewStar VS2024BN, ViewStar VS3024BN, ViewStar VS4524BN, ViewStar VS6024BN. The ViewStar series solar charge controller is a versatile and reliable device designed to manage the charging and discharging of batteries in off-grid photovoltaic systems. This manual will guide you through the installation, operation, and troubleshooting of your controller. The ViewStar series features a comprehensive self-diagnostic system and extensive electronic protections, ensuring optimal performance and safety for your solar system.
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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.
ViewStar
—— Solar Charge Controller
Nominal system voltage
12V⁄24V⁄36V⁄48V
Nominal charge / discharge current
10A⁄20A⁄30A⁄45A⁄60A
Final interpretation right of the manual belongs to EPsolar.
Any changes without prior notice!
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............................................................................................ 12
4.2 Battery Charging Information...........................................................................12
4.3 HMI Interface................................................................................................... 15
4.4 Operation and Displaying of Controller............................................................17
4.5 Remote communication and monitor................................................................43
5 Protection, Troubleshooting and Maintenance.............................................................. 45
5.1 Protection......................................................................................................... 45
5.2 Troubleshooting................................................................................................46
5.3 Maintenance..................................................................................................... 49
6 Technical Specifications................................................................................................50
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.
CAUTION: Indicates a critical procedure for safe and proper operation of the controller.
NOTE: Indicates a procedure or function that is important for safe and proper operation of the controller.
General Safety Information
Read all of the instructions and cautions in the manual before installation.
There are no user serviceable parts inside the controller. Do not disassemble or attempt to repair it.
Mount the controller indoors. Prevent exposure to the elements and do not allow water to enter the controller.
Install ViewStar controller in well ventilated places, the ViewStar controller heatsink may become very hot during operation.
Install external fuses/breakers as required.
Disconnect the solar module, load and fuse/breakers near to battery before installing or adjusting the controller.
Power connections must remain tight to avoid excessive heating from a loose connection.
1
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.
2.1 Product Overview
The controller could charge battery and discharge automatically for off-grid photovoltaic
(PV) systems. The charging process has been optimized for long battery life and improved system performance. The comprehensive self-diagnostics and extensive electronic protection can prevent damage against incorrect wiring or system faults.
Features:
32 bit MCU with high speed and high performance
12 bit A/D high-precision sampling to ensure accuracy
Excellent EMC design
Nominal system voltage automatic recognition or user-defined working voltage
High efficient Series mode PWM charging, increase the battery lifetime and improve the solar system performance
Use MOSFET as electronic switch, without any mechanical switch
Wide feasibility and, recognize day or night automatically
Graphical dot-matrix LCD and 4 buttons combinations as HMI (human-machine interface) for full menu and easy operation
Humanized design of browser interface to facilitate the operations
All of control parameters could be set and modified
Several load control methods are supported to convenient for different demand
Support 4 charging preprogram options: Sealed, Gel, Flooded and User-defined
Adopt temperature compensation and update charging and discharging parameters automatically to improve the battery lifetime
With the feature of input filter, the voltage spike could be restrained effectively
2
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
Reverse protection: any combination of solar module and battery
3
2.2 Product Features
VS1024BN / VS2024BN
4
1 – Local temperature sensor
It is used to acquire ambient temperature to do temperature compensation for charging and discharging.
2
–
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
4 buttons used to operate and configure controller
6 – Communication port
Connect remote display unit MT50(Optional Accessories) or PC software
7 – Load terminals
Connect loads.
8 – Battery terminals
Connect batteries.
9 – Solar module terminals
Connect solar modules
10 – Remote temperature sensor interface(optional)
Connect remote temperature sensor (Optional Accessories) to acquire ambient temperature
11 – Battery slot
Mount cell battery(RTC)
5
2.3 Optional Accessories
1. Remote Display Unit (Model:MT50)
The remote display unit is used to monitor system operating information, faults and modify the parameters with displaying on a backlit LCD. The large numerical display and icons are easy to read and large buttons make menus easy to navigate. The unit can be mounted in the wall or the mounting frame. One 2m long cable are attached (the length of cable can be customized) and the mounting box is optional. The MT50 connects to controller through the RJ45 port.
2. Remote temperature sensor (Model:RTS300R47K3.81A)
Remote temperature sensor is used to acquire ambient temperature to undertake temperature compensation for charging and discharging. Standard length of the cable is
3m (could be customized). The RTS300R47K3.81A connects through the 2P-3.81 port.
Note: unplug the RTS, the temperature of battery will be set to a fixed value 25 ºC.
3. Super Parameter Programmer (Model: SPP-01)
The Super Parameter Programmer can realize one-key setting operation which is suitable for bulk quantity products setting in the projects.
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.
6
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. So well ventilation of battery box is recommended.
Avoid direct sunlight and do not install in locations where water can enter the controller.
Loose power connections and/or corroded wires may result in resistive connections that melt wire insulation, burn surrounding materials, or even cause fire. Ensure tight connections and use cable clamps to secure cables and prevent them from swaying in mobile applications.
Gel, Sealed or Flooded batteries are recommended, other kinds please refer to the battery manufacturer.
Battery connection may be wired to one battery or a bank of batteries. The following instructions refer to a singular battery, but it is implied that the battery connection can be made to either one battery or a group of batteries in a battery bank.
Select the system cables according to 3A/mm2 current density.
CAUTION: The ViewStar controller requires at least 150mm of clearance above and below for proper air flow. Ventilation is highly recommended if mounted in an enclosure.
WARNING: Risk of explosion! Never install the controller in a sealed enclose with flooded batteries! Do not install in a confined area where battery gassed can accumulate.
7
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.
150mm(5.9inches)
Warm air
150mm(5.9inches)
Cool air
Step 3: Mark Holes
Mark the four (4) mounting hole locations on the mounting surface.
Step 4: Drill Holes
Remove the controller and drill 4mm holes in the marked locations.
Step 5: Secure Controller
Place the controller and align the mounting holes with the drilled holes in step 4. Secure the controller in place using the mounting screws.
8
3.2 Wiring
NOTE: A recommended connection order has been provided for maximum safety during installation.
NOTE: the controller is common negative one.
CAUTION: Don’t connect the loads with surge 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.
WARNING: Risk of explosion or fire! Never short circuit battery positive (+) and negative (-) or cables.
WARNING: Risk of electric shock! Exercise caution when handling solar wiring. The solar module(s) high voltage output can cause severe shock or injury.
Be careful operation when installing solar wiring.
If nominal system voltage is 12V, make sure battery voltage is higher than 9V before starting the controller. If nominal system voltage is 24V, make sure voltage of battery is no less than 18V; if nominal system voltage is 36V, make sure voltage of battery is no less than 30V; if nominal system voltage is 48V, make sure voltage of battery is no less than 42V. The nominal system voltage can only be identified when controller is powered
9
on automatically.
Controller’s 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. Do not switch on the safety device while it is being installed. Switch on the safety device after the wiring is confirmed.
CAUTION: On occasions that controller must be connected to the ground. For common positive controller, the positive pole must be connected to the ground, on the contrary, the negative pole must be connected to the ground for common negative controller.
* Wire conductor length:
VS1024BN :7mm
VS20**BN :13mm
VS30**BN :10mm
VS45**BN / VS60**BN :14mm
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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.
Solar Array
3
Load
+ +
- + -
Fuse
1
2
Battery
Step 2: Power on
When controller starts up, liquid crystal display (LCD) displays initialization interface and 2 indicator LED will be blinked once. Check if it is correct. If there are no above procedures, refer to section 5 for troubleshooting.
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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. The battery can be fully charged safety and rapidly with the pulse current.
Intermissions make oxygen and hydrogen generated by chemical reaction combined again and absorbed. It can eliminate concentration polarization and ohm polarization naturally and reduce the internal pressure of the battery so that the battery can absorb more power.
Pulse current charging mode makes battery have more time to react which reduces the gassing volume and makes battery improve the acceptance rate of charging current.
4.2 Battery Charging Information
·Bulk Charge
In this stage, the battery voltage has not yet reached boost voltage and 100% of available solar power is used to charge the battery.
·Boost Charge
When the battery has recharged to the Boost voltage setpoint, constant- current regulation
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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.
·Float Charge
After the battery is fully charged in Boost voltage stage, the controller reduces the battery voltage to Float voltage set point. When the battery is fully recharged, there will be no more chemical reactions and all the charge current transmits into heat and gas at this time.
Then the controller reduces the voltage to the floating stage, charging with a smaller voltage and current. It will reduce the temperature of battery and prevent the gassing, also charging the battery slightly at the same time. The purpose of Float stage is to offset the power consumption caused by self consumption and small loads in the whole system, while maintaining full battery storage capacity.
In Float stage, loads can continue to draw power from the battery. In the event that the system load(s) exceed the solar charge current, the controller will no longer be able to maintain the battery at the Float setpoint. Should the battery voltage remains below the boost reconnect charging voltage, the controller will exit Float stage and return to Bulk charge.
·
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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.
NOTE: Equipment damage! Over-charging and excessive gas precipitation may damage the battery plates and activate material shedding on them. Too high an equalizing charge or for too long may cause damage. Please carefully review the specific requirements of the battery used in the system.
Certain types of batteries benefit from periodic equalizing charge, which can stir the electrolyte, balance battery voltage and complete chemical reaction. Equalizing charge increases the battery voltage higher than the standard complement voltage which gasifies the battery electrolyte.
Every month 28 th solar controller will engender equalize charging stage. It will remain
120mins when equalize stage is constant, or it will remain 180mins when equalize charging accomplishes off and on. Equalize charge and boost charge are not carried out constantly in a full charge process to avoid too much gas precipitation or overheating of battery.
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4.3 HMI Interface
Charging indicator Fault indicator
LCD
WELCOME
V2.35+V2.63
!
MENU/←
↑/ +
↓/ -
■ Buttons instruction:
Cursor down / Number reduce button
Cursor up / Number add button
Menu / Cursor left button
Enter / cursor right button
ENTER/→
Charging indicator
GREEN ON whenever sunlight is available for battery charging and the charging system is normal.
Charging LED indicator
Color
Green
Indicator
Steady On
Table 4-1
Charging Status
Charging
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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;
Device: Over temperature.
For trouble shooting, refer to chapter 5.
Fault LED indicator
Color Indicator
Red Flashing
Table 4-2
Charging Status
PV:Measure Err、MOS-I Short、MOS-C
Short、 MOS Break
BATT:OVD、Error、Over Temp
LOAD:Overload、Short、
MOS Short、Error
DEVICE:Over Temp
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4.4 Operation and Displaying
Load mode
1.Manual mode(default)
This mode is to turn ON and OFF the load by press
Parameter
Manual
ON(default)
Manual OFF
Detail
The load will open automatically after the controller is initialized. If the battery power is enough and the controller works well, load will keep open
The load will keep off after the controller is initialized. Only when open load manually, load can be output. If the battery power is enough and the controller works well, load will keep open button.
Note
Press ENTER button to control load at the standby interface in the controller or in the MT50/100;
The load also could be got through or shut down by monitor software in remote
PC;
2.Light On/Off
When solar module voltage goes below the point of NTTV (Night Time Threshold
Voltage) at sunset, the controller will recognize the starting voltage and turn on the load after pre-set time delay when the battery power is enough and the controller works well.
When solar module voltage goes above the point of DTTV (Day Time Threshold Voltage), the solar controller will recognize the starting voltage and turn off the load after pre-set time delay. The pre-set time delay is range of 0 to 99 minutes.
17
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. The load will be on for several hours which users set. If the work time are changed during the process, the controller will not reset the counter.
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Parameter
Working
Time 1
Working
Time 2
Night time
Detail
The open time of load in the light mode after dusk
The open time of load in the light mode before dawn
The controller calculated the total length of the night by self-learning. The time should be more than 3 hours
Note
The value is set to ZERO means the controller will not work at this working time period; the actual time of load-on is relative with night time, working time1 and working time2
4. Timer
The mode includes single and double time intervals. Set the starting and ending time for each time interval and controller works according to the set time interval.
Parameter
Time Control 1
Time Control 2
Single
Detail
Set the begin and end time 1 of the load output
Set the begin and end time 2of the load output
The load output according to time1
Double
● Device Parameters
Parameter
ID
Clock
Password
The load output according to time1 and time2
Detail
Range: 1 - 200
Format:dd-mm-yyyy hh-mm-ss
Default: 000000
19
● Battery Charging Setting
Battery Type
Sealed (default)
GEL flooded
User
Note
Constant value
Constant value
Constant value
Defined by user
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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
3.Parameter Set
4.Load Set
Inverse cursor showing the contents can be operated
Press button to enter into main menu 2 and main menu 3 interface which displays the following contents:
5.Rated Value
6.Test Mode
7. Password
8. Batt Mng Mode
9.Factory Reset
10. Reboot Device
21
System Monitor Interface
In the main menu interface, press or , 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 interface which displays contents as below. Press to enter into the system monitoring or t display every real-time parameters interface circularly.
▼
Solar array voltage and current
The interface shows real-time voltage and current of solar module.
PV
14.5V
7.2A
▼
Battery voltage and current
Press to enter into the following interface which shows actual battery voltage and current. Minus sign with current means that the battery is in discharging status. Positive sign means the battery is in charging.
BATT
12.5V —5.5A
▼
Battery temperature and battery SOC
Press to enter into the following interface which indicates actual temperature and SOC of battery.
22
TEMP
SOC:
25.6 °C
47%
▼
Load voltage and current
Press and current of loads.
and enter into the following interface which indicates actual voltage
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. If choose the manual mode with loads, press in the interface to control loads on and off alternatively.
Sep05 12 : 24 : 23
23
■ Introductions to system status icons:
: Day : Night
: Charging : Normal
:
Normal
:
UVW
:
LVD
:
LVD
: ON
: OFF
﹡
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
24
PV status:
Connect
MOS-I Short
BATT charging status:
Equalize
No Charge
BATT status:
LVD
OVD
LOAD status:
On
Short
DEVICE status:
Normal
Disconnect
MOS-C Short
Boost
UVW
Error
Off
Error
OverTemp
Measure Err
MOS Break
Float
Normal
OverTemp
OverLoad
MOS Short
﹡
When fault with inverse cursor above exists for 2 minutes along without any operation, it will jump into that page automatically.
▼ Charging energy statistics
Day:
Mon:
Total:
Char. Energy
1.17KWh
25.35KWh
98.74KWh
25
▼ Discharging energy statistics
Day:
Disch. Energy
Mon:
Total:
0.75KWh
18.53KWh
54.32KWh
Device Setting
In the main menu, press point to 2.Device Set , press or button to make the inverse cursor 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.
Device Set
Date : 12 – 05 - 2011
Time : 12 : 24 : 23
Device Set
ID: 001
Backlight: 010 sec
In the interface, press every parameter. Pressing or , the inverse cursor moves among button could move the inverse cursor back to main menu. When inverse cursor points at the parameter, the contents of the parameter can be modified. press to increase the value and press to decrease the value. LCD backlight auto-off time can be set between 00 ~999 seconds.
The below message box will be prompted after press . Press or 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.
26
Save Parameters
Save
Cancel
If save confirmation is chosen, the system will automatically check the validity of parameters. If the check is passed, the promptation of successful saving will occur below.
After parameters successfully saved, it returns to main menu interface.
SAVE SUCCESS!
Press and hold both and button for 3 seconds to enter factory mode in the main interface. The authority code to clear Energy Log is 102206 as default.
The clear operation can’t be recalled, so take care!
Device Set
ID : 001
Backlight : 060sec
Energy Log : Clear
27
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 > Charging limit voltage ≥ Equalization voltage ≥ Boost voltage ≥ Float voltage > Boost return voltage; High Volt
Disconnect > Over Voltage Reconnect; Low voltage reconnect > Low voltage disconnect
≥ Charging limit voltage; Under voltage recover > Under voltage warning ≥
Charging limit voltage; Boost return voltage > Low voltage reconnect;
▼
Temperature compensation coefficient
Press or , then the inverse cursor moves among every parameters sequencely. Press compensation coefficient.
or to modify temperature
Parameter Set
Temp Compensate Coeff
0 3.0mV / ºC / 2V
28
▼
Control parameters interface 1
Press continuously and the inverse cursor will move to the control parameters interface. Press or to modify the following control parameters. The value in this interface could be modified only when the battery type is USER defined.
Parameter Set
Over Volt. Disc : 1 6.0V
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 or to modify the following control parameters. The value in this interface could be modified only when the battery type is USER defined.
Parameter Set
Equal Chrg : 1 4.6V
Boost Chrg : 14.4V
Float Chrg : 13.8V
Value is none when GEL battery
29
▼
Control parameters interface 3
Press continuously and the inverse cursor will move to the control parameters interface. Press or to modify the following control parameters. The value in this interface could be modified only when the battery type is USER defined.
Parameter Set
Boost V. Rect : 1 3.2V
Under V. Rect :12.2V
Under V. Warn:12.0V
▼
Control parameters interface 4
Press continuously and the inverse cursor will move to the control parameters interface. Press or to modify the following control parameters. The value in this interface could be modified only when the battery type is USER defined.
Parameter Set
Low V. Rect : 1 2.6V
Low V. Disc : 11.1V
Discharg Lmt : 10.6V
30
▼
Control parameters interface 5
Press continuously and the inverse cursor will move to the control parameters interface. Press or to modify the following control parameters.
Parameter Set
Equa.Time : 120Min
BoostTime : 120Min
Range from 0 to 180
Range from 10 to 180
The interface below will prompt only when the SOC is selected in the Batt Mng Mode.
Parameter Set
Charge : 100%
Discharge : 30%
Constant value
Range from 10 to 80
Only when the inverse cursor moves to the last option, the modified parameters could be saved. Press and the following picture appears.
Press or to choose save or cancel operation. When modification canceled, the interface will go back main menu.
Parameter Set
Under V. Warn : 1 2.0V
Low V. Disc : 11.1V
Discharg Lmt : 10.8V
31
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 : 1 2.0V
Low V. Disc : 11.1V
Discharg Lmt : 10.8V
Load Control Interface
When the inverse cursor rests on 4.Load Set in main menu 1, press enter load control interface with the following contents displayed.
and
Manual
Light On / Off
Light On + Timer
Time
﹡ When set light control threshold voltage, it should meet the requirement , refer to
Chapter 6 Threshold Voltage Value.
▼
Manual control interface
When the inverse cursor rests on Manual in main menu 1, press manual load control interface with the following contents displayed.
and enter
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Manual Default
ON OFF
Press press or to choose ON or OFF as default. After confirmation, and the messagebox below will prompt. When it is cancelled, the inverse cursor moves back to the main menu interface.
Manual Default
Save Cancel
ON OFF
When save confirmation chosen, the indication of successful saving will occur as follows.
After parameters successfully saved, it returns to main menu interface.
Manual Default
SAVE SUCCESS!
OFF ON
▼
Light control interface
When the inverse cursor is at Light On / Off , press interface shown as below: to enter light control
33
Light On/Off
On : 0 5 .0 V Delay :10 m
Off : 06.0 V Delay :10 m
Press or , the inverse cursor moves among each parameters sequencely. Press or to modify the values. The below message box will be prompted after press Enter. Press or to choose save or cancel operation. When modification canceled, the interface will go back main menu.
Light On/Off
On : 0 6 .0 V Delay :10 m
Off : 05.0 V Delay :10 m
When save operation confirmed, the indication of successful saving will prompt as follows. After parameters successfully saved, it returns to main menu interface.
Light On/Off
On : 0 6 .0 V Delay :10 m
Off : 05.0 V Delay :10 m
▼ L
ight control + timer control interface
When the inverse cursor is at Light On + Timer , press control and time control interface.
to enter into light
34
Light On + Timer
On : 0 5 .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 or will be prompted after press to modify each parameter. The below message box
. Press or to choose save or cancel operation. When modification canceled, the interface will go back main menu.
Light On + Timer
Save Cancel
Work Time : 10 : 00 : 00
When save operation confirmed, the indication of successful saving will prompt as follows. After parameters successfully saved, it returns to main menu interface.
35
Light On + Timer
On : 0 6 .0 V Delay :10 m
SAVE SUCCESS!
Off : 05.0 V Delay :10 m
Work Time : 10 : 00 : 00
NOTE: When the “OFF” time is later than local sunrise time, the controller will turn off the load output at the sunrise time, because light control’s priority level is higher!
▼
Time control interface
When the inverse cursor rests on Time in the time control interface, press enter into time control interface. Press or to modify all to parameters of time interval 1.
Time Control 1
On Time : 07 : 20 : 00
Off Time : 15 : 00 : 00
When
Press or is continuously pressed, it will enter into the following interface.
, the inverse cursor moves among every parameters.
Press or to modify value of time interval 2. When choosing
Double time control mode, the load output will accord to time1 and time2.
36
Time Control 2
On Time : 16 : 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 : -- : -- : --
Single Double
If changing the time, press prompt: to submit and the following message will
Time Control 2
On Time : 19 : 20 : 00
Save Cancel
Off Time : 07 : 00 : 00
Single Double
Press or to select “save” to confirm update or cancel. After confirmed, the cursor will move back to the main menu.
37
When updating successfully, the prompt will show below and then move back to the main menu.
Time Control 2
On Time : 19 : 20 : 00
Off Time : 07 : 00 : 00
Single Double
Nominal Parameter Interface press or , move inverse cursor to 5.Rated Value , then press button to enter into nominal parameter interface below. Battery rate and capacity can be modified. the batter rate are 12v, 24v, 36v, 48v or auto. Battery capacity ranges from 1 to 9999AH in the interface,. Press increase or decrease the value.
or to
Rated Value
Batt : 12.0 V 0 070AH
Load : 10.0A
Type : Gel
PV : 10.0A
If changing the value, press prompt: Press or to submit and the following message will to select “save” to confirm update or cancel.
After confirmed, the cursor will move back to the main menu.
38
Rated Value
Batt : 12.0 V
Load : 10.0A
PV : 10.0A
Type : Seal Gel 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
Type : Seal Gel Flood
Test Mode Interface
Press or , move inverse cursor to 6.Test Mode , then press and enter into test mode interface below:
Load:> ON
Test Mode
OFF
Password Setting Interface
Press
or , move inverse cursor to 7.Password , then press and enter into test mode interface below:
39
Password
Ori. PSW: 000000
New PSW: 000000
If changing the value, press to submit and the following message will prompt: Press or to select “save” to confirm update or cancel.
After confirmed, the cursor will move back to the main menu.
Time Control 2
Double Single
When updating successfully, the prompt will show below and then move back to the main menu.
SAVE SUCCESS!
40
Battery Charge Mode Setting Interface
Press or , move inverse cursor to 8.Batt Mng Mode , then press and enter into test mode interface below:
Batt Mng Mode
V.C.
SOC
If changing the value, press to submit and the following message will prompt: Press or to select “save” to confirm update or cancel.
After confirmed, the cursor will move back to the main menu.
Time Control 2
Double Single
When updating successfully, the prompt will show below and then move back to the main menu.
SAVE SUCCESS!
41
Factory Reset Mode Interface
Press or , move inverse cursor to 9.Factory Reset , then press and enter into test mode interface below:
Factory Reset
NO YES
If changing the value, press prompt: Press or to submit and the following message will to select “save” to confirm update or cancel.
After confirmed, the cursor will move back to the main menu.
Factory Reset
OK Cancel
NO YES
When updating successfully, the prompt will show below and then move back to the main menu.
Factory Reset
RESET SUCCESS!
NO YES
42
Reboot Device Setting Interface
Press or , move inverse cursor to 10.Reboot Device , then press and enter into test mode interface below:
Reboot Device
No Yes
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.
1-MT50 display unit( need one standard twisted-net cable, model:
CC-RS485-RS485-200U-MT)
2-Super parameter programmer, SPP-01(Use standard twisted net cable, model:
CC-RS485-RS485-200U).
One-key easily configure and apply to batch setting.
43
3-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.
44
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(≥1.05 times rated discharge current), the controller will disconnect the load. Overloading must be cleared up, then pressing the switch button.
• Load Short Circuit
Fully protected against load wiring short-circuit(≥2 times rated discharge current). After one automatic load reconnect attempt, the fault must be cleared by restarting the controller or pressing the switch button.
• PV Reverse Polarity
Fully protection against PV reverse polarity, no damage to the controller will result.
Correct the miswire to resume normal operation.
• Battery Reverse Polarity
Fully protection against battery reverse polarity, no damage to the controller will result.
Correct the miswire to resume normal operation.
• Battery working voltage error
If battery voltage does not match controller working voltage, controller will stop working.
After correcting the voltage, the failure can be eliminated through pushing load button.
• Damaged Temperature Sensor
If the temperature sensor short-circuited or damaged, the controller will be charging or discharging at the default temperature 25℃ to prevent the battery damaged from overcharging or over discharged.
• Overheating Protection
If the temperature of the controller heat sink exceeds 85℃, the controller will automatically start the overheating protection and stop the charging and discharging.
When the temperature is below 75℃, the controller will resume to work.
45
• 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.
5.2 Troubleshooting
Trouble Shooting
Faults
Charging LED indicator is off during daytime and the monitor shows Disconnect.
monitor shows Measure
Err、MOS-I Short、MOS-C
Short、MOS Break.
Possible reasons
PV array disconnection
MOS-I or MOS-C are damaged.
Table 5-1
Troubleshooting
Check that PV and battery wire connections are correct and tight.
Loads do not work and monitor shows LVD.
Charging and discharging circuit is off and monitor shows OVD.
Charging and discharging circuit is off and the BATT of monitoring interface shows Over Temp.
Battery is over discharged
Battery is over voltage
Operating ambient temperature(local temperature sensor) or battery temperature(remot e temperature sensor) over temperature
Please restart controller; if the fault still exists, switch off controller immediately and contact the supplier to make maintenance.
The controller cut off the output automatically and recover when fully charged.
switch off the wiring of solar array and measure the voltage of battery whether is too high.
When operating ambient temperature or battery temperature reaches exceeds 65º C controller will cut off input and output circuit automatically.
When the temperature is below 55 ℃, controller will automatically reconnect input and output circuit.
46
Charging and discharging circuit is off and monitor shows Error.
Discharging circuit is off and monitor shows Over
Load.
Battery voltage sensor is abnormal
Load power surpasses nominal power
Please restart controller, if the fault still exists, cut off charging and discharging circuit immediately and contact the supplier to make maintenance.
Please reduce the number of electric equipments. When load power reaches 1.05-1.25 times, 1.25-1.5
times and 1.5 times more than nominal value, controller will automatically close loads in 60 seconds, 5 seconds and 1 second, respectively. 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. If over 5 times, push the key ENTER and controller recover output after 10 seconds. In the process of 5-time reactivation, if it is recovered manually, the 5-time reactivation will be circulated again.
When there is any change from night to daytime, restart the self-recovery process. Namely, 5-time circular reactivation can be operated again.
47
Discharging circuit is off and the LOAD monitor shows Short.
Charging and discharging circuit is off and the
LOAD of monitoring interface shows MOS-I
Short、Error.
Load circuit is short
Electronical component damaged.
Charging and discharging circuit is off and the
LOAD monitor shows
Over Temp.
controller is over temperature
Please check carefully loads 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. If over 5 times, push the ENTER key and controller recover output after 10 seconds. In the process of 5-time reactivation, if it is recovered manually, the 5-time reactivation will be circulated again.
When there is any change from night to daytime, restart the self-recovery process. Namely, 5-time circular reactivation can be operated again.
Please restart controller, if the fault still exists, cut off charging and discharging circuit immediately and contact the supplier to make maintenance.
When the temperature of controller exceeds 85 ℃, the controller will cut input and output circuit. when it is below 75 ℃,the controller will automatically reconnect input and output circuit.
48
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. Maintain or replace the wires if necessary.
Check and confirm that LED or LCD is consistent with required. Pay attention to any troubleshooting or error indication .Take corrective action if necessary.
Tighten all the terminals. Inspect for loose, broken, or burnt wire connections.
Confirm that all the terminals have no corrosion, insulation damaged, high temperature or burnt/discolored sign, tighten terminal screws to the suggested torque.
Inspect for dirt, insects and corrosion, and clear up.
Check and confirm that lightning arrester is in good condition. Replace a new one in time to avoid damaging of the controller and even other equipments.
NOTE: Dangerous with electric shock!
Make sure that all power source of controller is cut off when operate
above processes, make inspection or other operations!
49
6 Technical specifications
Model:
VS****BN
1024
Electrical Parameters
Nominal System
Voltage
Maximum Battery
Voltage
Maximum PV Voltage
Rated Battery Current
(A)
Charge Circuit Voltage
Drop
Discharge Circuit
Voltage Drop
Self-consumption
Communication
Remote temperature sensor interface
Ground
Environmental parameters
10
LCD temperature
Working temperature
Enclosure
Mechanical parameters
Terminal (mm 2 )
Net weight (kg)
4
0.3
2024 3024
32V
48V
30
-20º C ~ +70ºC
-25º
C ~ +55ºC
IP30
4524
12V ⁄ 24V Auto recognized
20
≤0.17V
≤ 15mA@12v; ≤13mA@24v
RS485 / RJ45 interface
2ERJ—3.81
Negative to the ground
10
0.4
≤0.69V
16
0.7
45
35
0.8
6024
60
35
1.3
50
Model:
VS****BN
Electrical Parameters
Nominal System
Voltage
Maximum Battery
Voltage
Maximum PV Voltage
Rated Battery Current
(A)
Charge Circuit Voltage
Drop
Discharge Circuit
Voltage Drop
Self-consumption
Communication
Remote temperature sensor interface
Ground
Environmental parameters
LCD temperature
2048
20
3048 4548
12V ⁄ 24V ⁄ 36V ⁄ 48V Auto recognized
30
64V
96V
45
≤0.53V
≤0.16V
≤ 15mA@12v; ≤10mA@24v;
≤ 9mA@36v; ≤8mA@48v;
RS485 / RJ45 interface
2ERJ—3.81
Negative to the ground
-20º
C ~ +70ºC
6048
60
Working temperature
-25º
C ~ +55ºC
IP30 Enclosure
Mechanical parameters
Terminal (mm 2 )
Net weight (kg)
16
0.7
35
0.8
35
1.2
35
1.6
51
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
High Volt Disconnect
Charging limit voltage
Over Voltage Reconnect
Equalization voltage
Boost voltage
Float voltage
Gel
16V
15V
15V
——
14.2V
13.8V
Sealed
16V
15V
15V
14.6V
14.4V
13.8V
Flooded
16V
15V
15V
14.8V
14.6V
13.8V
Boost return voltage
Low voltage reconnect
Under voltage recover
Under voltage warning
13.2V
12.6V
12.2V
12V
13.2V
12.6V
12.2V
12V
13.2V
12.6V
12.2V
12V
9~17V
9~17V
9~17V
9~17V
Low voltage disconnect
Discharging limits voltage
11.1V
10.6V
11.1V
10.6V
11.1V
10.6V
9~17V
9~17V
Equalize duration
Boost duration
——
120min
120min
120min
120min
120min
0~180min
10~180min
The following rules must be observed when modify the parameters value in user battery type(factory default value is the same as sealed type):
Rule1: High Volt Disconnect > Charging limit voltage ≥ Equalization voltage ≥
Boost voltage ≥ Float voltage > Boost return voltage;
Rule2: High Volt Disconnect > Over Voltage Reconnect;
Rule3: Low voltage reconnect > Low voltage disconnect ≥ Charging limit voltage
Rule4: Under voltage recover > Under voltage warning ≥ Charging limit voltage;
Rule5: Boost return voltage > Low voltage reconnect
User
9~17V
9~17V
9~17V
9~17V
9~17V
9~17V
52
Threshold voltage value
Night Time
Threshold Voltage
Upper limit
Low limit
Default
Day Time
Threshold Voltage
Upper limit
Low limit
Default
10V;20V∕24V; 30V∕36V; 40V∕48V
1V; 2V∕24V; 3V∕36V;4V∕48V
6V/12V
10V; 20V∕24V;30V∕36V; 40V∕48V
1V; 2V∕24V; 3V∕36V;4V∕48V
5V/12V
Temperature compensate
Temperature compensate coefficient
Upper limit
Low limit
Default
0mV∕℃∕2V
-9mV∕℃∕2V
-3mV∕℃∕2V @25℃
* Compensation of equalize, boost, float and low voltage disconnect voltage.
SOC parameters
Precent of charging
Precent of discharging
100% constant value
10~80%, Low SOC reconnect is higher Low SOC disconnect than 5%
53
Φ4.5
150
162
VS1024BN Dimensions
Φ4.5
150
162
VS2024BN Dimensions
Φ4.2
191
200
VS2048BN & VS3024BN Dimensions
Φ4.2
191
200.6
VS3048BN & VS4524BN Dimensions
Φ4.5
195
204.8
VS4548BN Dimensions
Φ4.5
195
204.8
VS6024BN Dimensions
185
205
195
64
Φ5
VS6048BN Dimensions
130 174

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Key features
- 32 bit MCU with high speed and high performance
- High efficient PWM charging
- Graphical dot-matrix LCD and 4 buttons combinations as HMI
- Remote communication and monitor via RS-485 ports
- Electronic protection: Overheating, over discharging, overload, and short circuit
- Reverse protection: any combination of solar module and battery
- Several load control methods: manual, light on/off, light on + timer, timer
- Support 4 charging preprogram options: Sealed, Gel, Flooded and User-defined
- Adopt temperature compensation
- Actual Power Display and record function