30A PWM Viewstar Charge Controller

ViewStar Series

RENOGY 10A | 20A | 30A

Pulse Width Modulation Solar Charge Controller Manual

2775 E. Philadelphia St., Ontario CA 91761

1-800-330-8678

Important Safety Instructions

Please save these instructions.

This manual contains important safety, installation, and operating instructions for the charge controller. The following symbols are used throughout the manual to indicate potentially dangerous conditions or important safety information.

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 to the safe and proper operation of the controller.

General Safety Information

Read all of the instructions and cautions in the manual before beginning the installation.

There are no serviceable parts for this controller. Do NOT disassemble or attempt to repair the controller.

Do

NOT

allow water to enter the controller.

Make sure all connections going into and from the controller are tight.

Charge Controller Safety

NEVER

connect the solar panel array to the controller without a battery. Battery must be connected first.

Ensure input voltage does not exceed 48 VDC to prevent permanent damage. Use the

Open Circuit (V oc

) to make sure the voltage does not exceed this value when connecting panels together.

Do not exceed 10A (VS1024BN) or 20A (VS2024BN) or 30A (VS3024BN). The Short

Circuit (I sc

) of the solar array should be less than 10A (VS1024BN) or 20A (VS2024BN) or

30A (VS3024BN).

Battery Safety

Use only sealed lead-acid, flooded, or gel batteries which must be deep cycle.

Explosive battery gases may be present while charging. Be certain there is enough ventilation to release the gases.

1

Be careful when working with large lead acid batteries. Wear eye protection and have fresh water available in case there is contact with the battery acid.

Carefully read battery manuals before operation.

Do

NOT

let the positive (+) and negative (-) terminals of the battery touch each other.

Recycle battery when it is replaced.

Over-charging and excessive gas precipitation may damage the battery plates and activate material shedding on them. Too high of an equalizing charge or too long of one may cause damage. Please carefully review the specific requirements of the battery used in the system.

Equalization is carried out only for non-sealed / vented/ flooded / wet cell lead acid batteries.

Do

NOT

equalize sealed / VRLA type AGM / Gel cell batteries

UNLESS

permitted by battery manufacturer.

WARNING:

Connect battery terminals to the charge controller BEFORE connecting the solar panel(s) to the charge controller.

NEVER connect solar panels to charge controller until the battery is connected.

WARNING:

Do NOT connect any inverters or battery charger into the load terminal of the charge controller.

WARNING:

Once equalization is active in the battery charging, it will not exit this stage unless there is adequate charging current from the solar panel. There should be NO load on the batteries when in equalization charging stage.

2

Table of Contents

General Information

......................................................................................................................................... 4

Optional Components

.................................................................................................................................... 6

Identification of Parts

..................................................................................................................................... 7

Installation

............................................................................................................................................................. 8

Operation

............................................................................................................................................................ 12

1. Monitoring

................................................................................................................................................ 13

2. Device Set

................................................................................................................................................. 14

3. Parameter Set

......................................................................................................................................... 14

4. Load Set

..................................................................................................................................................... 15

6. Test Mode

................................................................................................................................................. 17

7. Password

.................................................................................................................................................. 17

8. Batt Mng Mode

....................................................................................................................................... 17

9. Factory Reset

......................................................................................................................................... 17

10. Reboot Device

..................................................................................................................................... 18

System Status Icons

.................................................................................................................................... 18

System Status Glossary

............................................................................................................................ 19

System Status Troubleshooting

........................................................................................................... 20

Maintenance

...................................................................................................................................................... 21

Fusing

................................................................................................................................................................... 22

Technical Specifications

........................................................................................................................... 23

Electrical Parameters

................................................................................................................................. 23

Charging Parameters

................................................................................................................................. 24

Charging Parameters Glossary

............................................................................................................. 25

Threshold Voltage Parameters

.............................................................................................................. 26

Dimensions

........................................................................................................................................................ 27

Wiring Diagrams

............................................................................................................................................. 30

3

General Information

The PWM 30ACC-ViewStar is an advanced controller for off-grid solar applications. This high performance PWM charging process is optimized for a long battery life and improved system performance. It can be used for 12V or 24V battery bank. The control is embedded with selfdiagnostics and electronic protection functions that prevent damages from installation mistakes or system faults.

Key Features

Automatic recognition for 12V or 24V battery banks.

Dot-matrix, backlit LCD for displaying operating information and data.

Unique dualtimer for the controller’s load terminal.

Full control of parameter settings that can be adjusted.

Sealed, Gel, and Flooded battery option.

4 Stage charging: Bulk, Boost. Float, and Equalization

Temperature compensation and correcting the charging and discharging parameters automatically, improving battery lifetime.

RJ45 interface for use with the remote meter MT-50, which conveniently checks the operating parameters of the charge controller

Protection against: overcharging, over-discharging, overload, short-circuit, and reverse polarity.

Negative ground controller.

PWM Technology

The PWM 30ACC-ViewStar utilizes Pulse Width Modulation (PWM) technology for battery charging. Battery charging is a current based process so controlling the current will control the battery voltage. For the most accurate return of capacity, and for the prevention of excessive gassing pressure, the battery is required to be controlled by specified voltage regulation set points for Absorption, Float, and Equalization charging stages. The charge controller uses automatic duty cycle conversion, creating pulses of current to charge the battery. The duty cycle is proportional to the difference between the sensed battery voltage and the specified voltage regulation set point. Once the battery reached the specified voltage range, pulse current charging mode allows the battery to react and allows for an acceptable rate of charge for the battery level.

4

Four Charging Stages

The ViewStar charge controllers have a 4-stage battery charging algorithm for a rapid, efficient, and safe battery charging. They include: Bulk Charge, Boost Charge, Float Charge, and

Equalization.

Bulk Charge:

This algorithm is used for day to day charging. It uses 100% of available solar power to recharge the battery and is equivalent to constant current.

Boost Charge:

When the battery has charged to the Boost voltage set-point, it undergoes an absorption stage which is equivalent to constant voltage regulation to prevent heating and excessive gassing in the battery. The default time for this is 120 minutes in the ViewStar controllers but it can be customizable as needed.

Float Charge:

After Boost Charge, the controller will reduce the battery voltage to a float voltage set point. Once the battery is fully charged, there will be no more chemical reactions and all the charge current would turn into heat or gas. Because of this, the charge controller will reduce the voltage charge to smaller quantity, while lightly charging the battery. The purpose for this is to offset the power consumption while maintaining a full battery storage capacity. In the event that a load drawn from the battery exceeds the charge current, the controller will no longer be able to maintain the battery to a Float set point and the controller will end the float charge stage and refer back to bulk charging.

Equalization:

Is carried out every 28 days of the month. It is intentional overcharging of the battery for a controlled period of time. 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.

5

WARNING:

Once equalization is active in the battery charging, it will not exit this stage unless there is adequate charging current from the solar panel. There should be NO load on the batteries when in equalization charging stage.

WARNING:

Over-charging and excessive gas precipitation may damage the battery plates and activate material shedding on them. Too high of equalizing charge or for too long may cause damage. Please carefully review the specific requirements of the battery used in the system.

WARNING:

Equalization may increase battery voltage to a level damaging to sensitive DC loads.

Ensure that all load allowable input voltages are greater than the equalizing charging set point voltage.

Optional Components

*The PWM10A/20A/30ACC-Viewstar controller is shipped by itself, without any additional components.

Optional components that require a separate purchase:

Remote Temperature Sensor (TS-R): Measures the temperature at the battery and uses this data for very accurate temperature compensation. The sensor is supplied with a 6.6ft cable length that connects to the charge controller. (Figure 1)

NOTE

: The 10A/20A/30A-ViewStar controller comes equipped with a temperature sensor, but it is

ONLY

for the charge controller’s temperature compensation

, not the battery’s

Temperature compensation.

Figure 1

LCD Display Tracer Meter (MT-50):

Allows for real time monitoring of the charge controller. Perfect for circumstances where the user cannot easily access the controller or modify its parameters. It is supplied with a 5.9 ft. cable and a mounting frame that connects to the RJ45 port on the

ViewStar. (Figure 2)

External Battery (RTC): Allows for access to the charge controller

’s saved settings, charge accumulation, and discharge accumulation without connecting a deep cycle marine battery. It keeps track of the date/time for automatic equalization charging purposes.

Figure 2

6

3

8

Identification of Parts

2

1

7

4 6

5

3

2

6

1

4

5

Figure 3: 10A/ 20A ViewStar Model

Figure 4: 30A ViewStar Model

8

Key Parts

PV

Terminal

BATTERY

Terminal

LOAD

Terminal

Figure 5: 30A ViewStar Model

1. Charging LED Indicator

LED indicator showing charge status.

2. Fault LED indicator

LED indicator showing system faults.

3. Local Temperature Sensor

acquires ambient temperature to perform temperature

7

7 compensation for charging and discharging.

4. Liquid Crystal Display (LCD)

monitoring interface for solar parameters and system status.

5. Navigation Buttons

operate and configure the charge controller.

6. External battery slot

mount cell battery (RTC)

7. RJ45 port for MT-50 Tracer (optional accessory)

connects remotely to temperature sensor in order to acquire ambient temperature.

8. TS-R port for Remote Temperature Sensor (optional accessory)

acquires temperature of the battery to perform temperature compensation.

7

Installation

Recommended tools to have before installation:

Flathead Screwdriver Multi-Meter

WARNING:

Connect battery terminal wires to the charge controller FIRST then connect the solar panel(s) to the charge controller. NEVER connect solar panel to charge controller before the battery.

WARNING:

Do NOT connect any inverters or battery chargers into the load terminal of the charge controller.

INVERTER

BATTERY

CHARGER

HIGH AMP

DRAWING DEVICE

CAUTION:

Do not over-torque or over tighten the screw terminals. This could potentially break the piece that holds the wire to the charge controller.

CAUTION:

Refer to the technical specifications for max wire sizes on the controller and for the maximum amperage going through wires.

You are now ready to begin connecting your battery to your charge controller.

8

1

Battery

2

3

1

Load (Optional)

2

9

1

Solar Panels

2

3

1

Temperature Sensor (if applicable)

10

1

MT-50 Tracer (If applicable)

2

Mounting Recommendations:

WARNING:

Never install the controller in a sealed enclosure with flooded batteries. Gas can accumulate and there is a risk of explosion.

1. Choose Mounting Location

place the controller on a vertical surface protected from direct sunlight, high temperatures, and water. Make sure there is good ventilation.

2. Check for Clearance

verify that there is sufficient room to run wires, as well as clearance above and below the controller for ventilation. The clearance should be at least

6 inches (150mm).

3. Mark Holes

4. Drill Holes

5. Secure the charge controller.

6 inches

(150mm)

6 inches

(150mm)

11

Operation

After connecting the battery to the charge controller, the controller will turn on automatically. The user will be prompted by an initialization screen for a few seconds followed by the Default Screen.

Welcome

V2.37+V2.65

Use the following buttons to maneuver through the menu:

MENU/ 

Menu / Cursor Left

 /

 / -

Cursor up / Number add button

Cursor down / Number

ENTER/  reduce button

Enter / Cursor right button

Jan01 12:12:12

Select selection

MENU/ 

to display the screen

1. Monitoring

2. Device Set

3. Parameter Set

4. Load Set

5. Rated Value

6. Test Mode

7. Password

8. Battery Mng Mode

9. Factory Reset

10. Reboot Device

NOTE:

In some models, you might be prompted to enter a password. Simply put “0” all the way through and press enter.

NOTE: To customize charge parameters, TYPE must be set to USER under 5. Rated Value.

NOTE: The values found in your controller are default values and will not necessarily match the ones listed. The values on this table are to show the user what the different screens are used for.

NOTE: You do NOT have to program the control. These parameters are for extra features. Once you connect the battery the settings are automatically synced.

12

1. Monitoring

PV

0.0V 0.0A

BATT

12.5V 0.0A

TEMP 20.0 C °

SOC 7%

LOAD

12.5V 0.0A

PV: Disconnect

BATT: NoCharge/ Normal

LOAD: On

DEVICE: Normal

Charg. Energy

Day: 0.00kWh

Mon: 0.00kWh

Total: 0.00kWh

Jan01 12:12:12

Indicates the voltage (V) and amperage (A) that the solar panel(s) are delivering to the controller

Indicates the voltage (V) and amperage (A) that the solar panel(s) are delivering to the battery

Indicates the ambient temperature as well as the SOC

(State of charge) of the battery

NOTE: If the remote temperature sensor is connected, the temperature will reflect that temperature instead

Indicates Load voltage (V) and amperage (A) draw

System status of components

—PV panels, Battery status, Load status, and Device functionality. Refer to

System Status Glossary for more information

The kilowatt hours accumulated in a day, Month, and total since the controller has been turned on

NOTE: Once the battery is disconnected, the values are reset to 0 unless there is an external battery installed on the controller face

System status icons, date, and time. Refer to System

Status Icons for more information

13

2. Device Set

Device Set

Date: 0 0-00-0000

Time: 00:00:00

Save Parameters?

> Save Cancel

Device Set

ID: 0 01

Backlit: 000 sec

Modify the date and time for the charge controller.

Time is displayed in military time (24Hr) and will be reflected in the default screen. Select Save when finished. The user will have to select save parameters after every screen.

Modify the time the backlight is on for the charge controller. Backlit operation is in effect once the last button is pressed. The user could use the ID to connect to a tracer meter and save parameters. Select

Save Parameters when finished.

Choose between Celsius or Fahrenheit when viewing system status temperature.

Device Set

Temp Unit:

> Cel Fah

3. Parameter Set

NOTE: To customize charge parameters, TYPE must be set to USER under 5. Rated Value.

Otherwise this screen is only for information in regards to the charge parameters.

NOTE: Minimum and maximum charge parameter values can be found in Technical

Specifications

Parameter Set

Temp Compensate Coeff

0 3.0 mV / C ° / 2V

Parameter Set

Over Vol. Disc: 1 6.0V

Charg Lmt: 15.0V

Over Volt. Rect: 15.0V

Indicates Temperature Compensation. Temperature fluctuation can affect performance in the system.

Therefore, the purpose of temperature compensation is to adjust the performance of the system to keep the system functioning normally.

Parameters for Over-Voltage Disconnect, Charging

Limit, and Over-Voltage Reconnection.

14

Parameter Set

Equal Chrg: 1 4.6V

Boost Chrg:

Float Chrg:

14.4V

13.8V

Parameter Set

Boost V. Rect: 1 3.2 V

Under V.

Under V.

Rect: 12.2 V

Warn: 12.0 V

Parameter Set

Low V. Rect: 1 2.6V

Low V. Disc: 11.1V

Discharg Lmt: 10.6V

Parameter Set

Equa. Time: 1 20Min

Boost Time: 120Min

4. Load Set

Manual

Light On/Off

Light On+Timer

Timer

Manual Default

>ON

OFF

Parameters for commencing Equalization Charging,

Boost Charging, and Float Charging.

Parameters for Boost Voltage Reconnect, Boost

Under-Voltage Reconnect, and Boost Under-Voltage warning.

Parameters for controller Low Voltage-Reconnect,

Low Voltage-Disconnect, and the Discharge Limit.

Parameter for setting a time duration for when the controller approaches Equalization Charging and

Boost Charging.

A load selection menu allows the user to control the load terminal activation automatically, manually, or with a timer.

This function will set the controller to manual mode by default so the user is able to control when to turn the load on or off.

NOTE: The user will need to set delay time to

“0” so that manual mode can be instant as opposed to waiting

for the delay time to pass.

15

Manual

Light On/Off

Light On+Timer

Time

Light On/Off

On:

0

5.0V Delay: 10m

Off: 06.0V Delay: 10m

Light On + Timer

On:

0

5.0V Delay: 10m

Off: 06.0V Delay: 10m

Night Time: 12:00

Time Control 1

On Time:

1

9:00:00

Off Time: 06:00:00

5. Rated Value

In Light On/Off, the user sets parameters to turn the load on or off.

The load terminal automatically turns on when the solar voltage goes BELOW the point of NTTV (Night

Time Threshold Voltage).The load automatically turns off when the voltage goes ABOVE the point of DTTV

(Day Time Threshold Voltage). There is a delay between turning the load on or off and can be programmed to be from 0-99minutes.

NOTE: Minimum and maximum charge parameter values can be found in Technical Specifications

Similar to Light On/Off parameter with the addition of a timer that the user sets in order to indicate how long a load will be on or off. The user also sets an appropriate time for when it is night time.

NOTE:

Timer needs to be activated for it to work.

Using a 24-hour clock, the user is able to set the time for when the load will turn on and the time for when the load will turn off.

NOTE: To customize charge parameters, BATT must be set to USER

Load: 20.0A

Type: Seal

Rated Value

Batt:

AUTO

0200AH

PV:20.0A

For BATT: the user selects which battery describes the one they have

12V, 24V, or AUTO

For Type: The user chooses from Gel, Sealed,

Flooded or USER

The user is able to modify the Amp-hours (AH) to reflect the actual battery capacity.

NOTE: The Load and PV options will not be adjustable since the value is based on the charge controller.

16

6. Test Mode

Test Mode

Load: >

ON

OFF

Test the load of the charge controller. Once settings have been set in 4. Load Set, the user is able to test whether the load will turn on upon direction.

NOTE:

Delay must be set to “0” to see immediate results.

7. Password

Password

Ori.PSW: 000000

NewPSW: 000000

Setting a password for the controller prohibits the user from programming the controller unless the password is set.

NOTE:

Default Password is “00000” if it prompts the user to enter a password before they set one.

8. Batt Mng Mode

Batt Mng Mode

> V.C. SOC

Voltage Compensation and State of Charge Battery

Managing modes to determine battery charge status.

NOTE: It is not possible to measure actual SOC, but rather express it as a percentage of some reference. In this case it is voltage alone (VC) or battery capacity over a time span (SOC).

VC. converts a reading from battery voltage to determine SOC by utilizing the charge controller’s algorithm for known discharge. It is highly sensitive to temperature changes and battery disturbances thus having less accurate battery charge statuses.

SOC is more accurate by keeping track of the voltage and current flow in and out of the battery when reporting battery charge status. The SOC is determined by multiplying current by the time for which it flowed.

9. Factory Reset

>NO

Factory Reset

YES

Reset the controller to factory settings. This will erase any customized parameters the user may have set.

17

Really to reset?

>

NO

YES

10. Reboot Device

>

NO

Reboot Device?

YES

The screen will be followed up by a secondary screen to make sure a factory reset is what the user intends to do.

This parameter will reboot the charge controller without losing any of the customized settings the user may have set.

System Status Icons

PV

Jan01 12:12:12

BATTERY SYSTEM LOAD

Day/ PV

Charging

Battery

Charging

System

Normal

Load ON

Night/ PV

Not

Charging

Battery

Level Full UVW

Load OFF

Battery Low

Voltage

LVD

18

System Status Glossary

PV: Disconnect

BATT: NoCharge/ Normal

LOAD: On

DEVICE: Normal

PV Status

Connect

Disconnect

Measure Err

Over Current

MOS-I Short

MOS-C Short

MOS Break

BATT Status

Equalize

Boost

Float

NoCharge

LVD

UVW

Normal

OVD

Error

OverTemp

LOAD Status

Meaning

PV is Connected

PV is Disconnected

Measurement Error at the PV terminal

PV is Overcurrent

(Metal oxide semiconductor) used for PV reverse polarity is short.

(Metal oxide semiconductor) used for charging is short.

(Metal oxide semiconductor) in control circuit is damaged

Meaning

Battery is equalizing

Battery is in boost mode

Battery is in float mode

No charge to battery

Low voltage disconnect

Under voltage warning

Battery is normal

Over voltage disconnect

Battery experiencing error

Battery is too hot, over temperature

Meaning

On

Off

Overload

Short

Load On

Load Off

Load is overloaded

Load connection is short

Error

MOS Short

Load experiencing error

Metal oxide semiconductor used in load is short

DEVICE Status Meaning

Normal Charge controller normal

OverTemp Charge controller too hot

19

System Status Troubleshooting

Indicator Status

Connect

Disconnect

Description

The controller recognizes the PV solar panel(s). System is functioning normally.

Troubleshoot

N/A

The controller does not recognize the solar panel(s).

If it is nighttime, the light will be off. Otherwise double check that the poles are not switched.

Indicator

Indicator

PV Status

Measure Err

Troubleshoot

Check connections and make sure there is not a short somewhere along the line. Use a multi-meter to determine whether the panel(s) output is normal prior to connection. Then reset the controller to factory settings.

OverCurrent

Use a multi-meter to determine whether solar panel(s) specification match the nominal parameters of the charge controller.

MOS-I Short

MOS-C Short

MOS Break

Reset the controller to factory settings. If problem persists, contact the supplier

Reset the controller to factory settings. If problem persists, contact the supplier

Reset the controller to factory settings. If problem persists, contact the supplier

BATT Status Troubleshoot

Error

Check that the battery connections are properly connected to the battery terminals of the charge controller. Make sure there is no short along the line. Reboot the controller. If problem continues, reset the controller.

20

Indicator

OverTemp

OVD

Place the controller in a cooler environment where it will automatically reconnect.

Check battery parameters and make sure they are suitable to be used with the charge controller. Use a multi-meter to check battery voltage to reaffirm the controller’s diagnosis.

LOAD Status Troubleshoot

Overload

Short

Check to make sure the devices connected to the load terminal are within the load specification. If so, then reduce the number of loads and it will reconnect automatically.

Check the device wiring and connections going into the load.

There may be a break in the wire.

Error

Reset the controller to factory settings. If problem persists, contact supplier.

MOS Short

Reset the controller to factory settings. If problem persists, contact supplier.

Device Status Troubleshoot Indicator

OverTemp

Place controller in cooler environment and it will automatically reconnect.

Maintenance

For best controller performance, it is recommended that these tasks be performed from time to time.

1. Check that controller is mounted in a clean, dry, and ventilated area.

2. Check wiring going into the charge controller and make sure there is no wire damage or wear.

3. Tighten all terminals and inspect any loose, broken, or burnt up connections

4. Make sure readings in the LCD and LED are consistent.

21

Fusing

Fusing is a recommended in PV systems to provide a safety measure for connections going from panel to controller and controller to battery. Remember to always use the recommended wire gauge size based on the PV system and the controller.

NEC Maximum Current for different Copper Wire Sizes

AWG 16 14 12 10 8 6 4 2

Max.

Current

0

10A 15A 20A 30A 55A 75A 95A 130A 170A

Fuse from Controller to Battery

Controller to Battery Fuse = Current Rating of Charge Controller

Ex. 30A ViewStar CC = 30A fuse from Controller to Battery

Fuse from Solar Panel(s) to Controller

Ex. 200W; 2 X 100 W panels

Series:

Total Amperage = I sc1

= I sc2

= 5.75A * 1.56

Fuse = minimum of 5.75A * 1.56 = 8.97A = 9A fuse

Parallel

Total Amperage = I sc1

+ I sc2

= (5.75A + 5.75A) * 1.56

Fuse = minimum of 11.5 * 1.56 = 17.94 = 18A fuse

22

Technical Specifications

Electrical Parameters

Model

Nominal system voltage

Rated battery current

Rated load current

Max. battery voltage

Max. Solar Input

Equalize charging voltage

Boost charging voltage

Float charging voltage

Low voltage reconnect voltage

Low voltage disconnect voltage

Self-consumption

Grounding

Temp. compensation

Relative humidity

Communication

LCD temperature

Working temperature

Humidity

Enclosure

Overall dimension

Terminals

VS1024BN

10A

10A

VS2024BN

12V/24V auto recognition

20A

20A

VS3024BN

30A

30A

32V

48V

Sealed: 14.6V, Flooded: 14.8V, User-defined: 9~17V

Gel: 14.2V, Sealed: 14.4V, Flooded: 14.6V, User-defined: 9~17V

Gel /Sealed /Flooded: 13.8V, User-defined: 9~17V

Gel /Sealed /Flooded: 12.6V, User-defined: 9~17V

Gel /Sealed /Flooded: 11.1V, User-defined: 9~17V

≤15mA(12V); ≤10mA(24V);

Common negative

-3mV/

℃/2V

10%~90% Non-condensation

RS485 / RJ45 interface

-20

℃ ~ +70℃

-25

℃ ~ +55℃

≤95% N.C.

IP30

6.38x3.35x1.57inch 6.38x3.94x1.97inch

(162x85x40mm)

4mm

2

(Up to #12 AWG)

(162x100x50mm)

10mm

2

(Up to #8 AWG)

7.87x4.05x2.28inch

(200x103x58mm)

16mm

2

(Up to #6 AWG)

0.66 lbs. (0.3kg) 0.88 lbs. (0.4kg) 1.54 lbs. (0.7kg)

Gel, Sealed (AGM), and Flooded

Net weight

Battery Type

23

Charging Parameters

NOTE: Under the USER battery setting, the parameters can be adjusted within the boundaries of

the max and min values listed below.

Parameter Battery type Gel Sealed

High Volt Disconnect

(Over-voltage disconnect)

Charging Limit Voltage

Default 16.0V; x2/24V

Max 17.0V; x2/24V

Min 15.0V; x2/24V

Default 15.0V; x2/24V

Max

Min

16.0V; x2/24V

14.0V; x2/24V

Default 15.0V; x2/24V

Over Voltage Reconnect

Equalization Voltage

Max

Min

Default

Max

Min

Boost Voltage

Default

Max

Min

Float Voltage

Default

16.0V; x2/24V

14.0V; x2/24V

N/A

N/A

N/A

16.0V; x2/24V

17.0V; x2/24V

15.0V; x2/24V

15.0V; x2/24V

16.0V; x2/24V

14.0V; x2/24V

15.0V; x2/24V

16.0V; x2/24V

14.0V; x2/24V

14.6V; x2/24V

15.2V; x2/24V

14.2V; x2/24V

14.2V; x2/24V 14.4V; x2/24V

15V; x2/24V 15V; x2/24V

13.8V; x2/24V 13.8V; x2/24V

13.8V; x2/24V 13.8V; x2/24V

Max

Min

Boost Return Voltage

Default

Max

14.2V; x2/24V 14.2V; x2/24V

13.2V; x2/24V 13.2V; x2/24V

13.2V; x2/24V 13.2V; x2/24V

13.5V; x2/24V 13.5V; x2/24V

Min 12.7V; x2/24V 12.7V; x2/24V

Low Voltage Reconnect

Default

12.6V; x2/24V 12.6V; x2/24V

Max

Min

Under Voltage Recover

Default

12.9V; x2/24V

12.3V; x2/24V

12.2V; x2/24V

12.9V; x2/24V

12.3V; x2/24V

12.2V; x2/24V

Max

Min

Under Voltage Warning

Default

Max

Min

Low Voltage Disconnect

Default

Max

Min

Discharging Limit Voltage

Default

Equalize Duration

Boost Duration

Max

Min

N/A

N/A

12.6V; x2/24V 12.6V; x2/24V

11.8V; x2/24V 11.8V; x2/24V

12.0V; x2/24V 12.0V; x2/24V

12.4V; x2/24V 12.4V; x2/24V

11.6V; x2/24V 11.6V; x2/24V

11.1V; x2/24V 11.1V; x2/24V

11.8V; x2/24V 11.8V; x2/24V

10.5V; x2/24V 10.5V; x2/24V

10.6V; x2/24V 10.6V; x2/24V

11V; x2/24V

N/A

2 hours

11V; x2/24V

10.5V; x2/24V 10.5V; x2/24V

2 hours

2 hours

Flooded

16.0V; x2/24V

17.0V; x2/24V

15.0V; x2/24V

15.0V; x2/24V

16.0V; x2/24V

14.0V; x2/24V

15.0V; x2/24V

16.0V; x2/24V

14.0V; x2/24V

14.8V; x2/24V

15.2V; x2/24V

14.2V; x2/24V

14.6V; x2/24V

15V; x2/24V

13.8V; x2/24V

13.8V; x2/24V

14.2V; x2/24V

13.2V; x2/24V

13.2V; x2/24V

13.5V; x2/24V

12.7V; x2/24V

12.6V; x2/24V

12.9V; x2/24V

12.3V; x2/24V

12.2V; x2/24V

12.6V; x2/24V

11.8V; x2/24V

12.0V; x2/24V

12.4V; x2/24V

11.6V; x2/24V

11.1V; x2/24V

11.8V; x2/24V

10.5V; x2/24V

10.6V; x2/24V

11V; x2/24V

10.5V; x2/24V

2 hours

2 hours

24

NOTE: The following rules MUST be obliged when setting custom parameters.

Rule 1:

High Volt Disconnect > Charging limit voltage ≥ Equalization voltage ≥ Boost voltage ≥ Float voltage > Boost return voltage;

Rule 2: High Volt Disconnect > Over Voltage Reconnect;

Rule 3: Charging Limit Voltage > Low voltage reconnect > Low voltage disconnect;

Rule 4: Charging Limit Voltage > Under voltage recover > under voltage warning;

Rule 5: Boost return voltage > Low voltage reconnect;

Charging Parameters Glossary

High Volt Disconnect

users can use the default parameters or assign a rated voltage value that the charge controller will operate. When and if the charge controller experiences a voltage higher than what is assigned, it will disconnect itself from the circuit; ceasing charge.

Charging Limit Voltage

depending on the batteries used, there might be a battery charging limit voltage that is recommended for the battery. This parameter ensures that the charge controller does not exceed the default or assigned rated charging limit voltage. This is usually put into play to optimize and extend the life of the battery. Relatively speaking, the higher the charging voltage then there is a correlation for reduced battery efficiency. (Likewise the lower the discharge voltage affects battery efficiency.

Over-voltage Reconnect

In the event a charge controller experiences an over-voltage condition set by the previous two parameters, then this reconnecting parameter is put into play to direct the controller when it can connect and safely charge again. Typically over-voltage reconnection is achieved when time has passed (ex. The sun setting), or when the over-voltage condition is remedied ultimately reducing the voltage to a user defined charging voltage.

Equalization Voltage

equalization voltage is a corrective over-charge of the battery. The user should consult their battery manufacturer regarding specific battery equalization capacity. This parameter sets the equalization voltage to set the battery at when it reaches the equalization state.

Boost Voltage

users should check with their battery manufacturer for proper charging parameters. In this stage, users set the boost voltage where the battery will reach a voltage level and remain there until the battery undergoes an absorption stage

Float Voltage

once the charge controller recognizes the set float voltage, it will commence floating. The battery is supposed to be fully charged in his state, and the charge current is reduced to maintain battery stability levels.

Boost Return Voltage

if at any point, the battery voltage levels registers to be below the boost return voltage for an extended period amount of time, then the charge controller will commence the boost stage once again.

25

Low Voltage Reconnect

this parameter allows loads connected to the system will be able to operate (not fully) again.

Under-voltage Recover

deals with the loads connected to the system. When batteries are determined to be low due to them approaching low voltage disconnect, then the loads will be shut off to give the batteries time to recover. This parameter sets the controller to shut off the loads until it can reach the low voltage reconnect stage.

Under-voltage Warning

this parameter deals with the batteries themselves approaching the under-voltage recovery state. The user should minimize loads before the charge controller approaches a level where it will do this automatically to protect the battery from discharging

Low-voltage disconnect

prevents over-discharge of the batteries by automatically disconnecting any loads. This extends battery life and is the precedent to being in an under voltage state, recovering from the under voltage state, and finally reconnecting to normal operational state.

Discharging limit Voltage

the user can set the “discharge” limit of a battery if they choose to better protect the battery and expand its life. The following chart serves as an example of voltages and their state of charges. Note that the higher the charging limit and lower the discharge limit correlates with overall low battery life.

State of Charge 12 V Battery Volts per Cell

100%

90%

80%

70%

12.7

12.5

12.42

12.32

2.12

2.08

2.07

2.05

60%

50%

40%

30%

20%

10%

0

12.20

12.06

11.9

11.75

11.58

11.31

10.5

2.03

2.01

1.98

1.96

1.93

1.89

1.75

Threshold Voltage Parameters

The following chart demonstrates the parameters when using the Timer under load settings.

Description

Default

Parameter

5V; x2/24V

Day Time Threshold Voltage (DTTV)

Night Time Threshold Voltage (NTTV)

Max

Min

Default

Max

Min

10V; x2/24V

1V; x2/24V

6V; x2/24V

10V; x2/24V

1V; x2/24V

26

10A VS1024BN

Dimensions

27

20A VS2024BN

28

30A VS3024BN

29

Wiring Diagrams

3

2

1

4

2

1. Solar Panel 2. Fuse

4. Charge Controller (10A/20A/30A), 5. Tray Cable

100W Wiring Diagram

12V Battery Bank

5

3. Adapter Kit

6. Battery Bank (12V)

30

6

3

2

1. Solar Panels

4. Charge Controller (20A/30A),

1

4

2

2. Fuse

5. Tray Cable

200W Wiring Diagram

—Series

12V Battery Bank

5

3. Adapter Kit

6. Battery Bank (12V)

6

31

200W Wiring Diagram

—Parallel

12V Battery Bank

2

4

3

5

1

3

6

1. Solar Panels 2. MC4 Branch Connectors

5. Charge Controller (20A/30A) 6. Tray Cable

3. Fuse 4. Adapter Kit

7. Battery Bank (12V)

7

32

1

2

2

4

3

300W Wiring Diagram

—Parallel

12V Battery Bank

5

3

6

1. Solar Panels 2. MC4 Branch Connectors

5. Charge Controller (30A) 6. Tray Cable

3. Fuse 4. Adapter Kit

7. Battery Bank (12V)

33

7

1

2

4

3

2

1. Solar Panels 2. MC4 Branch Connector

5. Charge Controller (30A), 6. Tray Cable

5

3

2

400W Wiring Diagram

—Parallel

12V Battery Bank

6

3. Fuse 4. Adapter Kit

7. Battery Bank (12V)

7

34

Updated: Sep 4, 2015

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