Visionary Lighting & Energyvleindia.com/admin/downloads/1404643335.pdf1 Introduction to Solar-LED...

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FREEDOM LIGHTING SYSTEM (FLS)

Visionary Lighting & Energy

Operation, Instruction & Maintenance Manual for MNRE Solar-LED Home Lighting Model’s I, II, III & IV

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Index

S.No Title Page No

1 Introduction to Solar-LED Lighting 3

2 MNRE (Models: I, II, III & IV) Solar Home Lighting system 4

3 Illumination Performance of MNRE FLS’s

9

4 List of Components Supplied with the FLS

9

5 Warning: System Installation & Operating Conditions

12

6 Connection Diagrams for MNRE Solar-LED Systems

13

7 Solar Panel Mounting

14

8 Solar Panel to Control Center Connection

15

9 Connection of Lights and Fan to Control Center, Indicators and Switches

15

10 Control Centre Features and Functional Description 16

11 Freedom Light (FL) Description & Performance 16

12 Maintenance of the FLS

17

13 Technical Specifications for FLS

18

14 Trouble Shooting for FLS 19

15 DO’s and DON’Ts 20

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1. Introduction to Solar-LED Lighting

All lighting systems typically require: a source of electrical energy, somewhere to store the energy, and a means of converting the electrical energy to light. The classic Solar-LED lighting system consists of four basic components as in Figure 1 below: Solar Panel – converts the suns light (photons) into electrical energy (electrons), and the larger the panel the greater the electrical energy and power it can produce. Battery – stores the electrical energy from the solar panel and it must be sized relative to the size of the panel. Control Center – houses the battery, charge controller, electronics, LED indicators, input/output connectors and power switches. LED Lamp (Load) – uses LEDs to convert the energy from the battery (electrons) back into bright, useful and very reliable light (photons).

Fig 1: Solar PV Lighting system

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2. MNRE (Models: I, II, III & IV) Solar Home Lighting system

The VLE MNRE Freedom Light Systems (FLS) consist of a family of four Solar-LED lighting systems described briefly as follows:

Model-I : One - White LED luminaire (250 lumen net output), 6W solar panel, 12V- 7Ah Sealed Lead Acid Battery (SLAB)

Technical Specifications of Model 1: LED Lamp / Luminare : 1 number

> 3 Watt Lamp made of 3 Cree Q5 LED’s > Electronics efficiency > 92% at 12V i/p > Metal body helps as heat sink > Lumens : 250 net output > More than 15 Lux at a diameter of 2.5 mt > Reverse Polarity Protection

Solar Panel : 1 number

> Maximum power : 6 Wp > Open circuit voltage : 21.6 Volt > Short Circuit Current : .35 Ampere

Central Control Unit: 1 number

> Battery : 12V, 7Ah battery > Low Voltage Cutoff : 12.10 volt > Over Charging Cutoff : 14.4 Volt @ 27 Degree Centigrade

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Model- II Two - White LED luminaire (250 lumen net output), 12W solar panel, 12V- 12Ah Sealed Lead Acid Battery (SLAB)

Technical Specifications of Model 2: LED Lamp / Luminare : 2 Numbers


Solar Panel : 1 number

> Maximum power : 12 Wp > Open circuit voltage : 21.00 Volt > Short Circuit Current : .79 Ampere

Central Control Unit: 1 number


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Model- III Two - White LED luminaire (250 lumen ) net output and one 6.5W DC fan, 24W solar panel, 12V- 20Ah Sealed Lead Acid Battery (SLAB)

Technical Specifications of Model 3: LED Lamp / Luminare : 2 Numbers


DC Fan: 1 Number

> 12Volt DC fan. Power: 6.5 Watt Solar Panel : 1 Number

> Maximum power : 24 Wp > Open circuit voltage : 21.40 Volt > Short Circuit Current : 1.63 Ampere

Central Control Unit: 1 Number


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Model- IV Four - White LED luminaire (250 lumen net output), 24W solar panel, 12V- 20Ah Sealed Lead Acid Battery (SLAB)

Technical Specifications of Model 4: LED Lamp / Luminare :


Solar Panel :

> Maximum power : 24 Wp > Open circuit voltage : 21.4 Volt > Short Circuit Current : 1.63 Ampere

Central Control Unit:


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The FLS’s are straightforward to install and operate, and are essentially plug and play.

The Control Center contains the Charge Controller, Switches and Connectors for lamps, Low Battery and Charging LED indicator lights, Master On-OFF switches, system Fuse, and Solar Panel and DC Adaptor input, and as it can accommodate any of the three battery sizes it allows the client to upgrade very easily when a larger system is desired.

The Sealed Lead Acid Battery will continue to function for many years because of the low Depth of Discharge that has been designed into the system, thus making life so much easier for the clients and reducing their operating costs.

It may be noted that all four of the MNRE FLS’s have been designed to allow the client to charge a mobile phone once a day if required.

Fig: 2 Various Components of VLE’s Solar LED Home Lighting System

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3. Illumination Performance of MNRE FLS’s

Model-I Average Energy Available per 24 hour period = 21 WHr => 7 Hours of Light (1 lamp)

Model- II

Average Energy Available per 24 hour period = 42 WHr => 7 Hours of Light (2 lamps) Model- III

Average Energy Available per 24 hour period = 84 WHr => 9 Hours of Light (2 lamps) + 4 Hours of Fan

Model- IV

Average Energy Available per 24 hour period = 84 WHr => 7 Hours of Light (4 lamps)

4. List of Components Supplied with the FLS

MNRE Model 1:

S.NO

Components

Quantity

1.

Control Center (CC) containing battery and

electronics

1

2.

12 V, 7 Ah SLAB

1

3.

6 W Solar Panel (SP)

1

4.

3 W Freedom Light (FL)

1

5.

Lamp Cable – 5 meter

1

6.

Solar Panel to Control Center Cable – 6 meter

1

7.

Solar Panel Mounting Bracket

1

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MNRE Model 2:

S.No

Components

Quantity

1.


electronics

1

2.

12 V, 12 Ah SLAB

1

3.


1

4.


2

5.


2

6.


1

7.


1

MNRE Model 3:

S.No

Components

Quantity

1.


electronics

1

2.

12 V, 20 Ah SLAB

1

3.


1

4.


2

5.

12 V, 6.5 W Fan

1

6.


2

7.


1

8.


1

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MNRE Model 4:

S.No

Components

Quantity

1.


electronics

1

2.

12 V, 20 Ah SLAB

1

3.


1

4.


4

5.


2

6.


1

7.


1

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5. Warning: System Installation & Operating Conditions

Only trained and qualified personnel should be permitted to install or repair this equipment. Read the installation instructions before you connect the system to its power source. Before working on the system, ensure that all switches are in the OFF position and unplug all input and output cables. The FLS is for indoor application only. Do not install the lamps or the Control Center outdoors. Before connecting the battery to the Control Center check its polarity; most batteries indicate with a (+) sign the positive terminal, and with a (-) sign the negative terminal. Connecting the solar panel or Control Center to a battery with the wrong polarity may result in severe damage to the entire system. A safe temperature range to operate most batteries, as recommended by manufacturers, is 0° to 40°C (0° to 104° F). Avoid exposing batteries to temperatures below -15°C (5°F) or above 50 °C (122°F) as this may damage the battery. Ultimate disposal of this product should be handled according to all national laws and regulations.

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6. Connection Diagrams for MNRE Solar-LED Systems

The CORRECT connection between the Battery Terminals and Control Center input is to be established as shown in Fig 3-1

Fig: 3 -1

Fig 3-2 shows a WRONG connection between the Battery terminals and the Control Center

Fig: 3 -2

CAUTION:

Always connect the RED (+) wire of the Control Center to the (+) terminal of the battery and BLACK (-) wire of the Control Center to the (-) terminal of the battery. The wrong connection may result in severe damage to the battery and the Control Center.

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7. Solar Panel Mounting

Fig: 4

In the NORTHERN hemisphere, e.g. a village in India at 17º N latitude, the solar panel must be installed facing due SOUTH and inclined 17º from the horizontal. In the SOUTHERN hemisphere, e.g. a village in South Africa at 26º S latitude, the solar panel must be installed facing due NORTH and inclined 26º from the horizontal.

CAUTION:

If the Solar Panel is not mounted in the correct manner then it will not charge the battery properly.

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8. Solar Panel to Control Center Connection

Connect the Solar Panel to the solar terminal of the Control Center as shown in Fig 5-1

Fig: 5-1

9. Connection of Lights and Fan to Control Center, Indicators and Switches:

Indicators, Switches, Sockets and Connectors of the Freedom Lights to the Control Center as shown in Fig 5-2.

Figure 5-2

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10. Control Centre Features and Functional Description > Simple and Low cost non-microcontroller based design yet sophisticated. > Easily serviceable components. > Built-in Temperature compensation to handle all seasons @ 4.5 mV per Degree Centigrade. > Unique charging technique uses both Continuous under float point and PWM at float point. > Can be used with Cell phone chargers, Radio equipment and many more. > Single Design suits a wide range of Batteries and Solar panels. > Solid state cut off circuitry for LOW and OVER voltage protection. > Load Cut-off Voltage: 11.9 Volt; Solar panel Cut off voltage: 14.4 Volt @ 27 Deg Temp. > Reverse Battery and Load polarity protection, over charging and discharging protection using a simple Electric fuse. > Load ON and OFF control through soft push button switches and ON/OFF switches. > Can connect up to 4 Loads at a time and control each of the Loads individually. > Solar Charging Indicator: RED LED for continuous charging and GREEN LED for float Charging. > Low Battery Indication with the help of a bright RED LED indicator. > Onboard Blocking diode for reverse current protection in to Solar panel during night. > Current Draw in Power ON condition by electronics : 11 milli ampere. > Current Draw in Power OFF condition by electronics : < 1 milli ampere. > Voltage drop of .5 Volt while charging @ 2 Ampere due to Reverse protection diode. 11. Freedom Light (FL) Description & Performance The FL uses genuine Cree XR-E White LEDs thus its operational life is well in excess of 50,000 hours, and with a power input of 3 Watts it has a net light output over 250 Lumens. Each FL uses three XR-E’s positioned in a triangular format and operating at relatively low current levels. This ensures that they are operating in their highest efficacy range and providing a much lower level of glare compared to a single point light source of equivalent lumen output. In accordance with MNRE certification specifications, with the FL at a height of 2.5m, the Lux level at the perimeter of a 2.5m diameter circle is in excess of 15 Lux, and the variation in Lux level throughout the 2.5m diameter is very small, thus providing a very even and pleasing beam pattern with no ‘dark bands’. The design of the FL dome lens also helps to reduce the glare. The FL is protected against reverse voltage polarity application. The CC is designed to accept either solar or AC-DC adapter inputs, and the electronics will ensure that the battery is not over-charged or over-discharged, and it is reverse polarity protected. The four outputs of the CC are designed to handle any permutation of FL’s and fan, and the LED State of Charge indicator will let the client know when the charge is running low.

Please note: Mobile phones whilst charging, generally take approximately the same current as does a single 3 W FL.

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12. Maintenance of the FLS The FLS has been designed to operate for many years without the need to replace components. Depending upon local environmental conditions occasional maintenance will consist of the following:

1. Checking the solar panel and if necessary remove dust or dirt as this prevents some of the sunlight from reaching the solar cells, and thus reduces the electrical energy output.

2. Checking that the solar panel is still firmly attached to the roof, facing in the proper direction and at the correct inclination angle.

3. Checking that the cable from the solar panel to the CC is still attached properly and has not been damaged in any manner.

4. Checking that the Charging indicator LED is lit on a daily basis, thereby ensuring that the battery is consistently being fully charged.

5. Checking that the Low Battery indicator LED is lit after the system has been used for many hours.

6. Checking that all the input and output connectors on the CC are fully in place. 7. Checking that all four power output switches on the CC are fully operational. 8. Checking that there is no dust, dirt or soot on the FL lens as this reduces the amount of light. 9. Checking that the CC is charging mobile phones properly. 10. If the CC and FL is temporarily taken from the home to the outdoors it is very important

that on returning that all input and output connections be properly checked, not only for the electrical connection, but also to ensure that dirt and moisture have not been introduced into them.

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13. Technical Specifications for FLS

S. No Components involved Technical specification 1. Battery 12V, [7, 12 & 20] AH sealed lead acid battery 2. Solar Panel

a) Maximum Power Pmax 6 Wp – 12 Wp – 24 Wp b) Voltage at Maximum Power Vmp 17.0 V - 17.0 V - 17.4 V c) Current at Maximum Power Imp 0.36 A - 0.71 A - 1.38 A d) Open Circuit Voltage Voc 20.0 V - 21.0 V - 21.4 V e) Short Circuit Current Isc 0.39 A - 0.79 A - 1.6 A f) Tolerance +/- 5% g) Maximum System voltage 1000 V 3. Freedom Light

a) Incorporates three Cree XR-E White LEDs in series b) Lumen output (net) c) Driver Circuit Efficiency

3.0 W at 250 mA 300 lumen 92%

d) Average Lamp-Hours of light per 24 hour period: i) 6 W panel – 7 lamp-hours ii) 12 W panel – 14 lamp-hours iii) 24 W panel – 28 lamp-hours

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14. Trouble Shooting for FLS

S.NO Problem Possible cause Solution 1. FL does not light when CC

switch in the ON position No power from CC FL is broken

• CC switch or output connector may be broken – so test the light in all four output connectors

• Check that there is the proper voltage at the CC output connectors

• If the system is brand new - Check if the CC input has been disconnected from the Battery output.

• If the system is brand new - Check if the Control Center input is cross connected to the Battery output, and if so then rectify it immediately to avoid hazards.

• Battery may be fully discharged

2. AC Charging - Charging Indicator LED is not lit

• AC Adapter terminal issue

• AC Adapter connection issue

• Check if Adapter connectors are properly plugged into the CC input and also to the AC.

• Check that the Adapter output is present

• Check if the AC power supply is available to the Adapter.

• Check if adapter wires to the CC are broken.

3. Solar Charging – Charging Indicator LED is not lit

• Solar terminal issue • Solar Panel issue

• Ensure that the connector on the cable from the Solar panel is properly plugged into the CC Solar input.

• Check whether the connecting cable from the solar panel to the CC is producing the correct open circuit voltage and short circuit current.

• Check that there is nothing blocking the sun from reaching the Solar panel

• Check that the Solar panel is operating properly – this may require opening the terminal box.

• There will be no Solar panel output when there is no sun available

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15. DO’s and DON’Ts

DO’s: Do mount the solar panel in a secure and safe manner, especially if high winds are likely Do keep solar panel reasonably clean Do mount the CC and FL’s in safe places (generally away from children) Do keep CC and FL’s dry and indoors Do keep CC and FL’s away from smoke and flames DON’Ts: Do not drop the solar panel, the CC or the FL’s Do not let children throw stones at solar panel Do not cover the solar panel as the sun needs to reach it Do not leave the FL’s on all night, unless absolutely necessary Do not charge multiple mobile phones per day, unless absolutely necessary Do not plug in non-VLE products as they might damage the system

4. Mobile phone is not charging • No power

• Charger issue

• Check that the CC Switch is in the ON position.

• Check if power supply is available from all the CC outlets.

• Ensure the charger is in good working condition.

• Check if the connecting wire between Control Center and mobile phone is damaged.

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Visionary Lighting and Energy India (P) Ltd (VLE)

C/o Blaze Automation Services (P) Ltd

2nd Floor, “Ravi Chambers”-3-351,

Road No: 1, Banjara Hills,

Nagarjuna Circle, Hyderabad, India.

Land Mark: Vodafone Store Building, (beside Centro)

Tel:: +91 40 6457 2220 , +91 40 6596 5140.

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