Renogy PWM30LCD Manual de usuario

PWM30LCD

RENOGY 30A Pulse Width Modulation Solar Charge

Controller with LCD Manual

2775 E. Philadelphia St., Ontario CA, 91761

1-800-330-8678

Contents

1. Product Information 2

2. Installation 3

3. Operation 4

3.1 Explanation of LCD Graphic Symbols 4

3.2 Explanation of Buttons 4

3.3 Parameter Review and Setting 5

3.3.1 Battery Voltage 5

3.3.2 Turning the Load ON/OFF 5

3.3.3 Ambient Temperature 5

3.3.4 Solar Input Current 6

3.3.5 Load Current 6

3.3.6 Generated Amp-hours 6

3.3.7 Consumed Amp-hours 6

3.3.8 Ceasing Charging Voltage 7

3.3.9 Low Voltage Protection Function 7

3.3.10 Recovering Voltage 7

3.3.11 Load Work Mode 8

4. Protection Features and Troubleshooting 9

4.1 Low Voltage Protection 9

4.2 Overloading Protection 9

4.3 Short-circuit Protection 9

4.4 Solar Panels Not Detected 10

4.5 Starting Current Greater than the Rated Current 10

5. Warranty 11

6. Technical Specifications 12

6.1 Electrical Specifications 12

6.2 Mechanical Specifications 12

1. Product Information

The PWM30LCD is an intelligent and multifunctional solar charge controller. The

customized LCD display makes it easy to operate. All the controlling parameters

can be adjusted to the user’s needs. This controller has the following features:

Visual LCD with graphic symbols

Brief key operation

Auto detection voltage (12V/24V)

Intelligent PWM Charging Mode

Temperature compensation

Adjustable charging and discharging parameters

Settable working modes of loads

Accumulative function of charging and discharging Amp-hours

Battery discharging protection

Low Voltage Disconnect

Overloading and short-circuit protection

Battery reversed protection

Delayed auto restart after overloading protection

The controller adopts the advanced Pulse Width Modulation (PWM) charging

technology. With range of 0-100%, it can charge the battery quickly and safely

under any condition of solar photovoltaic system.

When charging, it uses automatic duty cycle conversion, creating pulses of

current to charge the battery. Intermissions make the oxygen and hydrogen

generated by chemical reactions combine again and absorbed. It can naturally

eliminate concentration polarization and ohm polarization and reduce the internal

pressure of the battery, thus making the battery absorb more power. Pulse

current charging mode makes the battery have more time to react, which reduces

the gassing volume and makes the battery improve the acceptance rate of the

charging current.

2. Installation

We suggest you choose the appropriate cables to ensure the current density < 4

A/mm2. This is good for reducing voltage drop between the solar array and the

charge controller. Recommendation: For 30 Amps, use a 10mm2cable.

1. Please avoid installing and using the controller under the following

conditions: wet or dusty locations, and in places with flammable and

explosive gases.

2. Install the controller on a vertical surface. In order to make the controller

have good thermal dissipation, please allow 10 cm (4 in) of free space

above and below the controller.

3. As shown in Fig. 1.1, do the connections in the following order:

1st Connect the DC loads

2nd Connect the battery or battery bank

3rd Connect the solar panel(s)

4. Plug the external thermal sensor into the interface as shown in Fig. 1.1.

Do not lose this sensor; it is required for the proper operation of the

controller.

Figure 1.1 Charge Controller Diagram

Caution: To avoid the accident, please disconnect the system in reverse order as the installation.

That is, first remove the panels, then the battery, and finally your loads.

Attention: Accidentally connecting the battery with reverse polarity will not damage the controller,

but will cause safety risk on your loads.

Solar Panels

DC Load

Temperature Sensor

Interface

Battery

3. Operation

3.1. Explanation of LCD Graphic Symbols

Icon

Description

Icon

Description

Load output is OFF

Battery is not receiving charge

Load output is ON

Charging battery at full speed

Supplying current to loads

Controller is at normal

operation

Load connected

Controller is at abnormal

operation

Solar array connected

Battery Level

Load light control

Battery Connected

Timing control for loads

Float Charging

Table 3-1 LCD graphic symbols description

3.2. Explanation of Buttons

Circular toggle button. This button is used to navigate all interface

screens in a circular order as shown as Fig. 3.1.

Parameter adjusting (+) button. This button is used to increase the

value of a parameter (if adjustable).

Parameter adjusting (−) button. This button is used to decrease the

value of a parameter (if adjustable). Also, at the main interface, this

button can turn on or turn off the output load.

Figure 3.1 Order of the all the parameter screens

Battery Voltage

(Main interface)

Ambient

Temperature

Solar Input

Current

Load Current

Generated

Amp-hours

Load Working

State

Ceasing Charging

Voltage

Recovery

Voltage

Low Voltage

Protection

Consumed

Amp-hours

3.3. Parameter Review and Setting

Once the charge controller is powered up, it will display the battery voltage. This

screen is the main interface of the controller. Press to go through the all of the

charge controller’s screens. Screens with parameters that are adjustable e.g.

“Low Voltage Protection” can be adjusted by pressing for more than 5

seconds. Once the number on the screen starts to flicker, it can now be adjusted

using and buttons. After the adjustment is complete, press again for

more than 5 seconds to save the new parameter.

3.3.1 Battery Voltage

The main screen shows the battery voltage and

the battery level. It also, shows the charging and

discharging state. After using the navigation

button, and changing to a different screen, the

controller will jump back automatically to the

main screen after 15 seconds.

3.3.2 Turning the Load ON/OFF

At the main screen, press to turn on or off

the load output. Please note that this button

does not have this functionality at any other

screens.

3.3.3 Ambient Temperature

The temperature sensor is required for

temperature compensation when the battery

ceases charging. This screen displays the

surrounding ambient temperature of the charge

controller.

3.3.4 Solar Input Current

This screen will display the total amperage

being produced by the solar panel(s). This

number will decrease when approaching float-

charging mode.

3.3.5 Load Current

When the load is ON and a device is connected

to its terminals, the screen will show the amount

of current is drawing from the battery.

3.3.6 Generated Amp-hours

In this screen, the controller will display the

generated Amp-hours from the solar panels

since start up. Pressing for more than 5

seconds will clear the generated A-h.

Note: This number will also reset if you turn the

charge controller off.

3.3.7 Consumed Amp-hours

In this screen, the controller will display the total

Amp-hours consumed from the battery since

start up. Pressing for more than 5 seconds

will clear the consumed A-h.

Note: This number will also reset if you turn the

charge controller off.

3.3.8 Ceasing Charging Voltage

The picture on the right shows the screen with

the maximum allowed battery voltage. When the

battery voltage reaches up to this voltage, the

controller will disconnect the charging state to

prevent the battery from overcharging. After the

battery voltage drops, the controller will

reconnect the charging state. This parameter

can be adjusted by pressing for more than 5

seconds. Once the number on the screen starts

to flicker, it can now be adjusted using and

buttons. After the adjustment is complete,

press again for more than 5 seconds to save

the new parameter.

3.3.9 Low Voltage Protection Function

The low voltage protection function disconnects

any power to the load output if the voltage falls

below a specific voltage. This function helps

prevent the battery from over-discharging. This

parameter can be adjusted by pressing for

more than 5 seconds. Once the number on the

screen starts to flicker, it can now be adjusted

using and buttons. After the adjustment

is complete, press again for more than 5

seconds to save the new parameter.

3.3.10 Recovering Voltage

After the controller enters into low voltage

protection state, it will remain on this state until

the batter voltage is greater than the recovering

voltage specified on this screen. Once this

happens, the controller will reconnect the load

output power automatically. This parameter can

be adjusted by pressing for more than 5

seconds. Once the number on the screen starts

to flicker, it can now be adjusted using and

buttons. After the adjustment is complete,

press again for more than 5 seconds to save

the new parameter.

3.3.11 Load Work Mode

In this screen, the load output behavior is as

follows:

24h –Indicates normal mode. Loads are

under the condition of supplying power

without interruption.

1h-23h –Indicates timed light control.

Load terminals start to supply power after

sundown for the amount of hours

indicated on the screen (1 to 23 hours).

0h –Indicates Dusk-to-Dawn. Load is on

all night long.

This parameter can be adjusted by pressing

for more than 5 seconds. Once the number on

the screen starts to flicker, it can now be

adjusted using and buttons. After the

adjustment is complete, press again for more

than 5 seconds to save the new parameter.

4. Protection Features and

Troubleshooting

4.1 Low Voltage Protection

When the battery voltage is below than the

protection voltage, the controller will enter in low

voltage protection state, which disconnects the

load output. Use the solar panels or alternate

charger to charge thebattery. When battery

voltage recovers above the specified voltage on

the “Recovering Voltage” screen, the controller

will recover to supply power for load terminals

and operate normal once again.

4.2 Overloading Protection

When the light bulb on the screen flickers with

partial lines (as shown on the picture on the

right), it means that the current load overloaded

to 1.2 times of the rated current for 3 seconds.

The controller is now in overloading state with

no output load. Removing some of loads will

reduce the current draw, and the controller will

continue supply power to the loads

automatically within seconds. If power still not

recovered, press to recover the power

manually.

4.3 Short-circuit Protection

When the light bulb on the screen flickers with

full lines (as shown on the picture on the right),

it means that there is a short-circuit at the load

terminals. The controller is now in short-circuit

protection state with no output load. Check for

damaged loads and make sure cables are not

shorting out. After checking all connections,

press to recover the power output.

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