Morningstar PROSTAR-12 Manuale utente

PHOTOVOLTAIC SYSTEM CONTROLLERS

PERATOR

’

ANUAL

RORO

TARTAR

MODEL RATINGS

TAR

-12 P

TAR

-20 P

TAR

-30

Rated PV current 12A 20A 30A

Rated Load current 8A 16A 30A

System voltage: 12 and 24 volts, auto selected

ProStar models • Standard

included in this • With LCD meter

manual:

CONTENTS

1.0 G

ENERAL

NFORMATION

.................................................... 2

2.0 Q

UICK

TART

NSTRUCTIONS

............................................ 3

3.0 I

NDICATORS

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

3.1 LED Indicators .................................................. 4

3.2 Digital Meter & Disconnect.............................. 5

4.0 I

NSTALLATION

NSTRUCTIONS

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

4.1 Polarity Protection ............................................ 6

4.2 Installation Procedure ...................................... 7

5.0 O

PERATION

........................................................................ 10

5.1 Controller Operation ........................................ 10

5.2 Controller Functions ........................................ 10

5.3 Inspection and Maintenance ............................ 11

5.4 Troubleshooting................................................ 12

6.0 S

PECIFICATIONS

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

1.0 GENERAL INFORMATION

Thank you for selecting the ProStar PV controller. The

ProStar is a highly sophisticated controller using advanced

technology and microprocessor control. The battery charg-

ing process has been optimized for longer battery life and

improved system performance.

Many functions of the ProStar are unique. Although the

ProStar is very simple to use, please take the time to read

this operator’s manual and become familiar with the con-

troller. This will help you to make full use of the many

advantages the ProStar can provide to your PV system.

PRECAUTIONS

“Always Put Safety First”

• Always be very careful when working with batteries. Batteries

can produce explosive hydrogen gas. A short-circuit can pull

thousands of amps from the battery.

•Even though the system is only 12 or 24 volts, both the PV

array and battery can contain lethal amounts of electrical

power.

• Do not splash water on the controller, do not allow water to

enter the ventilation slots.

• Do not touch the heatsink. Under certain operating condi-

tions, the heatsink can become hot.

• Always install the controller in a vertical position. Ensure

adequate space for ventilation, and never block the ventila-

tion slots.

• Do not short-circuit the PV array while connected to the

controller. This will damage the controller.

• Do not exceed the current ratings of the controller.

2.0 QUICK START INSTRUCTIONS

This section provides a brief overview of how to get started

using the ProStar controller. However, please review the

entire manual to ensure best performance and years of

trouble-free service.

1. Mount the ProStar to a vertical surface. Allow space above

and below the controller for air flow. The heatsink MUST be

in a vertical (up & down) position.

2. Make sure the PV and load currents will not exceed the

ratings of the ProStar model being installed.

3. Connect the

BATTERY

first. Observe that all LED’s flash in

sequence one time.

4. Connect battery

SENSE

leads (if utilized). This is recom-

mended if the controller is placed more than 2 to 3 meters

from the battery.

5. Connect the

(solar array). With sunlight, the green

CHARGING

LED will light in 2 minutes.

6. Connect the

LOAD

. If the LED indicators begin to flash, the

load is shorted. Refer to the detailed installation instructions.

7. The

BATTERY TYPE

at start-up is sealed (LED on). If the PV

system battery is a flooded type, use a piece of wire to touch

the

SELECT PIN

to the battery minus terminal to change to

flooded (LED goes off). This must be reset every time the

battery is disconnected.

8. The ProStar will automatically select for a 12 or 24 volt sys-

tem. If this is a 24 volt system, first check to confirm that the

battery is above 17 volts, and boost-charge the battery if

under 17 volts.

9. Observe the LED indicators. After a few minutes to clear

delays and resets, the LED’s should operate per system con-

ditions as described in the following chart (section 3.1).

10. For effective surge protection, it is recommended that the

negative system conductor be properly grounded.

3.0 INDICATORS

3.1 LED I

NDICATORS

The ProStar utilizes 5 LED (light emitting diode) indicators

to provide controller and system status information. These

are described in the following table.

NDICATOR

OLOR

ESCRIPTION

BATTERY TYPE

Green ON: Sealed battery type

OFF: Flooded battery type

STATUS

Green ON: PV array power available

and charging battery

OFF: PV array power is off

BATTERY CHARGE

Green ON: Battery near full charge

BATTERY CHARGE

Yellow ON: Battery at middle capacity

(about 35% to 80% SOC)

NOTE: does not indicate

a problem

BATTERY CHARGE

Red FLASH: Battery at low charge,

warning

ON: Load has been disconnected

All LED’s

SEQUENTIAL FLASH:

Load is short-circuited

High temperature shutdown

High voltage disconnect

Initial battery connection (startup)

(flashes one cycle only)

3.2 D

IGITAL

ETER

& M

ANUAL

ISCONNECT

If your model is supplied with the LCD meter, the controller

will include a precision 3-digit meter that displays battery

voltage, PV array current and load current. The meter will

automatically sequence between these 3 parameters. The

3 small green status LED’s will indicate which parameter is

being displayed.

The LCD meter will operate from -30°C to +85°C. The

values displayed are accurate to within a few percent.

However, please note that if the

BATTERY SENSE

is not

connected, the voltage displayed will be reduced by the

voltage drops in the battery wires.

The red

DISCONNECT

button will provide an immediate

disconnect of both the PV array and load when pushed

(the button’s red LED turns on). To return the controller to

normal operation, push the button a second time. Note

that restarting the controller with the button will cause the

controller to go through the start-up sequence with the

normal delays and LED indications.

4.0 INSTALLATION INSTRUCTIONS

4.1 P

OLARITY

ROTECTION

(

AND

LED I

NDICATIONS

)

CAUTION:Although the ProStar is fully protected from

reversed polarity, the system operator and other

equipment may be at risk when polarities are

reversed. Carefully check each connection and

observe the LED’s to make sure polarity is correct.

CONNECTION POLARITY RESULT AND LED INDICATION

Battery Correct All 5 LED’s will sequence one time.

BATTERY TYPE

indicator will remain on

(default is sealed). The green

BATTERY

CHARGE

indicator will light within 15 sec-

onds, and will then cycle to the correct state.

Battery Reversed No LED’s will light. No damage will occur.

Sense Correct No additional indications.

Sense Reversed If the battery has been connected cor-

rectly, there will be sparking at the termi-

nals. If the negative sense lead is con-

nected first, no damage will occur (small

possibility of damage if positive connect-

ed first). There will be no indications.

PV Array Correct LED’s will light only if the battery has

been connected. During daytime with

battery present, the

CHARGING

indica-

tor will light after a 2 minute delay.

PV Array Reversed No damage will occur. The

CHARGING

indicator will not light after the 2 minute

delay.

Load N/A If a load short-circuit exists, load will

instantly disconnect to protect the

controller. LED’s will then sequence

to indicate a short.

4.2 I

NSTALLATION

ROCEDURE

GENERAL INSTALLATION NOTES:

•The ProStar prevents reverse current leakage at night, so

a blocking diode is not required in the system.

• The ProStar is designed to regulate ONLY PV power. Do

NOT connect to any other type of power generator.

• The ProStar automatically selects 12 or 24 volt setpoints at

battery connection. Do not connect a battery larger than 24

vdc (12 cells) or the controller will be damaged.

• The connector terminals will accept a maximum wire size

of AWG #6 (solid/multistrand) or AWG #8 (fine strand) or a

maximum wire diameter of 5.0 mm. Use a flathead insulated

screwdriver (up to 5 mm).

NOTE:Carefully observe the LED indications at each con-

nection. Per the chart above, the LED’s will indicate

proper polarity and a good connection.

NOTE:Connections may be made in any order. However,

the BATTERY must be connected first for the LED

indicators to operate. The SENSE input will not

power the LED’s.

INSTALLATION STEPS:

1. Inspect the controller for shipping damage. Mount the

ProStar to a vertical surface (4 stainless steel #8 self-tapping

screws are included). Do not install directly over an easily

combustible surface since the heatsink may get hot under

certain operating conditions.

NOTE:Heatsink must be in a vertical (up and down) position.

Allow a minimum of 15 cm (6 inches) space above and below

the controller for air flow. Install in an area protected from

direct rain and extreme temperatures.

If the controller is installed in an enclosure, some ventilation

is recommended. If installed in a sealed enclosure, under

extreme conditions the ProStar may, at times, reach 70ºC

and disconnect the PV array briefly.

2. Confirm that the PV array and loads will not exceed the cur-

rent ratings of the ProStar model being installed (see chart

on front cover).

Multiple ProStar units can be paralleled at the system battery,

but be careful that no PV sub-array exceeds a controller’s

individual current rating.

BATTERY (+ and -)

Before connecting the battery, check the

open-circuit voltage of the system battery. It must be at least

8 volts for the controller to operate. If your PV system is 24

volts, the battery MUST be over 17 volts, or the controller

will regulate at the 12 volt setpoints. Any battery starting at

less than 11 (or 22) volts should be fully charged before con-

nection to a PV system, or battery life will be significantly

reduced.

NOTE: The battery should be connected first. This will

activate the controller self-protection features,

and will power the LED’s to guide installation

and start-up.

Connect the battery and observe that all 5 LED’s flash in se-

quence one time. If the LED indicators do not sequence or

the

BATTERY TYPE

LED does not light, check the battery

polarity.

The green, yellow or red

BATTERY CHARGE

LED will light

depending on the battery charge state.

SENSE (+ and -)

Battery sense leads are recommended if the

controller is located more than 2 or 3 meters from the bat-

tery. This will avoid voltage drops and improve the control

accuracy. However, if the sense leads are not connected, the

controller will default to

BATTERY

connections for control.

A smaller wire size can be used for sense (draws less than 1

mA current). Note that the wire entry slots into the case for

SENSE

are smaller than the other system power terminals to

prevent mixing the

BATTERY

and

SENSE

connections.

PV (+ and -)

Use these terminals to connect the solar array.

First confirm that the PV modules are wired for the same

voltage as the battery (either 12 or 24 volts).

Use caution, since the PV array will generate power whenever

in sunlight. Also, be careful not to short-circuit the PV array

while connected to the controller, since this will damage the

controller.

There is a 2 minute delay after connection of the PV array

before the controller begins charging. Check that the

CHARGING

indicator comes on after 2 minutes to confirm

that the PV array has been properly connected.

LOAD (+ and -)

Turn the load off. Connect the load to

LOAD

terminals, and then turn the load on. If the battery is

below the load disconnect voltage, the load will be discon-

nected (normal LVD). There may be a short delay.

If the load is short-circuited, the controller will instantly

disconnect the load and flash the LED’s in sequence. If this

occurs, remove the load and repair the short. It will then be

necessary to disconnect the

BATTERY

+ wire and reconnect

the battery to reset the ProStar for normal operation (or press

the red

DISCONNECT

button twice if the LCD meter option

is supplied).

7. The

BATTERY TYPE

defaults to sealed, and the green LED

should be on. If your battery is a flooded type, use a piece of

wire to touch the

SELECT PIN

to the

BATTERY

- (negative)

terminal or to the negative battery post. This will change the

battery charging setpoints from a sealed to a flooded battery.

When the change has been made, the green

BATTERY TYPE

LED will turn off.

Check the LED to confirm the change. This

SELECT PIN

can

be used repeatedly. No damage can occur from touching the

pin to other terminals or parts of the controller. The

BAT-

TERY TYPE

can be changed between sealed and flooded

any number of times.

NOTE:Remember that flooded batteries must be selected

every time the battery is disconnected, because the

controller will default to sealed at start-up.

Confirm that the proper battery type has been selected by

checking the green LED. No other control setpoints can be

adjusted since they have been factory set for optimum per-

formance.

8. After about 5 minutes, observe all the LED’s. Use the LED

indicator chart in section 3.1 to make sure the controller is

operating normally for system conditions.

9. For safety and effective lightning protection, the negative

conductor of the PV system should be properly grounded.

The ProStar connects the PV-negative, Battery-negative and

Load-negative internally per UL recommendations. No

switching is done in the negative current path.

5.0 OPERATION

5.1 C

ONTROLLER

PERATION

The ProStar is a fully automatic PV system controller that

includes many electronic functions to protect both the con-

troller and the PV system. Battery charging is managed by a

constant-voltage, PWM algorithm that has been optimized

for PV systems.

The only manual tasks performed by the operator are:

a. Installation (see section 4.0)

b. Battery type selection (see section 4.2-7)

c. Disconnect button (with LCD meter, see section 3.2)

d. Reset if load short-circuits (see section 4.2-6)

e. Maintenance (see sections 5.3 and 5.4)

5.2 C

ONTROLLER

UNCTIONS

The PV system operator should become familiar with

the following functions of the ProStar controller. Refer to

Technical Specifications (6.0) for actual setpoints and other

parameter values.

LVD - Low Voltage Automatic load disconnect to protect battery

Load Disconnect from deep discharge. Auto reconnect.

Current compensated for high load currents.

Low Voltage Alarm Red LED flashes at low battery capacity to

warn of possible LVD if discharging continues.

Over Voltage If battery voltage rises above the constant

Protection voltage regulation setpoint, the PV array is

disconnected. Auto reconnect.

HVD - High Voltage Both PV array and load are disconnected

Disconnect when battery rises to dangerous voltage.

The LED’s flash in sequence. Auto reconnect

as voltage falls.

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