Manson Engineering Industrial PVC-7820 User manual

PVC-7820

12/24Vdc 40A Programmable PV Charger Controller

User's Manual

Precautions

1. Before using the charge/load controller, read all the instructions and cautionary markings

on the charge/load controller, the batteries and the photovoltaic panels.

2. Do not attempt to repair the controller. Incorrect re-assembly may result in a risk of

electric shock or fire.

3. To reduce risk of electric shock, disconnect all wiring before attempting any maintenance

or cleaning. Turning off controls will not reduce this risk. PV panels produce power when

exposed to light – cover them with opaque material before servicing.

4. Working in Vicinity of a Lead Acid Battery is dangerous. Batteries generate EXPLOSIVE

gases during normal operation. Provide ventilation to outdoors from the highest point of

the battery compartment.

5. Be extra cautious to reduce the possibility of dropping a metal tool onto batteries. It might

spark or short-circuit batteries or other electrical parts that may cause explosion. Cover

wrench handles with plastic tape or vinyl dip coating material.

Specifications

12V Batt. System

24V Batt. System

System Battery Operation Range

4-16V nominal

12V

8-32V nominal

24V

Max. Continuous PV Open Circuit Voltage

30V

60V

Max. Charging Current

20A

Max. Output Current at Load Terminal

20A

Battery type

Bulk

Float

WET

14.7V

13.4V

Sealed

14.4V

13.6V

LifeO4

14.6V

14.4V

Battery Low Voltage Disconnect (LVD)

11.5V

23V

LVD Delay Time

5 minutes

Battery Low Voltage Reconnect (LVR)

12.8V

25.6V

LVR Delay Time

5 minutes

Protections

Over Temperature Protection (Self Recoverable)

Yes

Over Voltage Protection at PV Terminal

Yes

Over Voltage Protection at Battery Terminal

Yes

Over Charge Current Protection (Self Recoverable)

Yes

Over Current Protection at Load Terminal

(Self Recoverable)

Yes

Battery Reverse Polarity Protection

(Self Recoverable)

Yes

PV Reverse Polarity Protection (Self Recoverable)

Yes

USB Charging Port forApple iPad, iPhone and

Tablets Smart Phone

5VDC 1A Max.

Remote Temperature Sensor

Yes

Operation Ambient Temperature Range

-10 to +50°C

Dimension (L x W x H)

150x200x64mm 5.9x7.9x2.5inch

Weight

1.1kg 2.5lbs

Table of Contents

1. Introduction 5

2. Control and Indicator 6

3. Operation 8

3.1 Connection 8

3.2 Select System Voltage 8

3.3 Select Battery Type 9

3.4 Set LOAD ON/OFF Program 9

3.5 USB Charging Port Selection 9

3.6 Status LED Indicators 10

3.7 Remote Signal Terminal 10

P.5

1. Introduction

●The PVC-7820 PV Charge Controller is designed for use with all types of 12V and 24V

Photovoltaic (PV) panels/ system and different type of 12V/24V batteries.

●Suitable for PV panels with Open Circuit Voltage

System Voltage

PV panel open circuit voltage range

12V

17Vdc – 30Vdc

24V

34Vdc – 60Vdc

●Rated charging current and load current are 20Amp

●PWM Charging,

●Build-In Microprocessor for PV charge control to maximize the charging efficiency,

●Overcharge and Over-discharge Protection,

●3-stage Charge Control (Bulk, Absorption & Float) to allow battery be left unattended for

long period,

●Over Temperature Protection,

●Short-Circuit Protection at load terminal & Battery Reverse Polarity Protection at Battery

Connection Terminal,

●Temperature Sensor for compensated battery charging,

●Remote Signal Terminal.

P.6

2. Control and Indicator

The following diagram shows the hardware interface of the PV Charge Controller.

Figure. 1 Front view of PV Charger Controller

LEDs

1. Battery status indicator

2. Charging status indicator

3. Fault indicator

4. Battery Type indicator

5. Load terminal ON/OFF program selection

6. USB charging port selection

7. 12/24V system selection

8. PV Reverse polarity

9. Battery Reverse polarity

Buttons

10. USB charging port setting button

11. Battery Type selection button

12. Load ON/OFF selection button

13. System voltage selection button

P.7

Figure. 2 Connection port

Connection Ports

14. PV terminal

15. Battery terminal

16. Load terminal

17. Battery Remote Sense terminal

18. Battery Temperature Sensor connector

19. USB charging port

20. Remote control extension

P.8

3. Operation

3.1 Connection

Figure. 3 Connection of PV Charge Controller

3.2 Select System Voltage

The system voltage only can be selection within 1 minute after power up. If leave it for 1

minute without any action, the system will set with previous setting.

The LED indication;

System Voltage

LED color

12V

Green

24V

Orange

Setting Steps;

i) Disconnect PV and Battery terminal.

ii) Connect Battery Terminal.

iii) Within 1 minute, press System button to selection system voltage. Green color for

12V system, Orange color for 24V system.

iv) Press and hold System button to confirm selection

The PV Controller will go into self test mode with all LED on after 1 minute from power up.

P.9

3.3 Select Battery Type

After PV controller up and run, you can set the battery type.

Voltage for different battery type;

Battery Type

Bulk voltage

Float voltage

WET

14.7V

13.4V

Sealed

14.4V

13.6V

LifeO4

14.6V

14.4V

- Press and hold Battery Type button to switch to next battery type.

- The battery type setting will rotate in following sequence

WET → Sealed → LiFeO4 → WET …...

3.4 Set LOAD ON/OFF program

The LOAD terminal can be programed to switch ON/OFF in following selection

Program

LED indication

Description

Always ON

ALL

The LOAD terminal will switch ON all the time.

Night Light Mode

NLM

The LOAD terminal only switch ON after sunset and

switch OFF after sunrise.

Day Light Mode

DLM

The LOAD terminal only switch ON after sunrise and

switch OFF after sunset.

- Press and hold LOAD button to switch to next LOAD output ON/OFF program.

- The LOAD output ON/OFF program will rotate in following sequence.

NLM → DLM → NLM&DLM → ALL ON → ALL OFF → NLM…...

3.5 USB Charging port selection

The USB charging port can be used to charge iPad, iPhone, Android Tablet and SmartPhone.

Port status

LED color

iPad/iPhone support

Orange

Android Device support

Green

No Charging

OFF

- Press and hold USB button to switch different USB charging port setting.

P.10

3.6 Status LED indicators

Battery status indicator – Green/Red LED

LED

12V

24V

Green Flashing

Battery Voltage = Bulk Voltage

Green Solid

Battery Voltage >= 12.6V

Battery Voltage >= 25.2V

Red Flashing

Battery Voltage <=12.6V

Battery Voltage <= 25.2V

Red Solid

Battery Voltage <=LVD

Orange

Battery Voltage < LVD, LOAD OFF

Charging status indicator

Stage

Description

Bulk

Fast Flashing

Absorption

Slow Flashing

Float

Incident on

3.7 Remote Signal Terminal

The PV controller has an optional remote signal output terminal which can:

●Used to control the ON/OFF operation of equipment such as inverter hooked up to the

battery bank to operate along with the night-light mode program and share the safeguard

function such as low battery disconnect and reconnect.

●Extend battery status LED to allow remote monitoring Battery bank status.

RJ-45 Pin Configuration;

RJ-45 Pin Connection diagram

Table of contents

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