Epever Tracer 4215BN Manuale utente

MPPT Solar Charge Controller

User Manual

Model：

Tracer4215BN

Contents

Important Safety Instructions 1

1 General Information 2

1.1 Overview 2

1.2 Characteristics 4

1.3 Maximum Power Point Tracking Technology 5

1.4 Battery Charging Stage 7

2 Installation Instructions 11

2.1 General Installation Notes 11

2.2 PV Array Requirements 12

2.3 Wire Size 12

2.4 Mounting 13

3 Operation 16

3.1 LED Indication 16

3.2 Setting Operation 17

3.3 Battery Parameters 18

3.4 Load Set Mode 22

4 Others 24

4.1 Protection 24

4.2 Troubleshooting 26

4.3 Maintenance 27

5 Technical Specifications 29

Annex I Conversion Efficiency Curve 31

Annex II Dimensions 32

Important Safety Instructions

Please reserve this manual for future review. This manual contains all safety,

installation, and operation instructions for the Maximum Power Point Tracking

(MPPT) controller in the Tracer BN series ("the controller" is referred to in this

manual).

General Safety Information

Read all the instructions and warnings carefully in the manual before

installation.

No user-serviceable component exists inside the controller. DO NOT

disassemble or attempt to repair the controller.

Mount the controller indoors. Prevent exposure to the elements and do not

allow water to enter the controller.

Install the controller in well-ventilated places. The controller's heat sink may

become very hot during operation.

Install appropriate external fast-acting fuses/breakers.

Disconnect all PV array connections and fast-acting fuses/breakers close to the

battery before controller installation and adjustment.

Power connections must remain tight to avoid excessive heating from a loose

connection.

WARNING

Do not install the controller in humid, salt spray, corrosion,

greasy, flammable, explosive, dust accumulative, or other severe

environments.

1 General Information

1.1 Overview

Appreciate you for choosing MPPT solar charge controller, the Tracer BN series.

Based on a common negative design and advanced MPPT control algorithm, with a

die-cast aluminum design for heat dissipation, products in this series are artistic,

economical, and practical.

With the MPPT control algorithm, products of this series can fast and accurately

track the photovoltaic array's best maximum power point (MPP). Obtain the

maximum solar energy in time, which remarkably improves energy efficiency. With

the Modbus communication interface, it is convenient for customers to expand

applications and monitor various fields. Such as telecommunication base stations,

household systems, caravan systems, street lighting systems, wilderness monitoring

systems, etc.

All-round electronic fault self-test and enhanced electronic protection functions could

prevent damage to system components from installation errors or system failures.

Feature:

Advanced Maximum Power Point Tracking (MPPT) technology, with no less

than 99.5% efficiency.

High-quality components, perfecting system performance, with a maximum

conversion efficiency of 98%.

Ultra-fast tracking speed and guaranteed tracking efficiency.

Accurately recognizing and tracking of multiple power points.

Reliable automatic limit function of maximum PV input power, ensuring no

overload.

Wide MPP operating voltage range.

Die-cast aluminum design, ensuring excellent heat dissipation characteristics.

12/24VDC automatically voltage-identifying system or user-defined working

voltage.

LED indicators showing system status, simple and clear.

Multiple load control modes: manual control, light ON/OFF, light On+Timer, and

time control.

Support multiple battery types, including lithium batteries

Battery temperature compensation function.

Real-time energy statistics function.

The RS485 communication bus interface and Modbus communication protocol

allow it to meet various communication requirements in different situations.

Available for PC monitoring and external display unit connecting like MT50 and

so on, realizing real-time data checking and parameter setting.

1.2 Characteristics

Figure 1-1 Tracer BN Series Characteristics

Item

Name

Item

Name

①

Heat Sink

⑥

Load Terminal

②

Charging LED indicator

⑦

RS485 Port

(Isolated RJ45 port)

③

RTS①Port

⑧

Button

④

Solar Terminal

⑨

Battery LED indicator

⑤

Battery Terminal

Explanation:

①Connect an RTS (Remote Temperature Sensor) to detect battery temperature

remotely.

⑤

⑥

⑨

⑦

⑧

④

①

②

③

1.3 Maximum Power Point Tracking Technology

Due to the nonlinear characteristics of the solar array, there is a maximum energy

output point (Max Power Point) on its curve. Traditional controllers, adopting the

switch charging technology and PWM charging technology, can't charge the battery

at the maximum power point. They can't harvest the maximum energy available from

the PV array. In comparison, the solar charge controller with Maximum Power Point

Tracking (MPPT) Technology can lock on the point to harvest the maximum energy

and deliver it to the battery.

The MPPT algorithm of our company continuously compares and adjusts the

operating points to locate the array's maximum power point. The tracking process is

fully automatic and does not need user adjustment.

As shown in Figures 1-2, the curve is the characteristic curve of the array. The

MPPT technology will boost the battery charge current by tracking the MPP.

Assuming the conversion efficiency of the solar system is 100%, the following

formula is established:

Normally, the VMpp is always higher than VBat. Due to the principle of energy

conservation, the IBat is always higher than IPV. The greater the discrepancy between

VMpp & VBat, the greater the discrepancy between IPV& IBat. The greater the

discrepancy between the PV array and battery, the bigger the reduction of the

system's conversion efficiency. Thus the controller's conversion efficiency is

particularly important in the PV system.

Figure 1-2 is the maximum power point curve, and the shaded area is the charging

range of a traditional solar charge controller (PWM Charging Mode). It can diagnose

that the MPPT mode can improve the usage of solar energy resources. According to

our test, the MPPT controller can raise 20%-30% efficiency compared to the PWM

controller. (Value may fluctuate due to the ambient circumstance's influence and

energy loss.)

Figure 1-2 Maximum Power Point Curve

The panel may appear Multi-MPP as shading from clouds, trees, or snow in actual

application. However, there is only one real Maximum Power Point. As Figure 1-3

show:

Figure 1-3 Mutil-MPP Curve

Indice

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