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Steca PR 2020 User Manual

Steca PR 2020
20 pages
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Operating instructions
Solar charge controller
10 A / 15 A / 20 A / 30 A
739.704 | 11.10
EN
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Steca PR 2020 Specifications

General IconGeneral
TypePWM
Rated Current20 A
Temperature CompensationYes
DisplayLCD
TerminalsScrew terminals
Max. PV Open Circuit Voltage50 V
Charge RegulationPWM
Load Current20 A
Nominal Voltage12V / 24V
ProtectionReverse polarity, Short circuit
Operating Temperature-20°C to +50°C
Max. PV Power at 12V240 W
Max. PV Power at 24V480 W
Battery TypeLead-acid, Gel, AGM

Summary

Operating Instructions

Solar Charge Controller Overview

Introduces the solar charge controller models and their basic identification.

Safety Instructions

General Safety Guidelines

Provides essential safety precautions for handling the controller and batteries, including specific warnings.

Controller Protection Features

Deep Discharge & Overcharging Protection

Prevents excessive battery discharging or overcharging.

Installation Guide

Connecting the Controller Components

Step-by-step instructions and safety measures for connecting solar modules, battery, and load.

Controller Operation

Display and Control Elements Overview

Identifies the controller's buttons and display window for system monitoring and settings.

Understanding Display Windows

Describes the various symbols, data, and information presented on the controller's screen.

Controller Functions

State of Charge (SOC) Calculation

Explains how the controller calculates and utilizes battery SOC for optimal performance and protection.

Battery Charge Control Methods

Details the controller's constant voltage charging and PWM methods for battery charging.

Deep Discharge Protection Mechanism

Describes how the controller prevents excessive battery discharge by switching off the load.

Configuring the Controller

Accessing and Modifying Settings

Instructions on navigating menus and changing controller parameters using the buttons.

Controller Operating Modes

Explains available modes like SOC control and Voltage control, and their usage scenarios.

Battery Type Selection

Guides setting the battery type (Gel, Liquid, Li) for correct charging voltage.

Error Messages and Troubleshooting

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