Uživatelská příručka solárního regulátoru nabíjení EPEVER IT-NC G3 řady MPPT

1. Úvod

The EPEVER IT-NC G3 Series MPPT Charge Controller is designed for off-grid solar systems that require both efficient solar charging and reliable DC load power. This advanced controller not only charges batteries efficiently but also directly powers DC loads, making it an ideal solution for various applications such as solar streetlights, RVs, boats, and remote monitoring systems.

With a charging capacity ranging from 50A to 100A, a high MPPT tracking efficiency of 99.9%, and dual PV input options (available on select models), this controller optimizes solar energy utilization. Certain models feature a built-in BLE Bluetooth module for convenient wireless monitoring via a mobile application. Its intelligent load control supports multiple operation modes, ensuring a stable power supply to DC devices. Remote monitoring is facilitated through an RS485 port, with optional Bluetooth, WiFi, or 4G modules for real-time data access.

Constructed with a durable all-metal die-cast housing and offering IP32 or IP43 protection, the IT-NC G3 is built for long-lasting performance in diverse off-grid environments. This MPPT controller provides smart, efficient, and versatile solar power management for reliable DC power in various settings.

EPEVER IT-NC G3 Series MPPT Solar Charge Controller, front view with model and voltagrozsahy e/proudu. — Figure 1: EPEVER IT-NC G3 Series MPPT Solar Charge Controller

Nahoře a dole view of the EPEVER IT-NC G3 Series MPPT Solar Charge Controller, showing cooling fins and various ports. — Obrázek 2: Nahoře a dole View správce

2. Bezpečnostní informace

Před instalací a uvedením do provozu si pečlivě přečtěte všechny pokyny a varování v tomto návodu. Uschovejte si tento návod pro budoucí použití.

Ujistěte se, že veškeré kabely jsou správně polarizované a bezpečně připojené, aby nedošlo k jejich poškození.
Always disconnect the solar array and battery power before installing or adjusting the controller.
Use appropriate circuit breakers or fuses for the solar array, battery, and load circuits.
Nerozebírejte ani se nepokoušejte o opravu ovladače sami. Pro servis se obraťte na kvalifikovaný personál.
Install the controller in a well-ventilated area, away from flammable gases and moisture.
Ensure the battery bank is properly ventilated to prevent gas accumulation.
Při práci s bateriemi používejte ochranu očí.

3. Konec produktuview

3.1 Hlavní vlastnosti

MPPT Charge: Dual PV inputs (on some models), tracking efficiency ≥99.5%, conversion efficiency up to 98.5%.
Konstantní svtagVýstupní funkce: Enables direct load supply with sufficient PV energy without a battery.
Multi-unit Parallel: Supports up to 6 units in parallel (with or without battery) for flexible system expansion.
Typy baterií: Provides stability and compatibility for various Lithium-ion and Lead-acid batteries (AGM, FLD, GEL).
RTS/BMS Communication: Compatible with BMS-Link module or RTS-D47K temperature sensor for accurate charge/discharge control.
Výstupní zatížení: Features 6 control modes to suit multiple application scenarios.
Vestavěný Bluetooth: Some models include a built-in Bluetooth module for convenient APP monitoring and management.
Místní monitor: LCD screen allows setting most control parameters and monitoring system status.
Vzdálený monitor: Isolated RS485 communication port for firmware upgrades and optional Bluetooth, WiFi, or 4G modules for wireless monitoring.
Záznam dat: Real-time data, events, and accumulated power recording with 15000 storage capacity.
Pracovní prostředí: Full load operation in -25~40℃; high temperature charging automatically reduces power.
Low Static Loss: < 0.05A for long system standby time.
Bydlení: All-metal die-cast housing with IP43 or IP32 protection level.
certifikace: Designed with IEC62109, UL1741, EMC standard, providing comprehensive electronic protection functions.

Detailní view of the controller's ports and connections, including PV, Battery, Load, RS485, CAN, Remote ON/OFF, and Relay terminals. — Figure 3: Controller Ports and Connections

4. Nastavení a instalace

4.1 Pořadí zapojení

Připojte baterii k regulátoru nabíjení.
Connect the DC load to the charge controller.
Connect the solar panel(s) to the charge controller.

WARNING: Always connect the battery first and disconnect the solar panel first to avoid damaging the controller.

4.2 Konfigurace PV vstupu

The IT-NC G3 series offers different PV input configurations based on the model:

50A / 60A / 75A models: Má POUZE 1 FV vstup.
80A / 100A models: Support 2 PV inputs.

Comparison of PV input terminals: 1 PV input for 50A/60A/75A models vs 2 PV inputs for 80A/100A models. — Figure 4: PV Input Differences by Model

4.3 Multi-unit Parallel Connection

The controller supports up to 6 units working in parallel for flexible system extension. This can be done with or without a battery.

Multi-unit parallel wiring diagram with batteries, showing up to 6 controllers connected to solar panels, batteries, and DC/AC loads via CAN communication. — Figure 5: Multi-unit Parallel Wiring (with Battery)

Multi-unit parallel wiring diagram without batteries, showing up to 6 controllers connected to solar panels and DC/AC loads via CAN communication. — Figure 6: Multi-unit Parallel Wiring (without Battery)

In parallel applications, the PV side and load side of each controller must be independent.
In the same parallel system, the product model must be the same, but the ID must be different.
Parallel communication cable must be connected between parallel units, and the parallel communication ports of the first and last controllers need to be connected to the terminal resistor.
Communication cable (CC-RJ45-RJ45-120) and terminal resistor (RJ45-CAN-R120) are optional.
The parallel communication cables do not cross with the PV, battery input cables or AC output cables, otherwise the parallel communication may be interfered.

4.4 Charge Enable Terminal

The 'Charge Enable Terminal' is a standard accessory. When parameters 'CPE (COM Port Enable)' and 'ROT (Remote ON/OFF Terminal)' are set to ON, you can control PV charging by plugging or removing the 'Charge enable terminal'. When set to OFF, the PV of the device is valid for charging by default, and 'Charge enable terminal' cannot control PV charging or not. Users can maintain or replace battery by unplugging this terminal, and without changing PV connection, more simple and convenient. Battery (with dry contact output) can also control PV charging/discharging.

Image detailing the 'Charge Enable Terminal' (Remote ON/OFF and Relay C NC NO) and its function for controlling PV charging/discharging. — Figure 7: Charge Enable Terminal

4.5 BMS and RTS Connections

BMS-Link Module: For accurate charge/discharge control of Lithium batteries. The cable is an accessory of the BMS-Link module and needs to be customized according to the battery or made by clients.

Diagram for BMS-Link module connection to the controller and a lithium battery for accurate control. — Figure 8: BMS-Link Module Connection

RTS-D47K Remote Temperature Sensor: Used for temperature compensation during charging/discharging of lead-acid batteries. The cable is optional and can be replaced by a standard parallel network cable. When connecting RTS-D47K, parameter 'BPRO (BMS Protocol)' should be set to '32' (by default).

Diagram for RTS-D47K remote temperature sensor connection to the controller and a lead-acid battery. — Figure 9: RTS-D47K Remote Temperature Sensor Connection

5. Návod k obsluze

5.1 Local Monitoring and Parameter Setting

The integrated LCD screen allows for convenient local monitoring of PV status, battery status, and load status. Most control parameters can be set directly via the LCD screen, eliminating the need for additional accessories. It also features a one-click restore factory default function.

Image showing the LCD display for local monitoring of PV status, Battery status, and Load status, with control parameters and navigation buttons. — Figure 10: LCD Display for Local Monitoring

5.2 Režimy výstupu zátěže

The controller supports 6 load control modes to meet various application needs:

Manuální režim: Load is controlled manually ON/OFF.
Režim zapnutého zatížení při západu slunce: Load turns on at sunset.
Režim zapnutého zatížení při východu slunce: Load turns on at sunrise.
Západní zatížení ZAP + režim časovače: Zátěž se zapne při západu slunce a zůstane zapnutá po nastavenou dobu.
Režim časovače: Load turns on and off based on a set schedule.
Režim Vždy ZAPNUTO: Load remains on continuously. Under Always ON Mode, the load can work 24 hours a day until the battery triggers the over-discharge protection.

Image illustrating the 6 load control modes with visual representations of day/night cycles and a timer icon. — Figure 11: Load Control Modes

5.3 Vzdálené monitorování

The isolated RS485 communication port allows for firmware upgrades and remote monitoring. Optional Bluetooth, WiFi, or 4G modules can be connected to achieve wireless monitoring and management via a mobile app or PC software.

Image showing remote monitoring setup via RS485 port, with options for Bluetooth, WiFi, 4G modules, and firmware upgrade via laptop. — Figure 12: Remote Monitoring Options

5.4 Protokolování dat

The controller provides real-time data, event logs, and power recording with a 15000 storage capacity, ensuring full capacity cycle coverage. Data is not lost in case of power failure. Scada software (Solar Guardian) can be used to query and download historical data for statistics and analysis.

Image showing data logging feature with a laptop connected to the controller for data download. — Figure 13: Data Logging Feature

6. Údržba

Pravidelná kontrola: Pravidelně kontrolujte těsnost a korozi všech kabelových spojů.
Čištění: Keep the controller clean and free from dust. Use a dry cloth to wipe the surface. Ensure cooling fins are clear of obstructions.
Aktualizace firmwaru: Zkontrolujte výrobce website for available firmware updates to ensure optimal performance and access to new features. Updates can typically be performed via the RS485 port.
Podmínky prostředí: Zajistěte, aby instalační prostředí zůstalo v rámci specifikovaných provozních teplot a vlhkostí.

7. Řešení problémů

The IT-NC G3 series incorporates multiple protection features to ensure system safety and reliability:

Diagram illustrating various protections: Reverse Polarity, Over Voltage, Over Discharging, Overload, Over Temp, Short Circuit, Night Reverse Charging, Over Current. — Obrázek 14: Ochranné prvky

Ochrana proti přepólování: Prevents damage from incorrect wiring of PV, battery, or load.
Přes Voltage ochrana: Ochranná opatření proti nadměrnému objemutage from the solar array or battery.
Ochrana proti nadměrnému vybití: Prevents battery damage due to excessive discharge.
Ochrana proti přetížení: Protects the load circuit from excessive current.
Ochrana proti přehřátí: Reduces power or shuts down if the controller overheats.
Ochrana proti zkratu: Chrání před zkraty ve fotovoltaických systémech, bateriích nebo zátěžových obvodech.
Ochrana proti zpětnému nabíjení v noci: Prevents battery discharge back into the solar panels at night.
Nadproudová ochrana: Omezuje proud na bezpečnou úroveň.

If you encounter issues, check the LCD display for error codes or warnings. Verify all connections are secure and correct. If problems persist, consult the full user manual or contact technical support.

8. Specifikace

The following table provides detailed electrical and mechanical specifications for various IT-NC G3 models.

Detailed specification table for various IT-NC G3 models (IT5420NCG3, IT6415NCG3, IT6420NCG3, IT7415NCG3, IT8420NCG3, IT10415NCG3, IT10420NCG3), covering electrical parameters, controller operating voltage range, battery types, rated charging/discharging current, maximum charging power, maximum load current, PV maximum open-circuit voltage, MPPT operating voltage range, tracking efficiency, full load efficiency, temperature compensation coefficient, self-consumption, grounding type, dry contact IO, RS485 communication, mechanical parameters (dimensions, weight), operating/storage temperature, relative humidity, altitude, enclosure degree, pollution degree, certification (CE). — Obrázek 15: Tabulka technických specifikací

8.1 Comparison with other series

Comparison table: IT-NC G3 vs Tracer-AN (50A-100A) series, highlighting features like housing, IP rating, Bluetooth, Dual MPPT, Constant Volt Output, BMS communication, Data log, Load output, COM enable control, Static loss, EMC Certification. — Figure 16: IT-NC G3 vs Tracer-AN Series Comparison

Comparison table: IT-NC G3 vs ET-NC G3 series, focusing on Built-in Bluetooth and Load output. — Figure 17: IT-NC G3 vs ET-NC G3 Series Comparison

8.2 Work Environment and Power Derating

The controller is designed for full load operation in temperatures ranging from -25℃ to 40℃. At higher temperatures, the charging power will automatically reduce to protect the device.

Power derating curve when temperature is higher than 40°C for IT-NC G3 (100A) and ET-NC G3 (100A) models. — Figure 18: Power Derating Curve

8.3 Podporované typy baterií

The controller provides stability and compatibility for various battery types, including Lithium-ion, AGM, FLD (Flooded), and GEL batteries.

Image showing supported battery types: Lithium-ion, AGM, FLD, GEL, with a waveform graph illustrating output overcurrent protection. — Obrázek 19: Podporované typy baterií

9. Uživatelské tipy

Správná velikost: Ensure your solar panel array and battery bank are appropriately sized for your controller's capacity to maximize efficiency and prevent damage.
Větrání: Always install the controller in a location with good airflow to prevent overheating, especially during high-power operation.
Monitoring App: If your model supports Bluetooth, download the EPEVER monitoring app for convenient real-time data and remote control.
Rozměr kabelu: Use the recommended cable gauges for PV, battery, and load connections to minimize power loss and ensure safety.

10. Záruka a podpora

Produkty EPEVER se obvykle dodávají se standardní zárukou výrobce. Prostudujte si prosím záruční list dodaný s produktem nebo navštivte oficiální webové stránky EPEVER. webpodrobné záruční podmínky naleznete na webu.

For technical support, troubleshooting assistance, or service inquiries, please contact your authorized EPEVER dealer or the EPEVER customer service department. Have your product model and serial number ready when contacting support.

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Řada EPever IT-NC G3