Epever NP260 Manuale utente

PURE SINE WAVE INVERTER

USER MANUAL

NP260;NP400；

NP600;NP800;NP1000

NP1200;NP1500;NP2000

NP2500;NP3000;NP3500

NP4000;NP5000

 
 
Contents 
Important Safety Instructions ...................................................1 
Overview ............................................................................... 5 
Characteristics....................................................................... 7 
Designations of models.........................................................14 
Schematic diagram for connections...................................... 16 
Installation instructions..........................................................18 
1 General installation notes............................................................18 
2 Wire size &breaker......................................................................18 
3 Mounting .....................................................................................20 
Protection..............................................................................27 
Troubleshooting.....................................................................30 
Maintenance..........................................................................31 
Technical Specifications........................................................ 32 
AnnexⅠDisclaimer...................................................................47 

Important Safety Instructions

Please reserve this manual for future review.

This manual contains all the instructions about safety, installation, and operation for the

NPower series pure sine wave inverter (in the following referred to as the inverter).

1. Explanation of symbols

To enable the user to use the product efficiently and ensure personal and property safety,

please read the related words carefully when you encounter the following symbols in the

manual.

TIP: Indicates any practical advice for reference.

IMPORTANT: Indicates a critical tip during the operation, if ignored, may cause

the device to run in error.

CAUTION: Indicates potential hazards, if not avoided, may cause the device

damaged.

WARNING: Indicates the danger of electric shock, if not avoided, would cause

casualties.

WARNING HOT SURFACE: Indicates the risk of high temperature, if not avoided,

would cause scalds.

Read the user manual carefully before any operation.

The entire system should be installed by professional and technical personnel.

2. Requirements for professional and technical personnel

Professionally trained;

Familiar with related safety specification for the electrical system;

Read the entire user manual to get related safety cautions.

3. Professional and technical personnel is allowed to do

Install the inverter to the specified location;

Test-run before installation;

Operate and maintain the inverter.

4. General installation notes

When receiving the inverter, please check if there is any damage that occurred in

transportation. If you find any problem, please contact the transportation company or

our company in time.

Follow the instructions before placing or moving the inverter.

Make sure there isn't any arc danger in the operation area before installation.

Inverter input is recommended to connect to the battery. The minimum capacity of the

battery (expressed in AH) should be calculated in the following way: 5 times the

inverter/battery voltage's rated power.

Keep the inverter out of children's touch.

As an off-grid inverter, connect the AC output terminals to the utility or electrical source

is not recommended; otherwise, the inverter may be damaged.

The inverter can be used singly; a parallel connection or in series will damage the

inverters.

5. Safety cautions for mechanical installation

Before installation, ensure the inverter has no electrical connection.

Ensure the inverter installation's heat dissipation space. Do not install the inverter in

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

environments.

6. Safety cautions for electrical connection

Check if all the wiring connections are tight to avoid the danger of heat accumulation

due to a loose connection.

The protective grounding must be connected to the ground. The cross-section of the

wire should not be less than 4mm2.

Connect the DC input according to the requirement strictly. The power inverter has a

relatively wide input range. Still, too high or too low input may cause problems even

destroy the inverter.

The wire connects between the battery and inverter should be shorter than 3m, the

current density should be less than 5A/mm2. In contrast, the output of the inverter is

fully loaded. If the wire is longer than 3m, the current density should be reduced.

A fuse or breaker should be used between battery and inverter; the fuse or breaker

value should be twice the inverter rated input current.

DO NOT put the inverter close to the flooded lead-acid battery because the terminals'

sparkle may ignite the hydrogen released by the battery.

The output is forbidden to connect other power sources or utilities; otherwise, the

inverter will be damaged. The inverter must be off when connecting the load.

Do not directly connect the battery charger or similar devices to the input terminal of

the inverter.

7. Safety cautions for inverter operation

Do not touch it when the inverter is working. Its surface may become very hot. Keep

away from the material or device which may suffer from high temperature.

Do not open the inverter to operate when it is working.

The AC output with high voltage during the inverter operation, so do NOT touch the

connection point, it may cause danger.

8. The dangerous operations which would cause electric arc, fire or explosion

Touch the wire end, which hasn't been insulation treated, may cause electriferous.

Touch the wiring copper row, terminals, or internal devices, which may cause

electriferous.

The power cable connection is loose.

Screw or other spare parts inadvertently falls into the inverter.

Incorrect operation by untrained non-professional or technical personnel.

Once an accident occurs, it must be handled by professional and technical

personnel.Any incorrect operation would cause a more serious accident.

9. Safety cautions for stopping the inverter

After the inverter stop working for ten minutes, the internal conductive devices could be

touched.

The inverter can be restarted after removing the faults, which may affect its safety

performance.

No maintenance parts in the inverter. If any maintenance service is required, please

contact our after-sales service personnel.

Do NOT touch or open the case after the device powered off within ten mins.

10. Safety cautions for inverter maintenance

Testing equipment is recommended to check the inverter without voltage or current;

When conducting electrical connection and maintenance work, must post temporary

warning signs or put up barriers to prevent unrelated personnel from entering the

electrical connection or maintenance area.

Improper maintenance operation to the inverter may cause personal injury or

equipment damage.

To prevent static damage, please wear an anti-static wrist strap, or avoid unnecessary

contact with the circuit board.

1 Overview

Based on a full-digital intelligent technology, the NPower series is a pure sine wave inverter,

which can convert 12/24/48V DC power to 220/230V AC power. With an advanced SPWM

technology, voltage-current double closed-loop control, and completely isolated inverter

technology, the NPower has high-quality electrical parameters and a stronger ability to

resist impact load. The input terminal's surge prevention helps to meet the lithium battery's

special requirements and ensure the inverter's safety and reliability.

The cage is designed with a galvanized board of high strength and corrosion resistance.

With high reliability, high efficiency, complete protection function, easy installation and

operation, the inverter is suitable for AC loads of household appliances, power tools,

industrial equipment, electronic audio and video, and solar PV power generation

system(such as vehicle inverter application, solar RV, solar household, solar yacht, and

solar power station, etc.)

Features：

Advanced SPWM technology and pure sine wave output

Full digital double closed-loop control to enhance the load capacity

Completely isolated inverter technology for the input and output

Anti-surge design to support the lithium battery system perfectly

Lower output harmonic distortion(THD≤3%)

Excellent EMC design for the AC output to prevent interference of connected

equipment

Selectable output voltage(220/230VAC) and frequency(50/60Hz) by the DIP switch

Extensive protection: input reverse polarity, input over voltage, input low voltage,

output overload, output short circuit, and overheating

Remote control and monitor the inverter by APP or PC software

Configurable input under voltage and input under voltage reconnect voltage via the

APP or PC software

Set the inverter's ID via the APP or PC software to monitor several inverters.

Adopt a Galvanized board of high strength and strong corrosion-resistance for the

cage

Selectable output terminal: Chinese dual-socket, Australia/New Zealand, European,

Universal, and Terminal

Display running status by the local device(only NP4000-22(T) and NP5000-42(T)),

optional external remote meter

Easy maintenance and repair

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