Epever STI200 User manual

User’s Manual

Before using the inverter, you need to read and save the

safety instructions.

STI SERIES

(STI200, STI300, STI500, STI700, STI1000)

Power Frequency

Pure Sine Wave Inverter

The information presented in this document does

not form part of any quotation or contract, is believed

to be accurate and reliable and may be changed without

notice.

CONTENTS

1. Introduction ................................................... 1

2. Important Safety Instructions........................ 2

3. Inverter Operation ......................................... 4

4. Functions ....................................................... 5

5. Troubleshooting........................................... 12

6. Maintenance and Warranty.......................... 13

7. Technical Specification ............................... 14

1. Introduction

Thanks for purchasing STI series inverter. The product is a pure sine

wave power frequency inverter which can convert 12/24/48Vdc to

220/230Vac 50Hz based on full digital and intelligent design. It features

high reliability, high efficiency, concise outline, full protection functions,

easy installation and operation. The inverter can be applied in many fields,

such as household appliances, electric tools and industrial devices etc,

especially for solar photovoltaic power system.

Features:

Complete isolation-type inverter technology, noiseless output.

Adoption of advanced SPWM technology, pure sine wave output.

Dynamic current loop control technology to ensure inverter reliable

operation.

Wide DC input voltage range.

Excellent EMC design.

Low output harmonic distortion(THD≤3%).

LED indicators for input voltage range, load power range, normal

output & failure state.

Optional energy saving mode.

Electronic protect for reverse polarity.

Extensive protections: short-circuit, overload, under/over input

voltage, over-temperature, and inverter‟s inner fault identification

protections.

Wide working temperature range (industrial level).

Continuous operation at full power.

2. Important Safety Instructions

As an AC power supply equipment, the inverter‟s output voltage is

with the same level as that of household power plug. Mind the AC output

terminals, or you may get an electric shock!

Attentions:

Connect the DC input according to the requirement strictly. The

power inverter has a relatively wide input range, but too high or too

low input may cause problems even destroy the inverter. The surge

input voltage can‟t exceed 18V for the 12V inverters, 36V for 24V

inverters, 72V for 48V inverters, or the inverters will be damaged.

Do not expose the inverter to humid, flammable, explosive or dust

environment.

Keep the inverter out of children touch.

Inverter input is recommended to connect to battery, the min.

capacity of battery(expressed in AH) should be calculated in the

following way: 5times of the rated power of the inverter/battery

voltage. If for testing purpose, user should select DC power supply

current at least twice greater than that of the inverter rated input to

keep inverter normal operation. Use DC power supply for testing

may cause the damage of the inverter.

When the inverter works continuously, its surface may became very

hot, please make sure the air ventilation clearance around the inverter

is more than 10cm. Keep away from the material or device which

may suffer from high temperature when the inverter is working. Do

not install the inverter in airproof location and keep enough space

around the inverter.

The wire connects between battery and inverter should be shorter

than 3m, the current density should be less than 3.5A/mm2while the

output of inverter is fully loaded. If the wire longer than 3m, the

current density should be reduced.

A fuse or breaker should be used between battery and inverter, the

value of fuse or switch should be twice of the inverter rated input

current.

Do not connect the battery charger or similar devices to the input

terminal of the inverter.

Do not put the inverter close to the flooded lead-acid battery because

the sparkle in the terminals may ignite the hydrogen released by the

battery.

It‟s an off-grid inverter, if connect to the grid, the inverter may be

damaged.

This inverter can only be used singly, parallel connection or in series

will damage the inverters.

Do not attempt to repair the fault inverter yourself, otherwise it may

lead to a serious accident. Please contact the manufacture‟s engineer.

3. Inverter Operation

Connect the input and output terminals accurately. Turn on the

power using the ON / OFF switch on the front panel. In order to avoid the

protections resulted from the surge power, please turn on AC loads one by

one after the output of the inverter is normal. Please check it as below:

Set the power switch to the „OFF‟position.

Insert the load‟s plug into the inverter‟s output outlet.

Connect the battery („+‟ terminal with red line, „-‟with black line). Do

not connect them by contraries, or the power inverter will not work.

Switch the inverter to ON and then turn on the loads one by one.

Check the operation state of both power inverter and loads. „Green‟

of the failure LED indicator means the state is normal.

If there are different loads, it is suggested that turn on the load with

large startup current first, such as television, then turn on the load

such as lamp when the inverter works stable.

If the failure LED indicator is „Red‟ and the buzzer alarms or no

output when you turn on devices, switch off the loads and power

inverter immediately. Check the system by referring to the

troubleshooting guide. Turn on the devices again according to the

operation methods after the failure is removed.

4. Functions

DC Input Panel

AC Output Panel

Protective

Grounding

Fan

Ventilatio

DC Input

Terminal

Negative

DC Input

Terminal

Positive

Fault

Indicator

AC Outlet

ON/OFF Switch

Saving Mode Switch

RS485

Port

Input Level

Indicator

Load Level

Indicator

The Optional Outlet

Australia/New Zealand

European

This manual suits for next models

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