Techno Sun OFF1307 Manual de usuario

11KW

Solar Inverter

Version: 1.0

User Manual

 
 
Table of Contents 
ABOUT THIS MANUAL ......................................................................................................................................1
Purpose............................................................................................................................................................1
Scope ...............................................................................................................................................................1
SAFETY INSTRUCTIONS...................................................................................................................................1
INTRODUCTION .................................................................................................................................................2
Features...........................................................................................................................................................2
Basic System Architecture ...............................................................................................................................2
Product Overview.............................................................................................................................................3
Unpacking and Inspection ...............................................................................................................................4
Preparation ......................................................................................................................................................4
Mounting the Unit.............................................................................................................................................4
Battery Connection ..........................................................................................................................................5
AC Input/Output Connection............................................................................................................................6
PV Connection .................................................................................................................................................8
Final Assembly.................................................................................................................................................9
Communication Connection...........................................................................................................................10 
Dry Contact Signal and RSD Control............................................................................................................. 11 
OPERATION......................................................................................................................................................12 
Power ON/OFF ..............................................................................................................................................12 
Operation and Display Panel .........................................................................................................................12 
Pages Information..........................................................................................................................................13 
LCD Setting....................................................................................................................................................14 
Warning and Fault List ...................................................................................................................................18 
CLEARANCE AND MAINTENANCE FOR ANTI-DUST KIT............................................................................19 
Overview ........................................................................................................................................................19 
Clearance and Maintenance ..........................................................................................................................19 
BATTERY EQUALIZATION ..............................................................................................................................20 
SPECIFICATIONS .............................................................................................................................................21 
Table 1 Line Mode Specifications ...................................................................................................................21 
Table 2 Inverter Mode Specifications .............................................................................................................22 
Table 3 Charge Mode Specifications...............................................................................................................23 
Table 4 General Specifications........................................................................................................................23 
TROUBLE SHOOTING .....................................................................................................................................25 
Appendix I: Parallel function ..........................................................................................................................27 
Appendix II: BMS Communication Installation.............................................................................................37 
Appendix III: The Wi-Fi Operation Guide.......................................................................................................40 
Appendix IV: The CT Operation Guide ..........................................................................................................50 

ABOUT THIS MANUAL

Purpose

This manual describes the assembly, installation, operation and troubleshooting of this unit. Please read

this manual carefully before installations and operations. Keep this manual for future reference.

Scope

This manual provides safety and installation guidelines as well as information on tools and wiring.

SAFETY INSTRUCTIONS

WARNING: This chapter contains important safety and operating instructions. Read and keep

this manual for future reference.

1. Before using the unit, read all instructions and cautionary markings on the unit, the batteries and all

appropriate sections of this manual.

2. CAUTION –To reduce risk of injury, charge only deep-cycle lead acid type rechargeable batteries.

Other types of batteries may burst, causing personal injury and damage.

3. Do not disassemble the unit. Take it to a qualified service center when service or repair is required.

Incorrect re-assembly may result in a risk of electric shock or fire.

4. To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning.

Turning off the unit will not reduce this risk.

5. CAUTION –Only qualified personnel can install this device with battery.

6. NEVER charge a frozen battery.

7. For optimum operation of this inverter/charger, please follow required spec to select appropriate cable

size. It’s very important to correctly operate this inverter/charger.

8. Be very cautious when working with metal tools on or around batteries. A potential risk exists to drop

a tool to spark or short circuit batteries or other electrical parts and could cause an explosion.

9. Please strictly follow installation procedure when you want to disconnect AC or DC terminals. Please

refer to INSTALLATION section of this manual for the details.

10. Fuses are provided as over-current protection for the battery supply.

11. GROUNDING INSTRUCTIONS -This inverter/charger should be connected to a permanent grounded

wiring system. Be sure to comply with local requirements and regulation to install this inverter.

12. NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when DC input

short circuits.

13. Warning!! Only qualified service persons are able to service this device. If errors still persist after

following troubleshooting table, please send this inverter/charger back to local dealer or service

center for maintenance.

14. WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable:

single crystalline, poly crystalline with class A-rated and CIGS modules. To avoid any malfunction, do

not connect any PV modules with possible current leakage to the inverter. For example, grounded PV

modules will cause current leakage to the inverter. When using CIGS modules, please be sure NO

grounding.

15. CAUTION: It’s required to use PV junction box with surge protection. Otherwise, it will cause

damage on inverter when lightning occurs on PV modules.

INTRODUCTION

This is a multi-function inverter, combining functions of inverter, solar charger and battery charger to offer

uninterruptible power support in a single package. The comprehensive LCD display offers user-configurable

and easy-accessible button operations such as battery charging current, AC or solar charging priority, and

acceptable input voltage based on different applications.

Features

Pure sine wave inverter

Built-in LED bars to indicate the energy source and power flow

Touchable button with seven-page colorful LCD

Built-in Wi-Fi for mobile monitoring and OTA firmware upgrade (APP is required)

Supports USB On-the-Go function

Built-in current transformer sensor to meet self-consumption application

Dual outputs for smart load management

Two independent AC power sources connected and switched automatically

Configurable output usage timer and prioritization

Configurable charger source priority

Configurable battery charging current

Reserved communication ports for BMS (RS485, CAN-BUS)

Reserved external BTS (Battery Temperature Sensor) detection

Reserved optional GFCI, Rapid shutdown, AFCI detections

Built-in anti-dusk kit

Basic System Architecture

The following illustration shows basic application for this unit. It also required the following devices to have a

complete running system:

Generator or Utility mains.

PV modules

Consult with your system integrator for other possible system architectures depending on your requirements.

This inverter can power various appliances in home or office environment, including motor-type appliances

such as tube light, fan, refrigerator and air conditioners.

Figure 1 Basic hybrid PV System Overview

Product Overview

NOTE: For parallel installation and operation, please check

Appendix I.

1. LED indicator bars

2. Power on switch

3. Touchpad function keys and LCD

4. Dry contact port and reserved rapid shutdown control port

5. Type A USB disk port

6. COM1: External BTS port

7. COM2: BMS port

8. COM3: RS232 port

9. COM4: Reserved GFCI, AFCI detection port

10. PV input 1 & 2

11. Generator input

12. Grid input

13. AC output 1

14. AC output 2

15. Battery input

16. Parallel communication port

17. Parallel current sharing port

INSTALLATION

Unpacking and Inspection

Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. You should

have received the following items inside of package:

Inverter unit Manual software CD RS-232 cable Parallel communication cable Current sharing cable

DC Fuse Cable gland 6+1 pcs PV BOX Screwdriver CT

Preparation

Before connecting all wirings, please take off wiring cover by removing five screws. When removing the

bottom cover, be carefully to remove two cables as shown below.

Mounting the Unit

Consider the following points before selecting where to install:

Do not mount the inverter on flammable construction materials.

Mount on a solid surface

Install this inverter at eye level in order to allow the LCD display to be

read at all times.

The ambient temperature should be between 0°C and 55°C to ensure

optimal operation.

The recommended installation position is to be adhered to the wall

vertically.

Be sure to keep other objects and surfaces as shown in the right

diagram to guarantee sufficient heat dissipation and to have enough

space for removing wires.

SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY.

Install the unit by screwing four screws. It’s recommended to use M4 or M5 screws.

Battery Connection

CAUTION: For safety operation and regulation compliance, it’s requested to install a separate DC over-current

protector or disconnect device between battery and inverter. It may not be requested to have a disconnect

device in some applications, however, it’s still requested to have over-current protection installed. Please refer

to typical amperage in below table as required fuse or breaker size.

WARNING! All wiring must be performed by a qualified personnel.

WARNING! It’s very important for system safety and efficient operation to use

appropriate cable for battery connection. To reduce risk of injury, please use the

proper recommended cable and terminal size as below.

Recommended battery cable and terminal size:

Typical

Amperage

Battery

capacity

Wire Size

Cable

mm2

Ring Terminal

Torque

value

Dimensions

D (mm)

L (mm)

228A

250AH

1*4/0AWG

8.4

5 Nm

Please follow below steps to implement battery connection:

1. Assemble battery ring terminal based on recommended battery cable and terminal size.

2. Fix two cable glands into positive and negative terminals.

3. Insert the ring terminal of battery cable flatly into battery connector of inverter and make sure the nuts are

tightened with torque of 5 Nm. Make sure polarity at both the battery and the inverter/charge is correctly

connected and ring terminals are tightly screwed to the battery terminals.

WARNING: Shock Hazard

Installation must be performed with care due to high battery voltage in series.

CAUTION!! Do not place anything between the flat part of the inverter terminal and the ring

terminal. Otherwise, overheating may occur.

CAUTION!! Do not apply anti-oxidant substance on the terminals before terminals are connected

tightly.

CAUTION!! Before making the final DC connection or closing DC breaker/disconnector, be sure

positive (+) must be connected to positive (+) and negative (-) must be connected to negative

(-).

Ring terminal:

AC Input/Output Connection

CAUTION!! Before connecting to AC input power source, please install a separate AC breaker between

inverter and AC input power source. This will ensure the inverter can be securely disconnected during

maintenance and fully protected from over current of AC input.

CAUTION!! There are two terminal blocks with “IN” and “OUT” markings. Please do NOT mis-connect input

and output connectors.

WARNING! All wiring must be performed by a qualified personnel.

WARNING! It's very important for system safety and efficient operation to use appropriate cable for AC

input connection. To reduce risk of injury, please use the proper recommended cable size as below.

Suggested cable requirement for AC wires

Gauge

Torque Value

8 AWG

1.4~ 1.6Nm

Please follow below steps to implement AC input/output connection:

1. Before making AC input/output connection, be sure to open DC protector or disconnector first.

2. Remove insulation sleeve 10mm for eight conductors. And shorten phase L and neutral conductor N 3mm

3. Install three cable glands on input and output sides.

4. Insert AC input wires according to polarities indicated on terminal block and tighten the terminal screws.

Be sure to connect PE protective conductor ( ) first.

→Ground (yellow-green)

L1→LINE (brown or black)

N1→Neutral (blue)

L2→Generator (brown or black)

N2→Neutral (blue)

WARNING:

Be sure that AC power source is disconnected before attempting to hardwire it to the unit.

5. Then, insert AC output wires according to polarities indicated on terminal block and tighten terminal

screws. Be sure to connect PE protective conductor ( ) first.

→Ground (yellow-green)

L1→LINE (brown or black)

N1→Neutral (blue)

L2→LINE (brown or black)

N2→Neutral (blue)

6. Make sure the wires are securely connected.

CAUTION: Important

Be sure to connect AC wires with correct polarity. If L and N wires are connected reversely, it may cause

utility short-circuited when these inverters are worked in parallel operation.

CAUTION: Appliances such as air conditioner requires at least 2~3 minutes to restart because it’s required

to have enough time to balance refrigerant gas inside of circuits. If a power shortage occurs and recovers

in a short time, it will cause damage to your connected appliances. To prevent this kind of damage, please

check manufacturer of air conditioner if it’s equipped with time-delay function before installation. Otherwise,

this inverter/charger will be trigger overload fault and cut off output to protect your appliance but sometimes

it still causes internal damage to the air conditioner.

PV Connection

CAUTION: Before connecting to PV modules, please install separately DC circuit breakers between inverter

and PV modules.

NOTE1: Please use 600VDC/30A circuit breaker on each PV input.

NOTE2: The overvoltage category of the PV input is II.

Please follow the steps below to implement PV module connection:

Step 1: Remove the cover plate from the PV input port

Step 2: Install GLAND BUSHING on the PV BOX first and assemble it on the system

Step 3: Confirm the positive and negative marks on the terminal to avoid wrong installation

Prepare the cable and follow the connector assembly process:

Step 4: Check correct polarity of connection cable from PV modules and PV input connectors. Then, connect

positive pole (+) of connection cable to positive pole (+) of PV input connector. Connect negative pole (-) of

connection cable to negative pole (-) of PV input connector.

WARNING! For safety and efficiency, it's very important to use appropriate cables for PV module connection.

To reduce risk of injury, please use the proper cable size as recommended below.

Conductor cross-section (mm2)

AWG no.

4~6

10~12

CAUTION: Never directly touch the terminals of inverter. It might cause lethal electric shock.

CAUTION: Keep the cover plate installed if system do not configure with PV panels.

CAUTION: Exceeding the maximum input voltage can destroy the unit!! Check the system before wire connection.

WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable: single

crystalline and poly crystalline with class A-rated and CIGS modules.

To avoid any malfunction, do not connect any PV modules with possible current leakage to the inverter. For

example, grounded PV modules will cause current leakage to the inverter. When using CIGS modules, please

be sure NO grounding.

CAUTION: It’s required to use PV junction box with surge protection. Otherwise, it will cause damage on

inverter when lightning occurs on PV modules.

Strip one cable 8 mm on both end sides and be careful NOT to nick conductors.

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