Thinkpower EPH4KTL User manual



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 

Three Phase Hybrid Inverter

 

  

User Manual

- Installation

-Operation

-Maintenance



Contents







 















 









       



 



 





 



















 











 

 

 

 













 

&)

        

 



心？c



    









 

         



必

怂 

士－



  







        



      



互

  心Caution 

＠ 

心?c



       



 



 一

回一口





      



-------· Com

 

    

妇



乙

|妇

扁圆









 

 



问圆



户

「—— 妇

问回



 



 

 

       



 





问回

 





 



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Introduction Installation

1.3.4.1) In the valley level, the grid and PV charge the batteries.(Fig:1.3.4.1)

Fig:1.3.4.1

1.3.4.2) In the flat stage,if the PV is sufficient,the battery can be charged(Fig:1.3.4.2A); if

the PV is insufficient, Priority is for loads(Fig:1.3.4.2B).

Fig:1.3.4.2A Fig:1.3.4.2B

1.3.4.3) In the peak level.

Fig:1.3.4.3(A)(PV is sufficient) Fig:1.3.4.3(B)(PV is insufficient)

SYSTEM EPSGRID FAULTCOM METER

SYSTEM EPS

GRID FAULT

COM METER

SYSTEM EPSGRID FAULTCOM METER

2 Installation

2.1 Unpacking and Checking

On receiving the inverter, please check before installation to make sure all the

components as below are not missing or damaged.

2.2 Unacceptable Installations

Please avoid the following installations, which will damage the system or the inverter.

SYSTEM EPSGRID FAULTCOM METER

Backup Loads

SYSTEM EPSGRID FAULTCOM METER

Battery

Hybrid Inverter(A)

SYSTEM EPS

GRID FAULTCOM METER

Battery

Hybrid Inverter

SYSTEM EPSGRID FAULTCOM METER

Hybrid Inverter(B)

SYSTEM EPSGRID FAULTCOM METER

Hybrid Inverter(B)

Incompatible battery

× ×

Hybrid Inverter(A)

SYSTEM EPSGRID FAULTCOM METER

Hybrid Inverter(A)

SYSTEM EPSGRID FAULTCOM METER

Hybrid Inverter(B)

Solar

SYSTEM EPSGRID FAULTCOM METER

Hybrid Inverter(A) ×

Back-up On-Grid

Generator

SYSTEM EPSGRID FAULTCOM METER

Hybrid Inverter(A) ×

Back-up

Grid

Single PV cannot connect to two inverters.

Back-Up cannot connect in parallel.

On-Grid or Back-Up side cannot connect to

any Generator.

Battery Input cannot connect to Incompatible battery.

Back-Up side cannot connect to Grid.

One Battery Bank cannot connect to multiple inverters.

Inverter×1 Smart Meter×1

with 3 CT

Positive PV

connector×2

AC Connector×2

Positive PV

connector×2

Positive Bat

connector×1

Positive Bat

connector×1

Installation Screw

packet User manual×1

RJ45 Connector×2

2.3 Mounting

2.3.1 Requirements For Mounting

The installation of the inverter should be protected under shelter from direct sunshine or

any bad weather conditions as shown below:

Fig.2.1

The inverter should be installed in a cool & dry place with temperature from -25 to

60 (High ambient temperature will cause the inverter’s power derating).

The inverter LCD should be leveled with eyes and with enough space in the front for

inspection.

The inverter should be installed on a vertical wall or within 15°at most if backwards to the

wall

Fig.2.2

To avoid burning and electric shock, the inverter should be installed beyond reach of

children.

Make sure the installation position does not shake.

MAX 15°

No Direct Sunlight No Exposure to Rain and Snow Direct Sunlight ×Exposure to Rain and Snow ×

Leave enough space around the inverter as shown below:

Fig.2.3

2.3.2 Mounting The Inverter

Step 1: Use the positioning the cardboard as template to drill 4 holes on walls.

Fig.2.4

Step2: Fix the trapping screws to the wall tightly.

Fig.2.5

Position Min.Size(CM)

Front 40CM

Lateral

Top

Bottom

40CM

50CM

40CM

40CM 40CM

50CM

Installation Installation

Installation

Step3: Lift and hang the inverter on the wall,lock the nuts, and fix the machine.

Fig.2.6

2.4 Electrical Connection

2.4.1 System Wiring Diagram

General wiring diagram of EPH series hybrid inverter.

Fig.2.7

2.4.2 Overview Of The Electrical Connecting Part

Fig.2.8

2.4.3 PV Connection

2) The voltage, current and power ratings of the PV strings are within the allowable range

of the inverter. Please refer to the Technical Data Sheet for voltage and current limits

Before connecting PV panels/strings to inverter, please make sure:

1) Use the right PV connectors in the accessory box.

3) Make sure the PV switch of the inverter is in the “OFF” position during wiring.

4) PV strings could not connect to EARTH conductor.

STEP1:

Assemble the PV connectors from the accessory box.(PV cable must be firmly crimped

into connectors)

BMS

OFF PV1

PV2 Battery

Meter

DRED

WIFI

Power Back-up On-Grid

Fig.2.9

STEP2:

Connect the PV connectors to the inverter. There

will be a click sound if connectors are inserted correctly

into PV plugs.

Fig.2.10

Installation

11 12

Installation

2.5 Battery Connection

Fig.2.1

Battery connection diagram

1) Use the right BAT connectors in the accessory box.

2) Choose 4 to 6 mm²(AWG 10) tin-plated cable to connect the battery and the inverter.

3) Make sure battery switch is off and battery nominal voltage meets EPH series

inverter’s specification before connecting battery to inverter.

STEP1:

Assemble the battery connectors from the accessory box.(battery cable must be firmly

crimped into connectors)

Fig.2.12

BMS

CAN

Batery Power

BMS

OFF PV1

PV2 Battery

Meter

DRED

WIFI

Power Back-up On-Grid

STEP2:

Connect the battery connectors to the inverter.

There will be a click sound if connectors

are inserted correctly into battery plugs.

Fig.2.13

STEP3:

Connect the BMS cable between battery and inverter, insert the RJ45 connector with

water-proof cap into the port marked “BMS” on inverter and fasten the cap. Then insert the

other end of the cable into the battery port.

Position Color

1Orange&white

Orange

Green&white

Blue

Signel　Name

485_A2

Blue&white

Green

Brown&white

Brown

485_B2

CAN_H

CAN_L

Fig.2.14

Installation

The similar way to assemble the EPS connector, pin , pin and pin are live lines, pin N

is neutral.

Fig.2.16

STEP2:

Connect the grid connector and the EPS connector

to the inverter. Just follow the markings on the

inverter to connect them correctly.

2.7 Power key and Declara n for EPS Loads

Fig.2.17

The power button on the rear panel is only used for EPS function.

※When mains power does not exist and EPS function is enabled, press and hold for 3

seconds, the inverter will enter backup mode;

※When inverter operates in backup mode, press and hold for 3 seconds, inverter will exit

backup mode;

※When inverter gives an alarm and shutdown in backup mode, press and hold for 3

seconds, inverter will clear alarm.

※Inductive load: a non-frequency conversion air conditioner within 1.5P can be connected

to EPS side. Two or more may cause EPS output unstable.

Do not connect 3-phase inductive load(like motor) without Neutral line to EPS side.

※Capacitive load: Total power <=0.6*nominal power of model.

2.8 Smart meter connection

Please Refer to the connection instructions in the meter

box for connection

2.6 Grid & EPS Connection

Use the AC connectors from accessory box for grid and EPS connection. An external AC

breaker(32A) is needed for on-grid connection to isolate from grid

when necessary .

STEP1:

Note: Pi

Assemble the grid connector. Follow the markings on the

connectors, make sure 3L/N/PE lines are connected correctly.

nconnect to grid phase A, pin c onnect to

phase B and pinL to phase C. Fig.2.15

Operating of the Inverter

15 16

Operating of the Inverter

3 Operating of the Inverter

3.1 LED and LCD Display

The LED indicators are shown as blow:

LED Status Explanation

SYSTEM ON System is powered up

OFF System is not powered up

GRID

ON Grid is normal

OFF Grid loss

FLASH Grid is abnormal

EPS ON Inverter in offline mode, EPS is

active

OFF Inverter is not in offline mode

COM ON WIFI module connected

OFF WIFI module not connected

METER ON Smart meter communication OK

OFF Smart meter communication fail

FAULT

ON Alarm occurred and inverter stop

work

OFF No Alarm

FLASH Alarm occurred but inverter still work

The LCD display shows the detailed information of the inverter

PV12

HIJK

Position Description

A It indicates the power output amount of total and today alternately. Unit: kWh or MWh

B PV panels indicator

C PV1,PV2 panels parameters. Voltage and current are displayed alternately.

D Total PV power

E Battery parameters. Voltage and current are displayed alternately.

FBattery power

G Battery indicator

H SOC of battery

I Current time

Power flow array of battery. When it towards battery, it means charging; when it towards inverter,it

means discharging.

K Default as current date. When an error occurs, fault code will be displayed alternately.

LLoads indicator

MLoads power consumption of each phase

NLoad parameters. Voltage and current of each phase are displayed alternately.

O Power export or import of each phase

P Grid indicator

Q Grid parameters. Voltage and current of each phase are displayed alternately.

R Power flow array of load

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