GOODWE MT G2 Series Grid Tied PV Inverter User Manual

User Manual for GOODWE models including: MT G2 Series Grid Tied PV Inverter, MT G2 Series, Grid Tied PV Inverter, Tied PV Inverter, PV Inverter

EN-MT G2 series User Manual V1.1 340-00717-01

[PDF] EN-MT G2 series User Manual V1.1 340-00717-01 - GoodWe

This manual contains important instructions for the MT series of inverter which must be followed during installation and maintenance. The MT series includes ...

File Info : application/pdf, 25 Pages, 3.75MB

GW MT User Manual-EN

GoodWe Technologies Co., Ltd.

No. 90 Zijin Rd., New District, Suzhou, 215011, China

www.goodwe.com

service@goodwe.com

340-00717-01 Local Contacts

User Manual
Grid-Tied PV Inverter
MT G2 Series
V1.2-2025-02-10

1 Symbols ............................................................................................................................... 01 2 Safety Measures & Warning ....................................................................... 02 3 Product Introduction ......................................................................................... 04
3.1 Intended Usage .......................................................................................................................... 04 3.2 Inverter Overview ....................................................................................................................... 05 3.3 Technical Description ................................................................................................................ 07 3.4 Package ....................................................................................................................................... 08
4 Installation ...................................................................................................................... 09
4.1 Mounting Instructions ............................................................................................................... 09 4.2 Equipment Installation ............................................................................................................. 09 4.3 Electrical Connection ................................................................................................................ 11 4.4 Communication Connection .................................................................................................... 15
5 System Operation .................................................................................................. 20
5.1 LCD Panel and LED ..................................................................................................................... 20 5.2 User Interface Introduction ...................................................................................................... 21 5.3 System Configuration ................................................................................................................ 24 5.4 Wi-Fi Reset & Wi-Fi Reload ......................................................................................................... 28 5.5 Setting Inverter Parameters via App ....................................................................................... 28 5.6 Monitoring via SEMS Portal ..................................................................................................... 29 5.7 Special Adjustable Setpoints ................................................................................................... 29 5.8 Power Limit Setting ................................................................................................................... 29 5.9 Error Message ............................................................................................................................. 31
6 Troubleshooting ....................................................................................................... 32 7 Technical Parameters & Block Diagram .................................... 34
7.1 Technical Parameters ............................................................................................................... 34 7.2 Block Diagram ............................................................................................................................ 41
8 Maintenance .................................................................................................................. 45
8.1 Clearing the FAN ........................................................................................................................ 45 8.2 (Optional) Checking the DC Switch ......................................................................................... 45 8.3 Turn On / Off the Inverter ..................................................................................................... 46 8.4 Checking The Electrical Connection ....................................................................................... 46 8.5 Fuse Replacement ..................................................................................................................... 46

1 Symbols
Failure to observe warnings indicated in this manual may result in injury.

Recyclable materials

Danger of high voltage & electric shock

This side up - The package must always have the arrows point up

Don't touch, hot surface!

No more than four (4) identical packages be stacked on each other.

Special disposal instructions

Fragile

Keep Dry

Refer to operation instructions
Wait at least 5 min after disconnecting the inverter before touching internal parts 5min
CE mark.

2 Safety Measures & Warning
This manual contains important instructions for the MT series of inverter which must be followed during installation and maintenance. The MT series includes four MPPTs and a Three-Phase solar inverter without transformer which consists of GW30KLV-MT / GW35KLV-MT / GW50KLV-MT / GW50KN-MT / GW50KBF-MT / GW50KBF-MT-KR / GW60KBF-MT-KR / GW60KN-MT / GW60KBF-MT /GW75KBF-MT / GW70KHV-MT / GW75K-MT / GW80KHV-MT / GW80K-MT and GW80KBF-MT model types. MT Series have been designed and tested strictly according to international safety regulations. Because these are electrical and electronic components, related safety instructions must be complied with during installation, and commissioning. Improper operation will cause serious harm to: 1. The life and well-being of the operators or third parties. 2. The inverter and other properties that belong to the operator or a third party. The following safety instructions must be read and adhered to prior to any work and at all times.. All detailed work-related safety warnings and notes will be specified at the critical points in corresponding chapters. All installation and electrical work must be performed only by qualified personnel. These personnel must meet the standards as stated below: · Been specially trained and licensed; · Have thoroughly read and understood all related documents. · Already familiar with safety requirements of electrical components and systems. The inverter must be installed and maintained by professionals in compliance with local electrical standards, regulations and the requirements of local power authorities or companies. · Improper handling of the device poses a risk of injury. · Always follow the instructions contained in the manual when moving or positioning the inverter. · The weight of the equipment can cause injuries, serious wounds or bruises if improperly handled. · Please install equipment where it is out of reach of children. · Before installing and maintaining the inverter, it is crucial to make certain that the inverter is not
electrically connected. · Before maintaining the inverter, disconnect the connection between the AC grid and the inverter first. Then disconnect the connection between the DC input and the inverter, the operator should wait at least 5 min after the disconnection in case of electric shock. · All cables must be firmly attached, undamaged, properly insulated, and adequately dimensioned. · The temperature of some parts of the inverter may exceed 60 during operation. To avoid being burned, do not touch the inverter during operation. Let it cool down before touching it.
02

· Without permission, opening of the inverter's front cover is not allowed. Users should not touch / replace any components of the inverter except the DC / AC connectors. The manufacturer assumes no responsibility for any damage to inverter or person caused by improper operations.
· Static electricity may damage electronic components. Appropriate measures must be adopted to prevent such damage to the inverter. Otherwise, the warranty will be voided.
· Ensure that the output voltage of the proposed PV array is lower than the maximum rated input voltage of the inverter; otherwise the inverter may be damaged and the warranty will be annulled.
· If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
· When exposed to sunlight, the PV array will generate very high voltage, which can cause an electrical shock hazard. Please strictly follow the instructions we have provided.
· PV modules should have an IEC61730 class-A rating. · Prohibit inserting or pulling the AC or DC terminals when the inverter is working. Otherwise the
inverter will be destroyed. Only DC connectors provided by the manufacturer are permitted for use. Otherwise the inverter may be damaged and the warranty will be voided. · The default photovoltaic module is not grounded. · If there are more than 3 PV strings on the input side, an additional fuse installation will be
required. · Do not use Y-branch connectors to connect PV strings in parallel to the DC ports of the inverter.
Otherwise it may cause damage to the inverter which will not be covered by GoodWe warranty. The IP65 machine is completely sealed until use. Please install it within one day after unpacking, otherwise please block the unconnected port and do not open it to ensure that the machine is not exposed to water, moisture and dust.
To our inverter product, GOODWE provides a standard manufacturer's warranty, which comes with the product and a prepaid warranty extension solution to our customer. You can find the details about the terms and solutions from the below link. https://en.goodwe.com/warranty.asp
03

3 Product Introduction
3.1 Intended Usage
The MT series is a four-MPPT, three-phase transformer-less grid-connected inverter, which is a crucial unit between the PV string and the utility grid in the PV power system. The inverter is dedicated to converting DC generated by the PV module into AC, which conforms to parameters of the local utility grid, feeding it into the utility grid. The intended usage of the inverter is illustrated in the below figure.
kW.H

The reason why the inverter cannot be connected to the PV module is that the positive or negative terminal should be grounded, except when a transformer is used between the inverter and the grid.

Item A B C
D

Description PV string Inverter
Meter device
Utility grid

Note Monocrystalline silicon, polycrystalline silicon and others. MT Series Meter cupboard with distributed generation system TN-S, TN-C, TN-C-S, TT, IT (different model types with different types of utility grid as below)

MT series GW30KLV-MT / GW35KLV-MT / GW50KLV-MT / GW50KN-MT / GW50KBF-MT-KR / GW60KBF-MT-KR / GW60KN-MT / GW50KBF-MT / GW60KBF-MT / GW75K-MT / GW80K-MT support four different types of grid.

TN-S Transformer
L1 L2 L3 N PE
PE
Inverter

TN-C Transformer
L1 L2 L3 PEN
PE
Inverter

TN-C-S Transformer
L1 L2 L3 N PE
PE
Inverter

TT Transformer
L1 L2 L3 N
PE Inverter

Note: For a TT-grid structure, the RMS voltage between the neutral wire and the earth wire must be less than 20V.
04

GW70KHV-MT / GW80KHV-MT and GW80KBF-MT support the IT grid type. Refer to the below figure.
IT Transformer
L1 L2 L3
PE Inverter

3.2 Inverter Overview
MT series inverter illustration. Note: Image shown here is for reference only; actual product you receive may be different. The number of strings per MPPT is different. Refer to the Technical Specification to check more details.

GW30KLV-MT/GW35KLV-MT/GW50KLV-MT/GW50KN-MT/GW60KN-MT/GW50KBF-MT/GW70KHV-MT/GW50KBF-MT-KR/ GW60KBF-MT-KR

586mm

264

1. PV Input Terminal* 2. RS485 Communication Port 3. AC Output Terminal 4. WiFi Port (Optional) 5. GPRS Port (Optional)

6. Fans 7. DC Switch (Optional) 8. Indicator Light 9. LCD

10. Button 11. Air Outlet 12. External Protection
Grounding Terminal

788 788

GW60KBF-MT/GW75KBF-MT/GW80KBF-MT/GW80KHV-MT/GW75K-MT/GW80K-MT

586

7 45

267 9 10

1. PV Input Terminal 2. RS485 Communication Port 3. AC Output Terminal 4. WiFi Port (Optional)

5. GPRS Port (Optional) 6. Fans 7. DC Switch (Optional)

8. Indicator Light 9. Air Outlet 10. External Protection
Grounding Terminal

Item Name

Description

1 PV Input Terminal

For DC cable connection

2 RS485 Communication Port For RS485 communication cable connection

3 AC Output Terminal

For AC cable connection

4 Wi-Fi Port (Optional)

For Wi-Fi module connection

5 GPRS Port (Optional)

For GPRS module connection

6 Fans

There are six fans to perform controlled force-air cooling.

7 DC Switch (Optional)

During normal operation, it is in the ' on ' state; it can shut down the inverter after it is disconnected from the grid at the AC breaker. The inverters sold in Australia and New Zealand are designed without DC switch

8 Indicator light 9 LCD
10 Button 11 Air Outlet

Display the state of the inverter Inverter operation data viewing and parameter configuration. The LCD is equipped in some models only. For configuration and viewing parameters. Exit of hot air during the inverter operation.

External Protection 12
Grounding Terminal

Second protection earth terminals as specified in EN50178.

3.3 Technical Description
3.3.1 Principle Description PV string voltage is transmitted to DC BUS via BOOST circuit. The MT series is equipped with four MPPTs for four DC inputs to ensure that the maximum power is utilized even in different PV installation configurations. DC / AC converter circuit converts DC power into AC power, which can be fed into the utility grid. Protective circuits are designed to protect both the inverter's safety and human safety. DC switch is integrated for safe disconnection of DC input. The inverter provides a standard interface RS485 and Wi-Fi (optional) for communication. Inverters also provide a running recode data display and parameter configuration via LCD panel or App. Please refer to Chapter 6.2 to check the main block diagram.
3.3.2 Function Description Inverter functions can be grouped as follows: · Conversion function Inverter converts DC power into ac power, which conforms to the grid requirement of its installation country. · Data storage and display Inverter stores the running information and fault records, displaying them on the LCD screen or App. · Parameter configuration Inverter provides various parameter configurations for optional operation. · Communication interface Inverter provides Wi-Fi(optional) and standard RS485 communications interface. · Protection functions >Insulation resistance to ground surveillance >Input voltage monitor >Residual current monitoring unit >Anti-islanding protection >PV array string fault monitoring >DC fuse >DC switch >DC SPD >AC SPD >SPD fault monitoring >AC over current protection >Insulation monitoring
07

3.4 Package
The unit is thoroughly tested and strictly inspected before delivery. Damage may occur during shipping. 1. Check the package for any visible damage upon receipt. 2. Check the inner contents for damage after unpacking. 3. Check the package list below:

Inverter

Wall-mounted Bracket Positive DC Plug[1]

Negative DC Plug[1]

Connecting Terminal

Cover Plate on The Bottom of Inverter

Expansion Bolt

Fixed Screw

6-Pin Terminal

Grounding Screw & Nut

Wi-Fi/GPRS Module

Hexagonal Screw

Quick Installation Instruction

Wi-Fi Configuration Instruction

SolarGo (Inverter Without
LCD)
User's Guide of SolarGo App

(Optional) 4-Pin Terminal
[1]Positive & Negative DC plug GW50KBF-MT-KR / GW60KBF-MT-KR / GW50KBF-MT 8 pairs. GW30KLV-MT / GW50KN-MT 10pairs. GW35KLV-MT / GW60KN-MT / GW60KBF-MT / GW70KHV-MT / GW80KBF-MT 12 pairs. GW50KLV-MT / GW75K-MT / GW80KHV-MT / GW80K-MT 16 pairs.
08

4 Installation
4.1 Mounting Instructions
1. To achieve optimal performance, the ambient temperature should be lower than 45. 2. For easy maintenance, we suggest installing the inverter at eye level. 3. Inverters should not be installed near flammable or explosive items. Strong electro-magnetic
forces should be kept away from installation site. 4. Product label and warning symbols should be placed at a location that is easy to see / read by
the users. 5. Ensure to install the inverter at a place where it is protected from direct sunlight, rain and snow.

Keep away

Keep it clear

from sunlight

Keep dry

of snow

Sun

Rain

Accumulated snow

4.2 Equipment Installation
4.2.1 Select the Installation Location
1. Take the bearing capacity of the wall into account. The wall (e.g. concrete and metal) should be strong enough to hold the weight of the inverter over a long period of time.
2. Install the unit where it is accessible to service or provide an electrical connection. 3. Do not install the unit on the wall containing or housing flammable materials. 4. Ensure the installation location is well ventilated. 5. Inverters should not be installed near flammable or explosive items. Any strong electro-mag-
netic forces should be kept away from the installation site. 6. Install the unit at eye level for convenient operation and maintenance. 7. Install the unit vertically or tilted backwards of no more than 15 ° , no lateral tilt is allowed.Wir-
ing area should face downwards. Horizontal installation requires more than 250mm elevation. 8. Install the inverters far away from noise-sensitive areas, such as the residential area, school,
hospital etc., in order to avoid the noises bothering people nearby.

Max 15°

Over 250mm

To ensure heat dissipation and convenient disassembly, the minimum clearance around the inverter should not be less than the following values:

200mm

1000mm

1200mm

500mm

1000mm

500mm

The upward part ------------ 200mm The downward part -------- 500mm The front part ---------------- 500mm Both sides ------------------- 1000mm Interval----------------------- 1200mm

4.2.2 Transport And Mounting Precedure 1. Two operators are required when moving the inverter to hold the handle and arm-brace
respectively. 2. Use the wall-mounted bracket as a template and drill 6 holes on the wall: 13 mm diameter and
65 mm deep. 3. Fix the wall-mounted bracket on the wall with six expansion bolts from the accessory bag. 4. Carry the inverter with the handles on both sides of the inverter. 5. Place the inverter on the wall-mounted bracket as illustrated.

Backboard Installation Expansion Pipe
Nut

333 166.5

415

194 388

4.2.3 Schematic of Cover Dismantling and Installation Steps

1. Dismantle the downside cover. (Tool: external hexagonal screwdriver)

2. Electrical installation.

3. Assemble bottom-side cover. (Tool: hex button. Twisting Force: 2 N.m)

4. Assemble downside cover. (Material: M5 inner-hexagon screws. Tool: hex button)

4.3 Electrical Connection
4.3.1 Connection to Grid (AC Side Connection) 1. Measure the voltage and frequency of grid-connected access point, and ensure it is in
accordance with the grid-connected standard of the inverter. 2. It is recommended to add a breaker or fuse to the AC side. The specification should be more
than 1.25 times rating of the AC output current. 3. The PE line of the inverter should be connected to the earth, ensure that the impedance
between the neutral wire and earth wire is less than 10 . 4. Disconnect the breaker or fuse between the inverter and the utility. 5. Connect the inverter to the grid. The wiring installation method on the AC output side is
shown as below 6. Fix (Torque: 6-8 N.m) the connector of the AC cable to the corresponding terminals.
11

7. Neutral conductor shall be blue; line conductor shall be black or brown (preferred); protective earth bonding line shall be yellow-green.
8. The AC line construction shall be such that if the cord should slip from its anchorage, placing a strain on conductors, the protective earthing conductor will be the last to take the strain. Ensure the PE line is longer than L and N.

L±3

L1 ----- Live Wire 1

L2 ----- Live Wire 2

L3 ----- Live Wire 3

N ----- Neutral Wire

----- Earth Wire

Connect the line to the terminal Tighten the nut Tighten the screws

Note: It is not necessary to connect Neutral wire to the inverter of GW30KLV-MT / GW35KLV-MT / GW50KN-MT / GW60KN-MT / GW75K-MT / GW80K-MT products. Please select Delta grid on the panel or SolarGo App, otherwise connect neutral wire to them. Do not connect the neutral wire to the inverter of GW70KHV-MT, GW80KHV-MT and GW80KBF-MT products.
AC cable illustration :

B Annealed copper wire

Grade A B C

Description O.D Section area of conduction material Length of bare wire

Value 30~38mm 25~95mm² According to the terminal length

4.3.2 AC Circuit Breaker and Residual Current Protection Device An independent three or four pole circuit-breakers for each inverter must be installed at the output side to ensure that the inverter can be safely disconnected from the grid. The output current of GW30KLV-MT / GW50KN-MT is 80A. Thus we recommend that the nominal current of the AC breaker be 100 A. The output current of GW35KLV-MT / GW50KBF-MT / GW50KBF-MT-KR / GW60KN-MT / GW60KBF-MT / GW60KBF-MT-KR / GW70KHV-MT / GW80KHV-MT and GW80KBF-MT is 90A. Thus, we recommend that the nominal current of the AC breaker be 120A.
12

The output current of GW50KLV-MT / GW50KLV-MT / GW80K-MT is 133A. Thus, we recommend that the nominal current of the AC breaker should be more than 160A.
Note: It is not allowed for several inverter to use the same circuit breaker. Connecting loads between the inverter and circuit breaker is also not allowed
Select and Install RCD depending on local laws and regulations.Type A RCDs (Residual Current Monitoring Device) can be connected to the outside of the inverter for protection when the DC component of the leakage current exceeds the limit value. The following RCDs are for reference:

Inverter model
GW30KLV-MT, GW35KLV-MT, GW50KLV-MT, GW50KN-MT, GW60KN-MT, GW50KBF-MT, GW60KBF-MT, GW75KBF-MT, GW80KBF-MT, GW70KHV-MT, GW80KHV-MT, GW75K-MT, GW80K-MT, GW50KBF-MT-KR, GW60KBF-MT-KR

Recommended RCD specifications 500mA

4.3.3 Earth Terminal Connection The inverter is equipped with an earth terminal, per the requirement of EN 50178. All non-current carrying exposed metal parts of the equipment and other enclosures of the PV power system must be grounded. Please connect 'PE' cable to ground. 1. Strip the wire insulation sheet to a suitable length using a wire stripper, illustrated below.

L2=L1 + (1~2mm)

Section area of AC cable (S)

Section area of Note PE cable

S > 16mm2 S 35mm2 S > 35mm2

16mm² 16mm² S/2

Only applicable when the material of PE wire and L wire is the same. If the material is different, please select according to the equivalent resistance of the PE wire.

2. Insert the stripped wire into the terminal and compress it tightly by crimping pliers.

3. Fix the earth wire on the machine.

NO. Name

Explanation

A Cold-pressed terminal

B Screw

M8*20

C Yellow and green line The maximum is 25mm2
C

4. To improve the corrosion resistance of the terminal, we recommended to applying silica gel to the earth terminal for corrosion resistance after the grounding cable assembly is completed.
13

4.3.4 Connecting Inverter to PV Panel
Caution
1. Ensure the DC switch is turned off before connecting PV string to the inverter.
2. Ensure PV string polarity confirms with DC connector. Otherwise, it will cause damage to inverter.
3. When the Max. Input Voltage of the inverter is 1100V, pease make sure that the open circuit voltage of the PV string connected to each MPPT shall not exceed 1100V. When the input voltage is between :1000V and 1100V, the inverter enters the waiting mode. When the voltage returns to 200V-1000V, the inverter will resume normal operation
When the Max. Input Voltage of the inverter is 800V, please make sure that the open circuit voltage of the PV string connected to each MPPT shall not exceed 800V. When the input voltage is between :650V and 800V, the inverter enters the waiting mode. When the voltage returns to 200V-650V, the inverter will resume normal operation
5. Ensure that the maximum short circuit current of each DC input is less than the inverter allowable limit.
6. Do not connect positive or negative poles of PV string to earth (PE terminal). Otherwise, it will destroy the inverter.
7. Positive cable should be red; negative cable should be black.
8. The minimum insulation resistance to ground of the PV panels must exceed 33.3k (R = 1000/30 mA), there is a risk of shock hazard if the requirement of minimum resistance is not met.
9. The MT series has four PV input areas: PV1 input, PV2 input, PV3 input, PV4 input. Each has an MPP tracker. The four PV inputs work independently. Therefore, the four PV inputs can be differ, including different module types, numbers of connecting PV strings and orientation angels of PV module.
There are four types of DC connectors: VACONN, MC4, AMPHENDL H4 and QC4.10 series.

VACONN SERIES

MC4 SERIES

AMPHENOL SERIES

QC4.10 SERIES

Note: The actual DC connector used is as shown in the accessory box. DC cable specification:

Label Description

Value

A External diameter of wire stock

5.9~8.8mm

B Cross-sectional area of conductor material 4~6mm2

C Length of bare wire

About 7mm

The installation method for DC connector.
Positive connector

Inverter side

MC4 & QC4.10

Negative connector DEVALAN & AMPHENOL

Do not crimp wire into the limit buckle.

Please use special tools to do crimping
To better dustproof and waterproof the internal inverter, all DC connectors provided in the accessory bag should be connected to the inverter. If only some of the DC connectors are used, the DC connectors without connection should be blocked with a non-conductive insulator.

Plug with PV waterproof plug
4.3.5 DC Switch The DC switch is designed to be safely disconnected from the DC input if required. The inverter works automatically when the input and output meet the requirements. Rotating the DC switch to the 'OFF' position will immediately cut off the flow of DC current. Rotate the DC switch to the 'ON' position before starting the inverter.
4.4 Communication Connection
Inverter operation data can be transferred by USB, RS485 or WI-FI Module to a PC with monitoring software or to a data logger device ( e.g Ezlogger Pro). USB is only used for service debugging; The RS485 is the standard communication choice for the inverter, and WI-FI module can be used optionally for communication. 4.4.1 USB Connection USB cable must be connected according to the following steps, shown below:
15

1. Open the bottom cover

2. Insert the USB data cable

This function is only for local firmware upgrades and parameter calibrations.
4.4.2 RS485 Communication This function only applies to the inverter with RS485 ports. The RS485 port of the inverter is used to connect the EzLogger Pro, and the total length of connecting cable should not exceed 1000m. Communication lines must be separated from other power lines to prevent interference to the communication. RS485 connections are shown as below.

Internet

Inverter

Router

EzLogger Pro

RS485

The connection steps of RS485 communication of MT series are as follows: Step 1: Find the RS485 terminal and screw out the screw cap.

RS485 RS485

Step 2: Put the cable through the plate, and connect RS485 cable on the 6-pin terminal. Advise to use cable 16AWG-26AWG.

No. Function 1 RS485 B 2 RS485 A 3 Reserved 4 Reserved 5 RS485 B 6 RS485 A

6.5mm 25mm

123456

RS485 Single-hole communication board seal ring

Cable

Lock

The Nut Insulator Screw Cap

Step 3: Connect the terminal to the right position onto the inverter. Note: The terminal of different inverter model may be located in a different place.

120 termination resistor dip switch
Caution
Cable requirements of RS485 communication: Shielded twisted-pair cable or shielded twisted-pair Ethernet cable 120 termination resistor is controlled by dip switch. 'ON' means connected, and 'OFF' means disconnected. The terminal resistance dial switch is selected to 120 . · When A single inverter is in communication, rotate the terminal resistance dial switch to the 'ON' state (The default state is 'OFF') which is next to the RS485 communication port of inverter, so that the RS485 terminal is 120.Then, ensure the shielding layer of communication line
issingle-point grounded. If multiple inverters are in communication, connect all of them in a daisy chain through the
17

RS485 communication cable. For device at the end of the daisy chain, rotate the terminal resistance dial switch to the 'ON' state (The default state is 'OFF'). Then, ensure the shielding layer of communication line is single-point grounded. 4.4.3 Wi-Fi Communication This function is only applicable for Wi-Fi model inverter. Please refer to 'Wi-Fi Configuration Instruction' to complete WiFi configuration. After the configurations are completed, please register on the website: www.goodwe.com. Please refer to Wi-Fi app for specific configuration. The Wi-Fi module installation of MT series are shown as below.
4.4.4 DRED ( Demand response enabling device) DRED function is achieved using the Ezlogger Pro. Please connect the Ezlogger Pro through the RS485 port. Please refer to the Ezlogger Pro manual for detailed DRED connections. You can refer to EzLogger Pro SERIES USER MANUAL. Visit https://en.goodwe.com/Public/Uploads/sersups/GW_EzLogger%20Pro_User%20Manual-EN.pdf to get the user manual. 4.4.5 Remote Shutdown
Step1: Unscrew this plate from the inverter.
18

(Optional) Step2: Ony for Germany. 1. Plug out the 4-pin terminal and dismantle the resistor on it. 2. Plug the wire out; leave the 4-pin terminal for the next step.

Unplug The wire

Step3: Insert the gateway cable through the components as follows: screw cap, one-hole sealing ring, insulation body and sheet-metal parts.

For region except Germany, the 4-Pin Terminal is in the scope of delivery.

No. Function

24V

Shutoff _1

24V

Shutoff _2

6.5mm 25mm

1234

Screw

Nut The Screw Cap Insulator

RS485 Single hole communication board seal ring

Cable

Step4:
1. Connect the terminal to the right position of the inverter.
2. Fasten the waterproof plate to the inverter.

4.5 Precaution For Initial Startup
1. Make sure the AC circuit is connected and AC breaker is turned off. 2. Make sure the DC cable between inverter and PV string is connected, and the PV voltage is
normal. 3. (Optional) Turn on the DC switch, and set safety according to the local regulation. 4. Turn on the AC breaker. Check the inverter work normal.
19

5 System Operation
5.1 LCD Panel and LED
As a human-computer interaction interface, the LCD display panel comprises LED indicators, buttons and adisplay on the front panel of the inverter. The LED interface provides the working status of the inverter. Buttons and LCD are used for configuration and viewing parameters. LCD panel is included in GW30KLV-MT / GW35KLV-MT / GW50KN-MT / GW60KN-MT / GW50KBF-MT / GW70KHV-MT model type.
Enter Up ESC Down
LED only panel is included in: GW50KN-MT / GW50KLV-MT / GW50KBF-MT / GW50KBF-MT-KR / GW60KBF-MT-KR / GW60KN-MT / GW60KBF-MT / GW70KHV-MT / GW75K-MT / GW80KHV-MT / GW80K-MT and GW80KBF-MT.

Green / green /green / red light respectively corresponds to:

Indicator

Status

Explanation ON = Equipment Power-on OFF = Equipment Power-off ON = Inverter is feeding power OFF = Inverter is not feeding power Single slow flash = Self check before grid connects Single flash = Will connect / active ON = Wireless connected / active Blink 1 = Wireless system resetting Blink 2 = Wireless router problem Blink 4 = Wireless server problem Blink = RS485 Connected OFF = Wireless not active ON = Fault occurred OFF = No fault

5.2 User Interface Introduction

E-DAY

999KWh

E-TOTAL

80.00KW 999KWh

Waiting

2019-10-28 11:37:20

Safety code: The number represents the safety serial number Fan icon: The fan icon indicates that the fan is on Power Derating: The output power of the inverter is derating Alarm icon: The alarm icon indicates that the system LVRT function is on LVRT icon: The LVRT icon indicates that the system LVRT function is on Shadow scan: The Shadow icon indicates that the Shadow scan function is on PID icon: The PID icon indicates the existence of the PID module Communication icon: Method of communication: GPRS, Wi-Fi or RS485 Communication information icon: GPRS and Wi-Fi show signal strength; RS485 shows the
communication address. E-Day icon: Daily generation E-Total: Total generation Time and date Real-time power icon Real-time power System status information
5.2.1 Overview of Menu Architecture
The display menu has a total of three levels. Use the 'Up' 'Down' 'Enter' 'ESC' button to operate the menu. The enter button has two operating methods: long-press (greater than 3s) and short-press . In summary, there are 5 buttons total to operate the menu.
Press the 'Enter' / 'ESC' to enter / exit the each level menu, use the 'Up' / 'Down' to select the item and change the parameters, and long press the 'Enter' (greater than 3s) to set the parameters.

First-level Menu Home
Running Info Configuration Adv.Settings
History Info Device Info
First-level menu

Enter ESC

Second-level Menu Language
Date & Time Communication
Safety Grid LVRT Shadow PF Value P [Active] P [Reactive] Password FTY. Reset Grid Type Factory Mode CustomSet ARC Clear ARC Check AFD Func Hour Day Month Year Error Log
Second-level menu

Enter ESC

Third-level Menu Select Language Set Date & Time Select Address
Select Safety Enable/ Disable Grid
Set ON / OFF Set ON / OFF Set Power Factor Set Active Power Set Reactive Power Set New Password Factory Reset Select Grid Type Select Factory Type Set ON / OFF Clear ARC Error ARC Check Enable / Disable Select Time Select Time Select Time Select Time
Third-level menu

5.2.2 First-level Menu
Press 'up' / 'down' to select on the interface of First-level: History, Configuration, Adv.Settings etc. Pressing the Enter button will enter corressponding Second-level menu. Select the item through the 'up' / 'down' in Second-level menu. Press Enter button to enter the project setup menu in the Third-level menu, change the setting contents by pressing the 'up' / 'down', and press the 'Enter' to set the conntents. If the country's safety setting is not selected (shows 'Configure Safety' on display at home page), press any button to enter country's safety setting page.

E-day
999KWh

80.00KW 999KWh

Normal

19-07-18 11:37:20

press ' ' to enter the setup interface

Adv.Settings
LVRT Shadow PF Value P (active)
press ' ' to enter the setup interface

Running info

Grid volt Grid curr Grid Freq

220.0V 220.0V 220.0V 95.6A 95.6A 95.6A 50.00Hz 50.00Hz 50.00Hz

DC volt 1~4 DC curr 1~4 Str curr 1~3 Str curr 4~6 Str curr 7~9 Str curr 10~13

999V 999V 999V 999V 30.1A 30.1A 30.1A 30.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A

press ' ' to enter the setup interface

Hour Day Month Year Error Log

History Info

50Kwh

2019.07.18

press ' ' to enter the setup interface

Configuration
Language Date & Time
Comm Safety
press ' ' to enter the setup interface
Device info
MODELGW50KN-MT VERSION: V1.00.00.04.01.50.LL.N SN8050KMTU173G0001

5.3 System Configuration
5.3.1 Basic Settings Basic settings are mainly used to set the commonly used parameters, including language settings, time settings, communication settings and safety settings .

Configuration
Language Date & Time
Comm Safety
Press ' ' to enter the setup interface

Enter ESC

Configuration

Language Date & Time
Comm Safety

English Portugues(BR) Türkçe

Enter ESC

Press ' '' ' to select menu

Down

Configuration

Language Date & Time
Comm Safety

Time 1329 Date 2019-10-24

Enter ESC

Press ' '' ' to select menu

Down

Configuration

Language Date & Time
Comm Safety

Modbus [001] Substa [097]
WiFi Reset WiFi Reload

Enter ESC

Press ' '' ' to select menu

Down

Configuration

Language Date & Time
Comm Safety

Italy Czech German Danmark

Enter ESC

Press ' '' ' to select menu

Down

Configuration

Grid

Enter

Enable Grid

Disable Grid ESC

Configuration

Language Date & Time
Comm Safety

English Portugues(BR) Türkçe

Press ' '' ' to change language

Configuration

Language Date & Time
Comm Safety

Time 1329 Date 2019-10-24

Press ' '' ' to change value

Configuration

Language Date & Time
Comm Safety

Modbus [001] Substa [097]
WiFi Reset WiFi Reload

Press ' '' ' to change address

Configuration

Language Date & Time
Comm Safety

Italy Czech German Spain

Press ' '' ' to change safety

Configuration

Grid

Enable Grid Disable Grid

Press ' '' ' to select menu

Press ' '' ' to change the operative mode

English Portugues(BR) Türkçe

' '' '

Configuration

Language Date & Time
Comm Safety

Time 0329 Date 2019-10-24

Press ' '' ' to select menu

Configuration

Language Date & Time
Comm Safety

Modbus [001] Substa [097]
WiFi Reset WiFi Reload

Press ' '' ' to select menu

Configuration

Language Date & Time
Comm Safety

Italy Czech German Spain

Press ' '' ' to select menu

Configuration

Grid

Enable Grid Disable Grid

Press ' '' ' to select menu

5.3.2 Advanced Settings Advanced settings are mainly used to set the function parameters of the equipment to running modes. To prevent the device from running abnormally because of improper operation, all advanced-settings items requires a password. Therefore, enter a password so that you can set all the settings in the 'advanced setting' menu. In case the customer forgets the password, all devices have a unique super password and SN binding. Advanced settings items include LVRT settings, Shadow settings, PF value settings, Active power settings, Reactive power settings and password modification settings.
24

Adv.Settings
LVRT Shadow PF Value P [active]

Enter ESC

Adv.Settings

LVRT Shadow PF Value P [active]

Password [0 0 0 0]

Enter ESC

Adv.Settings

LVRT Shadow PF Value P [active]

[ OFF ]

Enter ESC

Adv.Settings

LVRT Shadow PF Value P [active]

[ ON ]

Press ' ' to enter set item

Press ' '' ' to change value

Adv.Settings

ARC Clear ARC Check AFD Func

[DISABLE]

Enter ESC

Adv.Settings

ARC Clear ARC Check AFD Func

[DISABLE]

Press ' ' 3s to save settings

Adv.Settings

ARC Clear ARC Check AFD Func

ARC Check

Press ' '' ' to select menu

Down

Enter ESC

Adv.Settings

ARC Clear ARC Check AFD Func

ARC Check

Press ' '' ' to select menu

Down

Adv.Settings

LVRT Shadow PF Value P [active]

[ OFF ]

Enter ESC

Press ' '' ' to select menu

Down

Adv.Settings

LVRT Shadow PF Value P [active]

Power Factor [ + 0.99 ]

Enter ESC

Press ' '' ' to change state

Adv.Settings

LVRT Shadow PF Value P [active]

[ ON ]

Press ' '' ' to change state

Adv.Settings

LVRT Shadow PF Value P [active]

Power Factor [ + 0.99 ]

Press ' ' 3s to check AFD Func

Press ' '' ' to select menu

Down

Adv.Settings

ARC Clear ARC Check AFD Func

Clear ARC Error

Enter ESC

Adv.Settings

ARC Clear ARC Check AFD Func

Clear ARC Error

Press ' ' 3s to clear ARC Error

Adv.Settings

FacoryMode CustomSet1 CustomSet2 CustomSet3

[ OFF ]

Press ' '' ' to select menu

Down

Enter ESC

Adv.Settings

FacoryMode CustomSet1 CustomSet2 CustomSet3

[ OFF ]

Press ' '' ' to select menu

Down

Adv.Settings

LVRT Shadow PF Value P [active]

Active Power [OFF] 100% Pn [CT 200]

Enter ESC

Press ' '' ' to select menu

Down

Adv.Settings

P [reactive] Password FTY. Reset

Reactive Power +60% Pn

Enter ESC

Press ' '' ' to change state

Adv.Settings

LVRT Shadow PF Value P [active]

Active Power [OFF] 100% Pn [CT 200]

Press ' '' ' to change state

Adv.Settings

P [reactive] Password FTY. Reset

Reactive Power +60% Pn

Press ' '' ' to change state

Adv.Settings

FacoryMode CustomSet1 CustomSet2 CustomSet3

[ OFF ]

Press ' '' ' to select menu

Down

Enter ESC

Adv.Settings

FacoryMode CustomSet1 CustomSet2 CustomSet3

[ OFF ]

Press ' '' ' to select menu

Down

Adv.Settings

P [reactive] Password FTY. Reset

Old Password [ 0 0 0 0]
New Password [ 0 0 0 0]

Enter ESC

Press ' '' ' to change value

Adv.Settings

P [reactive] Password FTY. Reset

Old Password [ 0 0 0 0]
New Password [ 0 0 0 0]

Press ' '' ' to change state

Adv.Settings

FacoryMode CustomSet1 CustomSet2 CustomSet3

[ OFF ]

Press ' '' ' to select menu

Down

Enter ESC

Adv.Settings

FacoryMode CustomSet1 CustomSet2 CustomSet3

[ OFF ]

Press ' '' ' to select menu

Down

Adv.Settings

P [reactive] Password FTY.Reset Grid Type

Factory Reset

Enter ESC

Press ' '' ' to change value

Adv.Settings

P [reactive] Password FTY.Reset Grid Type

Factory Reset

Press ' '' ' to change state

Press ' '' ' to select menu

Down

Press ' '' ' to select menu

Down

Adv.Settings

FactoryMode CustomSet1 CustomSet2 CustomSet3

Normal Mode Factory Mode1 Factory Mode2 Factory Mode3

Enter ESC

Adv.Settings

FactoryMode CustomSet1 CustomSet2 CustomSet3

Normal Mode Factory Mode1 Factory Mode2 Factory Mode3

Down Up

Adv.Settings

P [reactive] Password FTY.Reset Grid Type

Star Grid Delta Grid

Enter ESC

Press ' ' 3s to reset factory data

Adv.Settings

P [reactive] Password FTY.Reset Grid Type

Star Grid Delta Grid

Press ' '' ' to change state

Press ' '' ' to select menu

Press ' '' ' to select the setting item

Press ' '' ' to change the grid type

5.3.3 History Information
The history information mainly includes in the information about the generating capacity of the equipment, the fault record, the power generation information. The power generation information mainly includes in the amount of electricity generation, daily power generation, monthly power generation and annual power generation information.

History info

Hour Day Month Year Error Log

50Kwh
1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1

2019-10-28

0 2 4 6 8 10 12 14 16 18 20 22 24

Press ' ' to enter select menu

Enter ESC

History info

Hour Day Month Year Error Log

50Kwh
1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1

2019-10-28

0 2 4 6 8 10 12 14 16 18 20 22 24

Press ' '' ' to select menu

Down

Enter ESC

History info

Hour Day Month Year Error Log

50Kwh
1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1

2019-10-28

0 2 4 6 8 10 12 14 16 18 20 22 24

Press ' '' ' to select date

History info

1.0

Hour 0.9

0.8

Day

0.7

0.6
Month 0.5

Year

0.4

0.3

Error Log 0.2

0.1

500Kwh

2019-10

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Press ' '' ' to select menu

Down

Enter ESC

History info

1.0

Hour 0.9

0.8

Day

0.7

0.6
Month 0.5

Year

0.4

0.3

Error Log 0.2

0.1

500Kwh

2019-10

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Press ' '' ' to select date

Down

History info

Hour Day Month Year Error Log

15Mwh
1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1

2019

0 1 2 3 4 5 6 7 8 9 9 10 12

Press ' '' ' to select menu

Down

Enter ESC

History info

Hour Day Month Year Error Log

15Mwh
1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1

2019

0 1 2 3 4 5 6 7 8 9 10 11 12

Press ' '' ' to select date

History info

Hour Day Month Year Error Log

15Gwh
1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1

0 1 2 3 4 5 6 7 8 9 9 10 12
Press ' '' ' to select menu

Down Up

Hour Day Month Year Error Log

History info

P01/10

Utility Loss

2019-10-28 13:21:20

Dc Bus High

2019-10-28 13:21:20

Gfci Check Failure 2019-10-28 13:21:20

Utility Loss

2019-10-28 13:21:20

Utility Loss

2019-10-28 13:21:20

Utility Loss

2019-10-28 13:21:20

Utility Loss

2019-10-28 13:21:20

Utility Loss

2019-10-28 13:21:20

Press ' '' ' to select menu

Enter ESC

Hour Day Month Year Error Log

History info

P01/10

Utility Loss

2019-10-28 13:21:20

Dc Bus High

2019-10-28 13:21:20

Gfci Check Failure 2019-10-28 13:21:20

Utility Loss

2019-10-28 13:21:20

Utility Loss

2019-10-28 13:21:20

Utility Loss

2019-10-28 13:21:20

Utility Loss

2019-10-28 13:21:20

Utility Loss

2019-10-28 13:21:20

Press ' '' ' to select page

5.3.4 Operation of Display When Started Up
When the input voltage reaches the inverter's turn-on voltage, the LCD will indicate 'WAITING'. If the grid is accessible, 'Checking xxx Sec' (The time is decided by the grid connection standards from a different country) will appear after 5 s. As it is counting, the inverter is self-checking. When it shows '00Sec', you will hear the voice from the motion of the relay. The LCD will display 'Normal' afterwards. The instant power output will be shown at the left of the LCD.

E-DAY
999KWh

80.00KW

E-TOTAL
999KWh

Waiting

2019-10-28 11:37:20

press ' ' to enter the setup interface

E-DAY
999KWh

0.00KW

E-TOTAL
999KWh

Checking 28 sec

2019-10-28 11:37:20

press ' ' to enter the setup interface

E-DAY
999KWh

0.00KW

E-TOTAL
999KWh

Checking...

2019-10-28 11:37:20

press ' ' to enter the setup interface

E-DAY
999KWh

80.00KW

E-TOTAL
999KWh

Normal

2019-10-28 11:37:20

press ' ' to enter the setup interface

5.3.5 Menu Introduction
When PV panel is feeding power to the inverter, the screen shows the first interface of the first-level menu. The interface displays current state of the system. It shows 'Waiting' when in the initial state; it shows 'Normal' when in the power generation mode. If there is something wrong with the system, an error message will be shown. Please refer to '5.6 Error Message'.
· In the first-llevel menu, the displayed information can be switched via the 'Up' and 'Down' button operation. There are 6 interfaces in total, which are circulatory. The second-level menu can only be selected using the 'Enter' button from the seventh interface.
· In the 'History Info' menu, press 'Enter' and 'Down' to select 'Error Log', press 'Enter' to enter the historical error message interface. Press 'Up' and 'Down' to switch the display page and inquire the historical error message. Press 'ESC' to return to the upper menu.
· In the 'Configuration' menu, select 'Date & Time' to enter the setting interface, Press 'Up' and 'Down' to change the data, short-press 'Enter' to move cursor, long-press 'Enter' to save the settings.
· You must type in the password before entering the Advantage Setting. The inverter's default password is 1111. You can set the parameters and modify the password after this password verification is passed. If you forget your password, please contact after-sales for help.
· In 'Configuration' menu, select 'Language' and press 'Enter' to enter language setting interface, press 'Up' or 'Down' to change language, long-press 'Enter' to save the settings, press 'ESC' to return.
· In the 'History Info' menu, short-press 'Enter' to enter the second-level and third-level menu. In the third-level menu, press 'up' or 'down' to inquire the historical power generation data in Year Mode, Month Mode, Day Mode and Hour Mode. Press 'ESC' to return to upper menu.
· In 'Configuration' menu, choose 'Comm' and press 'Enter' to enter the Modbus address interface. Press 'Up' or 'Down' to set the address, long press 'Enter' to save the address.
This function is used for special requirements, please don't set it arbitrarily.
· In the second-level menu, select 'LVRT'(if LVRT mode has not been turned on), it will show '[OFF]' on the right hand side of the LCD. Then press 'Up' or 'Down' to change the state to '[ON]'. Long press 'Enter' to save the setting. Then the screen will soon display '[ON]' after a while. This means that LVRT mode has been successfully turned on.
This function is used for special requirements, please do not set it arbitrarily.
· In the second-level menu, select 'Shadow'(if shadow mode has not been turned on). It will show '[OFF]' on the right hand side of the LCD. Then press 'Up' or 'Down' to change the state to '[ON]'. Long press 'Enter' to save the setting and the screen will display '[ON]' after a while, so that the Shadow mode has been successfully turned on.
This function is used for special requirements, please do not set it arbitrarily.
· Select 'Safety' in the 'Configuration' menu, then press 'Enter', so that the set safety interface will be shown. Press 'Down' or 'Up' to choose the safety you need and then long press 'Enter'.
27

The chosen safety option will be set. If there is no exact proper country code, please choose '50Hz Grid Default' or '60Hz Grid Default' accordingly.

5.4 Wi-Fi Reset & Wi-Fi Reload

These functions are only available for Wi-Fi model inverters.

1. In the 'Configuration' menu, select 'Wi-Fi Reset' and press 'Enter' for 3 seconds to reset inverter Wi-Fi module. Wait for a while. The operation result will be shown on the display. The function can be applied when the inverter is unable to connect to router or monitor server.

E-day
999KWh

80.00KW 999KWh

Normal

19-07-18 11:37:20

press ' ' to enter the setup interface

Down

Running info

Grid volt Grid curr Grid Freq

220.0V 220.0V 220.0V 95.6A 95.6A 95.6A 50.00Hz 50.00Hz 50.00Hz

DC volt 1~4 DC curr 1~4 Str curr 1~3 Str curr 4~6 Str curr 7~9 Str curr 10~13

999V 999V 999V 999V 30.1A 30.1A 30.1A 30.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A

press ' ' to enter the setup interface

Down

Configuration

Language Date & Time
Comm Safety

Modbus [001] Substa [097]
WiFi Reset WiFi Reload

Enter ESC

Press ' '' ' to select menu

Configuration

Language Date & Time
Comm Safety

Modbus [001] Substa [097]
WiFi Reset WiFi Reload

Press ' '' ' to change address

2. In the 'Configuration' menu, select 'Wi-Fi Reload' at lever 3. Press 'Enter' for 3 seconds. The

initial settings of the Wi-Fi module will be reloaded. Wait for a while. the operation result will be

shown on the display. The function can be applied when inverter is unable to connect to Wi-Fi

modulTe. After Wi-Fi modular is restored to its initial settings, the Wi-Fi module needs to be

reset again.

E-day
999KWh

80.00KW 999KWh

Normal

19-07-18 11:37:20

press ' ' to enter the setup interface

Down

Running info

Grid volt Grid curr Grid Freq

220.0V 220.0V 220.0V 95.6A 95.6A 95.6A 50.00Hz 50.00Hz 50.00Hz

DC volt 1~4 DC curr 1~4 Str curr 1~3 Str curr 4~6 Str curr 7~9 Str curr 10~13

999V 999V 999V 999V 30.1A 30.1A 30.1A 30.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A 10.1A

press ' ' to enter the setup interface

Down

Configuration

Language Date & Time
Comm Safety

Modbus [001] Substa [097]
WiFi Reset WiFi Reload

Enter ESC

Press ' '' ' to select menu

Configuration

Language Date & Time
Comm Safety

Modbus [001] Substa [097]
WiFi Reset WiFi Reload

Press ' '' ' to change address

5.5 Setting Inverter Parameters via App
SolarGo is an application used to communicate with the inverter via Bluetooth module, WiFi module, or GPRS module. Commonly used functions: 1. Check the operating data, software version, alarms of the inverter, etc. 2. Set grid parameters and communication parameters of the inverter. 3. Maintain the equipment. For more details, refer to the SolarGo APP User Manual. Scan the QR code or visit https://en.goodwe.com/Ftp/EN/Downloads/User%20Manual/GW_SolarGo_User%20Manual-EN.pdf to get the user manual.

SolarGo App

SolarGo App User Manual 28

5.6 Monitoring via SEMS Portal
SEMS Portal is an monitoring platform used to manage organizations/users, add plants, and monitor plant status. For more details, refer to the SEMS Portal User Manual. Scan the QR code or visit
https://en.goodwe.com/Ftp/EN/Downloads/User%20Manual/GW_SEMS%20Portal-User%20Manual-EN.pdf to get the user manual.

SEMS Portal App

SEMS Portal Web User Manual

5.7 Special Adjustable Setpoints
NOTE: For the Australian market, to comply with AS/NZS 4777.2:2020, please select from Australia Region A/B/C, please contact your local electricity grid operator on which Region to select. After the safety area setting is completed, some parameters in the inverter system will take effect according to the corresponding safety regulations, such as PU curve, QU curve, trip protection, etc. If you need to change the configuration parameters, please refer to the SolarGo APP user manual.
5.8 Power Limit Setting
Power limit networking scenario (single inverter)

Inverter

Three-phase circuit breaker

GM3000 Grid
Meter

Inverter

RS485+ RS485-

Three-phase circuit breaker

CT CT
CT

GM3000C / HK3000 Meter

Power limit networking scenario (multi inverter)

Grid
L1 L2 L3 N PE

RS485+ RS485-

SEC1000

Ethernet Router

Cloud

Inverter

......

Three-phase circuit breaker

CT CT CT

Meter

Grid
L1 L2 L3 N PE

Set related parameters via SolarGo app to enable export power limit control or output power limit control.

5.9 Error Message
The error message in below diagram will be displayed on the LCD if faults occur.

Error code 01 02 03
07, 25

Error message SPI Failure EEPROM R/W Failure Fac Failure Relay Check Failure

LCD Communication Failure

DC Injection High

14
15 16 17 19 20 21 22 23 30 31, 24 32, 26 Others

Isolation Failure
Vac Failure External Fan Failure PV Over Voltage Over Temperature IFAN Fault DC BUS HIGH Ground I Failure Utility Loss REF 1.5V Failure AC HCT Failure GFCI Failure Device Failure

Description Internal communication failure Memory chip failure Grid Frequency exceed the inverter limit Relay self-checking failure Communication error occurs between LCD DSP and the Master DSP
The DC component of AC current exceed inverter's limit
Insulation Resistance between the ground and the panel is too low Grid voltage exceeds the inverter limit External Failure PV Array voltage exceeds the inverter limit Over temperature on the case Internal FAN Fault BUS voltage is too high Residual current protection Grid disconnection/fault 1.5V reference voltage exceeds the limit AC current sensor failure Leakage current detection circuit Failure Internal Device Failure

6 Troubleshooting
If the Inverter is unable to work properly, please refer to the following instructions before contacting your local service centre. If any problems arise, the red (FAULT) LED indicator on the front panel will light up and the LCD screen will display relevant information. Please refer to the following table for a list of error message and associated solutions.

Type of fault

Troubleshooting

Isolation Failure

1. Check the impedance between Ground and PV (+) & PV (-). The impedance value must be greater than 100 k. Ensure the inverter is earthed.
2. Contact local service office for help if the problem persists.

Ground I Failure

Vac Failure

System Failure

Fac Failure

Utility Loss

1. The ground current is too high. 2. Unplug the inputs from the PV generator and check the peripheral AC
system. 3. When the problem is cleared, reconnect the PV panel and check the Inverter
status. 4. Contact local service office for help if the problem persists.
1. The PV Inverter will automatically restart within 5 minutes if the grid returns to normal.
2. Ensure grid voltage conforms with the specification. 3. Ensure neutral (N) wire and PE wire are connected well. 4. Contact local service office for help if the problem persists.
1. Grid is not connected. 2. Check grid connection cables. 3. Check availability of grid.
1. Not connect to the grid. 2. Check if the power grid is connected to cable. 3. Check the availability of power grid.

PV Over Voltage

1. Check if the PV open circuit voltage is higher or too close to the maximum input voltage or not.
2. If the problem persists when PV voltage is less than the maximum input voltage, contact local service office for help.

Over Temperature

1. The internal temperature is higher than normal value specified. 2. Reduce ambient temperature. 3. Move the inverter to a cool place. 4. If the problem still exists, contact local service office for help.

Type of fault

Relay-Check Failure

DCI Injection High

EEPROM R/W Failure

SCI Failure

SPI Failure

DC BUS High

BUS Unbalance

Inverter Failure

GFCI Failure Ifan Fault

Efan Fault

Afan Fault

No display

Troubleshooting
1. Turn off DC switch of the inverter. 2. Wait untill the inverter's LCD light is off. 3. Turn on the DC switch and ensure it is connected. 4. If the problem persists, contact local service office for help.
1. Turn off the DC switch, take off the DC connector and measure the voltage of the PV array.
2. Plug in the DC connector, and turn on DC switch. 3. If PV array voltage is lower than 250V , please check the configuration of
inverter module. 4. If voltage is higher than 250V , please contact the local office.

Others

Wi-Fi module fail to connect to network

1. If the Wi-Fi module fails to connect to the network after choosing the right router hotspot and entering the right passwords, it is possible that there are special characters in the hotspot's password that are not supported by module. Please modify the password to comprise only Arabic numerals or uppercase / lowercase letters.
2. If the problem persists, contact the local service office for help.

Note: When sunlight is insufficient, the PV Inverter may continuously start up and shut down automatically because of insufficient power generation by the PV panel.
Earth Fault Alarm The inverter complies with IEC62109-2 13.9. When an earth fault occurs, a buzzer in the EzLogger Pro will ring for 1 min, and an LED will be lit for 1 min. The alarm will ring again every half hour unless the fault is resolved. You can refer to EzLogger Pro SERIES USER MANUAL. Visit https://en.goodwe.com/Public/Uploads/sersups/GW_EzLogger%20Pro_User%20Manual-EN.pdf to get the user manual.

7 Technical Parameters & Block Diagram
7.1 Technical Parameters

Technical Data

DC Input Data

Max. PV Power (W)

Max. DC Input Voltage (V)*1

MPPT Range (V)

Starting Voltage (V)

Min. Feed-in Voltage(V)

Nominal DC Input Voltage (V)

Max. Input Current (A)

Max. Short Current (A)

No. of MPP Trackers

No. of Input Strings per Tracker

AC Output Data

Nominal Output Power (W)

208VAC

Max. Output Power (W)

220VAC

240VAC

Max. Output Apparent Power (VA)

Nominal Output Voltage (V)

Nominal Output Frequency (Hz)

Max. Output Current (A)

Output Power Factor

Output THDi (@Nominal Output)

Efficiency

Max. Efficiency

European Efficiency

Protection

PV String Current Monitoring

Anti-islanding Protection

Input Reverse Polarity Protection

Insulation monitoring

DC fuse

Anti-PID Function for Module

DC SPD Protection

AC SPD Protection

Residual Current Monitoring Unit

AC Over Current Protection

AC Short Protection

AC Over Voltage Protection

General Data

Ambient Temperature Range ()

Relative Humidity

Operating Altitude (m

Cooling

Display

Communication

Weight (kg)

Dimension (Width * Height * Depth mm

Protection Degree

Night Self Consumption (W)

Topology

Certifications & Standards

Grid Regulation

Safety Regulation

EMC Regulation

GW30KLV-MT

GW35KLV-MT

GW50KLV-MT

54000 800
200~650 200 210 370
33/33/22/22 41.5/41.5/27.5/27.5
4 3/3/2/2

63000 800
200~650 200 210 370
33/33/33/33 41.5/41.5/41.5/41.5
4 3/3/3/3

65000 800
200~650 200 210 370
44/44/44/44 55/55/55/55
4 4/4/4/4

30000

36000

50000

28800

34500

47300

30000

36000

50000

33000

39900

55000

33000

39900

55000

220, 3L/N/PE or 3L/PE

50/60

133

~1 (Adjustable from 0.8 leading to 0.8 lagging)

<3%

98.7% 98.3%

98.8% 98.5%

98.7% 98.3%

Integrated Integrated Integrated Integrated Integrated Optional IntegratedType II IntegratedType II Integrated Integrated Integrated Integrated

-30~60(60 °C for outdoor unconditioned with solar effects.)

0~100%

4000

Fan Cooling

LCD or WiFi+APP

LED, WiFi+APP

RS485, WiFi(Optional)

RS485, WiFi(Optional) RS485, WiFi, PLC(Optional)

586*788*264

586*788*267

IP65

TransformerlessNon-isolated

Visit homepage to achieve information.

*1When the input voltage is between :650V and 800V, the inverter enters the waiting mode. When the voltage returns to 200V-650V, the inverter will resume normal operation

Technical Data Input Max. PV Power (W) Max. DC Input Voltage (V)*1 MPPT Range (V) Starting Voltage (V) Min. Feed-in Voltage (V) Nominal DC Input Voltage (V) Max. Input Curren per MPPT(A) Max. Short Current per MPPT (A) No. of MPP Trackers No. of Input Strings per Tracke Output Nominal Output Power (W) Max. Output Power (W) Max. Output Apparent Power (VA) Nominal Output Voltage (V) Nominal Output Frequency (Hz) Max. Output Current (A) Output Power Factor Output THDi (@Nominal Output) Efficiency Max. Efficiency European Efficiency Protection PV String Current Monitoring DC fuse Insulation monitoring Residual Current Monitoring Anti-islanding Protection Input Reverse Polarity Protection DC Surge Arrester AC Surge Arrester AC Over Current Protection AC Short Circuit Protection AC Over Voltage Protection Anti-PID Function for Module General Data Ambient Temperature Range ( Relative Humidity Operating Altitude Cooling Display Communication Weight (kg) Dimension W×H×D (mm) Protection Degree Night Self Consumption Topology General Data Grid Regulation Safety Regulation EMC

GW50KN-MT

GW60KN-MT

GW80KBF-MT

65000 1100 200~1000 200 210 620 33/33/22/22 41.5/41.5/27.5/27.5
4 3/3/2/2

80000 1100 200~1000 200 210 620 33/33/33/33 41.5/41.5/41.5/41.5
4 3/3/3/3

104000 1100
200~1000 200 210 800
39/39/39/39 54.8/54.8/54.8/54.8
4 3/3/3/3

50000

60000

80000

5500057500@415ac

66000; 69000@415ac

88000

55000 57500@415ac

66000; 69000@415ac

88000

400, default 3L+N+PE , 3L+PE optional in settings

540,3L/PE

50/60

94.1

~1 (adjustable from 0.8 lagging to 0.8 leading)

<3%

98.7% 98.3%

98.8% 98.5%

99.0% 98.4%

Integrated Integrated Integrated Integrated Integrated Integrated
Type II Type II Integrated Integrated Integrated Optional

-30~60(60 °C for outdoor unconditioned with solar effects.)

0~100% 4000m

Fan Cooling

LCD or APP+Wifi

LED, APP +WiFi

RS485, WiFi or PLC (Optional)

586*788*264 IP65 <1

586*788*267

TransformerlessNon-isolated

Visit homepage to achieve information.

*1When the input voltage is between :1000V and 1100V, the inverter enters the waiting mode. When the voltage returns to 200V-1000V, the inverter will resume normal operation

Technical Data DC Input Data Max. PV Power (W) Max. DC Input Voltage (V)*1 MPPT Range (V) Starting Voltage (V) Min. Feed-in Voltage(V) Nominal DC Input Voltage (V) Max. Input Current (A) Max. Short Current (A) No. of MPP Trackers No. of Input Strings per Tracker AC Output Data Nominal Output Power (W) Max. Output Power (W) [1] Max. Output Apparent Power (VA) [2]
Nominal Output Voltage (V)
Nominal Output Frequency (Hz) Max. Output Current (A) Output Power Factor Output THDi (@Nominal Output) Efficiency Max. Efficiency European Efficiency Protection PV String Current Monitoring Anti-islanding Protection Input Reverse Polarity Protection Insulation monitoring DC fuse DC SPD Protection AC SPD Protection Residual Current Monitoring Unit AC Over Current Protection AC Short Protection AC Over Voltage Protection General Data Ambient Temperature Range () Relative Humidity Operating Altitude (m Cooling Display Communication Weight (kg) Dimension (Width * Height * Depth mm Protection Degree Night Self Consumption (W) Topology Certifications & Standards Grid Regulation Safety Regulation EMC Regulation

GW60KBF-MT

GW75KBF-MT

GW50KBF-MT

80000 1100 200~1000 200 210 620 44/44/44/44 55/55/55/55
4 3/3/3/3

97500 1100 200~1000 200 210 750 44/44/44/44 55/55/55/55
4 3/3/3/3

65000 1100 200~1000 200 210 620 30/30/30/30 37.5/37.5/37.5/37.5
4 2/2/2/2

60000

75000

50000

66000;69000@415Vac

82500*

55000;57500@415Vac

66000;69000@415Vac

82500*

55000;57500@415Vac

400, 3L+N+PE or 3L+PE

500, 3L/PE

400, 3L+N+PE or 3L+PE

50/60

95.3

~1 (Adjustable from 0.8 leading to 0.8 lagging)

<3%

98.8% 98.3%

99.0% 98.4%

98.8% 98.3%

Integrated Integrated Integrated Integrated Integrated
Type II Type II Integrated Integrated Integrated Integrated

-30~60(60 °C for outdoor unconditioned with solar effects.)

0~100%

4000

Fan Cooling

LED or WiFi+APP

LED, LCD (Optional), WiFi+APP

RS485, WiFi or PLC(Optional)

586*788*267

586*788*264

IP65

TransformerlessNon-isolated

Visit homepage to achieve information.

*1When the input voltage is between :1000V and 1100V, the inverter enters the waiting mode. When the voltage returns to 200V-1000V, the inverter will resume normal operation

GW70KHV-MT
91000 1100 200~1000 200 210 750 33/33/33/33 41.5/41.5/41.5/41.5
4

GW80KHV-MT
120000 1100
200~1000 200 210 800
44/44/44/44 55/55/55/55
4

No. of Input Strings per Tracker

3/3/3/3

4/4/4/4

AC Output Data Nominal Output Power (W) Max. Output Power (W) [1] Max. Output Apparent Power (VA) [2]

70000 77000* 77000*

80000 88000* 88000*

Nominal Output Voltage (V)

500, 3L/PE

Nominal Output Frequency (Hz)

50/60

Max. Output Current (A)

94.1

Output Power Factor

~1 (Adjustable from 0.8 leading to 0.8 lagging)

Output THDi (@Nominal Output)

<3%

Efficiency

Max. Efficiency

99.0%

European Efficiency

98.4%

Protection

PV String Current Monitoring

Integrated

Anti-islanding Protection

Integrated

Input Reverse Polarity Protection

Integrated

Insulation monitoring

Integrated

DC fuse

Integrated

Anti-PID Function for Module

Optional

DC SPD Protection

IntegratedType II

AC SPD Protection

IntegratedType II

Residual Current Monitoring Unit

Integrated

AC Over Current Protection

Integrated

AC Short Protection

Integrated

AC Over Voltage Protection

Integrated

General Data

Ambient Temperature Range ()

-30~60(60 °C for outdoor unconditioned with solar effects.)

Relative Humidity

0~100%

Operating Altitude (m

4000

Cooling

Fan Cooling

Display

LED, LCD (Optional), WiFi+APP

LED, WiFi+APP

Communication

RS485, WiFi or PLC(Optional)

Weight (kg)

Dimension (Width * Height * Depth mm

586*788*264

586*788*267

Protection Degree

IP65

Night Self Consumption (W)

Topology

TransformerlessNon-isolated

Certifications & Standards

Grid Regulation

Safety Regulation

Visit homepage to achieve information.

EMC Regulation

*1When the input voltage is between :1000V and 1100V, the inverter enters the waiting mode. When the voltage returns to 200V-1000V, the inverter will resume normal operation

Technical Data

GW75K-MT

GW80K-MT

DC Input Data

Max. PV Power (W)

112500

120000

Max. DC Input Voltage (V)*1

1100

MPPT Range (V)

200~1000

Starting Voltage (V)

200

Min. Feed-in Voltage (V)

210

Nominal DC Input Voltage (V)

600

620

Max. Input Current (A)

44/44/44/44

Max. Short Current (A)

55/55/55/55

No. of MPP Trackers

4/4/4/4 (Standard)

No. of Input Strings per Tracker

3/3/3/3 (Optional,

Support bifacial module)

AC Output Data

Nominal Output Power (W)

75000

80000

Max. Output Power (W) [1]

75000

88000*

Max. Output Apparent Power (VA) [2]

75000

88000*

Nominal Output Voltage (V)

400, 3L+N+PE or 3L+PE

Nominal Output Frequency (Hz)

50/60

Max. Output Current (A)

133

Output Power Factor

~1 (Adjustable from 0.8 leading to 0.8 lagging)

Output THDi (@Nominal Output)

<3%

Efficiency

Max. Efficiency

98.8%

European Efficiency

98.3%

Protection

PV String Current Monitoring

Integrated

Anti-islanding Protection

Integrated

Input Reverse Polarity Protection

Integrated

Insulation monitoring

Integrated

DC fuse

Integrated

Anti-PID Function for Module

Optional

DC SPD Protection

IntegratedType II

AC SPD Protection

IntegratedType II

Residual Current Monitoring Unit

Integrated

Humidity Monitoring

Invegrated

AC Over Current Protection

Integrated

AC Short Protection

Integrated

AC Over Voltage Protection

Integrated

General Data

Ambient Temperature Range ()

-30~60(60 °C for outdoor unconditioned with solar effects.)

Relative Humidity Operating Altitude (m Cooling

0~100% 4000 Smart Fan Cooling

Display

LED, WiFi+APP

Communication

RS485 & WiFi, PLC(Optional)

Weight (kg)

Dimension (Width * Height *Depth mm Protection Degree Night Self Consumption (W)

586*788*267 IP65 <1

Topology

TransformerlessNon-isolated

Certifications & Standards

Grid Regulation

Safety Regulation

Visit homepage to achieve information.

EMC Regulation

*1When the input voltage is between :1000V and 1100V, the inverter enters the waiting mode. When the voltage returns to 200V-1000V, the inverter will resume normal operation

Technical Data Input Max. Input Power (W) Max. Input Voltage (V)*1 MPPT Operating Voltage Range (V) Start-up Voltage (V) Backfeed CurrentA) Nominal Input Voltage (V) Max. Input Current per MPPT (A) Max. Short Circuit Current per MPPT (A) Number of MPPT Number of Strings per MPPT Output Nominal Output Power (W) Max. AC Active Power (W) [1] Max. AC Apparent Power (VA)[2] Nominal Output Voltage (V) Nominal AC Grid Frequency (Hz) Max. Output Current (A) Output Power Factor Max. Total Harmonic Distortion
Max. Output Fault Current (peak and duration) (A) Max. Output Overcurrent ProtectionA Efficiency Max. Efficiency European Efficiency Protection PV String Current Monitoring Anti-islanding Protection DC Insulation Resistance Detection DC fuse Anti-PID Function for Module DC Surge Arrester AC Surge Arrester Residual Current Monitoring Unit AC Overcurrent Protection AC Short Circuit Protection AC Overvoltage Protection General Data Operating Temperature Range ( Relative Humidity Max. Operating Altitude (m) Cooling Method Display Communication Weight (kg) Dimension (Width * Height * Depth mm Ingress Protection Rating Night Self Consumption (W) Topology Certifications & Standards Grid Regulation Safety Regulation EMC Regulation

GW50KBF-MT-KR
65000 1100 200~1000 200
0 620 30 37.5
4 2

GW60KBF-MT-KR
80000 1100 200~1000 200
0 620 30 37.5
4 2

50000

60000

55000

66000

55000

66000

400, 3L/N/PE or 3L/PE

50/60

~1 (Adjustable from 0.8 leading to 0.8 lagging)

180(duration 5us)

<3% 180(duration 5us)

180

98.8% 98.3%

98.8% 98.5%

59kg

Integrated Integrated Integrated Integrated Optional IntegratedType II IntegratedType II Integrated Integrated Integrated Integrated
-30~60 0~100%
4000 Smart Fan Cooling LCD or WiFi+APP RS485 or WiFi or PLC
586*788*264 IP65 <1
Transformerless

64kg

Visit homepage to achieve information.

*1When the input voltage is between :1000V and 1100V, the inverter enters the waiting mode. When the voltage returns to 200V-1000V, the inverter will resume normal operation

Note
Overvoltage Category Definition
Category I: applies to equipment connected to a circuit where measures have been taken to reduce transient overvoltage to a low level.
Category II: applies to equipment not permanently connected to the installation. For example, appliances, portable tools and other plug-connected equipment;
Category III: applies to fixed downstream equipment, including the main distribution board. This includes switchgear and other equipment in an industrial installation;
Category IV: applies to equipment permanently connected at the origin of an installation (upstream of the main distribution board).For example, electricity meters, primary overcurrent protection equipment and other equipment connected directly to outdoor open lines.

Moisture Location Category Definition

Moisture parameters
Temperature Range Humidity Range

3K3 0~+40 5%85%

Level 4K2 -33~+40 15%100%

4K4H -20~+55 4%100%

Environment Category Definition
Outdoor: the ambient air temperature is -20-50. Relative humidity range is 4-100%, applied to PD3.
Indoor unconditioned: the ambient air temperature is -20-50. Relative humidity range is 5- 95%, applied to PD3.
Indoor conditioned: the ambient air temperature is 0-40. Relative humidity range is 5- 85%, applied to PD2.

Pollution Degree Definition
Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The pollution has no influence.
Pollution degree 2: Normally only non-conductive pollution occurs. However, a temporary conductivity occasionally caused by condensation must be expected.
Pollution degree 3: Conductive pollution occurs, or dry, non-conductive pollution becomes conductive because ofcondensation, which is expected.
Pollution degree 4: Persistent conductive pollution occurs. This includes the pollution cause by conductive dust, rain and snow.

7.2 Block Diagram
GW30KLV-MT / GW50KN-MT main circuit.

PV1+ PV1-
PV2+ PV2-
PV3+ PV3-
PV4+ PV4-

DC SPD

SPD

Switch

DC SPD

Input EMI Filter
Input EMI Filter
Input EMI Filter
Input EMI Filter

MPPT Circuit 1
MPPT Circuit 2
MPPT Circuit 3
MPPT Circuit 3

DC / AC Converter
Circuit

LCL Filter

Output EMI Filter

AC Relay

Filter

N PE

AC SPD

GW50KBF-MT / GW50KBF-MT-KR main circuit.

PV1+ PV1-
PV2+ PV2-
PV3+ PV3-
PV4+ PV4-

DC SPD

SPD

Switch

DC SPD

Input EMI Filter
Input EMI Filter
Input EMI Filter
Input EMI Filter

MPPT Circuit 1
MPPT Circuit 2
MPPT Circuit 3
MPPT Circuit 3

DC / AC Converter
Circuit

LCL Filter

Output EMI Filter

AC Relay

Filter

AC SPD

GW35KLV-MT / GW60KN-MT / GW60KBF-MT-KR / GW60KBF-MT main circuit.

PV1+ PV1-
PV2+ PV2-
PV3+ PV3-
PV4+ PV4-

DC SPD

SPD

Switch

DC SPD

Input EMI Filter
Input EMI Filter
Input EMI Filter
Input EMI Filter

MPPT Circuit 1
MPPT Circuit 2
MPPT Circuit 3
MPPT Circuit 3

DC / AC Converter
Circuit

LCL Filter

Output EMI Filter

AC Relay

Filter

AC SPD

GW70KHV-MT / GW80KBF-MT main circuit.

PV1+ PV1-
PV2+ PV2-
PV3+ PV3-
PV4+ PV4-

DC SPD

SPD

Switch

DC SPD

Input EMI Filter
Input EMI Filter
Input EMI Filter
Input EMI Filter

MPPT Circuit 1
MPPT Circuit 2
MPPT Circuit 3
MPPT Circuit 4

DC / AC Converter
Circuit

LC Filter

Output EMI Filter

AC Relay

Filter

AC SPD

GW80KHV-MT main circuit.

PV1+ PV1PV2+ PV2PV3+ PV3PV4+ PV4-

DC SPD

SPD
Switch

DC SPD

Input EMI Filter
Input EMI Filter
Input EMI Filter
Input EMI Filter

MPPT Circuit 1
MPPT Circuit 2
MPPT Circuit 3
MPPT Circuit 4

DC / AC Converter
Circuit

LC Filter

Output EMI Filter

AC Relay

Filter

AC SPD

GW50KLV-MT / GW75KW-MT / GW80K-MT PV3 main circuit.

PV1+ PV1-
PV2+ PV2-
PV3+ PV3-
PV4+ PV4-

DC SPD

SPD

Switch

DC SPD

Input EMI Filter
Input EMI Filter
Input EMI Filter
Input EMI Filter

MPPT Circuit 1
MPPT Circuit 2
MPPT Circuit 3
MPPT Circuit 4

DC / AC Converter
Circuit

LCL Filter

EMI

Filter

AC SPD

AC Relay

GW50KLV-MT / GW75KW-MT / GW80K-MT PV4 main circuit.

PV1+ PV1PV2+ PV2PV3+ PV3PV4+ PV4-

DC SPD

SPD

Switch

DC SPD

Input EMI Filter
Input EMI Filter
Input EMI Filter
Input EMI Filter

MPPT Circuit 1
MPPT Circuit 2
MPPT Circuit 3
MPPT Circuit 4

DC / AC Converter
Circuit

LCL Filter

EMI

Filter

AC SPD

AC Relay

When GW50KN-MT without DC switch, the circuit diagram is as following. For Australia and New Zealand.

PV1+ PV1-
PV2+ PV2-
PV3+ PV3-
PV4+ PV4-

DC EMI Filter DC SPI

MTTP Circuit1

DC EMI Filter DC SPI
DC EMI Filter DC SPI
DC EMI Filter DC SPI

MTTP Circuit2
MTTP Circuit3
MTTP Circuit4

DC/AC Converter

LCL Filter

AC EMI

L3 PE

Filter

ACSPI

AC Isolation Relay

When GW60KN-MT without DC switch, the circuit diagram is as following. For Australia and New Zealand.

PV1+ PV1-
PV2+ PV2-
PV3+ PV3-
PV4+ PV4-

DC EMI Filter DC SPI

MTTP Circuit1

DC EMI Filter
DC SPI

MTTP Circuit2

DC EMI Filter DC SPI
DC EMI Filter
DC SPI

MTTP Circuit3
MTTP Circuit4

DC/AC

LCL

Converter Filter

EMI

Filter

ACSPI AC Isolation Relay

When GW80K-MT is equipped with 3 MPPTs but without DC switch, the circuit diagram is as following. For Australia and New Zealand.

PV1+ PV1-

DC EMI Filter DC SPI

MTTP Circuit1

PV2+ PV2-
PV3+ PV3-
PV4+ PV4-

DC EMI Filter DC SPI
DC EMI Filter DC SPI
DC EMI Filter DC SPI

MTTP Circuit2
MTTP Circuit3
MTTP Circuit4

DC/AC

LCL

Converter Filter

EMI

Filter

ACSPI

AC Isolation Relay

When GW80K-MT is equipped with 4 MPPTs but without DC switch, the circuit diagram is as following. For Australia and New Zealand.

PV1+ PV1PV2+ PV2-
PV3+ PV3PV4+ PV4-

DC EMI Filter DC SPI

MTTP Circuit1

DC EMI Filter
DC SPI

MTTP Circuit2

DC EMI Filter DC SPI
DC EMI Filter
DC SPI

MTTP Circuit3
MTTP Circuit4

DC/AC Converter

LCL Filter

AC EMI

L3 N

Filter

ACSPI

AC Isolation Relay

8 Maintenance
Regular maintenance ensures a long operating life and optimal efficiency of the entire PV plant. Caution: Before maintenance, please first disconnect the AC breaker. Then disconnect the DC breaker. Wait 5 min until the residual voltage has been released.
8.1 Clearing The FAN
The MT series inverter is equipped with three fans on its left side. The fan intakes and handle covers should be cleaned yearly using a vacuum cleaner. For more thorough cleaning, completely remove the fans. 1. Disconnect the AC breaker first. Then, disconnect the DC breaker. 2. Wait 5 min until the residual voltage has been released, and the fans are no longer running. 3. Disassemble the fans (Refer to the below figure).
· Loosen the five screws using a crosshead screwdriver. Then, slowly remove the fans out of the cabinet about 50mm. · Open the lockers of the three fan connectors and remove them from housing. Then uninstall the fans. 4. Clean the ventilation grid and the fans with a soft brush, or compressed air. 5. Reinstall the fans into the cabinet.
8.2 (Optional) Checking the DC switch
DC switch does not require any maintenance Although not mandatory, maintenance below is still recommended: · Check the DC switch regularly. · Activate the DC switch 10 times in a row once per year. Operating the switch will clean the switch and will extend its life .
45

8.3 Turn On / Off the Inverter
Boot order: 1. Turn on the breaker on the AC side. 2. (Optional) Turn on the DC switch. 3. Turn on the breaker on the DC side. Note: If there is no switch, only perform steps 1 and 3 (please skip step 2).
Shutdown order: 1. Turn off the breaker on the AC side. 2. (Optional) Turn off the DC switch. 3. Turn off the breaker on the DC side. Note: If there is no switch, only perform steps 1 and 3 (please skip step 2).
8.4 Checking the Electrical Connection
1. Check if the AC or DC wire is loose. 2. Check to ensure the earth wire is reliably grounded. 3. Check if the waterproof covers of the RS485 and USB port are fastened. Note: Maintenance cycle is once every half year.
8.5 Fuse Replacement
If the inverter fuses are broken, replace them quickly. The steps are as follows: 1. Disconnect the circuit breaker on the AC side. 2. Rotate the DC switch to the 'OFF' position. 3. Disconnect the front-end circuit breaker of the PV input terminal or pull out the PV input
terminal. 4. Wait at least 10 min. 5. Open the junction box's cover on the bottom of inverter. 6. Confirm that the fuses are broken. 7. Remove the broken fuses vertically as shown in the
right figure. Do not remove fuses by prying or via similiar methods. 8. Install the same model fuses from the same company to the corresponding fuse holders. 9. Install the junction-box cover on the inverter.
46

References

Adobe PDF library 17.00 Adobe Illustrator 28.0 (Windows)