EACH ENERGY EET18KPro-M1 Series Solar Inverter User Manual
- June 9, 2024
- EACH ENERGY
Table of Contents
EET18KPro-M1 Series Solar Inverter
User Manual
Version: 1-01
Each Energy Technology (Suzhou) Co., Ltd.
www.eachenergy.com
Each Energy Technology (Suzhou) Co., Ltd.
Address: No.8 Building, No. 38 of Beiguandu Road, Yuexi Street, Wuzhong
District, Suzhou, Jiangsu Province, China Tel: +8651266581088 Email:
service@eachenergy.com Web: www.eachenergy.com
Copyright © Each Energy Technology (Suzhou) Co., Ltd.
Copyright © Each Energy Technology (Suzhou) Co., Ltd.
Without written permission, any information of this document (partly or
entirely) cannot be extracted, copied or transmitted in any form or by any
means. All right reserved.
Notice
The information in this document is subject to change without notice. Please
adhere to the actual products in case of any discrepancy. Any statements,
description, and recommendations in this manual do not constitute a guarantee
or warranty of any kind, explicitly or implicitly.
Warranty
Warranty terms and conditions can be downloaded from the Internet at
www.eachenergy.com.
Contents
1. About the Manual ……………………………………………………………………………………………….. 3 2. Product
Overview …………………………………………………………………………………………………4 3. Safety
………………………………………………………………………………………………………………….7 4. Mounting
…………………………………………………………………………………………………………….8
4.1 Installation Location …………………………………………………………………………………….8 4.2 Inverter
Mounting ……………………………………………………………………………………….9 5. Electrical Connection
…………………………………………………………………………………………. 11 5.1 DC Side Connection of Inverters
………………………………………………………………….11 5.2 AC Side Connection of Inverters
…………………………………………………………………. 13 5.3 External Grounding Connection
…………………………………………………………………. 14 5.4 Earth Fault Alarm
……………………………………………………………………………………… 14 5.5 Over Current Protection Device
…………………………………………………………………..15 5.6 Communications Connection
…………………………………………………………………….. 16 5.7 Electrical Connection Overview
…………………………………………………………………..17 5.8 Meter and CT Installation (optional)
…………………………………………………………… 17 5.9 Residual Current Device (RCD)
…………………………………………………………………….19 5.10 DRM (Demand Response Mode)
………………………………………………………………. 19 6. Operation
…………………………………………………………………………………………………………. 20 6.1 Start and Stop Inverters
…………………………………………………………………………….. 20 6.2 LCD Operation
………………………………………………………………………………………….. 21
6.2.1 Main Menu ……………………………………………………………………………………..21 6.2.2 Basic Info.
……………………………………………………………………………………….22 6.2.3 Basic Setup
……………………………………………………………………………………..24 6.2.4 Detail Info – Maintenance Personnel
Only …………………………………………. 25 6.2.5 Technical Set Maintenance Personnel Only
…………………………………….. 30 7. Maintenance and Troubleshooting
……………………………………………………………………….42 8. Specification
……………………………………………………………………………………………………… 49
1
2
1. About the Manual
2. Product Overview
The manual describes product information, mounting, installation, operation, maintenance, troubleshooting and specification of Each Energy inverters. Validity The document is valid for the following inverter models: EET15KPro-M1, EET18KPro-M1, EET20KPro-M1, EET22K-M1, EET25K-M1, and EET30K-M1. Target Group The target group of this manual are end users and qualified persons who have knowledge of inverters or skills of inverter installation, maintenance, etc. Only qualified persons are allowed to perform the installation and activities marked in this document under the guidance of safety instructions. Please read this manual carefully before conducting any kind of work on the inverters. Valid Region This manual applies to the operation of Each Energy inverters in Australia, New Zealand, the UK, EU, South America, North America, and Southeast Asia.
2.1 Product Description Each Energy EET15KPro-M1, EET18KPro-M1, EET20KPro-M1, EET22K-M1, EET25K-M1, and EET30K-M1 three phase on-grid inverters convert DC power generated by photovoltaic panel arrays into AC power and feed the converted AC power into utility grid. Product Appearance:
No. Name
1 PV Input Ports
2
3
DC CT
Switch Port
4 Wifi Stick
Logger Port
5 Grounding
Port
6 COM/Met er/DRM
Port
7 AC Output Port
3
4
2.2 Front Panel Operation Panel
2.3 Scope of Delivery
No.
1
2
3
4
56
7
8
Name Communications Power Alarm LCD ESC Up Down Enter
Light
Light Light
LED Light
Light POWER COMMUNICATIONS
ALARM
Status ON OFF ON
OFF
ON OFF
Explanation The inverter is generating power The inverter is not generating power The inverter has been connected to the Internet The inverter has not been connected to the Internet Alarm or fault has been detected The inverter is operating normally
5
No.
Description
Quantity
1
Inverter
1
2
Wall Bracket
1
3
Expansion Screws
4
4
Fastening Screws(M4)
3
Fastening Screws(M3)
4
5
DC Connectors
6 (pairs)
6
AC Connectors
1
7
WiFi/GPRS logger
1
8
Documents
1
6
3. Safety
3.1 Safety Symbols
Symbol
Explanation
DANGER WARNING CAUTION NOTE ELECTRIC SHOCK HOT SURFACE
WAIT
Indicates a high level of risk which, if not avoid, may result in death or
serious injury Indicates a medium level of risk which, if not avoid, may
result in death or serious injury Indicates a low level of risk which, if not
avoid, may result in minor or moderate injury Indicates a situation which, if
not avoided, may result in device damage or property damage Indicates a danger
of electric shock or high voltage
Indicates hot surface, do not touch
Notice of waiting at least 5 minutes before operation
3.2 Safety Instructions and Notice for Use The inverters involved in this
manual comply with applicable safety and technical regulations in design and
test. To avoid personal injury and property damage and to ensure longer
service life of the machines, please read this manual carefully and observe
all safety information during operation. Improper operation may result in risk
of person injury or damage to the machine and to other property, so please
ensure that the following requirements are met before or during operation.
Installation of inverters must be performed by qualified technicians, and be
in compliance with applicable electrical standards, regulations and the
7
requirements of local power authorities. Wear protective equipment for all
work on the machines: helmet,
insulated footwear, gloves, etc. Ensure that unauthorized persons and children
have no access to the
machines. Do not open the housing of the machines at any time. Unauthorized
opening will void guarantee and warranty and may damage the machines. Do not
touch non-insulated parts or cables, disconnect the machines from voltage
sources and guarantee no possible re-connection before working on the machine.
Use measuring devices with a DC input voltage range of 600 V or higher only.
High voltage is present in the live parts and cables inside the product during
operation, wait at least 5 minutes after disconnecting voltage sources. The
temperature of some parts of the inverter may exceed 60 during operation. To
avoid being burnt, do not touch the inverter during operation. Pack inverters
properly during transportation, and do not transport them together with
flammable material. The inverter has not been tested to section 5 of AS/NZS
4777.2:2020 for multiple inverters combinations.
4. Mounting
4.1 Installation Location
WARNING Do not select locations storing flammable material which may cause
fire or explosion!
8
The following points should be considered when selecting an installation
location. The wall bearing inverters shall be able to hold the weight of at
least 4
times of the weight of the inverters. The location shall be convenient for
electrical connection, operation and
maintenance. The ingress protection of the inverter is IP66, so it can be
installed both
indoors and outdoors.
The temperature of the cooling fin may exceed 75 , so select safe
locations. The location must be well ventilated and sheltered from direct
sunlight,
rain or snow. Ensure the visibility of the LED lights and LCD display on the
front panel
of inverters. Install inverters vertically or with a backward tilt within 15
degrees. No
lateral tilt is allowed. If more than one inverter are installed in one
location, a minimum 150
mm clearance should be kept between two inverters and a minimum 300 mm
clearance between inverters and the ground.
Procedures: 1) Ensure that the bracket is horizontal. Mark the position of the drill holes. For brick walls, the position of the holes should suit expansion screws. 2) Use a 10 mm drill bit to drill mounting holes of 40 mm deep. 3) Insert the expansion tubes into holes. 4) Screw the expansion screws into expansion tubes with a cross screwdriver to fix the bracket on the wall.
- Lift up the inverter, and hang it on the mounting bracket securely. 6) Lock the inverter to the mounting bracket with screws.
The Inverter is to be installed in a high traffic area where the fault is
likely to be seen.
4.2 Inverter Mounting
Dimension of the mounting bracket:
Unit: mm
9
NOTE: To protect your hands from scratch, please wear gloves!
10
5. Electrical Connection
5.1 DC Side Connection of Inverters 5.1.1 PV Array Configuration This
inverters are compatible with monocrystalline silicon, polycrystalline
silicon, and thin-film PV panels. The recommended PV array matching the
inverters are listed below: 1.25 × Isc of each PV string PCE(Inverter) DC
input Isc (18A) Voc of each PV string 1100 V.
NOTE: Use DC cables specialized for photovoltaic systems Only!
Assemble DC cables to DC connectors: 1) Strip the insulation layer off the DC
Cable for a little length. 2) Insert the wire into the Crimp Contact and crimp
them with an electrical
crimp-er.
NOTE: PV arrays should be under the protection of over voltage class. For the
grounding of the PV array, the frame of panels should contact the rail, and
the the grounding cable connect the rail.
DANGER ELECTRICAL SHOCK Lethal high voltage will be generated by PV arrays
under sunlight, so please disconnect DC and AC breakers and ensure no
possibility of re-connection before conduct electrical connection!
- Thread the cable through the Cable Gland, insert it into the insulator, and gently pull backward the cable to ensure firm connection. Then screw up the Cable Gland to the Insulator.
DANGER ELECTRICAL SHOCK The inverter cannot be used with functionally earthed
PV Arrays. PV strings should be connected to the inverter through special PV
connectors that are in the scope of delivery.
NOTE: Use only the supplied connector or the connector with IP 65 or above to
guarantee that the protection ingress of the whole inverter is IP66! It is
recommended to use the DC cable of 4 mm2 or 6 mm2.
Install the DC connectors to the Inverter: 1) Turn the Grid Supply Main Switch
OFF. 2) Turn the DC switch OFF. 3) Connect the DC connectors to the Inverter,
small click confirms connection. Please guarantee the correct polarity of the
connection.
WARNING Ensure that the open circuit voltage of PV array is within the max.
input voltage of the inverter!
11
12
WARNING:Do not turn off DC switch directly for accident reverse
connection of DC inputs or any fault of inverters as it may damage inverters.
In that case, turn off the DC switch only when the DC current is below 0.5 A.
5.2 AC Side Connection of Inverters For the sake of safety, it is recommended
to use the AC cable of 6 mm2 for the models of EET15KPro-M1, EET18KPro-M1 and
EET20KPro-M1, 10 mm2 for EET22K-M1 and EET25K-M1, and 16 mm2 for EET30K-M1.
An AC Connector is supplied together with the inverter.
5.3 External Grounding Connection The external grounding port is located beside the AC connection terminal of the inverter. The parameters of designed external protective earthing conductor and screw are as below: M4 screw with the cross-sectional area of 6.1 mm2; AWG8 conductor with the cross-sectional area of 8.4 mm2. Procedures Prepare an OT terminal M4, crimp a grounding cable to the terminal, insert a fastening screw into the OT terminal, insert them to the grounding port on the inverter, and screw them tightly (the torque is 1.1 N.m.).
AC Connector
Procedures: 1) Strip the insulation layer off the AC cable about 25 to 30 mm.
- Insert the stripped wires to the corresponding crimp contacts on the terminal block which is already installed in the AC port of the inverters by the manufacturer, and crimp the wires and crimp contacts together with a crimping plier.
- Thread the AC cable through the Nut and the Housing, and fasten the housing to the inverters with screws.
WARNING: The external grounding connection cannot replace the connection of PE
terminal in AC connection. Ensure that both the external grounding connection
and the PE connection are done properly!
5.4 Earth Fault Alarm The inverters are designed with an earth fault alarm
function. If an earth fault occurs, the inverters will stop generating power,
the red alarm light will be on
13
14
and the LCD will display ISO Out Range’ orPEN No Connect’. In that case,
please refers to Chapter 7 for troubleshooting or contact Each Energy for
help.
5.5 Over Current Protection Device
5.6 Communications Connection 5.6.1 Communications overviews
It is recommended to install a breaker (over current protection device (OCPD)) to protect the AC grid connection conductors. The table below is the recommended parameter of an OCPD ratings for the Inverter.
Inverter
Rated output Rated output
voltage (V)
current (A)
EET15KPro-M1 230/400
21.7
EET18KPro-M1 230/400
26.1
EET20KPro-M1 230/400
29.0
EET22K-M1 230/400
31.9
EET25K-M1 230/400
36.2
EET30K-M1 230/400
43.5
Current for protection device (A) 32 32 40 40 50 63
5.6.2 WiFi/GPRS Stick Installation
Assemble WiFi/GPRS stick to the corresponding port on inverter as shown in the
diagram.
15
16
- Plug the stick to the Wifi port on the inverter 2) Rotate the front operative part of the stick clockwise till the secure connection of the stick More detailed information about communications can be found in corresponding manuals.
Max measuring current for CT: 100A Detail specifications of meter and CT can be found on Each Energy Website and a customer can purchase a suitable meter and CT for inverters on the website.
5.7 Electrical Connection Overview
The following is a diagram of a typical solar system for your reference to
install inverters.
NOTE No need to change any parameter of the meter as it has been preset in the
factory!
Meter and CT connection: For more information about meter and CT connection,
please refer to corresponding manuals on Each Energy website. The following is
schematic diagrams for reference.
5.8 Meter and CT Installation (optional)
A meter and CT(current transformer) can be connect to corresponding ports on
inverter to monitor electricity parameter such as current, voltage, power,
etc. and to realize export power management.
The suggested parameter: Max input current for meter: 80A
17
CT Installation Electrical Diagrams
DANGER ELECTRICAL SHOCK Turn off upSstinregalemPhaansde
MdoewtenrsItnrsetaamllateiolencEtrleiccatlriccaolnDnieacgtriaomn sbefore the
meter installation!
18
5.9 Residual Current Device (RCD)
An internal residual current device is integrated in the inverter to protect
against any potential residual current. If the residual current that exceeds a
set limit is detected, the inverter will stop working, the warning light will
be on and the LCD will display GFCI Device Fault’ orGFCI Out Range’. If you
need to install an external RCD as required by local grid company, we suggest
a Type-A RCD with a threshold current higher than 100 mA.
When a DRED is connected to an inverter, the inverter will receive and
response to the outside signal directly. And the DRM working mode will be
shown in the BASIC INFO in the LCD menu.
6. Operation
6.1 Start and Stop Inverters
5.10 DRM (Demand Response Mode)
6.1.1 Inverter Turning-on
The DRM port is only applicable to installations in Australia and New Zealand
as requires by the standard of AS/NZS 4777.2:2020. The inverter detects and
initiates a response to the demand response modes listed in the following
table.
Mode Functions
DRM 0 Operate the disconnection device DRM 5 Do not generate power DRM 6 Do
not generate at more than 50 % of rated power DRM 7 Do not generate at more
than 75 % of rated power AND absorb reactive
power if capable DRM 8 Increase power generation (subject to constraints from
other active
DRMs)
Ways to connect a DRED (demand response enabling device) to inverters 1)
Assemble a RJ45 connector by connecting a network cable to the RJ45 according
to the international conventional method; 2) Plug the RJ45 connector to the
DRM port of the inverter.
Power rate limit modes as required by AS/NZS 4777.2:2020 is supported in this
inverters. When a demand response mode (except for DRM 0) is asserted or
unasserted the power rate limit will apply to the increase or decrease in
power generation or consumption and the transitions between power levels.
19
The following procedures have to be followed exactly to start an inverter. 1)
Turn on the AC breaker. 2) Turn on the DC Switch. 3) After a compulsory delay
of 30 to 300 seconds, the inverter will start to
work and the POWER light will be on.
WARNING Ensure that the open circuit voltage of PV array is within the max.
input voltage of the inverter!
DANGER ELECTRIC SHOCK High voltage may present, please beware of the risk of
electric shock and take protection precautions! 6.1.2 Inverter Turning-off
The following procedures have to be followed exactly when stop an inverter. 1)
Switch off the AC Main Switch. 2) Wait around 30 seconds for the capacitor to
dissipate energy. Then turn
the DC switch OFF. 3) Be sure that all LED light is OFF (around 1 minute).
20
CAUTION WAIT Beware of the risk of electrical shock! Wait at least 5 minutes before touching the machine although the DC switch has been turn off!
6.2.2 Basic Info.
The table below explains the meaning of information displayed in the sub-menu
of Basic Info.
6.2 LCD Operation
6.2.1 Main Menu
When the inverter has been started, the LCD screen shows operation status and
power of the inverter alternately every 10 seconds (refer to below figure).
You can press UP and DOWN keys to scroll the screens and press ENTER key to
access the main menu. The main menu includes four sub-menus: BASIC INFO, BASIC
SETUP, DETAIL INFO, and TECHNICAL SET.
No.
Displays
1
TOTAL
ENERGY
50000 Kwh
ThisMon: 255Kwh 2 LastMon: 254Kwh
3 TODAY: 52 Kwh PRE_DAY : 54Kwh
DC VOL1: 401.5V
4
DC CUR1: 18.6A
DC VOL2: 408.5V 5 DC CUR2: 18.6A
DC VOL3: 401.5V 6 DC CUR3: 18.6A
Duration
Explanation
10 S Total energy: total energy generated
This Month: total energy generated
10 S
this month Last Month: total energy generated
last month
This Day: total energy generated today
10 S Previous Day: total energy generated
yesterday
DC voltage1: the DC voltage of the PV
10 S
input 1 DC current1: the DC current of the PV
input 1
DC voltage2: the DC voltage of the PV
10 S
input 2 DC current2: the DC current of the PV
input 2
DC voltage3: the DC voltage of the PV
10 S
input 3
DC current3: the DC current of the PV
input 3
21
22
7
DC VOL4: 40DC
CUR4: 18.6A
DC VOL5: 40DC 8 CUR5: 18.6A
DC VOL6: 40DC 9 CUR6: 18.6A
AC VOL A: 230.6V 10 AC CUR A: 38.8A
AC VOL B: 230.6V
11
AC CUR B: 38.8A
12
AC VOL C: 230.6V AC CUR C: 38.8A
13
FREQ A :50.2Hz
POWER A: 1200 W
14
FREQ B :50.2Hz POWER B: 1200 W
15 FREQ C :50.2Hz POWER C: 1200 W
DC voltage4: the DC voltage of the PV
10 S
input 4 DC current4: the DC current of the PV
input 4
DC voltage5: the DC voltage of the PV
10 S
input 5
DC current5: the DC current of the PV
input 5
DC voltage6: the DC voltage of the PV
10 S
input 6 DC current6: the DC current of the PV
input 6
AC voltage A: the voltage of the utility
10 S
grid live line A AC current A: the current of the utility
grid live line A
AC voltage B: the voltage of the utility
10 S
grid live line B AC current B: the current of the utility
grid live line B
AC voltage C: the voltage of the utility
10 S
grid live line C AC current C: the current of the utility
grid live line C
10 S
the frequency of phase A: 50.2 Hz Output Power: 1200 W
10 S
the frequency of phase B: 50.2 Hz Output Power: 1200 W
10 S
the frequency of phase C: 50.2 Hz Output Power: 1200 W
23
16
TOTAL POWER 3600 w
10 S
The total output power 3600W
17 TOTAL RUNTIME: 152 H
10 S Cumulative energy generation time
18 INVERTER SN EE00S005000001A1
10 S
Inverter SN: The SN of the Inverter EE00S005000001A1
19 MODEL:Volt-Watt DRM : DRM5
20 Standard cAusas4777_2A
10 S
Working Mode: Volt-Watt
DRM NO. :
DRM5
This menu indicates the current 10 S country grid code or safety standards
selected
Customers are able to view those info without password including country grid code. cAUSAS4777_2A, cAUSAS4777_2B, cAUSAS4777_2C and cNZS4777_2 represent Australia A, Australia B, Australia C and New Zealand standard respectively. Another standards such as cEN50549_1 and cABNT_NBR_16149 are also included in the menu.
6.2.3 BASIC SETUP
You can set time and address in this sub-menu.
No.
Display
Explanation
1
SET TIME
To set up time
2
SET RS485 ADDR
To set up RS485 address
24
3
To set up language
SET LANGUAGE
6.2.3.1 Time Setting-up When the sub-menu of SET TIME’ is selected, the LCD will display the screen as below. NEXT = ENT OK = ESC 25-01-2022 18:23 Press ENT to move the cursor from left to right, Press UP/DOWN to select a number for a selected digit. Press ESC to save the setting and return to the main menu. 6.2.3.2 Address Setting-up The inverter RS 485 address communicating with a monitoring platform can be set here, the address ranges from01′ to 99′, and the default address is01′.
YES = ENT EXIT = ESC Slave Add: 01
Press UP/DOWN to scroll through numbers for a selected digit, press ENT to
save the setting and return to the main menu, and press ESC to return to the
main menu without saving the setting. 6.2.3.3 Language Setting-up Working
language of the inverter can be set here, and the default language is English.
6.2.4 Detail Info – Maintenance Personnel Only
Select `Detail Info’ from the main menu and the LCD screen will display the
following information:
NEXT = ENT EXIT = ESC Password: 1000
Steps to view the menu of the Detail Info.:
-
Enter the password: The default password is1000. When finishing password entering, press ENT to verify the password. If the password is correct, the sub-menu will be displayed, and if wrong, the LCD will display `Wrong Password’ and return to the previous menu. Press ESC to return to the main menu.
-
Access the sub-menu: After enter the correct password, the sub-menus will be displayed: 1. Operation Info, 2. Fault Info, 3. Flash Version, 4. Warning Info, 5. SW Version, 6. Rated Power, 7. Rated Voltage, 8. Daily Energy, 9. Monthly Energy, 10. Yearly Energy, 11. Export Total, 12. Export Today
Press UP/DOWN to scroll the screen, press ENT to go into the selected sub-menu and press ESC to return to the main menu.
6.2.4.1 Operation Information
This information is for maintenance personnel to get the operation
information, and the information is as below:
No.
Display
Duration
Explanation
1
10 S
This menu indicates:
GFCI RMS: 10 mA
GFCI RMS: Leakage current
ISO : 1.25 k
protection
ISO:
Ground
fault
protection/Insulation Resistance
2 Heatsink
Temp
65.5
10 S
This menu indicates:
The temperature of heat sink of
inverters
3
Inv Inner Temp
45.0
10 S
This menu indicates:
Inverter inner temperature
25
26
4 BusVol:
385.5V
DCI : 0 mA
5
PF:+1.00 ac Pac Limit: 80%
6
BusHalfVol: GridFilter: ON
7
RCD(GFCI):
ON
PVISOGuard: ON
8
AllPVParal:
ON
MPPTShadow:
9 RelayCheck:OFF
DCI Prot : ON
10 Apparent
2000 VA
11 Active 2000 W
12 Reactive 2000 Var
13 Export 4800W
Power Power Power Power
10 S
This menu indicates:
Bus voltage
AC direct component
10 S
This menu indicates:
Power factor ratio
Output power limit
10 S
Half Voltage of Bus
Grid filter grade
The operation info of inverter and part of protection info. can be view after
password has been input and all the info. is included in the above table.
Press UP/DOWN to scroll the screen to view.
NOTE: This operation is for maintenance personnel only. Password is required
to access this part!
6.2.4.2 Fault Info.
10 S
This menu indicates:
When a fault happens, the Alarm Light will be on, and the LCD will display a
Residual current protection
brief description of the fault. Please refer to Chapter 7 for troubleshooting or
Insulation Resistance/Ground
contact after-sales department if a fault info. is displayed.
fault protection
10 S
This menu indicates:
All PV in parallel mode
ACHCT Device Fault
MPPT shadow mode
6.2.4.3 Flash Version
10 S
This menu indicates:
The flash version can be checked here.
Self examination of AC relay
Output direct component
Flash Version
protection
ES 3.0
10 S
This menu indicates the apparent
6.2.4.4 Warning Info.
power
If a adverse condition presents in the inverter, the LCD will display a warning
information. The inverter will work normally with such warning conditions.
10 S
This menu indicates the active
When a warning info. is displayed, please refer to Chapter 7 for
power
troubleshooting.
10 S
This menu indicates the reactive
power
Warning
Info
0x00000400
6.2.4.5 Software Version/Firmware Version
10 S
This menu indicates the power
The software version or firmware version of the inverter is displayed and is
exported to grid
accessible for technicians only.
SW
Version
V01.05
27
28
6.2.4.6 Rated Power The rated power of the inverter is displayed here.
Rated 5KW
Power
6.2.4.7 Rated Voltage The rated voltage of the inverter is displayed here.
Rated 220V
Voltage
6.2.4.8 Daily Energy The energy generated for a specified day can be checked here.
Select
Day
2020-02-22
6.2.4.9 Monthly Energy The energy generated for a specified month can be checked here.
Select 2020-02-22
Month
6.2.4.10 Yearly Energy The energy generated for a specified year can be checked here.
Select
Year
2020-02-22
6.2.4.11 Export Total Total energy exported to grid can be checked here.
Export
Total
500KWh
6.2.4.12 Export Today
29
The energy exported to grid today can be checked here.
Export 500KWh
Total
6.2.5 Technical Set Maintenance Personnel Only
This section is for maintenance personnel only, enter password to access the sub-menu as guided by Chapter 6.2.4. The sub-menu:
No.
Display
1
ALL Set Enable
2
Standard Set
3
Rated VAC Set
Explanation
To enable the setting-up of all functions under the menu of Technical Set To
set up safety standard or country grid code for the inverters
To set up the rated voltage
4
VAC H Limit
5
VAC L Limit
6
FAC H Limit
To set up the high limit of AC output voltage
To set up the low limit of AC output voltage
To set up the high limit of AC output frequency
30
7
FAC L Limit
8
Pmax Limit
9
AC Inst Limit
10
Power Control
11
Standard Func
12
Special Func
13
Set Passwords
14
Factory Reset
15
Adjust Total E
16
Reset Total E
To set up the low limit of AC output frequency To set up the max generation
power To set up the AC instant voltage limit
To set up the power control
To set up the increase power rate limit and decrease power rate limit
To set up special functions
To set up passwords
To restore factory settings
To adjust the total power generated To clear the power generation record
31
17
Export ON/OFF
To enable the grid connection
18
Export Limit
To set up export power limit
Press UP/DOWN to scroll the menu, press ENT to access the sub-menu, and press ESC to return to the previous menu.
NOTE: This part is accessible for qualified and accredited technicians only!
6.2.5.1 All Set Enable This function is to enable all the setting-up functions
under the menu of Technical Set’. Before enabling or setting up any of the function under this menu, please turn theAll Set Enable’ on.
ALL SET Enable ON
6.2.5.2 Standards Set The safety standard for different countries can be
selected in this sub-menu.
Standard
Set
cAusas4777_2A
Australia A, Australia B, Australia C and New Zealand grid codes can be selected here. cAUSAS4777_2A, cAUSAS4777_2B, cAUSAS4777_2C and cNZS4777_2 represent Australia A, Australia B, Australia C and New Zealand standard respectively.
Procedures: Step1: go to All Set Enable’ in the menu ofTECHNICAL SET’ and
turn the status to ON’. Step2: move toStandard Set’ and get inside
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Step3: select the country grid code needed.
Press UP/DOWN to scroll through the national standards, press ENT to confirm
the safety standard, and press ESC to return to the previous menu.
NOTE: This operation is for maintenance personnel only. Password is required to access this part!
6.2.5.3 Rated VAC Set Rated AC output voltage can be set up here. Only when there are more than one type of applicable voltage will this function be used. 6.2.5.4 AC Output Voltage Limit This section is to set up the high and low limit of AC output voltage as permitted by local grid company if the grid voltage is beyond the range specified by national standards.
VAC H Limit Set 270V
VAC L Limit Set 180V
The detailed procedure is described in a separated document named `Voltage Adjustment’. 6.2.5.5 AC Output Frequency Limit This section is to set up the high and low limit of AC output frequency as permitted by local grid company if the grid frequency is beyond the range specified by national standards.
FAC H Limit Set 52Hz
FAC L Limit Set 47Hz
The method to set up the AC output frequency limit is similar to that of AC voltage adjustment. 6.2.5.6 Max Generation Power Setup The max output power can be set up here.
Pmax
Limit
70% of Prated
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The detailed procedure to set up the Max generation power is described in a
separated document named `Power Generation Limit’.
NOTE: The inverter has generation limit control capability which has yet to be
tested according to AS/NZS 4777.2:2020.
6.2.5.7 Power Control
No.
LCD Display
Explanation
1
Q
+60%
2
PF
+80%
3
Q
Set To set up reactive power Set To set up power factor Reset To restore reactive power
YES=ENT EXIT=ESC Are You Sure?
4
PR
Reset To restore power factor
YES=ENT EXIT=ESC Are You Sure ?
Reactive power and power factor can be set up and restored here. The power
quality response modes as required by the standard of AS/NZS 4777.2:2020 can
be activated or controlled under this menu combined with the menu of special
function. The detail procedure will be described in the
34
following part. 6.2.5.8 Standard Function Power increase slope and decrease slope can be set up here.
Pwr
UpSlope Pwr
DownSlope
90%
20%
This part is for the setup of power rate limit modes as required by AS/NZS 4777.2:2020. Soft ramp up after connect, reconnect or soft ramp up/down following a response to frequency disturbance is available in those inverters.
Procedures to set up the gradient of power rate limit: Step1: Go to All Set Enable’ in the menu ofTECHNICAL SET’ and turn the status to ON’. Step2: Go toStandard Func’ and then get inside. Step3: Go to set up the Pwr UpSlope’ orPwr DownSlope’ for the soft ramp up/down
of rated power per minute.
.
NOTE: This operation is for maintenance personnel only. Password
is required to access this part!
6.2.5.9 Special Function Setup
No.
LCD Display
Explanation
1
Set CV MPPT
To set up the constant PV voltage
2
All PV Paral
3
HVRT
To set up the multiple MPPTs parallel mode
To enable the High Voltage Ride Through
4
LVRT
5
1/2BUS Prot
6
DCI Prot
7
GFCI Prot
8
ISO Prot
9
Island Prot
10
Buzzer Enabled
11
Relay Check
12
QU CURVE
13
PF CURVE
To enable the Low Voltage Ride Through To enable the bus mid-point voltage
protection To enable the DC component inspection
To enable the GFCI protection To enable the ISO protection To enable the
island protection To enable the buzzer To enable the relay To enable the QU
curve To enable the PF curve
35
36
14
Q CURVE
15
PU CURVE
16
Shadow MPPT:
To enable the Q curve To enable the PU curve
To enable the shadow MPPT mode
6.2.5.9.1 Island Protection The active anti-islanding protection of the inverters is achieved by shifting the frequency of the inverter away from nominal conditions in the absence of a reference frequency (frequency shift). It is enabled by default. 6.2.5.9.2 Volt-var Response Mode
QU CURVE
ON
The QU Curve is enabled by default. The volt-var response mode changes the reactive power absorbed or supplied by the inverter in response to the voltage at its grid-interactive port. The diagram and table below are the response mode required for the voltvar response according to the standard of AS/NZS 4777.2:2020.
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Region Australia A
Australia B
Australia C
New Zealand
Default Value Voltage
Inverter reactive power level (Q)% of Srated
Voltage
Inverter reactive power level (Q)% of Srated
Voltage
Inverter reactive power level (Q)% of Srated
Voltage
Inverter reactive power level (Q)% of Srated
VV1 207 V
44% supplying
205 V 30% supplying
215 V 44% supplying
207 V 60% supplying
38
VV2 220 V
0%
VV3 240 V
0%
VV4 258 V 60% absorbing
220 V 0%
235 V 255 V 0% 40% absorbing
230 V 0%
240 V 255 V 0% 60% absorbing
220 V 0%
235 V 244 V 0% 60% absorbing
Procedures to enable or disable the Volt-var Response Mode: Step1: go to All Set Enable’ in the menu ofTECHNICAL SET’ and turn the status to ON’. Step2: go toSpecial Func’ and then go to QU Curve’ Step3: enable or disable the Volt-var Response Mode’ by changing the status to ON’ orOFF’.
NOTE: This operation is for maintenance personnel only. Password is required
to access this part!
6.2.5.9.3 Volt-watt Response Mode
PU CURVE ON
The PU Curve is enabled by default. The volt-watt response mode varies the
maximum active power output level of the inverter in response to the voltage
at its grid-interactive port. The diagram below is the response curve required
for the voltwatt response according to the standard of AS/NZS 4777.2:2020.
Australia A Australia B
Voltage
Inverter maximum active power output level (P)% of Srated
Voltage
Inverter maximum active power output level (P)% of Srated
253 V 100%
250 V 100%
Australia C
Voltage
Inverter maximum active power output level (P)% of Srated
253 V 100%
New Zealand
Voltage
Inverter maximum active power output level (P)% of Srated
242 V 100%
260 V 20%
260 V 20%
260 V 20%
250 V 20%
Procedures to enable or disable the Volt-watt Response Mode: Step1: go to All Set Enable’ in the menu ofTECHNICAL SET’ and turn the status to ON’. Step2: go toSpecial Func’ and then go to PU Curve’ Step3: enable or disable the Volt-watt Response Mode’ by changing the status to ON’ orOFF’.
NOTE: This operation is for maintenance personnel only. Password is required to access this part!
6.2.5.9.4 Fixed Power Factor Mode or the Reactive Power Mode
PF CURVE
OFF
Q CURVE
OFF
Region
Default Value
Vw1
Vw2
39
Those modes are disabled by default. The fixed power factor mode or the
reactive power mode may be enabled in some situations by the electrical
distributor to meet local grid requirements, one of these modes shall be
40
enabled if the volt-var mode is disabled. Procedures to set up the Reactive
Power Mode: Step1: go to All Set Enable’ in the menu ofTECHNICAL SET’ and
turn the status to ON’. Step2: go toSpecial Func’, then go to Q Curve’ and enable the Q Curve by change the status toON’ Step3: go to Power Control’ and then go toQ Set’. Step 4: Set up the Reactive Power Mode manually.
Procedures to set up the Fixed Power Factor Mode: Step1: go to All Set Enable’ in the menu ofTECHNICAL SET’ and turn the status to ON’. Step2: go toSpecial Func’, then go to PF Curve’ and enable the PF Curve by change the status toON’ Step3: go to Power Control’ and then go toPF Set’. Step 4:
Set up the Fixed Power Factor manually.
NOTE: This operation is for maintenance personnel only. Password is required
to access this part!
6.2.5.10 Password Set-up The password for Detail Info’ andTechnical Set’
can be reset here.
Password: Confirm:
1000 1000
Press ENT to move the cursor, press UP/DOWN to select a number for a digit selected, and press ENT to confirm the setup after the last digit has been set up. Press ESC to return to previous menu. 6.2.5.11 Factory Reset This function is designed to restore factory defaults.
YES=ENT EXIT=ESC
Are You Sure ?
41
6.2.5.12 Adjust Total E The total energy generated may be cleared or changed after maintenance or translocation, and the previous data can be restored with this function. The total energy generated can be adjusted here.
TOTAL
ENERGY
5700000 KWh
6.2.5.13 Reset Total E The total energy generated record can be cleared here,
and after clearing, the energy generation record will be zero.
YES=ENT EXIT=ESC Are You Sure?
Press ENT to clear the energy generation history and press ESC to cancel the previous operation. 6.2.5.14 Inverter On/Off This function is to control the grid connection or disconnection of inverters.
Inverter ON
ON/OFF
Press UP/DOWN to scroll the menu, press ENT to perform the selection, and press ESC to return to the previous menu. 6.2.5.15 Export Limit
->Soft Limit
Mode: Value:
ON 6000
->Hard Limit
Mode: Value:
ON 6000
->Detection Mode
CT Mode Meter Mode
42
The inverter’s export limit can be achieved together with external devices
such as a CT or meter. There are two types of limit, soft limit and hard
limit. The soft limit means that the limit is controlled by software, and hard
limit means that if the generation exceeds the limit, the inverter will stop
working. Under the detection mode menu, you can choose CT mode or meter mode.
For the normal working of inverters, please use the soft limit only. The hard
limit is used only by compulsory requirement of local grid companies.
7. Maintenance and Troubleshooting
7.1 General Maintenance
The Inverters do not need regular maintenance and just ensure that they are
free of dust, foliage and other dirt.
NOTE: The use of cleaning agents may damage the machine and its components.
Only use a cloth moistened with clear water to clean the machine.
7.2 Disposing of Inverters
If the inverters need to be disposed of, please do that according to the local
regulations for electrical equipment waste, and choose the right site for the
disposing specified for electrical equipment waste according to local
regulations.
7.3 Storage and Transportation
If the inverters will not be installed in a short term, please store them in a
dry room with the ambient temperature between -25~60 . For storage and
transportation, please pack them in the original package if possible and stack
inverters no more than 6 packs.
7.4 Troubleshooting
No.
Events
Explanation
Solutions
1. Check if the input voltage
1
DC Volt Over
High voltage of PV input strings
exceeds the inverter’s upper limit of input voltage
2. Decrease solar panels
quantity in series
DC Over PV current
1. Restart the inverter
exceeds the
2. Decrease solar panels
2
Current Soft
software protection limit
quantity in parallel if it occurs repeatedly
3
DC Over Current
Hard
PV current exceeds the hardware protection limit
1. Restart the inverter 2. Decrease solar panels quantity in parallel if it occurs repeatedly
1. Check if the input voltage
Transient bus
exceeds the inverter’s upper
4
Bus Over Voltage
Soft
voltage exceeds the software protection limit
limit of input voltage 2. If not, restart the inverter 3. If yes, decrease solar panel
quantity in series
43
44
1. Check if the input voltage
5
Bus Over Voltage
Hard
Transient bus voltage exceeds the hardware protection limit
exceeds the inverter’s upper limit of input voltage 2. If not, restart the inverter 3. If yes, decrease solar panel
quantity in series
Transient
6
Over Voltage
Transient over voltage in grid
Restart the inverters
7
Inv Over Current
Soft
Inverter software over current
1. Restart inverters 2. Decrease string in parallel
8
Inv Over Current Hard
Inverter hardware over current
1. Restart inverters 2. Decrease string in parallel
1. Check whether AC circuit
breaker has been triggered off
2. Check AC cables connection
9
Island Protect
Island effect protection
3. Check whether grid is not in service
4. If the above reasons have
been excluded and this fault
still occurs in the LCD screen,
contact the installer
10
Low Temperatu
Low Temperature
Check if the ambient temperature is below normal working temperature of
re Inside Inverters
Inside Inverters
inverters and increase ambient temperature
11
High Temperatu
re Inside Inverters
High temperature inside inverters
1. Check the ventilation of installation environment 2. Avoid direct sunlight
45
Abnormality in
12
Extern Flash
external flash reading and
Restart the inverter
writing
13
Bus Unbalance
Bus Unbalance
Restart the inverter
1. Check if the input voltage is
14
Low bus
too low Low bus voltage 2. If not, restart the inverter
voltage
3. If yes, increase solar panel
quantity in series
15
Over Frequency
Export reduction due to over frequency
Adjust the protection value limit by user-designing function as permitted by grid company
Over
Export reduction 1. Check the ventilation of
16 Temperatu due to over
installation environment
re
temperature
2. Avoid direct sunlight
17
GFCI Device Fault
Fault in current leakage testing device
Restart the inverter or contact the installer
ACHCT 18 Device
Fault
Fault in HCT device on AC side
Restart inverter or contact the installer
19 GFCI Out Range
Current leakage is out of range
Check the AC connection and DC connection, and check internal wire connection
46
20
DCI Out Range
DC component is Restart the inverter or contact
too large
the installer
1. Remove all DC inputs,
21
ISO Out Range
The insulation impedance is too small
reconnect them one by one, and restart the inverter 2. Identify the string that causes the fault and check the
insulation of the string
1. Check the AC breaker
2. Check the connection of AC
No Grid… 22 Pls Turn On No utility grid
AC
plug 3. Check whether the inverter’s L, N, PE line have been connect with the
corresponding grid L, N, E line
correctly
23
Temp is Too High
Temperature is too high
1. Check the ventilation of installation environment 2. Avoid direct sunlight
24
Temp is Too Low
25
PV Over Voltage
Temperature is too low
Over voltage in PV Inputs
Check if the ambient temperature is below normal working temperature of inverters and increase ambient temperature 1. Check if the input voltage exceeds the inverter’s upper limit of input voltage. 2. Decrease solar panel quantity in series
47
1. Wait for the inverter to
recovery
The grid is
2. If the impedance of AC
26
Grid Volt overloaded by Over 110% 10% for over 10
cable is too small, replace it with a larger size cable
minute
3. Adjust the protection value
limit as permitted by the grid
company
1. If the impedance of AC
cable is too small, replace it
27
Grid Volt Grid voltage is Out Range out of range
with a larger size cable 2. Adjust the protection value
limit as permitted by the grid
company
Adjust the protection value
Grid Freq Grid frequency is limit through self-designing
28
Out Range out of range
function as permitted by the
grid company
29
Relay Fault
Fault in grid-connection relay
Restart the inverter or contact the installer
Communication
30
MS Comm Fault
fault between the main CPU and the slave
Restart the inverter or contact the installer
CPU
Power to
31
Grid beyond
Limit
Power exported to Grid exceeds the Hardware Limit
1. Turn on the software limit and set up a software limit that is lower than the hardware limit 2. Turn off the hardware
48
limit if permitted
32
PEN No Connect
Grounding fault as the PE and N line has not been connected well
1. Check the connection of the PE line and the N line 2. Contact the installer
NOTE If any event in the above table is displayed, please turn off the
inverter, wait 5 minutes and then restart the inverter.
8. Specification
49
50
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>