DT/Smart DT SERIES USER MANUAL

DT/Smart DT SERIES USER MANUAL
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Company Wechat
DT/Smart DT SERIES USER MANUAL
GoodWe(China)
GoodWe(Europe)
No.189 Kunlunshan Rd.,SND,
Mürwikerstr. 59
Suzhou, 215163, China
24943 Flensburg Germany
T: +86 512 6239 6771
T: +49 461 5897 0235
service@goodwe.com.cn
europe@goodwe.com.cn
www.goodwe.com.cn
www.goodwe.de
GoodWe(Australia)
GoodWe (Netherlands)
GoodWe(UK)
19 Fairleigh Street, Glenroy,
Zevenwouden 194 ,
93 Caversham Place
VIC, 3046, Australia
3524 CX Utrecht, the Netherlands
Sutton Coldfield B73 6HW
T: +61 3 9324 0559
T: +31 6 1988 6498 +31 6 1784 0429
T: +44 12 1238 0053
australia@goodwe.com.cn
service@goodwe.com.cn
uk@goodwe.com.cn
www.goodwe.de
www.goodwe.com.cn
www.goodwe.com.cn
Note: The contact information above is subject to change without notice. please refer to the company's website
at www.goodwe.com.cn.
350-00014-06
Global Service Hotline:+86 4009-281-333
SOLAR INVERTER
1 Symbols
.. .......... .................................................................. ............ 01
2 Safety and Warning
3 Installation
. ......... .. ....... ......................... ............ 01
3.1 Mounting Instruction ......................... 02
3.2 Overview and Packaging ..................... 02
3.3 Inverter Installation ........................... 03
3.4 Electrical Connection ....... .. .... ............ 05
4 System Operation
4.1 LED Lights ........................................... 12
4.2 User Interface and Controls ..................... 12
4.3 Error Code . ... ........ ....................... ... .... 17
4.4 WiFi Reset & WiFi Reload ....................... 17
5 Troubleshooting
.................................................................... 18
6 Technical Parameters and Block Diagram
6.1 Technical Parameters ............................. 19
6.2 Block Diagram ...................................... 24
7 Maintenance
7.1 Cleaning the Fans ................................. 25
7.2 Checking the DC Switch ......................... 26
8 Certificates
................ ....... ........................................................... 26
1 Symbols
●When exposed to sunlight, the PV array will generate very high voltage which will cause potential danger to people. Please strictly
follow the instruction we provided.
●PV modules should have an IEC61730 class A rating.
Caution! - Failure to observe a warning
indicated in this manual may result in minor
or moderate injury.
Components of the product can be recycled.
Danger of high voltage and electric shock!
This side up - The package must always be
transported, handled and stored in such a
way that the arrows always point upwards.
●If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
●Completely isolate the equipment should : switch off the DC switch, disconnect the DC terminal, and disconnect the AC terminal
or AC breaker.
●Prohibit inserting or pulling the AC and DC terminals when the inverter is working.
●Only DC connectors provided by GoodWe are permitted to use, otherwise the inverter may be damaged and the warranty will be
annulled.
Danger of hot surface!
No more than six (6) identical packages be
stacked on each other.
Product should not be disposed as normal
household waste.
The package/product should be handled
carefully and never be tipped over or
slung.
CE Mark
Keep Dry – The package/product must be
protected from excessive humidity and
must accordingly be stored under cover.
●Person could access to inverter status through mobile phone and computer display please refers to chapter 3.4.4 and 3.4.5. and
error code could be shown not only on inverter LCD display but also mobile phone APP interface.
3 Installation
3.1 Mounting Instruction
● In order to achieve optimal performance, the ambient temperature should be kept lower than 45 °C.
● For the convenience of checking the LCD display and possible maintenance activities, please install the inverter at eye level.
● Inverters should NOT be installed near inflammable or explosive items. Any strong electro-magnetic equipment should be kept
away from installation site.
Signals danger due to electrical shock and indicates the time (5 minutes) to allow after the
inverter has been turned off and disconnected to ensure safety in any installation operation.
● Product label and warning symbol shall be clear to read after installation.
● Please do not install inverter under direct sunlight, rain and snow.
2 Safety and Warning
DT/ Smart DT (hereinafter referred to as SDT) series inverter of Jiangsu GoodWe Power Supply Technology Co.,Ltd. ( hereinafter
Direct Sunlight
referred to as GoodWe ) strictly conforms to related safety rules in design and test. As electric and electronic equipment, Safety
Rain Exposure
Snow Lay up
Regulation shall be followed during installation and maintenance. Improper operation may bring severe damage to the operator, the
third party and other properties. (DT: Dual-MPPT, Three-Phase, covering 09kW/10kW/12kW/15kW/17kW/20kW/25kW; SDT: Smart
Dual-MPPT, Three-Phase, covering 4kW/5kW/6kW.)
●Installation, maintenance and connection of inverters must be performed by qualified personnel, in compliance with local electrical
standards, regulations and the requirements of local power authorities and/or companies.
● To avoid electric shock, DC input and AC output of the inverter must be terminated at least 5 minutes before performing any
installation or maintenance.
3.2 Overview and Packaging
After opening the package, confirm if it is consistent with specification of inverter you purchased.
3.2.1 Inverter Overview
DT Series inverter illustration.
●The temperature of some parts of the inverter may exceed 60OC during operation. To avoid being burnt, do not touch the inverter
during operation. Let it cool before touching it.
● Keep children away from the inverter.
● Without permission, open the front cover of the inverter is not allowed. Users should not touch/replace any of the components
①
②
③ ④
⑤
except for the DC/AC connectors. GOODWE will not bear any consequences caused by unauthorized actions which will lead to
potential injury to people and damage to inverters.
●Static electricity may damage electronic components. Appropriate method must be adopted to prevent such damage to the inverter;
⑧
⑦
otherwise the inverter may be damaged and the warranty will be annulled.
●Ensure 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.
01
1. PV input terminals
2. DC Switch (Optional)
3. USB port
4. RS485 port or
WiFi antenna port
5. AC output terminal
6. LCD display
7. LED lights
8. Buttons
⑥
02
SDT Series inverter illustration.
● Install vertically or tilted backward by max 15°. The device can not be installed with a sideways tilt. The connection area must
point downwards. Refer to Figure 3.3.1-1.
①
②
③
④
⑤
⑦
⑧
⑥
1. PV input terminals
2. DC Switch (Optional)
3. USB port
4. RS485 port or
WiFi antenna port
5. AC output terminal
6. LCD display
7. LED lights
8. Buttons
Max
15°
3.2.2 Package
Figure 3.3.1-1
● In consideration of heat dissipation and convenient dismantlement, the minimum clearances around the inverter should be no less
than the following value:
Inverter×1
Wall-mounted
Bracket×1
200mm
Positive DC Plug*
Negative DC Plug*
AC Terminal X6
500mm
500mm
300mm
User
manual
or
Upward----------200mm
Downward-------500mm
Front--------------300mm
Both sides-------500mm
AC Junction Box
screw X5
AC connector×1
Expansion screw×6
Flat Head Screw×5
User manual×1
500mm
Warranty card×1
Quick Installation
Guide×1
WiFi Connection
Guide
Fast installation
instructions
Warranty
card
Antenna×1
(WiFi model only)
WiFi Connection
Guide×1
(WiFi model only)
*Positive DC Plug: 09~12kW 3 pairs; 15~20kW 4 pairs; 25kW 6 pairs; 4~6kW 2 pairs.
*Negative DC Plug: 09~12kW 3 pairs; 15~20kW 4 pairs; 25kW 6 pairs; 4~6kW 2 pairs.
Figure 3.3.1-2
3.3.2 Mounting Procedure
(1) Use the wall-mounted bracket as a template and drill 6 holes on the wall, 10 mm in diameter and 80 mm deep. The inverter sizes
of DT series please refer to Figure 3.3.2-1, and the size of SDT series refer to Figure 3.3.2-2.
(2) Fix the wall mounting bracket on the wall with six expansion bolts in accessory bag.
(3) Hold the inverter by the groove on it, (DT models please refer to Figure 3.3.2-3, and SDT models refer to Figure 3.3.2-4.)
(4) Place the inverter on the wall-mounted bracket as illustrated in Figure 3.3.2-5、3.3.2-6、3.3.2-7.
3.3 Inverter Installation
3.3.1 Selecting the Installation Position
Installation position should be selected based on the following aspects:
● The installation method and mounting location must be suitable for the inverter's weight and dimensions.
● Mount on a solid surface.
● Select a well ventilated place sheltered from direct sun radiation.
03
04
Installation instruction of VACONN series connector please refer to Figure3.4.1-2.
457
457
228.5
fasten screw cap clockwise
228.5
163.5
104.5 117.5
177
Inverter
400
400
Figure 3.3.2-1
10mm
Figure 3.3.2-2
Figure 3.3.2-3
Figure 3.3.2-4
Pin1 ---- Live Wire 1
Pin2 ---- Neutral Wire
Fastening five screws
Pin3 ---- Live Wire 2
Pin4 ---- Live Wire 3
to ensure each screw head
Pin5----- Earth Wire
is not exceeding the surface
Figure 3.4.1-2
Installation instruction of waterproof coupling series connector please refer to Figure 3.4.1-3.
10~12mm
L1 ----- Live Wire 1
L2 ----- Live Wire 2
L3 ----- Live Wire 3
N ------ Neutral Wire
PE------ Earth Wire
Figure 3.3.2-5
Figure 3.3.2-6
Figure 3.3.2-7
wire crimpers impose line
fasten screw cap clockwise
Tighten the screws
Figure 3.4.1-3
3.4 Electrical Connection
AC cable illustration please refer to Figure 3.4.1-4.
3.4.1 Connection to Grid (AC Side Connection)
B
A
(1) Check the grid voltage and frequency, select a suitable safety standard from inverter that comply with this requirements.
(2) Add breaker or fuse to AC side, the specification should be more than 1.25 times of rated AC output current.
(3) The PE line of inverter should be connected to the earth, make sure the impedance of neutral wire and earth wire less
C
than 10 ohm.
Grade Description
(4) Disconnect the breaker or fuse between the inverter and the utility.
Value
(5) Connect the inverter to the grid as follows:
A
O.D.
There are two AC connector brands for inverter,---VACONN Series and Waterproof Coupling Series, please refer to Figure 3.4.1-1.
B
Conductor Material Sectional Area* 9~25kW: 4~10mm²; 4~6kW: 4~8mm²
C
Bare Wire Length
Waterproof Coupling Series
VACONN Series
Figure 3.4.1-1
9~25kW: 18~25mm; 4~6kW: 11~20mm
12mm around
*Value of Conductor Material Sectional Area refers to the following table
Model
GW009K-DT
GW010K-DT
GW012K-DT
GW015K-DT
Conductor Material Sectional Area
Model
Conductor Material Sectional Area
4~10mm
2
GW017K-DT
4~10mm2
4~10mm
2
GW020K-DT
6~10mm2
4~10mm
2
GW025K-DT
10~25mm2
4~10mm
2
Figure 3.4.1-4
05
06
Grid compatibility
Positive connector
DT series GW09K-DT~GW25K-DT and SDT series support four different types of grid. please refer to Figure 3.4.1-5.
TN-S
Transformer
L1
L2
L3
N
PE
PE
GoodWe
DT Series
TN-C-S
Transformer
L1
L2
L3
N
PE
TT
Transformer
PE
GoodWe
DT Series
Inverter
L1
L2
L3
N
Negative connector
PE
GoodWe
DT Series
Figure 3.4.1-5
Note:For TT grid structure, RMS voltage between neutral wire and earth wire must be less than 20V.
3.4.2 DC Side Connection
Special tools are used to stitching
(1) Before connecting PV string, make sure DC switch is turned off .
(2) Make sure PV string polarity confirms with DC connector, otherwise, it will cause damage to inverter.
Figure 3.4.2-2
(3) Make sure the maximum open circuit voltage (Voc) of each PV string does not exceed the inverter input voltage
DC Cable specification please refer to Figure 3.4.2-3.
Vmax under any condition.
(4) Do not connect positive or negative pole of PV string to earth wire. Otherwise, it will cause damage to inverter.
A
Installation instruction of MC4 connectors please refer to Figure 3.4.2-1 or Figure 3.4.2-2.
B
C
Inverter
Positive connector
Grade Description
Value
A
O.D.
B
Conductor Material Sectional Area 2.5~4mm²
C
4~5mm
Bare Wire Length
7mm around
Figure 3.4.2-3
For better inverter IP65 protection from water and dust, all pairs of DC connectors provided in accessory bags should be used.
However, if there is still extra pairs unused after installation, please make sure the unused pairs still be connected to the inverter with
exposed wires compressed, the exposed wires should be at least kept 15mm out of DC connectors, please refer to Figure 3.4.2-4.
Otherwise, DC connector protecting cover in the accessory bag could be used to cover the exposed DC connector.
Negative connector
Figure 3.4.2-1
15mm
30mm
cable without
copper core compressed
Figure 3.4.2-4
07
08
3.4.3 USB Communication
Cables
Single hole
RS485 Communication
Board
seal ring
Screw cap
The insulator
Cables
USB cable should be connected as Figure 3.4.3-1.
Crystal Head
PIN Color of the wire Function
2.Insert the USB data cable
1.Open the USB cover
Figure 3.4.3-1
If you need USB communication, please download EzExplorer software at www.goodwe.com.cn.
1
Orange and white Reserved
2
Orange
3
Green and white RS485B
4
Blue
GND
5
Blue and White
GND
6
Green
Reserved
7
RS485A
Brown and White RS485B
8
Brown
Tighten the screw
in clockwise direction
RS485A
RS485 waterproof assembly
3.4.4 RS485 Communication
Figure 3.4.4-2
(2) Connect the inverter to EzLogger with RS485 cable, and EzLogger to switch or router with CAT5E STP cable.
This function only applies to inverter with RS485 ports.
The RS485 interface is used to connect EzLogger only, please make sure the connecting cables not exceed 800m.
Notice
RS485 connection please refer to Figure 3.4.4-1.
The requirement of RS485 communication cable: STP or Ethernet cable of STP type
(3) The choice of 120ohm termination resistor dip switch.
Internet
INVERTER
INVERTER
●If there is only one GoodWe DT inverter, RS485 connection cable with waterproof RJ45 plug can realize connection.
INVERTER
Router
PC
EzLogger
●For single inverter communication, choose one among the two RJ45 ports. Please use a waterproof cover to cover the port which is
not used.
●For single inverter communication, put on the 120ohm termination resistor dip switch near RJ45 port. (The default is OFF).Then
shielding layer of communication cable is single point grounding.
POWE
LINK
R
SPEED
RS485
USB
RCR
EzL
ogg
er
Reload
RS485
Reset
RS485
RS485
Figure 3.4.4-1
(1) Connection procedure:
●Remove the waterproof kit of RS485 cover with screwdriver.
●Remove the screw cap of the cable gland.
●Remove the one-hole sealing ring.
● Insert the RS485 cable through the components as the followings: screw cap, one-hole sealing ring, insulation body and sheet
Figure 3.4.4-3
metal parts.
●Compress 8 cores of cable into the corresponding interface of crystal head. Please refer to Figure 3.4.4-2.
●Connect the compressed crystal head to the port of RS485.
●Fasten the RS485 waterproof kit to inverter.
●Fasten the screw cap of the cable gland.
09
10
●If there are several GoodWe PV inverters, their connection can be realized by RS485 communication cables which are in daisy chain
connection.
4 System Operation
●For the end inverter in daisy chain, put on the 120ohm termination resistor dip switch near RJ45 port. (The default is OFF).Then
shielding layer of communication cable is single point grounding.
4.1 LED Lights
(4) RS485 communication connection method
●GoodWe DT inverter can be connected with Ezlogger separately for data acquisition and monitoring. It can be also connected with
PC terminal via Ezlogger to realize communication.
Up
POWER
Down
●The connection method of single GoodWe DT inverter, Ezlogger and PC terminal is show in Picture3.4.4-4. The connection method
of several GoodWe DT inverters, Ezlogger and PC terminal is show in Picture3.4.4-5.
RUN
Enter
FAULT
INVERTER
ESC
ESC
LED lights in Yellow/Green/Red correspondently refer to POWER/RUN/FAULT.
RS485-IN
Yellow: Light on indicates the inverter is electrified.
RS485-OUT
To WiFi model inverters, If the Power light flashes every 0.5sec, it indicates the connection between inverter and your WiFi
POW
LINK
ER
SPE
120Ω
ED
RS4
USB
RCR
router is abnormal; If the Power light flashes every 2.5sec, it indicates the inverter has successfully connected to your WiFi
85
EzLo
gger
Reload
Reset
router however connection with Web Server is abnormal; If the Power light keeps on continuously, it indicates WiFi
monitoring is all normal.
Ethernet
RJ45 terminal
PC
Green: If the RUN light keeps on, it indicates inverter operating normally. If the RUN light is flashing, it indicates the inverter is
undertaking self-checking.
屏蔽层接地
Red: If the Fault light keeps on, it indicates inverter abnormal conditions and require service.
Figure 3.4.4-4
4.2 User Interface and Controls
INVERTER
INVERTER
INVERTER
Set Safety Country :
If display shows 'Configure Safety', then long press (2S) the key to enter the second level menu. Short press to browse the safety
country list available. Choose suitable safety country according to the location of installation. The inverter will store the chosen
safety country after 20 seconds if no operation.
RS485-IN
Display area is divided as follows:
POW
LINK
ER
SPE
ED
RS4
USB
RCR
85
Area ①
KWh
EzLo
gger
Reload
RJ45 Terminal
No r m a l
Reset
RS485-OUT
RS485-IN
RS485-OUT
RS485-IN
RS485-OUT
120Ω
(1) The Figure of LCD display screen is shown as follow:
RS485-OUT
Area ②
Ethernet
2014-04-03
PC
屏蔽层接地
Figure 3.4.4-5
4
6
8
10
12
14
16
Area ③
18
KWh
KWh
PM
W
Area ④
If several GoodWe DT inverters linked together with Ezlogger, the inverter number in daisy chain could be 16 at most.
(2) Display area
3.4.5 WiFi Communication
Area① indicates the flow of energy. Full line ( )between inverter and the grid means the grid is available but inverter is not yet feeding
Area①——Flow of Power Generated:
The WiFi communication function is only applied to WiFi models, the detailed configuration instruction can be referred to WiFi configu-
power at the time. Flashing dashing lines (---) mean inverter is feeding power to grid. No line means grid is not available. Flashing dash
ration in the accessory box or the "WiFi Monitoring Vedio"on the official website, http://www.goodwe.com.cn/en/DownLoad.aspx.
lines between the sun, modules and inverter means there is energy from the sun to modules and then from modules to inverter.
After configuration, please browse http://www.goodwe-power.com to create PV station.
Area②——Status Information:
Area② displays inverter power generation status. Different inverter status like languages & time settings, error logs, historical power
information etc could all be switched and displayed here through button operations.
Area 2 has 3 levels of menu. Please refer to the diagram below.
11
12
Error Log
Date&Time
Language
Histogram
Normal
2012-03-26
Down
Down
Up
Down
Down
Up
Down
Up
F1=50.00HZ
F2=50.01HZ
F3=50.00HZ
Down
Up
Model
GW17K-DT
Ver:1.00
Down
Up
Error Log
Date&Time
Language
Histogram
Down
ESC
Set Local
WiFi Reset
WiFi Reload
70% Rated
Down
13:12:25
2012-03-25
Down
Error Log
Date&Time
Language
Histogram
Enter
ESC
Language:
English
Up
…………
Down
Up
语言:
Down
中文
Enter
ESC
Year Mode
Month Mode
Day Mode
Hour Mode
ESC
Enter
Year Mode
2012
Day Mode
2012-03
Year Mode
2012-03-26
Set Local
WiFi Reset
WiFi Reload
70% Rated
Enter
ESC
Enter
Year Mode
Up
Month Mode
Day Mode
Down
Hour Mode
Month Mode
2012
ESC
Enter
Year Mode
Enter Month Mode
Day Mode
ESC
Hour Mode
ESC
WiFi
WiFi
Enter
Reload long press Reloading
Up
Up
IL1=15.5A
IL2=15.3A
IL3=15.4A
Set Modbus
Shadow OFF
LVRT OFF
PF Adjust
Down
Up
Set Modbus
Set Modbus
Enter
Shadow OFF long press Shadow ON
LVRT OFF
LVRT OFF
Enter
PF Adjust long press PF Adjust
Set Modbus
Shadow OFF
LVRT OFF
PF Adjust
Set Modbus
Set Modbus
Enter
Shadow OFF long press Shadow ON
LVRT OFF
LVRT ON
Enter
PF Adjust long press PF Adjust
Up
ESC
Down
Down
Down
Model:
GW 6K-DT
Down
WiFi
Reload
Success
Up
Down
WiFi
Reload
Failure
Down
Error Log
Date&Time
Language
Histogram
Language:
Enter
Down
Set Usual
ADDR:247
Shadow OFF
LVRT OFF
Enter
*
Set
ADDR: 247
语言:
Up
English
ESC
Up
…………
Down
Error Log
Date&Time
Language
Histogram
Enter
ESC
Year Mode
Month Mode
Day Mode
Hour Mode
Down
Year Mode
Month Mode
Day Mode
Hour Mode
Up
Down
ESC
Enter
Year Mode
2012
中文
Year Mode
2012-03-26
Up
Down
Year Mode
Month Mode
Day Mode
Hour Mode
Enter
Month Mode
2012
ESC
Enter
Year Mode
Month Mode
Day Mode
Hour Mode
Day Mode
2012-03
Enter
ESC
Down
Up
ESC
Up
Set Web
Zigbee ID
70% Rated
Set Modbus
Enter
Set Web
Zigbee ID
70% Rated
Set Modbus
Enter
long press
Enter
long press
Zigbee ID
ReSet
ID
Enter
ReSetting Wait
long press
ID ReSet
Successful
ID ReSet
Failed
Up
Set Web
Zigbee ID
100% Rated
Set Modbus
Set Usual
ADDR:100
ShadowOFF
Set Web
Set Usual
Enter
Zigbee ID long press ADDR:247
70% Rated
ShadowOFF
Enter
Set Modbus long press
ADDR:
100
Enter
long press
Down Or Up
Some times
Up
Set Web
Zigbee ID
70% Rated
Set Modbus
ADDR:
100
Down
13:12:25
2012-03-25
ESC
Up
Set Web
Zigbee ID
70% Rated
Set Modbus
Error Log
Date&Time
Language
Histogram
Down
Over
Temperatur
13:29:25
2012-01-18
Up
Set Web
Zigbee ID
70% Rated
Set Modbus
Ver:1.00
WiFi
Reset Failed
Up
…………
Set Time
Enter
Set Web
Zigbee ID
70% Rated
Set Modbus
Up
Up
Up
Error Log
Date&Time
Language
Histogram
Down
Up
WiFi
Reset
Successful
Wait
Down
Down Or Up
Some times
Down
Set Usual
ADDR:247
ShadowOFF
Enter
ADDR:
247
Up
Shadow OFF
LVRT OFF
PF Adjust
Enter
Shadow OFF
LVRT OFF long press
PF Adjust
Enter
long press
ShadowON
LVRT OFF
PF Adjust
Down
ESC
-0.90
PF Set
Enter
-0.95 long press
Successful
+0.95
+0.90 Enter Set Modbus
Shadow OFF
Down Up
LVRT OFF
Disable
PF Adjust
Up
Utility
Loss
13:12:25
2012-03-25
Enter
ESC
F1=50.00HZ
F2=50.01HZ
F3=50.00HZ
Set Usual
Enter
ADDR:100
Shadow OFF long press
Set Modbus Enter
Set Usual
Shadow OFF long press ADDR:247
Down
LVRT OFF
Shadow
OFF
Enter
PF Adjust long press
LVRT OFF
Error Log
Date&Time
Language
Histogram
Error Log
Date&Time
Language
Histogram
Up
Enter
Set Local
Set Local
WiFi Reset long press WiFi Reset
WiFi Reload
WiFi Reload
Enter
70% Rated long press 100% Rated
Error Log
Date&Time
Language
Histogram
Down
ESC
Set Local
WiFi Reset
WiFi Reload
70% Rated
Error Log
Date&Time
Language
Histogram
Enter
WiFi
WiFi
Enter
Wait
Reset long press Resetting
Up
Set Local
WiFi Reset
WiFi Reload
70% Rated
Year Mode
Up
Month Mode
Day Mode
Down
Hour Mode
Error Log
Date&Time
Language
Histogram
Down
Up
Down
Up
VL1=230.5V
VL2=232.5V
VL3=233.0V
Down
Error Log
Date&Time
Language
Histogram
Up
Vp1=200.3V
Ip1= 15.8A
Vp2=300.8V
Ip2= 12.5A
Enter
Up
* Set Modbus
Shadow OFF
LVRT OFF
PF Adjust
Down
Up
13
Set Time
Up
Set Local
WiFi Reset
WiFi Reload
70% Rated
Down
Up
*For SDT series,
there is no “Set
Modbus” and
“Shadow OFF”,
”LVRT OFF”.
Error Log
Date&Time
Language
Histogram
Set Local
WiFi Reset
WiFi Reload
70% Rated
Down
WiFi Model
Down
Up
Error Log
Date&Time
Language
Histogram
Down
Down
2012-03-26
Enter
Down
Normal
Over
Temperatur
13:29:25
2012-01-18
Up
Down
Down
IL1=15.5A
IL2=15.3A
IL3=15.4A
Enter
Up
Down
Up
ESC
Utility
Up
Loss
………
13:12:25 Down
2012-03-25
Up
Error Log
Date&Time
Language
Histogram
VL1=230.5V
VL2=232.5V
VL3=233.0V
Enter
Up
Error Log
Date&Time
Language
Histogram
Vp1=200.3V
Ip1= 15.8A
Vp2=300.8V
Ip2= 12.5A
Error Log
Date&Time
Language
Histogram
Down
PF Set
Failed
Set Modbus
Shadow OFF
LVRT OFF
PF Adjust
Non-WiFi Model
*For SDT series,
there is no “Set
Modbus” and
“Shadow OFF”,
”LVRT OFF”.
Up
Shadow OFF
LVRT OFF
PF Adjust
Down
Up
Shadow OFF
LVRT OFF
PF Adjust
Shadow OFF
Shadow ON
Enter
LVRT OFF long press LVRT ON
PF Adjust
PF Adjust
Enter
long press
-0.90
PF Set
Enter
-0.95 long press
Successful
+0.95
+0.90 Enter Shadow OFF
LVRT OFF
Down Up
Shadow OFF
Shadow ON
Enter
PF Adjust
Disable
LVRT OFF long press LVRT OFF
PF Adjust
PF
Adjust
Enter
long press
Up
Down
ESC
PF Set
Failed
Shadow OFF
LVRT OFF
PF Adjust
14
Area③——Histogram Display:
In all levels of menu, it will automatically enter the first item of the level 1 menu if no action is taken within 30S, meanwhile, the
Area③ uses histogram to demonstrate the average power generation at each hour from 4:00am to 8:00pm on one day. Each
modified data will be stored into internal memory.
columnar points 20 scale, the left top area shows the maximum rated power generation each hour for inverter.
(4) Menu introduction:
This area can display information in different modes, There are 5 display modes in total: real-time mode, hour mode, day mode,
Long press ‘ENTER’ in the Configure Safety interface,there will be set safety interface .press ‘Down’ or ‘Up’ to choose the safety you
month mode, year mode.
need and then long press ‘ENTER’,the safety you need can be set.
Real-time mode: display hourly power generation from 4:00am to 8:00pm;
Hour mode: display the hourly power generation in a specific day from recent 14 days;
Configure
Safety
Enter
long press
Set Safety:
Down
Set Safety:
ESC
…
Up
…
Day mode: display the daily power generation in a specific month from recent 6 months;
Enter
long press
Set Safety
Successful
● When PV panel is feeding power to the inverter, the screen shows the first interface of level 1 menu. The interface displays current
Month mode: display the monthly power generation for 12 months in specific year;
Year mode: display annual power generation for recent 10 years.
state of the system. It shows 'Waiting' in the initial state; it shows 'Normal' during power generation mode; if there is something
Take day mode for example:
wrong with the system, error message is shown. Error code can be refered to 4.3.
● Press any key once to turn on the LCD backlight when it is off; if the backlight is on, press 'DOWN' key to enter the next menu
72kWh
displaying data of Vpv and Ipv; press 'ENTER' to lock the current interface.
1.0
● In the level 1 menu, the displayed information can be switched through 'DOWN' and 'UP' key operation, there are 7 interfaces in
total, which are circulatory. The level 2 menu can only be selected through 'ENTER' from the seventh interface.
0.8
●In the level 2 menu, short press 'Error Log' to enter the historical error message interface, press 'up' and 'down' to inquire the first
0.6
5 historical error message, press 'Esc' to return.
0.4
●In the level 2 menu, short press 'Date&Time' to enter the time setting interface, press 'up' and 'down' to change the data, short
0.2
● In the level 2 menu, choose 'Language' and press 'Enter' to enter language setting interface, the LCD will flash, press 'up' or
press 'Enter' to move cursor, long press 'Enter' to save the settings.
17
19
21
23
25
27
29
31
'down' to change language, long press 'Enter' to save the settings, when it stops flashing, press 'Esc' to return.
●In the level 2 menu, choose 'Histogram', short press 'Enter' to enter the level 3 menu to inquire the historical power generation, in
72kWh means the maximum power generation of recent 16 days. The unit on the left corner sometimes turns to "MWh" from
the level 3 menu, press 'up' or 'down' to inquire power generation data in Year Mode, Month Mode, Day Mode and Hour Mode,
"kWh", it depends on Maximum power generation. 0.2~1.0 on the left is scare factor, which is fixed display content; 17~31 are
short press 'Enter' to show the historical power generation, press 'Esc' back to main menu.
based on current mode which shows the bar chart label.
● In the level 2, the Menu after 'Histogram' is communication selecting interface, if it is WiFi model, It shows as 'Set Zigbee' (It
Area④ Displays total power generation, daily power generation, real-time power generation and time information, described as
shows as 'Set Local' for the SDT series). Long press 'Enter', It becomes 'set Web', the communication type turn into non WiFi
follow:
model, long press 'Enter' to back to 'Set Zigbee', the communication mode turns back to WiFi model.
Area
Description
E-DAY
Daily power generation
E-TOTAL
Gross power generation after first time use of inverter. The initial unit is “kWh”; When power generation ex-
●In the level 2 menu, if it is WiFi model, please choose 'WiFi Reset' or 'WiFi Reload' and short press 'Enter' to enter the interface.
Then long press 'Enter' will reset or reload the inverter WiFi mode. Wait for 25 seconds, operation result will show on display. Press
'Esc' to return.
●In the level 2 menu, if it is non-WiFi model, please choose 'Zigbee ID' and short press 'Enter'. The display shows 'Zigbee ID Reset',
ceeds 999.9kWh, the unit changes to “MWh”.
long press 'Enter' to reset the inverter Zigbee ID mode. Wait for 25 seconds, operation result will show on display. Press 'Esc' to
TIME
Current system time
return. (Notice: The operation only suits the Zigbee mode inverter.)
POWER
Real-time power generation of the system
(3)Use of the display and LCD display:
The buttons near the LCD screen are mainly used for inverter information display, setting of time, language selection and histogram
information display.
The menu in LCD display area has three levels; In the level 1 menu, first 6 interfaces showing inverter status, model, PV voltage and
current, grid voltage and current, line frequency. Pressing button “Enter” to lock current menu interfaces in order to observe specific
parameter. In the meanwhile, backlight will turn on for 1 min; Press “Enter” to unlock the interface for information display, the
backlight will be kept on for 30S and then switch back to default initial interface.
●In the level 2 menu, long press 'Set Modbus' to get 'Set Usual' and an added menu 'ADDR: 247'. Press “Down' to choose 'ADDR:
247' and short press 'Enter' to enter Modbus address interface. Press 'Up' or “Down' to set the address.
This function is used for special requirements.
●Long press 'ENTER' in the model type interface, there will be set safety interface. Press 'Down' or 'Up' to choose the safety you
need and then long press 'ENTER', the chosen safety will be set. If there is no EXACTLY proper country code, please choose '50Hz
Grid Default' or '60Hz Grid Default' accordingly.
Model :
GW 17K-DT
Enter
long press
Set Safety:
Down
Set Safety:
Ver:1.02.02
ESC
…
Up
…
The last interface (including error Log, time and data, language setting and historical electricity generation) can be entered by
pressing 'Enter' to according Level 2 menu.
In level 2 menu, move the cursor to the setting area through 'DOWN' and 'UP' key operation. For the level 2 menu which has three
level menus, press 'ENTER' to get in and change the figures at cursor location through 'DOWN' and 'UP' key operation, in addition,
the cursor location can be changed by pressing 'ENTER'.
15
Enter
long press
Set Safety
Successful
This function is used for special requirements.
●In the level 2 menu, choose 'Shadow OFF'( if shadow mode has not been turned on), long press 'Enter', it shows 'Shadow ON'
indicating shadow mode has been successfully turned on. (Only available for DT series. )
16
This function is used for special requirements.
● In the level 2 menu, choose '70% Rated', at this time, the inverter is 100% output power, long press ‘Enter’, it becomes '100%
Rated' , then the output power will be limited to 70%. The function is only for using with VDE AR-N 4105 standard or in France
areas , and only for service person. Misuse will cause the inverter derating. This menu is not shown for other standards.
5 Troubleshooting
If the Inverter is not able to work properly, please refer to the following instructions before contact your local service.
Should any problems arise, the red (FAULT) LED indicator on the front panel lights up and the LCD screen will display relevant
information. Please refer to the following table for a list of error message and associated solutions.
Display
This function is used for special requirements.
Isolation Failure
(5)Operation of Display when commissioning.
Ground I Failure
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 still exists.
Vac Failure
1. The PV Inverter will automatically restart within 5 minutes if the grid returns to normal.
2. Make sure grid voltage is in conformity with the specification.
3. Make sure Neutral (N) Wire and PE wire is connected well.
4. Contact local service office for help if the problem still exists.
Fac Failure
1. The PV Inverter will automatically restart within 5 minutes if the grid returns to
normal.
2. Make sure grid frequency is in conformity with the specification.
3. Contact local service office for help if the problem still exists.
Utility Loss
1.Grid is not connected.
2.Check grid connection cables.
3.Check grid usability.
PV Over Voltage
1. Check whether the PV open voltage is higher or too close to the maximum input
voltage.
2. If the problem still exists 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.
Relay-Check Failure
DC Injection High
EEPROM R/W Failure
SCI Failure
SPI Failure
DC Bus High
GFCI Failure
IFan Fault
EFan Fault
AFan Fault
2.Wait till inverter LCD unlighted.
checking, when it shows '00Sec' you can hear the relay triggers, LCD displays 'Normal' afterwards. The instant power output will be
shown at the right bottom of LCD.
4.3 Error Code
Error code Error message
01
SPI Failure
Description
Internal communication failure
02
EEPROM R/W Failure
Memory chip failure
03
Fac Failure
Grid frequency out of range
Relay Check Failure
Relay self-checking failure
13
DC Injection High
Overhigh DC injection
14
Isolation Failure
Ground insulation impedance is too low
15
Vac Failure
Grid voltage out of range
16
EFan Fault
External Fan Failure
17
PV Over Voltage
Overvoltage at DC input
19
Over Temperature
Overtemperature on the case
20
IFan Fault
Internal Fan Failure
21
DC Bus High
Overhigh BUS voltage
22
Ground I Failure
Overhigh ground leakage current
23
Utility Loss
Grid disconnection/fault
07,25
System
Fault
30
Ref 1.5V Failure
1.5V reference voltage failure
31,24
AC HCT Failure
Output current sensor failure
32,26
GFCI Failure
Detection circuit of ground leakage current failure
Inverter
Others
Device Failure
Internal device failure
failure
4.4 WiFi Reset & WiFi Reload
Choose 'WiFi Reset ' button in level 1, short press 'enter' to enter level 2 menu 'WiFi Reset '; long press 'Enter' to reset inverter WiFi
model; wait for a while, operation result will show on display, the function can be applied when inverter is unable to connect to
router or monitor server.
Choose 'WiFi Reload' button in level 1, short press 'WiFi Reload' to enter level 2 menu 'WiFi Reload'; long press 'enter' button will
reload the inverter WiFi model to initial setting. Wait for a while, operation result will show on display, the function can be applied
when inverter is unable to connect to WiFi model. Once WiFi model restore initial setting, WiFi model need be reset again.
Notice:WiFi model only.
1.Check the impedance between PV (+) & PV (-) and make sure the inverter is earthed.
The impedance value must be greater than 200kΩ.
2.Contact local service office for help if the problem still exists.
When the input voltage reaches inverter turn-on voltage, LCD displays 'waiting'. If the grid is accessible, 'Checking xxx Sec'(The time
is decided by the grid connection standards from different country) will be shown up in 5sec, During the counting, the inverter is self-
The error message in below diagram will be displayed on the LCD if a fault occurs.
Possible actions
No display
1.Turn off DC switch of the inverter.
3.Turn on DC switch and make sure it connected.
4.If the problem still exists, contact local service office for help.
1.Turn off DC switch, take off DC connector, check inverter module voltage.
2.Plug in DC connector, and turn on DC switch.
3.If voltage is lower than 250V(1), please check configuration of invert module.
4.If voltage is higher than 250V(1), please contact local office.
Notice: 1. At the place that marked (1) in the chart, GW10K/12K/15K/17K/20K/25K-DT is 250V, GW4000/5000/6000-DT is 180v.
2. When sunlight is insufficient, the PV Inverter may continuously start up and shut down automatically due to insufficient
power generated by the PV panel.
17
18
6 Technical Parameters and Block Diagram
Model
6.1 Technical Parameters
Model
Grid regulation
GW09K-DT
GW10K-DT
9200
10200
GW12K-DT GW15K-DT GW17K-DT
GW20K-DT
GW25K-DT
20500
25800
DC input Data
* DC power(W)
Max.
Max. DC voltage (V)
MPPT voltage range (V)
1000
1000
260~850
260~850
12300
15400
17500
1000
1000
1000
260~850 260~850 260~850
IEC62109-1&-2, AS3100
EN 61000-6-1,EN 61000-6-2,EN 61000-6-3,EN 61000-6-4, EN 61000-3-11, EN 61000-3-12
250
250
250
250
250
22/11
22/22
22/22
22/22
27/27
General Data
DC overcurrent protection(A)
33
33
33
33
33
33
38
Weight (kg)
No. of DC connectors
3
3
3
4
4
4
6
Mounting
No. of MPPTs
2
2
2
280V ~910Vdc
27A / 20A
Isc PV(absolute maximum)
27A/27A
32A/32A
9000
10000
12000
15000
17000
20000
25000
Max. AC power(W)
9000
10000
12000
15000
17000
20000
25000
Max. AC current(A)
15
17
19
25
25
30
37
42
42
54
42
54
60
72
Norminal AC output
AC output range
4K4H
Max. operating altitude
2000m
Outdoor & indoor
External environment pollution degree
Grade1、2、3
Topology
Transformerless
<1
Night power consumption(W)
Fan cooling
Cooling
<45
5.0'' LCD
USB2.0; RS485 or WiFi
Standard warranty(years)
0.9 leading~0.9 lagging
Power factor
40
39
IP65
Protection degree
Communication
<1.5%
THDi
39
0~95%
Moisture location category
Display
45~55Hz/55~65Hz; 310~480Vac
39
Wall bracket
Noise emision(dB)
50/60Hz; 400Vac
39
-25~60°C (>45°C derating)
Environment category
AC Output Data
5/10/15/20/25 (optional)
3W/N/PE
Grid connection
Category Ⅲ
AC overvoltage category
Model
45A 75us
Current (inrush)
18.75
21.25
23.75
31.25
31.25
* Max. DC power(W)
37.5
46.25
Efficiency
Max. DC voltage (V)
MPPT voltage range (V)
Max. efficiency
98.0%
98.0%
Euro efficiency
>97.7%
>97.7%
99.9%
99.9%
98.2%
98.2%
98.4%
98.4%
>97.7% >97.7% >97.7%
>98.1%
>98.1%
99.9%
99.9%
99.9%
98.0%
99.9%
99.9%
Protection
Residual current monitoring unit
Integrated
Anti-islanding protection
Integrated
Integrated (optional)
AC over current protection
Integrated
Insulation monitoring
Integrated
GW4000-DT
GW5000-DT
GW6000-DT
4200
5200
6200
DC input Data
81.5A@27ms(L-L)/38.5A@5.7ms(L-N)
Maximum output fault current
19
39
Relative humidity
MC4 / SUNCLIX (optional)
PV input operating voltage range
39
Ambient temperature range
2 (can parallel)
Category Ⅱ
DC connector
516*650*203mm
Dimensions (WxHxD)
0
DC overvoltage category
VDE-AR-N 4105, G59/3,
G59/3, EN50438 VDE-AR-N 4105
VDE0126-1-1
NRS097-2-1
AS4777.2&.3
G59/3
AS4777.2&.3, IEC62109-2
VDE0126-1-1
VDE0126-1-1, RD1699,
NRS097-2-1
EN50438
IEC62109-2
ERDF-NOI-RES_13E
MEA, PEA, RD1699
ERDF-NOI-RES_13E
EMC
250
Max. inverter backfeed current to
the array (A)
VDE0126-1-1 VDE-AR-N 4105
ERDF-NOI- G59/3, EN50438
NRS097-2-1
RES_13E
AS4777.2&.3
VDE0126-1-1
IEC62109-2
MEA, PEA, RD1699
ERDF-NOI-RES_13E
Safety
22/11
DC switch
GW25K-DT
1000
250
MPPT adaptation efficiency
GW20K-DT
260~850
22/11
Maximum output overcurrent protection
GW12K-DT GW15K-DT GW17K-DT
1000
Max. DC current (A)
AC overcurrent protection(A)
GW10K-DT
260~850
Starting voltage (V)
Norminal AC power(W)
GW09K-DT
Certifications&Standards
1000
1000
1000
200~800
200~800
200~800
Starting voltage (V)
180
180
180
Max. DC current (A)
11/11
11/11
11/11
DC overcurrent protection(A)
21
21
21
No. of DC connectors
2
2
2
Max. inverter backfeed current to
the array (A)
No. of MPPTs
DC overvoltage category
DC connector
0
2 (can parallel)
Category Ⅱ
MC4 / SUNCLIX (optional)
20
Model
GW4000-DT
GW5000-DT
GW6000-DT
AC Output Data
Model
GW4000L-DT
GW5000L-DT
GW6000L-DT
4200
5200
6200
600
600
600
200~550
200~550
200~550
DC input Data
Norminal AC power(W)
4000
5000
6000
Max. AC power(W)
4000
5000
6000
Max. AC current(A)
7
8.5
10
MPPT voltage range (V)
AC overcurrent protection(A)
22
28
28
Starting voltage (V)
180
180
180
Max. DC current (A)
11/11
11/11
11/11
DC overcurrent protection(A)
21
21
21
No. of DC connectors
2
2
2
Norminal AC output
AC output range
THDi
Power factor
Grid connection
AC overvoltage category
50/60Hz; 400Vac
45~55Hz/55~65Hz; 310~480Vac
<1.5%
0.9 leading~0.9 lagging
3W/N/PE
Category Ⅲ
Max. DC voltage (V)
Max. inverter backfeed current to
the array (A)
0
No. of MPPTs
2(can parallel)
Category Ⅱ
DC overvoltage category
Efficiency
Max. efficiency
97.8%
Euro efficiency
>96.7%
MPPT adaptation efficiency
* Max. DC power(W)
99.9%
Protection
DC connector
MC4 / SUNCLIX (optional)
AC Output Data
Norminal AC power(W)
4000
5000
6000
Max. AC power(W)
4000
5000
6000
Residual current monitoring unit
Integrated
Max. AC current(A)
7
8.5
10
Anti-islanding protection
Integrated
AC overcurrent protection(A)
22
28
28
DC switch
Integrated (optional)
Norminal AC output
AC over current protection
Integrated
AC output range
Insulation monitoring
Integrated
THDi
Certifications&Standards
Grid regulation
Power factor
VDE-AR-N 4105, AS4777.2&.3, IEC62109-2, VDE0126-1-1+A1, EN50438, G83/2
Safety
IEC62109-1&-2, AS3100
EMC
EN 61000-6-1, EN 61000-6-2, EN 61000-6-3, EN 61000-6-4, EN 61000-3-2, EN 61000-3-3
General Data
Dimensions (WxHxD)
Weight (kg)
Mounting
Ambient temperature range
Relative humidity
516*474*192mm
24
Wall bracket
-25~60°C (>45°C derating)
0~95%
Grid connection
AC overvoltage category
96.8%
MPPT adaptation efficiency
Residual current monitoring unit
DC switch
Integrated
Integrated
Certifications&Standards
Topology
Transformerless
Grid regulation
Display
Communication
Standard warranty(years)
21
Integrated
Integrated (optional)
Insulation monitoring
Grade1、2、3
Noise emision(dB)
Integrated
AC over current protection
External environment pollution degree
Cooling
99.9%
Protection
4K4H
Night power consumption(W)
3W/N/PE
Category Ⅲ
>95.5%
2000m
IP65
0.9 leading~0.9 lagging
Euro efficiency
Max. operating altitude
Outdoor & indoor
<1.5%
Max. efficiency
Moisture location category
Environment category
45~55Hz/55~65Hz; 310~480Vac
Efficiency
Anti-islanding protection
Protection degree
50/60Hz; 400Vac
AS4777.2&.3, IEC62109-2
<1
Safety
IEC62109-1&-2, AS3100
Natural Convection
EMC
EN 61000-6-1, EN 61000-6-2, EN 61000-6-3, EN 61000-6-4, EN 61000-3-2, EN 61000-3-3
<30
5.0'' LCD
USB2.0; RS485 or WiFi
5/10/15/20/25 ( optional)
General Data
Dimensions (WxHxD)
Weight (kg)
Mounting
516*474*192mm
24
Wall bracket
22
Model
GW4000L-DT
GW5000L-DT
GW6000L-DT
0~95%
Relative humidity
Moisture location category
4K4H
Max. operating altitude
2000m
IP65
Protection degree
6.2 Block Diagram
Block Diagram of GW4000-DT~GW6000-DT and GW4000L-DT~GW6000L-DT refer to Figure 6.2-1:
DC
Switch
PV1+
DC
Outdoor & indoor
Environment category
External environment pollution degree
Grade1、2、3
Topology
Transformerless
<1
Night power consumption(W)
PV1-
Filter
<30
Noise emision(dB)
Circuit
3-level
Inverter
PV2+
DC
Natural Convection
Cooling
MPPT1
EMI
PV2-
AC
LC
Filter
Circuit
EMI
MPPT1
Filter
Circuit
EMI
Filter
L1
L2
L3
N
PE
AC Isolation Relay
5.0'' LCD
Display
Figure 6.2-1
USB2.0; RS485 or WiFi
Communication
5/10/15/20/25 (optional)
Standard warranty(years)
Block Diagram of GW09K-DT & GW10K-DT & GW12K-DT refer to Figure 6.2-2:
*It is recommended that the total peak power of PV strings should not exceed 130% of maximum DC power of inverter listed in the table.
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. Examples are appliances, portable tools and
other plug-connected equipment;
Category III: applies to fixed equipment downstream of and including, the main distribution board. Examples are 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).
DC
Switch
PV1+
DC
SPD
PV1-
DC
EMI
MPPT1
Circuit
Filter
3-level
Inverter
PV2+
DC
SPD
PV2-
LC
Filter
Circuit
DC
EMI
MPPT2
Filter
Circuit
Example are electricity meters, primary overcurrent protection equipment and other equipment connected directly to
AC
EMI
Filter
L1
L2
L3
N
PE
AC Isolation Relay
Figure 6.2-2
outdoor open lines.
Block Diagram of GW15K-DT & GW17K-DT & GW20K-DT refer to Figure 6.2-3:
Moisture location category definition
Moisture parameters
Temperature Range
Humidity Range
3K3
0~+40℃
5%~85%
Level
4K2
-33~+40℃
15%~100%
4K4H
-20~ +55°C
4%~100%
DC
Switch
PV1+
PV1-
DC
SPD
DC
EMI
Filter
MPPT1
Circuit
3-level
Environment category definition
Outdoor : the ambient air temperature is -20~50°C, Relative humidity range is 4 % to 100 %, applied to PD3
Inverter
PV2+
Indoor unconditioned: the ambient air temperature is -20~50°C, Relative humidity range is 5 % to 95%,applied to PD3
Indoor conditioned: the ambient air temperature is 0~40°C, Relative humidity range is 5 % to 85%,applied to PD2
Pollution degree definition
PV2-
DC
SPD
DC
EMI
Filter
Circuit
AC
LC
Filter
EMI
Filter
MPPT2
Circuit
L1
L2
L3
N
PE
AC Isolation Relay
Figure 6.2-3
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. Occasionally, however, a temporary conductivity caused by
condensation must be expected.
Pollution degree 3: Conductive pollution occurs, or, dry, non-conductive pollution occurs which becomes conductive due to
condensation which is expected.
Pollution degree 4: Persistent conductive pollution occurs, for example, the pollution cause by conductive dust, rain and snow.
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7.2 Checking the DC Switch
Block Diagram of GW25K-DT refer to Figure 6.2-4:
DC
Switch
PV1+
DC switch does not require any maintenance.
It is recommended, though not compulsory, to:
DC
SPD
PV1-
DC
EMI
Filter
●Check the DC switch regularly.
MPPT1
●Activate the DC switch 10 times in a row once a year.
Circuit
3-level
Inverter
PV2+
DC
SPD
Circuit
EMI
Filter
Filter
MPPT2
Circuit
L1
L2
L3
N
PE
Operating the switch will clean the contacts and will extend the life of the DC switch.
8 Certificates
AC Isolation Relay
伏产品金太
认证
太阳
光
阳
能
PV2-
DC
EMI
Filter
AC
LC
59
Figure 6.2-4
VDE0126-1-1
VDE-AR-N 4105 IEC62109-2 EN50438 NRS097-2-1
7 Maintenance
RD1699
MEA&PEA
ERDF-NOI-RES_13E
Regular maintenance ensures a long operating life and optimal efficiency of the entire PV plant.
Caution: Before maintains please disconnect the switch on AC and DC sides. Wait 10 seconds until the residual voltage has been
drained.
7.1 Cleaning the Fans
DT series inverter is fitted with two fans on its left side. The fan intakes and handle covers should be cleaned yearly with a vacuum
cleaner. For more thorough cleaning, completely remove the fans.
●Disconnect the switch on AC and DC sides.
●Wait 5 minutes until the residual voltage has been drained and the fans are no longer turning.
●Disassembly the fans (refer to Figure 7.1-1).
1)Loosen the five M4 screws with a crosshead screwdriver, then remove the fans out the cabinet about 50mm slowly.
2)Open the lockers of the two fan connectors and remove them from housing, then take the fans away.
●Clean the ventilation grid and the fan with a soft brush, a paint brush, a cloth, or compressed air.
●Reassembly the out fans into cabinet.
Figure 7.1-1
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