Deye SUN Series Instruction Manual

Installation / User Manual
Photovoltaics Grid-connected micro-
inverters (with built-in WIFI-G3)
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User manual
DEYE SUN microinverter

Important safety instructions
Safety information
Explanation of radio interference suppression
Meaning of symbols
Introduction to the microinverter system
Microinverters maximise PV energy production
More reliable than central or string inverters
Easy to install
Introduction to microinverters Installation of
the microinverter system
Additional compontents for the installation
Parts and tools required from you
Parts list
Installation procedure
Operating instructions for the micro inverter
system Troubleshooting
Status displays and error messages
Troubleshooting a malfunctioning microinverter
Replace
Connection diagram
Monitoring platform
How is the microinverter configured for the router via the Internet?
How to connect in the APP
01-03
03-05
05
06-10
10-11
11-13
14
15-18
19
20-23
24-28
Art.-Nr. 4-01-015790
DEYE SUN microinverter
User manual

Important safety instructions
This manual contains important instructions to follow when installing and maintaining the grid-
connected photovoltaic inverter (microinverter). To avoid the risk of electric shock and to ensure the
safe installation and operation of the microinverter, the following symbols are used in this document
to indicate hazardous conditions and important safety instructions.
Specifications subject to change without notice - Please make sure you are using the latest manual
available on the manufacturer's website.
CAUTION: This symbol indicates a situation where failure to follow the instructions may result in a
serious hardware failure or personal injury. Use extreme caution when performing this task.
NOTICE: This sign indicates information that is important for optimal operation of the micro inverter.
Follow these instructions strictly.
Safety instructions
√DO NOT disconnect the PV module from the microinverter without disconnecting the AC supply.
√Only qualified personnel should install and/or replace the microinverters.
√Carry out all electrical installations in accordance with local electrical regulations.
√Before installing or using the microinverter, please read all instructions and warnings in the technical
documentation and on the microinverter system and solar array
√Note that the housing of the micro inverter serves as a heat sink and can reach a temperature of 80℃.
To avoid the risk of burns, do not touch the housing of the micro inverter.
√DO NOT attempt to repair the microinverter. In the event of a defect, contact technical support to obtain an
RMA number and initiate the replacement procedure. Damaging or opening the microinverter will void the
warranty.
√Caution!
The external protective earth conductor is connected to the micro inverter's protective earth terminal
via the AC connection.
When connecting, connect the AC terminal first to ensure the inverter is earthed and then make the DC
connections.
When disconnecting, disconnect the AC first by opening the branch circuit breaker, but leave the
protective conductor in the branch circuit breaker connected to the inverter, and then disconnect the
DC inputs.
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√Under no circumstances connect the DC input when the AC plug is disconnected.
√Install disconnecting devices on the AC side of the inverter.
Explanation of radio interference suppression
CE EMC Compliance: The unit complies with the requirements of the CE EMC Directive, which is
designed to protect against harmful interference when installed in a residential area. The unit may
radiate radio frequency energy, which may cause harmful interference to radio communications if
the instructions are not followed during installation and use of the unit. However, there is no
guarantee that interference will not occur in a particular installation.
If this equipment does cause interference to radio or television reception, the following measures
may correct the problem:
A) Position the receiving antenna differently and keep it at a greater distance from the unit.
B) Consult the dealer or an experienced radio/TV technician for help. Changes or modifications
not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.
Meaning of symbols
Caution, risk of electric shock.
Caution, risk of burns - do not touch.
Caution, hot surface.
Symbol for the marking of electrical and electronic equipment in accordance with
Directive 2002/96/EC. It indicates that the appliance, accessories and packaging
must not be disposed of as unsorted municipal waste and must be collected
separately at the end of their working life. Please refer to local ordinances or
regulations for disposal or contact an authorised representative of the manufacturer
for information on the disposal of equipment.
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counter
microinverter
WIFI-amplifier
Neutral conductor
grounding
Router monitoring system
junction box
PV-
module
Introduction to the micro inverter system
The microinverter is used in grid-connected applications and consists of two key
elements: :
● microinverter
● router
This series of microinverters has a built-in WIFI module so that it can communicate directly with
the router.
qualified
staff
The CE mark is affixed to the solar inverter to confirm that the device complies with
the provisions of the European Low Voltage and EMC Directives.
Follow the operating instructions
Person who is adequately advised or supervised by a qualified electrician to
identify risks and avoid hazards that may arise from electricity. For the purposes
of the safety instructions in this manual, a "qualified person" is a person who is
familiar with the safety requirements of the refrigeration system. person" means a
person who is familiar with safety, cooling system and EMC requirements and is
authorised to energise, ground and tag equipment, systems and circuits in
accordance with established safety procedures. The inverter and end-use system
may only be commissioned and operated by qualified personnel.
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NOTE: If the WLAN signal in the area of the micro inverter is weak, a WLAN signal
booster must be placed at a suitable location between the router and the
micro inverter.
This integrated system improves safety, maximises solar energy harvesting, increases system
reliability and simplifies solar system design, installation, maintenance and management.
Microinverters maximise PV energy production
Each PV module has an individual MPPT (Maximum Peak Power Tracking) control, which ensures that the
maximum power is fed into the grid regardless of the power of the other PV modules in the array.
More reliable than central or string inverters
The distributed microinverter system ensures that there is not a single point of failure in the entire PV
system. Microinverters are designed to operate at full power at outdoor temperatures of up to 149℉
(65℃). The housing of the inverter is designed for outdoor installation and complies with protection class
IP65.
counter
WIFI-amplifier
Neutral conductor
Router monitoring system
Grounding
junction box
micro inverter
PV-
module
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Easy to install
You can install individual PV modules in any combination of module number, orientation, different
types and power rates. The earth wire (PE) of the AC cable is connected to the enclosure inside the
microinverter, which may eliminate the need to install an earth wire (check local regulations).
Data collection is done via internal WiFi, a wireless router is required near the micro inverter. After
completing the installation of the micro inverter, configure the WLAN router with the internal WLAN
(see WLAN user manual). The data will be uploaded automatically. Users can monitor and manage
the micro inverter via the corresponding website or APP.
Introduction to microinverters
The microinverters can be connected to the single-phase grid and several microinverters can also be
used in the form of a single-phase grid to achieve a three-phase grid.
Modell-No. AC network Max. Number per branch
SUN300G3-EU-230 50/60Hz, 230V 17 for 25A LS-switch
SUN500G3-EU-230 50/60Hz, 230V 10 for 25A LS-switch
SUN600G3-EU-230 50/60Hz, 230V 8 for 25A LS-switch
SUN800G3-EU-230 50/60Hz, 230V 6 for 25A LS-switch
SUN1000G3-EU-230 50/60Hz, 230V 5 for 25A LS-switch
SUN1300G3-EU-230 50/60Hz, 230V 4 for 25A LS-switch
SUN1600G3-EU-230 50/60Hz, 230V 4 for 45A LS-switch
SUN2000G3-EU-230 50/60Hz, 230V 3 for 45A LS-switch
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Installation of the micro inverter system
A PV system with microinverters is easy to install. Each microinverter can be easily mounted on the PV
frame directly under the PV module(s). The low voltage DC cables are connected directly from the PV
module to the microinverter, avoiding the risk of high DC voltage. Installation MUST be carried out in
accordance with local regulations and technical rules.
Special note! An AC RCD should not be used to protect the microinverter's circuit, even if it is an
external circuit. None of the small RCDs (5-30mA) are designed for backfeeding and will be
damaged if backfeeding occurs. Similarly, AC circuit breakers are not designed for regenerative
power and can be damaged if regenerated with the output of a PV inverter.
CAUTION: Carry out all electrical installations in accordance with local electrical regulations
CAUTION: Note that the installation and/or replacement of microinverters must only be carried out
by qualified personnel.
CAUTION: Before installing or using a microinverter, please read all instructions and warnings
in the technical documentation and on the microinverter system itself and on the PV
generator
CAUTION: Note that there is a risk of electric shock when installing this unit.
CAUTION: Do not touch any live parts of the system, including the PV generator, when the system is
connected to the mains.
NOTE: It is strongly recommended to install surge protectors in the designated meter box.
Additional components for the installation
-AC plugs and sockets (sold separately
-Sealing end caps (sold separately)
Parts and tools required from you
In addition to your PV generator and the associated hardware, you will need the following parts:
-an AC junction box
-mounting material suitable for the installation of the modules
-sockets and spanners for the mounting parts
-a continuous earthing conductor and earthing washers
-Phillips screwdriver
-a torque spanner
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Antenna x1*
AC-Plug (optional) x1
User manual x1
Microinverter x1
Parts list
Please use the following chart to check if all parts are included in the package：
*This antenna is for micro inverters with built-in WiFi module.
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Installation procedure
Step 1 - Installing the AC junction box
a. Install a suitable junction box at a suitable location on the PV racking system (usually at
the end of a module branch).
b. Connect the open wire end of the AC cable to the junction box with a suitable gland or
strain relief.
c. Wire the cores of the AC cable (230/400Vac): L - red; N - black; PE - yellow-green.
d. Connect the AC junction box to the connection point of the supply network.
CAUTION : The wiring colour code may vary depending on local regulations; check all wires in the
installation before connecting to the AC cable to ensure they match. Incorrect wiring may cause
irreparable damage to the microinverters, which is not covered by the warranty.
Step 2 - Fixing the micro inverter to the frame or to the PV module frame
a. Mark the location of the microinverter on the rack with respect to the PV module junction
box or other elements.
b. Mount a microinverter at each of these locations using the parts recommended by the
module rack manufacturer.
300 / 500G3 (1MPPT)
600 / 800 / 1000G3
(2MPPT) mounting
1300 / 1600 / 2000G3
(4MPPT) mounting
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CAUTION: Before installing a microinverter, check that the mains voltage at the common
connection point matches the rated voltage on the microinverter
label.
CAUTION: Do not place the inverters (including the DC and AC connections) in locations
exposed to the sun, rain or snow, including in the spaces between the
modules. Leave a minimum clearance of 3/4 (1.5 cm) between the roof and
the bottom of the microinverter to ensure good air circulation.
Step 3 - Parallel connection of the micro inverters
300 / 500G3 (1MPPT) 600 /
800 / 1000G3
(2MPPT) connect in parallel
1300 / 1600 / 2000G3 (4MPPT)
connect in parallel
a. Check the microinverter technical data on page 5 for the maximum number of
microinverters allowed in each AC branch circuit.
b. Insert the AC plug of the micro inverter into the socket to connect it.
CAUTION: DO NOT exceed the maximum number of microinverters in an AC
branch circuit as indicated on page 5 of this manual.
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Step 4 - Fitting an AC cable protection cap to the end of the AC cable
Step 5 - Connecting the Microinverter to the PV modules
NOTE: If AC power is already present when the DC cables are plugged in, the microinverter
should immediately flash red and start working within the set time (standard 60
seconds). If no AC power is present, the red light will flash three times quickly and
repeat after one second until AC power is connected.
Operating instructions for the Microinverter system
Operation of the microinverter PV system:
1. switch on the AC line circuit breaker on each AC branch circuit of the micro
inverter.
2. switch on the main AC circuit breaker of the utility grid. Your system will start
generating power af ter a one-minute wait.
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3. he units should flash red one minute after the AC circuit breaker is switched on. Then the
blue LED flashes. This means that the units are generating power normally. The faster the
blue LED flashes, the more power is being generated.
4. Configure the internal WiFi module according to the instruction manual.
5. The microinverters will start sending performance data to the network via the Wi-Fi module
every 5 minutes. This allows customers to monitor the performance data of each
microinverter via the website and the APP.
NOTE: When AC power is present but the microinverter is not operating, approximately 0.1 A of
current and 25 VA (W) of power can be measured for each microinverter with a
power meter. This power is reactive power that is not consumed by the utility
grid.
Troubleshooting
Qualified personnel can perform the following troubleshooting steps if the PV system is not
functioning properly:
Status displays and error messages
Flashes slowly blue
Flashes quickly blue
Flashes red
Flashes red twice
Flashes red three times
-Generates low power
-Generates high power
-no power
-AC undervoltage or high voltage
-Mains fault
Start-LED
One minute after the first application of DC voltage to the microinverter, a short red flash
indicates a successful start-up sequence of the microinverter. An equal or greater short
red flash after the first application of DC voltage to the microinverter indicates a
microinverter setup error.
Operating LED
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GFDI-Error
A red LED flashing four times indicates that the micro inverter has detected a GFDI (Ground
Fault Detector Interrupter) fault in the PV system. As long as the GFDI fault has not been
rectified, the LED continues to flash four times.
Other Errors
All other errors can be reported via the website and the APP.
CAUTION: Never disconnect the DC line connections under load. Make sure that no current is
flowing in the DC lines before disconnecting. Before disconnecting the module,
the module can be covered with an opaque cover.
Troubleshooting a malfunctioning microinverter
There are a total of two possible error areas:
A. The microinverter itself may have a problem.
B. The microinverter itself is working properly, but the communication between the
microinverter and the network is disturbed. The following points refer to problems with the
microinverter, not communication problems:
A quick method to determine if it is a microinverter or communication problem:
1. Diagnosis on the microinverter: a red light - either flashing or continuous
- on the microinverter or no light at all means that there is definitely a problem with the
microinverter.
2. 2. 0 Watt or 2 Watt: Possibly a problem with the micro inverter.
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2. diagnosis via the network:
a. No data display: The website and the APP do not display any data, check the network
configuration.
b. It only shows that the micro inverter is online, but no data. This may be because the
server is being updated.
To deal with a malfunctioning microinverter, carry out the following steps in
order:
1. Make sure that the mains voltage and frequency are within the ranges specified in the
"Technical data" section of this manual. "Technical Data" section of this manual.
2. Check the connection to the mains. Disconnect the AC first, then the DC and make sure that
the voltage of the mains can be measured at the AC connection. Never disconnect the DC
lines while the microinverter is generating power. Reconnect the DC module connectors and
watch for three short LED flashes.
3. Check the AC branch circuit connection between all microinverters. Make sure that each
inverter is powered by the utility grid as described in the pre vious step.
4. Make sure that all AC switches are working properly and are closed.
5. Check the DC connections between the micro-inverter and the PV module.
6. Make sure that the DC voltage of the PV module is within the permissible range specified in
the technical data of this manual.
7. If the problem persists, please contact technical support.
CAUTION : Do not attempt to repair the microinverter and contact technical support if
troubleshooting methods fail.
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Replace
Proceed as follows to replace a failed micro inverter
A. Disconnect the microinverter from the PV module in the order shown below:
1. Disconnect the alternating current (AC) by switching off the circuit breaker.
2. Disconnect the AC plug of the micro inverter.
3. Cover the module with an opaque cover.
4. Disconnect the DC cable connections of the PV module from the micro inverter.
5. Remove the microinverter from the rack of the PV generator.
B. Attach a new microinverter to the bracket and remove the opaque cover. Look for the
flashing LED light once the new microinverter is connected to the DC cables.
C. Connect the AC cable of the replacement micro inverter.
Technical data
CAUTION: Make sure that the voltage and current specifications of your PV-Module
match those of the microinverter. Refer to the data sheet or the user
manual.
CAUTION: You must match the DC operating voltage range of the PV module with the
permissible input voltage range of the micro inverter.
CAUTION: The maximum open-circuit voltage of the PV module must not exceed the specified
maximum input voltage of the inverter.
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Connection diagram
Sample wiring diagram, three-phase
grounding Router
MAX 17 SUN300G3-EU-230per Branch
MAX 10 SUN500G3-EU-230per Branch
MAX 8 SUN600G3-EU-230 per Branch
MAX 6 SUN800G3-EU-230 per Branch
monitoring system MAX 5 SUN1000G3-EU-230 per Branch
WIFI-amplifier
counter
red L
black N
yellow PE
junction box
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junction box
counter
grounding Router monitoring system
MAX 17 SUN300G3-EU-230 per Phase
MAX 10 SUN500G3-EU-230 per Phase
MAX 8 SUN600G3-EU-230 per Phase
MAX 6 SUN800G3-EU-230 per Phase
MAX 5 SUN1000G3-EU-230 per Phase
yellow PE
black N
red L
WIFI amplifier
Sample wiring diagram single-phase
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red L
black N
yellow PE
junction box
WIFI-amplifier Router
MAX 4 SUN1300G3-EU-230 per Phase
MAX 3 SUN1600G3-EU-230 per Phase
MAX 2 SUN2000G3-EU-230 per Phase
grounding monitoring system
counter
Sample wiring diagram, three-phase
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black N
yellow PE
junction box
counter
grounding
WIFI-amplifier
monitoring system
MAX 4 SUN1300G3-EU-230 per Phase
MAX 3 SUN1600G3-EU-230 per Phase
MAX 2 SUN2000G3-EU-230 per Phase
red L
Sample wiring diagram single-phase
Router
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