22-60VDC Grid Tie Microinverter
User Manual
Thanks for using Smart Grid Tie Microinverters. Read the following
instruction carefully before installation and operating, install and operate
as specified by this user manual strictly.
Catalogue
Smart Microinverter Introduction...............................................……1
Important Safety Information…………………………………………………………2
Technical Parameters………………………………………….……..………………….4
Installation…………………………………………………………….……………………5-6
LED Indicators…………………………………………………….………………..…….7-8
General troubleshooting……………………………………………………………....9
Stack used method………………………………………………………………..………10
Warranty………………………………………………………………………………….…..11
Product Warranty Card…………………………………………………………….…..12
Explore Applications Diagra….………………………….……………………………13
Smart Microinverter Introduction
Smart grid tie inverter is a compact unit, which directly converts direct
current into alternating current for powering appliances and/or office
equipments and connecting to utility grid. The AC output from Smart
Microinverter is synchronized and in-phase with the utility grid. It is a
key device of power generation systems such as PV power generation
system, wind turbine power generation system. Smart Microinverter
specially optimized design to work with modularization of DC power
supplies which includes the mainstream solar modules, 18V (36 cells),
24V (60 cells) and 36V (72 cells) monocrystal and/or Polycrystalline
solar panels, wind turbines and batteries. Smart Microinverters are
stabilization, reliable and high conversion efficiency items. It is the best
choice for PV power generation systems.
Smart Microinverter can be easily placed and attached to the rack
underneath of PV module. No need spaces for independent installation
and low voltage DC wire connects from the PV module to Smart
Microinverter can eliminate the risk of high DC voltage. Distributed
modularization design philosophy for Smart Microinverter insures the
productiveness of the whole system and will not affect by a single point
of failure. Each Smart Microinverter is individually connected to each PV
module in the array. This unique configuration means that an individual
Maximum Peak Power Point Tracker (MPPT) controls each PV modules
and insures that the maximum power available from each PV module is
exported to the utility grid regardless of the performance of the other
PV modules in the array which may be affected by shading, soiling,
orientation or mismatch, etc. Smart Microinverter insures top
performance for maximizing energy production from the whole PV
system and gets return on investment in less time.
1/13
Advantages of Smart Microinverter
1. Unique circuit design, choice of import industrial electronic components,
higher efficiency, more stable performance.
2. Creative MPPT technology, efficiency more than 99%, faster and more
sensitive reaction, more reliable.
3. Parallel type design for DC input and modularization design for inverter,
small volume, distributed installation, easy for system configuration,
flexible for combination, strong expansibility of system.
4. Adopting high-frequency isolation transformer type, high efficiency, and
high security.
5. Perfect electrical protection function.
6. Aluminum alloy housing, not rust, heat-resisting and cold-resistant as well
as anti-corrosion.
7. Getting electronic circuit design, appearance design and other core
technology patents.
8. Wide input voltage (22-60VDC), suit for different DC power supply.
Important Safety Information
Read this First
This manual contains important instructions for use during installation and
maintenance of the Smart Microinverter. To reduce the risk of electrical shock,
and to ensure the safe installation and operation of the Smart Microinverter, the
following safety symbols appear throughout this document to indicate dangerous
conditions and important safety instructions.
DANGER! This indicates a hazardous situation, which if not avoided,
will result in death or serious injury.
WARNING! This indicates a situation where failure to follow instructions
may be a safety hazard or cause equipment malfunction. Use extreme
caution and follow instructions carefully.
NOTE: This indicates information particularly important for optimal
system operation.
Follow instruction closely.
2/13
Safety Instruction











Do not use Smart microinverter in a manner not specified by the manufacturer.
Doing so may cause death or injury to persons, or damage to equipment.
Perform all electrical installations in accordance with all applicable local
electrical codes.
Be aware that only qualified personnel should disassemble and repair the Smart
Microinverters and non-qualified personnel should not install and/or repair.
Do not attempt to repair the Smart Microinverter; it contains no
user-serviceable parts. If it fails, contact customer service to claim a return
merchandise authorization and start the replacement process. Tampering with
or opening the Smart Microinverter will void the warranty.
If the AC cable connector on the microinverter is damaged or broken, do not
install the unit.
Before installing or using the Smart Microinverter, read all instructions and
cautionary markings in the technical description and on the Smart Microinverter
System and the PV equipment.
Connect the Smart Microinverter to the utility grid only after you have
completed all installation procedures and after receiving prior approval from the
local electrical utility company.
Be aware that the body of the Smart Microinverter is the heat sink. Under
normal operating conditions, the temperature is 15°C above ambient, but under
extreme conditions the microinverter can reach a temperature of 65-70°C. To
reduce risk of burns, use caution when working with microinverters.
Do NOT disconnect the PV module from the Smart Microinverter without first
removing AC power when microinverter still working. The better disconnect AC
terminal first and then disconnect DC terminal so as it help prevent components
damaged and protect the security of the human body.
Keep away from children, no touching, no playing so as not to electric shock
when using.
Please installed in place of low humidity and well-ventilated so as to avoid
inverter overheating, as well as clear around the inflammable and explosive
materials.
3/13
Smart Grid Tie Microinverter Technical Parameters
(Suit for 60 cells solar panel which Vmp is 26-30V as well as Voc is 34-38V.)
(Suit for 72 cells solar panel which Vmp is 35-37V as well as Voc is 44-46V.)
Power
500W
Solar panels
500-600W
DC input range
22-60VDC
MPPT Voltage
24-48V
DC MAX current
45A
AC MAX output
550W
AC output range
120VAC(90-140VAC) or 230VAC(190-260VAC)
Frequency range
50Hz/60Hz(Auto control)
Power Factor
>97.5%
THD
<5%
Phase Shift
<2%
Peak Efficiency/110V
>85%
Stable Efficiency/110V
>84%
Peak Efficiency/220V
>88%
Stable Efficiency/220V
>86%
Protection
Islanding; Short-circuit; converse connection; Low Voltage;
Over Voltage; Over temperature Protection
Work Temperature
-25℃-65℃
Work Humidity
0%~90%RH non-condensing
Grade of Waterproof
Indoor design
Show
LED
Cooling
Fan
Stand-by Power
2-3W
EMC
EN61000-6-3:2007 EN61000-6-1:2007
Grid Disturbance
EN 50178+EN 62109-1+VDE0126-1-12
Grid Detection
DIN VDE 1026 UL1741
Certificate
CE
Mounting dimension
16*13CM
4/13
Packing Specification
Packing Accessory
Mechanical Size
Net Weight/PCS
Inner Box (L x W x H)
Carton(L x W x H)
Microinverter, AC Cord, User Manual(Warranty Card)
21 x 16.5 x 5.3CM
1.3KGS/PCS
31 x 21 x 11.5 CM
42 x 31.5 x 35.5 CM, 6pcs/CTN, 8/11KGS
Installation
1. Diagrammatize DC input and AC output terminals,
2.
Attach the Smart Microinverter to the racking or fix onto the wall,
3. Properly connect the positive and negative of solar panel and Smart
Microinverter,
5/13
4. AC power cable connects with Smart Microinverter and residential power
grid which refers to low voltage civilian single-phase power grid.
5. Switch on power grid after check for input and output connections are
correct and then switch on the Smart Microinverter. At such time, LED
indicator light up from left to right, it is operating for LED indicators checking.
Then operation will enter into DC voltage range checking as per reference
line of 4 of section of LED Indicators introduction. After such checking, LED
will off from right to left one by one, and then in standby operation. When
DC and AC connect properly, AC LED and AC frequency LED will light up
accordingly. And then Fault red LED off, blue ST LED and Power output
display Red LED light up and flash. It is indicate that inverter is working.
When LED flash slowly, it is indicate that MPPT operating. When blue LED
6/13
long light and it is indicate that MPPT locking in. At the same time, Power
output display red LED indicators start to run from bottom to top as per
reference line of 5 of section of LED Indicators introduction.
Status Indications of LED
1. Red Led
1.1 Red FAULT LED indicator lights up under any conditions as listed below:
a) Low-voltage protection(DC input voltage lower than 22V Min. input
voltage of inverters)
b) Over-voltage protection(DC input voltage higher than 60V Max. input
voltage of inverters
c) Over-temperature protection (inverters will be shut down for power
output when the temperature of body of inverters higher than 60-65℃.)
And inverter will be automatically restart up when the temperature of
7/13
body of the inverter down to 40-50℃
d) Power grid fault protection (when 110VAC or 220VAC grid power outage
and/or tripped
e) Islanding protection: inverter will be automatically shut down for
power output when disconnect with power grid
1.2 Red LOW indicator: DC input voltage lower than 37VDC
1.3 Red High indicator: DC input voltage higher than 37VDC
1.4 Red Power LED indicator: starting up DC voltage checking and output power
LED status display
2. Blue ST LED
a) Blue LED flash: adjusting for power output, MPPT operating for tracking
b) Blue LED long light: indicates inverter locking-in Max. output power
operation status
3. Green LED
a) 120VAC/230VAC Indicators: associated LED lights up when run for power grid
voltage detection
b) 50/60Hz Indicators: associated LED lights up when run for frequency
detection
4. Start Up DC Voltage Detection Indicator(Power Output Display)
a) Within 10-20V DC input voltage range, one LED indicator flash
b) Within 20-30V DC input voltage range, two LED indicators flash
c) Within 20-30V DC input voltage range, two LED indicators flash
d) Within 40-50V DC input voltage range, four LED indicators flash
e) Within 50-60V DC input voltage range, five LED indicators flash
Remark: LED indicators run from bottom to top and flash, and detecting
time is 10 times, 0.5s/time
5. Output Power LED Indicators(Power output display)
a) Output power within 10-100W, one LED indicator flash
b) Output power within 100-200W, two LED indicators flash
c) Output power within 200-300W, three LED indicators flash
d) Output power within 300-400W, four LED indicators flash
e) Output power within 400-500W, five LED indicators flash
Remark: LED indicators run from bottom to top and flash.
6. Please note that above operations only run at grid-connected status.
8/13
Troubleshooting a non-operating Smart microinverter
1. System halted and /or without power output
a) Check if switch of Smart Microinverter is turn on or not,
b) Check if the DC connections to Smart Microinverter are correct or not,
c) Check if any reverse DC connections for positive or negative or not,
d) Check if DC input voltage is within the range of the Smart Microinverter’s
not,
e)
Check if the utility grid voltage and frequency are fit in with the serviceable
range of Smart Microinverte or not,
f)
g)
Check if fuses of DC side are fusing or not,
Check if utility grid voltage properly connecting to Smart Microinverters or
not,
DC power supply is normal but no power output:
Check if utility grid voltage is connecting to Smart Microinverter or not,
Check if utility grid voltage is fit in with the serviceable range of Smart
Microinverte or not,
Please visual inspection for the LED operation status, red LED will turn off
and green LED will flash or run when inverter connecting with DC power
source which input voltage is fit in with the range as specified and power
grid properly. If still no power output when green LED flash or run, probably
internal components are damaged, in such case, please turn the defective
inverter back for further analyze.
Please visual inspection for the LED operation status, red LED still turn on
and green LED without any flash or run when inverter connecting with DC
power source which input voltage is fit in with the range as specified and
power grid properly, probably internal components are damaged, in such
case, please turn the defective inverter back for further analyze.
2.
a)
b)
c)
d)
9/13
Smart Microinverter Stack Wiring Diagram
Smart Microinverter Three Phase output Wiring Diagram
10/13
Warranty
Warranty Conditions
Warranty Period: 15-year limited warranty period.
Warranty Evidence: The B/L,Tracking no, and a completed warranty card.
We Grants from__date__month___year to___date___month___year.
If your device has a defect or malfunction during the warranty period, please
contact your retailer or installer.
Warranty claims are excluded for:
• Alterations or repairs to the unit without prior authorization
• Improper use or operation of device
• Improper and non-standard installation
• operating the equipment with defective safety devices
• Impact of foreign objects and force majeure (lightning, surge, storm, fire)
• Inadequate or nonexistent ventilation of the device
• disregarding of safety regulations
• shipping damage
• The Product has been improperly stored or was damaged while in possession
of the Dealer or end user;
WARNING! Only qualified electrical professionals can do the trouble shooting
of the Smart Microinverter system.
WARNING! Do not disconnect the microinverter from its PV module when
the inverter is still operating. Disconnect the inverter from the PV module
during running may damage the microinverter and bring electrical hazard
to the person nearby.
WARNING! Disconnect the AC grid first before disconnecting the inverter
from the PV module.
WARNING: Do not attempt to repair the Smart Microinverter. This may bring
electrical hazard to the person and it will also void the Microinverter
warranty. If troubleshooting methods fail, please contact customer support to
return the Microinverter and initiate for replacement process.
11/13
Product Warranty Card(Invalid Duplicate)
Customer Feedback:
Name
Country and/or Territory
Telephone
Email
Purchase Channels and/or
Sources
Models
Date of Purchase
Date of Installation
Time of Using
Brief Fault Description
Improvement Suggestions
Distributor and/or Sales Representative
Distributor Name
Telephone and/or Email
Sales Representative
Date of Customer
Feedback
Date of finish Disposal
Disposal
QC
Technician
Others
12/13
Explore Application Diagram
1.
Compatible with solar panel as specified in parameter table
2.
Work with wind turbine,if the wind turbine do not build in wind charge
controller,need add wind charge controller(24V/36V)
3.
Work with battery, PV module and wind turbine charging the battery and battery
discharging to inverter for converting AC power which will feed into power grid.
13/13
Download PDF