Huayu HY-600-Pro Instruction Manual

Add:No.456, Xingning Road, Ningbo315100, P.R,China
Tel : [phone]
E-mail: [email protected] P.C : 315100
Web : www.huayu-energy.com
HY-500-PRO
HY-600-PRO
HY-600-PRO-127V
Installation/User Manual
Photovoltaic Grid-connected
Microinverter(Built-in WIFI)
Ver: 1.4, 2020-02

Table of Contents
Important Safety Instructions
Microinverter System Introduction
Microinverter Introduction
Microinverter System Installation
Microinverter System Operating Instructions
Safety Instructions
Radio Interference Statement
Microinverters Maximize PV Energy Production
More Reliable than Centralized or String Inverters
Simple to Install
The Meaning of Symbols
Additional Installation Components
Required Parts and Tools from You
Installation Procedures
01-03
06-09
05
03-05
09-10
Troubleshooting
Status Indications and Error Reporting
10-12
Replacement
Technical Data
Wiring Diagram
500G / 600G Microinverter Datasheet
Troubleshooting a Non-operating Microinverter
1200G / 1300G Microinverter Datasheet
Sample Wiring Diagrams
13
13-15
16-21

- 01 -
Important Safety Instructions
This manual contains important instructions to follow during installation and maintenance
of the Photovoltaic Grid-connected Inverter(Microinverter).To reduce the risk of
electrical shock and ensure the safe installation and operation of the Microinverter, the
following symbols appear throughout this document to indicate dangerous conditions
and important safety instructions.
Specifications subject to change without notice - please ensure you are using the latest
manual found at the manufacturer website.
Safety Instructions
DO NOT disconnect the PV module from the Microinverter without disconnecting
the AC power.
Only qualified professionals should install and/or replace the Microinverters.
Perform all electrical installations in accordance with local electrical codes.
Before installing or using the Microinverter, please read all instructions and cautionary
markings in the technical documents and on the Microinverter system and the
solar-array.
Be aware that the body of the Microinverter is the heat sink and can reach a temperature
of 80℃. To reduce risk of burns,do not touch the body of the Microinverter.
DO NOT attempt to repair the Microinverter. If it fails, contact technical support
to obtain an RMA number and start the replacement process. Damaging or opening
the Microinverter will void the warranty.
Caution!
The external protective earthing conductor is connected to the inverter protective
earthing terminal through AC connector.
When connecting, connect the AC connector first to ensure the inverter earthing
then do the DC connections.
When disconnecting, disconnect the AC by opening the branch circuit breaker first
WARNING: This indicates a situation where failure to follow instructions may cause a
serious hardware failure or personnel danger if not applied appropriately. Use extreme
caution when performing this task.
NOTE: This indicates information that is important for optimized microinverter
operation. Follow these instructions strictly.

- 02 -
CE EMC Compliance：The equipment can comply with CE EMC, which are designed
to protect against harmful interference in a residential installation. The equipment could
radiate radio frequency energy and this might cause harmful interference to radio
communications if not following the instructions when installing and using the equip-
ment. But there is no guarantee that interference will not occur in a particular installation.
If this equipment causes harmful interference to radio or television reception,the following
measures might resolve the issues:
A) Relocate the receiving antenna and keep it well away from the equipment.
B) Consult the dealer or an experienced radio / TV technical for help.
Changes or modifications not expressly approved by the party responsible for compliance
may void the user's authority to operate the equipment.
Radio Interference Statement
Please install isolation switching devices on the AC side of the inverter.
but maintain the protective earthing conductor in the branch circuit breaker connect
to the inverter ,then disconnect the DC inputs.
In any circumstance, do not connect DC input when AC connector is unplugged.
The Meaning of Symbols
Symbol for the marking of electrical and electronics devices according to
Directive 2002/96/EC. Indicates that the device, accessories and the
packaging must not be disposed as unsorted municipal waste and must
be collected separately at the end of the usage. Please follow Local
Ordinances or Regulations for disposal or contact an authorized
representative of the manufacturer for information concerning the
decommissioning of equipment.
Can be OEM Trademark.
Caution, risk of electric shock.
Caution, hot surface.

- 03 -
CE mark is attached to the solar inverter to verify that the unit
follows the provisions of the European Low Voltage and EMC
Directives.
Refer to the operating instructions.
Person adequately advised or supervised by an electrically skilled person
to enable him or her to perceive risks and to avoid hazards which
electricity can create. For the purpose of the safety information of this
manual, a "qualified person" is someone who is familiar with
requirements for safety, refrigeration system and EMC and is authorized
to energize,ground, and tag equipment, systems, and circuits in
accordance with established safety procedures. The inverter and endues
system may only be commissioned and operated by qualified personnel.
Qualified
personnel
Microinverter System Introduction
The Microinverter is used in utility-interactive grid-tied applications, comprised of three
key elements:
· Microinverter
· Router
500G / 600G
Meter
Distribution Box
Microinverter
Ground
Neutral
PV
Module
Router Monitoring system
WIFI Boost

- 04 -
Microinverters Maximize PV Energy Production
Each PV module has individual Maximum Peak Power Tracking (MPPT) controls,
which ensures that the maximum power is exported to the utility grid regardless of the
performance of the other PV modules in the array.When PV modules in the array are
affected by shade, dust, orientation,or any situation in which one module
underperforms compared with the other units, the Microinverter ensures top
performance from the array by maximizing the performance of each module within the
array.
More Reliable than Centralized or String Inverters
The distributed Microinverter system ensures that no single point of system failure exists
across the PV system.Microinverters are designed to operate at full power at ambient
outdoor temperatures of up to 149℉ (65℃). The inverter housing is designed for
outdoor installation and complies with the IP65 environmental enclosure rating.
1200G / 1300G
NOTE: If the wireless signal in the area where the microinverter is weak is weak, it is
necessary to add a wifi signal booster at a suitable place between the router
and the microinverter.
Meter
Distribution
Box
Ground
Neutral
PV
Module
Microinverter
This integrated system improves safety; maximizes solar energy harvest;increases system
reliability, and simplifies solar system design, installation,maintenance, and management.
Router Monitoring system
WIFI Boost

- 05 -
Simple to Install
You can install individual PV modules in any combination of Module quantity,
orientation, different type and power rate The Ground wire (PE) of the AC cable is
connected to the chassis inside of the Microinverter,potentially eliminating the
installation of grounding wire (check local regulation).
Data collection adopts internal wifi,wireless router is needed near the microinverter.When
complete the installation of microinverter,configure wireless router with internal wifi(refer
to the wifi user manual).The data will be uploaded automatically.Users can monitor and
manage the microinverter through corresponding website or APP.
Microinverter Introduction
The Microinverters connect with the single-phase grid, and can also use multiple Micro-
inverters in the form of single-phase grid to achieve three-phase grid, and operate with
most 60 and 72 cell PV modules. For more information, please see the Technical Data
page (P16~21) of this manual.
Model
Number AC grid PV Module Max. # Per branch AC grid
HY-500-Pro
HY-600-Pro
HY-600-Pro-127V
HY-1000-Pro
HY-1200-Pro
HY-1300-Pro
HY-800-Pro
50/60Hz,230V 60,72 Cell 8 for 25A breaker
4 for 25A breaker60,72 Cell
MC-4 Type or Customize
50/60Hz,208/240V
50/60Hz,230V
60,72 Cell 8 for 25A breaker MC-4 Type or Customize
MC-4 Type or Customize
50/60Hz,230V 60,72 Cell 5 for 25A breaker MC-4 Type or Customize
50/60Hz,127V 60,72 Cell 8 for 25A breaker MC-4 Type or Customize
50/60Hz,208/240V 4 for 25A breaker60,72 Cell MC-4 Type or Customize
50/60Hz,230V 4 for 25A breaker60,72 Cell MC-4 Type or Customize
HY-1600-Pro 50/60Hz,230V 4 for 25A breaker60,72 Cell MC-4 Type or Customize

- 06 -
Microinverter System Installation
Additional Installation components
A PV system using Microinverters is simple to install. Each Microinverter easily mounts
on the PV racking, directly beneath the PV module(s). Low voltage DC wires connect
from the PV module directly to the Microinverter, eliminating the risk of high DC
voltage.Installation MUST comply with local regulations and technical rules.
Special Statement! An AC GFCI device should not be used to protect the dedicated circuit
to the microinverter even though it is an outside circuit. None of the small GFCI devices
(5~30mA) are designed for back feeding and will be damaged if back feed. In a similar
manner, AC AFCIs have not been evaluated for back feeding and may be damaged if back
feed with the output of a PV inverter.
· AC Male and Female Interconnection Connectors (sold separately)
· Sealing end caps(sold separately)
WARNING: Perform all electrical installations in accordance with local electrical codes.
WARNING: Be aware that only qualified professionals should install and/or replace
Microinverters.
WARNING: Before installing or using an Microinverter,please read all instructions and
warnings in the technical documents and on the Microinverter system
itself as well as on the PV array.
WARNING: Be aware that installation of this equipment includes the risk of electric
shock.
WARNING: Do not touch any live parts in the system, including the PV array, when
the system has been connected to the electrical grid.
NOTE: Strongly recommend to install Surge protection Devices in the dedicated meter
box.
Required Parts and Tools from you
In addition to your PV array and its associated hardware, you will need the following
items:
· An AC connection junction box
· Mounting hardware suitable for module racking
· Sockets and wrenches for mounting hardware
· Continuous grounding conductor and grounding washers
· A Phillips screwdriver
· A torque wrench

- 07 -
Installation Procedures
                             
a. Install an appropriate junction box at a suitable location on the PV racking system
(typically at the end of a branch of modules).
b. Connect the open wire end of the AC cable into the junction box using an appropriate
gland or strain relief fitting.
c. Wire the conductors of the AC((127/220/230): L - red; N - black ;PE - yellow green.
Wire the conductors of the AC(208/240): L1-red;L2-black;PE-yellow green.
d. Connect the AC branch circuit junction box to the point of utility Interconnection.
                                           
a. Mark the location of the Microinverter on the rack, with respect to the PV module
junction box or any other obstructions.
b. Mount one Microinverter at each of these locations using hardware recommended
by your module racking vendor.
WARNING: Wiring colour code can be different according local regulation,check all
the wires of the installation before connecting to the AC cable to be sure they match.
Wrong cabling can damage irreparably the microinverters,such an issue is not covered
by the warranty.
500G / 600G Mounting 1200G / 1300G Mounting

- 08 -
WARNING: Prior to installing any of the microinverters, verify that the utility voltage
at the point of common connection matches the voltage rating on microinverter label.
WARNING: Do not place the inverters (including DC and AC connectors) where
exposed to the sun, rain or snow, even gap between modules.Allow a minimum of 3/4
(1.5cm.) between the roof and the bottom of the Microinverter to allow proper air flow.
                           
a. Check the Microinverter technical data page 5 for the maximum allowable number of
Microinverters on each AC branch circuit.
b. Plug the male AC connector of the Microinverter into the female connector to get it
connected.AC connector interface as follows.
WARNING: DO NOT exceed maximum number of Microinverters in an AC branch
circuit, as displayed on the page 5 of this manual.
500G / 600G connect in parallel 1200G / 1300G connect in parallel
L(L1) N(L2)
PE
127/220/230
(208/240)

- 09 -
                                            
                               
NOTE:When plugging in the DC cables, if AC already available,the Microinverter should
immediately blink red light and will start work within the setting time (default 60 seconds).
If AC is not available,the red light will blink 3 times quickly and repeat after one second
until AC is connected.
7.5
Microinverter System Operating Instructions
1. Turn ON the AC circuit breaker on each microinverter AC branch circuit.
2. Turn ON the main utility-grid AC circuit breaker. Your system will start producing
power after a one-minute waiting time.
To operate the microinverter PV system:

- 10 -
Troubleshooting
3. The units should start blinking red one minutes after turning on the AC circuit breaker.
Then blue led blinking. This means they are producing power normally, the faster
blinking of the blue led means more power generated.
4. Configure the internal wifi module according to its user manual.
5. The Microinverters will start to send performance data over wifi module to the network
every 5 minutes.It enables customers to monitor performance data of each microinverter
through website and APP.
Qualified personnel can use the following troubleshooting steps if the PV system does
not operate correctly:
NOTE: When AC power is applied but the microinverter not started up, about 0.1A current
and 25VA(W) power for each microinverter may be measured by a power meter. This
power is reactive power,not consume from utility grid.
Start up LED
Operation LED
One minute after DC power is first applied to the microinverter,one
short red blinks indicate a successful microinverter startup sequence,
be equal or greater than two short red blinks after DC power is first
applied to the microinverter indicate a failure during microinverter
setup.
Flashing Slow Blue - Producing small power
Flashing Fast Blue - Producing big power
Flashing Red - Not producing power
Red blinking two times - AC low-voltage or high-voltage
Red blinking three times - Grid failure
Status Indications and Error Reporting

- 11 -
GFDI Error
Other Faults
A four time red LED indicates the Microinverter has detected a
Ground Fault Detector Interrupter (GFDI) error in the PV system.
Unless the GFDI error has been cleared, the LED will remain four
times blinking.
All other faults can be reported to the website and APP.
WARNING: Never disconnect the DC wire connectors under load. Ensure that no
current is flowing in the DC wires prior to disconnecting. An opaque
covering may be used to cover the module prior to disconnecting the
module.
There are two possible overall areas of trouble:
A. The Microinverter itself may be having problems.
B. The Microinverter itself is working fine but the communication between microinverter
and network has problem. The items below refer to Microinverter issues, not communicat
-ion issues:
One quick way to tell whether the issue is the Microinverter or the communication problem:
1. Diagnosing from the Microinverter: A red light–either blinking or solid on the
Microinverter, or no light at all means it is definitely the Microinverter problem.
2. 0 watts, or 2 watts: Possibly a Microinverter problem
Troubleshooting a non-operating Microinverter

- 12 -
2. Diagnosing from the network:
a. No-Data-Display: The website and APP don't display any data.Check the network
configuration.
b. Only display microinverter is online but no data.This maybe because server is
updating.
To troubleshoot a non-operating Microinverter, Follow the steps
below in order:
1. Verify the utility voltage and frequency are within ranges shown in the Technical Data
section of this manual.
2. Check the connection to the utility grid.Disconnect AC firstly,then disconnect DC and
make sure the utility grid voltage can be measured at AC connector. Never disconnect
the DC wires while the microinverter is producing power. Re-connect the DC module
connectors and watch for three short LED flashes.
3. Check the AC branch circuit interconnection between all the microinverters. Verify
each inverter is energized by the utility grid as described in the previous step.
4. Make sure that any AC breaker are functioning properly and are closed.
5. Check the DC connections between the microinverter and the PV module.
6. Verify the PV module DC voltage is within the allowable range shown in the Technical
Data of this manual.
7. If the problem still persists, please contact technical support.
WARNING: Do not attempt to repair the microinverter.If troubleshooting methods fail,
please call for Technical Support

- 13 -
Technical Data
Replacement
A. Disconnect the Microinverter from the PV Module, in the order shown below:
1. Disconnect the AC by turning off the branch circuit breaker.
2. Disconnect the AC connector of the microinverter.
3. Cover the module with an opaque cover.
4. Disconnect the PV module DC wire connectors from the Microinverter.
5. Remove the Microinverter from the PV array racking.
B. Remove the opaque cover, Install a replaced Microinverter to the bracket.
Remember to observe the flashing LED light as soon as the new Microinverter is
plugged into the DC cables.
C. Connect the AC cable of the replacement Microinverter.
D. Close the branch circuit breaker, and verify operation of the replacement
Microinverter.
Follow the procedure to replace a failed Microinverter
WARNING: Be sure to verify the voltage and current specifications of your PV module
match with those of the Microinverter. Please refer to the datasheet or user manual.
WARNING: You must match the DC operating voltage range of the PV module with
the allowable input voltage range of the Microinverter.
WARNING: The maximum open circuit voltage of the PV module must not exceed
the specified maximum input voltage of the inverter.

- 14 -
500G/600G Microinverter Datasheet
UL1741,VDE0126,VDE4105,IEC62109,CE,INMETRO
10 Years
HY-500-Pro HY-600-Pro HY-600-Pro-127V
Model
Input Data (DC)
Output Data (AC)
Efficiency
Mechanical Data
Features
Recommended input power(STC) 210~400W(2 Pieces) 210~350W
Maximum input DC voltage 60V
25~55V
20~60V
13A
10.4×2
60V
25~55V
20~60V
13A
10.4×2
600W
600W
500W
500W
2.17A 2.884A/2.5A 4A
183~229V/211~264V184~265V 95~155V
50/47.5~51.5Hz
50/45~55Hz
60/59.3~60.5Hz
60/55~65Hz
60/59.3~60.5Hz
60/55~65Hz
2.7A
176~242V
60/59.3~60.5Hz
60/55~65Hz
>0.95 >0.95
8 5
95%
96.5%
99%
50mW
MPPT Voltage Range
Operating DC Voltage Range
Max DC short circuit current
Max input current
Peak output power
Maximum output power
Maximum output Current
Nominal voltage / range
Nominal frequency / range
Extended frequency / range
Power factor
Maximum unit per branch
CEC weighted efficiency
Peak inverter efficiency
Static MPPT efficiency
Night time power consumption
Ambient temperature range
Dimensions(W×H×D mm)
Weight (kg)
Cooling
Enclosure environmental rating
Compatibility
Communication
Compliance
Warranty
185×161×29(Without mounting bracket and cable)
-40 ℃ ~ +65 ℃
2.4
IP67
Compatible with 60,72 cell PV modules
Natural Convection - No Fans
Power line / WiFi / Zigbee

- 15 -
1200G/1300G Microinverter Datasheet
UL1741,VDE0126,VDE4105,IEC62109,CE,INMETRO
10 Years
Model
Input Data (DC)
Output Data (AC)
Efficiency
Mechanical Data
Features
Recommended input power(STC) 210~400W(4 Pieces)
Maximum input DC voltage 60V
25~55V
20~60V
13A13A 14A
10.4×4
1300W
1300W
6.25A / 5.416A4.34A 5.91A
183~229V / 211~264V184~265V 176-242V
50/47.5~51.5Hz
50/45~55Hz
60/59.3~60.5Hz
60/55~65Hz
60/59.3~60.5Hz
60/55~65Hz
>0.95
4
95%
96.5%
99%
50mW
MPPT Voltage Range
Operating DC Voltage Range
Max DC short circuit current
Max input current
Peak output power
Maximum output power
Maximum output Current
Nominal voltage / range
Nominal frequency / range
Extended frequency / range
Power factor
Maximum unit per branch
CEC weighted efficiency
Peak inverter efficiency
Static MPPT efficiency
Night time power consumption
Ambient temperature range
Dimensions(W×H×D mm)
Weight (kg)
Cooling
Enclosure environmental rating
Compatibility
Communication
Compliance
Warranty
298.5×287×36(Without mounting bracket and cable)
-40 ℃ ~ +65 ℃
6.3
IP67
Compatible with 60,72 cell PV modules
Natural Convection - No Fans
Power line / WiFi / Zigbee
HY-500-Pro HY-600-Pro HY-600-Pro-127V

- 16 -
Wiring Diagram
                      
meter
GROUND
JUNCTION
BOX
BLACK N
RED L
YELLOW PE
SUN500G-230-EU / SUN600G2-US-220/127
Router Monitoring system
WIFI Boost
MAX 8 SUN500G-230-EU / SUN600G2-US-220 per Branch MAX 5 SUN600G2-US-127 per Branch

- 17 -
                      
BLACK N (L2)
RED L (L1)
YELLOW PE
meter
GROUND
JUNCTION BOX
SUN500G-230-EU / SUN600G2-US-208/240/220/127
Router Monitoring system
WIFI Boost
MAX 8 SUN500G-230-EU / SUN600G2-US-208/240/220 per Branch MAX 5 SUN600G2-US-127 per Branch

- 18 -
                                
BLACK L2
RED L1
YELLOW PE
meter
GROUND
JUNCTION
BOX
SUN600G2-US-208/240
MAX 8 SUN600G2-US-208/240 per Branch
Router Monitoring system
WIFI Boost