MPP Solar Grid PV-Inverter 10Kw User manual

Grid PV-Inverter
Installation and Operation Manual
Version 3.0E
10Kw

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Content
READ THIS USER MANUAL BEFORE YOU START ....................... 4
1. SAFETY INSTRUCTIONS ............................................................. 5
2. LIMITED WARRANTY ................................................................... 7
3. OVERVIEW .................................................................................... 8
3.1 INTRODUCING THE GRID PV SYSTEM .............................................................................................8
3.2 INTRODUCING INVERTER ..............................................................................................8
3.2.1 Dimensions of Inverter..........................................................................................9
3.2.2 Identification........................................................................................................................10
3.3 INTRODUCING GRAPHIC DATA LOGGER ........................................................................................12
3.3.1 Configuration.......................................................................................................................13
3.3.2 Features ...............................................................................................................................13
3.3.3 Connection...........................................................................................................................13
3.3.4 Appearance ..........................................................................................................................14
4. FEATURES .................................................................................. 15
5. INSTALLATION............................................................................ 16
5.1. INSIDE THE PACKAGE ...................................................................................................................16
5.2. MOUNTING INVERTER ................................................................................................16
5.3. CONNECTING THE AC-OUTPUT CABLE ........................................................................................22
5.4. CONNECTING PV-PANEL ..............................................................................................................25
5.5. CONNECTING TO THE JUNCTION BOX ...........................................................................................27
5.6 POST INSTALLATION CHECKLIST...................................................................................................28
6. OPERATION OF ........................................................ 29
6.1 AUTO POWER-UP ..........................................................................................................................29
6.2 OPERATING MODES ......................................................................................................................29
6.3 USING THE LCD DISPLAY AND DATA LOGGER ..............................................................................31
6.3.1 Operation.............................................................................................................................31
6.3.2 Display on LCD...................................................................................................................32
6.3.3 Data Logger Function Tree: ................................................................................................35
7. COMMUNICATION INTERFACE................................................. 40
7.1. RS-232 (ON INVERTER)................................................................................................................40
7.2. OPTIONAL COMMUNICATIONS SLOT FOR RS-485 ......................................................................... 40
7.3. USB (ON DATA LOGGER) ............................................................................................................. 40
8. DOWNLOADING DATA INSIDE DATA LOGGER ....................... 41
8.1. HOW TO EJECT /INJECT THE DATA LOGGER..................................................................................41
8.2. HOW TO ACCESS AND MANAGE LOG DATA ..................................................................................42
9. TROUBLESHOOTING................................................................. 46
10. PREVENTATIVE MAINTENANCE.............................................49
10.1 VISUAL INSPECTION....................................................................................................................49
10.2 CHECKING AND MAINTENANCE ..................................................................................................49
11. SPECIFICATIONS...................................................................... 50
10KW PV
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12. DISPOSAL................................................................................. 51
13. CONTACT INFORMATION.........................
14. COMPLIANCE OF STANDARDS.............................................. 52
15. LOAD GRAPH AND EFFICIENCY GRAPH ..............................53
APPENDIX I: LINE LOSSES OF THE INVERTER.......................... 54
APPENDIX II: SELECTING THE LINE CIRCUIT BREAKERS ....... 55

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Read this User Manual before you start
Congratulations on purchasing Grid PV-Inverter (referred to in this
manual as “PV-Inverter”, or simply “Inverter”). This PV-Inverter is a highly
reliable product due to its innovative design and excellent quality control. The
device is dedicated to high demand, 3 phase grid-linked PV systems.
Additionally this product is IP65 rated for dusty or humid environments and is
suitable for outdoor use.
This manual contains important information regarding installation and safety
operation of this unit. Be sure to read this manual carefully before using
PV-Inverter.
If you encounter any difficulties during installation or operation, please refer to
this manual before contacting your local dealer or representative. Thank you
for choosing our product. Please keep this manual on hand for quick
reference.
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1. Safety Instructions
Risk of Electric Shock:
Alternating Current (AC) and Direct Current (DC) sources are terminated
in this device. To prevent risk of electric shock during maintenance or
installation please ensure that all AC and DC terminals are disconnected.
Be sure to secure the Ground line to the Grid’s Ground, and double check
the Line and Neutral are not confused with Ground.
Risk of Electric Shock:
When PV module or panel is exposed to light, it starts to supply DC
voltage, be sure to turn off DC switch before servicing, or make sure no
live part will be touched.
Risk of Electric Shock:
Warning - High leakage current, earth connection is essential before
connecting to the utility.
Risk of Danger:
More than one source of supply. Disconnect all sources before servicing.
Handling PV-Inverter:
Only qualified service personnel should handle PV-Inverter. When the

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PV-panel is exposed to sufficient radiation and connected to the device, it
generates a DC voltage to charge the DC link capacitors.
After disconnecting the PV-Inverter from the power supply and PV-panel,
electrical charge can still reside in the DC link capacitors. Before handling
the device, please allow at least 8 minutes after the power is
disconnected.
Public Utility only:
The PV-Inverter is designed to feed AC power directly to the public utility
power grid. Do not connect the AC-output of this device to any private AC
equipment.
Hot Surfaces:
Although designed to meet international safety standards, the PV-Inverter
can become hot during operation. Do not touch the heat sink or
peripheral surfaces during or shortly after operation.
Maintaining and Servicing PV-Inverter:
Only authorized personnel are allowed to open the inverter for
service purpose.
CAUTION – Risk of electric shock from energy stored in capacitor,
do not remove cover until 8 minutes after disconnecting all sources
of supply.
Unpacking and Installation:
The PV-Inverter weighs 33.9 kg (74.7 lb). To avoid injury and
for safety purpose, be sure to use proper lifting techniques and secure
the help of someone to assist in the unpacking and installation of the
inverter.
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2. Limited Warranty
PV-Inverter comes with a 5-year warranty. An optional extended
warranty may be available by special request before delivery. This warranty
covers all defects due to design, manufacturing and components. This
warranty does not cover damages resulting from:
Seal on the product is broken
Improper transportation and delivery
Unqualified persons opening the unit
Improper installation
Unauthorized modification, test or repairing
Use and application beyond the definition in this manual
Application beyond the scope of safety standards (e.g. VDE)
Acts of nature such as lightning, fire, storm etc.
Repairs and/or replacement of parts or the device are made at the
manufacturer’s discretion. Defective parts or malfunction discovered during
installation should be presented in a written report for confirmation before
applying for replacement or repair. The damage report must be issued within
seven working days after receiving the PV Inverter. Manufacturer is not
responsible for damages beyond the scope of this warranty.
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3. Overview
3.1 Introducing the Grid PV System
The Grid PV System is mainly composed of 5 parts: PV-panels, the
PV-Inverter, DC-Connection Unit, AC-Connection Unit (connection Interface)
and a connection to the Public Utility. When PV-panel is exposed to sufficient
irradiation and connected to an inverter, it generates DC power. The
PV-Inverter converts DC to AC and feeds in to the Public Utility via the
AC-Connection unit.
The following figure shows the PV-Inverter in the Grid PV System.
3.2 Introducing Inverter
grid-connected PV inverter converts direct current (DC) power
generated by PV panel into alternating current (AC), which is compatible with
the local electricity distribution network; also called the public utility, or grid
system.
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The 10KW

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3.2.1 Dimensions of Inverter
The dimension is in millimeters.
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3.2.2 Identification
On the left side of shows the type plate of the inverter. The type
plate shows the Type, Specifications, and the Serial Number of the inverter.
When encounter any difficulties during installation or operation, please record
the Serial Number (SN) before contacting your local dealer or representative.
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3.2.3 Specific Parts of10KW PV Inverter
The descriptions of the major parts of 10KW PV Inverter are indicated below:
(1) 3 Pairs of DC-Input Terminals: Each input pair consists of positive and
negative terminals. Refer to Installation Section for set-up information.
(2) Cooling Fan: The inverter is equipped with 3 air cooling fans to eject heat
dissipated by the heat sink. When the temperature of heat sink reaches 50ºC,
the fans automatically turn on.
(3) RS232 Interface: Connect this port directly to your PC via an RS232 serial
cable.
(4) AC-Output Cable Gland: The cable gland is for securing the AC power
wires L1 (phase R), L2 (phase S), L3 (phase T), N (Neutral), Gnd (PE):
4/6mm2
(5) Ground (PE) Cable Gland: The cable gland is for securing the Ground
(PE) wire for safety purpose. Refer to Installation Section for set-up
information. G (Ground, PE): 10mm2wires.
(6) Optional Communication Slot and Cover: The cover behind is a slot to
accommodate the optional communication interface, such as RS485 card.
(7) Graphic Data Logger: This device displays and records useful
information about the inverter operating status.

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3.3 Introducing Graphic Data Logger
To show the information of inverter, there is a graphic Data Logger in the unit.
This Data Logger can show various information of the inverter such as
operational status and warning message. In addition, it can be removed from
its slot to a place user prefers. A standard 1.8-meter cord is attached with the
Data Logger. If the user wishes to extend the length, a standard RS232 (DB9)
cable of maximum 15 meters in length can be used for communication
purpose.

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3.3.1 Configuration
The following table indicates the main specification of the Data Logger:
LCD Monochrome
Displayed
Information Each I/P power, O/P power, Operation mode and warning
message
Storage Period 3 years
Storage Media SD card
Data Download Via mini USB
3.3.2 Features
Removable Data Logger
The Data Logger is removable from its inverter. The display is a module
designed so that users can remove and remount the module easily.
Between the display module and inverter, there is a standard DB9 RS232
cable at length of 1.8m in-between. The display can be mounted on wall
after taking out from its slot at inverter.
Multicolored back light
The backlight of the LCD changes according to its status. There are 3
colors and their indications are:
Green: Start-up and normal status
Red: Fault Status. In this status, inverter disconnected from grid due
to system fault or inverter failure. These faults and failures are
defined in “error message table” later on.
Yellow: Warning Status. Inverter disconnected from grid due to
system fault within the past 48 hours, but inverter reconnected.
Data download
You can download and access logger data with a PC via mini USB cable
and manage internal data. For detail information, please refer to 8.
Downloading data inside Data Logger.
3.3.3 Connection
The Data Logger can be either located on the inverter or remotely
mounted on a wall. A 1.8-meter cord connects the Data Logger and the
main inverter unit (Mechanical will provide the information)

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3.3.4 Appearance
LCD: 128 x 64 graphic, monochrome
Navigation Pad: “↑”, “↓”, “→” , “←” and “OK” in the center.
Back light: 3 colors
Pac:0W
TEMPERATURE:42.8℃
Iac:0.0/0.0/0.0A
Vac:219.4/219.3/219.3V
STATUS:Normal
0
2/12/09 15:59
Pac:0W
TEMPERATURE:42.8℃
Iac:0.0/0.0/0.0A
Vac:219.4/219.3/219.3V
STATUS:Normal
02/12/09 15:57
Pac:0W
TEMPERATURE:42.8℃
Iac:0.0/0.0/0.0A
Vac:0.0/0.0/0.0V
STATUS:Fault
No Utility
02
/
12
/
09 15:58

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4. Features
Lead-free, RoHS compliant
High conversion efficiency
3 MPP (Maximum Power Point) trackers
IP65 enclosure
128x64 graphic display
3-phase 4 wire, 400V
Compact design
High reliability
Easy operation
Maintenance free
Powerful Communications Interface
Embedded ENS, complying with VDE 0126-1-1
Internal GFCI (Ground Fault Current Interrupter)
Supports active power reduction in 10% steps via Solar-Log 1000PM.

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5. Installation
5.1. Inside the Package
The following items are included in the Package:
(1) PV-Inverter x 1
(2) Installation and Operation Manual x 1
(3) Mounting Screws(M4) x 4 and Snap Bushings x 4
(4) Safety-lock screws x 2
(5) Mounting Bracket for the inverter x 1
(6) Service Card x 1
(7) Mounting plate of the data logger x 1
(8) Screws for mounting the data logger x 2
(9) AC Output Cover x 1
(10) Rubber Bushing for AC connection (2 types)
5.2. Mounting10KW PV Inverter
Suggestions before mounting
To obtain optimal results from PV-Inverter, please consider the following
guidelines before installing the device:
D
Do o n no ot t e ex xp po os se e t th he e P PV V- -I In nv ve er rt te er r t to o d di ir re ec ct t s su un nl li ig gh ht t. . D Di ir re ec ct t s su un nl li ig gh ht t
i
in nc cr re ea as se es s t th he e i in nt te er rn na al l t te em mp pe er ra at tu ur re e t th ha at t m ma ay y r re ed du uc ce e c co on nv ve er rs si io on n
e
ef ff fi ic ci ie en nc cy y. .
Check the ambient temperature of installation is within specified range
-20 ~ +55C.
The AC grid voltage is 400Vx3, -15% +10%, 50Hz.
Electric utility company has approved the grid connection.
Qualified personnel are performing the installation.
Adequate convection space surrounds the inverter.
Inverter is being installed away from explosive vapors.
No flammable items are to be near the inverter.
No mounting on wooden flammable surface.
The inverter can be installed and operated at locations where the ambient
temperature is up to 55 degree Celsius. However for optimal performance,
it is recommended to install the inverter at an ambient temperature from 0
to 40 degree Celsius.
The inverter can cause current with a DC component, where a GFCI (ground
fault current interrupter) device is used for protection of direct or indirect contact
with this product.

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To mount the inverter to a wall, please follow the steps:
（1） It is recommended to choose a dry place, out of direct sunlight with
ambient temperature between 0 and 40°C
（2） Select a wall or solid vertical surface which is strong enough to
support the inverter.
（3） The PV-Inverter requires adequate cooling space for heat
dissipation. Reserve at least 20cm above and 50cm (measured
start from the bottom of the AC cover) below the inverter. Each
inverter should have minimum of 30cm space to each other for
multiple inverters installation.
Note: Don’t mount PV-Inverter on top of another one or other heat
radiating sources unless you have to, in that case, 70cm spacing at
minimum from each other is required to provide proper ventilation effect.

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（4）Fix the Bracket by using Outer Mounting Holes:
（a）To install the device to a wall, mark 4 outer holes with
φ6.35mm at the back of the bracket as illustrated below.
（b）Drill the 4 marked holes in the wall, and then drive in the 4
Snap Bushings(φ6mm x L 30mm). Now insert the screws,
and tighten.
Note: Screw (M4) size is φ4mm x L 33.2mm.
（c）Mount the PV-Inverter onto the base plate as illustrated
below.

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（5）Fix the Bracket by Using Central Mounting Holes:
（a） To install the device to a narrow upright, mark 3 central
holes at the back of the bracket as illustrated below.
（b）Drill the 3 marked holes in the wall, and then drive in the 3
Snap Bushings. Now insert the screws, and tighten.
（6）Mount the PV-Inverter onto the bracket as illustrated:

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（7）Insert the Safety Lock screws to fix the PV-Inverter in place.
（8）Ensure the device is properly fixed to the bracket.