CrownMicro CM Series AV Grid Connected Inverter User Manual

CrownMicro CM Series AV Grid Connected Inverter

Product Information

The CM series includes the following models: CM4KTL, CM5KTL,CM6KTL, CM8KTL, and CM10KTL. These models are designed for solar power systems.

• CM4KTL: Maximum output power of 5500W
• CM5KTL: Maximum output power of 6500W
• CM6KTL: Maximum output power of 8000W
• CM8KTL: Maximum output power of 10000W
• CM10KTL: Maximum output power of 12000W

The CM series inverters have the following features:

• Max.input MPPT current: 12.5A per MPPT for CM4KTL and CM5KTL,17A per MPPT for CM6KTL, CM8KTL, and CM10KTL
• Max.input short circuit per MPPT: 4000V for CM4KTL, 5000V for CM5KTL, 6000V for CM6KTL, 8000V for CM8KTL, and 10000V for CM10KTL
• Efficiency: 98.0% for CM4KTL, 97.5% for CM5KTL, and 99.9% for CM6KTL, CM8KTL, and CM10KTL

Product Usage Instructions

To use the CM series inverters, follow these steps:

1. Install the inverter in a suitable location with proper ventilation and away from direct sunlight or moisture.

2. Connect the solar panels to the inverter’s input terminals.
   Make sure to match the maximum input MPPT current and maximum input short circuit values of the inverter with the specifications of your solar panels.

3. Connect the inverter’s output terminals to your electrical system or grid connection point, following local electrical codes and regulations.

4. Ensure that all connections are secure and properly insulated.

5. Turn on the inverter using the power switch or control panel.

6. Monitor the inverter’s performance and check the LED indicators or display for any error codes or warnings.

7. If necessary, consult the user manual or contact customer support for troubleshooting or maintenance instructions.

Always refer to the user manual for detailed instructions specific to your model and consult a professional if you are unsure about any aspect of installation or usage.

Introduction

For readers
This manual is applicable for technicians of inverter installation, operation and maintenance. The readers shall be familiar with electrical knowledge.
About this manual
Please read this manual carefully before using products. This manual shall be kept in a place which is convenient to use. Operator using this manual must be a qualified electrical engineer certified by the local electrical authority.

Copyright
This manual updates are subject to products upgrades, and there might be some unconformity between the manual description and the products, and users can acquire the latest version from us.The manual updates are not to be further notified.

Applicable Models
This manual provides the installation, operation and maintenance of PV grid- connected inverters TP10KTL(6KW-10KW). The following models of inverter are related:

CM4KTL CM5KTL CM6KTL CM8KTL CM10KTL

Important safety instruction

Symbols in this manual
To ensure the personal and property safety in using the photovoltaic inverter and the high efficiency of the product, related safe operation notices are provided in the manual, and corresponding symbols are used for emphasizing the importance. These important notices must be fully understood and followed. Symbols used in this manual are listed below to help you carefully read and use this manual.

Danger

It means a highly potential danger which may cause a serious personal injury or death directly if this warning is neglected.

WARNING
It means a moderately potential danger which may cause a serious personal injury or death directly if this warring is neglected.

Caution
It means a lightly potential danger which may cause a light or moderate personal injury or serious property loss if this warning is neglected.

Notice
It means a potential risk which may cause device malfunction or property loss if this warning is neglected.

Tip
It means an additional notice emphasizing or complementing the content, or providing a tip for optimizing the product operation, and further helps you solve some problems or save some time.

It means a helpful reference or notice.

Symbols on the inverter
The inverter is attached with some labels related to operation safety. Please don’t install the device until carefully read through and fully understand these labels.

Safety instruction

Tip Please contact us if you have any problems .

CM10KTL inverters are designed, manufactured and tested as per international safety standards. However as an electrical and electric product, it must be installed, operated and maintained strictly according to related safety notices.
If you have any problems, please contact the nearest service center or authorized dealer. Please do NOT install or repair the product by anyone who is not qualified by local authority.
We are not responsible for any damage or loss caused by misuse or misunderstanding of the information in this manual.

WARNING

Misuse or misoperation mav harm:

• The personal safety of the operator or a third person.
• The property safety of the inverter or any other property.

Before installation

WARING

• The inverter cannot be connected to the grid unless approved by the electrical authority, and it must be installed according to the local standard and related standard for an electrical enterprise.

NOTICE

• Please check if there is any damage on the package or the product before installing. The inverter is electrical radioactived, Please choose a suitable place for installing.

During installation

Danger
Keep the PV array covered and the DC circuit breaker OFF. High voltage will be generated by PV array exposed under sunshine. All the cables must be connected firmly.

Notice
The inverter must be installed by a qualified electrical engineer certified by the local authority, and the installation manual must be read through before installation. It must be installed according to the local standard and related standard for an electrical enterprise.

Operation

• High voltage is a hazard, make sure keep the device away from children.
• Any touch with the device or terminal may cause electric shock or fire. Please follow all the safety instructions.
• A damaged device or system fault can cause electric shock. Make sure that you have checked the package and the device before installation to avoid unnecessary damage or loss.

Caution
Be aware of the hot surface while the device is running.

Repair

Danger
Completely switch off the connection between the inverter and the grid, DC side connection. Wait for 10 minutes until the internal elements are fully discharged.

Notice
Do NOT restart the inverter before all the hazards have been removed. Please contact your local dealer and always have licensed trader do the repairing.

EMC

EMC(Electro Magnetic Compatibility) means the resistance of a device or system against generating any Electro Magnetic interference to the environment without influencing the normal operation in the Electro Magnetic environment.

• Immunity to the own noise; Immunity to the internal electrical noise.
• Immunity to the external noise; Immunity to the external Electro Magnetic noise.
• Noise radiation level: influence of electro-magnetic radiation to the environment.

Notice

• The electromagnetic radiation of the inverter is harmful for health.
• Please never stay within 20cm from a running inverter for long.

Product Description

Product applicability
By CM10KTL inverter, the DC voltage generated in the PV array can be transformed into AC voltage and supplied to the grid. The PV power generating system consists of PV arrays, inverters, meters and a public grid.

The research, development and manufacture of CM10KTL are integrated with the most updated techniques and public confirmed safety regulations.
However, improper operation or misuse may still cause injury or loss.
Instruction and information provided in this manual must be followed all the time.

Circuit structure
Fig.2-2 shows the internal functional diagram of CM10KTL inverter.After the PV array input enters the voltage boosting circuit via the filter circuit, the input DC voltage is boosted and stabilized to BUS value for the full-bride inverter circuit, and in this process, the MPPT tracker in the inverter will ensure the DC energy generated in the photovoltaic array can be used by the inverter circuit at maximum and the DC current will be conveyed into the grid.
The joint of the input and output MC can effectively reduce the interference between the inverter and outside.CPU1 and CPU2 control the inverter operation and monitor the operation state, and in any abnormal working condition, it will protect the inverter and external device and personal safety according to the reserve program thus extremely improve the stability and reliability of the system.

Product introduction

Electrical connecting part

Tab. 2-1: Description for the electrical connecting part of the inverter

DC- (1/2)

| The negative part of terminals connecting the PVarray
WiFi/RS485| Communication mode
AC Output| Connected to the grid

Instruction
A DC switch is recommended in consideration of safety, in some countries, it is imperative for the connection of PV array and inverter; users can select a proper type for S series inverters accordingly.

Dimensions and weight

Notice
Waterproof I/O terminals are located at the bottom of the inverter.Be cautious when handling and installing to prevent any damage.

Tab.2-2: Inverter weight

Model Model Model

Model

| CM 5 KTL| Weight Weight Weight

Weight

| 22| kg
CM 6KTL| 22| kg
CM 8KTL| 22| kg
CM10KTL| 22| kg

LCD Displaying panel
The inverter is totally computerized and all the status are displayed on the LCD screen, the screen is also sound-sensitive, it will turn into sleep mode in 2 minutes with no operation. You can wake up the screen just by slightly click on the plastic shell around the LCD displaying panel.

Installation

Safety instruction

Danger
The DC voltage at the PV array and the AC voltage at the grid side are both higher than the safe voltage.
It is forbidden to touch any electrified terminal directly.
Make sure the DC side is not electrified before installation and maintenance.
The inverter must be installed, operated or maintained as per the following standard and instruction, and it can not be connected to the grid for power generating unless approved by the local power supply authority, and all operation must be performed by a qualified electrical engineer.

• A running inverter has a very high voltage, so no internal operation can be carried out within 10 min at least after the AC and DC power supply of the inverter is turned off. Please make sure there is no dangerous residual current by measuring the DC voltage with a multimeter to ensure that the capacitors are fully discharged.
• Caution the hot surface of the inverter. For example, the heat radiating from the power semiconductor will remain at a high temperature after the inverter is shut down.
• The inverter is delivered without any user’s self-maintenance components, so please contact the local authorized installation and maintenance technician if maintenance needed.

Installation procedures

See the following instruction for details.

Preparation before installation

Unpacking and checking
The product is carefully tested and checked before transportation, however it is still possible to be damaged during transportation, please check the device again before installation. If any damage, please contact the transportation agency or directly contact our company. Please take picture of the damage; best and efficient help will be offered.

Tab. 3-1: Package list

2

| Installation Back Board| 1|
3| Positive DC Connector Packet| 2| For the connection of PV panel
4| Negative DC Connector Packet| 2| For the connection of PV panel
5| AC Connector Packet| 1| For the connection of grid
6| Euro Terminal Block Packet| 1| For the RS485 communication
7| Installation Screw Packet| 1| For the back board installation
8| User Manual| 1| Please read through carefully
9| WiFi setup Guide| 1| Instructions on connecting your inverter

tovourWiFi

10

| Installation Guide| 1| Instruction on how to install the inverter

11

| Package List| 1| Check the delivery according to the packa!le list
12| Warranty Card| 1| Please well keep for filling and returning us

if +h • h m “‘ • •,Ii+n+h'”” rt •

13| Certification| 1|

Preparation for tools
The following tools will be used for installing the inverter:

Selection for a installation position

Danger
Some parts (e.g.: heat radiator) of the inverter runs with a high temperature, so it is not suitable for installing near inflammables or explosives.

Notice

• When selecting an installation position, please avoid the influence of noise and electromagnetic radiation to the environment.
• The inverter can not be installed near any place of high external electromagnetic radiation(e.g.: a TV tower, communication signal tower or HV cables).
• The inverter performance will be degraded if the environmental temperature is 45 C above. Make sure the inverter is installed in a well ventilated place so that the power generation can be maximized.

Detailed requirement for installation position:

• The inverter with a protection level of IP65 can be installed in the open air.
• The inverter can not be installed under direct sunshine, or the internal temperature of the inverter will be excessively high and thus the inverter performance will be degraded for protecting the internal elements; or even the temperature protection will be activated by the excessively high temperature.
• The inverter shall be installed in a cool & dry place with temperature from -25 C- +60 C;The environmental relative humidity is not higher than 95% and without any condensation.
• The inverter LCD shall be leveled with eyes and with enough space in the front for inspection.
• To avoid burning or electric shock, the inverter shall be installed beyond reach of children. The temperature of some parts (e.g. : the heat radiator) is high when the inverter is running.
• Make sure the installation position does not shake.
• The inverter shall be installed in a well ventilated place to ensure the normal heat radiation.
  • The installation place shall be firm enough to support the inverter weight.
• The inverter shall be installed on a vertical wall. or within 15°at most if backwards to the wall.
• Connecting terminal is located at the bottom.

Tab.3-2: Effective spacing dimensions

Inverter installation
Please check that the open circuit voltage, short circuit current and maximum power at STC of the PV array are Danger within the capacity of the solar inverter.
The full load MPPT voltage range is within the 250V-850V.

Installation Guide

1. Take out the back board and fix it to the wall; then peel the four green logos on the back board and attach them to the wall through the hole. Thus the installation holes are marked.
2. Drill holes in the marked position as per the size of expansion screws.
3. Insert the expansion tubes into the hole, knock the tubes into the hole and make them level with the wall surface.
4. Fix the back board to the wall using the tapping screws tightly.
5. Keep the inverter tilts slight upward, and attach it to the wall bracket slightly to the top of its final position, and then visually check if the inverter is correctly installed on the bayonet
6. After installing the inverter, adjust the screw on the back of the box to ensure that the inverter is parallel to the wall.
7. The installation is finished

Electrical connection

After the inverter is correctly installed on the wall or support, the next step is the electrical connection for the inverter. Electrical connection must be performed according to related safety standards.

Danger
A misoperation electrical connection may cause personal injury or death or damage the inverter irreversibly. Wiring operation must be performed by a qualified electrical engineer.

Warning
All electrical installation must be complying with local and national electrical standards.

• The inverter cannot be connected to the grid unless approved by the local electrical authority and all electrical connections are completed by a qualified electrical engineer.
• Please use cables of specification recommended by us, or the system safety may be degraded.
  The electrical connection for an inverter covers electrical cable connection and communication cable connection.

Electric and electrical system structure
The electric and electrical connection for the whole solar energy power generation system is shown as below:

There are two independent MP trackers in inverter, each MP tracker has two pairs of DC input terminals. The connection type refers to Fig.3-11. Keep DC switch in an “OFF” state and make sure that:

Tab.3-3: suggested max power input

• Each string of solar panels in series should be of same type and specification.
• Open Circuit Voltage of each string should not exceed 1000VDC
• The two string of same MPP tracker should have same number of solar panels.

Take Model. TP10KTL as example, the panel power of each MPP tracker should not exceed 6kw, the total power of inverter should not exceed 12kw.
Recommended Voltage/Current for AC Breaker is 400V/30A.
If the inverter is equipped with “AC Breaker including the RCD”, the parameter of the RCD refers to the following:

Tab.3-4: suggested RCD parameter

Wiring terminals and cable specification

1. DC wiring terminals
   The DC side of inverter has 4 terminals totally, including two DC positive wiring terminals and two DC negative wiring terminals. See the figure below :
   The wring terminals as following:

2. AC terminals

3. Communication terminals

4. Cables of the following specification will be equipped by the user.
   Tab.3-5: Recommended cable specification

Steps for electrical connection

Danger

• Please cover the PV array by lightproof material or switch off the DC circuit breaker before electrical connection. A dangerous voltage will be generated by the PV array exposed in the shine.
• If the inverter has been electrified and tested before connection, wiring can not be performed unless the AC and DC power supplies are cut off for 10min and a multimeter shows that the DC side is tatally discharged.

Caution
When designing the PV array, make sure the maximum open circuit voltage is not higher than 550V at each series of PV group. Otherwise the inverter will be damaged irreversibly

Tip assembling. For example: the positive pole is connected by a red cable and the negative by a blue cable.

• In order to balance each PV series, Cable shall be with the same sectional area.
• DC cable between the inverter and the assembly shall be the special PV cable. The voltage drop from the terminal box to the inverter is about 1-2%. It is recommended the inverter is installed on the assembly support for generation to reduce the cable cost and the DC loss.
• High performance and high quality PV array shall be used. The open circuit voltage in the serial array must be lower than the maximum DC input voltage in the PV grid-tied inverter, and the working voltage of the serial array must comply with the MPPT voltage of the inverter.

Notice

• Protect the LCD panel during wiring;
• Protect the LCD panel and other elements from scratch or damage by cables or tools.

Steps for DC connection

Steps for DC cable wiring

1. Using the striping tool to cut the PV cable, and makes the cooper wire reveal as 0.7cm.
2. Using the crimping tool and put terminal into mold of crimping tool, The terminal size is 4.0mm, so put it into the mold of 4-6mm.
3. Process crimping.
4. Crimp closely between the terminal and PV cable.
5. The terminal is crimped well with PV cable wire.
6. Put terminal into connector.
7. The DC wiring finished.

Steps for AC connection

Steps for AC cable wiring:

1. Insert the AC cable through the threaded sleeve and pressure screw as shown below:
2. Connect the AC wire following the instructions below.
   • Connect Live Wire L1 to the hole L.
   • Connect Live Wire L2 to the hole numbered 1.
   • Connect Live Wire L3 to the hole numbered 2.
   • Connect Neutral Wire to the hole N.
   • Connect PE to the hole marked .
3. Confirm all the wires should be screwed down.
4. Screw down the threaded sleeve and the pressure screw.
5. The AC connection finished.

DC/AC terminal connection:

1. Make sure that the DC/AC breaker is switched off.
2. Insert the DC+/- wiring terminal into corresponding DC+/- terminal.
3. Insert the AC wiring terminal into the AC terminal.
4. Switch on the AC breaker.
5. Switch on the DC breaker.

Earthing requirement

Caution
The inverter is a device with no transformer, neither the positive nor the negative pole of the PV assembly can be earthed, or the inverter will not work normally, or even be damaged irreversibly.
In TP10KTL series PV power generating system, all device shells, assembly supports and the GND terminal of the inverter must be safely and reliably earthed.

Trial operation

Check before operation

Warning
Necessary safety check must be performed before the inverter is electrified for trial operation!

1. Check for reliability of mechanical installation
   Check if the inverter is firmly installed and if all bolts are reliably tightened. For an inverter installed on a metal supporter, make sure each bolt is tightened and support has enough load bearing capacity.

2. Check for connecting cables
   Check if all cables in the system are firmly connected without any missed or wrong connection, and especially check if all positive and negative poles are correct. If a DC switch is equipped on the inverter, the DC switch shall be turn to the “OFF” state.

3. Electrical check
   Make sure the DC input voltage of the inverter is lower than 1000V (with the temperature decrease of the PV array, the open circuit voltage will be increased, so a residual voltage at the low temperature must be put into consideration).
   Make sure the grid parameters are complying with the inverters parameters.

Electrify the inverter
The inverter can be started up as per the following steps after all testing and checking steps are performed Switch on the AC breaker.
Switch on the DC breaker, and turn the DC switch to the “ON” state.

See Part 5 of this manual for “Human-machine interaction” after the inverter is started up. If enough power energy can be generated in the solar array, the inverter will be started up automatically, and LCD will display the normal status which means the inverter is successfully started up. If the inverter is not normally started up, please refer to Part 6 “Troubleshooting and maintenance”

Human-machine interaction

LCD interface

Tab. 5-1: Introduction to symbols on the LCD panel

Inverter working mode
After the inverter is started up, the normal working state will be switched as per the chart below:

Standing-by mode
When the DC voltage is higher than 250V but lower than 320V, the inverter will enter the sleep mode. In this case, the inverter will keep monitoring the DC voltage, and will enter the ready mode once it reaches the working voltage 320V.

Ready mode
When the DC voltage is over 320V, the inverter will enter into the ready mode.
In this case, inverter start hardware self-checking.and after the self- checking is over, the inverter will enter power-generating mode.

Power generating mode
When the external condition satisfies the power generating condition, and the after the self-checking gets through, the inverter will enter into the power generating mode.

Protection mode
If any external fault such as AC side grid fault is detected by the inverter, the inverter will stop power generating and enter the protection mode, in this case the protection indicator on LCD panel will show and display the corresponding protection code. Troubleshooting can be performed by the user according to this code.The inverter will keep monitoring the external fault, and will stay in the protection mode unless the fault is removed. It will reenter the grid-connect power generating mode one minute later after the fault is removed.

Fault mode
If any internal fault is detected by the inverter, the inverter will stop power generating and enter the fault mode, in this case fault indicator on the LCD panel will show and display the corresponding fault code.
Troubleshooting can be performed by the user according to this code. The inverter will keep monitoring till the internal fault is removed. It will reenter the grid-connect power generating mode if the fault is removed.

Notice
In the morning and evening, the light intensity is weak and changeful, thus the LCD keep flashing.In order to avoid the user’s trouble, and the LCD will light up when it enter into the power generating mode. In other mode, if the user wants to check the relevant data of the inverter, he can tap the inverter body and wake up the LCD.
When the inverter enter into the protection and fault mode, its corresponding protection and fault code may also appear twice or more. At this time, the protection or fault code display space below the LCD display screen will alternately display a variety of protection or fault code every 2 seconds.

LCD panel power saving mode
The LCD will enter sleep mode if no operation last for 2 minutes, to wake it up please tap on the shell slightly.

LED blink table

Lightened constantly

Aashlng

Troubleshooting and maintenance

Troubleshooting
This part introduces the common fault and solving steps, provides troubleshooting method and skills to the user, and helps the user identify and solve some common fault of the inverter.
Faults mentioned in this part means the inverter enters the Tip protection state or fault state.
The protection state is mostly caused by some external reasons, the inverter output is not matched with the grid, the grid is power off or the system is not correctly earthed, and thus the inverter acts to ensure the own safety. The inverter itself has no defect and can recover from the protection state if the system is correctly designed and installed.
Sometimes the inverter enters the protection state by the own defect and can be recovered by resetting or repairing.
The fault state is caused by incorrect design of system, e.g: the DC voltage is too high, and thus the inverter acts to protect the system safety. The inverter can be recovered from some faults automatically or by resetting, and some faults are caused by the own defect of the inverter, and in this case the inverter cannot be recovered and shall be repaired.

Correctly identifying the fault state of the inverter is helpful for solving the fault,so please threat as per the following steps:

1. Check if the status displayed on the panel is a protection state or fault state, and record all error codes.
2. Try the solution listed in Tab.6-1 and 6-2 and meanwhile check as per the following steps.
   • If the voltage at the AC/DC side is normal and if the breaker is switched on?
   • If the inverter is installed in a clean, dry and well-ventilated place?
   • If the cable sectional area satisfies the requirement?
   • If the connecting cables is too long?
   • If all cables are firmly connected?
   • If wiring is reasonable?
   • If the safety standard setting is correct?
3. If you meet any problem that you cannot solve by yourself, please contact the client service man for the optimal solution, please provide the detailed system installation information, inverter model, serial number and fault information.

Tab. 6-1: Protection code and solution

Displayed code

|

Protection description

|

Recommended solution

---|---|---

P001

|

The leakage current is too high

| 1. Cut off the DC breaker and check if there is abnormity in the AC side.

2. After the fault is removed, close the DC breaker and restart the inverter. 3.lf the fault occurs repeatedly, please ask for professional service.

P002

| The voltage at the grid side is too high|

1. Check if the inverter is normally connected to the grid.

2. Check if the grid voltage and frequency are complying with the output scope of the inverter.

3. lf the fault above is removed but the inverter can still not work normally, please ask for professional service.

P003| The voltage at the grid

side is too low

P004

| The frequency at the grid side is too high

PODS

| The frequency at the grid side is too low
P006| Islanding protection

P007

| The DC voltage is too low| The inverter will recover automatically when the light is sufficient.

P00B

|

Output short circuit

| 1. Check if the inverter is normally connected to the grid.

2. Check if the grid voltage and frequency are complying with the output scope of the inverter.

3. lf the fault above is removed but the inverter can still not work normally, please ask for professional service.

P009

|

Output current DC offset is too high

P010

|

Internal synchro communication fail

| 1. Switch off the DC breaker and wait 1 minute.

2. Switch on the DC breaker and check if the inverter can auto reboot.

3. lf the fault occurs repeatedly, please ask for professional service.

Displayed code

|

Protection description

|

Recomrrended solution

---|---|---
P011| Phase loss| Check whether all the three phase lines

are connected to the grid.

P012| Over temperature| The inverter will recover automatically when the temperature gets lower.
P013| Bus unbalance| The inverter will recover automatically.
P014| Utility not three phase| Check whether all the three phase lines are connected to the grid.
P015| Relay open| The inverter will recover automatically.

Tab. 6-2: Fault code and solution

Displayed code|

Fault description

| Recommended solution
---|---|---

E001

|

The insulation resistance is low

| 1.    Switch off the breaker.

2.    Check if the resistance between the

+/ – poles of the PV1&PV2 assembly and the ground is larger than 1MO.

3.  lf the fault above is remove but the Inverter can still not work normally , please ask for professional service.

E002

|

The DC voltage is too high

| 1.  Switch off the DC breaker.

2.  Check if DC voltage is higher than 1000V

3.  If the fault above is removed but the inverter can still not work normally, please ask for professional service.

E003

E004

|

The DC input current is too high

| 1.  Switch off the DC breaker.

2.  Check if t he system is designed incorrectly(DC power too high).

3.  If the fault above is removed but the inverter can still not work normally, please ask for professional service.

EOOS

Daily maintenance
It is unnecessary to maintain the inverter in normal conditions but it is necessary to make sure the inverter is not covered by dust.

• Cleaning
  The inverter can be cleaned by electric compressed air blower, dry soft cloth or soft brush. Please never clean the inverter by any water, corrosive chemical agent or cleaning agent.

• Heat radiation
  To protect the normal operation and prolong the service life of the inverter, the inverter must be installed in a well ventilated space without any air barrier surrounding the heat radiator at the back of the inverter, and dust or snow must be removed timely if any.

Uninstallation

The inverter shall be treated as per the following steps if it is to be replaced or out of service.

Uninstalling steps

1. Switch off the AC breaker.
2. Switch off the DC breaker.
3. Wait for 1 0min till the inverter is fully discharged.
4. Check by a multimeter and make sure neither the AC side nor the DC side is electrified.
5. Press the right position of the terminal as Fig.7-1,When you hear a “click”, then you can pull out the positive and negative DC terminal adaptor as Fig.7-2.

Packing
Please pack the inverter with the original package if possible. If the original package is not available, please pack with a carton satisfying the following requirement.

• Firm enough for 45kg.
• Easy for handing.
• Fully closeable.

Storing

The inverter must be stored in a dry and clean place of -30 “C- +80 “C.

Solution at the termination of service period
At the termination of inverter service period, please send the inverter and package material to the designated place for electronic waste treatment.
Contact the related authority for treating and recovering if necessary. No inverter or any part can be disposed at random.

Technical parameters

Tab. 8-1: Technical parameters

Quality assurance

Warranty Policy
For our customers we provide 5 years standard warranty from the date of installation, you can also upgrade your standard warranty to 10 years. Please keep the purchasing invoice and trade mark clear for warranty. For more information, please contact your local dealer.

Exception clause
Any of the following situation will not be covered by our warranty policy:

• Use of undesigned purpose.
• Incorrect system design.
• Incorrect installation.
• Use of any unacceptable in the system.
• Misuse or improper operation.
• Any unauthorized modification or repairing.
• The inverter is damaged by any force majeure(electric shock, fire accident,earthquake or seaquake, ect).
• Operating beyond safety regulations.
• Damage during transportation.

Warranty card
Tab. 9-1: Warranty card

Warranty Card

Customer Information
Name:
Address:
Zip Code: E-mail:
Tel: Fax:

Installation Information

PV module type (parameters): Modules Per String:
Number of Strings: Installation site:
Installation Company: Installer Name:

Inverter detailed Information

Fault Time:
Number of used Products:
Date of Bill of Lading:
Fault Messages:
Model of Products:
Number of Fault Products:
Brief Fault Description and Photos (Can be attached):
Customer Signature: Date:

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