Table of Contents
Advertisement
Quick Links
Growatt New Energy Technology CO.,LTD
www.ginverter.com
Growatt CP250
PV Grid-Connected Inverter Installation Manual
Thank you for choosing the Growatt CP250. Growatt CP250 PV grid-connected inverter products
have high efficiency, wide MPPT voltage range, advanced DSP control technology, perfect
protection function enables PV systems more reliable operation, simple to operate, easy to
maintain. We believe that the product will be more widely used in a variety of industrial,
commercial and residential areas.
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Growatt CP250
Summary of Contents for Growatt CP250
- Page 1 Growatt CP250 PV Grid-Connected Inverter Installation Manual Thank you for choosing the Growatt CP250. Growatt CP250 PV grid-connected inverter products have high efficiency, wide MPPT voltage range, advanced DSP control technology, perfect protection function enables PV systems more reliable operation, simple to operate, easy to maintain.
-
Page 2: Table Of Contents
Growatt New Energy CO. LTD www.ginverter.com Content 1 About this Manual .......................... 4 1.1 Contents ..........................4 1.2 Target readers ........................4 1.3 How to use this Manual ...................... 5 1.4 Symbols explanation ......................5 2 Safety instructions .......................... 6 2.1 Installation ........................... - Page 3 7.1 Replacing the dust screen ..................56 7.2 Regular maintenance ....................57 7.3 Waste disposal ......................58 8 Appendix ........................59 8.1 Specification ......................59 8.2 software version ......................59 8.3 Growatt Factory warranty ..................60 8.4 Contact ........................61...
-
Page 4: About This Manual
This manual applies to Growatt CP250 PV grid-connected inverters, the manual contains: safety instruction Attention that needs to be paid when operating and maintenancing the Growatt CP250. Product description The role inverter plays in the photovoltaic grid-connection system and structure, principle, protection, operation mode, storage and package size of the Growatt CP250. -
Page 5: How To Use This Manual
4）The operator should be fully familiar with the local standards of the project. 1.3 How to use this Manual Read this manual before installation of the Growatt CP250. Store this manual where accessible at all times. The contents of this manual will be periodically updated or revised if necessary. However discrepancies cannot be excluded. -
Page 6: Safety Instructions
Growatt New Energy CO. LTD www.ginverter.com Caution，risk of electric shock WARNING When PV array exposed to sunlight, there will be DC voltage in the equipment DC side; and when output breaker is on, there is a potential risk of electric shock. -
Page 7: Installation
The inverter should be carefully checked before signing the document from the transportation company. Check the received items against delivery note, and if there is any defect or damage, immediately notify the transportation company. If necessary, you can seek help from Growatt Customer Service department. -
Page 8: Transportation
Growatt New Energy CO. LTD www.ginverter.com CAUTION The Growatt CP250 can only be stored when it is stopped and all the doors are closed in a dry room to protect the internal circuits against dust and moisture. 2.4 Transportation Transportation should follow the transportation methods described in the user manual. The inverter's weight and center of gravity of the non-centered should be taken into account during transportation. -
Page 9: Repair And Maintenance
Function and safety parameters Don’t change the parameters of the inverter without authorization from the local utility and Growatt New Energy Co., Ltd. Otherwise, it might lead to injury or equipment damage and the warranty of the inverter will be voided. -
Page 10: Inverter Emc And Noise Level
Growatt New Energy CO. LTD www.ginverter.com Electrical shock danger exists in the capacitor; the cover shall be moved at least 5 minutes later after all powers are disconnected. 2.7 Inverter EMC and noise level Electromagnetic compatibility (EMC) is the requirement for electrical equipment that it can operate normally in the electromagnetic environment and does not cause unacceptable environmental impact itself. -
Page 11: Product Description
3.2 Electrical schematic of the inverter 3.2 Circuit diagram the inverter Growatt CP250 PV grid-connected inverter converts DC current generated by PV array into AC current. Then the AC current is filtered into sine wave electricity and fed into the utility grid through a medium-voltage isolating transformer. -
Page 12: The Layout Of The Main Components
Growatt New Energy CO. LTD www.ginverter.com Figure 3-2-1 Growatt CP250 circuit diagram CAUTION Although the Growatt CP250 is no inner transformer, transformer is needed for solar power station. 3.3 The layout of the main components 3.3.1 External components External main components include: LED indicator, LCD touch screen and start-stop knob,... - Page 13 Growatt New Energy CO. LTD www.ginverter.com Figure 3‐3‐1 ‐1 Inverter appearance Name Descripition Power indicator When power supply is normal, the indicator displays yellow. Inverter malfunction indicator When inverter is faulty, the indicator displays red. touch Screen LCD Operation information display,...
- Page 14 Growatt New Energy CO. LTD www.ginverter.com Emergency STOP Shut down the inverter when pressed down DC Switch connect or disconnect the inverter and PV modules Grid Switch connect or disconnect the inverter and utility grid Dust screen prevent dust from entering into the inverter Figure 3‐3‐1 Part description...
- Page 15 Growatt New Energy CO. LTD www.ginverter.com lead to damage of the inverter. Emergency STOP CAUTION The emergency stop button is only used in case of emergency, such as: serious failure in the grid, fire, etc. Figure 3‐3‐1‐3 Emergency STOP The emergency stop button immediately disconnects the inverter from both grid and PV arrays, which ensure the safety of the inverter.
-
Page 16: Operation Mode
Growatt New Energy CO. LTD www.ginverter.com Figure 3‐3‐1‐4 Off-on knob Touch screen It displays the inverter’s operating parameters, power generation, and faulty information record. Please refer to Section 6, for details. 3.4 Operation mode There are several operation modes of the inverter. -
Page 17: Faulty Mode
Permanent fault mode, so as to ensure the safety of the system. For example: inverter module failure etc. When inverter enter into permanent failure mode, do not repair the inverter, and you should get in touch with the local dealers or call Growatt customer service department for help. -
Page 18: Protection
Retain the desiccant in the packaging. The Growatt CP 500TL can only be stored when it is stopped and all the doors are closed in a dry room to protect the internal circuits against dust and moisture. Storage temperature range: -40~55 ℃... -
Page 19: Dimension
Growatt New Energy CO. LTD www.ginverter.com CAUTION! Strictly prohibited storage without packing! Avoid storage in direct sunlight! Keep upright and no stacking on top of the crate. 3.7 Dimension Model Growatt CP250 Size(W*H*D mm) 1600*2100*850 Dimension 3‐7 Inverter dimension 3.8 Label... -
Page 20: Packaging Information
Growatt New Energy CO. LTD www.ginverter.com Figure 3‐8 product label 3.9 Packaging information Name Unit quanti description inverter main unit Contains cabinet keys user manual certificate OT terminal Table 3‐9 Packaging information... -
Page 21: Products Installation
Growatt New Energy CO. LTD www.ginverter.com 4 Products installation 4.1 Installation condition requirements To ensure normal operation of the machine, the installation environment is required as follows: The ingress protection of inverter is IP20. Moreover, as this product is an electronic equipment, it shall not be placed in humid environment;... - Page 22 Growatt New Energy CO. LTD www.ginverter.com 0.6m or more, the top 0.6m or more to ensure easy installation, cooling and maintenance. Figure 4-1-1 required Clearance space [Cable trench] The cable connection of inverter adopts bottom inlet and bottom outlet. Cable trenches are recommended.
- Page 23 Growatt New Energy CO. LTD www.ginverter.com degrees, while the distance can be reduced appropriately. Inverters for use with ungrounded arrays shall have means to measure the DC insulation resistance from the PV input (array) to ground before starting operation. [Ventilation requirement] In operation, inverter will produce a lot of heat.
-
Page 24: Tools And Spare Parts Required For Whole Machine Installation
Growatt New Energy CO. LTD www.ginverter.com ● If more air ducts are required, its dimensions shall be designed by the professionals according to the air output amount. Figure 4-1-2 Inverter internal ventilation diagram [Other protections] With IP20 of protection level, inverter is appropriate to be installed in dry and clean environment. -
Page 25: Mechanical Installation
Note 1: The inverter is integrated and cannot be dissembled either in transportation or installation. Any fault attributed to modification unauthorized by the Growatt is beyond the quality assurance. Note 2: In movement, tilt, violent shake or sudden force upon the inverter shall be prevented, such as sudden down of lifting. -
Page 26: Movement And Installation Of Bare Machine
Growatt New Energy CO. LTD www.ginverter.com The gravity centre Lifting logo Face up to prohibit the inverter horizontally, tilted or upside down Handle with care, to avoid the transport environment too intense collision friction damage to the inverter Keep away from moisture Figure 4-3-1 Packaging Inverters whose packages are not demolished can be moved with forklift, hoisting crane or crane. - Page 27 Growatt New Energy CO. LTD www.ginverter.com Procedure 1: Demolish the wood side and roof of the packaged cabinet Procedure 2: Demolish the out-set package material on the machine Procedure 3: Demolish the fastening screws between the machine and the pallet ①...
-
Page 28: Electrical Installation
Growatt New Energy CO. LTD www.ginverter.com Figure 4-3-2-3 Caution, risk of danger CAUTION! We must act slowly and gently when transporting the inverter with forklift to avoid violent vibration of the inverter or collision with other objects. 4.4 Electrical installation 4.4.1 Input and output requirements... - Page 29 Growatt New Energy CO. LTD www.ginverter.com loss even to death. PV array The positive and negative open-circuit voltage of the PV array shall not exceed 1000, otherwise, the equipment will be in over-voltage protection state, and cannot work normally. The power of inverter PV array can be 575KW.
-
Page 30: Preparation For Electrical Wiring
Growatt New Energy CO. LTD www.ginverter.com Grid Phase B Φ10，30N*m Grid Phase C Φ10，30N*m Earth Wire More than 120 mm² or 2* 35mm² Φ10，30N*m Green and yellow 0.75mm²，shielded Twisted pair Communication Wire 4.4.2 Preparation for electrical wiring Before wiring, the users need to open the front door of inverter, and the specific procedures are as... -
Page 31: Dc Side Wiring
Growatt New Energy CO. LTD www.ginverter.com Figure 4-4-2-2 Open Machine's Front Door Procedure 3: Raise the detents, and then close the doors. The schema is shown in Figure 4-4-2-3. Figure 4-4-2-2 Raise the detents 4.4.3 DC side wiring Caution, risk of danger CAUTION! The positive and negative of the PV array shall not be connected in reverse. - Page 32 Growatt New Energy CO. LTD www.ginverter.com Step 2：Measuring the open-circuit voltage of the PV array with a multimeter to ensure within the allowable range. Step 3：With a multimeter to confirm the positive and negative. Step 4：Stripped end of the cable insulation Step 5：Crimp the copper nose...
-
Page 33: Ac Side Wiring
Growatt New Energy CO. LTD www.ginverter.com Figure 4-4-3 DC input wiring 4.4.4 AC side wiring Caution, risk of danger CAUTION! When connecting the AC grid, cut off the circuit breaker at the AC side to ensure that the AC wire connecting to terminals has no electricity. - Page 34 Growatt New Energy CO. LTD www.ginverter.com 1. Select cable size is more in line with the heat shrink tubing, choose the length of about 2. Heat shrinkable sleeve over in the Wiring copper nose, to completely cover the wiring copper nose pressure line hole fit 3.
-
Page 35: Earthing
Growatt New Energy CO. LTD www.ginverter.com Figure 4-4-4 AC output wiring 4.4.5 Earthing Inverter must be earthing well for safety; Please make sure of the connection between PE in power distribution cabinet and PE copper in the inverter good; and make sure the earthing cable more than 185mm and the earthing resistance must satisfy the demand of IEC standard. -
Page 36: Communication
4.5 Communication The inverter of Growatt CP series has various communication methods. When the user needs to monitor the operating status of PV power generation system, we provide single-machine and multi-machine control programs, and diversified communication interfaces for customer's selection. -
Page 37: Internet Communication
Growatt New Energy CO. LTD www.ginverter.com Figure 4-5-1 RS485 Multi-machine Communication 4.5.2 Internet communication There is an Ethernet port on the right side of LCD. Please connect the LCD and Router with Network cable; and then router can make data interaction with serve, and users can communicate with the inverter by internet. -
Page 38: Pilot Operation
Growatt New Energy CO. LTD www.ginverter.com Electrical Installation Inspection □ Complete and firm grounding of inverter. □ Grid voltage matching the rated input voltage of inverter. □ Correct phase sequence of grid connection, and tightening torque meeting requirements. □ Correct connection of DC input anode and cathode, and tightening torque meeting requirements. -
Page 39: Inspection
Growatt New Energy CO. LTD www.ginverter.com 5.2 Inspection 5.2.1 Inverter inspection Before power on the inverter, please carry out inspections as the following procedures: Procedure 1: Inspect inverter's installation and wiring conditions based on the Installation Inspection List in Table 4-6;... -
Page 40: Pilot Operation Completion
Growatt New Energy CO. LTD www.ginverter.com Procedure 3: It takes about 10 seconds to automatically initialize the power inverted circuit and equipment. Than the "POWER" LED lamp on control panel will be on. Procedure 4: If the DC voltage is lower than the starting voltage (equal to 450Vdc), the touch screen keeps shown "Waiting"... -
Page 41: Power Off Steps
Growatt New Energy CO. LTD www.ginverter.com By now, the pilot operation of inverter is fully completed, and we can enter the daily operational maintenance. 5.5 Power off steps CAUTION! After the inverter is completely powered off, the general PV switch at solar panel side and the Grid switch at grid side still maintain voltage. -
Page 42: Lcd Operation
Growatt New Energy CO. LTD www.ginverter.com Table 6-1 Growatt CP250 LCD Menu After powering on the LCD, it will initialize itself first, and then enter the boot which displays the progress bar of starting up. The main interface will display after finishing the startup (about 20S, if the progress bar has not been finished after 60S, there is communication problem between LCD and control board). -
Page 43: Home Page
Growatt New Energy CO. LTD www.ginverter.com proceeded. Note: The default language is Chinese. 6.2.2 Home page Clicking “Home” button in any interface will enter into the Home page. The operating status of the inverter output power, safety standard, model, input and output voltage, current information can be viewed in the page. -
Page 44: On/Off Interface
Growatt New Energy CO. LTD www.ginverter.com 6.2.3 ON/OFF interface Clicking “ON/OFF” button in any interface will enter into this interface. There are “ON” and“OFF” button which is used to turn on and turn off the inverter. After selecting, a sub-window will pop up for confirmation: Yes/No. -
Page 45: System Setting
Growatt New Energy CO. LTD www.ginverter.com 6.2.4 System setting Clicking “System setting” button in any interface will enter into this interface. Submenu: language settings, time settings, inverter information, maintenance. Pressing the left button can enter into the corresponding submenu interface. The default one is language setting interface. - Page 46 Growatt New Energy CO. LTD www.ginverter.com Time settings: system time setting (if the date and time displayed on LCD is not inconsistent with the actual date and time, they can be modified here) Device Information: This page shows the manufacturer, inverter serial number, hardware and...
-
Page 47: Historical Information
Growatt New Energy CO. LTD www.ginverter.com Maintenance: the interface requires a password to login. It is for electrician and maintenance personnel who are fully familiar with the structure and working principle of the PV grid system only, in order to avoid damage to personal safety and the inverter. - Page 48 Growatt New Energy CO. LTD www.ginverter.com History of failure: all the common history of failure details can be found by flipping the page up and down. The common fault information, see table 6.3.1. History of serious failure: a total of 20 items of historical serious failure information can be found in details.
-
Page 49: Operation Data
Growatt New Energy CO. LTD www.ginverter.com 6.2.6 Operation data Clicking the “Operation data” in any interface will enter into the submenu of “operation data”. The sub-menu includes: real-time data, the power curve, and energy yield figure. Pressing the left button can enter into the corresponding sub menu interface. The default interface is the real-time data interface. - Page 50 Growatt New Energy CO. LTD www.ginverter.com Power curve: daily yield displayed in bar chart (updated every 12 minutes). Energy yield: Clicking this button can enter into submenu. Monthly yield: daily yield displayed in bar chart (updated every 12 minutes).
- Page 51 Growatt New Energy CO. LTD www.ginverter.com Yearly yield: monthly yield displayed in bar chart (updated every 12 minutes). 20 years yield: yearly yield displayed in bar chart.
-
Page 52: Lcd Display Information Schedule
Growatt New Energy CO. LTD www.ginverter.com Pressing "Back" can return to “real time data”. 6.3 LCD display information schedule 6.3.1 General history failure table information DC_Inverse_Failure IGBT_Failure EEPROM_Write_Failure EEPROM_Read_Failure AC_MainContactor_Failure AC_SlaveContactor_Failure GFDI_Failure GFCI_Failure DC1_VoltHigh_Fault DC2_VoltHigh_Fault DC1_CurrHigh_Fault... - Page 53 Growatt New Energy CO. LTD www.ginverter.com DC2_CurrHigh_Fault DC1_Insulation_Fault DC2_Insulation_Fault DC1_OCP_Fault DC2_OCP_Fault INT_DC1_OverVolt_Fault INT_DC2_OverVolt_Fault INT_DC1_OverCurr_Fault INT_DC2_OverCurr_Fault IGBT_Module1_Fault IGBT_Module2_Fault L1_OCP_Fault L2_OCP_Fault INT_L1_OverCurr_Fault INT_L2_OverCurr_Fault AC_NoUtility_Fault AC_GridPhaseSeque_Fault AC_PLL_Fault AC_Volt_Unbalance_Fault AC_Curr_Unbalance_Fault AC_WU_OverVolt_Fault AC_WU_UnderVolt_Fault AC_VW_OverVolt_Fault AC_VW_UnderVolt_Fault AC_UV_OverVolt_Fault AC_UV_UnderVolt_Fault AC_OverFreq_Fault AC_UnderFreq_Fault AC_GridCurr_DcHigh_Fault...
- Page 54 Growatt New Energy CO. LTD www.ginverter.com AC_L1Curr_DcHigh_Fault AC_L2Curr_DcHigh_Fault AC_GridCurr_High_Fault AC_L1Curr_High_Fault AC_L2Curr_High_Fault AC_Overload_Fault AC_Lightload_Fault AC_BackFeed_Fault LVRT_Fault Module1_OverTemp_Fault Module2_OverTemp_Fault Inductor1_OverTemp_Fault Inductor2_OverTemp_Fault Transformer_OverTemp_Fault LowTemp_Fault EPO_Stop KeyEmergencyStop LcdEmergencyStop Door_Open_Fault AC_MainContactor1_Fault AC_MainContactor2_Fault AC_MainContactor3_Fault AC_SlaveContactor_Fault GFDI_Ground_Fault GFDI_HallSense_Fault GFDI_AirSwitch_Fault GFDI1_Fault GFDI2_Fault RISO1_Fault...
-
Page 55: Serious Fault History
Growatt New Energy CO. LTD www.ginverter.com RISO2_Fault GFCI1_Fault GFCI2_Fault AC_Fuse1_Fault AC_Fuse2_Fault Fault_Feedback_Warning Fan_1_Fault_Warning Fan_2_Fault_Warning Fan_3_Fault_Warning Table 6.3.1 General history failure table 6.3.2 Serious fault history information Grid voltage too high Grid voltage too low Grid frequency too high Grid frequency too low... -
Page 56: Inverter Status
Growatt New Energy CO. LTD www.ginverter.com inverter temperature too high lightning protection devices failure Overheating protection Anti-discharge protection Reverse polarity Normal shutdown Malfunction shutdown Alarm Figure 6.3.2 Serious historical fault table 6.3.3 Inverter status description waiting checking grid connected fault... -
Page 57: Regular Maintenance
Growatt New Energy CO. LTD www.ginverter.com when it is dirty. Procedure of the dust screen replacement: 1) The front and back cover can be seen after opening the front and back cover of the inverter. 2) Open front and back dust cover from the bottom of the dust cover. -
Page 58: Waste Disposal
Growatt New Energy CO. LTD www.ginverter.com Check the dust, moisture or condensation inside the cabinet every month Check the cable connections, and fix the screw if necessary. every month Check the warning label, add or replace some if necessary. every month... -
Page 59: Appendix
Growatt New Energy CO. LTD www.ginverter.com 8 Appendix 8.1 Specification Rating Units Value PV input quantities: (absolute maximum) d.c. V 1000 MAX PV PV input operating voltage range d.c. V 450-1000 Maximum operating PV input current d.c. A (absolute maximum) d.c. -
Page 60: Growatt Factory Warranty
The warranty shall also cease to apply if the product cannot be correctly identified as the product of Growatt. Warranty claims will not be honored if the type of serial number on the inverters have been altered, removed or rendered illegible. -
Page 61: Contact
Liability The liability of Growatt in respect of any defects in its PV inverters shall be limited to compliance with the obligations as stated in these terms and conditions of warranty. Maximum liability shall be limited to the sale price of the product. Growatt shall accept no liability for loss of profit, resultant of indirect damage, any loss of electrical power and / or compensation of energy suppliers within the express meaning of that term.
Need help?
Do you have a question about the CP250 and is the answer not in the manual?
Questions and answers