Growatt 7000MTL-S Installation & Operation Manual Download | Manualshive

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6.4 Connecting the PV Array (DC input)

6.4.1 Conditions for DC Connection

WARNING

The solar modules connected to the inverter must conform to the Class

A requirements of the IEC 61730 standard.

Please use the same brand male and female PV connectors.

The Growatt MTL-S single-phase inverter has 2 independent input : input A &

input B

Suggestions for the PV modules of the connected strings:



Same type



Same quantity of PV modules connected in series

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Summary of Contents for 7000MTL-S

Page 1: ...1 Growatt 7000MTL S Growatt 8000MTL S Installation Operation Manual ...

Page 2: ...ct incidental or consequential damages under any circumstances The exclusion of implied warranties may not apply in all cases under some statutes and thus the above exclusion may not apply Specifications are subject to change without notice Every attempt has been made to make this document complete accurate and up to date Readers are cautioned however that Growatt reserves the right to make change...

Page 3: ...e unit 15 4 Unpacking and inspection 15 5 Installation 17 5 1 Safety instructions 17 5 2 Selecting the installation location 18 5 3 Mounting the Inverter 21 5 3 1 Mounting the Inverter with bracket 21 5 3 2 Fixed the inverter on the wall 22 6 Electrical connection 23 6 1 Safety 24 6 2 Wiring AC Output 24 6 3 connecting the second protective conductor 28 6 4 Connecting the PV Array DC input 29 6 4 ...

Page 4: ...tandard 40 7 3 2 WIFI Optional 40 8 Start Up and shut down the inverter 41 8 1 Start Up the inverter 41 8 2 Turn off the Inverter 41 9 Maintenance and Cleaning 41 9 1 Checking Heat Dissipation 41 9 2 Cleaning the Inverter 41 9 3 Checking the DC Disconnect 42 10 Trouble shooting 42 10 1 Warnings W 42 10 2 Errors E 43 11 Manufacturer Warranty 44 12 Decommissioning 44 12 1 Dismantling the Inverter 44...

Page 5: ...ngers and hazards involved in installing electric devices 1 3 Additional information Find further information on special topics in the download area at www ginverter com The manual and other documents must be stored in a convenient place and be available at all times We assume no liability for any damage caused by failure to observe these instructions For possible changes in this manual GROWATT NE...

Page 6: ...rious injury CAUTION CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE NOTICE is used to address practices not related to personal injury Information Information that you must read and know to ensure optimal operation of the system 1 4 2 Markings on this product Symbol Explanation Electrical voltage Risk of fire or explosion Risk of burns ...

Page 7: ...ours or MWh megawatt hours The energy is the power calculated over time If for example your inverter operates at a constant power of 4600 W for half an hour and then at a constant power of 2300 W for another half an hour it has fed 3450Wh of energy into the power distribution grid within that hour Power Power is measured in W watts kW kilowatts or MW megawatts Power is an instantaneous value It di...

Page 8: ...ess communication technology is a radio technology that allows the inverter and other communication products to communicate with each other The external wireless communication does not require line of sight between the devices and it is selective purchasing 2 Safety 2 1 Intended Use The unit converts the DC current generated by the photovoltaic PV modules to grid compliant alternating current and ...

Page 9: ...roof and on the weather rain snow This normal leakage current may not exceed 50mA due to the fact that the inverter would otherwise automatically disconnect from the electricity grid as a protective measure 2 2 Qualification of skilled person This grid tied inverter system operates only when properly connected to the AC distribution network Before connecting the Growatt MTL S to the power distribu...

Page 10: ... mounting frame of the PV modules If you connect grounded PV modules to the Growatt MTL S the error message PV ISO Low Comply with the local requirements for grounding the PV modules and the PV generator GROWATT recommends connecting the generator frame and other electrically conductive surfaces in a manner which ensures continuous conduction with ground in order to have optimal protection of the ...

Page 11: ...nerator into AC current The inverter is suitable for mounting indoors and outdoors You can use the AC current gernerated as follows House grid Energy flows into the house grid The consumers connected for example household devices or lighting consume the energy The energy left over is fed into the public grid When the Growatt is not gernerating any energy e g at night the consumers which are connec...

Page 12: ...tart up including maintenance must be operated by qualified trained personnel and in compliance with all prevailing codes and regulations Anytime the inverter has been disconnected from the power network use extreme caution as some components can retain charge sufficient to create a shock hazard to minimize occurrence of such conditions comply with all corresponding safety symbols and markings pre...

Page 13: ...f the inverter The type of product Position Description A LCD B LED C PV Input D DC Switch E RS485 terminal F RJ45 connector only for Australia G AC Output Symbol Description Explanation Tap symbol Setting the display operation by tapping the LCD see Section 7 NORMALL FAULT Inverter status symbol Indicates inverter operation status ...

Page 14: ...e Growatt 7000MTL S Growatt 8000MTL S Max input DC voltage 550V Max input DC current 25A 12 5A PV voltage range 80V 550V AC nominal voltage 230V AC grid frequency 50Hz Max apparent power 7000VA 8200VA AC normal output current 30 4A 35 7A Power factor 0 8leading 0 8lagging Environmental Protection Rating IP65 Operation Ambient temperature 25 60 13 140 F with derating above 45 C 113 F ...

Page 15: ...d the storage relative humidity can achieve to 100 If there are a batch of inverters need to be stored the maximum layers for original carton is four After long term storage local installer or service department of GROWATT should perform a comprehensive test before installation 3 5 The advantage of the unit Maximum efficiency of 98 4 Wide input voltage range from 80 550Vdc Reactive power regulate ...

Page 16: ... the original or equivalent packaging should be used and the maximum layers for original carton is four as this ensures safe transport After opening the package please check the contents of the box It should contain the following Please check all of the accessories carefully in the carton If anything missing contact your dealer at once Item Description Quantity A Inverter 1 B Mounting frame 1 C Qu...

Page 17: ...y be operated with PV generator Do not connect any other source of energy to it Both AC and DC voltage sources are terminated inside the PV Inverter Please disconnect these circuits before servicing This unit is designed to feed power to the public power grid utility only Do not connect this unit to an AC source or generator Connecting Inverter to external devices could result in serious damage to...

Page 18: ...ling fan of the inverter The Ingress Protection rate is IP65 which means the inverter can be installed outdoors and indoors The humidity of the installation location should be 0 100 without condensation The installation location must be freely and safely to get at all times Vertically installation and make sure the connection of inverter must be downwards Never install horizontal and avoids forwar...

Page 19: ...nverter to direct sunlight as this can cause excessive heating and thus power reduction Observe the Min clearances to walls other inverters or objects as shown in the diagram Direction Min clearance cm above 30 below 50 sides 30 front 30 Ambient dimensions of one inverter ...

Page 20: ...ir of the adjacent inverter is not taken in If necessary increase the clearance spaces and make sure there is enough fresh air supply to ensure sufficient cooling of the inverters The inverter can t install to solarization drench firn location We suggest that the inverters should be installed at the location with some cover or protection ...

Page 21: ...lose to trunk 5 3 Mounting the Inverter 5 3 1 Mounting the Bracket DANGER In order to avoid electrical shock or other injury inspect existing electronic or plumbing installations before drilling holes To mount the inverter on the wall we should mount the bracket to the wall firmly first of all ...

Page 22: ... the bracket against the wall with screw sleeves Fix the mounting frame on the wall as the figures shown below 5 3 2 Fixed the inverter on the wall WARNING Falling equipment can cause serious or even fatal injury never mount the inverter on the bracket unless you are sure that the mounting frame is really firmly mounted on the wall after carefully checking ...

Page 23: ...inverter on the bracket through the match hooks on bracket After confirming the inverter is fixed reliably fasten M6 safety lock sockets head cap screws on the left and right side firmly to prevent the inverter from being lifted off the bracket 6 Electrical connection Decisive Voltage Class DVC indicated for ports Port Name Class AC C DC C DRM A RS485 RS232 A ...

Page 24: ...ecting residual current you must choose a AC breaker with the rating residual current more than 300mA NOTICE When using inverter with VDE AR N 4105 because the inverter s displacement factor adjust function had to accorded to VDE AR N 4105 the PV inverter system total capacity cannot be over 13 8KVA When using inverter with CEI 0 21 if the inverter system total capacity more than3KW and up to 6KW ...

Page 25: ...es C circuit breaker D Growatt Inverter E Energy meter F Utility grid The AC wiring step 1 The grid connection is made using 3 conductors L N and PE The AC wiring step 2 Uninstall the parts of the AC connection plug from the accessory bag ...

Page 26: ...aded sleeve in sequence insert cables into connection terminal according to polarities indicates on it and tighten the screws firmly Please try to pull out the wire to make sure the it s well connected 4 Push the threaded sleeve into the socket Tighten up the cap on the terminal ...

Page 27: ...ded sleeve to connection terminal until both are locked tightly on the inverter 5 To remove the AC output terminal press the bayonet out of the slot with a small screwdriver and pull it out or unscrew the threaded sleeve then pull it out ...

Page 28: ...7000MTL S Growatt 8000MTL S 10AWG 46m 40m 8AWG 70m 60m 6 3 Connecting the second protective conductor If the installation requires the ground terminal can be used to connect a second protective conductor or as a equipotential bonding The second protective point is shown below ...

Page 29: ...erter must conform to the Class A requirements of the IEC 61730 standard Please use the same brand male and female PV connectors The Growatt MTL S single phase inverter has 2 independent input input A input B Suggestions for the PV modules of the connected strings Same type Same quantity of PV modules connected in series ...

Page 30: ...n circuit voltage Voc of each PV string is less than the maximum input voltage of the inverter Check the design of the PV plant The Max open circuit voltage which can occur at solar panels temperature of 10 must not exceed the Max input voltage of the inverter WARNING Improper operation during the wiring process can cause fatal injury to operator or unrecoverable damage to the inverter Only qualif...

Page 31: ... follows Pin1 T R B Pin2 Shielding layer or no connection Pin3 T R A 1 Please loosen four screws take down the RS485 waterproof cover from inverter If you don t choose RS485 as communication method keep it on the inverter 2 Slightly loosen the swivel nut remove the filler plug from the M16 cable gland ...

Page 32: ...er 1 to T R RS485B 3 to T R RS485A 2 to the shielding layer or no connection The type of cable is recommended as STP FTP ASTP 4 Plug in two terminals Cover the fix board 5 Tighten 4pcs screws and cable gland Pull cables outwards to confirm whether they are installed firmly Tighten 4 pcs screws first then tighten cable gland ...

Page 33: ...ocket Asserted by shorting pins Requirement DRM 0 5 6 Operate the disconnection device DRM 5 1 5 Do not generate power DRM 6 2 5 Do not generate at more than 50 of rated power DRM 7 3 5 Do not generate at more than 75 of rated power AND Sink reactive power if capabie DRM 8 4 5 Increase power generation subject to constraints from other active DRMs 7 Commissioning DANGER Do not disconnect the DC co...

Page 34: ...X3 4 2 3 1 ON 5 AS4777 New Zealand GT1XXXXXX8 Step2 Turn on the AC switch between the MTL S inverter and the power grid Step3 Turn on the DC switch at the bottom of the MTL S inverter the inverter will start automatically 7 1 General LCD display 7 1 1 Power on display When inverter powered on LCD background will light automatically Starting up display sequence once the PV power is sufficient inver...

Page 35: ...ct in xxS System checking Reconnect in xxS System checking Inverter State Connect OK Connect to Grid xxxx xVA xxxx x W Inverter watt at working Fault State Error xxx System Fault Auto Test State Auto Testing Protection auto test Program State Programming Update Software 7 1 3 The Second line can change by knock on The Second Line Of LCD CYCLE DISPLAY DISPLAY TIME S REMARK 2 Model number of the inv...

Page 36: ...tion 4 Communication Address of the inverter 4 Set Zigbee channal 4 The last 5dated failure reports 4 Set year month day time 4 Parameters setting 7 1 4 Connecting messages When inverter started to connect to grid the following message will appear on LCD screen Connect to gird interface ...

Page 37: ...s no knock detected in 180 seconds 7 2 3 Set inverter COM address When communicating with monitoring software or device the software or device may regard inverter s COM address as communication address Also may use inverter s serial number as communication address Before entering the COM Address xxx setting interface you need to enter a password as below According to the LCD display you need to in...

Page 38: ... 2 When LCD displays INPUT 123 123 triple knock to enter the setting interface 3 Single knock to select the language you want when setting finishes wait for 30s or triple knock to save your setting The inverter provides seven languages English German Spanish Italian French Hungarian and Turkish The number on Set language interface is sequence number of these seven languages the sequence number and...

Page 39: ... each error item triple knock can exit 1 If the inverter connects with PV panel arrays and the input voltage is higher than 100Vdc while the AC grid is not connected yet LCD will display messages in order as below Growatt Inverter NO AC CONNECTION The display repeats NO AC CONNECTION and the LED will be red 2 Turn on the AC breaker or close the fuse between inverter and grid the system will operat...

Page 40: ... downward to OFF 2 When Exter wireless is selected you have to set PIN1 of the switch upward to ON 7 3 Communications 7 3 1 RS232 standard RS232 could be chosen for GPRS WiFi Module 7 3 2 WIFI Optional WIFI GPRS module can be used as an optional monitoring scheme ...

Page 41: ... reactivated 2 Turn off the dc switch 3 Check the inverter operating status 4 Waiting until LED display have go out the inverter is shut down 9 Maintenance and Cleaning 9 1 Checking Heat Dissipation If the inverter regularly reduces its output power due to high temperature please improve the heat dissipation condition Maybe you need to clean the heat sink 9 2 Cleaning the Inverter If the inverter ...

Page 42: ...elate to a fault When a W with a number after it appears in the display it indicates a Warning Code and is usually cleared through an orderly shutdown re set or a self corrective action performed by the inverter See the W codes in the following table Error message Description Suggestion No AC Connection No utility grid connected or utility grid power failure 1 Check AC wiring 2 Contact Growatt AC ...

Page 43: ...o not work please connect to the Growatt 10 2 Errors E Errors E codes identify a possible equipment failure fault or incorrect inverter setting or configuration Any and all attempts to correct or clear a fault must be performed by qualified personnel Typically the E code can be cleared once the cause or fault is removed Some of the E codes Error as indicated in the table below may indicate a fatal...

Page 44: ...rocessor can t receive data from Slave processor 1 Restart the inverter 2 If error message still exists contact Growatt Error 122 Bus voltage fault Contact Growatt Note The latest 5 NS Network and System protection records can be read by LCD or communication software An interruption of 3 Sec to the power supply does not lead to any loss of fault records according to VDE AR N 4105 cl 6 5 1 11 Manuf...

Page 45: ...ere ambient temperatures are always between 25 C and 60 C 12 4 Disposing of the Inverter Do not dispose of faulty inverters or accessories together with household waste Please accordance with the disposal regulations for electronic waste which apply at the installation site at that time Ensure that the old unit and where applicable any accessories are disposed of in a proper manner 13 Technical Da...

Page 46: ...8lagging THDi 3 AC grid connection type Single phase AC overvoltage category Category III Efficiency Max efficiency 98 4 98 4 Euro eta 97 2 97 2 Protection devices DC reverse polarity protection Integrated DC switch Integrated DC Surge protection Type III Insulation resistance monitoring Integrated AC surge protection Type III AC short circuit protection Integrated Ground fault monitoring Integrat...

Page 47: ...N61000 3 12 Safety IEC EN62109 1 IEC EN62109 2 The AC Voltage Range may vary depending on specific country grid standard All specifications are subject to change without notice 13 2 DC connector info DC connector VP D4 MC4 opt 13 3 Torque Enclosure lid screws 7kg cm Shell and RS232 screws 7kg cm AC terminal 6kg cm M6 soket head cap screws for securing the enclosure at the bracket 20kg cm Additiona...

Page 48: ...o model and age The warranty shall not cover transportation costs in connection with the return of defective modules The cost of the installation or reinstallation of the modules shall also be expressly exclude as are all other related logistical and process costs incurred by all parties in relation to this warranty claim 14 PV system installation Installation with multiple inverters on a single p...

Page 49: ...0 8000MTL S CE AS4777 G99 GROWATT can preset special grid parameters for other countries installation locations according to customer requests after evaluation by GROWATT You can make later modifications yourself by changing software parameters with respective communication products e g shinebus or shineNet ect To change the grid relevant parameters you need a personal access code if you need it p...

Page 50: ...sistance Inverter type Serial number of the inverter Event number or display message of the inverter Type and number of PV modules connected Optional equipment GROWATT NEW ENERGY TECHNOLOGY Co LTD 1st East 3rd Floor Building 5 Jiayu Industrial Zone Xibianling Shangwu Village Shiyan Baoan District Shenzhen P R China www ginverter com Serviceline Tel 86 755 2747 1942 Fax 86 755 2747 2131 Email servi...

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