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5 Electrical Connection

User Manual

Step 5

Seal the unused PV terminals with MC4 terminal caps.

5.7 Communication Junction Box

5.7.1 Remove the Junction Box

Step 1

Pull out the pin and keep it properly, remove the junction box.

The pin removed is a required accessory for fixing the junction box.
Store it properly and protect it against missing or deformation.

5.7.2 Install the Junction Box

Step 1

Remount the wiring box and press it tightly, insert the pin, and secure the
wiring box with the supplied M4×25 screw.

Содержание SG33CX

Страница 1: ...SG33_40_50CX UEN Ver11 201907 Version 1 1 User Manual SG33CX SG40CX SG50CX PV Grid Connected Inverter...

Страница 2: ......

Страница 3: ...ocument are owned by their respective owners Software Licenses It is prohibited to use data contained in firmware or software developed by SUNGROW in part or in full for commercial purposes by any mea...

Страница 4: ...rget Group Plant owner Installation engineer Maintenance engineer How to Use This Manual Read the manual and other related documents before performing any work on the inverter is carried out Documents...

Страница 5: ...hat if not avoided could result in death or serious injury Indicates a hazard with a low level of risk that if not avoided could result in minor or moderate injury Indicates a situation that if not av...

Страница 6: ...LED Indicator Panel 7 2 2 5 DC Switch 8 2 3 Circuit Diagram 8 2 4 Function Description 9 3 Unpacking and Storage 11 3 1 Unpacking and Inspection 11 3 2 Identifying the Inverter 11 3 3 Scope of Deliver...

Страница 7: ...dditional Grounding Connection 31 5 4 1 Additional Grounding Requirements 31 5 4 2 Connection Procedure 31 5 5 AC Cable Connection 32 5 5 1 AC Side Requirements 32 5 5 2 Requirement for OT DT Terminal...

Страница 8: ...tall 55 7 3 Menu 56 7 4 Login 56 7 4 1 Requirements 56 7 4 2 Login Steps 57 7 5 Home page 58 7 6 Running Information 60 7 7 History Record 62 7 7 1 Fault Alarm Records 62 7 7 2 Power Yields Records 63...

Страница 9: ...VII 9 2 2 Maintenance Instruction 78 10 Appendix 81 10 1 Technical Data 81 10 2 Quality Assurance 83 10 3 Contact Information 84...

Страница 10: ......

Страница 11: ...ver all the precautions that should be followed Perform operations considering actual onsite conditions SUNGROW shall not be held liable for any damage caused by violation of the safety instructions i...

Страница 12: ...ims and in most cases terminate the operating license Risk of inverter damage or personal injury Do not pull out the PV connectors when the inverter is running Wait 5 minutes for the internal capacito...

Страница 13: ...life due to high voltages Only qualified personnel can open and service the inverter Disconnect the inverter from all the external power sources before service 5 min Do not touch live parts until 5mi...

Страница 14: ...2 1 A B C D E Fig 2 1 Inverter application in PV power system Inverter cannot connect the PV strings whose positive and negative terminals need to be grounded Do not connect any local load between the...

Страница 15: ...er L1 L2 L3 N PE 2 2 Product Introduction 2 2 1 Type Description The device type description is as follows Take SG33CX as an example SG 33 CX Code of Product Series Code Of power level Photovoltaic gr...

Страница 16: ...2 Mounting ears 4 used to hang the inverter onto the mounting bracket 3 Side handles 2 used to move the inverter 4 Labels Warning symbols nameplate and QR code 5 Additional grounding terminals 2 use...

Страница 17: ...or LED state Definition Steady Blue The device is connected to the grid and operating normally Periodical flashing blue Period 0 2s The Bluetooth communication is connected and there is data communica...

Страница 18: ...m The MPPT is utilized for DC input to ensure the maximum power from the PV array at different PV input conditions The inversion circuit converts the DC power into AC power and feeds the AC power into...

Страница 19: ...accessory port is used to connect communication module manufactured by SUNGROW such as Eye and WiFi and upload monitoring data to background by means of wireless communication such as Bluetooth WiFi...

Страница 20: ...e any questions contact the PV module manufacturer or read its corresponding user manual If the voltage scheme for the PID protection recovery function does not meet the requirement of corresponding P...

Страница 21: ...elivery scope for completeness according to the packing list Contact SUNGROW or the distributor in case there is any damage or incompleteness Do not dispose of the original packing case It is recommen...

Страница 22: ...28 Vac 50 60 Hz AC 55 2 A 33 kW 0 8 Leading 0 8 Lagging AC DC IP66 30 60 36 3 kVA GRID CONNECTED PV INVERTER Rated Output Voltage 3 N PE AC 400 230 V 1 2 4 3 Fig 3 1 Nameplate The image shown here is...

Страница 23: ...unting bracket components and 1 connecting bar b The SG33CX SG40CX and SG50CX are respectively provided with 6 8 and 10 pairs of DC connectors and cord end terminals c The screws include 1 M4 25 screw...

Страница 24: ...d be always between 0 and 95 non condensing In case of stacking storage the number of stacking layers should never exceed the limit marked on the outer side of the packing case 4 The packing case shou...

Страница 25: ...ruise Always follow the instructions when moving and positioning the inverter System performance loss due to poor ventilation Keep the heat sinks uncovered to ensure heat dissipation performance 4 2 L...

Страница 26: ...ter should be well ventilated Ensure air circulation Never install the inverter in living areas The inverter will generate noise during operation affecting daily life 4 2 2 Carrier Requirements The in...

Страница 27: ...least 300mm higher than the ground surface In case the inverter is applied in a floating power plant ensure that the waterproof connectors are at least 650mm higher than the floating body surface Bind...

Страница 28: ...nce between the inverters 600mm 600mm 600mm 200mm In case of back to back installation reserve specific clearance between the two inverters 500mm Install the inverter at an appropriate height for ease...

Страница 29: ...Measurement range 1100Vdc 880 0 Protective clothing Wrist strap Protective gloves Dust mask Earplugs Goggles Insulated shoes Vacuum cleaner Installati on tool Hammer drill Drill bit 12 14 Rubber malle...

Страница 30: ...nd move the inverter to the destination by using the side handles and bottom handles Inappropriate moving operation may cause personal injury It is recommended that at least two installers carry the i...

Страница 31: ...n the tie down strap Step 4Hoist the inverter and stop to check for safety when the inverter is 100mm above the ground Continue hoisting the device to the destination after ensuring the safety Step 5R...

Страница 32: ...Hammer drill Drill bit 12 Socket wrench Including 16mm socket Spare parts Item Quantity Specification Source Grub screw 2 M4 10 Delivery scope 2 M6 65 Delivery scope Bolt assembly 4 M10 Delivery scop...

Страница 33: ...tal bracket D Flat washer E Spring washer F Hex nuts M10 Step 4Take out the inverter from the packing case Step 5Hoist the inverter to the installation position when necessary refer to 4 4 2 Hoisting...

Страница 34: ...5N m 4 6 Wall Mounted Installation 4 6 1 Preparation before Mounting Tools Item Specification Phillips screwdriver electric screw driver M4 M6 Marker Level Hammer drill Drill bit Select according to...

Страница 35: ...ing bracket by using the connecting bar M4 1 5N m Step 2Level the assembled mounting bracket by using the level and mark the positions for drilling holes on the installation site Step 3Insert the expa...

Страница 36: ...Mounting bracket Step 5Take out the inverter from the packing case Step 6Hoist the inverter to the installation position when necessary refer to 4 4 2 Hoisting Transport If the installation position i...

Страница 37: ...User Manual 4 Mechanical Mounting 27 M6 4 5N m...

Страница 38: ...use device damage or personal injury Only qualified personnel can perform cable connection All cables must be undamaged firmly attached properly insulated and adequately dimensioned Comply with the sa...

Страница 39: ...erminals B Communication terminal COM1 3 4 For RS485 communication digital input and output DI DO and DRM communication wiring COM2 Communication module connection such as GPRS WiFi and E Net C AC jun...

Страница 40: ...ard 6 9 4 6 2 Additional Grounding cable Outdoor single core copper wire cable The same as that of the PE wire in the AC cable 3 AC cable Outdoor multi core copper or aluminium cable Copper and alumin...

Страница 41: ...ect the additional grounding terminal to the protective grounding point before AC cable connection PV cable connection and communication cable connection 5 4 1 Additional Grounding Requirements All no...

Страница 42: ...2 4 5N m There are two grounding terminals Use at least one of them to ground the inverter 5 5 AC Cable Connection 5 5 1 AC Side Requirements Before connecting the inverter to the grid ensure the grid...

Страница 43: ...ensure that the total number of parallel inverters does not exceed 30 Otherwise please contact SUNGROW for technical scheme MV transformer The MV transformer used together with the inverter should me...

Страница 44: ...exceed the power of the transformer The maximum AC current of all inverters connected in parallel must be taken into account If more than 30 inverters are connected to the grid contact SUNGROW The tr...

Страница 45: ...minium cable terminal connection sequence Direct contact between the copper bar and the aluminium cable will cause electrochemical corrosion and impair the reliability of electrical connection 5 5 4 C...

Страница 46: ...mm Seals 20 25 a b c d 25 30 a b c 30 40 a b 40 50 a Step 3Strip the protection layer and insulation layer by specific length as described in the figure below L E 2 3 mm E 135mm Step 4Make the cable...

Страница 47: ...wire If a phase wire is connected to the PE terminal or N terminal unrecoverable damage may be caused to the inverter M8 10 12 N m L1 L2 L3 N PE Step 7Secure the junction box fasten the buckle and se...

Страница 48: ...each string does not exceed 1 100V at all times The inverter enters the standby state when the input voltage ranges between 1 000V and 1 100V The inverter returns to the running state once the voltage...

Страница 49: ...s DC1 and DC2 To make the best use of PV module input power string structures of DC1 and DC2 should be the same including PV module type number of PV modules angle of tilt and installation orientation...

Страница 50: ...erminal within the scope of delivery Damage to the device due to the use of incompatible terminal shall not be covered by the warranty Step 1Strip insulation layers of all DC cables by about 7mm 7mm S...

Страница 51: ...nverter input limit of 1 100V 880 0 Step 3Insert the PV connectors to the corresponding terminals until there is an audible click Check the positive and negative polarity of the PV strings and insert...

Страница 52: ...ox Step 1Pull out the pin and keep it properly remove the junction box The pin removed is a required accessory for fixing the junction box Store it properly and protect it against missing or deformati...

Страница 53: ...mainly includes RS485 communication interfaces while the lower layer communication board mainly includes DI DO interface and DRM interface DI DI PGND PGND NC COM NO DO CON1 ON OFF 120ohm SW1 A1 A1 B1...

Страница 54: ...he application scenario of single inverter communication The RS485 1 terminal block and the RJ45 interface can be applied to applications where multiple inverters communicate in a daisy chain form A 1...

Страница 55: ...r Inverter 1 Inverter 2 N 1 Inverter N Monitoring station Logger Terminal Block RJ45 RJ45 RJ45 OUT IN OUT IN OUT A1 A1 B1 B1 OUT IN A1 A1 B1 B1 OUT IN A1 A1 B1 B1 OUT OUT IN OUT IN OUT Terminal Block...

Страница 56: ...he number of devices allowed to be connected should meet the requirements refer to the user manual for the Logger3000 5 9 3 Connection Procedure RS485 communication cables should be shielded twisted p...

Страница 57: ...responding terminal Tab 5 3 Terminal definition No Definition 1 RS485 A IN RS485A differential signal 2 RS485 A OUT RS485A communication signal 3 RS485 B IN RS485B differential signal 4 RS485 B OUT RS...

Страница 58: ...d insert the signal wires to the RJ45 connector Crimp the RJ45 connector with a crimping tool Wire sequence Pin 1 White and orange Pin 2 Orange Pin 3 White and green Pin 4 Blue Pin 5 White and blue Pi...

Страница 59: ...p 5If other wiring operations need to be performed on the communication board finish the wiring operations before performing the following steps If otherwise continue to perform the following steps St...

Страница 60: ...t DO terminal fault output dry contact the relay can be set to fault alarm output and user can configure it to be a normal open contact COM NO or a normal close contact COM NC The relay is initially a...

Страница 61: ...LED indicator gets off COM NO NC Inverter interior Inverter interior Fig 5 6 Normal close contact Devices connected to the relay should comply with related requirements AC Side Requirements DC Side Re...

Страница 62: ...gy RS485 daisy chain in the master slave mode Inverter N DI DI PGND PGND DI DI PGND PGND DI DI PGND PGND Inverter 1 Inverter 2 Controlled switch A1 A1 B1 B1 OUT IN PC Logger Ethernet port RS485 termin...

Страница 63: ...r E Net to the communication accessory port After successful connection information such as power generation and running state of the inverter can be viewed via the APP on the phone The image shown he...

Страница 64: ...bottom of the inverter are properly sealed Warning signs labels are suitably affixed and durable 6 2 Commissioning Procedure If all of the items mentioned above meet the requirements proceed as follo...

Страница 65: ...thereby achieving remote maintenance on the inverter This manual describes only how to achieve near end maintenance via the Bluetooth connection For remote maintenance through the Eye or WiFi refer to...

Страница 66: ...nu iSolarCloud Running information More Home History record Events Power generation Faults and alarms Parameter setting System parameter Password change Fig 7 1 Menu tree 7 4 Login 7 4 1 Requirements...

Страница 67: ...ext screen Step 2Open the APP after which the Bluetooth search screen pops up automatically and select the to be connected inverter according the SN on the nameplate of the inverter The Bluetooth indi...

Страница 68: ...ll enter the quick setting screen of initialize protection parameter After finishing setting on the quick setting screen click and the device will be initialized The APP will send start instructions a...

Страница 69: ...Tab 7 3Description of PID function state 4 Power flow chart Display the PV power generation power feed in power etc The line with an arrow indicates energy flow between connected devices and the arrow...

Страница 70: ...unning The inverter runs according to the scheduling instructions received from the monitoring background Fault If a fault occurs inverter will automatically stop operation and disconnect the AC relay...

Страница 71: ...t PV x voltage V The input voltage of the xth string PV x current A The input current of the xth string Output AC frequency Hz Output Total active power kW Apparent power kVA Monthly generating capaci...

Страница 72: ...d screen as shown in the following figure Fig 7 7 History record On history record screen users can check the alarm records power yield records and event records 7 7 1 Fault Alarm Records Tap to view...

Страница 73: ...ab 7 5 Explanation of power yields records Parameter Description Power curve Show the power output from 5 am to 11 pm in a single day Each point in the curve is the percentage of present power and nom...

Страница 74: ...ponding power curve Step 2Swipe left to check the power yields histogram 7 7 3 Event Records Click to view event record list Click to select a time segment and view corresponding event records The inv...

Страница 75: ...Tap to enter the system parameter screen on which start stop instruction can be sent to the inverter and information such as ARM version and MDSP version can be viewed 7 8 2 Password Changing Tap to e...

Страница 76: ...puts Step 3Wait about 5 minutes until the capacitors inside the inverter have been discharged Step 4Ensure that the DC cable is current free via a current clamp Step 5Insert a MC4 wrench into the notc...

Страница 77: ...reinstalled in the future please refer to 3 4 Inverter Storage for a proper storage 8 3 Disposal of the Inverter Users take the responsibility for the disposal of the inverter Some parts and devices o...

Страница 78: ...easure the actual grid voltage and contact the local electric power company for solutions if the grid voltage is higher than the set value 2 Check whether the protection parameters are appropriately s...

Страница 79: ...or solutions if the grid voltage is lower than the set value 2 Check whether the protection parameters are appropriately set via the APP or the LCD 3 Check whether the AC cable is firmly in place 4 If...

Страница 80: ...d DC switches 15 minutes later to restart the inverter If the fault still exists contact Sungrow Service 012 Excessive leakage current 1 The fault can be caused by poor sunlight or damp environment an...

Страница 81: ...al area of the AC cable meets the requirement 4 If the fault is not caused by the foregoing reasons and still exists contact Sungrow Service 016 Output overload The configured module power is excessiv...

Страница 82: ...ct Sungrow Service 036 Temperature anomaly The temperature of the power module or the interior of the inverter is excessively high and out of the safe range 1 Check whether the inverter is directly ex...

Страница 83: ...r to return to normal Disconnect the AC and DC switches and reconnect the AC and DC switches 15 minutes later to restart the inverter If the fault still exists contact Sungrow Service 043 Low ambient...

Страница 84: ...l exists contact Sungrow Service 078 081 PVx abnormal 1 Check if the xth PV string needs to be connected If not ignore the alarm and If so check the connection status and make sure it is connected rel...

Страница 85: ...le the AFD function through the APP or the LCD screen so that the inverter will recover to be normal 2 If the fault is not caused by the foregoing reasons and still exists contact Sungrow Service 105...

Страница 86: ...t is not caused by the foregoing reasons and still exists contact Sungrow Service The code 448 to code 471 are corresponding to string 1 to string 24 respectively 532 547 String x reverse connection a...

Страница 87: ...ck the module for abnormal aging 3 If the fault is not caused by the foregoing reasons and still exists contact Sungrow Service The code 580 and 587 are corresponding to string 17 and string 24 respec...

Страница 88: ...the temperature and dust of the inverter Clean the inverter enclosure if necessary Check if the air inlet and outlet are normal Clean the air inlet and outlet if necessary Six months to a year depend...

Страница 89: ...least 5 minutes and then perform maintenance work Only qualified electricians can maintain the fans The operation procedure is as follows Step 1Stop the inverter see 8 1 Disconnecting the Inverter St...

Страница 90: ...ing Air Inlet and Outlet A huge amount of heat is generated in the process of running the inverter The inverter adopts a controlled forced air cooling method In order to maintain good ventilation plea...

Страница 91: ...rrent for input connector 30A Max DC Short circuit current 120A 160A 200A Max inverter backfeed current to the array 0A Output AC AC output power 45 400Vac 33 kVA 40 kVA 50 kVA AC output power 40 400V...

Страница 92: ...AC short circuit protection Yes Leakage current protection Yes Grid monitoring Yes DC switch AC switch Yes No PV string current monitoring Yes Q at night Yes PID recovery function Optional Overvoltag...

Страница 93: ...duct shall be undamaged and legible Otherwise SUNGROW has the right to refuse to honor the quality guarantee Conditions After replacement unqualified products shall be processed by SUNGROW The custome...

Страница 94: ...7834 service sungrowpower com Australia SUNGROW Australia Group Pty Ltd NSW 61 2 9922 1522 service sungrowpower com au Brazil SUNGROW Power do Brasil Sao Paulo 55 015 9 98197824 latam service sa sungr...

Страница 95: ...rra service spain sungrow co Romania Service Partner Elerex 40 241762250 service romania sungrow co Turkey SUNGROW Deutschland GmbH Turkey Istanbul Representative Bureau Istanbul 90 2127318883 service...

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