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Sungrow SG36CX-US, User Manual

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Sungrow SG36CX-US User Manual Download Page 53

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5.8

Communication Wiring Board

The communication board of the inverter includes two layers. The upper layer

communication board mainly includes RS485 communication interfaces while the lower

layer communication board mainly includes DI/DO interface and DRM interface.

5.9

RS485 Communication

5.9.1 Interface Description

As shown in the Figure below, the inverter is equipped with three RS485 communication

interfaces and one dip switch.

All three interfaces can be connected to a data acquisition device (Data Logger), to

achieve data exchange with PC or other monitoring devices.

The RS485-1 crimp and the RJ45 interface can be applied to applications where

multiple inverters communicate in a daisy-chain form.

User Manual

5 Electrical Connection

Summary of Contents for SG36CX-US

Page 1: ...User Manual PV Grid Connected Inverter SG36_60CX US SG36_60CX US UEN Ver11 202009 WWW SUNGROWPOWER COM...

Page 2: ......

Page 3: ...s S So of ft tw wa ar re e L Liic ce en ns se es s It is prohibited to use data contained in firmware or software developed by SUNGROW in part or in full for commercial purposes by any means It is pro...

Page 4: ...Read the manual and other related documents before performing any work on the inverter is carried out Documents must be stored carefully and be available at all times The contents of the manual will...

Page 5: ...a an na at tiio on n Indicates a situation that if not avoided could result in equipment or property damage Indicates additional information emphasized contents or tips that may be helpful e g to help...

Page 6: ......

Page 7: ...ator Panel 7 2 2 5 DC Switch 8 2 3 Circuit Diagram 9 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 Delivery 12 3 4...

Page 8: ...Procedure 32 5 5 AC Cable Connection 34 5 5 1 AC Side Requirements 34 5 5 2 Requirements for OT DT Terminal 35 5 5 3 Aluminium Cable Requirements 35 5 5 4 Connection Procedure 36 5 6 DC Cable Connecti...

Page 9: ...and Install 56 7 3 Login 57 7 3 1 Requirements 57 7 3 2 Login Steps 57 7 4 Function Overview 59 7 5 Home page 60 7 6 Running Information 62 7 7 History Record 64 7 7 1 Fault and Alarm Records 64 7 7 2...

Page 10: ...VIII 10 2 Wring Distance of DI Dry Contact 94 10 3 Quality Assurance 95 10 4 Contact Information 96...

Page 11: ...ns 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 in this manual 1 1 PV...

Page 12: ...minate the operating license Risk of inverter damage or personal injury Do not pull out the PV connectors when the inverter is running Wait at least 5 minutes for the internal capacitors to discharge...

Page 13: ...t tiio on n Danger to 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 There is a danger...

Page 14: ...gu ur re e 2 2 1 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 i...

Page 15: ...Product Introduction 2 2 1 Model Description The device model description is as follows Take SG36CX US as an example M Mo od de ell N No om miin na all O Ou ut tp pu ut t P Po ow we er r N No om miin...

Page 16: ...g bracket 3 Side handles 2PCS used to move the inverter 4 Labels Warning symbols 5 Additional grounding terminals 2PCS use at least one of them to ground the inverter 6 Bottom handles 2PCS used to mov...

Page 17: ...m 9 1 11 6 9 2 65kg 143 3lbs 2 2 4 LED Indicator Panel As an HMI the LED indicator panel on the front of the inverter can indicate the present working state of the inverter Table 2 1 LED indicator des...

Page 18: ...the AC and DC sides are powered down The inverter may carry voltage in case of fault Test the inverter before performing operation on it 2 2 5 DC Switch The DC switch is used to disconnect the DC curr...

Page 19: ...t tiio on n The inverter provides various settable parameters Users can set parameters via the App to meet the requirements C Co om mm mu un niic ca at tiio on n iin nt te er rf fa ac ce e The inverte...

Page 20: ...the voltage of the PV string to ground is 500Vdc by default and the default value can be modified through the App A AF FC CI I f fu un nc ct tiio on n AFCI activation This function can be enabled to d...

Page 21: ...spose of the original packing case It is recommended to store the inverter in it 3 2 Identifying the Inverter The nameplate can be found on both the inverter and the packing case It provides informati...

Page 22: ...A US CA mark of conformity 3 3 Scope of Delivery F Fiig gu ur re e 3 3 2 2 Scope of Delivery a The mounting bracket includes 2 mounting bracket components and 1 connecting bar b The SG36CX US SG60CX U...

Page 23: ...rage temperature must be always between 40 C and 70 C and the storage relative humidity must be always between 0 and 95 non condensing In case of stacking storage the number of stacking layers should...

Page 24: ...nds or bruise System performance loss due to poor ventilation Keep the heat sinks uncovered to ensure heat dissipation performance 4 2 Location Requirements Select an optimal mounting location for saf...

Page 25: ...in and forest coverage Prevent the inverter from direct exposure to sun rain and snow The inverter should be well ventilated Ensure air circulation Never install the inverter in living areas The inver...

Page 26: ...s 300 350mm away from the DC connector AC waterproof terminal and communication waterproof terminal The various waterproof terminals should be tightened in accordance with the torque requirements in t...

Page 27: ...ground surface is determined according to the bending radius of the AC cable used and the installation environment In addition the following conditions must be met The distance between the bottom of...

Page 28: ...s as shown below In case of back to back installation reserve specific clearance of at least 500m between the two inverters as is shown below Install the inverter at an appropriate height for ease of...

Page 29: ...ted to the following recommended ones If necessary use other auxiliary tools on site Table 4 1 Tool Specification N No o S Sp pe ec ciif fiic ca at tiio on n a M2 M6 b M4 M6 M8 c Drill bit 12 14 d Inc...

Page 30: ...the side handles and bottom handles Inappropriate moving operation may cause personal injury It is recommended that at least two installers carry the inverter together and wear protective equipment su...

Page 31: ...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 4 Remove the lifting rings and reassem...

Page 32: ...ensions of mounting bracket T Ty yp pe e L L1 1 L L2 2 H H1 1 H H2 2 SG36CX US 687mm 26 7 640mm 25 2 564mm 22 2 235mm 9 3 SG60CX US 767mm 30 2 720mm 28 3 614 5mm 24 2 285mm 11 2 4 6 PV Tracker Mounted...

Page 33: ...n n S So ou ur rc ce e Grub screw 6 M4 10 Delivery scope 2 M6 65 Delivery scope Bolt assembly 4 M10 Delivery scope 4 6 2 Mounting Steps Step 1 Assemble the mounting bracket by using the connecting bar...

Page 34: ...the inverter from the packing case Step 5 Hoist the inverter to the installation position when necessary refer to 4 4 2 Hoisting Transport If the installation position is not high enough skip performi...

Page 35: ...to expansion bolt specifications Socket wrench Including 16mm socket Wrench Opening 16mm S Sp pa ar re e p pa ar rt ts s I It te em m Q Qu ua an nt tiit ty y S Sp pe ec ciif fiic ca at tiio on n S So...

Page 36: ...e installation site Step 3 Insert the expansion bolts into the holes and secure them with a rubber hammer Fasten the nut with a wrench to expand the bolt Remove the nut spring washer and flat washer a...

Page 37: ...5 Take out the inverter from the packing case Step 6 Hoist the inverter to the installation position when necessary refer to 4 4 2 Hoisting Transport If the installation position is not high enough s...

Page 38: ...28 E En nd d 4 Mechanical Mounting User Manual...

Page 39: ...ion Ensure that all cables are voltage free before performing cable connection Any improper operations during cable connection can cause device damage or personal injury Only qualified personnel can p...

Page 40: ...COM1 For Communication module connection Optional COM2 For digital input and output DI DO wiring COM3 For RS485 communication wiring C AC junction box Remove the protective case and use the junction b...

Page 41: ...e ea a 1 DC cable PV cable complying with 1 500V standard 6 9 12 10AWG 2 Additional Groundin g cable Outdoor single core copper wire cable The same as that of the PE wire in the AC cable 3 4 AC cable...

Page 42: ...ditional grounding terminal cannot replace the connection of the PE terminal of the AC cable Make sure thoes terminals are both grounded reliably 5 4 1 Additional Grounding Requirements All non curren...

Page 43: ...river Step 3 Apply paint to the grounding terminal to ensure corrosion resistance E En nd d The grounding screws have been anchored to the side of the inverter before delivery and do not need to be pr...

Page 44: ...The line to line voltage on the LV side of the transformer should endure the output voltage of inverter When the transformer is connected to to the IT grid to ground withstanding voltage of the LV wi...

Page 45: ...AC cables to the terminal block Purchase the OT DT terminals according to the following requirements Specification M8 Dimensions a 30mm 8 4mm b 10 5mm c 16mm F Fiig gu ur re e 5 5 2 2 Dimensions of T...

Page 46: ...ench to remove the four screws on the AC junction box Step 3 Use a Phillips screwdriver to remove the two screws on the transparent protective cover Step 4 Use a allen wrench to remove the screw on th...

Page 47: ...corresponding terminals Observe the terminal layout on the block Do not connect the phase wires to PE terminal or PE wire to N terminal Otherwise unrecoverable damage to the inverter will occur User M...

Page 48: ...ips screwdriver Step 9 Secure the cover of the AC junction box and secure it with torx wrench E En nd d 5 6 DC Cable Connection Electric shock The PV array will generate lethal high voltage once expos...

Page 49: ...1 n SG36CX US SG60CX US n 8 12 and each PV input is designed with an MPP tracker Each PV input operates independently and has its own MPPT In this way string structures of each PV input may differ fro...

Page 50: ...before finishing electrical connection Use MC4 DC terminals if the maximum input voltage is no more than 1 000V Use MC4 DC terminals if the maximum input voltage is greater than 1 000V To purchase th...

Page 51: ...F position Skip performing step1 when the actual device is not equipped with DC switches Step 2 Check the cable connection of the PV string for correct polarity and ensure that the open circuit voltag...

Page 52: ...damage caused Step 4 Follow the foregoing steps to connect PV connectors of other PV strings Step 5 Seal the unused PV terminals with the terminal caps E En nd d 5 7 Communication Junction Box 5 7 1 R...

Page 53: ...ce 5 9 RS485 Communication 5 9 1 Interface Description As shown in the Figure below the inverter is equipped with three RS485 communication interfaces and one dip switch All three interfaces can be co...

Page 54: ...communication protocols cannot be adopted at the same time S Siin ng glle e iin nv ve er rt te er r c co om mm mu un niic ca at tiio on n s sy ys st te em m In case of a single inverter communication...

Page 55: ...he communication cable should be single point grounded F Fiig gu ur re e 5 5 4 4 Configuration of dip switch N 15 The length of the RS485 cable and twisted pair cable should be no longer than 1 200m I...

Page 56: ...communication junction box see 5 7 1 Remove the Junction Box Step 2 Strip the protection layer and insulation layer by appropriate length Step 3 Loosen the swivel nut of the junction box and select an...

Page 57: ...o perform the following steps Step 7 Install the junction box see 5 7 2 Install the Junction Box Step 8 Pull the cable gently to make sure it is secured tighten the swivel nut clockwise E En nd d 5 9...

Page 58: ...tool Step 4 Insert the RJ45 connector to the RJ45 jack Step 5 If other wiring operations need to be performed on the communication board finish the wiring operations before performing the following st...

Page 59: ...D DO O t te er rm miin na all f fa au ullt t o ou ut tp pu ut t d dr ry y c co on nt ta ac ct t The relay can be set to fault alarm output and user can configure it to be a normally open contact COM N...

Page 60: ...Max voltage 30Vdc Max current 5A D DI I t te er rm miin na all e em me er rg ge en nc cy y s sh hu ut td do ow wn n d dr ry y c co on nt ta ac ct t the dry contact can be configured to be an emergenc...

Page 61: ...in Chapter 5 9 3 Connection Procedure Crimp 5 9 3 Connection Procedure 5 11 Communication Module Connection optional Connect the communication module produced by SUNGROW such as WiNet Eye or E Net to...

Page 62: ...ified with PVRSS which could send or cease sending keep alive signals to RSDs or Smart PV Panels integrated with RSDs according to NEC 690 12 CA22 2 NO 330 regulations When the SUNGROW inverter is con...

Page 63: ...There is no additional connection for the SUNGROW inverter directly to RSDs SUNGROW PLC transmitter supports most of the popular RSDs or Smart PV panel brands and models Confirm with SUNGROW to check...

Page 64: ...e inverter for the first time Step 1 Rotate the DC and AC switch of the inverter to the ON position Step 2 Connect the AC switch if applicable between the inverter and the grid Step 3 Connect the DC s...

Page 65: ...55 A visible place on PV System Disconnect panel Service Entrance panel etc when there are multiple inverters in the PV system User Manual 6 Commissioning...

Page 66: ...a the Bluetooth connection For maintenance through SUNGROW communication device refer to the related manuals in SUNGROW website Screenshots in this manual are based on the Android system V2 1 6 and th...

Page 67: ...ogin page click on Local Access at the bottom of the page to go to the next page Step 2 Click on Bluetooth after which the Bluetooth search screen pops up automatically and select the to be connected...

Page 68: ...support contact SUNGROW to obtain the advanced account and corresponding password Step 4 If the inverter is not initialized you will enter the quick setting screen to initialize protection parameters...

Page 69: ...requirements of IEEE 1547 IEEE 1547 1 California Electric Rule 21 Hawaiian Electric Co SRD UL 1741 SA V1 1 and Supplement SA In Canadian region conformity to CSA C22 2 No 107 1 01 Step 5 If the invert...

Page 70: ...e 7 7 5 5 Home page Table 7 1 Home page description N No o D De es siig gn na at tiio on n D De es sc cr riip pt tiio on n 1 Date and time System date and time of the inverter 2 Inverter state Present...

Page 71: ...rter tracks the PV arrays maximum power point MPP and converts the DC power into AC power This is the normal operation mode shutdown Inverter is stopped Key shutdown Inverter will shutdown operation b...

Page 72: ...rmally the alarm or fault icon will be displayed in the lower right corner of the inverter icon in power flow chart The user can tap this icon to enter the alarm or fault screen to view detailed infor...

Page 73: ...n resistance value of the input side to the protection ground Country Information Power Limitation Mode Reactive Power Mode Input Total DC Power DC side total input power MPPT x Voltage The input volt...

Page 74: ...tory record screen users can check the fault alarm record yield records and event records 7 7 1 Fault and Alarm Records Tap to view fault alarm records as shown in the following Figure F Fiig gu ur re...

Page 75: ...r D De es sc cr riip pt tiio on n 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 nominal power Daily energy histog...

Page 76: ...ve Swipe 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 inverter can at most recor...

Page 77: ...s System Parameters Tap to enter the system parameter screen on which boot shutdown instruction can be sent to the inverter set the date and time and information such as ARM sorftware version and MDSP...

Page 78: ...as shown in the following Figure F Fiig gu ur re e 7 7 1 15 5 Running Time PID Parameters Tap to enter PID Parameters screen on which PID recovery function can be enabled or disabled and PID alarm an...

Page 79: ...ng Figure F Fiig gu ur re e 7 7 1 18 8 Power Regulation Parameters Table 7 6 Active power regulation P Pa ar ra am me et te er r D De ef fiin niit tiio on n S Se et tt tiin ng g d de es sc cr riip pt...

Page 80: ...determine whether the inverter is in stop state when the limited power reaches 0 Enable Disable Table 7 7 Reactive power regulation P Pa ar ra am me et te er r D De ef fiin niit tiio on n S Se et tt...

Page 81: ...Active Overload Rate 1000 QP_EnterVoltage 100 0 110 0 QP_ExitVoltage 90 0 100 0 QP_EXitPower 1 0 20 0 QP_EnableMode Yes No Q U Curve Selection of Q U curve Curve A Curve B Curve C QU_V1 Pre set grid v...

Page 82: ...rid voltage U4 that is reactive according to the grid voltage 100 0 120 0 QU_Q4 Pre set proportion of reactive power according to the grid voltage U4 0 60 0 Overload Rate 1000 QU_EnterPower Pre set ac...

Page 83: ...nication Parameters screen on which the user can set the deivice address of inverter as shown in the following Figure F Fiig gu ur re e 7 7 2 21 1 Communication Parameters Inappropriate parameter sett...

Page 84: ...a data cable find the folder iSolarCloud application via iTunes iMazing or iTools and copy the update package to the folder Document update U Up pg gr ra ad de e Tap to enter the firmware upgrade scre...

Page 85: ...75 F Fiig gu ur re e 7 7 2 23 3 Change password The password shall consisit of 8 20 digits including letters and numbers User Manual 7 iSolarCloud App...

Page 86: ...side the inverter completely discharge Step 4 Ensure that the DC cable is current free via a current clamp Step 5 Insert a MC4 wrench into the notch and press the wrench with an appropriate force to r...

Page 87: ...nstalled in the future please refer to 3 4 Inverter Storage for a proper storage method E En nd d 8 3 Disposal of the Inverter Users take the responsibility for the disposal of the inverter Some parts...

Page 88: ...connected to the grid after the grid returns to normal If the fault occurs repeatedly 1 Measure the actual grid voltage and contact the local electric power company for solutions if the grid voltage i...

Page 89: ...ntact SUNGROW 005 Grid low voltage The grid voltage is lower than the set protection value Generally the inverter will be reconnected to the grid after the grid returns to normal If the fault occurs r...

Page 90: ...is lower than the lower limit of the inverter 010 Grid power outage AC switch or circuit is disconnected Generally the inverter will be reconnected to the grid after the grid returns to normal If the...

Page 91: ...for solutions if the grid parameter exceeds the set value 2 If the fault is not caused by the foregoing reasons and still exists contact SUNGROW 014 10 minute grid overvoltage the grid voltage exceed...

Page 92: ...ge of the local power company modify the grid voltage imbalance parameter through the App or LCD screen 3 If the fault is not caused by the foregoing reasons and still exists contact SUNGROW 019 020 D...

Page 93: ...s 038 Device anomaly Wait for the inverter 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...

Page 94: ...ult still exists contact SUNGROW 047 PV input configuration abnormal PV input mode error Shutdown and disconnect the inverter Reset the input mode of the PV array 048 050 053 056 059 060 Device anomal...

Page 95: ...er the ambient environment is abnormal If so remove the corresponding abnormity 2 If the fault is not caused by the foregoing reasons and still exists contact SUNGROW 088 Electric arc fault 1 Disconne...

Page 96: ...th PV string needs to be connected If not ignore the alarm and If so check the connection status and make sure it is connected reliably 2 Check if the xth DC fuse is damaged If so replace the fuse 3 I...

Page 97: ...oing reasons and still exists contact SUNGROW The code 548 to code 563 are corresponding to string 1 to string 16 respectively 564 571 String x reverse connection alarm 1 Check whether the correspondi...

Page 98: ...rresponding PV strings connected to this inverter maybe still keep alive due to PLC signals injected from other alive inverters once the DC cables are not separated from inverter to inverter In this s...

Page 99: ...le entry is insufficiently sealed or the gap is excessively large and reseal the entry when necessary Once a year Electrical Connection Check whether all cable are firmly in place Check whether a cabl...

Page 100: ...nverter may not be cooled down and inverter efficiency may decrease Therefore it is necessary to clean dirty fans and replace the broken fans in a timeiy manner The operation procedure is as follows S...

Page 101: ...91 Step 5 Reinstall the fan back to the inverter in reverse order and restart the inverter E En nd d User Manual 9 Troubleshooting and Maintenance...

Page 102: ...2 Max PV input current 26A 4 26A 6 Max current for input connector 30A Max DC Short circuit current per MPPT 45A O Ou ut tp pu ut t A AC C AC output power 36 kVA 113 45 30 kVA 122 50 60 kVA 113 45 50...

Page 103: ...nsions W H D Inverter 702 595 310 mm 27 6 23 4 12 2 Wire Box 231 295 234 mm 9 1 11 6 9 2 Inverter 782 645 310 mm 30 7 25 4 12 2 Wire Box 231 295 234 mm 9 1 11 6 9 2 Weight 54 kg 119 0 lbs 65 kg 143 3...

Page 104: ...contact must meet the requirements in the Table below The wiring distance L is the total length of all DI signal cables LK refers to the cable length between the DI dry contact terminal of the kth in...

Page 105: ...ance is less than 300 number of inverter 10 3 Quality Assurance When product faults occur during the warranty period SUNGROW will provide free service or replace the product with a new one E Ev viid d...

Page 106: ...rce majeure For faulty products in any of above cases if the customer requests maintenance paid maintenance service may be provided based on the judgment of SUNGROW 10 4 Contact Information Should you...

Page 107: ...ungrowpower com M Ma alla ay ys siia a Sungrow SEA Selangor Darul Ehsan 60 19 897 3360 service my sungrowpower com P Ph hiilliip pp piin ne es s Sungrow Power Supply Co Ltd Mandaluyong City 63 9173022...

Page 108: ...n sungrowpower com B Be ellg giiu um m N Ne et th he er rlla an nd ds s a an nd d L Lu ux xe em mb bo ou ur rg g B Be en ne ellu us s Service only NL 31 08000227012 service sungrow emea com P Po olla...

Page 109: ...Technology Industrial Development Zone 230088 Hefei P R China Tel 86 551 6532 7834 6532 7845 Web www sungrowpower com E mail info sungrow cn Sungrow Power Supply Co Ltd Specifications are subject to c...

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