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42

Please use the DC terminal within the scope of delivery or purchase the PV con-

nector according to the recommended model below. Equipment damage caused

by the use of unmatched terminals is not covered by the warranty.

•

If the cross-sectional area of the DC cable is 4/6mm

2

, use the PV connector

within the scope of delivery. The recommended model of the female cable con-
nector is PV-KST4-EVO 2 / 6I-UR (Stäubli), and the recommended male cable
connector is PV-KBT4-EVO 2 / 6I-UR (Stäubli).

•

If the cross-sectional area of the DC cable is 10mm

2

, users need to prepare the

PV connector by themselves or order it from SUNGROW. The recommended
model of the female cable connector is PV-KBT4-EVO 2 / 10II-UR (Stäubli), and
the recommended male cable connector is PV-KST4-EVO 2 / 10II-UR (Stäubli).

step 1 Strip the insulation from each DC cable by 8 mm~10 mm.

step 2 Assemble the cable ends with the crimping pliers.

1: Positive crimp contact

2

：

Negative crimp contact

step 3 Lead the cable through cable gland, and insert the crimp contact into the insulator until it

snaps into place. Gently pull the cable backward to ensure firm connection.

step 4 Tighten the cable gland and the insulator.

5 Electrical Connection

User Manual

Содержание SG250HX-US

Страница 1: ...SG250HX USPV Grid Connected InverterUser ManualSG250HX US UEN Ver17 202202 PV Grid Connected Inverter User Manual SG250HX US SG250HX US UEN Ver17 202202...

Страница 2: ......

Страница 3: ...anual are owned by SUNGROW All other trademarks or registered trademarks mentioned in this manual are owned by their respective owners Software Licenses It is prohibited to use data contained in firmw...

Страница 4: ...ofessional training related to the installation and commissioning of elec trical equipment Be able to quickly respond to hazards or emergencies that occur during installation and commissioning Be fami...

Страница 5: ...may lead to death or serious injury Indicates low risk potential hazards that if not avoided may lead to minor or mod erate injury Indicates potential risks that if not avoided may lead to device mal...

Страница 6: ......

Страница 7: ...he Product 8 2 4 LED Indicator 8 2 5 Circuit Diagram 9 2 6 Function Description 10 3 Unpacking and Storage 13 3 1 Unpacking and Inspection 13 3 2 Inverter Storage 13 4 Mechanical Mounting 15 4 1 Safet...

Страница 8: ...minal 37 5 7 3 Connection Procedure 37 5 8 DC Cable Connection 40 5 8 1 PV Input Configuration 40 5 8 2 Assembling the PV Connectors 41 5 8 3 Installing the PV Connector 44 5 9 Wiring of Tracking Syst...

Страница 9: ...Update 75 7 8 6 Password Changing 77 8 System Decommissioning 78 8 1 Disconnecting the Inverter 78 8 2 Dismantling the Inverter 78 8 3 Disposal of the Inverter 79 9 Troubleshooting and Maintenance 80...

Страница 10: ......

Страница 11: ...ng operating and maintaining the product comply with local laws and regulations The safety precautions in this manual are only supplements to local laws and regulations 1 1 Unpacking and Inspection Ch...

Страница 12: ...he inverter are set to OFF otherwise electric shock may occur The PV string will generate lethal high voltage when exposed to sunlight Operators must wear proper personal protective equipment during e...

Страница 13: ...by this is not covered by the warranty Comply with the safety instructions related to PV strings and the regulations re lated to the local grid 1 4 Operation Safety When the inverter is running do not...

Страница 14: ...ves before operating the inverter after it cools down Touching the power grid or the contact points and terminals on the inverter con nected to the power grid may lead to electric shock The power grid...

Страница 15: ...erter Application in PV Power System The inverter must not be connected to a PV string that requires positive or negative grounding Do not connect any local load between the inverter and the AC circui...

Страница 16: ...ID function 2 2 Product Introduction Model Description The model description is as follows Appearance The following figure shows the dimensions of the inverter The image shown here is for refer ence o...

Страница 17: ...used to move the inverter 6 Mounting ears 4 used to hang the inverter onto the mounting bracket 7 DC Switch To safely disconnect the DC circuit whenever necessary 8 Wiring area DC terminals and commu...

Страница 18: ...ection from the power sources Read the user manual before maintenance The table shown here is for reference only The actual product received may differ 2 4 LED Indicator The LED indicator on the front...

Страница 19: ...he following figure shows the main circuit of the inverter figure 2 4 Circuit Diagram DC switches can safely disconnect the PV input when necessary to ensure the safe op eration of the inverter and th...

Страница 20: ...face The inverter is designed with standard RS485 communication interfaces The standard RS485 communication interfaces are used to establish communication with monitoring devices and to upload monitor...

Страница 21: ...close to the ground potential through PID module to suppress PID effect When the PID repair function is enabled the inverter decreases the potential between the positive pole of PV array of N type pan...

Страница 22: ...ts If there are any ques tions contact the PV module manufacturer or refer to the corresponding user manual If the voltage scheme for the anti PID function or the PID repair function does not meet req...

Страница 23: ...ural parts of the product are damaged and check whether the packing list is consistent with the actual ordered product If there are problems with the above inspection items do not install the device a...

Страница 24: ...c inspections Inspection shall be conducted at least once every six months If any insect or rodent bites are found replace the packaging materials in time If the inverter has been stored for more than...

Страница 25: ...b jects or smoke Improper handling may cause personal injury When moving the inverter be aware of its weight and keep the balance to pre vent it from tilting or falling Wear proper protective equipmen...

Страница 26: ...water characteristics sea wind pre cipitation relative humidity terrain and forest coverage Inverters free from direct sunlight direct rain and snow have longer service life Consider sheltered places...

Страница 27: ...hen designing the bracket scheme Consider onsite climate conditions and take anti snow and anti rain measures if necessary Ensure that the waterproof connectors are at least 300mm higher than the grou...

Страница 28: ...lled under the PV module whose supporting bracket is fixed the distance between the top of the inverter and the top of the bracket can be reduced to 400mm The AC cable should be led into the inverter...

Страница 29: ...tch es 4 3 Installation Tools Installation tools include but are not limited to the following recommended ones If necessary use other auxiliary tools on site table 4 1 Tool specification Goggles Earpl...

Страница 30: ...Hydraulic plier Heat gun MC4 Evo2 terminal crimping pliers 4 6mm2 MC4 Evo2 terminal wrench Multimeter 1500 Vdc RJ45 crimping tool Vacuum cleaner 4 4 Moving the Inverter Move the inverters by carrying...

Страница 31: ...ealing screws on the mounting ears with a flat head screwdriver and store them properly Anchor the four supplied screw in handles to the mounting ears and base of the inverter step 2 Lift and move the...

Страница 32: ...er objects Stop hoisting in the event of severe weather such as heavy rain thick fog or strong wind The lifting rings and the sling are not within the delivery scope End 4 5 Installing the mounting br...

Страница 33: ...tion are as follows 4 5 1 PV Bracket Mounted Installation step 1 Assemble the mounting bracket by using the connecting bar step 2 Level the assembled mounting bracket by using the level and mark the p...

Страница 34: ...Metal bracket D Flat washer E Spring washer F Hex nuts M10 End 4 5 2 Wall Mounted Installation step 1 Assemble the mounting bracket by using the connecting bar step 2 Level the assembled mounting brac...

Страница 35: ...t in the sequence of nut spring wash er slat washer C Mounting bracket End 4 6 Installing the Inverter step 1 Take out the inverter from the packing case step 2 Hoist the inverter to the installation...

Страница 36: ...26 End 4 Mechanical Mounting User Manual...

Страница 37: ...amaged and all cables are voltage free before performing electrical work Do not close the AC circuit breaker until the electrical connection is complete Damage to the product caused by incorrect wirin...

Страница 38: ...rm normal operation of the inverter Comply with the safety instructions related to PV strings and the regulations re lated to the utility grid The cable colors in figures in this manual are for refere...

Страница 39: ...al grounding terminal For reliable grounding of the inverter The original sealing plate is suitable for conduits of 3 1 2 In case of conduits of other spec ifications install the provided spare sealin...

Страница 40: ...pipe conduit L1 L2 L3 wire 70 240 PE wire refer to table 5 2 PE wire requirements 4 Communi cation cable Shielded twisted pair 4 5 18 1 1 5 A copper to aluminum adapter terminal is required when an al...

Страница 41: ...6 mm2 the supplied OT terminals can be used If otherwise users should prepare M12 OT terminals by them selves and ensure that the cable cross sectional area is within the range of 0 5 10 mm2 5 4 Crimp...

Страница 42: ...e it may cause electric shock Since the inverter is not equipped with a transformer neither the negative elec trode nor the positive electrode of the PV string can be grounded Otherwise the inverter w...

Страница 43: ...plement an equipotential connection 5 5 2 Connection Procedure step 1 Prepare the cable and OT DT terminal refer to Crimp OT DT terminal step 2 Remove the screw on the grounding terminal and fasten th...

Страница 44: ...ions 5 7 AC Cable Connection 5 7 1 AC Side Requirements Only with the permission of the local grid department the inverter can be con nected to the grid Before connecting the inverter to the grid ensu...

Страница 45: ...night The transformer may be of the liquid immersed type or dry type and shield winding is not necessary The line to line voltage on the LV side of the transformer should endure the AC side out put v...

Страница 46: ...5 73kA Thus the MCCB lcu of the LV cabinet branch circuit should be no less than 35 73kA at 880Vac The temperature and altitude derating should be taken into account when a circuit breaker is working...

Страница 47: ...s for OT DT Terminal OT DT terminals not included in the delivery scope are required for fixing AC cables to the terminal block Purchase the OT DT terminals according to the following requirements OT...

Страница 48: ...ecific length as described in the figure below step 6 If wiring of tracking system power cable is required refer to 5 9 Wiring of Tracking System Power Cable Optional Otherwise skip performing this st...

Страница 49: ...If a phase wire is connected to the PE terminal or N terminal unrecoverable damage may be caused to the inverter Ensure that the depth L of the socket used is not less than 28mm step 9 Install the pro...

Страница 50: ...ace and SUNGROW shall not be held liable for any damage caused If the DC input cables are reversely connected and the DC switch has been ro tated to ON do not operate immediately Otherwise the inverte...

Страница 51: ...inverter to PV inputs the specifications in the following table should be met Open circuit Voltage Limit Max current for input connector 1 500V 30A 5 8 2 Assembling the PV Connectors High voltage may...

Страница 52: ...onal area of the DC cable is 10mm2 users need to prepare the PV connector by themselves or order it from SUNGROW The recommended model of the female cable connector is PV KBT4 EVO 2 10II UR St ubli an...

Страница 53: ...is reversed the inverter will be in a fault or alarm state and will not operate normally End Observe the specifications of the cable manufacturer with regard to the permitted bending radius Make sure...

Страница 54: ...ntil there is an audible click step 4 Follow the foregoing steps to connect PV connectors of other PV strings step 5 Seal any unused PV terminal with a terminal cap End 5 9 Wiring of Tracking System P...

Страница 55: ...layer and insulation layer by specific length as described in the figure below step 4 Install the OT terminal and press it tight step 5 Stack the OT terminals on the OT DT terminal of the AC cables an...

Страница 56: ...on the OT DT terminals of the AC cable Otherwise it will cause over heat or even burn step 6 Gently pull the cable backwards to ensure firm connection and fasten the swivel nut clockwise step 7 Insta...

Страница 57: ...the cable connecting the internal wiring terminal of the inverter and the fuse should be less than 2 5m 5 10 RS485 Connection 5 10 1 Interface Description The following figure shows the position of t...

Страница 58: ...6 RS485_2 port terminal definition No Definition B2 RS485 B OUT RS485B differential signal A2 RS485 A OUT RS485A differential signal B2 RS485 B IN RS485B differential signal A2 RS485 A IN RS485A diffe...

Страница 59: ...inverter in the daisy chain figure 5 4 Multi inverter Connection When more than 15 inverters are connected on the same daisy chain in order to ensure the communication quality the Logger at the first...

Страница 60: ...n Procedure Terminal Block RS485 communication cables should be shielded twisted pair cables or shielded twisted pair Ethernet cables There are four RS485 communication terminals COM1 COM2 COM3and COM...

Страница 61: ...12 18 b step 3 Secure the cable to the terminal base step 4 Insert the terminal base into the corresponding terminal step 5 Pull the cable gently to make sure it is secured tighten the swivel nut cloc...

Страница 62: ...pecial communication cables The RS 485 port of the com munication acquisition equipment supports the transparent transmission of MODBUS RTU protocol and is completely compatible with the monitoring de...

Страница 63: ...rmal close contact figure 5 6 Normal Open Contact figure 5 7 Normal Close Contact Devices connected to the relay should comply with related requirements AC Side Requirements DC Side Requirements Max v...

Страница 64: ...ry Contact 5 12 2 Wiring Procedure Refer to the wiring of terminal block described in chapter 5 10 3 Connection Procedure Ter minal Block 5 13 Closing the Wiring Compartment step 1 Release the limit l...

Страница 65: ...items mentioned above meet the requirements proceed as follows to start up the inverter for the first time step 1 Rotate one DC switch of the inverter to the ON position When the indicator blinks blue...

Страница 66: ...56 step 5 The home page is automatically displayed when the initialization is completed The indicator is steady blue and the inverter is in grid connected operation End 6 Commissioning User Manual...

Страница 67: ...ntenance on the inverter This manual describes only how to achieve near end maintenance via the Bluetooth connection For remote maintenance through the Eye WiFi or WiNet S refer to the related manuals...

Страница 68: ...tween The Bluetooth function of the mobile phone is enabled The inverter can only pair with one phone at a time through Bluetooth 7 4 2 Login Procedure step 1 Open the App to enter the login page tap...

Страница 69: ...on the side of the inverter for Bluetooth connection The connection is successfully established if the LED indicator blinks blue figure 7 2 Bluetooth Connection step 3 Enter the identity verification...

Страница 70: ...deration of account security To set inverter parameters related to grid protection and grid support contact SUNGROW to obtain the advanced account and corresponding password step 4 If the inverter is...

Страница 71: ...rors step 5 After finishing the settings tap TUNR ON DEVICE at the upper right corner and the device will be initialized The App will send start instructions and the device will start and operate step...

Страница 72: ...flow chart Display the PV power generation power feed in power etc The line with an arrow indicates energy flow between con nected devices and the arrow pointing indicates energy flow direction 5 Powe...

Страница 73: ...runs according to the scheduling instructions received from the monitoring background Fault If a fault occurs inverter will automatically stop operation and discon nect the AC relay The fault informa...

Страница 74: ...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 voltage of the xth MPPT MPPT x Current Th...

Страница 75: ...cords Fault Alarm Record Tap Fault Alarm Record to enter the screen as shown in the following figure figure 7 7 Fault Alarm Record Click to select a time segment and view corresponding records The inv...

Страница 76: ...daily power gen eration graph monthly power generation histogram annual power generation histogram and total power generation histogram table 7 5 Explanation of power yields records Parameter Descrip...

Страница 77: ...k the power yields histogram Event Record Tap Event Record to view event record list Click to select a time segment and view corresponding records The inverter can at most record the latest 400 events...

Страница 78: ...ata logging and power generation value The clock is in 24 hour format Software Version Version information of the current firmware 7 8 2 Operation Parameters Running Time Tap Settings Operation Parame...

Страница 79: ...the inverter reports a PID false alarm and reminds the user to take corresponding meas ures After processing clear the alarm via this parameter PID Scheme Apply negative or positive voltage Full Day...

Страница 80: ...0 rated power 1s 1200s Active power gradient control Switch for enabling disabling the active power rate settable function Enable Disable Active power decline gradient The decline rate of inverter ac...

Страница 81: ...ing figure figure 7 16 Reactive Power Regulation table 7 8 Reactive Power Regulation Parameter Definition Setting Description Range Reactive power genera tion at night Switch for enabling disabling ni...

Страница 82: ...the Q P mode curve Curve A Curve C 0 800 1 000 Curve B 0 600 0 600 Ac tive Overload Rate 1000 QP_K2 Power factor at P2 on the Q P mode curve Curve A Curve C 0 800 1 000 Curve B 0 600 0 600 Ac tive Ov...

Страница 83: ...U2 60 0 60 0 Overload Rate 1000 QU_V3 Pre set grid voltage U3 that is reactive according to the grid voltage 100 0 120 0 QU_Q3 Pre set proportion of reactive power according to the grid voltage U3 60...

Страница 84: ...s Serial Port Parameters to enter the corre sponding interface as shown in the following figure figure 7 19 Serial Port Parameters table 7 9 Serial Port Parameters Parameter Range Device Address 1 246...

Страница 85: ...ownload failure due to poor on site network signal it is recommended to download the firmware package to the mobile device in advance Upgrade when the irradiance is strong to prevent upgrade failure s...

Страница 86: ...y downloaded firmware package figure 7 22 Downloading Firmware Package step 4 Login the App via local access mode Refer to 7 4 Login step 5 Tap More on the App home screen and then tab Firmware Upgrad...

Страница 87: ...ing Tap Modify Password to enter the modify password screen as shown in the following figure figure 7 24 Change Password The password shall consisit of 8 20 digits including letters and numbers User M...

Страница 88: ...he capacitors inside the inverter completely discharge step 4 Ensure that the DC cable is current free via a current clamp End 8 2 Dismantling the Inverter Risk of burn injuries and electric shock Aft...

Страница 89: ...conservation End 8 3 Disposal of the Inverter Users take the responsibility for the disposal of the inverter Please scrap the inverter in accordance with relevant local regulations and stand ards to a...

Страница 90: ...tual 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 set via the Ap...

Страница 91: ...ted to the correct terminal whether the live wire and the N wire are correctly in place 4 Check whether the AC circuit breaker is connected 5 Contact Sungrow Customer Service if the pre ceding causes...

Страница 92: ...s of reverse polarity If so disconnect the DC switch and adjust the polarity when the string current drops below 0 5 A 2 Contact Sungrow Customer Service if the pre ceding causes are ruled out and the...

Страница 93: ...to code 595 are corresponding to string 17 to string 32 respectively 37 Excessively High Ambient Temperature Generally the inverter will resume operation when the internal or module temperature return...

Страница 94: ...sulation between the ground cable and the live wire is normal 3 Contact Sungrow Customer Service if the pre ceding causes are ruled out and the fault persists 88 Electric Arc Fault 1 Disconnect the DC...

Страница 95: ...5 Inverter Parallel Communication Alarm 1 Check whether the communication cable and the terminals are abnormal If so correct them to ensure reliable connection 2 Reconnect the communication cable of t...

Страница 96: ...string current drops below 0 5 A 2 Contact Sungrow Customer Service if the pre ceding causes are ruled out and the fault persists The code 264 to code 279 are corresponding to string 1 to string 20 re...

Страница 97: ...When the fault occurs it is forbidden to directly disconnect the DC switch and unplug PV termi nals when the direct current is greater than 0 5A 2 Wait until the direct current of the inverter falls...

Страница 98: ...Wear pro tective gloves before operating the inverter after it cools down To prevent misuse or accidents caused by unrelated personnel Post prominent warning signs or demarcate safety warning areas a...

Страница 99: ...y when necessary Once a year Electrical Connection Check whether all cable are firmly connected in place Check whether a cable is damaged especially the part contacting the met al enclosure Six months...

Страница 100: ...cessary to clean dirty fans and replace the broken fans in a timely manner The operation procedure is as follows step 1 Stop the inverter see 8 1 Disconnecting the Inverter step 2 Loosen the screw on...

Страница 101: ...ide and one on the right side Clean them with a soft brush or vacuum cleaner and replace them when necessary step 5 Reinstall the fan back to the inverter in reverse order and restart the inverter End...

Страница 102: ...30A Max DC Short circuit current 50 A 12 Output AC AC output power 250 kVA 30 225 kVA 40 200 kVA 50 Max AC output current 180 5 A Nominal AC voltage 3 PE 800 V AC voltage range 680 880V Nominal grid f...

Страница 103: ...o 140 Allowable relative humidity range non condensing 0 100 Cooling method Smart forced air cooling Max operating altitude 4000 m 3000 m derating 13123 ft 9843 ft derating Display LED Bluetooth APP C...

Страница 104: ...maximum wiring distance Number of inverter Maximum wiring distance unit m 16AWG 1 31mm2 17AWG 1 026mm2 1 13030 10552 2 6515 5276 3 4343 3517 4 3258 2638 5 2606 2110 6 2172 1759 7 1861 1507 8 1629 131...

Страница 105: ...iod to repair the faulty device Exclusion of Liability In the following circumstances SUNGROW has the right to refuse to honor the quality guarantee The free warranty period for the whole machine comp...

Страница 106: ...to provide you the best assistance Model of the device Serial number of the device Fault code name Brief description of the problem For detailed contact information please visit https en sungrowpower...

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