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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. Tighten the
cable gland and the insulator (torque 2.5 N.m to 3 N.m).

step 4

Check for polarity correctness.

If the PV polarity is reversed, the inverter will be in a fault or alarm state and will

not operate normally.

-- -- E

5.7.3 Installing the PV Connector

step 1

Rotate the DC switch to “OFF” position.

User Manual

5 Electrical Connection

Содержание SG125HX

Страница 1: ...User Manual PV Grid Connected Inverter SG125HX SG125HX UEN Ver14 202105 WWW SUNGROWPOWER COM...

Страница 2: ......

Страница 3: ...in this manual are owned by SUNGROW All other trademarks or registered trademarks mentioned in this manual are owned by their respective owners S So of ft tw wa ar re e L Liic ce en ns se es s It is...

Страница 4: ...llation and commissioning of electrical system as well as dealing with hazards Knowledge of the manual and other related documents Knowledge of the local regulations and directives H Ho ow w t to o U...

Страница 5: ...avoided could result in minor or moderate injury Indicates a situation that if not avoided could result in equipment or property damage Indicates additional information emphasized contents or tips tha...

Страница 6: ......

Страница 7: ...rage 12 3 1 Unpacking and Inspection 12 3 2 Inverter Storage 12 4 Mechanical Mounting 13 4 1 Safety during Mounting 13 4 2 Location Requirements 13 4 2 1 Environment Requirements 14 4 2 2 Carrier Requ...

Страница 8: ...ctors 38 5 7 3 Installing the PV Connector 39 5 8 Communication Junction Box 41 5 9 Communication Wiring Board 42 5 10 RS485 Connection 42 5 10 1 Interface Description 42 5 10 2 RS485 Communication Sy...

Страница 9: ...ssword Changing 71 8 System Decommissioning 72 8 1 Disconnecting the Inverter 72 8 2 Dismantling the Inverter 72 8 3 Disposal of the Inverter 73 9 Troubleshooting and Maintenance 74 9 1 Troubleshootin...

Страница 10: ......

Страница 11: ...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 Panels...

Страница 12: ...ersonal injury Do not connect or disconnect the PV and AC connectors when the inverter is running Wait at least 5 minutes for the internal capacitors to discharge after all electric devices are remove...

Страница 13: ...of the type certificate marking Risk of inverter damage due to electrostatic discharge ESD By touching the electronic components you may damage the inverter For inverter handling be sure to avoid any...

Страница 14: ...pplication 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 circuit break...

Страница 15: ...Introduction M Mo od de ell D De es sc cr riip pt tiio on n The model description is as follows A Ap pp pe ea ar ra an nc ce e The following figure shows the dimensions of the inverter The image show...

Страница 16: ...inals and communication terminals For details refer to 5 2 Terminal Description 5 Side handles To move the inverter 6 Side handles To move the inverter 7 Nameplate To clearly identify the product incl...

Страница 17: ...ce the inverter Disconnect the inverter from all the external power sources before maintenance Burn danger due to the hot surface that may exceed 60 C Do not touch live parts for 5 minutes after disco...

Страница 18: ...Bluetooth communication is connected and there is data communication System fault occurs Gray OFF Both the AC and DC sides are powered down 2 5 Circuit Diagram The following figure shows the main circ...

Страница 19: ...cheduling each PV unit adopts one master multi slave structure COM100A sends scheduling message which is modulated into high frequency signals by the PLC host and the three phase AC cable is used as a...

Страница 20: ...herefore the PV string to ground voltage is a negative value Before enabling the PID recovery function make sure the voltage polarity of the PV modules to ground meets requirement If there are any que...

Страница 21: ...on na all AFCI activation This function can be enabled to detect whether arc occurs in the DC cable of the inverter AFCI self test This function is intended to detect whether the AFCI function of the...

Страница 22: ...Do not dispose of the original packing case It is recommended to store the device in the original packing case when the device is decommissioned 3 2 Inverter Storage Proper storage is required if the...

Страница 23: ...ving and positioning the inverter Improper operation may cause injuries or serious wounds In the case of poor ventilation the system performance may compromise Keep the heat sinks uncovered to ensure...

Страница 24: ...irect exposure to sun rain and snow The inverter should be well ventilated Ensure air circulation Never install the inverter in living areas The inverter will generate noise during operation affecting...

Страница 25: ...etween the inverters Install the inverter at an appropriate height for ease of viewing LED indicator and operating switch es 4 3 Installation Tools Installation tools include but are not limited to th...

Страница 26: ...mer drill 12 14 Pliers Marker Level Rubber mallet Socket wrench set 16mm Wrench 13 mm 16 mm Wrist strap Wire cutter Wire stripper Hydraulic plier Heat gun H4 Plus terminal crimping pliers 4 6mm2 H4 Pl...

Страница 27: ...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 such as smash proof...

Страница 28: ...step 2 Lead the sling through the two lifting rings and fasten the tie down strap step 3 Hoist the inverter and stop to check for safety when the inverter is 100mm above the ground Continue hoisting t...

Страница 29: ...cket Inverter is installed on the wall and bracket by means of mounting bracket The expansion plug set shown below is recommended for the installation f fiig gu ur re e 4 4 1 1 Dimensions of mounting...

Страница 30: ...ted 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 positions for drilling holes on the instal...

Страница 31: ...nd d 4 6 Installing the Inverter step 1 Take out the inverter from the packing case step 2 Hoist the inverter to the installation position when necessary refer to 4 4 2 Hoisting Transport If the insta...

Страница 32: ...22 E En nd d 4 Mechanical Mounting User Manual...

Страница 33: ...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 perfo...

Страница 34: ...unication wiring C AC wiring terminal AC Used for AC output cable connection D Standby grounding terminal Used for internal grounding E Tracker terminal Tracker Used for internal Tracker Tracker power...

Страница 35: ...Ty yp pe e S Sp pe ec ciif fiic ca at tiio on n C Ca ab blle e D Diia am me et te er r m mm m C Cr ro os ss s s se ec ct tiio on na all A Ar re ea a m mm m2 2 1 DC cable PV cable complying with 1 500V...

Страница 36: ...able 20 50 L1 L2 L3 wire 50 150 PE cable 10 14 PE wire refer to table 5 2 PE Wire Requirements Four single core outdoor copper or aluminum cables 1 2 10 14 L1 L2 L3 wire 50 150 PE wire refer to table...

Страница 37: ...e PE wire produces a conductance equivalent to that of the wire specified in the table table 5 3 Power Cable for Tracking System C Ca ab blle e T Ty yp pe e S Sp pe ec ciif fiic ca at tiio on n C Ca a...

Страница 38: ...rect contact between the copper bar and the aluminium cable f fiig gu ur re e 5 5 3 3 Aluminium cable terminal connection sequence 1 Aluminium adapter terminal 2 Flange nut 3 Aluminium cable Ensure th...

Страница 39: ...onal Grounding Requirements All non current carrying metal parts and device enclosures in the PV power system should be grounded for example mounts of PV modules and the inverter enclosure When there...

Страница 40: ...od de ell R Re ec co om mm me en nd de ed d r ra at te ed d v vo ollt ta ag ge e R Re ec co om mm me en nd de ed d r ra at te ed d c cu ur rr re en nt t SG125HX 800V 125A Never connect a load between...

Страница 41: ...d never 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...

Страница 42: ...W Wiir re e Specification M10 5 6 3 Connection Procedure High voltage may be present in inverter Ensure all cables are voltage free before electrical connection Do not connect the AC circuit breaker u...

Страница 43: ...p 4 Loosen the swivel nut of the AC waterproof connector and select a seal according to the cable outer diameter remove the inner sealing ring if the cable diameter is larger than 40mm Lead the cable...

Страница 44: ...p 6 Open the protection cover step 7 Strip the protection layer and insulation layer by specific length as described in the figure below step 8 Make the cable and crimp OT DT terminal step 9 Secure th...

Страница 45: ...35 Ensure that the depth L of the socket used is not less than 28mm User Manual 5 Electrical Connection...

Страница 46: ...t should be inserted into the cabinet through the standby grounding terminal step 10Close the protection cover step 11Close the wiring compartment and tighten the two screws on its front cover with su...

Страница 47: ...ng design composed with PV modules from rooftoops of different orientation may not damage inverter but will cause system bad performance 5 7 1 PV Input Configuration As shown in the figure below the i...

Страница 48: ...mbling the PV Connectors High voltage may be present in the inverter Ensure all cables are voltage free before performing electrical operations Do not connect the AC circuit breaker before finishing e...

Страница 49: ...naps into place Gently pull the cable backward to ensure firm connection Tighten the cable gland and the insulator torque 2 5 N m to 3 N m step 4 Check for polarity correctness If the PV polarity is r...

Страница 50: ...or polarity correctness and ensure that the open circuit voltage in any case does not exceed the inverter input limit of 1 500V step 3 Connect the PV connectors to corresponding terminals until there...

Страница 51: ...ap If the DC input is connected inversely and the DC switch has been rotated to ON do not operate immediately Otherwise the equipment may be damaged Please turn the DC switch to OFF and romove the DC...

Страница 52: ...er communication board mainly includes DI DO interface 5 10 RS485 Connection 5 10 1 Interface Description As shown in the Figure below the inverter is equipped with three RS485 communication interface...

Страница 53: ...0 2 RS485 Communication System SG Modbus can be adopted 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 cab...

Страница 54: ...ped with a RS485 dip switch SW1 and the shielding layer of the communication cable should be single point grounded f fiig gu ur re e 5 5 7 7 Configuration of Dip Switch N 15 The length of the RS485 ca...

Страница 55: ...ove the communication junction box see 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...

Страница 56: ...inue to perform the following steps step 7 Install the junction box see 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 10...

Страница 57: ...5 connector with a crimping 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...

Страница 58: ...lay and maintain the special communication cables The RS 485 port of the COM100A supports the transparent transmission of the MODBUS RTU and is completely compatible with the monitoring devices and s...

Страница 59: ...t f fiig gu ur re e 5 5 8 8 Normal open contact f fiig gu ur re e 5 5 9 9 Normal close contact Devices connected to the relay should comply with related requirements A AC C S Siid de e R Re eq qu uiir...

Страница 60: ...al block described in chapter 5 10 3 Connection Procedure Terminal Block 5 13 Communication Module Connection optional Connect the communication module produced by SUNGROW such as Eye M4 WiFi to the c...

Страница 61: ...cation are not available at the same time Otherwise communication failure or other problems can be caused For details on module installation and configuration refer to the manual delivered together wi...

Страница 62: ...tom of the inverter are properly sealed Warning signs labels are intact and legible 6 2 Commissioning Procedure If all of the items mentioned above meet the requirements proceed as follows to start up...

Страница 63: ...e 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 the related manuals in the delivery scope...

Страница 64: ...between The Bluetooth function of the mobile phone is enabled 7 4 2 Login Procedure step 1 Open the App to enter the login page click on Local Access at the bottom of the page to go to the next page s...

Страница 65: ...curity 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 not initialized you wi...

Страница 66: ...mark whose grid code complies with EN50549 select the parameter EN50549_1 LV grid connection or EN50549_2 MV grid connection In the Brazilian region set the country code as Brazil Selecting Brazil_230...

Страница 67: ...PID State 4 Power flow chart Displays the PV power generation power feed in power etc The line with an arrow indicates energy flow between connected devices and the arrow pointing indicates energy flo...

Страница 68: ...ter runs according to the scheduling instructions received from the monitoring background Fault If a fault occurs the inverter will automatically stop operation and disconnect the AC relay The fault i...

Страница 69: ...on 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 vol...

Страница 70: ...re e 7 7 6 6 Records F Fa au ullt t A Alla ar rm m R Re ec co or rd d Tap F Fa au ullt t A Alla ar rm m R Re ec co or rd d to enter the screen as shown in the following figure f fiig gu ur re e 7 7 7...

Страница 71: ...f forms including daily power generation graph monthly power generation histogram annual power generation histogram and total power generation histogram table 7 5 Explanation of Power Yields Records P...

Страница 72: ...nt t R Re ec co or rd d Tap E Ev ve en nt t R Re ec co or rd d to view event record list Click to select a time segment and view corresponding records The inverter can at most record the latest 400 e...

Страница 73: ...mat 7 8 2 Operation Parameters R Ru un nn niin ng g T Tiim me e Tap S Se et tt tiin ng gs s O Op pe er ra at tiio on n P Pa ar ra am me et te er rs s R Ru un nn niin ng g T Tiim me e to enter the corr...

Страница 74: ...arm via this parameter PID Scheme Apply negative or positive voltage A AF FC CI I P Pa ar ra am me et te er rs s O Op pt tiio on na all Tap S Se et tt tiin ng gs s O Op pe er ra at tiio on n P Pa ar r...

Страница 75: ...soft start takes to raise the power from 0 to 100 rated power 1s 1200s Active power gradient control Switch for enabling disabling the active power rate settable function Enable Disable Active power d...

Страница 76: ...rs s R Re ea ac ct tiiv ve e P Po ow we er r R Re eg gu ulla at tiio on n to enter the screen as shown in the following figure f fiig gu ur re e 7 7 1 16 6 Reactive Power Regulation table 7 8 Reactive...

Страница 77: ...ve in percentage 20 0 100 0 QP_P3 Output power at P3 on the Q P mode curve in percentage 20 0 100 0 QP_K1 Power factor at P1 on the Q P mode curve Curve A Curve C 0 800 1 000 Curve B 0 600 0 600 Activ...

Страница 78: ...e U2 that is reactive according to the grid voltage 80 0 100 0 QU_Q2 Pre set proportion of reactive power according to the grid voltage U2 60 0 60 0 Overload Rate 1000 QU_V3 Pre set grid voltage U3 th...

Страница 79: ...Tap S Se et tt tiin ng gs s C Co om mm mu un niic ca at tiio on n P Pa ar ra am me et te er rs s to enter the corresponding screen as shown in the following figure The device address ranges from 1 to...

Страница 80: ...e package f fiig gu ur re e 7 7 2 21 1 Downloading Firmware Package step 4 Login the App via local access mode Refer to 7 4 Login step 5 Tab M Mo or re e on the App home screen and then tab F Fiir rm...

Страница 81: ...y y P Pa as ss sw wo or rd d to enter the modify password screen as shown in the following figure f fiig gu ur re e 7 7 2 23 3 Change Password The password shall consisit of 8 20 digits including lett...

Страница 82: ...o remove the DC connector step 6 Ensure that the AC wiring terminals are voltage free via a multimeter and remove the AC wires and communication wires step 7 Install the H4 PLUS waterproof plugs For f...

Страница 83: ...ome parts and devices of the inverter such as the capacitors may cause environmental pollution Do not dispose of the product together with household waste but in accordance with the disposal regulatio...

Страница 84: ...o 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 is higher than the set value 2 Check whether th...

Страница 85: ...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...

Страница 86: ...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 fault occ...

Страница 87: ...ompany 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...

Страница 88: ...ble range of the local power company modify the grid voltage imbalance parameter through the App 3 If the fault is not caused by the foregoing reasons and still exists contact SUNGROW 019 020 Device a...

Страница 89: ...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 conta...

Страница 90: ...fault still exists contact SUNGROW 047 PV input configuration abnormal PV input mode error Stop and disconnect the inverter Reset the input mode of the PV array 048 050 053 056 059 060 Device anomaly...

Страница 91: ...check whether there are any foreign materials or other environmental abnormities and take corresponding corrective measures when necessary 3 If the alarm occurs repeatedly please contact Sungrow Serv...

Страница 92: ...connected 2 Check whether the insulation between the ground cable and the live wire is normal 3 If the fault is not caused by the foregoing reasons and still exists contact SUNGROW 116 117 Device anom...

Страница 93: ...fault still exists please contact SUNGROW 448 471 String x reverse connection fault 1 Check whether the corresponding string is of reverse polarity If so disconnect the DC switch and adjust the polar...

Страница 94: ...ding string is of reverse polarity If so disconnect the DC switch and adjust the polarity when the irradiance is low and the string current drops below 0 5A 2 If the fault is not caused by the foregoi...

Страница 95: ...ns away A temporary warning sign or barrier must be posted to keep non related persons away while performing electrical connection and service work Restart the inverter only after removing the fault t...

Страница 96: ...s generated when the inverter is working In order to maintain good ventilation please check to make sure the air inlet and outlet are not blocked Clean the air inlet and outlet with soft brush or vacu...

Страница 97: ...oosen the screw on the fan holder step 4 Pull out the fan module clean the fans with soft brush or vacuum cleaner and replace them when necessary step 5 Reinstall the fan back to the inverter in rever...

Страница 98: ...V input current per MPPT 30 A Max DC short circuit current per MPPT 50 A O Ou ut tp pu ut t A AC C AC output power 125 kVA 40 113 6 kVA 50 Max AC output current 90 2 A Nominal AC voltage 3 PE 800 V AC...

Страница 99: ...ght power consumption 7 W Operating ambient temperature range 30 to 60 Allowable relative humidity range non condensing 0 100 Cooling method Smart forced air cooling Max operating altitude 5000 m 4000...

Страница 100: ...rt te er r M Ma ax xiim mu um m w wiir riin ng g d diis st ta an nc ce e u un niit t m m 1 16 6A AW WG G 1 1 3 31 1m mm m2 2 1 17 7A AW WG G 1 1 0 02 26 6m mm m2 2 1 13030 10552 2 6515 5276 3 4343 35...

Страница 101: ...to repair the faulty device E Ex xc cllu us siio on n o of f L Liia ab biilliit ty y In the following circumstances SUNGROW has the right to refuse to honor the quality guarantee The free warranty per...

Страница 102: ...er rlla an nd d Sungrow Deutschland GmbH Munich 49 0800 4327 9289 service sungrow emea com G Gr re ee ec ce e Service Partner Survey Digital 30 2391052757 service sungrow emea com I In nd diia a Sung...

Страница 103: ...row emea com U UK K Sungrow Power UK Ltd Milton Keynes 44 0 01908 414127 service sungrow emea com U U S S A A M Me ex xiic co o Sungrow USA Corporation Phoenix 1 833 747 6937 techsupport sungrow na co...

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