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User Manual

6 Electrical Connection

45

ON

OFF

Backup Ctrl

2.

Check the cable connection of the PV string for polarity correctness and
ensure that the open circuit voltage in any case does not exceed the
inverter input limit of 600 V.

480.0

+

-

Check the positive and negative polarity of the PV strings, and
connect the PV connectors to corresponding terminals only after
ensuring polarity correctness.

Electric arc or contactor over temperature may occur if the PV
connectors are not firmly in place, and SUNGROW shall not be held
liable for any damage caused due to this operation.

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Summary of Contents for SH5K-20

Page 1: ...User Manual 1 Phase Hybrid Inverter SH5K 20 SH5K 20 UEN Ver19 202007 WWW SUNGROWPOWER COM ...

Page 2: ......

Page 3: ...d in this document 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 means It is prohibited to perform reverse engineering cracking or any other operations that compromise the original program design of the software developed by SUNGROW Sungrow Power Supply Co ...

Page 4: ...ther related documents before any work on the inverter is carried out Documents must be stored carefully and be available at all times All rights to the content of this manual are owned by Sungrow Power Supply Co Ltd hereinafter SUNGROW No part of this document can be modified distributed reproduced or published in any form or by any means without prior written permission from SUNGROW Content may ...

Page 5: ...at if not 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 that may be helpful e g to help you solve problems or save time ...

Page 6: ...Retrofitting the Existing PV System 14 3 Function Description 15 3 1 Safety Function 15 3 1 1 Protection 15 3 1 2 Earth Fault Alarm 15 3 2 Energy Conversion and Management 15 3 2 1 Power Derating 16 3 2 2 External Demand Response 17 3 2 3 Reactive Power Regulation 18 3 2 4 Active Power Response 18 3 2 5 Load Control 19 3 3 Battery Management 19 3 3 2 Charge Management 20 3 3 3 Discharge Management...

Page 7: ...ls 29 5 4 Moving the Inverter 31 5 5 Installing the Inverter 31 5 6 Installing the Energy Meter 33 6 Electrical Connection 34 6 1 Safety Instructions 34 6 2 Terminal Description 35 6 3 Additional Grounding Connection 37 6 3 1 Additional Grounding Requirements 37 6 3 2 Connection Procedure 37 6 4 AC Cable Connection 39 6 4 1 AC Side Requirements 39 6 4 2 Assembling the AC Connector 39 6 4 3 Install...

Page 8: ...Powering on the System 61 7 4 LCD Initial Settings 62 7 5 Result Verification 66 8 System Decommissioning 67 8 1 Decommissioning the Inverter 67 8 1 1 Disconnecting the Inverter 67 8 1 2 Dismantling the Inverter 68 8 1 3 Disposing of the Inverter 68 8 2 Decommissioning the Battery 68 8 2 1 Disconnecting Li ion Battery 68 8 2 2 Disconnecting Lead acid Battery 69 9 Troubleshooting and Maintenance 70...

Page 9: ...ting Limit Power Ramp 81 10 4 11 Setting Load Control 81 10 4 12 Setting the Communication Parameters 83 10 4 13 Testing Earth Fault 84 10 4 14 DRM Switch Setting 84 10 4 15 PT1000 Switch Setting 84 10 4 16 Factory Reset 84 10 5 Setting the Time 84 10 6 Setting the Country 85 10 7 Viewing the Error Codes 86 11 Appendix II Visiting and Configuring the Webserver 88 11 1 User and Authority 88 11 2 Ma...

Page 10: ... Power Response 95 12 3 1 Volt watt Response 95 12 3 2 Volt watt Response for Battery Charging 96 12 3 3 Frq Watt Response 98 13 Appendix IV Technical Data 100 13 1 Inverter 100 13 2 STB5K 20 backup box 102 13 3 Energy Meter 102 13 4 Quality Assurance 103 ...

Page 11: ... 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 Panels PV strings will produce electrical power when exposed to sunlight and can cause a lethal voltage and an electric shock Always keep in mind that the inverter is multiple power supplied Electrical ...

Page 12: ...cense Risk of inverter damage or personal injury Do not disconnecting PV connectors AC connector or battery connectors while the inverter is running De energize from all power sources Wait at least 10 minutes for the internal capacitors to discharge Ensure that there is no voltage or current before disconnecting any connectors All safety instructions warning labels and nameplate on the inverter Mu...

Page 13: ...touching any connectors Warning Label Label Description Disconnect the inverter from all the external power sources before maintenance Do not touch live parts for 10 minutes after disconnection from the power sources Burn danger due to hot surface that may exceed 60 C Danger to life due to high voltages Only qualified personnel can open and maintain the inverter Read the user manual before mainten...

Page 14: ...he explosive hydrogen gas that the batteries release Due to the dangers of hydrogen gas and battery electrolyte locate batteries in a designated area complying with the local regulations protect the enclosure against destruction do not open or deform the battery whenever working on the battery wear suitable personal protective equipment PPE such as rubber gloves rubber boots and goggles rinse acid...

Page 15: ...tallations must be performed by qualified personnel who should have Training for installation 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 ...

Page 16: ... in this chapter is not permitted SH5K 20 is a single phase hybrid inverter applicable to both on grid and off grid PV systems With the integrated Energy Management System EMS they can control and optimize the energy flow so as to increase the self consumption of the system 2 1 Product Introduction 2 1 1 Inverter Model Description The inverter model description is as follows SH 5K Code of power le...

Page 17: ...xx xxxxxxxxx xxxxxxxxx xxxxxxxxx xxxxxxxxx xxxxxxxxx xxxxxxxxx xxxxxx xxxxxx Fig 2 1 Inverter Appearance No Name Description 1 AC Grid AC terminal for the connection to the utility grid 2 Backup Ctrl Two holes for the control cable and DI cable of the backup box STB5K 20 3 PV connection PV1 PV1 PV2 and PV2 4 DC switch optional To safely disconnect the DC circuit 5 Wi Fi terminal To connect the Wi ...

Page 18: ... Green and red can be indicated via the indicator from which user can know the current status For detailed definition see Tab 7 5 3 Buttons User can operate the LCD menu via the four buttons For detailed functions see Tab 7 1 2 1 2 Energy Meter The Energy Meter is installed next to the main switch to detect the electrical measured values at the grid connected point It communicates with the inverte...

Page 19: ... Meter and the three phase Energy Meter are alternative in the delivery The meter figures in this document have been created for the single phase Energy Meter unless otherwise specified For details about the Energy Meter please refer to the Quick Installation Guide for it 2 2 On grid System By directly connecting a battery module to the inverter the conventional PV system can be upgraded to be an ...

Page 20: ...onsume energy F Battery optional A Li ion battery or a lead acid battery For the TT utility grid the N line voltage to ground must be 30 V or less Energy Management during Daytime The energy management system EMS works in self consumption mode by default Scenario 1 PV power generation Load power consumption First PV power will go to emergency loads first then loads and the battery Moreover If the ...

Page 21: ...there is not enough power from the battery system the grid shall supply the power first to emergency loads then loads Night During night with energy available the battery will discharge to supply power for loads Alternatively the grid will supply power for the loads in case the discharge power of the battery is insufficient Night empty battery During night when the battery is empty it will enter i...

Page 22: ...arantee backup power in all circumstances In an energy storage system with multiple hybrid inverters in parallel the hybrid inverters cannot work in EPS mode The system is capable of operating off grid to ensure an emergency power supply for protected loads in the event of a grid interruption or blackout which may be caused by islanding under voltage or over voltage under frequency or over frequen...

Page 23: ...ver some external factors may cause the system to fail on Back Up mode Therefore the users must be aware of conditions and follow the instructions as below Do not connect loads that are dependent on a stable energy supply for a reliable operation Do not connect the loads whose total capacity is greater than the maximum Back Up capacity Do not connect the loads that may cause very high start up cur...

Page 24: ...tion of the new system will be greatly improved STB5K 20 SH5K 20 PV inverter Emergency appliance SBP4K8 Home appliance Fig 2 8 Retrofitting the Existing PV System Just connect the STB5K 20 to provide the backup function for off grid application The existing PV inverter provides power to the PV ESS as the power flow shown on the main screen Refer to 10 4 3 Adding the Existing System to set the rate...

Page 25: ...ommended cross section of the DO cable is 1 mm2 If an earth fault occurs the DO2 dry contact will switch on automatically to signal the external alarm the buzzer inside the inverter will also beep and the Ethernet communication port can be used for for transmitting the alarm remotely 3 2 Energy Conversion and Management The inverter converts the DC power from the PV array or the battery to the AC ...

Page 26: ...e remote scheduling instructions and the inverter operates with the power derating Over temperature Derating A high ambient temperature or poor ventilation will lead to a power derating of the inverter When the internal temperature or module temperature exceeds the upper limit the inverter will reduce the power output until the temperature drops within the permissible range Grid Under voltage Dera...

Page 27: ...ll reduce the output power within a specified range The following figure shows the power factor derating curve Pn 0 8Pn 0 8 1 Power factor PF derating Fig 3 2 Power Factor Derating 3 2 2 External Demand Response The inverter provides a terminal block for connecting to a demand response enabling device DRED The DRED asserts demand response modes DRMs The inverter detects and initiates a response to...

Page 28: ...t a time The following shows the priority order in response to multiple DRMs Multiple Modes Priority Order DRM1 DRM4 DRM1 DRM2 DRM3 DRM4 DRM5 DRM8 DRM5 DRM6 DRM7 DRM8 3 2 3 Reactive Power Regulation The inverter is capable of operating in reactive power regulation modes for the purpose of providing support to the grid These various operating modes can be enabled or disabled via the LCD menu For de...

Page 29: ...n for the cable connection User may set the control mode according to individual demand Refer to 10 4 10 Setting Load Control for LCD settings Timer Set the starting time and end time The DO function will be enabled during the interval ON OFF The DO function can be enabled if ON or disabled if OFF Optimized Set the starting time end time and the optimized power During the interval when the export ...

Page 30: ...OC 15 15 95 by default SOC 95 Pylon US2000B TAWAKI 30 V SOC 20 20 100 by default SOC 100 BYD 30 V SOC 10 10 100 by default SOC 100 Other lead acid 30 V Configured by the customer The SOC limits of Li ion batteries except Sungrow batteries can be modified via the Webserver For details about the Webserver see 11 Appendix II Visiting and Configuring the Webserver 3 3 2 Charge Management Emergency Cha...

Page 31: ... new system Triggered by BMS Triggered by BMS Sungrow retrofitting system SOC 2 SOC 4 LG SOC 2 SOC 4 GCL SOC 12 SOC 14 Pylon US2000B SOC 17 SOC 19 TAWAKI SOC 15 SOC 17 BYD SOC 7 SOC 9 Tab 3 5 Emergency Charge Management for Lead acid Battery Status Conditions Trigger The battery voltage is under the lower limit 42 V by default Finish The battery voltage rises to the final discharge voltage Normal ...

Page 32: ...minal power If the PV voltage is higher than the upper limit value of MPP voltage 560 V the battery cannot discharge The hybrid system will start to discharge the battery when the import power value exceeds a pre defined threshold value of 70 W 3 3 4 Maintenance Management To maximize the lead acid battery life the inverter will maintain the lead acid battery every six months no matter whether the...

Page 33: ... 25 C to 60 C with a sampling accuracy of 2 C The protective temperature of lead acid battery ranges from 25 C to 60 C and the values could be set on the LCD or the Webserver The temperature sampling function of the sensor PT1000 for lead acid batteries is disabled by default Refer to 10 4 14 PT1000 Switch Setting to enable the function via LCD menu 3 4 Communication and Configuration The inverter...

Page 34: ...iving the device 1 Check the packing case for any visible damage 2 Check the scope of delivery for completeness according to the packing list 3 Check the inner contents for damage after unpacking Contact SUNGROW or the supplier in case of any damage or incompleteness Do not dispose of the original packing case It is recommended to store the inverter in it 750 6 0 0 265 Fig 4 1 Single Inverter in O...

Page 35: ...minals b M5 screws and washers Copper bar or Three phase meter c Wi Fi module d L Documents e Fig 4 2 Delivery Contents a Each set includes a self tapping screw a spring washer a fender washer and an expansion tube b If user purchases the three phase Energy Meter it will be delivered separately c The power supply cable is only delivered for the single phase Energy Meter d One is for external groun...

Page 36: ...mperature should be always between 30 C and 85 C and the storage relative humidity should be always between 0 and 100 In case of stacking storage the number of stacking layers should never exceed the limit marked on the outer side of the packing case 5 layers for SH5K 20 The packaging must be upright If the inverter has been stored more than half a year the qualified personnel should thoroughly ch...

Page 37: ...g 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 heat dissipation performance Wear gloves to avoid scratches when mounting the inverter 5 2 Location Requirements Select an optimal mounting location for safe operation long service life and expected performance The inve...

Page 38: ...in 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 daily life 5 2 2 Carrier Requirements The installation carrier should meet the following requirements Made of non flammable materials Max load bearing capacity 4 times of inverter weight 5 2 3 Installation Angle Requirement...

Page 39: ...ensure sufficient space for heat dissipation 300mm 300mm 300mm 300mm 5 3 Installation Tools Installation tools include but are not limited to the following recommended ones If necessary use other auxiliary tools on site General tools recommended Marker Measuring tape Level Utility knife Multimeter Measurement range 1100Vdc 880 0 Wrist strap ...

Page 40: ...lated shoes Vacuum cleaner Heat shrink tubing Installation tools recommended Heat gun Hammer drill Drill bit Φ10 Rubber mallet Electric screwdriver Tool bit M5 Phillips screwdriver Specification M5 Wire stripper Hydraulic plier Crimping tool Crimping range 2 5 6mm Wrench for MC4 terminal ...

Page 41: ...tions below as you move the inverter Always be aware of the weight of the inverter Lift the inverter using the handles positioned on both sides of the inverter Move the inverter by at least two people or by using a proper transport tool Do not release the equipment unless it has been firmly secured 5 5 Installing the Inverter Inverter is installed on the wall by means of wall mounting bracket and ...

Page 42: ... 0 N m Note that the depth of the holes should be about 70 mm Be sure to adhere to the screw assembly sequence self tapping screw spring washer fender washer and bracket 240 D10 Mark the positions Drill holes Place expansion tubes Secure the bracket mm 2 Mount the inverter to the bracket 3 Secure the inverter with two M5 screws and washers 3 0 N m 3 0 N m ...

Page 43: ...g the Energy Meter The Energy Meter should be installed between the grid and the load It supports a 35 mm DIN rail installation as shown in the following figure Single phase Energy Meter Three phase Energy Meter Fig 5 1 Installing the Meter to the Rail ...

Page 44: ...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 perform cable connection All cables must be undamaged firmly attached properly insulated and adequately dimensioned Comply with the safety instructions related to the PV strings and the regulations related to the util...

Page 45: ... Ctrl Two holes for the control cable and DI cable of the backup box STB5K 20 DVC A PV1 PV1 PV2 PV2 Positive and negative DC input connectors DVC C ON OFF DC switch Not applicable Com Connectors for Ethernet RS485 PT1000 CAN DO and DRM DVC A Wi Fi Connector for the WiFi module DVC A BAT BAT Connectors for the battery power cables DVC C Unscrew four screws and remove the enclosure lid Retain the sc...

Page 46: ...m DVC A 2 Copper PV for parallel mode Phillips screwdriver DVC C 3 Ethernet Communication DVC A 4 DRM Demand response enabling device DRED Flat head screwdriver with an open end of 2 mm DVC A 5 DI Backup box STB5K 20 6 RS485 A1 B1 reserved A2 B2 for the meter 7 120 Ohm RS485 Not applicable 8 BAT_Temp Temperature sensor PT1000 Flat head screwdriver with an open end of 3 mm DVC A 9 BAT_Com CANH CANL...

Page 47: ...e two terminals are both grounded reliably 6 3 1 Additional Grounding Requirements All non current carrying metal parts and device enclosures in the PV power system should be grounded for example brackets of PV modules and inverter enclosure The additional grounding terminal is equipped at the side of the inverter Be sure to connect this additional grounding terminal to the PE bar for reliable gro...

Page 48: ...wdriver A B C Item Description Specification A Cable socket Not included in the delivery scope B Screw M5 12 mm 3 0 N m C Grounding cable The second PE conductor should be of the same cross sectional area as the original PE conductor in the AC connector The cable is not included in the delivery scope 3 Apply paint to the grounding terminal to ensure corrosion resistance ...

Page 49: ...rent of 300 mA recommended or it can be set to other values according to local regulations For example in Australia the inverter can use an additional 30 mA type A RCD in installations Cable Requirements Cross section 4 mm cable diameter 11 mm to 14 mm All the AC cables should be equipped with correctly colored cables for distinguishing Please refer to related standards about the wiring color 6 4 ...

Page 50: ...ge to the inverter may follow 4 Assemble the housing the terminal block and cable gland torque 4 N m to 5 N m Make sure that the rib of the terminal block and the groove on the housing engage perfectly until a Click is heard or felt Click Cable gland Housing Terminal block 6 4 3 Installing the AC Connector 1 Install an AC circuit breaker recommended specification 32 A at the AC output of the inver...

Page 51: ... cables are firmly installed via the right torque tool or dragging the cables slightly 6 5 DC Cable Connection Electric shock The PV array will generate lethal high voltage once exposed to sunlight Make sure the PV array is well insulated to ground before connecting it to the inverter 6 5 1 PV Input Configuration Independent Mode The two PV inputs work independently each with its own MPPT The two ...

Page 52: ... for Each Input Max current for input connector DC1 5600 W 6500 W 600 V 12 A DC2 Parallel Mode Both PV strings should have the same type the same number of PV panels identical tilt and identical orientation Two trackers are configured in parallel to handle power and or current levels higher than those a single tracker can handle PV input 1 PV input 2 MPPT Inverter inside Prior to connecting the in...

Page 53: ...the scope of delivery To ensure IP65 protection use only the supplied connector or the connector with the same ingress of protection The PV cables must be multi core cables The requirements of PV cables are as follows Cross Sectional area Cable Diameter Max Withstand Voltage Max Withstand Current 4 mm2 6 mm2 AWG12 AWG10 6 mm 9 mm 600 V Same as short circuit current High voltage may be present in t...

Page 54: ...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 3 N m Crimp Contact Positive Insulator Cable Gland Crimp Contact Negative Insulator Cable Gland 4 Check for polarity correctness The inverter will not function properly if any PV polarity is reversed 6 5 3 Installing the PV Connector 1 Optio...

Page 55: ... not exceed the inverter input limit of 600 V 480 0 Check the positive and negative polarity of the PV strings and connect the PV connectors to corresponding terminals only after ensuring polarity correctness Electric arc or contactor over temperature may occur if the PV connectors are not firmly in place and SUNGROW shall not be held liable for any damage caused due to this operation ...

Page 56: ...ollowing figure Backup Ctrl Fig 6 4 Communication Ports and Terminal Ethernet function Through the Modbus TCP IP protocol the EMS or the Control Box from the third party can fully control the on off derating charging and discharging of the inverter The inverter operation information can be transferred via Ethernet port Visit the Webserver and you can view the information The inverter operation inf...

Page 57: ... Explorer Fig 6 5 Ethernet Connection without a Router The following figure shows how the Ethernet connection may work with a router Router Switch Inverter Internet iSolarCloud App Local access Remote iSolarCloud server iSolarCloud Webserver Explorer Fig 6 6 Ethernet Connection with a Router Cable Requirements Use a TIA EIA 568B standard network cable with a diameter of 3 mm 5 3 mm Refer to the sw...

Page 58: ...Pins Pin 1 White orange Pin 2 Orange Pin 3 White green Pin 4 Blue Pin 5 White blue Pin 6 Green Pin 7 White brown Pin 8 Brown RJ45 Port RJ45 plug 1 8 4 Install the RJ45 plug to the Ethernet port 5 Fasten the swivel nut with a torque of 1 N m 2 N m and connect the other end to the socket of the switch or the router Ethernet 6 6 3 WiFi Connection 1 Unscrew the waterproof lid from the Wi Fi terminal 2...

Page 59: ...to the main switch This section mainly describes the cable connections on the inverter side Refer to the quick guide delivered with the SUNGROW meter for the connections on the meter side Sungrow meter Home Appliance PV strings A Meter link Network meter Main switch Utility grid Solar switch SH5K 20 Proceed as follows to connect the RS485 wires to the inverter 1 Unscrew the swivel nut from any Com...

Page 60: ...ter 4 When the length of RS485 cable is longer than 100 m push the 120 Ohm 2 switch to ON to ensure stable communication as shown below 6 8 Battery Connection This section mainly describes the cable connections on the inverter side Refer to the instructions supplied by the battery manufacturer for the connections on the battery side Only use properly insulated tools to prevent accidental electric ...

Page 61: ...on voltage rating not less than 100 V and current rating not less than 100 A should be installed between the inverter and the battery Cable Requirements Cross section 16 mm2 25 mm2 OT25 6 cable diameter 13 mm 16 mm Procedure 1 Remove the battery cable jacket 15 mm 2 Crimp the OT terminal and install the heat shrinkable casing as shown below 3 Unscrew the swivel nut from the BAT and BAT ports 4 Lea...

Page 62: ...asher fender washer OT terminal 7 Fasten the swivel nut with a torque of 5 N m 6 N m and connect the other end to the battery 6 8 2 Connecting the CAN Cable The CAN cable enables the communication between the inverter and the Li ion battery from LG Sungrow GCL Pylon US2000B BYD or TAWAKI Procedure 1 Take out the CAN cable terminal marks CANH and CANL from the packaging 2 Unscrew the swivel nut fro...

Page 63: ...l nut with a torque of 1 N m 2 N m and connect the other end to the battery 6 8 3 Connecting the Temperature Sensor When the system is equipped with a lead acid battery it is recommended to connect the PT1000 temperature sensor to the inverter This is to sample the battery temperature or the external environment temperature of the battery Cable Requirements Cross section 1 0 mm cable diameter 3 mm...

Page 64: ...th a torque of 1 N m 2 N m and place the temperature sensor next to the lead acid battery 6 9 STB5K 20 Connection EPS The backup box is installed between the SUNGROW meter and the hybrid inverter SH5K 20 If the backup box is installed you should enable the EPS function and set the reserved capacity for Li ion batteries via the LCD For details see 10 4 2 Setting the EPS Function Sungrow meter Home ...

Page 65: ...he backup box STB5K 20 The neutral lines for the grid the EPS and the inverter AC terminals are all inter connected inside the STB5K 20 And it is the same for the PE lines Connect terminals L1 N1 and PE to the grid and connect terminals L4 N4 and PE to the AC connector and then to the AC terminal on the SH5K 20 Cross section 4 mm cable diameter 11 mm 14 mm Grid EPS Load SH5K 20 AC 3 PE L N 10 mm 1...

Page 66: ...erminals C1 and C2 without tool tightening STB5K 20 SH5K C1 C2 A lethal voltage of 230 Vac is present between C1 and C2 terminals Power off the system before cable connection or disconnection Only use proper cables and insulated tools to prevent accidental electric shock 4 Plug the wires of the DI cable into terminals DI1 DI2 DI3 and VDD according to the marks without tool tightening as shown belo...

Page 67: ...tain condition Please choose the appropriate contactor according to the load power e g the contactor types of the 3TF30 series from SIEMENS 3TF30 01 0X DO2 Earth fault alarm In this case the additional equipment required is a light indicator and or a buzzer Relay Trigger condition Description Consumer load control The load control mode has been set via the LCD menu The relay is activated once the ...

Page 68: ...connect the load directly to the DO port The current of the DO dry contact should not be larger than 3 A The DO node is not controlled once the inverter is powered off Connect the AC contactor by the manual switch so as to control the loads Cable Requirements Cross section 1 0 mm cable diameter 3 mm 5 3 mm Procedure 1 Unscrew the swivel nut from any Com port 2 Lead the cable through the cable glan...

Page 69: ...0 mm 4 Plug the wires into DO terminals without tool tightening Note For reconnection press the part as shown in the red circle so as to pull out the cable DO1 COM1 NO1 DO2 COM2 NO2 5 Fasten the swivel nut with a torque of 1 N m 2 N m and connect the other end of the cable to the original edge of the AC contactor ...

Page 70: ...licable local standards 6 All unused terminals at the bottom of the inverter are properly sealed 7 Warning signs and labels are intact and legible 8 For EPS application check the cable connections of STB5K 20 Risk of inverter damage if the grid power wires are wrongly connected to the EPS LOAD terminals 7 2 Button Introduction The inverter offers four buttons for operation Please refer to the foll...

Page 71: ...ess to move to the desired item Press ENT to confirm Sub parameters to be set End Start No Yes modifying Yes selecting Fig 7 1 Button Operations 7 3 Powering on the System If all the items mentioned in section 7 1 are OK proceed as follows to start the inverter for the first time 1 Rotate the DC switch to ON The DC switch may be integrated in the inverter or installed by the customer 2 Connect the...

Page 72: ...e The values listed in the following table are for your reference only Please follow the requirements of local grid standard Tab 7 3 Parameters of Grid Standards in Australia Parameter Default AG EE EG PN PC WP Over voltage 1 Vmax V 260 0 260 0 260 0 260 0 260 0 260 0 260 0 1 Time s 2 0 1 80 1 80 1 80 1 80 1 80 1 80 2 Vmax V 265 0 265 0 265 0 265 0 265 0 265 0 265 0 2 Time s 0 20 0 20 0 20 0 20 0 ...

Page 73: ...id min 47 00Hz Fgrid max 52 00Hz Press ENT Press ENT The multiple stage parameters are as follows 1 Time 002 00s 1 Vmax 260 0V 2 Time 000 20s 2 Vmax 265 0V 1 Time 002 00s 1 Vmin 180 0V 2 Time 002 00s 2 Vmin 180 0V 1 Time 000 20s 1 Fmax 52 00Hz 2 Time 000 20s 2 Fmax 52 00Hz 1 Time 001 80s 1 Fmin 47 00Hz 2 Time 001 80s 2 Fmin 47 00Hz 2 Set the system time which is very important and directly affects...

Page 74: ...ve Power Regulation Reactive Power PF OFF Q u Q p Qt PF Setting PF 1 000 Laggingg Leading 5 Battery Usage Time Bat Usage Time Weekday Usage Weekend Usage Weekend Usage Disable Enable Start Time 1 End Time 1 00 00 24 00 Start Time 2 End Time 2 00 00 24 00 Press ENT Press ENT 6 EPS Setting The EPS function is disabled by default A prompt will appear If the backup box STB5K 20 is installed enable thi...

Page 75: ... a battery can store Refer to the manufacturer s specifications for details If the max charge or discharge is set to more than 65 A e g C 600 Ah 0 3C 180 A then the inverter will limit the charge and discharge current to 65 A Rated Vtg Capacity 048 0 V 0200 Ah Max Chrg Max DChrg 0 300 C 0 300 C If the battery voltage or temperature is beyond the allowable range the related error codes will be trig...

Page 76: ...Refer to Tab 10 1 for the explanations 11 Check the state of the LED indicator Tab 7 5 State Descriptions of the LED Indicator Color Status Description Green On The inverter is running normally Blinking The inverter is in the process of starting Off Other states except Running and Starting Refer to Tab 10 1 for state descriptions Red On Permanent fault or upgrade failure Blinking Other system faul...

Page 77: ... of the PV string inputs 4 Disconnect the DC circuit breaker between the battery and the inverter 5 Wait at least 10 minutes until the capacitors inside the inverter completely discharged 6 Ensure that the DC cable is current free via a current clamp 7 Insert a MC4 wrench into the notch and press the wrench with an appropriate force to remove the DC connector 2 1 8 Lay the tool in the location of ...

Page 78: ...d devices of the inverter such as the LCD display batteries capacitors may cause environment pollution Do not dispose of the product together with household waste but in accordance with the disposal regulations for electronic waste applicable at the installation site 8 2 Decommissioning the Battery Decommission the battery in the system after the inverter is decommissioned following the steps for ...

Page 79: ...Decommissioning 69 8 2 2 Disconnecting Lead acid Battery 1 Disconnect the DC switch between the battery and the inverter 2 Turn off the switch on the battery 3 Disconnect all the cables between the battery and the inverter ...

Page 80: ...t resolved 2 Perform troubleshooting according to the fault type on the LCD screen See 8 1 2 Troubleshooting of the Errors 3 If it cannot be resolved please contact SUNGROW 9 1 2 Troubleshooting of the Errors When faults occur the Fault state will be shown on the main screen Press to view all the fault information For the detailed troubleshooting see the chapter Troubleshooting of the Errors in th...

Page 81: ...y connector Keep non related persons 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 that impairs safety performance As the inverter contains no component parts that can be maintained never arbitrarily replace any internal components For any maintenanc...

Page 82: ...he cables especially the surface in contact with metal 6 months after commissioning and then once or twice a year 9 2 2 Replacing the Button Battery Disconnect the inverter from the grid first then the PV strings and the battery before any maintenance work Lethal voltage still exists in the inverter Please wait at least 10 minutes and then perform maintenance work There is a button battery on the ...

Page 83: ...nt system time Neither the grid power nor the load power will be displayed on the main screen in case of no SUNGROW meter installed If there is no button operation for 1 minute the LCD backlight is OFF 2 minutes system returns to the default menu main screen Tab 10 1 State Descriptions State Description Running After being energized the inverter tracks the PV strings maximum power point MPP and ru...

Page 84: ... in recovery time the inverter will automatically resume running The recovery time can be set on the Webserver Refer to Chapter 11 for the introductions Off grid The system is disconnected from utility grid and runs as a stand alone system If the device is in standby mode for more than 10 minutes please check Whether the insolation is sufficient and the PV connection is correct Whether the battery...

Page 85: ...r curve Daily energy Total energy Battery info Grid info PV info System info DRM info Device info Password 111 EPS Setting Forced Charge Active Power Existing Sys 1 3 4 Refer to 12 3 Active Power Response Refer to 12 2 Reactive Power Regulation Refer to 12 1 Demand Response Modes 2 Password 111 PT1000 Switch Factory Reset To enable disable the DRM function To enable disable the temperature samplin...

Page 86: ... 10 3 Starting and Stopping the Inverter Notice The Restart item will appear only if an unrecoverable fault occurs ON OFF OFF Restart ON Confirm your choice by pressing ENT Confirm ON Confirm OFF or or Confirm Restart When the DRM state is DRM0 the ON option will be prohibited The DRM0 state will prohibit the ON 10 4 Advanced Settings 10 4 1 Inputting Password The parameter settings are protected ...

Page 87: ...evel The reserved battery capacity will be supplied to the emergency loads in the off grid system EPS Setting Enable Disable Reserved Capacity EPS Setting 000 Must install an EPS box if the EPS function is enabled If the battery type is set to Other Battery it is not need to set the reserved capacity If the EPS function is enabled the buzzer inside the inverter will beep intermittently for 20 s wh...

Page 88: ...nged the other will synchronize the value 10 4 4 Setting the Battery Type For Li ion batteries the type can be automatically identified and set to Li ion on the LCD Manually set the type to Other Battery for lead acid batteries Proceed as follows to modify the settings Refer to 10 3 Starting and Stopping the Inverter to stop the inverter before modifying the battery type Battery Type Other Battery...

Page 89: ...The charging energy comes from the excess PV energy in priority to the energy from the grid The inverter will sink the charging power from the grid in the case of PV energy shortage Forced Charge Start time1 End time1 00 00 00 00 Target SOC 100 Forced Charge Start time2 End time2 00 00 00 00 Target SOC 100 3 3 2 3 10 4 7 Setting the Protective Parameters Protective parameters are designed for the ...

Page 90: ...n Over Vtg En Enable Tab 10 3 Recovery Parameter Explanations Parameter Explanation Default Range Vmax recover Recovery value for over voltage fault Inverter will start operating when the grid voltage falls below this value 253 0 V 230 0 V 299 0 V Vmin recover Recovery value for under voltage fault Inverter will start operating when the grid voltage is above this value 205 0 V 130 0 V 230 0 V Fmax...

Page 91: ... the grid connected point will change with a ramp but not suddenly Limit P Ramp Disable Enable 10 4 11 Setting Load Control After connecting the load to the DO terminals a relay control signal will be transmitted Users can flexibly set the control mode via the LCD menu Press to choose the control mode Press ENT to confirm Load Control Timer ON OFF Optimized 1 2 Timer Control In this mode set the S...

Page 92: ...zed 1 2 Grid Contactor OFF mode DO relay ON1 COM1 Inverter DO port Fig 10 3 DO Operation in ON OFF Control Optimized Control The system will control the load operation according to the power optimization algorithm of energy management During the setting interval the DO function will be enabled to power on the load if the excess PV energy exceeds the optimized power value Notice Load Control Timer ...

Page 93: ...Setting the Communication Parameters Ethernet The communication address ranges from 1 to 247 The IP sub net gateway DNS1 and DNS2 can be modified only when the DHCP is set to OFF Comm Param Ethernet Config WiFi Config Acquire the IP subnet mask gateway DNS1 and DNS2 from the network professional Set the Server to CLOUD if the data is uploaded to www isolarcloud com 192 168 100 002 Gateway Con Serv...

Page 94: ...mperature sampling function of the sensor PT1000 for lead acid batteries is disabled by default Set to Enable to turn on the function PT1000 Switch Enable Disable 10 4 16 Factory Reset All history information will be irrecoverably cleared and all parameters will return to the default values except the protection parameters and time once the Factory Reset is performed Firstly set the inverter to OF...

Page 95: ... of the country codes Country Code Full Name Language GB Great Britain English DE Germany German FR France French IT Italy Italian ES Spain English AT Austria German AU Australia English CZ Czech English BE Belgium French DK Denmark English GR_L Greece Land English GR_IS Greece Island English NL Netherlands Dutch LUX Luxembourg Dutch PT Portugal English CN China Chinese SE Sweden English US Americ...

Page 96: ... under frequency 1 F 45 00 Hz 50 00 Hz 1 Time Grid under frequency 1 F tripping time 0 600 s 2 Fmin Grid under frequency 2 F 45 00 Hz 50 00 Hz 2 Time Grid under frequency 2 F tripping time 0 600 s 10 7 Viewing the Error Codes Viewing Active Error For the icon or the Error state on the main screen press to view the current faults Refer to section 5 2 in the SH5K 20 quick user manual for error descr...

Page 97: ...ual 10 Appendix I LCD Operation 87 Viewing Error Record Press to turn pages and view all error records 1 the error is triggered 0 the error is cleared Error Record 18022708 55 27 010 0 P1 1 18022707 11 21 501 1 ...

Page 98: ...r modification with installer permission This action will void any warranty rights Only one person can login to the Webserver at a time Log out in time if you finish the visit Wait until 4s later to log in again Follow the steps to login 1 Query the inverter IP address according to the instructions in 10 4 11 Setting the Communication Parameters 2 Open the browser Input the inverter s IP address a...

Page 99: ...n installer s permission 11 2 Main Interface Fig 11 1 Webserver Main Interface 11 3 Navigation Introduction Operating Information Parameters Settings Error Records Running Records History Records Energy Management Event Records Summary Information Detailed Information Protection Parameters System Parameters Operating Parameters Battery Parameters Communication Parameters Webserver Fig 11 2 Webserv...

Page 100: ... The Serial Number SN of the running inverter is shown on the upper left corner History records 10 records in each page 100 records at most Abbreviations Abbreviation Complete Abbreviation Complete Vtg Voltage Ter Vtg Terminated voltage Tmp Temperature Curr Current Chrg Charge Ter Curr Terminated current Dischrg Discharge SOC State of Charge Bat Battery Max Maximum Emergcy Emergency Min Minimum ...

Page 101: ...rter has integrated a terminal block for connecting to a DRED After the connection the DRED assert DRMs by shorting together terminals as specified in Tab 12 1 DRM terminals The modes from DRM0 to DRM8 are supported by the inverter and the information is marked on the label located near the DRM terminals Tab 12 1 Method of Asserting DRMs Mode Asserted by Shorting Terminals DRM0 RefGen or Com DRM0 ...

Page 102: ... mm 4 Plug the wires into the corresponding terminals without tool tightening as shown below Note For reconnection press the part as shown in the red circle so as to pull out the cable Corresponding Relationship Between Cables and Pins Pin 1 White orange Pin 2 Orange Pin 3 White green Pin 4 Blue Pin 5 White blue Pin 6 Green DRM Termianls DRM 5 Fasten the swivel nut and connect the other end to the...

Page 103: ... For the PF mode see the reactive power regulation instruction in 7 4 LCD Initial Settings Reactive Power PF OFF Q u Q p Qt 12 2 1 Qt Mode Qt limit the maximum ratio of reactive power to rated apparent power in The Qt limit ranges from 60 0 to 60 0 Qt Setting Qt Limit 060 0 12 2 2 Q P Mode The PF of the inverter output varies in response to the output power of the inverter Leading PF 1 000 Lagging...

Page 104: ...ies in response to the grid voltages V1 Ref 207 0V V2 Ref 220 0V V3 Ref 250 0V V4 Ref 265 0V 030 0 000 0 Q1 Ref Q2 Ref Q3 Ref Q4 Ref 030 0 000 0 Tab 12 3 Q U Mode Parameter Explanations Parameter Explanation Default Range AU WP AU except WP NZ V1 Ref Grid voltage reference value 1 205 0 V 207 0 V 207 0 V 46 V 299 V V2 Ref Grid voltage reference value 2 220 0 V 220 0 V 220 0 V V3 Ref Grid voltage r...

Page 105: ...n Press to select the desired option and Press ENT to confirm Active Power Volt watt Frq watt Volt watt Chrg 12 3 1 Volt watt Response The Volt watt response mode is enabled by default Set four grid voltages The output power of the inverter will vary in response to the grid voltages Volt watt Enable Disable 1 2 V1 Ref 207 0V V2 Ref 220 0V V3 Ref 250 0V V4 Ref 265 0V P1 Ref 100 0 P2 Ref 100 0 P3 Re...

Page 106: ...V V2 V3 V4 210 220 230 240 250 260 270 40 60 20 80 0 V1 100 Default characteristic Range lower limit Range upper limit Fig 12 3 Volt Watt Response Curve AU for example 12 3 2 Volt watt Response for Battery Charging When the power from the grid is required to charge the energy storage system the import power from the grid varies in response to the grid voltages The response curve is defined by the ...

Page 107: ...Ref Grid voltage reference value 2 220 0 V 220 0 V 220 0 V 216 V 230 V V3 Ref Grid voltage reference value 3 235 0 V 250 0 V 244 0 V 235 V 255 V V4 Ref Grid voltage reference value 4 250 0 V 265 0 V 255 0 V 244 V 265 V P1 Ref Power consumption upper limit 1 0 0 100 P2 Ref Power consumption upper limit 2 100 P3 Ref Power consumption upper limit 3 100 P4 Ref Power consumption upper limit 4 100 Power...

Page 108: ...verter output shall be ceased i e 0 W OverFrq Start OverFrq End 50 25 Hz 52 00 Hz The output power will remain at or below the lowest power level reached in response to an over frequency event between 50 25 Hz and 52 Hz This is to provide hysteresis in the control of the inverter When the grid frequency has decreased back to 50 15 Hz or less for at least 60 s the power level will be increased at a...

Page 109: ...and 49 75 Hz This is to provide hysteresis in the control of the inverter When the grid frequency has increased back to 49 85 Hz or more for at least 60 s the charge rate of the storage system may be increased at a rate no greater than the power ramp rate limit which can be set according to 10 4 7 Setting the Protective Parameters Input Power Grid Frequency Hz 46 5 47 0 47 5 48 0 48 5 49 0 49 5 50...

Page 110: ...Battery Data Battery type Li ion battery Lead acid battery Battery voltage rated voltage range 48 V 32 V 70 V Max charging discharging current 65 A 65 A AC Input and Output Data Nominal AC output power to grid 4990 W Max AC output apparent power to grid 5000 VA Max AC input power from grid 3000 W Nominal AC output current 21 6 A Max AC output current 21 7 A Max inrush current peak duration 10 A 12...

Page 111: ...od solar Transformerless Isolation method battery HF Ingress protection IP rating IP65 Pollution degree outside inside the enclosure 3 2 Operating ambient temperature range 25 to 60 derating when 45 Allowable relative humidity range 0 100 Cooling method Natural convection Max operating altitude 2000 m Display Graphic LCD Communication 2 x RS485 Ethernet Wi Fi CAN Power management 1 x Digital outpu...

Page 112: ... Nominal AC frequency 50 Hz Operating ambient temperature range 25 to 60 Power consumption 3 VA 2 W Dimensions W x H x D 220 mm x 230 mm x 90 mm Mounting method Wall mounting bracket Weight 2 6 kg 13 3 Energy Meter Item Single phase Three phase Nominal voltage 240 Vac 230 Vac 400 Vac Input voltage range 180 Vac 286 Vac 180 Vac 276 Vac Power consumption 2 W 10 VA 2 W 10 VA Max operating current 100...

Page 113: ...r the faulty device Exclusion of Liability In the following circumstances SUNGROW has the right to refuse to honor the quality guarantee If the free warranty period for the whole machine components have expired If the device is damaged during transport If the device was incorrectly installed refitted or used If the device is operated in a very improper environment as described in this manual If th...

Page 114: ...ial number of the inverter Error code name Brief description of the problem China HQ Sungrow Power Supply Co Ltd Hefei 86 551 65327834 service sungrowpower com Australia Sungrow Australia Group Pty Ltd Sydney 61 2 9922 1522 service sungrowpower com au Brazil Sungrow Do Brasil Sao Paulo 55 11 2366 1957 latam service sa sungrowpower com France Sungrow France Lyon 33420102107 service sungrow emea com...

Page 115: ...l 82 70 7719 1889 service kr sungrowpower com Malaysia Sungrow SEA Selangor Darul Ehsan 60 19 897 3360 service my sungrowpower com Philippines Sungrow Power Supply Co Ltd Mandaluyong City 63 9173022769 service ph sungrowpower com Thailand Sungrow Thailand Co Ltd Bangkok 66 891246053 service th sungrowpower com Spain Sungrow Ibérica S A U Mutilva 34 948 05 22 04 service sungrow emea com Romania Ser...

Page 116: ... emea com U S A Mexico Sungrow USA Corporation Phoenix 1 833 747 6937 techsupport sungrow na com Vietnam Sungrow Vietnam Hanoi 84 918 402 140 service vn sungrowpower com Belgium Netherlands and Luxembourg Benelus 31 08000227012 only for Netherlands service sungrow emea com Poland 48 221530484 service sungrow emea com ...

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