Sungrow SH5K-20 Quick User Manual
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Sungrow SH5K-20 Quick User Manual

Grid-connected hybrid inverter
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Quick User Manual
SH5K-20
Grid-Connected Hybrid Inverter
SH5K-20-QUEN-Ver19-202007 Version：1.9

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Summary of Contents for Sungrow SH5K-20

  • Page 1 Quick User Manual SH5K-20 Grid-Connected Hybrid Inverter SH5K-20-QUEN-Ver19-202007 Version：1.9...
  • Page 3 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.

  • Page 4: System Overview

    System Overview...

  • Page 7: Table Of Contents

    Contents System Overview ...............II Safety ..................1 PV Panels ................. 1 Utility Grid .................. 1 Inverter ..................2 Battery ..................4 Installation................5 Location Requirements ............. 5 Installing the Inverter ..............6 Installing the Energy Meter ............8 Electrical Connection ............9 Terminal Description ..............9 Additional Grounding Connection ..........
  • Page 8 LCD Operation ..............38 Main Screen ................38 Viewing the Error Codes ............39 LCD Menu ................40 Setting the Country ..............41 Setting the Protective Parameters ........... 43 Setting the Communication Parameters ........44 Setting the Battery Type ............44 Troubleshooting ..............

  • Page 9: Safety

     The safety instructions in this manual cannot cover all the precautions that should be followed. Perform operations considering actual onsite conditions.  SUNGROW shall not be held liable for any damage caused by violation of the safety instructions 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.

  • Page 10: Inverter

    1 Safety Quick User Manual All electrical connections must be in accordance with local and national standards. Only with the permission of the local utility grid company, the inverter can be connected to the utility grid. 1.3 Inverter Danger to life from electric shocks due to live voltage Do not open the enclosure at any time.
  • Page 11 Quick User Manual 1 Safety Only qualified personnel can change the country setting. Unauthorized alteration may cause a breach 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: ...

  • Page 12: Battery

    1 Safety Quick User Manual 1.4 Battery Batteries deliver electric power, resulting in burns or a fire hazard when they are short circuited, or wrongly installed. Lethal voltages are present at the battery terminals and cables connecting to the inverter. Severe injuries or death may occur if the cables and terminals in the inverter are touched.

  • Page 13: Installation

    2 Installation 2.1 Location Requirements The inverter with IP65 can be installed both indoors and outdoors. Install the inverter in a place convenient for electrical connection, operation, and maintenance. Installation Environment Requirements  The installation environment must be free of inflammable or explosive materials.

  • Page 14: Installing The Inverter

    2 Installation Quick User Manual Installation Angle Requirements Never install the inverter horizontally, or with a forward tilt or with a backward tilt or even with upside down. The horizontal installation can result in damage to the inverter. Installation Clearance Requirements Reserve enough clearance around the inverter to ensure sufficient space for heat dissipation.
  • Page 15 Quick User Manual 2 Installation The depth of the holes should be about 70 mm. Be sure to adhere to the following screw assembly sequence: self-tapping screw, spring washer, fender washer, wall-mounting bracket. Mark the positions Drill the holes φ10 Secure the inverter with two Mount the inverter to the bracket M5 screws and washers...

  • Page 16: Installing The Energy Meter

    2 Installation Quick User Manual 2.3 Installing the Energy Meter The SUNGROW 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.

  • Page 17: Electrical Connection

    3 Electrical Connection 3.1 Terminal Description Backup Ctrl Fig. 3-1 Terminals at the Bottom of the Inverter Decisive Voltage Label Description Classification AC terminal for connection to the utility AC-Grid DVC-C grid. Two holes for the control cable and DI Backup Ctrl DVC-A cable of the backup box STB5K-20.
  • Page 18 3 Electrical Connection Quick User Manual Connection terminals on the inner configuration circuit board are shown below: Fig. 3-2 Configuration Circuit Board Inside the Inverter Decisive Tool Label Connection Voltage Requirements Classification Flat-head Backup screwdriver with C1, C2 DVC-A STB5K-20 an open end of 3 (for parallel...

  • Page 19: Additional Grounding Connection

    Quick User Manual 3 Electrical Connection Decisive Tool Label Connection Voltage Requirements Classification Backup STB5K-20 A1, B1 reserved, RS485 meter 120 Ohm RS485 Not applicable Temperature BAT_Temp. sensor PT1000 BAT_Com. Flat-head Battery (CANH, screwdriver with communication DVC-A CANL) an open end of 3 Power management Earth fault alarm...

  • Page 20: Ac Cable Connection

    3 Electrical Connection Quick User Manual L = E + (2~3)mm 1: Heat shrink tubing 2: OT/DT terminal Fasten the cable with a screwdriver. 3.0N.m Apply paint to the grounding terminal to ensure corrosion resistance. 3.3 AC Cable Connection Install an AC circuit breaker (recommended specification 32 A) between the inverter and the loads.

  • Page 21: Dc Cable Connection

    PV connectors to corresponding terminals only after ensuring polarity correctness. 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. Cable Requirements...

  • Page 22: Communication Connection

    3 Electrical Connection Quick User Manual  Tighten the cable gland with torque of 2.5 Nm–3.0 Nm. Positive insulator Positive crimp contact Crimp contact Negative insulator Cable gland Crimp contact Cable gland Negative crimp contact (Optional) 480.0 Backup Ctrl (1.5 N m) (Optional) Onl y for p aralle l mode.
  • Page 23 Quick User Manual 3 Electrical Connection Internet iSolarCloud server Inverter Router/Switch Remote Local access iSolarCloud App Webserver Explorer iSolarCloud Use a TIA/EIA 568B standard network cable with a diameter of 3 mm–5.3 mm. Remove the cable jacket by 8 mm–15 mm, and use the Ethernet crimper to crimp the cable.

  • Page 24: Energy Meter Connection

    3 Electrical Connection Quick User Manual 3.5.2 Wi-Fi Connection Unscrew the waterproof lid from the Wi-Fi terminal. Install the WiFi module with a torque of 1.5 Nm. Slightly shake it by hand to determine whether it is installed firmly, as shown below. Refer to the Quick User Manual delivered with the Wi-Fi module to configure the Wi-Fi.
  • Page 25 Quick User Manual 3 Electrical Connection Inverter Utility Grid Main fuse Main Switch Circuit breaker Network meter Energy Meter Load PE bar Neutral bar * The MEN connection only applies to Australia and New Zealand. Take out the RS485 cable from the packaging and connect the ends to terminals A and B on the Energy Meter, as shown below.
  • Page 26 3 Electrical Connection Quick User Manual  The line conductor L1 supplies power to the Energy Meter. At least the line conductor L1 and the neutral conductor must be connected to switch on the Energy Meter.  Just connect the line conductor L1 and the neutral conductor, then the three-phase Energy Meter can be used as a single-phase meter.
  • Page 27 Quick User Manual 3 Electrical Connection Connect the cables to the meter. − (a) Tighten the power supply Grid wires to terminal 3 (L) and terminal 6 (N). Load − (b) Tighten the RS485 wires to terminal 2 and terminal 5. −...

  • Page 28: Battery Connection

    3 Electrical Connection Quick User Manual 3.7 Battery Connection For the connections on the battery side, see the manuals supplied by the battery manufacturer. Only use properly insulated tools to prevent accidental electric shock or short circuits. If insulated tools are not available, use electrical tape to cover the entire exposed metal surfaces of the available tools except their tips.
  • Page 29 3.7.2 Connecting the CAN Cable The CAN cable enables communication between the inverter and the Li-ion battery from LG, Sungrow, GCL, Pylon (US2000B), BYD or TAWAKI. Take out the CAN cable from the packaging. Lead the cable through the cable gland and plug the wires into the corresponding terminals without tool tightening.

  • Page 30: Stb5K-20 Connection (Eps)

    LCD menu. 3.8 STB5K-20 Connection (EPS) The backup box STB5K-20 is installed between the SUNGROW meter and the hybrid inverter. For the installation and the cable connection of STB5K-20, see the Quick Installation Guide delivered with the STB5K-20 module.
  • Page 31 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 SH5K-20. Cross-section: 4 mm², cable diameter: 11 mm ~ 14 mm...

  • Page 32: Do Connection

    3 Electrical Connection Quick User Manual Connecting the Control Cable and DI Cable The control cable (with end marks C1 and C2) and the DI cable (with end marks DI1, DI2, DI3 and VDD) are equipped in the backup box STB5K-20 before delivery.

  • Page 33: Dred Connection

    Quick User Manual 3 Electrical Connection  DO1: Consumer load control. Please choose the appropriate contactor according to the load power, e.g., the contactor types of the 3TF30 series from SIEMENS (3TF30 01-0X). The relay is activated once the conditions of the control mode are satisfied.

  • Page 34: Retrofitting The Existing Pv System

    The power generation from the existing PV inverter will be firstly provided to the loads and then charge the battery. With the energy management function of the SH5K-20, the self-consumption of the new system will be greatly improved. The existing PV inverter works as a load in the...
  • Page 35 For example, retrofit an existing PV system (rated power: 3000 W) with SH5K-20 hybrid inverter (rated power: 5000 W). The total export limit can be set from 3000 W to 8000 W. The export power limit can also be set in the zero-export setting in commissioning.

  • Page 36: Commissioning

    4 Commissioning 4.1 Button Function The inverter offers four buttons for operation. Please refer to the following table before any operation of the inverter. Tab. 4-1 Button Function Button Description For navigating up or increasing the setting value. For navigating down or decreasing the setting value. For navigating to the left, quitting the menu or canceling the settings.

  • Page 37: Powering On The System

    Quick User Manual 4 Commissioning 4.2 Powering on the System Before starting the inverter, make sure that all the installation and connections are completed and verified. Proceed as follows to start the inverter for the first time. Rotate the DC switch of the inverter to "ON" position. Connect the AC switch between the inverter and the grid if applicable.
  • Page 38 4 Commissioning Quick User Manual Tab. 4-3 Parameters for the Grid Standards in Australia Parameter Default Over-voltage 260.0 260.0 260.0 260.0 260.0 260.0 260.0 1-Time (s) 1.80 1.80 1.80 1.80 1.80 1.80 265.0 265.0 265.0 265.0 265.0 265.0 265.0 2-Time (s) 0.20 0.20 0.20...
  • Page 39 Quick User Manual 4 Commissioning DD, MM, and YY stand for day, month, and year respectively. hh, mm, and ss stand for hour, minute, and second respectively. Zero-export setting ON: no power could be exported to the grid. OFF: all inverter output power could be exported to the grid.
  • Page 40 4 Commissioning Quick User Manual EPS function setting The emergency power supply (EPS) function is disabled by default. If the backup box EPS Setting STB5K-20 is installed, enable this function Disable and set the reserved capacity for Li-ion batteries via the “Setting” submenu after Enable successful commissioning.
  • Page 41 Quick User Manual 4 Commissioning Max. Chrg / Max. DChrg: Make sure that the charge or discharge current is not beyond the upper limit (65 A) to protect the battery from 0.300 C Max. Chrg overcharging or deep discharging. The unit C is the “capacity”, which refers to the maximum Max.

  • Page 42: Result Verification

    4.4.1 Meter Installation and Connection For Incorrect Installation Position Make sure that the 1-phase sensor of the SUNGROW meter should be placed to the phase line (L) from the main switch. If otherwise, the energy flow indicated on the LCD will be wrong.
  • Page 43 Quick User Manual 4 Commissioning Action LCD Explanation Turn off all the household loads. All the PV power generation should be exported to the grid, as shown in the “Correct” figure. For Reverse Sensor Connection Make sure that the arrow on the 1-phase sensor must point away from the grid towards the load.
  • Page 44 Press Press Run Info 2000 ON / OFF Settings Running 16:37 6 12 Scroll pages by pressing Input Mode Indep. Li-ion Sungrow Bat Tmp 36.1° C Bat Cap 4.8kWh Bat SOC 99.9% Self Csmp 89.9% CO2 Reduced 58kg Bat SOH 100.0%...
  • Page 45 Quick User Manual 4 Commissioning Start the inverter via the LCD menu. 4.4.3 System Time The correct system time is very important. If there is deviation between the system time and the local time, the inverter will not operate normally. The clock is in 24-hour format.

  • Page 46: Lcd Operation

    Running: The inverter is in its normal running state. 16:37: Current system time. Neither the grid power nor the load power will be displayed on the main screen in case of no SUNGROW meter installed. Tab. 5-1 State Descriptions State Description After being energized, the inverter tracks the PV strings’...

  • Page 47: Viewing The Error Codes

     Whether the battery level is sufficient and the cable connection is correct.  If no anomaly is found, disconnect the DC switch and main switch to restart.  If it still does not work, contact SUNGROW. 5.2 Viewing the Error Codes Viewing the Active Error icon or the “Error”...

  • Page 48: Lcd Menu

    5 LCD Operation Quick User Manual Viewing Error Record Press to turn pages and view all fault records. 1: the error is triggered. 0: the error is cleared. 5.3 LCD Menu Main Menu Run Info ON / OFF Settings Time Country Error Record Password: 111...

  • Page 49: Setting The Country

    Quick User Manual 5 LCD Operation please refer to the electric energy meter. (2) The SOH value of battery will be displayed as “--” for GCL batteries that do not have this parameter. The SOC value for lead-acid batteries is for reference only.
  • Page 50 5 LCD Operation Quick User Manual Only the codes of GB, NL, BE, CN, SA, AU and NZ are supported. Select the correct grid standard for the country code ”AU”. For grid standard and parameter descriptions, see Tab. 4-2 and Tab. 4-3. Tab.

  • Page 51: Setting The Protective Parameters

    Quick User Manual 5 LCD Operation Parameter Explanation Min-F prot. Under-frequency protection Grid under-frequency 1 (F<) 1-Time Grid under-frequency 1 (F<) tripping time Grid under-frequency 2 (F<<) 2-Time Grid under-frequency 2 (F<<) tripping time 5.5 Setting the Protective Parameters When the grid voltage or frequency reaches recovery value,...

  • Page 52: Setting The Communication Parameters

    5 LCD Operation Quick User Manual Parameter Explanation Default Range Recovery value for under-frequency fault. 47.50 Fmin-recover Inverter can start operating only 45 Hz–50 Hz when the grid frequency is above this value. Power Ramp The ramp rate of power variation. 16.67 % 5 %–100 % Rate...
  • Page 53 Quick User Manual 5 LCD Operation Stop the inverter via the LCD Battery Type Press menu before modifying the No Battery Pls key-off inverter battery type. Otherwise the first! Li-ion warning screen will prompt. Other Battery Press to select the battery type and Press to confirm.

  • Page 54: Troubleshooting

    4. Check whether the DC input voltage exceeds the start voltage of the inverter. 5. If all of the above are OK, please contact SUNGROW. 1. A fault is not resolved. The LED indicator is 2. Perform troubleshooting according to the fault type on lit red.
  • Page 55 Quick User Manual 6 Troubleshooting For Inverter Side Code Specification Troubleshooting 1. Check the grid voltage. Grid over-voltage. 2. If the grid voltage exceeds the (default range: 257 V–270 V) permissible range, consult the utility grid for a solution. Temporary grid over-voltage in This is a short-term fault.
  • Page 56 45 ℃ . If not, please upper limit. contact SUNGROW for a solution. Wait minutes inverter Relay fault on the grid side. recovery or restart the system. 041, Wait...
  • Page 57 3. If there is an access to the second PE terminal on the ground, and the fault still exists, enclosure is reliably connected. please contact SUNGROW for a solution. DC injection over-voltage fault The inverter will recover once the in the off-grid mode.
  • Page 58 PV1 boost short-circuit fault The inverter may be damaged. Contact SUNGROW for a solution. PV2 boost short-circuit fault 1. Check and clean the heat sink. 2. Check whether the inverter is installed in sunlight or the ambient INV over-temperature fault.
  • Page 59 1. Check whether the power cable connections of the meter are correct. Abnormal communication 2. Check whether the RS485 warning of the Sungrow Meter. connection is correct. (Inverter normally 3. Check if the 120 Ohm (2) connected to the grid.) resistor for RS485_2 is pushed to “ON”...
  • Page 60 6 Troubleshooting Quick User Manual Code Specification Troubleshooting restart the system. BDC current sampling fault. Slave communication Wait moment system fault. recovery or restart the system. BDC soft-start fault. 800,802 BDC internal permanent faults. Restart the system 804,807 1. Check and clean the heat sink. 2.
  • Page 61 Restart the system, if the fault persists, competing please contact SUNGROW failure. solution. Mismatched software Contact SUNGROW for a solution. version. Restart the system, if the fault persists, Software self-verifying please contact SUNGROW failure. solution. Battery cell over-voltage...
  • Page 62 6 Troubleshooting Quick User Manual Code Specification Troubleshooting fault. connected grid charge/discharge has stopped. 2. Wait a moment for system recovery or restart the system. Battery precharge inverter normally voltage fault. connected grid charge/discharge has stopped. Battery under-voltage fault. 2. Check the battery port voltage and the communication cable connection.

  • Page 63: Appendices

    7 Appendices 7.1 Inverter Technical Data PV Input Data Max. PV input power 6500 W Max. PV input voltage 600 V Startup voltage 125 V Nominal input voltage 350 V MPP voltage range 125 V–560 V MPP voltage range for nominal 240 V–520 V power No.
  • Page 64 7 Appendices Quick User Manual 45 Hz–55 Hz Grid frequency range (this may vary with grid standards) Total Harmonic Distortion (THD) < 3 % (of nominal power) DC current injection < 0.5 % (of nominal current) > 0.99 at default value at nominal power Power factor (adj.

  • Page 65: Stb5K-20 (Backup Box) Technical Data

    Quick User Manual 7 Appendices Weight 22 kg Backup Data Nominal voltage 230 Vac (±2 %) Total harmonic factor output 2 % (full resistive load) Frequency range 50 Hz (±0.2 %) Switch time to emergency mode 0.8 overexcited/leading–0.8 Power factor underexcited/lagging Max.

  • Page 66: Quality Assurance

    Evidence During the warranty period, the customer shall provide the product purchase invoice and date. In addition, the trademark on the product shall be undamaged and legible. Otherwise, SUNGROW has the right to refuse to honor the quality guarantee. Conditions ...
  • Page 67 Model of the inverter  Serial number of the inverter  Error code/name  Brief description of the problem China (HQ) Australia Sungrow Power Supply Co., Ltd Sungrow Australia Group Pty. Ltd. Hefei Sydney +86 551 65327834 +61 2 9922 1522 service@sungrowpower.com service@sungrowpower.com.au...
  • Page 68 Tokyo Seoul +81 3 6262 9917 +82 70 7719 1889 service@jp.sungrowpower.com service@kr.sungrowpower.com Malaysia Philippines Sungrow SEA Sungrow Power Supply Co., Ltd Selangor Darul Ehsan Mandaluyong City +60 19 897 3360 +63 9173022769 service@my.sungrowpower.com service@ph.sungrowpower.com Thailand Spain Sungrow Ibé rica S.A.U.
  • Page 69 Quick User Manual 7 Appendices U.S.A, Mexico Sungrow Power UK Ltd. Sungrow USA Corporation Milton Keynes Phoenix +44 (0) 01908 414127 +1 833 747 6937 service@sungrow-emea.com techsupport@sungrow-na.com Belgium, Netherlands Vietnam Luxembourg (Benelus) Sungrow Vietnam 08000227012 (only Hanoi Netherlands) +84 918 402 140 service@sungrow-emea.com...

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