Sungrow SC50HV-20 User Manual

Power conversion system

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User Manual

SC50HV-20/SC60HV-20

Power

Conversion

System

(PCS)

SC50_60HV-20-UEN-V13-202102 Version: 1.3

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Summary of Contents for Sungrow SC50HV-20

Page 1 User Manual SC50HV-20/SC60HV-20 Power Conversion System (PCS) SC50_60HV-20-UEN-V13-202102 Version: 1.3...
Page 3 Read the manual and other related documents before any work on the PCS 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.
Page 4 DANGER indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury. WARNING indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury. CAUTION indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.
Page 6 Contents About This Manual ..............I Safety Instructions .............. 1 Intended Usage ................. 1 Important Safety Instructions ............. 2 During Operation................ 3 1.3.1 Manuals ..................3 1.3.2 Personnel .................. 3 1.3.3 Markings on the PCS ..............3 1.3.4 Safety Warning Signs ..............4 1.3.5 Storage Battery Protection ............
Page 7 Installation Flow ..............13 Unpacking and Storage ............15 Unpacking and Inspection ............15 Identifying PCS................ 15 Delivery Contents ..............17 Storage of PCS ............... 17 Installation................19 Installation Site Selection ............19 Moving PCS to Installation Site ..........22 Installation Tools ..............22 Installing the PCS ..............
Page 8 Disconnecting, Dismantling and Disposing the PCS ... 42 Disconnecting the PCS ............42 Dismantling the PCS ..............43 Disposing the PCS ..............43 Troubleshooting and Maintenance........44 Troubleshooting ............... 44 Maintenance ................47 9.2.1 Routine Maintenance .............. 47 9.2.2 Maintenance Instruction ............47 10 iSolarCloud App ..............
Page 9 11.1 Technical Data ................. 68 11.2 Exclusion of Liability ..............69 11.3 Contact Information ..............71...
Page 11 1 Safety Instructions 1.1 Intended Usage SC50HV-20/SC60HV-20 is a three-phase grid-connected PCS applicable to energy storage systems. The charging and discharging system with SC50HV-20/SC60HV-20 is shown below: Fig. 1-1 Energy storage system Name Energy storage batteries (lead-acid battery, lithium battery and etc.)
Page 12  Installation described in this section must be strictly observed. Any other or additional installation other than the described installation is not permitted.  Installation and connections other than the contents described in this section may lead to device damages and void warranty claims. 1.2 Important Safety Instructions This section introduces the safety instructions during operation of the PCS.
Page 13 Follow the steps in this manual strictly to power the device after maintenance and troubleshooting. 1.3 During Operation 1.3.1 Manuals Very important information about the PCS operation is contained in this manual. All the descriptions in this manual, especially those safety-related items, must be complied with.
Page 14 1.3.4 Safety Warning Signs Please respect the followings during installation, daily maintenance or troubleshooting of the PCS:  An obvious marking should be placed in the PCS upstream and downstream to keep the switch from accidental reconnection;  A temporary warning sign or barrier must be posted around the operation area;...
Page 15  Use high quality instruments that can meet the field requirements.  Ensure the safety and correctness of instruments connection and use to avoid electric arc. 1.3.8 Parameter Setting Some settable parameters in the software are closely related to the operation of the PCS.
Page 16 1.3.11 Maintenance and Service Wait at least 5 minutes after the PCS stops and then open the PCS front door to maintain or service. Before any service work, observe the followings.  Ensure that the PCS will not be started accidentally. ...
Page 17 PCS. The actual product you receive may differ. Should you have any specific requirements, please inform us.  This manual may not cover all possible situations. Should a specific problem occur that is not explained in this manual, please contact Sungrow.
Page 18 PV Power Plant Wind Power Plant EV Charging Station Discharge Charge Energy Storage Device Power Load Fig. 2-1 Smart grid and energy storage system 2.2 Product Description 2.2.1 Model Description The model description is as follows (take SC50HV-20 as example):...
Page 19 Model AC output power off-grid voltage voltage 55 kVA @ 45 ℃ / 50 kVA @ SC50HV-20 3 / PE, 400 V 3/N/PE, 230V 50 ℃ 66 kVA @ 45 ℃ / 60 kVA @ SC60HV-20 3 / PE, 480 V 3/N/PE, 277V 50 ℃...
Page 20 2 Product Introduction User Manual Item Name Description The fan is located on the back of the cover Cover plate of the fan plate and used for the forced cooling of the To disconnect the PCS from the AC output AC switch safely Second protective earth terminals as specified...
Page 21 User Manual 2 Product Introduction Tab. 2-2 LED indicator description LED state Definition indicator The device is connected to the grid and operating normally. The Bluetooth communication is connected and Fast blink (Period: 0.2s) there is data communication. No system fault occurs. Slow flash The device is in standby or startup state (Period: 2s)
Page 22 2 Product Introduction User Manual DC contactor GRID Filter Filter Filter AC SPD DC SPD DC BUS DC/AC AC Relay AC Switch 直流开关 Fig. 2-4 Main Circuit Diagram 2.3.2 Functions Description PCS functions can be grouped as the following:  Conversion function PCS converts the direct current power into alternating current power, which conforms to the grid requirement of its installation country.
Page 23 3 Installation Flow Fig. 3-1 shows the installation flow of PCS. Please follow these procedures when installing the PCS. Start Unpacking and Inspection Read User Manual Install Immediately？ Storage Mounting Location Selection Moving the PCS Mounting the PCS Electrical Connection Check before Commissioning Commissioning Troubleshooting...
Page 24 3 Installation Flow User Manual Tab. 3-1 Description of Installation Flow Reference Order Description Chapter Unpacking and inspection Section 4.1 Read this manual, especially the section on Chapter 1 “safety instruction” Store the PCS unit if not install immediately Section 4.3 Choose the best installation site Section 5.1 Moving the PCS to installation site...
Page 25 A nameplate is attached to one side of the PCS. It provides information on type of PCS, along with the most important specifications, marks of certification institutions, website and serial number which is available and identified by Sungrow. (Take SC50HV as an example)
Page 26 Fig. 4-1 Nameplate of PCS *Image shown here is for reference only. Actual product you receive may differ. Item Description SUNGROW logo and product type Technical data of PCS Warning signs of PCS. Company name, website and origin Tab. 4-1 Description of Icons on the Nameplate...
Page 27 Store the PCS properly when the PCS is not to be installed immediately. Sungrow shall hold no liability for the corrosion of the device or the failure of device internal components caused by storage of the device not following the requirements specified in this manual.
Page 28 Replace the packing in time if necessary.  The packing should be upright.  If the PCS is stored for half a year or longer time, local installer or service dept. of Sungrow should perform a comprehensive test before connecting the PCS into energy storage system.
Page 29 5 Installation 5.1 Installation Site Selection Select an optimal installation site for safe operation, long service life and outstanding performance.  Take the load capacity of the wall into account. The wall (concrete wall or metal frame) should be strong enough for the weight of the PCS over a long period.
Page 30 5 Installation User Manual  Place the PCS at eye level for easy viewing and operation. Ground  Install vertically for sufficient heat dissipation.  With an IP65 protection rating, the PCS can be Max. ambient temperature: installed both outdoors and indoors. 60℃( +140°...
Page 31 User Manual 5 Installation  Ensure there is enough space for convection (The fans are maintained on the left side of the PCS, and a larger clearance is required.) Cool air Hot air ≥600mm/23.6in ≥800mm/31.5in ≥450mm/17.7in Ground  When installing multiple PCS, it is recommended to install multiple devices side by side.
Page 32 5 Installation User Manual  Do not install the PCS in a confined space. The PCS will not work normally if otherwise.  Install the PCS where children cannot reach.  Do not install the PCS near residential areas. Noise can be produced during PCS operation which may affect the daily life.
Page 33 User Manual 5 Installation Type Tool Protective Dust mask Earplugs Goggles gloves Insulated Vacuum shoes cleaner Hammer drill Rubber mallet Slotted Phillips screwdriver screwdriver Wrench Socket wrench Wire cutter Opening:16m Install ation tool crimping tool RJ45 crimping Wire stripper Hydraulic pliers tool ...
Page 34 5 Installation User Manual 447mm/17.60in 2-M4×10 311mm/12.24in 32mm/1.26in 447mm/17.60in Fig. 5-1 Dimensions of the bracket (figures in inch) The stainless fasteners are supplied for attaching the bracket to metal frame. 45mm(1.77inch) Fig. 5-2 Dimensions of fastener for metal frame (figures in mm) To install the PCS to concrete walls, the user needs to purchase expansion bolts with proper size (recommended: M10*65) to attach the bracket to concrete walls.
Page 35 User Manual 5 Installation Secure the bracket to the metal frame firmly with the supplied fastener. Step 5 The torque of the fasten nut is 35 Nm. Install backplate Name Description Hexagon nut Spring washer Flat washer Screw bolt M10*45 Metal frame Bracket Lift the PCS above the bracket and then slide down to make sure they...
Page 36 5 Installation User Manual Drill holes according to the marks made before. Step 4 In order to avoid electrical shock or other injury, inspect existing electronic or plumbing installations before drilling holes. Mark positions Drill holes Attach the backplate to the wall firmly with the supplied expansion bolt Step 5 set.
Page 37 6 Electrical Connection Once the PCS is secured to the installation site, it can be connected to the energy storage system. All electrical connections must comply with local regulations and related electrical rules. Improper cable connection may lead to a fatal injury or permanent damage to the device.
Page 38 Rated current ≥1500Vdc ≥150A DC fuses circuit breakers ≥400Vac (SC50HV-20) ≥100A circuit breakers ≥480Vac (SC60HV-20) If the altitude exceeds 4000 meters, the actual withstand current and voltage of the DC fuse and AC circuit breaker need to meet other parameters besides the rated current and voltage.
Page 39 In European and Asia-Pacific regions, this secondary protective grounding connection cannot replace the connection of the terminals in the AC wiring. Both shall be reliably grounded. Otherwise, Sungrow will not take any responsibility for the possible consequences. In other regions (such as North America), the secondary protective grounding can be implemented in accordance with the relevant standards of the country/region.
Page 40 If multiple PCSs are connected in parallel to the load, ensure that the total number of parallel PCSs does not exceed 6. Otherwise, please contact SUNGROW for technical scheme. Grid-connected scene If multiple PCSs are connected in parallel to the grid, ensure that the total number of parallel PCSs does not exceed 25.
Page 41 User Manual 6 Electrical Connection Description Remark Cross section Range: 35mm ~70 mm / 4AWG~4/0AWG cables  If the aluminum cable is selected, in order to ensure a reliable electrical connection, use the the copper and aluminum conversion terminal to avoid direct contact between the AC copper bar and the aluminum cable.
Page 42 6 Electrical Connection User Manual Strip off AC cables as shown below. Step 3 For flexible cables (stranded wires), use crimping lugs. Strip the protection layer and insulation layer by specific length, as Step 4 described in the figure below. B=E+(2~3)mm Fig.
Page 43 User Manual 6 Electrical Connection L1 L2 L3 34~40 N.m * Pictures here are indicatively only. Product in kind prevail.  Please avoid squeezing the cable insulation layer into the AC terminal. Improper connection may affect the normal operation of the PCS.
Page 44 6 Electrical Connection User Manual 6.5.2 Connection Procedure Prepare the cable and crimp cord end terminal. Step 1 L = E + (2~3)mm 1: Heat shrink tubing 2: Cord end terminal Loosen the swivel nut of the gland terminal (Marked as “PE cable”) and Step 2 select an appropriate seal according to cable outer diameter.
Page 45 User Manual 6 Electrical Connection *If the aluminum cable is selected, in order to ensure a reliable electrical connection, use the copper and aluminum conversion terminal to avoid direct contact between the DC copper bar and the aluminum cable. Conversion terminal Aluminum cable The device may be damaged or operate abnormally if the aluminum cable is directly connected to the copper bar.
Page 46 6 Electrical Connection User Manual Rotate the BAT switch to the “OFF” Step 1 position. Strip the insulation layer of the DC cable to Step 2 proper length according to the DC cable specification. Insert the end of the DC cable to the cable socket that matches with the Step 3 M10 bolt and tighten it with the proper tool.
Page 47 Once positive and negative inputs are short-circuited, it can cause unrecoverable damage to the PCS. Sungrow shall hold no liability for any possible consequences caused by ignorance of this warning. Pull the cable gently to make sure it is secured.
Page 48 6 Electrical Connection User Manual Seal the gap between the cable and the gland with duct seal or other suitable materials to prevent the entry of foreign bodies or moisture and ensure long-term and normal operation of the PCS. Connect the communication devices. Refer to other manuals and Step 6 documents if there are other devices.
Page 49 User Manual 6 Electrical Connection SYNC_H SYNC_L CAN2H CAN2L SYNC_H SYNC_L CAN2H CAN2L CANL CANH CANL CANH PGND The terminal CON1 of PCS1 is connected to the secondary side of the transformer, and the PCSs are connected side by side (pay attention to the wiring of PCSn).
Page 50 7 Commissioning Commissioning is a critical procedure for an energy storage system, which can protect the system from fires, and personnel from injury and electrical shock. 7.1 Inspection before Commissioning Before starting the PCS, you should check the following items. The PCS should be accessible for operation, maintenance and service.
Page 51 User Manual 7 Commissioning is initialized, send start instructions via the App For details, please refer to “10.4.2 Login Steps”. The PCS feeds AC power to the grid and enters into the running state. Step 7 Observe the status of LED indicator panel. (See Tab. 2-2LED indicator Step 8 description for details.)
Page 52 8 Disconnecting, Dismantling and Disposing the PCS 8.1 Disconnecting the PCS For maintenance work or any service work, PCS must be switched off. In normal operation, switching off is not necessary. In order to disconnect the PCS from the AC and DC power sources, you should proceed as follows.
Page 53 User Manual 8 Disconnecting, Dismantling and Disposing the PCS Loose screws to remove AC cables. Step 6 Disconnect DC cables from the PCS. Step 7 8.2 Dismantling the PCS Refer to Chapter 5 and Chapter 6 to dismantle the PCS in reverse steps. If the PCS will be reinstalled in the future, please refer to 4.4 Storage of PCS for a proper conservation.
Page 54 2. Check whether the load is excessively heavy DC under voltage during off-grid operation 3. Check whether the battery runs normally 4. If the fault still exists, please contact Sungrow Service. 1. Check whether the external grid is abnormal during on-grid operation DC over voltage 2.
Page 55 3. Check whether the fans run normally 4. If the fault still exists, please contact Sungrow Service. 1. The fault can be caused by poor sunlight or damp environment, and the PCS will be reconnected to the grid after the environment is improved.
Page 56 Sungrow Service. polarity 1. Check whether polarities of the connected battery are reversed reversed 2. If the fault still exists, please contact Sungrow Service. current If the fault occurs repeatedly, please contact Sungrow imbalance Service. DC SPD fault Check if the SPD is loose or damaged.
Page 57 Devices Replace the fuse. Every 6 months check Contact Sungrow to order new DC SPDs. 9.2.2 Maintenance Instruction Fans’ Maintenance There are three fans at the side of the PCS for active cooling during running operation. If the fans are dirty or out of work, the PCS may not be well cooled down and its efficiency may accordingly decrease.
Page 58 9 Troubleshooting and Maintenance User Manual Disconnect all electrical connection in the reverse procedures in the Step 4 chapter 6 Electrical Connection Lift up the PCS over the backplate with the help of others and then Step 5 remove it from the wall. Step 6 Place the PCS onto the platform.
Page 59 User Manual 9 Troubleshooting and Maintenance Clean Air Inlet and Outlet A huge amount of heat is generated in the process of running the PCS. The PCS adopts a controlled forced-air cooling method. In order to maintain good ventilation, please check whether there is anything blocking the air inlet and outlet.
Page 60 10 iSolarCloud App 10.1 Brief Introduction The iSolarCloud App can establish communication connection to the PCS via the Bluetooth, thereby achieving near-end maintenance on the PCS. Users can use the App to view basic information, alarms, and events, set parameters, or download logs, etc.
Page 61 User Manual 10 iSolarCloud AppiSolarCloud A The App icon appears on the home screen after installation. iSolarCloud 10.3 Menu Boot / Hot standby / Shutdown iSolarCloud System parameter Home Communication parameters Faults and alarms Running information Operation parameters Power generation Charging &...
Page 62 10 iSolarCloud App User Manual  The mobile phone is within 5m away from the PCS and there are no obstructions in between.  The Bluetooth function of the mobile phone is enabled. 10.4.2 Login Steps Open the App to enter the login interface, and click "Direct Login" to Step 1 enter the next screen.
Page 63 User Manual 10 iSolarCloud AppiSolarCloud A  Enter "user" in the username bar according to the current user permission. For details, refer to 1.3 User Permission.  The initial password is "pw1111" which should be changed for the consideration of account security. If the PCS is not initialized, you will enter the initialization protection Step 4 parameter quick setting interface.
Page 64 10 iSolarCloud App User Manual SC50HV Fig. 10-5 Home page Tab. 10-1 Home page description Designation Description Date and time System date and time of the PCS Present operation state of the PCS PCS state For details, refer to Tab. 10-2Description of PCS state Charge Today power yield and accumulative power yield of...
Page 65 User Manual 10 iSolarCloud AppiSolarCloud A State Description The PCS is in hot standby state. After setting the start Hot standby instruction, it can respond quickly and output power Instruction The stop state triggered by stop instruction sent by the App or shutdown If a fault occurs, PCS will automatically stop operation, Fault...
Page 66 10 iSolarCloud App User Manual Fig. 10-6 Running Information The run info includes the run, input, output and other info. 10.7 History Record ”on the navigation bar to enter the history record screen, as shown in Tap" the following figure. Fig.
Page 67 User Manual 10 iSolarCloud AppiSolarCloud A Fig. 10-8 Alarm records  Click " " to select a time segment and view corresponding records.  The PCS can record up to 100 latest entries. Select one of the records in the list and click the record, to view the detailed fault info as shown in following figure.
Page 68 10 iSolarCloud App User Manual Tab. 10-3 Explanation of power yields records Parameter Description Display the power output in a single day. Each point in the Power curve curve is the percentage of present power and nominal power. Daily charge and Display daily discharge and charge volumes.
Page 69 User Manual 10 iSolarCloud AppiSolarCloud A  Click " " to select a time segment and view corresponding event records.  The PCS can at most record the latest 100 events 10.8 More Tap " " on the navigation bar to enter the "More" screen, as shown in the following figure.
Page 70 10 iSolarCloud App User Manual Fig. 10-11 More 10.8.1 Boot / Hot standby / Shutdown Tap " "/" "/" " to issue the corresponding command to the PCS. 10.8.2 System parameter Tap " " to enter the system parameter screen.
Page 71 User Manual 10 iSolarCloud AppiSolarCloud A Tab. 10-4 Explanation of system parameters Parameter Description Date Setting Time deviation between the time on the device and the local time of the installation site may cause data logging failure. Please adjust device time according to the local Time Setting time.
Page 72 10 iSolarCloud App User Manual 10.8.4 Operation parameters Tap " " to enter the operation parameter screen. For convenient protection parameter setting, the protection parameters are preset for certain countries. After country setting, select the protection stage as single or multiple and then set the corresponding protection parameter. Tab.
Page 73 User Manual 10 iSolarCloud AppiSolarCloud A Tab. 10-6 Multi-stage Protection Parameters Explanation Parameter Range AC over-voltage level 1 protection value 105.0%~150.0% AC over-voltage level 2 protection value 105.0%~150.0% AC over-voltage level 3 protection value 105.0%~150.0% AC over-voltage level 4 protection value 105.0%~150.0% AC over-voltage level 5 protection value 105.0%~150.0%...
Page 74 10 iSolarCloud App User Manual Parameter Range AC over-frequency level 2 protection time 0.02s~1000.00s AC over-frequency level 3 protection time 0.02s~1000.00s AC over-frequency level 4 protection time 0.02s~1000.00s AC over-frequency level 5 protection time 0.02s~1000.00s AC under-frequency level 1 protection value 45.00Hz~59.80Hz AC under-frequency level 2 protection value 45.00Hz~59.80Hz...
Page 75 User Manual 10 iSolarCloud AppiSolarCloud A 10.8.7 Firmware update Tap " " to enter the firmware upgrade screen, as shown in the following figure. Fig. 10-12 Firmware upgrade Select the desired upgrade package to upgrade the firmware. 10.9 Configuring BMS Data Sources Enter the “Communication Parameters”...
Page 76 10 iSolarCloud App User Manual Check the set parameters in “Operation Information”, check and confirm Step 3 the correct and proceed to the next step. Configure the unit, offset, address, and finally configure the valid flag. Unit refers to resolution or accuracy, respectively 0.1, 1, 0.001 ...
Page 77 User Manual 10 iSolarCloud AppiSolarCloud A After the PCS is powered on, enter "Forbidden" on the [Wake-up Step 4 Command] page, enter 0 for "Address" in the [Command 1] page, and enter "1" for "Valid Flag". Close the switch, the "valid flag" on the page of [Instruction 1] is 0. Step 5...
Page 78 11 Appendix 11.1 Technical Data Parameters SC50HV-20 SC60HV-20 DC side DC Voltage range 700 - 1500V 840 - 1500V Min. DC voltage 580 V 700V voltage range 580 - 1300V(@50℃) 700 - 1300V(@50℃) nominal power（On Grid） 580 - 1500V(@35℃) 700 - 1500V(@35℃)
Page 79 User Manual 11 Appendix Efficiency Max. efficiency 98.4% 98.6% Protection Reverse polarity protection DC switch AC switch DC Type II / AC Type II DC Type II / AC Type Overvoltage protection Grid monitoring / Ground Yes / Yes Yes / Yes fault monitoring Insulation monitoring Overheat protection...
Page 80  Damages caused by irresistible natural environment The use of supplied software produced by Sungrow Power Supply Co., Ltd. is subject to the following conditions:  Sungrow Power Supply Co., Ltd. rejects any liability for direct or indirect damages arising from the use of the SolarInfo software.
Page 81  Serial number of the device  Fault code/name  Brief description of the problem China (HQ) Australia Sungrow Power Supply Co., Ltd Sungrow Australia Group Pty. Ltd. Sydney Hefei +61 2 9922 1522 +86 551 65327834 service@sungrowpower.com.au service@sungrowpower.com Brazil...
Page 82 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 Thailand Co., Ltd.
Page 83 User Manual 11 Appendix 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 Vietnam Belgium, Netherlands Luxembourg (Benelus) Sungrow Vietnam Service (only NL): Hanoi 08000227012 +84 918 402 140 service@sungrow-emea.com...

This manual is also suitable for:

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