Page 1 Preventative Maintenance Manual PowerTitan1.0 PowerTitan1.0Preventative Maintenance ManualPreventative Maintenance Manual-MEN-Ver13- 202407 Preventative Maintenance Manual-MEN-Ver13-202407...
Page 3: All Rights Reserved
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...
Page 4: About This Manual
About this manual To ensure the safety and efficiency of the system, regular daily inspections of the energy storage system are necessary. This manual mainly introduces the inspection intervals and steps of the energy storage system. This manual uses products sold in the European region as an example. Products sold in other regions are similar.
Page 5 This symbol indicates that there is a potential risk, which may cause the equipment to fail to operate normally or cause property damage if not avoided. "Notes" are the additional information in the manual, which emphasize and supplement the contents, and may also provide skills or tips for optimizing the use of the product, and help the user solve a problem or save time.
Page 6 Symbol Description This symbol indicates the need to wear safety goggles. This symbol indicates that the product is recyclable. This symbol indicates that lithium batteries are recyclable. This sign indicates that the noise is harmful, please wear earplugs.
Page 7: Table Of Contents
Contents All Rights Reserved .....................I About this manual .......................II 1 Safety Overview ....................1 1.1 Personnel Requirements.................1 1.2 Weather and Environmental Requirements............1 1.3 PPE and ESE....................2 1.4 Inspection Tools .....................3 1.5 Operation Requirements .................4 1.6 Component Scrapping ..................6 2 Battery Storage System ..................7 2.1 Inspection Checklist..................7 2.2 Check Appearance ..................13...
Page 8 2.4.2.2 List of Consumables ..............40 2.4.3 Inspection Procedures.................40 2.4.4 Inspection steps (once a year)..............42 2.5 Check Grounding and Equipotential Connections..........45 2.5.1 Safety Precautions ................45 2.5.2 Material Preparation ................45 2.5.2.1 Tool preparation.................45 2.5.2.2 List of Consumables ..............46 2.5.3 Inspection Procedures.................46 2.5.4 Inspection steps (once a year)..............48 2.6 Check Components ..................50 2.6.1 Safety Precautions ................50 2.6.2 Material Preparation ................51...
Page 9 2.9.4 Inspection steps (once every six to twelve months) ........78 2.9.5 Inspection steps (once a year)..............86 2.10 Appendix....................89 2.10.1 Web Login ..................89 2.10.1.1 BSC Login Steps ..............89 2.10.1.2 LC Login Steps ................90 2.10.2 Connect the detector via Bluetooth .............91 2.10.3 Prepare Cables .................96 2.10.4 Tightening Torques................97 2.10.5 Powering up and Shutdown ...............98 2.10.5.1 Power on/off via WEB ..............98...
Page 10 3.4.4 Inspection Steps (Once a Year) ............123 3.5 Check Grounding and Equipotential Connections.......... 127 3.5.1 Safety Precautions ................127 3.5.2 Material Preparation ................127 3.5.2.1 Tool Preparation ..............127 3.5.2.2 List of Consumables ..............127 3.5.3 Inspection Procedures............... 128 3.5.4 Inspection Steps (Once a Year) ............
Page 11 4.4.1 Safety Precautions ................165 4.4.2 Material Preparation ................165 4.4.2.1 Tool Preparation ..............165 4.4.2.2 List of Consumables ..............166 4.4.3 Inspection Procedures............... 167 4.4.4 Cable Connections (Once a Year) ............168 4.4.5 Grounding and Equipotential Connections (Once a Year) ..... 173 4.5 System Maintenance ..................
Page 12 5.2.2 List of Consumables................199 5.3 Inspection Procedures ................200 5.4 Check the External Condition of the Transformer .......... 200 5.5 Check Cable Connections ................203 5.6 Check the Transformer Protection Status ............. 205 5.7 Check the Grounding Status................ 208 6 Ring Main Unit ....................
Page 13: Safety Overview
• Do not conduct maintenance operations while the doors of the system are open in overcast, rainy, humid or windy weather. Sungrow is not liable for any losses incurred if such situations cannot be avoided. •...
Page 14: Ppe And Ese
1 Safety Overview Preventative Maintenance Manual Warning sign settings To prevent unauthorized personnel from approaching the equipment and causing misoperation or accidents, adhere to the following precautions: • Place conspicuous warning signs around the equipment to prevent accidents caused by accidental turning-on. •...
Page 15: Inspection Tools
Preventative Maintenance Manual 1 Safety Overview Fluorescent vest Insulating gloves Safety helmet Safety goggles Earplugs Insulated shoes If working on live equipment, ensure that there are at least two operators on site and prepare the following ESE to ensure personal safety. Rescue rod Insulated stool Face shield...
Page 16: Operation Requirements
There are no components inside the battery unit that can be maintained by users. • Users are not allowed to maintain the batteries by themselves. Only personnel authorized by Sungrow may remove, replace, or handle the batteries. • Disassembly or incineration of the batteries may cause them to catch fire.
Page 17 To reduce the risk of electric shock, do not perform any maintenance operations beyond those specified in this manual. • Contact Sungrow customer service personnel for repairs if necessary. Component security • Do not apply a spray coating to any components inside or outside the equipment.
Page 18: Component Scrapping
1 Safety Overview Preventative Maintenance Manual Component Scrapping When damaged internal components are found during inspections and need to be scrapped, they should not be treated as regular waste. Some components can be recycled for reuse, while others may pollute the environment. Please contact a locally authorized professional recycling organization for proper disposal of the product and its internal components.
Page 19: Battery Storage System
Battery Storage System Inspection Checklist The inspection items for the battery cabinet are listed in the table below. • The recommended maintenance intervals provided below should be adjusted based on the specific environmental conditions where the product is installed. • Factors such as the scale of the plant, installation location, and on-site environmental conditions will influence the maintenance intervals.
Page 20 2 Battery Storage System Preventative Maintenance Manual Inspection Type Details interval Check the area around and above the outdoor cabinet for any flammable materials. Check the soldering points between the outdoor cabinet and the foundation steel plates for solidity and any signs of rust.
Page 21 Preventative Maintenance Manual 2 Battery Storage System Inspection Type Details interval Check equipment inside the outdoor cabinet for any damage or deformation. Check for any abnormal noises during the operation of the internal equipment. Check whether the temperatures Once every two inside the outdoor cabinet and on its years exterior are excessively high.
Page 22 2 Battery Storage System Preventative Maintenance Manual Inspection Type Details interval Check the cleanliness of circuit boards and components. Check the temperature and dust accumulation cooling fans. necessary, clean the cooling modules, etc. with a vacuum cleaner. Routinely check all metal elements for signs of rust.
Page 23 Preventative Maintenance Manual 2 Battery Storage System Inspection Type Details interval Check if fan blades rotate normally and are undamaged; if rotation fails or blades are damaged, replace the fan. Check if the dirt and blockage area on the air inlet for water pump cooling exceeds 5%.
Page 24 2 Battery Storage System Preventative Maintenance Manual Inspection Type Details interval Visual inspection Visually inspect the detectors within the battery cabinet. Check the external condition of the equipment for any damages compressions from nearby equipment. Check whether the equipment status indicator lights are normal.
Page 25: Check Appearance
Preventative Maintenance Manual 2 Battery Storage System Check Appearance 2.2.1 Safety Precautions When inspecting the top of the outdoor cabinet, follow the procedures for working at heights. Maintenance personnel must wear personal protective equipment such as climbing helmets and climbing safety ropes. •...
Page 26 2 Battery Storage System Preventative Maintenance Manual Quantity/ Description Name A 3m A-shaped climb ladder is recommended (outdoor cabinet height: Climb ladder 2600mm, can be reasonably configured based on the height of the foundation). Safety harness Safety helmet Safety gloves Dust mask Protective clothing It is recommended to use metal surface...
Page 27: List Of Consumables
Preventative Maintenance Manual 2 Battery Storage System 2.2.2.2 List of Consumables The following list is for reference only. If any of the consumables listed below are inconsistent with the accessories actually used on site, use the accessories actually used on site. Is it included in the list of Name Material No.
Page 28 2 Battery Storage System Preventative Maintenance Manual figure 2-1 Inspection procedures of appearance check...
Page 29: Inspection Steps (Once A Year)
Preventative Maintenance Manual 2 Battery Storage System 2.2.4 Inspection steps (once a year) Step 1 Check if there are any flammable objects around and on top of the outdoor cabinet. Common flammable materials include, but are not limited to, asphalt felt, wood, paint, plastic products, and decorative or construction materials.
Page 30 2 Battery Storage System Preventative Maintenance Manual Step 2 Check if the welds between the outdoor cabinet and the foundation steel plate are secure and free from rust. Power off the outdoor cabinet, and refer to "2.10.5.1 Power on/off via WEB" for the specific steps.
Page 31 Preventative Maintenance Manual 2 Battery Storage System figure 2-4 Fixing with bolts * The above images are for reference only; please refer to the actual product you received. Check whether the fixing points between the outdoor cabinet and the foundation steel plates are rusted.
Page 32 2 Battery Storage System Preventative Maintenance Manual Step 3 Check if there is any damage, paint peeling, or oxidation on the outdoor cabinet casing. Examine the exterior damage, and choose an appropriate method for repair based on the severity of the damage. Grade I: The dirt on the surface can be wiped out.
Page 33 Preventative Maintenance Manual 2 Battery Storage System * The above images are for reference only; please refer to the actual product you received. Step 4 Check if the door locks can open and close smoothly. If necessary, lubricate the locks and hinges.
Page 34 2 Battery Storage System Preventative Maintenance Manual Step 5 Check if the sealing strips are securely fixed. The sealing strips in good condition is crucial to prevent water ingress inside the outdoor cabinet. Inspect them carefully and replace any damaged seals immediately. Power off the outdoor cabinet, and refer to "2.10.5.1 Power on/off via WEB"...
Page 35: Check System Status And Cleanliness
Preventative Maintenance Manual 2 Battery Storage System Check System Status and Cleanliness 2.3.1 Safety Precautions To ensure continuous fire protection, replacement of internal components can only be carried out by professionals. • Opening the cabinet door to check for abnormal noises in the equipment is not advised.
Page 36: List Of Consumables
2 Battery Storage System Preventative Maintenance Manual Qty./pcs Name Note It is recommended to use metal surface rust remover that effectively removes rust Rust remover without corroding the workpiece material. Sandpaper Soft bristle brush Zinc-rich primer It is recommended to use dry cleaning Dry paper towel/ tools such as dusters and paper towels.
Page 37: Inspection Procedures
Preventative Maintenance Manual 2 Battery Storage System Is it included in the list of delivered Name Material No. spare parts Standard spring washer S-Q-000070 Disc spring washer S-Q-000187 Hexagon flange nut S-B-000085 Class A flat washer S-Q-000059 Dustproof sponge F-T-000349 Montmorillonite desiccant Y-G-000049 Sealing strip...
Page 38 2 Battery Storage System Preventative Maintenance Manual figure 2-8 Procedures of system status and cleanliness inspection (once a year) Once every two years The maintenance takes about 1h.
Page 39: Inspection Steps (Once Every Six To Twelve Months)
Preventative Maintenance Manual 2 Battery Storage System figure 2-9 Procedures of system status and cleanliness inspection (once every two years) 2.3.4 Inspection Steps (Once Every Six to Twelve Months) Step 1 Check the foundation for foreign objects, dust and grime. Visually check the foundation for foreign objects, dust and grime.
Page 40 2 Battery Storage System Preventative Maintenance Manual Step 2 Check the meshes of the outdoor cabinet for dust and grime, and replace air filter meshes if necessary. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the outdoor cabinet doors to check the metal filter meshes on the doors.
Page 41: Inspection Steps (Once A Year)
Preventative Maintenance Manual 2 Battery Storage System 2.3.5 Inspection steps (once a year) Step 1 Check if there is any foreign object, dust, or dirt in the outdoor cabinet. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps.
Page 42 2 Battery Storage System Preventative Maintenance Manual Step 2 Check if the air inlet or the air outlet of the outdoor cabinet is blocked. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the outdoor cabinet doors.
Page 43 Preventative Maintenance Manual 2 Battery Storage System Step 3 Check if there are any loose screws in the outdoor cabinet. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the outdoor cabinet doors.
Page 44 2 Battery Storage System Preventative Maintenance Manual Step 4 Check if there is any water leakage in the outdoor cabinet. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the outdoor cabinet doors.
Page 45 Preventative Maintenance Manual 2 Battery Storage System Step 5 Check for any leakage in the liquid cooling pipeline of the outdoor cabinet. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the outdoor cabinet doors.
Page 46: Inspection Steps (Once Every Two Years)
2 Battery Storage System Preventative Maintenance Manual For the specific coolant addition steps, please refer to “Coolant injection and drainage operation” in Liquid Cooling System Operation and Maintenance Guide - - End 2.3.6 Inspection steps (once every two years) Step 1 Check if there is any damage or deformation to the equipment in the outdoor cabinet. Power off the outdoor cabinet.
Page 47 Preventative Maintenance Manual 2 Battery Storage System Step 2 Check if there is any unusual noise from internal equipment during operation. For this inspection item, it is not recommended to open the cabinet doors. The maintenance personnel should wear a safety helmet and listen for any unusual noises in the vicinity of the outdoor cabinet.
Page 48 2 Battery Storage System Preventative Maintenance Manual Step 3 Check if the temperature inside the outdoor cabinet and on the casing is excessively high. Due to the different rated operating conditions of each device, there is no unified standard for judging temperature rise. You can measure the temperature of multiple systems and then analyze and judge accordingly.
Page 49 Preventative Maintenance Manual 2 Battery Storage System Step 4 Check if the humidity inside the outdoor cabinet is within the normal range. Please wear safety helmets and gloves, and open the outdoor cabinet doors. Use a hygrometer to check if the ambient humidity in the outdoor cabinet is between 0~95 % (non-condensing).
Page 50: Check Cable Connections
2 Battery Storage System Preventative Maintenance Manual Step 5 Check if there are signs of oxidation or rust inside the outdoor cabinet. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, open the outdoor cabinet doors, and visually check if there are signs of rust or oxidation in it.
Page 51: Material Preparation
Preventative Maintenance Manual 2 Battery Storage System • It is essential to check the polarity of all input cables to see if the cable label corresponds to the copper busbar label one-to-one to ensure that each input polarity is correct. •...
Page 52: List Of Consumables
2 Battery Storage System Preventative Maintenance Manual Qty./pcs Name Note Heat gun Heat shrinkable appropriat- bushing e amount 2.4.2.2 List of Consumables The following list is for reference only. If any of the consumables listed below are inconsistent with the accessories actually used on site, use the accessories actually used on site.
Page 53 Preventative Maintenance Manual 2 Battery Storage System figure 2-22 Procedures of cable connection inspection...
Page 54: Inspection Steps (Once A Year)
2 Battery Storage System Preventative Maintenance Manual 2.4.4 Inspection steps (once a year) Step 1 Check if the power cable connections are loose, and re-tighten them according to the specified torque. Check if the power cables are damaged, especially if the insulation layer in contact with metal surfaces has signs of cuts.
Page 55 Preventative Maintenance Manual 2 Battery Storage System figure 2-24 BSP and BCP diagram * The above images are for reference only; please refer to the actual product you received. Check if the communication cables are securely connected. If there is any looseness, please re-secure them.
Page 56 2 Battery Storage System Preventative Maintenance Manual Step 2 Check if the cable layout is standard and check for any short circuits. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the outdoor cabinet doors.
Page 57: Check Grounding And Equipotential Connections
Preventative Maintenance Manual 2 Battery Storage System Step 4 Check if the insulation tape on the power cable terminals has come off. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the outdoor cabinet doors.
Page 58: List Of Consumables
2 Battery Storage System Preventative Maintenance Manual Quantity/ Description Name Multimeter A Phillips screwdriver is recommended. Screwdriver Open-end/socket wrenches are Wrench recommended. Groundmeter 2.5.2.2 List of Consumables The following list is for reference only. If any of the consumables listed below are inconsistent with the accessories actually used on site, use the accessories actually used on site.
Page 59 Preventative Maintenance Manual 2 Battery Storage System figure 2-28 Procedures of grounding and equipotential connection inspection...
Page 60: Inspection Steps (Once A Year)
2 Battery Storage System Preventative Maintenance Manual 2.5.4 Inspection steps (once a year) Step 1 Check if the grounding connection is correct, and ensure the grounding resistance value does not exceed 4Ω. It is recommended to take measurements in different directions to improve the accuracy of the results.
Page 61 Preventative Maintenance Manual 2 Battery Storage System Step 2 Check if the equipotential bonding is correct inside the energy storage system. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the outdoor cabinet doors.
Page 62: Check Components
2.6.1 Safety Precautions It is required to use dry tools such as dry paper towels for cleaning circuit boards and components. Sungrow is not liable for any damage caused by the use of inappropriate tools. It is required to check ventilation of the air inlet. Module overheating may lead to...
Page 63: Material Preparation
Preventative Maintenance Manual 2 Battery Storage System 2.6.2 Material Preparation 2.6.2.1 Tool Preparation To ensure smooth maintenance during the components inspection, it is recommended to prepare the following tools, which include, but are not limited to: Qty./pcs Name Note Safety helmet Safety gloves Dust mask It is recommended to use a 3m-high A-...
Page 64: Inspection Procedures
2 Battery Storage System Preventative Maintenance Manual Name Material No. Is it included in the list of delivered spare parts BCP internal fuse K-T-000461 Micro switch of BCP K-R-000128 internal fuse Lightning protector of K-S-000178 the 3+1 module in BSP 1-unit module lightning K-S-000225 protector...
Page 65 Preventative Maintenance Manual 2 Battery Storage System figure 2-32 Inspection procedures of component maintenance...
Page 66: Inspection Steps (Once Every Six Month To Once A Year)
2 Battery Storage System Preventative Maintenance Manual 2.6.4 Inspection steps (once every six month to once a year) Step 1 Check if there are any foreign objects, dust, or dirt on the circuit board and components. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB"...
Page 67 Preventative Maintenance Manual 2 Battery Storage System Step 2 Check if the temperature of the cooling fan is abnormal and if there are foreign objects, dust and dirt. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps.
Page 68 2 Battery Storage System Preventative Maintenance Manual Step 3 Conduct routine inspection of all metal components for corrosion. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the outdoor cabinet doors.
Page 69 Preventative Maintenance Manual 2 Battery Storage System Step 4 Conduct annual inspection of contactors (auxiliary switches and micro switches) to ensure their smooth mechanical operation. Power off the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the specific steps.
Page 70 2 Battery Storage System Preventative Maintenance Manual Step 5 Check if the lightning protection devices and fuses are intact and operational. Log into the Battery System Controller (BSC) interface. For login steps, please refer to "2.10.1.1 BSC Login Steps". Click and check for any lightning protection/fuse fault alarms.
Page 71 Preventative Maintenance Manual 2 Battery Storage System Step 6 Check the operating status of the fan module, whether it is blocked, and if there are any abnormal noises during operation. Ensure that maintenance personnel wear safety helmets and gloves. While the system is running, check if the fans in each area are operating normally and listen for any unusual noises.
Page 72: Check Functionality
2 Battery Storage System Preventative Maintenance Manual Check Functionality 2.7.1 Safety Precautions After pressing down the emergency stop button, do not touch the battery cabinet because the AC auxiliary power source of the cabinet remains live! During maintenance or shutdown, loss of capacity due to any of the following conditions persisting for more than 120 hours is not covered under the warranty.
Page 73: Inspection Procedures
Preventative Maintenance Manual 2 Battery Storage System Is it included in the list of Name Material No. delivered spare parts Emergency stop switch K-A-000076 Protective cover for the F-Q-001791 emergency stop button Protective cover sealing strip of the emergency F-E-000866 stop button 2.7.3 Inspection Procedures The inspection procedures of functional test are shown in the figure below.
Page 74: Inspection Steps (Once Every Six Month To Once A Year)
2 Battery Storage System Preventative Maintenance Manual 2.7.4 Inspection steps (once every six month to once a year) Step 1 Check the configurable parameters on the Web interface. Log in to the local controller (LC) Web interface. Please refer to "2.10.1.2 LC Login Steps"...
Page 75 Preventative Maintenance Manual 2 Battery Storage System Step 2 Check the battery cluster operation logs to ensure that the current, voltage, and temperature are within the operational range. Log in to the BSC Web interface. Please refer to "2.10.1.1 BSC Login Steps" for the specific steps.
Page 76 2 Battery Storage System Preventative Maintenance Manual Step 3 Safety function - Check if the emergency stop button is functioning correctly. Log in to the local controller (LC) Web interface. Please refer to "2.10.1.2 LC Login Steps" for the specific steps. The maintenance personnel should wear a safety helmet and safety gloves;...
Page 77 Preventative Maintenance Manual 2 Battery Storage System Step 4 Check DCDC operating status. Log in to the BSC Web interface. Please refer to "2.10.1.1 BSC Login Steps" for the specific steps. Click “Running info→DCDC info”, and check if the DCDC is in operation and ensure that the Web interface shows normal operating status.
Page 78: Check The Liquid Cooling System
2 Battery Storage System Preventative Maintenance Manual Step 5 Check the operating status of the liquid cooling unit. Log in to the BSC Web interface. Please refer to "2.10.1.1 BSC Login Steps" for the specific steps. Click “Running info→Sub-device info”, check if the liquid cooling unit is in operation and ensure that the Web interface shows normal operating status.
Page 79: List Of Consumables
Preventative Maintenance Manual 2 Battery Storage System Qty./pcs Name Note Safety helmet Safety gloves Dust mask It is recommended to use a 3m-high A- frame ladder (the outdoor cabinet is Climbing ladder 2600mm high; ladder height should be adjusted based on the foundation height on site).
Page 80: Inspection Steps (Once Every Five To Six Years)
2 Battery Storage System Preventative Maintenance Manual figure 2-40 Inspection procedures of functional test 2.8.4 Inspection steps (once every five to six years) Step 1 Check if the fan blades rotate normally and any fan blade is damaged. If the fan cannot rotate or the blades are damaged, please replace the fan.
Page 81 Preventative Maintenance Manual 2 Battery Storage System figure 2-41 Top cooling fan * The above images are for reference only; please refer to the actual product you received. Power on the liquid cooling system, and set the communication mode to local mode via the liquid cooling system display screen.
Page 82 2 Battery Storage System Preventative Maintenance Manual Control logic Description Item When the heating demand is > Heating demand (%) = (heating 100%, turn on heating. set point [default value 15℃])- Heating actual control temperature/ When the heating demand is ≤ heating sensitivity [default value 0%, stop heating.
Page 83 Preventative Maintenance Manual 2 Battery Storage System Step 2 Check if the dirty and blocked area of the heat emission & air inlet hole of the water pump is above 5%. If it exceeds this threshold, clean it with a brush. Power off the system, remove the mesh cover on the front of the liquid cooling unit, and check if the dirty and blocked area of the heat emission &...
Page 84 2 Battery Storage System Preventative Maintenance Manual Step 3 Visually inspect the water pump body (excluding pipeline connections) for any noticeable dripping (excluding condensation). If there is noticeable dripping, please replace the water pump sealing ring. Power off the system, remove the mesh cover on the front of the liquid cooling unit, and check if there are any dripping phenomena (excluding condensate) on the pump body and water pipeline connections.
Page 85 Preventative Maintenance Manual 2 Battery Storage System Step 4 Check the high and low pressure values of the liquid cooling system through the liquid cooling system display screen, the high pressure should be 2.8 bar and the low pressure should be 0.2bar. If the high pressure is higher than 2.8bar, check the waterpipe system filter for dirty or blockage.
Page 86 2 Battery Storage System Preventative Maintenance Manual The system has an automatic coolant addition function: when there is sufficient coolant in the tank and the return pressure is below 0.3bar, the coolant addition pump will automatically add coolant. You can also manually activate the coolant addition pump through the liquid cooling system display screen for coolant addition.
Page 87: Check The Fire Protection System
Preventative Maintenance Manual 2 Battery Storage System Check the Fire Protection System 2.9.1 Safety Precautions • If there is an obvious fire or even explosion at the scene, it is forbidden to take the risk of approaching the outdoor cabinet for emergency start-up operation. •...
Page 88: List Of Consumables
2 Battery Storage System Preventative Maintenance Manual 2.9.2.2 List of Consumables The following list is for reference only. If any of the consumables listed below are inconsistent with the accessories actually used on site, use the accessories actually used on site. Is it included in the list of delivered spare Name...
Page 89 Preventative Maintenance Manual 2 Battery Storage System figure 2-46 Procedures of fire protection system inspection (once every six to twelve months) Once a year The maintenance takes about 0.5h.
Page 90: Inspection Steps (Once Every Six To Twelve Months)
2 Battery Storage System Preventative Maintenance Manual figure 2-47 Procedures of fire protection system inspection (once a year) 2.9.4 Inspection steps (once every six to twelve months) To ensure the accuracy of the flammable gas detector, the combustible gas detector needs to undergo a functional test every six months. If the detector fails the test, check and calibrate the detector if necessary.
Page 91 Preventative Maintenance Manual 2 Battery Storage System Step 1 Appearance inspection. Carefully inspect exterior of the detector for any signs of impact, damage, or loose front cover to make an initial assessment of its usability. Check the production date and other information of the detector. If the storage time exceeds 1 year, return them to the supplier for resolution.
Page 92 2 Battery Storage System Preventative Maintenance Manual Step 2 Power-on test. After the above visual inspection is passed, apply a direct current of 24V to the detectors. The detector self-checks. After the self-check is passed, the green light of the status indicator is on.
Page 93 Preventative Maintenance Manual 2 Battery Storage System Step 5 Calibration cover installation. Remove front cover. i. Pull down the hanging flat sheet at the bottom to open it. ii. Insert a thin and straight tool (such as a small screwdriver) into the hole on the right side of the remote air inlet port.
Page 94 2 Battery Storage System Preventative Maintenance Manual figure 2-51 Time synchronization Step 7 Zero calibration. Before use, perform zero calibration on detectors showing ±20. Zero calibration does not require gas filling. If a value other than ±20 is displayed at startup, the detector is faulty. Return it to the supplier for resolution.
Page 95 Preventative Maintenance Manual 2 Battery Storage System figure 2-52 Zero calibration Step 8 SPAN calibration. The default factory calibration value is 55% LEL. Decrease the value by clicking - until it is 50% LEL. After modifying the SPAN value, open the gas cylinder pressure relief valve and flow meter, connect the calibration cover, and supply gas to the detector for 3 minutes.
Page 96 2 Battery Storage System Preventative Maintenance Manual After successful calibration, click NEXT to enter the “Purge detector” interface. Step 9 Gas purge. For purging, remove the calibration cover and calibration gas, and leave the detector in the air. After successful purging, the APP displays OK. Click Finish, and the APP will automatically return to the homepage.
Page 97 Preventative Maintenance Manual 2 Battery Storage System Step 10 Readback test after gas supply After successful calibration, establish a Bluetooth connection, install the calibration cover, and test the gas concentration after gas supply for 1 minute. For installation of the calibration cover, refer to step 5. Supply the standard gas at 200-400 ml/min for 1 minute.
Page 98: Inspection Steps (Once A Year)
2 Battery Storage System Preventative Maintenance Manual 2.9.5 Inspection steps (once a year) Step 1 Visual inspection. Visual check the audible and visual alarm (if any). figure 2-54 Audible and visual alarm * The above images are for reference only; please refer to the actual product you received.
Page 99 Preventative Maintenance Manual 2 Battery Storage System figure 2-56 Input/output module * The above images are for reference only; please refer to the actual product you received. Visually check the sprinkler heads. figure 2-57 Sprinkler head * The above images are for reference only; please refer to the actual product you received.
Page 100 2 Battery Storage System Preventative Maintenance Manual figure 2-58 Fire sprinkler piping * The above images are for reference only; please refer to the actual product you received. If any damage or abnormal status indicators of the above devices are found, please promptly request spare parts for replacement.
Page 101: Appendix
Preventative Maintenance Manual 2 Battery Storage System Step 3 Linkage function test. It is necessary to have third-party professional technicians conduct a linkage test on the fire suppression system at least once a year to ensure the stable operation of the fire suppression system. If local fire authorities have other regulations, please follow the legal and regulatory requirements set by the local jurisdiction.
Page 102: Lc Login Steps
Step 3 Input username and password. Click Login. The system features two user roles: operator and administrator. Passwords for user roles should be obtained from Sungrow. Step 4 In the upper right corner of the interface, select the desired language.
Page 103: Connect The Detector Via Bluetooth
The system features two user roles: operator and administrator (admin). The password for the operator role is "1111". Passwords for other roles should be obtained from Sungrow. Step 4 In the upper right corner of the interface, select the desired language.
Page 104 2 Battery Storage System Preventative Maintenance Manual Step 2 Select the sensor that needs to be calibrated based on the SN.
Page 105 Preventative Maintenance Manual 2 Battery Storage System Step 3 Click the Scan QR code button.
Page 106 2 Battery Storage System Preventative Maintenance Manual Step 4 Scan the QR code on the side of the detector.
Page 107 Preventative Maintenance Manual 2 Battery Storage System Step 5 Click Confirm Detector.
Page 108: Prepare Cables
2 Battery Storage System Preventative Maintenance Manual Step 6 The interface below indicates that the phone has been connected to the combustible gas detector. - - End 2.10.3 Prepare Cables The cables must meet the following requirements: • The current carrying capacity of the cable meets requirements. Factors affecting the current carrying capacity of a conductor include but are not limited to: –...
Page 109: Tightening Torques
Preventative Maintenance Manual 2 Battery Storage System • The cables used should comply with requirements of local laws and regulations. • The cable color in figures in this manual is for reference only. Please select cables according to local standards. Crimp terminal Crimp OT/DT terminals Follow the steps shown below to crimp terminal.
Page 110: Powering Up And Shutdown
2 Battery Storage System Preventative Maintenance Manual 2.10.5 Powering up and Shutdown 2.10.5.1 Power on/off via WEB This section is based on the standard interface; actual interfaces may vary, so always refer to the actual interfaces. Step 1 Log into the LC interface. Refer to "2.10.1.2 LC Login Steps"...
Page 111: Power-Up Steps (Dcdc Version)
Preventative Maintenance Manual 2 Battery Storage System Step 3 Power on. Refer to "2.10.5.2 Power-up Steps (DCDC version)" for the steps of powering up the BLOCK. Click “Running info→Summary info” to enter the following interface. Click ON to control the startup of the BLOCK. figure 2-61 LC startup interface - - End 2.10.5.2 Power-up Steps (DCDC version)
Page 112: Powering-Up Procedures (Switch Box Version)
2 Battery Storage System Preventative Maintenance Manual Step 4 Power up the BCP. Turn on the miniature circuit breaker Q1; Complete the BCP power-up operation. Step 5 Power up the BSP. Close the DC load switch QS1 in the BSP. Close the main control switch of the 400Vac power QF1 (AC MAIN SWITCH).
Page 113 Preventative Maintenance Manual 2 Battery Storage System Step 1 Power up LC1000 Close external AC power supply switch QF1 (AC main circuit switch). Close the BSP auxiliary power supply switches QF2~QF3 (1~2# BSP); Close the HVAC supply switch Q1 (HVAC); Close the UPS power supply switch Q2 (UPS) and Press the UPS ON key;...
Page 114: Planned Powering Off (Dcdc Version)
2 Battery Storage System Preventative Maintenance Manual If a circuit breaker trips during the powering-up process, pause closing other circuit breakers and immediately check for short circuits in the lower-level load of the tripped circuit breaker. 2.10.5.4 Planned Powering off (DCDC version) The power-down steps in this manual are for reference only.
Page 115: Planned Shutdown (Switch Gear Version)
Preventative Maintenance Manual 2 Battery Storage System Step 7 Power down the LC1000. Disconnect the power supply switch of the maintenance socket Q10 (MAINTAIN SOCKET). Disconnect the FSS power switch Q6~Q9 (1~4# FSS). Disconnect the FSS smps power switch Q5 (FSS SMPS). Disconnect the FACP power switch Q4 (FACP).
Page 116 2 Battery Storage System Preventative Maintenance Manual Step 6 Shut down LC1000 Disconnect the fire SMPS power supply switch Q7 (FSS SMPS); Disconnect the emergency ventilation system power supply switches Q5~Q6 (1~2# FSS); Disconnect the fire control panel power supply switch Q4 (FACP); Disconnect the 230Vac power supply switch Q3 (AC 230V);...
Page 117: Communication Management Cabinet
Communication Management Cabinet Inspection Checklist The inspection items for the communication management cabinet (LC1000) are listed in the table below. • The recommended maintenance intervals provided below should be adjusted based on the specific environmental conditions where the product is installed. •...
Page 118 3 Communication Management Cabinet Preventative Maintenance Manual Inspection Type Details interval Check for strong electromagnetic interference around the device. Look for heat sources around the unit. Look for corrosive substances around the unit. Check the enclosure of the outdoor cabinet damage, paint loss,...
Page 119 Preventative Maintenance Manual 3 Communication Management Cabinet Inspection Type Details interval Check whether the cable layout complies with standards and are free from problems such as short circuits. If any anomalies are detected, correct them immediately. Check whether all incoming and outgoing cable holes of the outdoor cabinet are well sealed.
Page 120: Check Appearance
3 Communication Management Cabinet Preventative Maintenance Manual Inspection Type Details interval Troubleshoot for unoperated UPSs, which need to be recharged once every six months. Check Appearance 3.2.1 Safety Precautions • When handling corrosive substance, maintenance personnel should wear personal protective equipment. Personal protective equipment should comply with relevant national standards, including but not limited to safety helmets, safety gloves, protective clothing, etc.
Page 121: List Of Consumables
Preventative Maintenance Manual 3 Communication Management Cabinet Qty./pcs Name Note If water alone does not suffice, use any of the following detergents. Alcohol or other non-corrosive • 97% alcohol. detergent • non-corrosive cleaning agent commonly used in the local area. Sandpaper Soft bristle brush Paint...
Page 122 3 Communication Management Cabinet Preventative Maintenance Manual figure 3-1 Inspection procedures of appearance check...
Page 123: Inspection Steps (Once A Year)
Preventative Maintenance Manual 3 Communication Management Cabinet 3.2.4 Inspection Steps (Once a Year) Step 1 Check for strong electromagnetic interference around the device. Wear protective equipment such as helmets, safety gloves, etc., and visually check for strong electromagnetic interference such as transformers and generators around the equipment.
Page 124 3 Communication Management Cabinet Preventative Maintenance Manual Step 4 Check the enclosure of the outdoor cabinet for damage, paint loss, oxidation, etc. Check the cabinet for external damage and select an appropriate repair method based on the severity of the damage. Level 1: Surface dirt that can be wiped away.
Page 125 Preventative Maintenance Manual 3 Communication Management Cabinet * The above pictures are for reference only. The received products may be different! Step 5 Check the cabinet door locks for smooth operation. If necessary, apply appropriate lubricants to door locks, hinges, etc. Wear safety gloves, manually open and close the outdoor cabinet doors to check the locks and hinges for smooth operation.
Page 126: Check System Status And Cleanliness
3 Communication Management Cabinet Preventative Maintenance Manual Step 6 Check whether sealing strips, etc. are securely attached. Properly maintained sealing strips are essential for preventing water ingress into the outdoor cabinet. Inspect them carefully, and replace immediately if any sealing strips are found damaged. Wear safety gloves, open the outdoor cabinet doors to check the sealing strips for cracks, detachment, or significant wear.
Page 127: Material Preparation
Preventative Maintenance Manual 3 Communication Management Cabinet Ventilation of the air intake must be checked. Otherwise, if the module is not cooled effectively, it will fail due to overheating. 3.3.2 Material Preparation 3.3.2.1 Tool Preparation To ensure smooth maintenance during the system condition and cleaning check, it is recommended to prepare the following tools, which include, but are not limited to: Qty./pcs Name...
Page 128: Inspection Procedures
3 Communication Management Cabinet Preventative Maintenance Manual Is it included in the list of delivered Name Material No. spare parts Combination of cross-head recessed hexagon bolt, spring S-Z-000054 washer and flat washer Hexagon head bolts (full thread) S-A-000119 Cross-head countersunk screw S-M-000111 Class A large washer S-Q-000063...
Page 129: Inspection Steps (Once A Year)
Preventative Maintenance Manual 3 Communication Management Cabinet 3.3.4 Inspection Steps (Once a Year) Step 1 Check the interior of the outdoor cabinet for foreign objects, dust and grime. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps.
Page 130 3 Communication Management Cabinet Preventative Maintenance Manual Step 2 Check the air inlet and outlet of the outdoor cabinet for blockages. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the outdoor cabinet doors.
Page 131: Check Cable Connections
Preventative Maintenance Manual 3 Communication Management Cabinet Step 4 Check for any water ingress within the outdoor cabinet. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the outdoor cabinet doors.
Page 132: Material Preparation
3 Communication Management Cabinet Preventative Maintenance Manual When rectifying cables, please comply with the relevant standards or specifications of the country/region where the project is located. 3.4.2 Material Preparation 3.4.2.1 Tool Preparation To ensure smooth maintenance during the cable connection inspection, it is recommended to prepare the following tools, which include, but are not limited to: Qty./pcs Name...
Page 133: Inspection Procedures
Preventative Maintenance Manual 3 Communication Management Cabinet Is it included in the list of Name Material No. delivered spare parts Self-locking nylon Y-G-000062 cable tie Heat shrinkable F-P-000062 bushing Waterproof terminal F-E-000951 3.4.3 Inspection Procedures The procedures of cable connection inspection are shown in the figure below. The maintenance takes about 0.5h.
Page 134 3 Communication Management Cabinet Preventative Maintenance Manual figure 3-7 Procedures of cable connection inspection...
Page 135: Inspection Steps (Once A Year)
Preventative Maintenance Manual 3 Communication Management Cabinet 3.4.4 Inspection Steps (Once a Year) Step 1 Check whether the cable layout complies with standards and are free from problems such as short circuits. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps.
Page 136 3 Communication Management Cabinet Preventative Maintenance Manual Step 2 Check whether all incoming and outgoing cable holes of the outdoor cabinet are well sealed. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the electrical compartment door of the outdoor cabinet.
Page 137 Preventative Maintenance Manual 3 Communication Management Cabinet Step 4 Check the power cables for any damage, particularly for cuts on the surface in contact with metal. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the door of the outdoor cabinet.
Page 138 3 Communication Management Cabinet Preventative Maintenance Manual Step 5 Check the insulating cable ties at power cable connection terminals for detachment. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the door of the outdoor cabinet.
Page 139: Check Grounding And Equipotential Connections
Preventative Maintenance Manual 3 Communication Management Cabinet - - End Check Grounding and Equipotential Connections 3.5.1 Safety Precautions The grounding methods should comply with the local standards and regulations. 3.5.2 Material Preparation 3.5.2.1 Tool Preparation To ensure smooth maintenance during the ground connection inspection, it is recommended to prepare the following tools, which include, but are not limited to: Qty./pcs Name...
Page 140: Inspection Procedures
3 Communication Management Cabinet Preventative Maintenance Manual 3.5.3 Inspection Procedures The procedures of grounding connection are shown in the figure below. The maintenance takes about 10min. figure 3-14 Procedures of grounding connection inspection...
Page 141: Inspection Steps (Once A Year)
Preventative Maintenance Manual 3 Communication Management Cabinet 3.5.4 Inspection Steps (Once a Year) Step 1 Check whether grounding connections are correct. The grounding resistance should not be greater than 4Ω. It is suggested that the measurements should be repeated in different directions to enhance the accuracy of results.
Page 142: Check Components
3 Communication Management Cabinet Preventative Maintenance Manual Step 2 Check whether the cable shielding layers are in good contact with insulation sleeves, and whether the grounding flat-rolled steel is reliably secured. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps.
Page 143: List Of Consumables
Preventative Maintenance Manual 3 Communication Management Cabinet Qty./pcs Name Note Dust mask It is recommended to use an electric Screwdriver screwdriver. It is recommended to use an industrial Industrial vacuum vacuum cleaner with swivel and cleaner directional casters. It is recommended to use lighting tools Flashlight such as flashlights and searchlights.
Page 144: Inspection Procedures
3 Communication Management Cabinet Preventative Maintenance Manual 3.6.3 Inspection Procedures The inspection procedures of component maintenance are shown in the figure below. The maintenance takes about 0.5h. figure 3-17 Inspection procedures of component maintenance 3.6.4 Inspection Steps (Once Every Six to Twelve Months) Step 1 Check to see if the power supply voltage is normal.
Page 145 Preventative Maintenance Manual 3 Communication Management Cabinet Step 2 Routinely check all metal elements for signs of rust. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the outdoor cabinet doors.
Page 146 3 Communication Management Cabinet Preventative Maintenance Manual Step 3 Annually inspect contactors (auxiliary switches and micro switches) to ensure their good mechanical operation. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the outdoor cabinet doors.
Page 147: Appendix
Preventative Maintenance Manual 3 Communication Management Cabinet Step 5 Check the UPS battery for any leakage or deformation. Shut down the outdoor cabinet. Refer to "2.10.5.1 Power on/off via WEB" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the outdoor cabinet doors.
Page 148 Disconnect unnecessary equipment from The UPS appears to be the UPS to eliminate overload problems. overloaded. The UPS detects a high DC Please contact Sungrow. voltage. The UPS detects a low DC Please contact Sungrow. voltage. Please contact Sungrow.
Page 149: Pcs
Inspection Checklist The inspection checklist of the converter is as follows. • The recommended maintenance intervals provided below should be adjusted based on the specific environmental conditions where the product is installed. • Factors such as the scale of the plant, installation location, and on-site environmental conditions will influence the maintenance intervals.
Page 150 4 PCS Preventative Maintenance Manual Inspection Type Details interval Check the surrounding areas and the top of the converter for any flammable materials. Check whether soldering points between converter foundation steel plates are solid, and check for signs of rust. Check the enclosure of the converter for damage, paint loss, oxidation, etc.
Page 151 Preventative Maintenance Manual 4 PCS Inspection Type Details interval Interior cleaning of cabinets: Check if there are any foreign objects, dust and grime in the converter. Remove interior dust if necessary. (- With a vacuum cleaner instead of a broom) Once a year Check the air inlets and outlets of the converter for blockages.
Page 152 4 PCS Preventative Maintenance Manual Inspection Type Details interval Grounding and equipotential connections: Check whether grounding connections are correct. The grounding resistance should not be greater than 4Ω. Check whether equipotential connections inside the conversion Once a year system are correct. Check whether the cable shielding layers are in good contact with insulation sleeves, and whether the...
Page 153: Appearance Inspection
Preventative Maintenance Manual 4 PCS Inspection Type Details interval Software maintenance: View save operating data, parameters, and logs from the WEB Server to relevant files. Once every six Check if all parameter settings are to twelve months within the normal ranges. Check if the software is the latest version and promptly update it if necessary.
Page 154: Material Preparation
4 PCS Preventative Maintenance Manual • The gases emitted by rust removers are flammable; keep them away from high heat, sparks, flames, and static-prone areas. • Rust removers should be used in well-ventilated areas. • For rust removers, avoid contact with skin and eyes and inhalation. If accidental contact or inhalation occurs, seek medical attention immediately.
Page 155: List Of Consumables
Preventative Maintenance Manual 4 PCS Quantity/ Description Name If it cannot be cleaned with water, use the following detergent. Alcohol or other non-corrosive • 97% alcohol. detergents • Non-corrosive detergents commonly used in the region. Sandpaper Soft brush Paint The colour number is RAL9003 Zinc-rich primer Lubricating grease It is recommended to use an industrial...
Page 156 4 PCS Preventative Maintenance Manual figure 4-1 Appearance inspection process...
Page 157: Inspection Steps (Once A Year)
Preventative Maintenance Manual 4 PCS 4.2.4 Inspection Steps (Once a Year) Step 1 Check the surrounding areas and the top of the converter for any flammable materials. Common flammable materials include but are not limited to linoleum, wood, paint, plastics, and decoration and fit-out materials. Wear protective gear such as safety helmets and protective clothing, and visually inspect the area around the converter for any flammable materials.
Page 158 4 PCS Preventative Maintenance Manual Step 2 Check whether soldering points between the converter and the foundation steel plates are solid, and check for signs of rust. Shut down the converter. Refer to "4.7.3.1.2 Power-on operation" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and check whether the fixing points between the converter and the foundation steel plates are solid.
Page 159 Preventative Maintenance Manual 4 PCS figure 4-4 Fixation with bolts * The above pictures are for reference only. The received product may be different! Check the fixation points between the converter and the foundation steel plates for any signs of rust. If rust is detected, remove it using rust remover or sandpaper. Let the surface dry, and then apply paint with a soft bristle brush.
Page 160 4 PCS Preventative Maintenance Manual Step 3 Check the enclosure of the converter for damage, paint loss, oxidation, etc. Check for external damage and select an appropriate repair method based on the severity of the damage. Level 1: Surface dirt that can be wiped away. i.
Page 161 Preventative Maintenance Manual 4 PCS * The above pictures are for reference only. The received product may be different! Step 4 Check the cabinet door locks for smooth operation. If necessary, apply appropriate lubricants to door locks, hinges, etc. Refer to "4.7.2 Open the Cabinet Door"...
Page 162 4 PCS Preventative Maintenance Manual Step 5 Check whether sealing strips, etc. are securely attached. Properly maintained sealing strips are essential for preventing water ingress into the outdoor cabinet. Inspect them carefully, and replace immediately if any sealing strips are found damaged. Shut down the converter.
Page 163: System Status And Cleanliness
Preventative Maintenance Manual 4 PCS - - End System Status and Cleanliness 4.3.1 Safety Precautions To ensure continuous fire protection, replacement of internal components can only be carried out by professionals. • Opening the cabinet door to check for abnormal noises in the equipment is not advised.
Page 164: List Of Consumables
4 PCS Preventative Maintenance Manual Qty./pcs Name Note It is recommended to use metal surface rust remover that effectively removes rust Rust remover without corroding the workpiece material. Sandpaper Soft bristle brush Zinc-rich primer It is recommended to use dry cleaning Dry paper towel/ tools such as dusters and paper towels.
Page 165 Preventative Maintenance Manual 4 PCS figure 4-9 System status and cleaning inspection process (once every two years) Once a year The maintenance takes approximately 0.5h.
Page 166 4 PCS Preventative Maintenance Manual figure 4-10 System status and cleaning inspection process (once every year) Once half a year to once a year The maintenance takes approximately 1h. figure 4-11 System status and cleaning inspection process (once half a year to once a year)
Page 167: Check The System Status (Once Every Two Years)
Preventative Maintenance Manual 4 PCS 4.3.4 Check the system status (once every two years) Step 1 Check if there is any damage or deformation to the devices in the converter. Shut down the converter. Refer to "4.7.3.1.2 Power-on operation"for the specific steps. Maintenance personnel should wear safety helmets and gloves, open the converter cabinet doors, and them visually inspect internal devices.
Page 168 4 PCS Preventative Maintenance Manual Step 2 Check if there is any unusual noise from internal equipment during operation. For this inspection item, it is not recommended to open the cabinet doors. The maintenance personnel should wear a safety helmet and listen for any unusual noises in the vicinity of the converter.
Page 169 Preventative Maintenance Manual 4 PCS Step 3 Check if the temperature inside the converter and on the casing is excessively high. • Due to the different rated operating conditions of each device, there is no unified standard for judging temperature rise. You can measure the temperature of multiple systems and then analyze and judge accordingly.
Page 170 4 PCS Preventative Maintenance Manual figure 4-15 Measure the temperature * The above images are for reference only; please refer to the actual product you received. If an abnormal temperature rise is detected, use a multimeter to measure the voltage or current at the affected area while the system is running to rule out a short circuit.
Page 171 Preventative Maintenance Manual 4 PCS Step 4 Check if the humidity inside the converter is within the normal range. Ambient relative humidity: 0~100%, no condensation. Please wear safety helmets and gloves, and open the converter cabinet doors. To open the doors, please refer to "4.7.2 Open the Cabinet Door".
Page 172 4 PCS Preventative Maintenance Manual Step 5 Check if there are signs of oxidation or rust inside the converter. Shut down the converter. Refer to "4.7.3.1.2 Power-on operation"for the specific steps. Maintenance personnel should wear safety helmets and gloves, open the converter cabinet doors, and visually check if there are signs of rust or oxidation in it.
Page 173 Preventative Maintenance Manual 4 PCS Step 6 Check if there are any loose screws in the converter. Shut down the converter. Refer to "4.7.3.1.2 Power-on operation"for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the converter cabinet doors.
Page 174: Interior Cleaning Of Cabinets (Once A Year)
4 PCS Preventative Maintenance Manual 4.3.5 Interior Cleaning of Cabinets (Once a Year) Step 1 Check if there are any foreign objects, dust and grime in the converter. Shut down the converter. Refer to "4.7.3.1.2 Power-on operation" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the door of the converter cabinet.
Page 175 Preventative Maintenance Manual 4 PCS Step 2 Check the air inlets and outlets of the converter for blockages Shut down the converter. Refer to "4.7.3.1.2 Power-on operation" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the outdoor cabinet doors.
Page 176: Exterior Cleaning Of Cabinets (Once Every Six To Twelve Months)
4 PCS Preventative Maintenance Manual - - End 4.3.6 Exterior Cleaning of Cabinets (Once Every Six to Twelve Months) Step 1 Check the foundation for foreign objects, dust and grime. Visually check the foundation for foreign objects, dust and grime. If significant dust is present, wear a dust mask and use a broom or industrial vacuum cleaner to remove the dust.
Page 177: Check System Connections
Preventative Maintenance Manual 4 PCS Check System Connections 4.4.1 Safety Precautions Dangerous high voltage! Risk of electric shock! • No touching live components! • Ensure both AC and DC sides are de-energized before inspection. • It is necessary to check the polarity of all input cables to ensure that each input polarity is correct.
Page 178: List Of Consumables
4 PCS Preventative Maintenance Manual Quantity/ Description Name Safety helmet Safety gloves Fireproof putty will be hardened when the temperature is low, so it can be heated in Fireproof putty Several 50℃ warm water and then used when it becomes slightly softer. Gland head Several Thermal imager...
Page 179: Inspection Procedures
Preventative Maintenance Manual 4 PCS 4.4.3 Inspection Procedures Check cable connection (once a year) The inspection process of cable connection is shown in the figure below, and the maintenance takes approximately 0.5h. figure 4-22 Cable connection inspection process (once a year) Check the grounding and equipotential bonding (once a year) The inspection process of grounding and equipotential bonding is shown in the figure below, and the maintenance takes approximately 0.5h.
Page 180: Cable Connections (Once A Year)
4 PCS Preventative Maintenance Manual figure 4-23 Grounding and equipotential bonding inspection process (once a year) 4.4.4 Cable Connections (Once a Year) Step 1 Check whether the cable layout complies with standards and are free from problems such as short circuits. Shut down the converter.
Page 181 Preventative Maintenance Manual 4 PCS Step 2 Check whether all incoming and outgoing cable holes of the converter are well sealed. Shut down the converter. Refer to "4.7.3.1.2 Power-on operation" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the doors of the converter unit cabinet, power distribution cabinet, and ring main unit.
Page 182 4 PCS Preventative Maintenance Manual Step 3 Check main circuit cable connections for looseness. Retighten any loose cables according to the specified torque. (Powered off) Shut down the converter. Refer to "4.7.3.1.2 Power-on operation" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the converter cabinet doors and remove sealing plates.
Page 183 Preventative Maintenance Manual 4 PCS Step 4 Check main circuit and control cables for any damage, particularly for cuts on the surface in contact with metal. (Powered off) Shut down the converter. Refer to "4.7.3.1.2 Power-on operation" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the door of the converter cabinet.
Page 184 4 PCS Preventative Maintenance Manual Step 5 Check the insulating cable ties at cable connection terminals for detachment. Shut down the converter. Refer to "4.7.3.1.2 Power-on operation" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and open the door of the converter cabinet.
Page 185: Grounding And Equipotential Connections (Once A Year)
Preventative Maintenance Manual 4 PCS 4.4.5 Grounding and Equipotential Connections (Once a Year) Step 1 Check whether grounding connections are correct. The grounding resistance should not be greater than 4Ω. Shut down the converter. Refer to "4.7.3.1.2 Power-on operation" for the steps. Maintenance personnel should wear safety helmets and safety gloves, and visually check whether the grounding wires or grounding flat-rolled steel connected to the ground points (2) of the converter are damaged or rusted.
Page 186: System Maintenance
4.5.1 Safety Precautions It is required to use dry tools such as dry paper towels for cleaning circuit boards and components. Sungrow is not liable for any damage caused by the use of inappropriate tools. It is required to check ventilation of the air inlet. Module overheating may lead to faults.
Page 187: List Of Consumables
Preventative Maintenance Manual 4 PCS Qty./pcs Name Note It is recommended to use an electric Screwdriver screwdriver. It is recommended to use a duster or other Duster scrubbing tools. It is recommended to use an industrial Industrial vacuum vacuum cleaner with swivel and cleaner directional casters.
Page 188: Inspection Procedures
4 PCS Preventative Maintenance Manual 4.5.3 Inspection Procedures Check component maintenance (once every six months to a year) The inspection process of component maintenance is shown in the figure below, and the maintenance takes approximately 0.5h. figure 4-31 Component maintenance inspection process (once every six months to a year) Check software maintenance (once every six months to a year) The inspection process of component maintenance is shown in the figure below, and the maintenance takes approximately 0.5h.
Page 189 Preventative Maintenance Manual 4 PCS figure 4-32 Software maintenance inspection process (once every six months to a year)
Page 190: Check Component Maintenance (Once Every Six Months To A Year)
4 PCS Preventative Maintenance Manual 4.5.4 Check component maintenance (once every six months to a year) Step 1 Check if there are any foreign objects, dust, or dirt on the circuit board and components. Shut down the converter. Refer to "4.7.3.1.2 Power-on operation"for the specific steps.
Page 191 Preventative Maintenance Manual 4 PCS Step 2 Check if the temperature of the cooling fan is abnormal and if there are foreign objects, dust and dirt. Log into the Web interface. For login steps, please refer to "4.7.1.2 Login Steps". Click to check for any fan fault alarms.
Page 192 4 PCS Preventative Maintenance Manual Step 3 Make routine inspection of all metal parts for corrosion. Shut down the converter. Refer to "4.7.3.1.2 Power-on operation"for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the converter cabinet doors.
Page 193 Preventative Maintenance Manual 4 PCS Step 5 Check if the lightning protection devices and fuses are intact and operational. Shut down the converter. Refer to "4.7.3.1.2 Power-on operation"for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the converter unit cabinet doors.
Page 194 • Check if the temperature sensor is operating normally; if any abnormities are detected, please replace the temperature sensor. • If the fault is not caused by the foregoing reasons and still exists, please contact Sungrow Service. - - End...
Page 195: Software Maintenance (Once Every Six To Twelve Months)
Preventative Maintenance Manual 4 PCS 4.5.5 Software Maintenance (Once Every Six to Twelve Months) Step 1 View and save operating data, parameters, and logs from the WEB Server to relevant files. Obtain the IP address of the corresponding device’s Web interface from the client side. Log into the Web IP, enter the login password pw1111.
Page 196: Functional Inspection
4 PCS Preventative Maintenance Manual Functional Inspection 4.6.1 Safety Precautions After the emergency stop button is pressed, the AC and DC switches inside the PCS will switch off. However, the MV power supply and external power supply will still provide electricity, and the internal auxiliary power supply may carry voltage. Do not touch them! Before starting the system up, make sure the start/stop knob is in the "ON"...
Page 197: Inspection Procedures
Preventative Maintenance Manual 4 PCS Is it included in the ex- Name Material No. factory spare parts list? L-E-000010 DC indicator L-E-000024 L-E-000025 Label components B-Q-003904 4.6.3 Inspection Procedures The function inspection process is shown in the figure below, and the maintenance takes approximately 1h.
Page 198: Check Safety Functions (Once Every Six Months To A Year)
4 PCS Preventative Maintenance Manual 4.6.4 Check safety functions (once every six months to a year) Step 1 Safety function - Check if the emergency stop button is functioning correctly. Do not inspect the emergency stop button during high-power operation of the devices to avoid hardware damage.
Page 199: Appendix
Preventative Maintenance Manual 4 PCS Appendix 4.7.1 Web login 4.7.1.1 Running Environment Requirements Item Parameter Browser Chrome 65 above Min. resolution 1024 x 768 4.7.1.2 Login Steps Step 1 Connect the PC to the ETH2 port of the converter via a network cable. Step 2 Configure the IP of the PC and the IP of the ETH2 port with the same network segment.
Page 200: Open The Cabinet Door
4 PCS Preventative Maintenance Manual 4.7.2 Open the Cabinet Door Step 1 Open the cabinet door Cylindrical lock unlocking Turn the key to rotate the door lock arrow to the " " position, then open the cabinet door. Door lock unlocking of the ring main unit Use the dedicated key to unlock the cabinet door lock in the key box of the ring main unit.
Page 201: Powering Up And Shutdown
Preventative Maintenance Manual 4 PCS Step 2 Secure the cabinet door; Raise the limiting rod. When the double-headed bolt slides into the hoist hole (Figure B), se- cure the cabinet door. figure 4-39 Cabinet door securing operation The pictures are for reference only. The received product may be different! - - End 4.7.3 Powering up and Shutdown 4.7.3.1 Starting...
Page 202 4 PCS Preventative Maintenance Manual 4.7.3.1.1 Inspection Before starting After the maintenance or service work, you may start the PCS. Inspect the following requirement before starting the PCS: • All connections are done by strictly following the installation manual and circuit diagram. •...
Page 203 Preventative Maintenance Manual 4 PCS 4.7.3.1.2 Power-on operation If all tests and measurements have been performed and all measurements are within acceptable ranges, you can turn on the device for the first time. After the above conditions are met, start the converter as follows: Step 1 Power up the ring main unit: Operating steps of unit C Please ensure coordination between this level switch and the next level switch.
Page 204 4 PCS Preventative Maintenance Manual Step 3 Power up the converter unit: Confirm that the converter DC load switch QS1 and AC circuit breaker QF1 are disconnected. Close the internal power supply switch Q3 or the external power supply switch Q2 according to the actual configuration on site.
Page 205: Stopping Pcs
Preventative Maintenance Manual 4 PCS • SC4000UD-MV: 1150V - 1500V • SC4000UD-MV: 1300V - 1500V When the converter control circuit is operating normally, wait for the POWER indicator on the monitoring window to light up. Then, open the Web page, go to "Operating parameters,"...
Page 206 4 PCS Preventative Maintenance Manual 4.7.3.2.1 Normal power-off During normal maintenance or overhaul, follow the following procedures: Step Power converter web. Click “Device Monitoring→Device Commands→Power Off” to execute the power-off command. Step 2 Turn off the switches on the DC side and AC side, as well as the auxiliary power supply switches.
Page 207: Prepare Cables
Preventative Maintenance Manual 4 PCS 4.7.3.2.2 Stop in Case of Fault or Emergency Proceed as follows to stop the PCS when a fault or emergency occurs: Step 1 Press the emergency stop button. Step 2 Disconnect the DC and AC switches. Step 3 Disconnect the downstream switches of the PCS.
Page 208: Tightening Torques
4 PCS Preventative Maintenance Manual • The cables used should comply with requirements of local laws and regulations. • The cable color in figures in this manual is for reference only. Please select cables according to local standards. Crimp terminal Crimp OT/DT terminals Follow the steps shown below to crimp terminal.
Page 209: Transformer
Transformer Warning! Before removing any cover, make sure that there is no voltage! Inspection Checklist The inspection checklist of the transformer is as follows. • The recommended maintenance intervals provided below should be adjusted based on the specific environmental conditions where the product is installed. •...
Page 210: Material Preparation
5 Transformer Preventative Maintenance Manual Inspection Type Details interval Check the web interface for any fault alarms of the pressure relief valve, oil thermometer, gas relay, oil level gauge, etc. Check if the panel indications of Transformer pressure relief valve, oil thermometer, gas relay and oil level gauge are within Once a year protection...
Page 211: List Of Consumables
Preventative Maintenance Manual 5 Transformer Quantity/ Description Name Dry paper towels/ It is recommended to use dry cleaning dry cloth tools such as cloths or paper towels. If it cannot be cleaned with water, use the following detergent. Alcohol or other non-corrosive •...
Page 212: Inspection Procedures
5 Transformer Preventative Maintenance Manual Is it included in the ex- Name Material No. factory spare parts list? Washer Heat shrinkable tube Inspection Procedures The transformer inspection process is shown in the figure below, and the maintenance takes approximately 1h. figure 5-1 Transformer inspection process (once a year) Check the External Condition of the Transformer The following inspection operations only require a visual assessment of the transformer and...
Page 213 In case of oil leakage, promptly take photographs to document the oil leakage, and contact Sungrow. Step 2 Check whether the operating temperature is normal. View the historical highest temperature and operating temperature of the temperature controller, and take photos for records.
Page 214 5 Transformer Preventative Maintenance Manual Step 4 Check for external corrosion. Check the radiating fins of the transformer, the surface of the oil tank and various accessories for visible rust or damage caused by rust. If rust is present, take photos for records, remove the rust in time and take follow-up anti-corrosion measures.
Page 215: Check Cable Connections
① Visually check the cover plate for any missing screws. If any screws are missing, contact Sungrow promptly. ② Use a wrench or screwdriver to check whether screws for looseness. If any screws are loose, tighten them promptly.
Page 216 5 Transformer Preventative Maintenance Manual Step 1 Check electrical connections. Power down the inverter to stop its operation. Open the terminal box of the transformer, check whether the connections of the XZ8 and XZ5 terminal block on the SCU and the XT1 terminal block of the transformer are intact. Open the cabinet door of the high-voltage cable room in transformer.
Page 217: Check The Transformer Protection Status
Preventative Maintenance Manual 5 Transformer Check the Transformer Protection Status Step 1 Check the web interface for any fault alarms of the pressure relief valve, oil thermometer, gas relay, oil level gauge, etc. Log in to the LC Web interface. Please refer to "2.10.1.2 LC Login Steps"...
Page 218 When the pressure inside the tank decreases, the pressure relief valve will automatically close to keep the tank sealed. If abnormalities are observed, please contact a field service engineer from Sungrow for resolution. figure 5-6 Pressure relief valve The value indicated by transformer oil thermometer should be close to the ambient temperature.
Page 219 If the above situation occurs, please take a photo and contact Sungrow. figure 5-9 Oil level gauge and oil level curve sign Step 3 Check if the transformer breather is discolored.
Page 220: Check The Grounding Status
If the above situation occurs, please take a photo and contact Sungrow. figure 5-11 Oil thermometer - - End...
Page 221: Ring Main Unit
Ring Main Unit Inspection Checklist The inspection checklist of the ring main unit is as follows. • The recommended maintenance intervals provided below should be adjusted based on the specific environmental conditions where the product is installed. • Factors such as the scale of the plant, installation location, and on-site environmental conditions will influence the maintenance intervals.
Page 222: Material Preparation
6 Ring Main Unit Preventative Maintenance Manual Material Preparation 6.2.1 Tool Preparation When conducting the ring main unit inspection, to ensure the maintenance work proceeds smoothly, it is recommended to prepare tools including but not limited to the following: Quantity/ Description Name Safety helmet...
Page 223: List Of Consumables
Preventative Maintenance Manual 6 Ring Main Unit Quantity/ Description Name Fireproof putty will be hardened when the temperature is low, so it can be heated in Fireproof putty Several 50℃ warm water and then used when it becomes slightly softer. Thermal imager Infrared thermal imager is recommended.
Page 224: Check Cleanliness
6 Ring Main Unit Preventative Maintenance Manual figure 6-1 Ring main unit inspection process (once a year) Check Cleanliness Step 1 Check the RMU internally for dust and check for any water stains or condensation. Before performing maintenance, please first disconnect the grid-side switch; oth- erwise, the upper part of the circuit breaker may still be live with high voltage! Power off the CBU to ensure that the ring main unit is not electrified.
Page 225: Check Cable Connections
Preventative Maintenance Manual 6 Ring Main Unit - - End Check Cable Connections...
Page 226 6 Ring Main Unit Preventative Maintenance Manual Step 1 Check electrical connections. Power down the inverter to stop its operation. Open the door of the high voltage chamber. The inside of the ring main unit is shown in the figure below. Use the operating handle to disconnect the circuit breaker of the ring main unit, turn off the disconnecting switch, and close the grounding switch.
Page 227 Preventative Maintenance Manual 6 Ring Main Unit figure 6-2 SCU terminal block figure 6-3 XSG terminal block Open the cabinet door of the high-voltage cable room in the ring main unit. Check whether the cable connectors (as shown in Figure A below) are connected properly, whether there is any skew, whether the cable clamps (as shown in Figure B below) can securely clamp the cables (as shown in Figure C below), and whether the bolts are fastened without loosening.
Page 228 6 Ring Main Unit Preventative Maintenance Manual After inspection, close the cabinet doors. Step 2 Check the grounding connections. Use the appropriate wrench or screwdriver to check for loosening of the grounding cable fixing screws. Tighten any loose screws promptly. Gently pull the grounding cables to check whether the cable lugs are secure.
Page 229: Check Switch Function
Preventative Maintenance Manual 6 Ring Main Unit Check Switch Function Before performing maintenance, ensure that the grounding switches in each cabi- net are closed. Check whether the grounding switch and load switch of the ring main unit function normally. While the inverter and ring main unit are powered off: Step 1 Check whether the AC-side circuit breaker of the inverter can be turned off.
Page 230: Foundation
Foundation Material Preparation 7.1.1 Tool Preparation When conducting foundation inspection, to ensure the maintenance work proceeds smoothly, it is recommended to prepare tools including but not limited to the following: Quantity/ Description Name Level — Cushion block Safety helmet Safety gloves Torque wrench Angle ruler 7.1.2 List of Consumables...
Page 231: Check The Foundation Structure
Preventative Maintenance Manual 7 Foundation figure 7-1 Function inspection process Check the Foundation Structure Step 1 Visually check the foundation for any noticeable cracks, tilting, or settling. If the foundation shows deformation, promptly carry out repairs. Step 2 Visually check the concrete foundation for any damage or paint peeling. If there is damage or peeling, promptly perform paint repair.
Page 232: Check Product Fixation
Step 2 Visually observe or use tools such as a hammer to lightly tap the embedded expansion bolts or chemical bolts to determine if they are loose. If looseness is found, contact the SUNGROW.
Page 233 Preventative Maintenance Manual 7 Foundation Step 3 Use the angle ruler to check whether L-shaped steel is installed horizontally. If any L-shaped steel is installed incorrectly, reinstall it. Step 4 Check whether the embedded channel steel of the foundation is securely soldered to the container.
Page 235 Abbreviations Complete designation Abbreviations Battery Connection Panel Battery Supply Panel BM (also referred to as PACK) Battery Module BC (also referred to as RACK) Battery Cluster Battery System Controller DCDC DCDC Converter Electric Safety Equipment Local Controller Power Conversion System Personal Protective Equipment State Of Charge *Unless otherwise specified, devices in this manual are referred to as the abbreviations...
Page 236 Sungrow Power Supply Co., Ltd. www.sungrowpower.com...

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