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No.

Fault name

Common causes

Corrective measures

DC/DC

inductor

current 5

overcurrent

Inductive current 5

overcurrent.

Same as 15

DC/DC

inductor

current 6

overcurrent

Inductive current 6

overcurrent.

Same as 14

DC/DC

inductor

current

imbalance1

The current of the DC/DC

inductor current 1 is

unbalanced, and the

hardware is abnormal.

Power off and restart, if the fault

persists, replace the power board.

DC/DC

inductor

current

imbalance2

The current of the DC/DC

inductor current 2 is

unbalanced, and the

hardware is abnormal.

Power off and restart, if the fault

persists, replace the power board.

DC/DC

inductor

current

imbalance3

The current of the DC/DC

inductor current 3 is

unbalanced, and the

hardware is abnormal.

Power off and restart, if the fault

persists, replace the power board.

Battery

contactor

failure

Based on the detection

logic, the relay is judged to

be either broken or short-

circuited (the voltage

difference between the

internal and external

sampling voltage exceeds

30V).

•

Check

the

contactor

operating:

replace

the

contactor.

•

Is the wiring correct.

•

Is the 12V supply normal and
the slow start MOS board:
replace the control board.

•

Test the power board BAT +
and BAT- for a short circuit:
Replace the power board.

5 Troubleshooting

Operation & Maintenance Instruction

Содержание ST2752UX

Страница 1: ...torage SystemsOperation Maintenance InstructionLiquid cooling ESS O M Instruction OEN Ver11 202208 Operation Maintenance Instruction Liquid cooling Energy Storage Systems Liquid cooling ESS O M Instru...

Страница 2: ......

Страница 3: ...this manual are owned by SUNGROW All other trademarks or registered trademarks mentioned in this manual are owned by their respective owners Software Licenses It is prohibited to use data contained i...

Страница 4: ...be a result of product version upgrade and the actual product shall prevail Contents of the manual may be updated and amended continuously so it is possible that there may be some errors or slight inc...

Страница 5: ...lectric shock by touching it This symbol indicates a protective ground terminal which needs to be firmly grounded to ensure the safety of operators Read the instructions before performing any operatio...

Страница 6: ...ry Supply Panel BSP Power Conversion System PCS DC DC Converter DC DC Fire Suppression System FSS Supervisory Control And Data Acquisition SCADA Liquid Cooling System LCS Local Controller LC Energy Ma...

Страница 7: ...V Unless otherwise specified devices in this manual are referred to as the abbreviations above...

Страница 8: ......

Страница 9: ...eriod 7 3 2 1 Maintenance Every two years 7 3 2 2 Maintenance Once a year 7 3 2 3 Maintenance Every half a year to once a year 8 3 3 Maintenance of Liquid Cooling System 9 3 4 Container Maintenance 11...

Страница 10: ...ose the Valves of the Branch Lines on Both Sides 35 4 2 3 Connecting The Drainage Pipe 36 4 2 4 Tool Description 36 4 2 5 Replace the Faulty Pack 37 4 2 6 Operation after Pack Replacement 46 4 3 BMU R...

Страница 11: ...ltage transformers DC DC converters BCP BSP batteries battery management systems energy management systems local controllers etc The auxiliary systems mainly consist of LCS FSS lighting systems etc fi...

Страница 12: ...in the cooling ducts Confirm that the PCS DC side is correctly connected to the BCP DC side cable of the BESS to avoid a reversal of the connection cable order The guard inside the unit is securely mo...

Страница 13: ...s settings in the two BESSs conflict first disconnect the network cable from the BESS to the LC1000 cabinet and re assign the device addresses according to the site address assignment requirements For...

Страница 14: ...r is on select the operation mode and operation parameters on the web operation parameter interface as required For specific steps please refer to the PCS manual configured for the specific project En...

Страница 15: ...current and device temperature rise parameters step 4 Set a battery SOC upper limit value charge with the actual maximum power that can be charged and observe that when the set SOC upper limit value i...

Страница 16: ...ng Avoid opening the container door when the humidity is high in rain snow or fog and make sure that the seals around the container door do not curl when the door is closed In fair weather it is recom...

Страница 17: ...shielding layer is in good contact with the insulation sleeve and whether the copper bus bar is firmly fixed Surge protection device and fuse Check whether the SPD and fuse are properly fastened Corr...

Страница 18: ...especially if the surface contacting the metal surface is cut Check whether the insulation tapes on the power cable terminals fall off Ground connection and equipotential connection Check whether the...

Страница 19: ...half a year Check the contactors auxiliary switches and micro switches annually to ensure the good mechanical operation Check the running parameters especially voltage and insulation 3 3 Maintenance...

Страница 20: ...he water pump runs smoothly without abnormal noise 2 There is no obvious dripping on the pump body except condensate Brush Water system Check the high and low pressure of the water system through HMI...

Страница 21: ...se material is exposed Maintenance Steps for Case 1 Material Cleaning cloth Water Alcohol or other non corrosive detergent Graphics Description 1 Wet the cleaning cloth or other scrubbing tools with w...

Страница 22: ...or 97 alcohol and scrub the damaged parts to remove surface stains 3 Perform paint repair for the scratched parts with a soft brush after the surface is dried brush the paint as uniform as possible Ma...

Страница 23: ...zinc primer for protection after drying of the surface Ensure to spray to cover the bare base material completely 4 Perform paint repair for the damaged parts with soft brush after the primer is drie...

Страница 24: ...Below is the recommended maintenance cycle The actual maintenance cycle should be adjusted according to the specific installation environment of this product The power station scale installation loca...

Страница 25: ...r is too high Check whether the internal humidity and dust of the battery cluster are within the normal ranges If necessary clean the battery cluster Check whether the air inlet and outlet of the batt...

Страница 26: ...n take corrective actions immediately Check the cable layout for short circuit and compliance with the specifications If case of any abnormality take corrective actions immediately Check whether all w...

Страница 27: ...e assuming their work 2 Follow relevant safety precautions use necessary tools and wear personal protective equipment 3 Do not wear metal accessories such as jewelry or watches 4 Never touch the high...

Страница 28: ...the PACK for ageing damage and missing 8 Regularly check cables for loosening ageing damage and fracture and inspect whether the insulation is in good conditions 9 Regularly check the battery cabinet...

Страница 29: ...ide the AC and DC cabinet To avoid the risk of electric shock before opening the cabinet door Disconnect the switches Disconnect the upstream and downstream switches of the PCS Wait at least 5 minutes...

Страница 30: ...t The equipment may be damaged by overheating Every six months System cleaning Check whether the circuit board and the component are clean Check the temperature and dust of the heat sink Use pressuriz...

Страница 31: ...ents Annually check the contactors auxiliary switches and micro switches to ensure the optimal operation Check the running parameters Voltage and insulation especially From every six months to annuall...

Страница 32: ...e safety instructions carefully 2 Open the cabinet door 3 Check the air filter If it needs to be replaced remove it with a screwdriver Please notice the direction of the filter cotton 4 Check the cabi...

Страница 33: ...her than SUNGROW the customer must contact SUNGROW s after sales technology for on site support so as to quickly restore the energy storage system after the successful completion of the test 3 7 2 Vis...

Страница 34: ...connected to the test host the combustible gas detector is energised and the equipment status is qualified as follows The combustible gas detector indicator flashes green intermittently The smoke and...

Страница 35: ...ost computer linkage The fire mainframe displays the fire alarm information Observe the BSC control system shutdown procedure iii Aim the temperature gun at the smoke detector to trigger the temperatu...

Страница 36: ...r pump hose hose clamp slotted screwdriver Note Please contact Sungrow Customer Service to replace hardware facilities Coolant PH Value Test step 1 Power down the system Open the door of the power dis...

Страница 37: ...with limited cognitive and coordination ability are not allowed to operate maintain clean the device or use it as a toy It is forbidden to install or remove the power cord with power Please turn off...

Страница 38: ...alves V1 and V2 to fill and drain the coolant in the whole system Open the door of the chiller to maintain the internal replenishment tank as shown below Battery Cabinet A battery cabinet contains 3 c...

Страница 39: ...ing and drainage kit consists of a handle a pressure gauge a drain valve a water pump switch a power indicator a water pump indicator a power cord storage compartment and a pipe storage compartment fi...

Страница 40: ...2 Weight 10kg 3 Rated voltage 24V DC 4 Load current 4A 5 Power 96W 6 Flow 12L min 7 Head 2 5m 8 Other functions Non return design The pipe storage compartment can also store the matched drainage pipe...

Страница 41: ...End 4 1 5 2 System Drainage When replacing the entire system coolant or replacing a large number of pack modules the entire system needs to be drained step 1 Turn off the system circuit breaker in the...

Страница 42: ...pare the coolant filling kit and coolant step 2 Open the chiller cabinet door use a screwdriver to remove the 6 M6 screws on the plate under the chiller and remove the plate step 3 Remove the plug at...

Страница 43: ...ill the system after system drainage step 15 When the Inp on the chiller display screen reaches 1 20Bar switch off the kit step 16 Close the ball valve V1 at the system coolant filling port step 17 Op...

Страница 44: ...stem filling port step 32 Open the door of the chiller Open the lid of the chiller replenishment tank Align the quick joining piping joint of the coolant filling pipe with the coolant filling port of...

Страница 45: ...ore connecting the power Protective measures must be taken during electrical maintenance such as wearing insulating gloves or insulating shoes Cable removal 1 Remove the communication cable connecting...

Страница 46: ...ve and the other end of the tube is inserted into a pre prepared liquid collection bucket for temporary storage and re use figure 4 3 Pin fixing at the bottom of the valve figure 4 4 Temporary liquid...

Страница 47: ...are complete the crane is in place the cushion wood cushion block is prepared as required on site and whether the personal protective equipment is well worn Power down the system pull out the power s...

Страница 48: ...shown in the figure below step 2 Hoist to move the platform and land it in front of the door The distance between the platform and the container should be 5 10 cm as shown in the following figure 4 Co...

Страница 49: ...t supports 1 The product weighs about 500 kg and the battery Pack weighs about 400 kg If the ground is not compact enough cannot provide sufficient support accessories such as steel plates or crosstie...

Страница 50: ...t suggestions for various non level conditions i If the platform surface is low on the left and high on the right raise left support 1 or lower right support 1 ii If the platform surface is high on th...

Страница 51: ...face is low at the front and high at the back raise left support 1 and right support 1 and lower left support 2 and right support 2 step 5 Height Adjustment Pedal the lifting descending structure to r...

Страница 52: ...container check from the side whether the distance between the bottom of the Pack and the platform surface is appropriate 3 Slightly adjust the height of the platform surface to ensure that the first...

Страница 53: ...orm sinks At this time the platform surface should be lifted by 5 8 mm to facilitate pulling out the Pack Phase 2 Medium stage of platform bearing As the Pack is pulled out the bottom of the front end...

Страница 54: ...to lift and move the Pack The PACK shall not be lifted by 1 5m higher than the ground to avoid falling step 8 Push in a new PACK 1 Status confirmation After the new PACK is landed on the platform sur...

Страница 55: ...old Pack is pulled out At the initial stage the platform surface should be 1 cm recommended higher than the corresponding rail as shown below raise left support 1 and right support 1 Initial stage The...

Страница 56: ...anual of the project configuration Conduct cable wiring pipe connection commissioning and other operations according to the requirements in the Coolant Filling and Drainage Operations 4 3 BMU Replacem...

Страница 57: ...board fixing bolts and re install the front cover plate taking care to check that the cover plate is sealed tightly End 4 4 Fuse Replacement step 1 Removing the connection plugs unlock the plugs and r...

Страница 58: ...After replacing the faulty fuse reinstall the fuse in the reverse order of the above and plug in the connection to the battery pack tightly End 4 Common Maintenance Operations Operation Maintenance In...

Страница 59: ...e contact SUNGROW It would be helpful if the following information is provided during a call Model and S N of the Turnkey Station and internal equipment A brief description of the fault A relevant pho...

Страница 60: ...l exists please contact SUNGROW DC over voltage 1 If the bus voltage is higher than 1650V for 184us the machine will stop for protection 2 The busbar voltage is higher than the set over voltage value...

Страница 61: ...nect to the grid when the grid returns to normal 1 Measure the actual grid voltage If the grid voltage is lower than the set value please contact the power company 2 Check whether the app protection p...

Страница 62: ...ng protection value of level 1 5 for longer than the under frequency protection set duration In off grid mode Enable the AC under frequency function only after the output voltage is stable The protect...

Страница 63: ...id frequency returns to normal 1 Measure the actual grid frequency If the grid voltage is higher than the set value please contact the power company 2 Check whether the app protection parameters are c...

Страница 64: ...l If the fault persists please contact SUNGROW to manually power down the machine and clear the fault Module Over temperature The maximum temperature of IGBT module is higher than 92 over 5s The maxim...

Страница 65: ...her the machine is exposed to direct sunlight Shield it if so 4 Check whether the fan is running properly Replace the fan if necessary 5 If the fault is not caused by the foregoing reasons and still e...

Страница 66: ...is not caused by the foregoing reasons and still exists please contact SUNGROW Overload Protection 1 Three phase AC output is 1 25 times larger than the rated current 2 Or the load is 1 3 times larger...

Страница 67: ...n of this fault disappears continuously for 10s without other faults 1 Inspecting the fan of the inverter To check the fan shut down the inverter disconnect the power supply and remove any foreign par...

Страница 68: ...r than 73 for 40ms The ambient temperature is lower than 50 and the DC cabinet temperature is lower than 65 for 200ms Generally the machine will reconnect to the grid when the internal temperature ret...

Страница 69: ...List No Fault name Common causes Corrective measures 1 Cell over voltage faults Single cell voltage consistently exceeds set fault threshold Check that the BSC parameters are set correctly Check for a...

Страница 70: ...7 Low temperature failure of the battery cell Continuous charging or discharging of the battery at temperatures below the set failure threshold at low temperatures Check that the liquid cooled unit is...

Страница 71: ...it is damaged Check that the sampling line is not dislodged Check that the temperature sensing has not failed 13 CMU BMU communica tion failure The communication cable is disconnected and the BMU is d...

Страница 72: ...mpling line in the switch is not loose If none of the above are abnormal please replace the DCDC table 5 2 CMU Alarm List No Alarm name Common causes Corrective measures 1 Cell overvoltage alarm Singl...

Страница 73: ...ally Check that the BSC parameters are set correctly Check for abnormal cell voltage Check the voltage sampling line for abnormalities 5 PACK under voltage alarm PACK voltage consistently below set al...

Страница 74: ...for unbalanced batteries Check the BMU slave for abnormalities replace it Check for abnormalities in the battery cells Check that the voltage sampling cable is not disconnected 9 PACK voltage differen...

Страница 75: ...reater than set alarm threshold Whether RACK unbalance first installation unbalance system standby rest 24 hours Does the alarm occur when the discharge SOC is low and disappears automatically when th...

Страница 76: ...are connected Check that the BSC and LC addresses are configured correctly 4 Fault in the low voltage supply circuit An abnormality was detected in the low voltage supply circuit Check that the power...

Страница 77: ...alarms PCS branch fuse abnormal Check the PCS fuse for damage Check whether the DCDC current sampling is abnormal Check whether the DCDC bus voltage collection is abnormal 7 System water shortage ala...

Страница 78: ...r has not failed Check the water inlet pressure sensor wiring for looseness and ageing Confirm whether the refrigerant is missing under the manufacturer s guidance The corrective measures mentioned ab...

Страница 79: ...l BSC under the system Check if the LC configuration IP address matches the actual device 3 BSC Fault One or more BSC failures Troubleshoot BSC fault points and perform troubleshooting based on BSC fa...

Страница 80: ...sional solutions 5 3 4 FSS Fault List table 5 7 FSS Fault List No Fault name Common causes Corrective measures 1 Module invalid answer The modules or detectors do not respond or these devices do not w...

Страница 81: ...es 6 External power failure The external power supply to the control module is powered down Check if there is a DC power disconnection if there is a power line error 7 Module open circuit Module open...

Страница 82: ...tart in Refrigeration fault repair Faulty control board replace control board Fan failure replace fan Worn fan bearings replace fan The fan blades scrape other objects check for interference with the...

Страница 83: ...stem does not circulate properly Without power on standby check the main power switch and check the operating display screen that it is switched on Loose circuit connections tighten circuit connectors...

Страница 84: ...repair and refill 2 1 Condensing pressure too high alarm 2 Condensing pressure too high alarm The condenser is severely dirty and clogged The ambient temperature is too high Too much refrigerant Flush...

Страница 85: ...ct the refill kit for refilling 7 Water high temperature alarm Malfunction of compressor electronic expansion valve circulating water pump or fan Coolant leaks Check the status of the compressor elect...

Страница 86: ...sensor failure Condensation temperature sensor failure Exhaust temperature sensor failure The electrical control wiring of the temperature sensor is loose or the cable is damaged Temperature sensor f...

Страница 87: ...amaged cable The condenser is severely dirty and clogged The return air outlet is clogged with debris The fan is disconnected or working abnormally Check the ambient temperature Tighten the electric c...

Страница 88: ...r replace the fan when it is not due to a power outage 17 1 Low voltage lockout 2 Low voltage lockout Refrigerant leaks The electronic expansion valve is working abnormally Check for leaks and repleni...

Страница 89: ...ge difference between the inside and outside voltage exceeds 30V and is maintained for 30s Check that the control board terminals are well connected if they are it may be a problem with the contactor...

Страница 90: ...t both ends of the battery meets the requirements Check that the sampling wire from the battery filter board to the control board is not disconnected Confirm that it is not for the above reasons consi...

Страница 91: ...ider whether the IGBT module is straight through suggest replacing the main power board confirm that it is not the above reason consider driving abnormality check whether the wiring between the contro...

Страница 92: ...pling line abnormal and recommend replacing the control board 10 High busbar voltage The average value of the busbar voltage in the machine is higher than the protection value The machine will normall...

Страница 93: ...that the main power board be replaced 12 Software version mismatch fault The machine dipswitch does not match the set model If the fault occurs repeatedly check whether the DIP switch of the machine...

Страница 94: ...C DC inductor current 6 overcurrent at the same time may be inductor inductance is too small resulting in ripple is large to exceed the inductor current threshold then consider replacing the inductor...

Страница 95: ...perating in constant voltage mode and the system power allocation is greater than the maximum power of the machine and suggest a reasonable power allocation Confirmation of non above reasons consider...

Страница 96: ...and restart if the fault persists replace the power board 22 DC DC inductor current imbalance3 The current of the DC DC inductor current 3 is unbalanced and the hardware is abnormal Power off and res...

Страница 97: ...ge exceeds 150V Reboot the appliance if the fault persists Battery side full bus short Battery side module straight through Replace power board Confirm that it is not for the above reasons and the fau...

Страница 98: ...ardware failure Caused by a hardware protection signal being detected Causes are battery overcurrent busbar overcurrent busbar overvoltage battery overvoltage CPLD abnormality inductor overcurrent con...

Страница 99: ...ace where it can be easily ventilated Check that the machine is not in direct light if so please shade it appropriately Check that the fan is running properly if not replace the fan Confirm that it is...

Страница 100: ...mer Service to confirm that the fault is not due to the above reasons and that the fault still exists 32 Analogue bias exception The bias value of the channel sample exceeds the theoretical reference...

Страница 101: ...ease replace the core board if normal re burning program if still can not solve consider the ring temperature sampling abnormal need to replace the control board 35 Battery polarity reversed In the no...

Страница 102: ...bjects and replace the fan if it is damaged The corrective measures mentioned above are for reference only In case of any fault please contact the Customer Service Center of SUNGROW for professional s...

Страница 103: ...The free warranty period for the whole machine components has expired The device is damaged during transport The device is incorrectly installed refitted or used The device operates in harsh condition...

Страница 104: ...he device Serial number of the device Fault code name Brief description of the problem For detailed contact information please visit https en sungrowpower com contactUS 6 Appendix Operation Maintenanc...

Страница 105: ...www sungrowpower com Sungrow Power Supply Co Ltd...

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