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WeCo - HeSU 4K4 Low Voltage UNIVERSAL STACKABLE MODEL 

 
 
 
 
 

HeSU 4k4 UNIVERSAL STACKABLE * HIGH CURRENT                      V_1.07.1_2019    P

age-1

 

 
 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 

48V Household Energy Storage System UNIVERSAL 4K4 

Product manual HESU Max 5 units in Parallel Max 5 Clusters 

Model type HeSU UNIVERSAL STACKABLE UNITS 

BMS-CAN V3.0 

Version

：

V1.07.1-November 2019 

Summary of Contents for HeSU 4K4-R19/4

Page 1: ...eSU 4k4 UNIVERSAL STACKABLE HIGH CURRENT V_1 07 1_2019 Page 1 48V Household Energy Storage System UNIVERSAL 4K4 Product manual HESU Max 5 units in Parallel Max 5 Clusters Model type HeSU UNIVERSAL STACKABLE UNITS BMS CAN V3 0 Version V1 07 1 November 2019 ...

Page 2: ...WeCo HeSU 4K4 Low Voltage UNIVERSAL STACKABLE MODEL HeSU 4k4 UNIVERSAL STACKABLE HIGH CURRENT V_1 07 1_2019 Page 2 ...

Page 3: ...reme sources of heat ATTENTION The battery terminals must be disconnected before commencing any work on the battery ATTENTION This battery can accumulate parasite current Do not touch the B and B terminals Always check the B and B terminals with a voltmeter Always ensure that there is ZERO volts present on the terminals before performing any operation on the battery ATTENTION Always wear Individua...

Page 4: ... 12 5 4 Communication and Control Panel 18 5 5 DIP Switch Settings 19 5 6 Parallel Battery Wiring Connections 21 6 BATTERY ACTIVATION AND SHUTDOWN 24 6 1 Panel Button and LEDs Explanation 24 6 2 Stand Alone Battery Front Panel Control 24 6 2 1 Start Battery 24 6 2 2 Shut Down Battery 24 6 2 3 Low battery Forced Charge Function 24 6 3 Parallel Battery Configuration 25 6 3 1 Activation of Parallel B...

Page 5: ...on and the latest datasheet are available on www wecobatteries com It is essential that the battery unit is equipped with the latest firmware version available WeCo will release new firmware to improve the functionalities and battery capabilities from time to time The latest version of the firmware is always available free of charge the battery firmware can be updated by your local installer You c...

Page 6: ...ut this Manual This manual relates only to the HeSU 4k4 Low Voltage Universal Stackable Model This manual is intended to be used only by qualified installers who must read carefully and always refer to the manual for guidance on correct operation and maintenance of the product 2 2 Use Range This installation guidance applies only to the HeSU 4k4 Low Voltage Universal Stackable Model 2 3 Additional...

Page 7: ...se or abuse may result in health and safety risks such as overheating or electrolyte smoke potential All personnel must comply with the safety precautions and observe all warnings as detailed in this document If any of the safety precautions or procedures detailed in this manual is not fully understood by the reader the reader must not perform any operation on the battery until they have contacted...

Page 8: ...ed in this document Use of this product other than as described in this document will nullify the product guarantee The substitution or installation of any components of this battery will nullify the product guarantee The use of any components contained within or connected to this battery other than the products sold as part of this product or recommended by the manufacturer will nullify the produ...

Page 9: ...duct parameters including model type and serial number Installers must always check that the specifications displayed on the nameplate of the battery module relates to the installation manual that is being referred to for guidance Only qualified personnel with a comprehensive understanding of this manual are permitted to install this product Stackable Brackets Front Cover Insulated Supports 4x Bat...

Page 10: ...ecting cables should be as short as possible to prevent excessive voltage drops d Batteries with different capacity different P N or from different manufactures must never be connected together e Before connecting the battery the battery positive and negative poles need to be carefully checked to ensure correct installation f The battery should be installed on a horizontal plane 5 2 Package Inform...

Page 11: ...tery case 1 5 Battery 2 Short power cable Stack KIT 1 1 Positive and negative Ring terminal connection 3 Fixed front screws Stack KIT 4 Screws 5x35 4 CAN cable RJ45 Parallel Connection provided with the battery 1 100cm 5 Stack Brackets M4 screws Stack KIT 3 1 kit x 3 each box screws 6 Front Panel Stack KIT 1 1 kit 7 Supports Stack KIT 4 1 kit x 4 each box screws 8 BMS STD 1 BMS std Cable 100cm ...

Page 12: ...LE HIGH CURRENT V_1 07 1_2019 Page 12 5 2 2 Recommended Installation Tools Multimeter Current clamp Screw Driver Set Allen Key Set Drill Hammer Electrician Scissors Wrench set Lifting strap mechanical lifter RS 232 USB screw terminal insulated 5 2 3 Personal Protective Equipment ...

Page 13: ...GH CURRENT V_1 07 1_2019 Page 13 5 3 Installation Procedure 5 3 1 Battery Controls and Connections RUN STOP Button NEGATIVE TERMINALS B EARTHING POINT RS 232 LAN connection RS 232 PLUG RUN STOP Button 2 BATTERY HANDLE RS 485 PARALLEL A B DIP SWITCH BMS CAN D I D O NEGATIVE TERMINALS A ...

Page 14: ...d is 55cm x 46cm but the actual contact with the ground is made by 4 supports of about 4x10 cm each Make sure the support surface is adequate to support the overall battery load Information Preparation of the modules The battery is delivered as standard in a WALL MOUNT CONFIGURATION and it is therefore necessary that the installer make simple external changes to install the STACK KIT STACK MOUNT I...

Page 15: ...y Check that the second battery is aligned with the first battery and that all feet are making contact with the first battery 2 Once each battery has been installed in the horizontal position the feet which shipped with the battery in standard configuration can be removed as they are no longer required 3 With the second battery correctly positioned on top of the first battery you must install the ...

Page 16: ...that the second battery is securely installed on top of the first battery CAUTION Each battery weighs more than 50kg and must be installed with the help of a mechanical lift and or with at least two people equipped with suitable suction cups for lifting or lifting straps 3 Continue the installation with the desired quantity of modules following the sequence described in points 1 through 5 ...

Page 17: ...ULTIMETER Once it has been verified that there are ZERO volts present ON ALL BATTERIES proceed with the installation of the cables as shown in the diagram below RUN STOP button with LED indicator Power connections attention to the connection methodology OUTPUT Negative from the upper module OUTPUT positive from the Lower module B RS 485 Series start from door B continues to the next module towards...

Page 18: ...ttom and work up to the top Always install cables in accordance with installation guidelines and avoid long cable runs to prevent excessive voltage drops 6 The complete installation for the battery stack can be seen below Install the plate using the supplied M8 Allen screws Note that the output position of the cables is only indicative and can vary with each installation Output position of the pow...

Page 19: ...NT V_1 07 1_2019 Page 19 5 4 Communication Control Panel 5 4 1 Terminal Function and Definition The terminal layout is shown in the following figure Attention Interface C is an RJ45 Port corresponding to the CAN Bus pin definition shown below 8 1 Pin 8 7 6 5 4 3 2 1 Definition GND CAN_L CAN_H ...

Page 20: ...SETTINGS BEFORE CONNECTING ANY POWER CABLES TO THE BATTERY TERMINALS B AND B WHEN CHANGES HAVE BEEN MADE TO DIP SWITCH SETTINGS THE BATTERIES MUST ALWAYS BE RESTARTED FOR THE CHANGES TO TAKE EFFECT WHEN THE INVERTER HAS A CANBUS COMMUNICATION PORT SWITCH 5 OF THE MASTER BATTERY MUST ALWAYS BE SET TO ON 5 5 1 Stand Alone Battery MASTER INDIVIDUAL 5 5 2 Master Slave 1 MASTER SLAVE 1 ...

Page 21: ...Slave 1 Slave 2 MASTER SLAVE1 SLAVE2 MASTER SLAVE 1 SLAVE 2 5 5 4 Master Slave 1 Slave 2 Slave 3 MASTER SLAVE 1 SLAVE 2 SLAVE 3 5 5 4 Master Slave 1 Slave 2 Slave 3 Slave 4 MASTER SLAVE 1 SLAVE 2 SLAVE 3 SLAVE 4 ATTENTION ALWAYS CONFIGURE THE DIP SWITCH SETTINGS BEFORE CONNECTING ANY POWER CABLES TO THE BATTERY TERMINALS B AND B ...

Page 22: ...e Tighten CHECK EVERY THREE MONTHS THE DRAWINGS IN THIS MANUAL ARE FOR REFERENCE ONLY IF THE DRAWINGS IN THIS MANUAL DO NOT MATCH THE ACTUAL PRODUCT THAT IS BEING INSTALLED DO NOT PROCEED ENSURE THAT THE BATTERY IS ISOLATED ALL CONNECTIONS REMOVED STORE THE BATTERY IN A SAFE PLACE AND CALL WECO PRODUCT ASSISTANCE FOR SUPPORT FOR MAX CHARGE AND DISCHARGE CURRENT REFER TO THE TABLES IN THE NEXT SECT...

Page 23: ...VERVIEW THE DRAWINGS IN THIS MANUAL ARE FOR REFERENCE ONLY IF THE DRAWINGS IN THIS MANUAL DO NOT MATCH THE ACTUAL PRODUCT THAT IS BEING INSTALLED DO NOT PROCEED ENSURE THAT THE BATTERY IS ISOLATED ALL CONNECTIONS REMOVED STORE THE BATTERY IN A SAFE PLACE AND CALL WECO PRODUCT ASSISTANCE FOR SUPPORT 5 6 1 Master Slave 1 5 6 2 Master Slave 1 Slave 2 CAN PORT CAN PORT ...

Page 24: ...K4 Low Voltage UNIVERSAL STACKABLE MODEL HeSU 4k4 UNIVERSAL STACKABLE HIGH CURRENT V_1 07 1_2019 Page 24 5 6 3 Master Slave 1 Slave 2 Slave 3 5 6 4 Master Slave 1 Slave 2 Slave 3 Slave 4 CAN BMS PORT CAN BMS PORT ...

Page 25: ...activated normally 6 2 2 Shut Down Battery Long press the power button for five seconds The GREEN RUN light should go off The battery has been shut down normally 6 2 3 Low Battery Force Charge Prerequisite The VOLTAGE between the battery B and B terminals is ZERO and the PANEL LIGHTS ARE OFF Battery is in Shutdown State Preparation condition before forced charging Connect the charger or the invert...

Page 26: ...tion of Parallel Batteries From Master to Slave 4 Short press the Master power button for one second The GREEN RUN light should come on The battery has been activated normally Short press the Slave 1 power button for one second The GREEN RUN light should come on The battery has been activated normally Short press the Slave 2 power button for one second The GREEN RUN light should come on The batter...

Page 27: ...LARM The battery relay is disconnected when charging and the battery fault light is flashing Stop charging and review and reset properly the inverter settings 5 LOW VOLTAGE ALARM The battery relay is disconnected when discharging and the battery fault light is flashing Stop discharging from battery Charge the battery in accordance with the correct charging procedure 6 RELAY DAMAGE The battery is s...

Page 28: ...n no voltage output Measure the positive and negative voltage of each battery if the voltage difference between the batteries is greater than 2V please reduce the voltage difference to less than 2V to try parallel connection 10 MASTER SLAVE MACHINE COMMUNICATION EXCEPTIONS Slave battery fault light flashes the master machine cannot control slave battery Check that the communication cables between ...

Page 29: ...ommunication and set up for 232 USB device is available for auth Installers 1 Launch the exe file WeCo_Monitor and wait for self installation 2 From the main page select USER FREE if you are not an authorizhed installer if you have a 1st level passoword click on the RESTRICTED ACCESS windows and follow the Authorized Installer Guide If in possession of a valid pasword the authorised installer will...

Page 30: ...t the RS232 converter and search the relative com on the PC settings device manager of Windows_ Select the COM port from the Main page of the WeCo Monitor then pres CONNECT Follow the instruction and wait for the data on the screen 4 If more than one module is connected select Parallel Overview and check the single unit data ...

Page 31: ... inverter communication select and press SET wait for the positive feedback after the first communication with the inverter 6 For manual adjustment to change the batteries set limits select the Operator Setting 1 TAB and change the setting in the permitted values This operation is possibile only with batteries connected to the WeCo Server Wifi or LAN ...

Page 32: ...equalization is necessary after a failure please refer to the CELL EQUALIZATION MANUAL not public and activate the manual procedure IMPORTANT After the first Manual Forced Equalization the single cell equalizer will return in Auto mode within 24h 8 Factory reset this must be authorized from the WECO Tech Department follow the instruction of the FACTORY RESET PROCEDURE ...

Page 33: ... Island 5 5x4 4 22kWh x5 110kWh 03 Must Solar PH 5 5x4 4 22kWh x5 110kWh 04 GOODWE Sp ALL LV Hybrid 5 5x4 4 22kWh x5 110kWh 05 STUDER INNOTEC Extender 5 5x4 4 22kWh x5 110kWh 06 OUTBACK no BMS Aplha CAN ALL 5 5x4 4 22kWh x5 110kWh 07 VOLTRONIC ALL 5 5x4 4 22kWh x5 110kWh 08 IMEON ALL 5 5x4 4 22kWh x5 110kWh 09 VICTRON ALL 5 5x4 4 22kWh x5 110kWh 10 INVT MEGA LV ALL 5 5x4 4 22kWh x5 110kWh 11 Schne...

Page 34: ... as per Battery datasheet Description Inverter Low Voltage CUT OFF Inverter High Voltage CUT OFF STD Charging Current max86A 110A STD Discharging current Max 86A 110A Single Battery 49 5 SOC 0 Suggested 50 5 SOC 5 if ON grid Suggested 51 0 SOC 10 if OFF GRID 54 5 65A max 110A 70A max 110A Master Slave1 Master SL1 SL2 Master SL1 SL2 SL3 Master SL1 SL2 SL3 SL4 TEMPERATURE C RATE 1C Overload 0 5C CHA...

Page 35: ...B IS REQUIRED FOR SINGLE CLUSTER ATTENTION Connect two 25 mm AWG Wire of the same length on each terminal as shown above Strictly respect the below chart for the cluster configuration with standard kit 25 mm cables Single cable 25mm POSITIVE Single cable 25mm NEGATIVE CAN BUS Communication Cable to the inverter MASTER BATTERY SLAVE 3 SLAVE 2 SLAVE 1 SLAVE 4 ...

Page 36: ...STER CURRENT ALLOWANCE Standard CABLES kit connection 100A SINGLE CLUSTER Charge Discharge Batteries in parallel with 25mm2 parallel connection cable Amps 2 86A 110Peak 3 86A 110Peak 4 86A 110Peak 5 86A 110Peak 40 Nm Parallel Screw Terminal must be checked every 3 months 2 modules 4K4 Max Charge Discharge 110 A 3 4 modules 4K4 Max Charge Discharge 110A 5 modules 4K4 Max Charge Discharge 110A ...

Page 37: ...ef STK 4K4 100 2 x cable diam 25mm length 0 2mt terminal Ring terminal on both ends 1 x Red 1 x Black Supplied into the BRK carton Box 2 x cable diam 25mm ring terminal 1 x Red 1 x Black Supplied in Every Battery Carton Box UNIVERSAL BRAKETS KIT Order Ref STK 4K4 BRK r19 1 x front plate 4K4 1x Stack Brackets 1x left bracket 1x right bracket 1x back bracket 1x Screws bag 4x rubber feet BRK Carton B...

Page 38: ... 4k4 UNIVERSAL STACKABLE HIGH CURRENT V_1 07 1_2019 Page 38 11 SINGLE CLUSTER CONFIGURATION 300A Double BUS BAR NO HUB IS REQUIRED FOR SINGLE CLUSTER 2 x 50mm NEGATIVE 2 x 50mm POSITIVE CUSTOM COPPER BUS BAR 300Amper SYSTEM MASTER CAN BMS PARALLEL CONNECTION ...

Page 39: ...AL STACKABLE MODEL HeSU 4k4 UNIVERSAL STACKABLE HIGH CURRENT V_1 07 1_2019 Page 39 40 Nm Parallel Screw Terminal must be checked every 3 months SPECIAL BUS BAR FOR PARALLEL CONNECTION ABOVE 100A UP TO MAX 300A BUS BAR MODEL STK 4K4 300 ...

Page 40: ...300 STANDARD KIT Order Ref STK 4K4 300 1 x Custom BUS BAR Insulated RED module connection 1 x Custom BUS BAR Insulated BLACK module connection Packed in single box 2 x cable diam 50 mm ring terminal 2 mt RED 2 x cable diam 50 mm ring terminal 2 mt RED UNIVERSAL BRAKETS KIT Order Ref STK 4K4 BRK r19 1 x front plate 4K4 1x Stack Brackets 1x left bracket 1x right bracket 1x back bracket 1x Screws bag...

Page 41: ...LTI CLUSTER CAN HUB FOR HIGH CAPACITY AND HIGH CURRENT CONFIGURATION REQUIRED IF MORE THAN 1 CLUSTER BMU BMS COMBINER We HUB SEE THE POWER CURRENT CONFIGURATION BELOW EACH BATTERY PACK AND EACH CLUSTER MUST HAVE THE SAME SOC ABOVE 100A MUST USE THE BUS BAR PROVIDED BY WECO Order Ref STK 4K4 300 EACH CLUSTER MUST HAVE THE SAME NUMBER OF BATTERY PACKS ...

Page 42: ...n and connector A I O CONTACT 2X Programmable closure contact B DIP SWITCH Baud Rate Selection C CAN BUS PORTS 2X CAN Bus port for external solar grid charger D RS 485 port RS 485 communication port MODBUS E CLUSTER CAN PORTS 5X Master Cluster CAN port F ON OFF SWITCH Internal Power supply switch G INLET 48Vdc Connector for power input to connect to the bus bar 1A fuse protected H RS232 PORT Exter...

Page 43: ...eSU 4K4 Low Voltage UNIVERSAL STACKABLE MODEL HeSU 4k4 UNIVERSAL STACKABLE HIGH CURRENT V_1 07 1_2019 Page 43 WECO HUB Dimensions Fix on the wall with 4 x 6mm screw washer Weight 8kg 45 485 80 463 445 400 200 ...

Page 44: ...AL STACKABLE MODEL HeSU 4k4 UNIVERSAL STACKABLE HIGH CURRENT V_1 07 1_2019 Page 44 KIT ORDER CODE MASTER HUB 300 LV 5 HIGH CURRENT KIT MASTER HUB 300 LV 5 1 x WeHUB parallel Controller Packed in carton box 1 x WeHUB cable power supply ...

Page 45: ...ed according to the active batteries in system in order to restore normal function 7 If the cluster is not balanced the current limitation set from the HUB to the inverter will be sent in order to manage the rest of active modules and clusters in the same time the imbalanced modules or cluster will equalize in standby mode and will reconnect once in the normal range 8 If more than 2 batteries in o...

Page 46: ...ing with the quantity of clusters and modules connected as per the below chart MAXIMUM CHARGE AND DISCHARGE AMPER Clusters 1 2 3 4 5 Batteries 1 155 206 275 344 2 155 279 372 495 557 3 206 372 446 528 660 4 241 433 462 616 700 5 301 488 578 700 700 MAXIMUM POWER CHARGE AND DISCHARGE kW Clusters 1 2 3 4 5 Batteries 1 4 8 8 7 11 6 15 4 19 3 2 8 7 15 6 20 8 27 7 31 2 3 11 6 20 8 25 0 29 6 37 0 4 13 5...

Page 47: ...ENT V_1 07 1_2019 Page 47 14 MULTI CLUSTER CONNECTION CONFIGURATIONS GENERAL SYSTEM DESCRIPTION WE HUB IS MANDATORY WHEN MORE CLUSTER ARE CONNECTED IN PARALLE NEGATIVE BUS BAR POSITIVE BUS BAR 2 x 50mm NEGATIVE 2 x 50mm POSITIVE 2 x 50mm NEGATIVE 2 x 50mm POSITIVE MASTER CAN of EACH CLUSTER ...

Page 48: ...EACH CLUSTER MUST HAVE THE SAME SoC and VOLTAGE ALL THE BATTERY MODULES MUST HAVE THE SAME FIRMWARE Cluster 1 of 5 Cluster 2 of 5 Cluster 3 of 5 Cluster 4 of 5 Cluster 5 of 5 More Inverters Max 300A SLAVE SLAVE SLAVE MASTER 2 x 50mm NEGATIVE 2 x 50mm POSITIVE Cluster 1 of 5 Cluster 2 of 5 Cluster 3 of 5 Cluster 4 of 5 Cluster 5 of 5 ...

Page 49: ...WeCo HeSU 4K4 Low Voltage UNIVERSAL STACKABLE MODEL HeSU 4k4 UNIVERSAL STACKABLE HIGH CURRENT V_1 07 1_2019 Page 49 OTHER EXAMPLES OF CLUSTERS 2 and 3 Modules each HUB power supply ...

Page 50: ...HeSU 48V Nominal DC Voltages 52 2 Amp Hours 86 Rated kWh Capacity 4 5 kWh Max Output Capacity 86 Ah Max Charge Current 110 Adc Suggested discharging Current 86Adc DC Voltage Range limited by contactor 45 to 58 9 do not use as settings Depth of Discharge 100 Up to 100 49 5V to 54 5V max 65A Depth of Discharge 90 50 5V to 54 0V Max 65A Depth of Discharge 80 51V to 53 5V a Operating Efficiency 98 Ope...

Page 51: ...needed SellRE Offset Voltage 54 Low Battery Cut Out Voltage 50 90 sec delay 48 5 1 sec delay 48 1 sec delay Low Battery Cut In Voltage 51 CHARGE CONTROLLER Absorb Voltage and Time 54 0 30 min 55 8 30 min Float Voltage 53 8 Default Rebulk Voltage 51 DC Current Limit 86Adc as standard per single battery follow the manual Absorb End Amps 0 FLEXnet DC FN DC FN DC Battery Ah 140 100 FN DC Charge Voltag...

Page 52: ...Enter the charger settings listed in Table 2 NOTE the values listed are for maximum charge current e Press the UP navigation key and select the Low Battery screen Enter the Low Battery Cut Out and Cut In voltages listed in Table 2 Enter the inverter settings for operating modes From the Main Menu select the Settings menu From the Settings menu select the Inverter menu c From the Inverter menu sele...

Page 53: ...ncluding inverters and charge controllers when the FN DC Battery Setup settings of Charged Voltage and Time plus the Charged Return Amps are all met Meeting these charge parameters is an indication that the battery is full and charging should stop This can save wear and tear on the batteries if multiple absorption cycles are initiated with minimal battery discharge In this case the charge paramete...

Page 54: ...he Settings menu select the Battery Monitor menu From the Battery Monitor menu select Battery Setup On the Battery Setup screen enter the TOTAL battery bank amp hours in Battery Ah Set Charged Voltage to 0 2 Vdc lower than the lowest Absorb volts setting in Table 2 Set Charged Return Amps to the value in Table 2 Set Time to 1 minute Enter the Charge Factor as the battery efficiency This number is ...

Page 55: ...r will shut down In this case press the RUN button and shut down the battery The BMS allow a self restart 4 times every 4 minutes In case the current or voltage limit has been passed for 4 time consecutively the operator must wait 30 minutes before press RUN once again A reduction of the charging current and new set up of the voltage is mandatory Please contact weco weco uk com do not install inve...

Page 56: ...limited as per the module maximum value Please contact weco weco uk com do not install inverter without BMS CAN interface without prior approval of WeCo technical team NOTE This manual is subjected to continuous implementation Before install your WeCo batteries please contact our assistance team in order to have the latest manual and any additional support Safety improvement is our priority please...

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