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Weco HeSU UNIVERSAL 5K3 Product Manual

Stackable 48v household energy storage system
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WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE
48V Household Energy Storage System UNIVERSAL 5K3
Product manual HESU Max 5 units in Parallel Max 5 Clusters
Model type HeSU UNIVERSAL STACKABLE UNITS
BMS-CAN V3.0
Version：5K3_V2.00-November 2019
HeSU 5K3-R20 STACKABLE * HIGH CURRENT
V_2.00_2019
Pag. 1

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Summary of Contents for Weco HeSU UNIVERSAL 5K3

  • Page 1 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 48V Household Energy Storage System UNIVERSAL 5K3 Product manual HESU Max 5 units in Parallel Max 5 Clusters Model type HeSU UNIVERSAL STACKABLE UNITS BMS-CAN V3.0 Version：5K3_V2.00-November 2019 HeSU 5K3-R20 STACKABLE * HIGH CURRENT V_2.00_2019...
  • Page 2 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE Battery can explode if heavy object impact on it. Battery´s Weight Exceed 52 kg, must be handle with mechanical devices Battery can explode, keep away from free flames or sparks disconnect any terminal before operating the battery This battery can accumulate parasite current, disconnect the main breaker and wait 5 minutes “Must be 0V”...

  • Page 3: Table Of Contents

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE Content Statement: ....................................5 1 Preface....................................6 2 Information in this Manual ............................6 2.1 About this Manual ......................................6 2.2 Use Range ..........................................6 2.3 Additional Information ....................................6 2.4 Symbol Used ......................................... 6 3 Safety ......................................7...
  • Page 4 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 5.5 A single battery box is connected to the inverter .......................... 18 5.6 A plurality of battery boxes are connected in parallel with the inverter................18 5.6.1 Communication line connection ............................................ 18 5.6.2 Power cable connection ..............................................

  • Page 5: Statement

    This battery unit is equipped with the latest firmware version available. WeCo will release new firmware to improve the functionalities and battery capabilities. The latest versions of the firmware are always available free of charge, the battery can be updated by your local installer or writing an email to weco@weco.uk.com...

  • Page 6: Preface

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 1 Preface Thanks for choosing WeCo products. We provide a good, high quality and after sale service. To protect using staffs and product, please kindly read this manual carefully which provide detailed information for products features, structures, operate standard, maintenance and troubleshooting.

  • Page 7: Safety

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 3 Safety 3.1 Warnings and Notification Installation environment requirements: -HESU- SERIES is designed for household/commercial purposes. For installation, it must be installed in a location complying with IP20. (IP 55 or 65 are available on request) If the Installation location does not comply with IP20 may cause failure and the product will not be guaranteed for any related accident or damage.

  • Page 8: Identifying The Product

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 4.2 Identifying the Product 4.3 Product identification and labels The nameplate label describes the product parameters and is attached to the product. For details, please refer to the nameplate label of the product. For safety reasons, the user must have a good understanding of the contents of this manual before install the product...

  • Page 9: System Installation

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 5 System Installation The battery is packed in a carton box, the total weight exceed 52Kg, is mandatory the presence of two persons during the unpacking operations and preliminary check, and a mechanical lift to carry and handle the modules.

  • Page 10: Parts List

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 5.2.2 Parts list (Standard Kit 120A). Number Name Quantity Description Image 2x25mm²AWG cable 2.5 (m) Power Cable each Red/Black CAN cable RJ45 100cm Parallel Connection Flat Cover Flat Cover protection Stackable configuration...

  • Page 11: Installation Tools

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 5.2.3 Necessary Installation Tools Multimeter + Current clamp Screw Driver Set Allen Key Set Drill + Hammer RS 232/USB+screw terminal (insulated) Electrician Scissors Wrench set Lifting strap + mechanical lifter 5.2.4 Personal protective equipment HeSU 5K3-R20 STACKABLE * HIGH CURRENT V_2.00_2019...

  • Page 12: Installation

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 5.3 Installation 5.3.1 Product View -RACK MOUNTED CONNECTION VIEW RUN/STOP Button RS 232 / Wi-Fi HUB connection Digital I/O BMS CAN RS 485 PARALLEL A/B NEGATIVE TERMINALS A NEGATIVE TERMINALS B DIP SWITCH ADDRESS...

  • Page 13: Installation Method

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 5.3.2 Installation method 5.3.2.1 Installation of accessories and preparatory phases Phase 1: Choose the support surface, the batteries have a weight of over 52 kg each and can reach 260 kg including the accessories, if stacked in 4 elements.
  • Page 14 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE Information： Preparation of the modules The battery is delivered in WALL mode and it is therefore necessary for the installer to make simple changes to install the STACK kit. Below are the installation phases.
  • Page 15 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE Once the wall bracket support has been removed, start stacking the second module in correspondence with the first module laid on the ground. 2-Lift the second module and place it on the...
  • Page 16 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE OUTPUT positive from the Lower module OUTPUT Negative from the upper module RS 485 Series start from port B, continues to the next module towards port A CAN-BMS to inverter RUN / STOP button with LED indicator...

  • Page 17: Wiring Definition

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE Battery installed correctly, see image below Suggested Cable Output from the Bottom Side. 5.4 Wiring definition 5.4.1 Terminal function and definition The terminal layout is shown in the following figure: RUN/STOP ON/OFF...

  • Page 18: A Single Battery Box Is Connected To The Inverter

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE DIN2-P IO port, interacts with a diesel engine, a photovoltaic device, or other external device. DIN2-N DO1-P DO1-N SDO1-P SDO1-N B+/B+ Battery positive B-/B- Battery negative Attention：C interface RJ45 port corresponding to the CAN bus pin definition...

  • Page 19: Power Cable Connection

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 5.6.2 PARALLEL POWER CONNECTION FOR 3 BATTERIES (1 MASTER + SLAVE 1 + SLAVE 2) Attention: The following figure is only the communication line connection diagram. Specific interfaces must be compared to physical objects.
  • Page 20 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE Attention: Power cable connection For High current connection diagram please refer to the specific section, charging current limitation is mandatory as per this manual instruction. Screws, cables and Bus Bar must be installed with diligence and the tighten of the connection terminal must respect the torque...
  • Page 21 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE MASTER+SL1+SL2 CAN BMS PORT MASTER+SL1+SL2+SL3 CAN BMS PORT HeSU 5K3-R20 STACKABLE * HIGH CURRENT V_2.00_2019 Pag. 21...

  • Page 22: Battery Box Activate And Shutdown

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE MASTER+SL1+SL2+SL3+SL4 CAN BMS PORT CAUTION： B + interface is parallel to the battery pack is always positive, B- interface for the parallel battery total negative, GND for the parallel battery grounding port.

  • Page 23: The Operation Steps Of The Battery Box Works Alone

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 6.2 Stand Alone Battery Front Panel Control 6.2.1 Start Battery Short press the power button for one second. The GREEN RUN light should come on. The battery has been activated normally. 6.2.2 Shut Down Battery Long press the power button for five seconds.

  • Page 24: The Parallel Batteries System Shutdown

    WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE Short press the Slave#4 power button for one second. The GREEN RUN light should come on. The battery has been activated normally. Now all parallel batteries are activated normally and the parallel system is properly powered on.
  • Page 25 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE Please contact the after-sales service, When this sign is disconnected and green, the Relay damage No alarm when power-on, no voltage replace relay relay is disconnected; output in the battery box. Monitoring...
  • Page 26 - (USB / RS232 converter is necessary to communicate with the battery). 8 SOFTWARE GUIDE WECO OLP RS232 (USB / RS232 converter is necessary to communicate with the battery) *_PC -Battery communication and set up for 232-USB device is available for auth. Installers.
  • Page 27 Connect 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.
  • Page 28 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE If more than one module is connected, select Parallel Overview and check the single unit data. CAN protocol Setting, to match the inverter communication, select and press SET, wait for the positive feedback...
  • Page 29 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 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) Equalization ACTIVE PASSIVE and MANUAL, if a manual equalization is necessary after a failure, please refer to the CELL EQUALIZATION MANUAL (not public) and activate the manual procedure.
  • Page 30 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE Factory reset. (this must be authorized from the WECO Tech Department ) follow the instruction of the FACTORY RESET PROCEDURE HeSU 5K3-R20 STACKABLE * HIGH CURRENT V_2.00_2019 Pag. 30...
  • Page 31 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE 8.0 Product compatibility list + Maximum Parallel modules Admitted per cluster DIRECT PARALLEL WITH CAN COMMUNICATION Number Inverter brand Inverter model Parallel Units HeSU 5.3 LFP SoFar / ZCS Azzurro** SP3000/HYD 5x5.3=26.5kWh x5 – 132.5kWh...
  • Page 32 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE DIRECT PARALLEL WITHOUT COMMUNICATION BMS INVERTER Any inverter can be used with WeCo Batteries by setting the voltage and Current Value as per Battery datasheet. Description STD Charging Current STD Discharging current...
  • Page 33 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE SINGLE CLUSTER CONFIGURATION 120A -CABLES NO HUB IS REQUIRED FOR SINGLE CLUSTER Single cable 25mm² Single cable 25mm² NEGATIVE POSITIVE CAN BUS Communication Cable to MASTER BATTERY the inverter SLAVE # 1...
  • Page 34 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE SINGLE CLUSTER CURRENT ALLOWANCE (Standard CABLES kit connection 120A). SINGLE CLUSTER Charge/ Discharge Batteries in parallel with 25mm2 parallel connection cable Amp 2 modules 5K3 – Max Charge Discharge 120 A 4 modules 5K3-...
  • Page 35 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE OVERVIEW MULTI CLUSTER SYSTEM -Double BUS BAR- 2 x 50mm² MASTER 2 x 50mm² POSITIVE NEGATIVE CAN BMS PARALLEL CONNECTION COPPER BUS BAR 360A 40 Nm Parallel Screw Terminal must be checked every 3 months HeSU 5K3-R20 STACKABLE * HIGH CURRENT V_2.00_2019...
  • Page 36 SEE THE POWER/CURRENT CONFIGURATION BELOW EACH BATTERY PACK AND EACH CLUSTER MUST HAVE THE SAME SOC % ABOVE 120A MUST USE THE BUS BAR PROVIDED BY WECO (Order Ref. -STK 5K3-300) EACH CLUSTER MUST HAVE THE SAME NUMBER OF BATTERY PACKS This BMS BMU Master Hub is mandatory when more than one cluster is connected on a common bus bar.
  • Page 37 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE WeHUB can manage a maximum of 5 clusters composed by a maximum of 5 modules each TO BE USED WITH BUS BAR CONNECTION ONLY Interface description and connector I/O CONTACT 2X Programmable closure/ contact...
  • Page 38 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE HUB CAN Dimensions Fix on the wall with 4 x 6mm screw + washer Weight: 8kg HeSU 5K3-R20 STACKABLE * HIGH CURRENT V_2.00_2019 Pag. 38...
  • Page 39 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE CONTROL LOGIC AND PROECTION LIMIT The inverter, if has the functions must be set with the below restrictions in addition to the BMS control logic MAX CURRENT WITH BUS BAR CURRENT SETTING / BMS CURRENT LIMIT...
  • Page 40 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE GENERAL SYSTEM DESCRIPTION WE-HUB IS MANDATORY WHEN MORE CLUSTER ARE CONNECTED IN PARALLE MASTER CAN of EACH CLUSTER NEGATIVE BUS BAR 2 x 50mm² 2 x 50mm² POSITIVE POSITIVE 2 x 50mm²...
  • Page 41 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE SPECIAL BUS BAR FOR PARALLEL CONNECTION ABOVE 120A UP TO MAX 360A (BUS BAR MODEL -STK 5K3-360) ATTENTION: BUS BAR ARE MANDATORY FOR SYSTEMS ABOVE 120A. DO NOT USE DIFFERENT BUS BAR TYPES OR CABLES...
  • Page 42 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE SLAVE SLAVE SLAVE MASTER More inverter (Max 360A Cluster 2 of 5 Cluster 3 of 5 Cluster 4 of 5 Cluster 5 of 5 Cluster 1 of 5 2 x 50mm² POSITIVE 2 x 50mm²...
  • Page 43 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE HUB power supply HeSU 5K3-R20 STACKABLE * HIGH CURRENT V_2.00_2019 Pag. 43...
  • Page 44 2 x cable 50 mm² ring terminal 2 mt RED 2 x cable 50 mm² ring terminal 2 mt RED Note**MAIN PARALLEL BUS BAR ARE NOT PROVIDED BY WECO MULTI CLUSTER HUB DEVICE KIT ORDER CODE MASTER HUB 300 LV-5...
  • Page 45 WeCo - HeSU UNIVERSAL MODEL 5K3 UNIVERSAL STACKABLE BATTERY INSTALLATION - NO COMMUNICATION INVERTERS NEEDS A STRICKTLY SETTING IN ACCORDANCE WITH WECO’s DESIGN, THE BELOW CHART IS REFERRED ONLY FOR A SINGLE CLUSTER SETTING HeSU ESS - 5K3 – R20 Nominal DC Voltages 51.2...
  • Page 46 54,0V 46,5V 0,1C 0,2C Variable Time Re-Launch 10 min Absorption 10-20min Please contact weco@weco.uk.com, do not install inverter without BMS-CAN interface without prior approval of WeCo technical team Single Cell Curve SOC-OCV Curve Charge 100% SOC/% HeSU 5K3-R20 STACKABLE * HIGH CURRENT V_2.00_2019...
  • Page 47 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 cooperate with us to improve the system, any suggestion is well accepted.

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