Weco ESS LV-HUB XP User manual

LV-HUB V 1.00 February 2022
Installation and User Manual
LOW VOLTAGE HUB VALID FOR 5K3-XP
LV-HUB XP

LV-HUB V 1.00 February 2022
ATTENTION: This is a CAN communication device, it is very sensitive
to shocks and electromagnetic fields.
ATTENTION: This is a LOW VOLTAGE device and must be powered
from the battery common power line
ATTENTION: This device 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 are ZERO volts present on the terminals
before performing any operation.
ATTENTION: Always wear Individual protection devices, use insulated
tools, and follow the safety plan of this manual.
At end of life, must be disposed of properly by a certified
professional company.

LV-HUB V 1.00 February 2022
Statement:
The information and guidance contained in this manual is related to the LV-HUB- GEN2- EMEA
version XP Stackable model of battery. This manual contains two sections:
LV-HUB STACK it is designed to be staked on a 5K3 XP type battery
LV-HUB RACK is a 2U module designed to fit in a 19’’ rack shelf
In case of product upgrades or other reasons, this document will be adjusted accordingly. Unless otherwise agreed,
this document is intended to be used only as a guide, and all statements, information and advice in the
documentation shall not constitute any express or implied action in contradiction to local regulations orstandards.
For more information, please contact us.
The official information and the latest datasheet are available on www.wecobatteries.com
It is essential that the device is equipped with the latest firmware version available on the web site
From time to time, firmware will be updated to improve the functionalities and battery capabilities. The latest
version of the firmware is always available free of charge and can be updated by your local installer.
You can always contact WeCo for additional information on the upgrade procedure.
Preface:
Thank you for choosing our product. We will provide you with a high-quality product as well as reliable after-
sale service. To protect against harm to both personnel and the product, please read this manual carefully.
This manual provides detailed information on operation, maintenance and troubleshooting of the product as well
as health and safety advice.
Declaration:
The manufacturer holds the right of final explanation of any content in this manual.
All trademarks shown in this manual belong to their legitimate owners; trademarks of third parties, product
names, trade names, corporate names and companies mentioned may be trademarks owned by their
respective owners or registered trademarks of other companies and are used purely for explanatory purposes
and for the benefit of the owner, without any purpose of violation of the copyright in force.
NOTICE:
This device is designed to be used indoors.
The STANDARD IP20 degree of protection does not allow installation in outdoor environments even if sheltered
from the weather.
The Battery Modules must be stored indoors in a clean, dry, cool location in a limited access area.

LV-HUB V 1.00 February 2022
System Design
System Design is the process of defining the architecture, components, modules, interfaces and load data for a
system to satisfy specified requirements.
For a solar energy system, these components are the PV modules, inverter/charge controller & batteries, as well as
the different interfaces of those components.
The LV-HUB GEN2 - EMEA version is designed to connect in parallel multiple clusters with a single CAN connection to
the Hybrid Inverter
Product Overview
The LV-HUB is a CAN communication Combiner and can be used to connect multiple master CAN
communication addresses from multiple clusters that compose an LV system
The LV-HUB-XP is not a power device
LV-HUB-XP minimum startup voltage is 30 Vdc and max Input voltage is 60Vdc
LV HUB-XP max current is 2A and it is equipped with built in fuse rated 5A
Information in this Manual
About this Manual
Only trained and authorized personnel should install, repair or program this device.
This manual should be reviewed in its entirety for proper storage, installation and operation of the device
Use Range
This device can be used only in low voltage applications
Additional Information
Product specifications subject to change without notice.
Symbols Used
Symbol Meanings：
CAUTION：
CAUTION represents hazardous situations which can cause injuries if not avoided.
NOTICE：
NOTICE represents the situations which can cause damage to property if not avoided.
INFORMATION：
INFORMATION provides tips that are valuable for optimum installation and operation of the product.

LV-HUB V 1.00 February 2022
LV HUB Overview
INFORMATION provides tips that are valuable for optimum installation and operation of the product.
SEE THE POWER/CURRENT CONFIGURATION
SET THE INVERTER POWER AS PER THE CABLES CAPABILITIES
Each battery pack and each cluster must have the same Voltage and Firmware.
All stack configurations must use the WeCo Bus Bar.
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.
The LV HUB works only with CAN communication-approved inverters.
FUSE LID 5A 60Vdc
POWER SUPPLY INPUT
DRY CONTACTS
RUN/FAULT
RUN BUTTON
SOC STATUS
OPERATOR PORT
CLUSTER CAN INPUT
WiFi Port
CAN BMS

LV-HUB V 1.00 February 2022
ATTENTION
For the Above Models of batteries, the LV HUB XP can manage a maximum of 7 clusters composed of a
maximum of 15 modules each.
ATTENTION
The HUB XP and batteries BMS must be equipped with the latest FW available on websitesite
www.wecobatteries.com

LV-HUB V 1.00 February 2022
LV HUB-XP DEVICE OVERVIEW
Interface Description and Connector
A
I/O CONTACT 2X
Programmable closure/contact
B
DIP SWITCH
reserved, undefined
C
CAN BUS PORT
CAN / BMS Bus PORT for external solar –grid charger
D
WIFI PORT
Wi-Fi External PORT
E
CLUSTER CAN PORT
Master Cluster CAN from last master of the system
F
OPERATOR PORT
OPERATOR PORT FOR RS232/USB converter
G
INLET 30 Vdc
Connector for power input to connect to the bus bar (5A fuse inside)
H
ON OFF SWITCH
Internal Power Supply Switch
I
SYSTEM SOC
Show the system SOC, 0-25%●,25-50%●●, 50-75%●●●, 75-100%●●●●.
K
POWER LED
RED > POWER ON No light > POWER OFF
L
RUN LED
Steady light > system normal
Flashing > system failure
M
FUSE HOLDER
LV circuit Fuse
N
GND screw Connection
5mm Screw Terminal
A
B
C
D
E
F
G
I
H
M
N
K
L

LV-HUB V 1.00 February 2022
Low Voltage CAN HUB Dimensions ( rack Mounted version is 19`` width)
Weight: Kg: 8
Control Logic and Protection Limit
The inverter, if applicable, must be set with the below restrictions in addition to the BMS
control logic.
MAX CURRENT CONTROL LOGIC ( From LV HUB to certified inverters)
*Please refer to the above table according to the number of clusters and parallels applicable to the system.
1. The charge current will be limited to zero Amps when the single module voltage has been reached 56.8V.
2. The discharge current will be limited to zero Amps when the single module voltage has been discharged to 50.4V.
3. The battery system will communicate with the inverter to limit the current.
4. Each Battery Module will be protected by the same logic separately as per single module protection concept.
5. If some modules, individually, reach any fault status, the single module will protect and disconnect from
the system in less than 3 seconds.
6. The current limit must be adjusted according to the real active batteries in system to restore the normal function.
7. If the cluster is not balanced, the current limitation set from the HUB to the inverter will be sent to manage
the rest of active modules and clusters. At 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 two batteries in one cluster are in protection mode, the entire cluster will protect by shutting down.
9. If there are more than two clusters in protection mode, the full system will be protected.
10. The battery sends information to the inverter to limit the charge/discharge current to zero Amps if the
battery is detecting an over current.
11. The protection built into the BMS will automatically disconnect the battery when it detects excess values.
The BMS will attempt to reconnect up to three times to check if the excess values have returned to within
the permitted range. After three attempts to reconnect, the BMS will not attempt any further
reconnections. The Battery Module can be restarted using the module power switch and run button,
however, if the external fault condition which caused the Battery Module to shut down is not rectified, the
battery will continue to enter the shutdown mode.
12. If the current of one cluster is larger than the current limit, the battery system will send a warning in
accordance with the single module BMS logic.
Modules Clusters 1234567
1100 196 288 376 460 540 616
2196 376 540 688 820 936 1036
3288 540 756 936 1080 1188 1260
4376 688 936 1120 1240 1296 1400
5460 820 1080 1240 1300 1500 1750
6540 936 1188 1296 1500 1800 2100
7616 1036 1260 1400 1750 2100 2450
8688 1120 1296 1600 2000 2400 2800
9756 1188 1350 1800 2250 2700 3150
10 820 1240 1500 2000 2500 3000 3500
11 880 1276 1650 2200 2750 3300 3850
12 936 1296 1800 2400 3000 3600 4200
13 988 1300 1950 2600 3250 3900 4550
14 1036 1400 2100 2800 3500 4200 4900
15 1080 1500 2250 3000 3750 4500 5250

LV-HUB V 1.00 February 2022
LV HUB-XP General System Description
HUB-XP is Mandatory for Multiple Cluster Installation
ATTENTION:
BEFORE PROCEEDING WITH THE INSTALLATION, IT IS MANDATORY TO READ THE INSTRUCTIONS BELOW
ATTENTION: DO NOT USE DIFFERENT BUS BAR TYPES OR CABLES NOT APPROVED BY WECO
ATTENTION: EACH BATTERY MODULE AND EACH CLUSTER MUST HAVE THE SAME SoC% and
VOLTAGE. ALL THE BATTERY MODULES MUST HAVE THE SAME FIRMWARE.

LV-HUB V 1.00 February 2022
Multi Cluster Configurations for 5K3 XP and HUB-XP
Before using the MASTER HUB device, make sure to update the modules with the latest updated Firmware
available on www.wecobatteries.com
Touse and set up the HUB-XP , the installer must follow the instructions contained in this manual.
1. It is possible to stack from a minimum of three modules per cluster to a maximum of 15 modules for 5k3 XP.
2. It is possible to create up to 7 clusters with a maximum of 15 modules each for a total of 105 batteries for the 5K3 XP.
3. All the battery modules of each cluster must have all the DIP Switches set to 00000000 with the only exception of the master module
that needs to be addressed with the specific cluster ID.
4. Each master battery of each cluster needs to be assigned with a unique and progressive ID as shown below.
5. The first cluster will have the ID 01 and needs to be connected from the CAN PORT 2A to the CAN PORT 1A of the consecutive Cluster
that will have the ID02. Proceed with the Daisy Chain connection between Clusters up to the last.
6. From the master battery, of the last cluster needs to be connected the HUB from the CAN PORT 1A to the CAN INPUT PORT of the HUB.
7. The Connection of the power cables between HUBs must be executed in accordance with the previous instruction.
8. The LV HUB can be powered with 2 x 1,5mm² cables from the common bus bar to the INPUT terminal of the HUB.
9. The HUB is connected via CAN to the inverter from the HUB CAN BMS PORT.
10. When all the connections have been completed, it is possible to turn on the HUB with the POWER BUTTON.
11. Turn on all MODULES POWER SWITCHES.
12. Turn ON the RUN Button of the Master of each Cluster and wait for the auto wake-up of all the SUB modules.
13. According to the numbers of modules connected, the entire startup procedure could take up to 320 seconds to be completed.
Module Set Up
Each battery module must have the same Voltage, SOC% and Firmware.
The battery firmware must be the version” FW-V60.02” and above available on the web site :
https://wecobatteries.com/download-area/
For this setting, use only the WeCo RS 232 CONVERTER
Launch the WeCo software > Select Module setting program > Select the Com port and connect to the battery get info >
Click Search new firmware > Select the firmware > Load Firmware > wait for the upgrade completion > The Green bar
Show the upgrading status > Pop up the window show Upgrade success.
SOFTWARE FOR HUB SET
WeCo RS 232 CONVERTER
To Set up the HUX-XP it is necessary to use the PC software WECO MONITOR Always use the latest version available on our website.

LV-HUB V 1.00 February 2022
STEP BY STEP PROCEDURE
Do not turn on the batteries until the entire system has been connected with the BUS BAR between modules and the Power cable is connected
to the common bus bar or to the inverter
1. Stack all the modules in positions (Verify the load with a local civil engineer).
2. Connect each module to GND and to the Master GND node.
3. Assign each MASTER BATTRERY with a progressive ID following the DIP settings (max 15 Clusters).
4. Connect the MASTER ID01, starting from the CAN-1A PORT to the CAN-2A PORT of MASTER ID02 and proceed up
to the last MASTER.
5. Connect the LAST MASTER from the CAN-1A PORT to the CAN INPUT PORT of the HUB.
6. Connect the CAN-BMS PORT with the INVERTER CAN PORT (follow the PIN OUT provided by the Inverter manufacturer for
CAN L CAN H).
7. Assign each SUB module with Address 00000000.
8. Connect the RS485 from PORT B of the MASTER to the PORT A RS485 of the SUB1 and proceed in Daisy Chain up to the last
module.
9. Set the HUB DIP Switches as 00000010 ( DIP 7 ON )
10. Turn ON the HUB Switch.
11. Press the MASTER POWER BUTTON and the each battery cluster will start up automatically.
BATTERY SOFTWARE SET UP PROCEDURE
STEP 1, Upgrade all the batteries with the latest FW version.
•Access the Software and select the Low Voltage section, insert password 1010 and click on the “operator port” button
•Select the Battery image ``MODULE SETTING PROGRAM``
•Set the COM port and Press CONNECT
•Select SEARCH NEW FIRMWARE and LOAD the FW 60.02 or above, the Press UPGRADE FIRMWARE
Repeat the same UPGRADE to all the batteries of each cluster

LV-HUB V 1.00 February 2022
CONNECTING WITH THE BATTERY AND UPGRADE FIRMWARE CLUSTER
HUB SET UP ( for FWupgrade follow the same procedure shown above from the WE-HUB setting page)
Setting the HUB protocol from the DROP LIST

LV-HUB V 1.00 February 2022
Master battery ID Set Up ( each master battery of the cluster need to be set with reference ID )
Master ID Set Up and Connection Diagram
DIP SETTING SEQUENCE VALID FOR 5K3-XP
It is important to follow the diagrams below to make the connections in the correct sequence.
Each cluster must have its own unique address which will be assigned by the first battery of each cluster.
All the batteries in the group except the first must have the DIP switches set to 00000000 (see picture):
Only the first batteries of each cluster must be set following the sequence from ID 00 to ID 07 to allow the HUB to activate
the related logic based on the number of modules present in each cluster (minimum 3, maximum 15), and based on the
number of actual clusters connected to each other in a Daisy Chain (minimum 2 maximum 7).
All the master batteries must be connected in Daisy Chain from the first module to the last module, connecting the
CAN PORTS CAN1A and CAN2A to the last module from the CAN PORT CAN1A for connection to the HUB PORT -CAN
INPUT-
CLUSTERc CLUSTER
The First Battery of the cluster after being set with the
ID (acting on the DIP switches) will auto assign all the
sub-Module addressees.
Example:
The Master Module of the cluster ID01 will be:
Master: 1.01,
SUB 01: 1.02
SUB 03: 1.03 and so on up to the last module.
The Master Module of the cluster ID02 will be:
Master: 2.01,
SUB 01: 2.02
SUB 03: 2.03 and so on up to the last module.
MASTER GIVES
THE CLUSTER ID

LV-HUB V 1.00 February 2022
Connection Example of two clusters (MAX 15 modules in parallel in 7 clusters)
Communication Diagram + Power Connection
ATTENTION:
Each cluster must be equipped with an isolator to individually disconnect the battery
tower from the parallel bus bar if required by your local rules. WECO suggest the
installation (in any case) of a dual pole breaker on each line.
ALL RJ45 CABLES USED IN ANY CONFIGURATION ARE TYPE 568B
Master Inverter
NEGATIVE
POWER CABLES
2X50/75mm²
POSITIVE POWER
CABLES
2X50/75m
m²
GROUND CABLES
10mm²
RS485 PARALLEL
RJ45 Cable
DATA COMM
GROUND CABLES
10mm²
TWO POLES BREAKER
PARALLEL BUS BAR
CAN INPUT FROM
LAST CLUSTER
CLUSTER
ID02
CLUSTER
ID01

LV-HUB V 1.00 February 2022
ATTENTION:
The circuit between the inverter and the parallel bus bar must be separated by a manual switch
in accordance with UL regulations, however you need to refer to your local Standard for safety
and electrical compliances
Conceptual Diagram of a Cluster composed of 5 clusters of 8 batteries each.
MAX 300A peak per Cluster ( configuration example only )
Note: It is possible to install up to 7 clusters composed of 15 batteries each for a total of 105
batteries.
SUB n
SUB 1
MASTER
CAN BMS
IF A CIRCUIT BREAKER IS INSTALLED
MUST BE CLOSED BEFORE TURNING ON
THE BATTERIES TO AVOID DAMAGING
THE PRE-CHARGE CIRCUIT OR THE
INVERTER
POWER LINE MAX 60Vdc
CLUSTER 01
CLUSTER 02
CLUSTER 03
CLUSTER 04
N CLUSTER 05
BATTERY DC LINE ISOLATOR

LV-HUB V 1.00 February 2022
Conceptual Diagram between Master Modules of multiple clusters.
Note: It is possible to Install up to 7 clusters composed of 15 batteries each for a total of 105
batteries.
ATTENTION
The Last module of the cluster must have the DIP 6 ON in order to enable the 120 Ohm Terminator
ATTENTION
HUB DIP 7 MUST BE ON
DIP 7
ON

LV-HUB V 1.00 February 2022
LV HUB CONNECTION
1. Plug the RS 232 / RJ 45 to the operator Port
2. Connect the USB plug of the RS232 to your Laptop
3. Start Up the HUB ( To power up the HUB refer to the 5K3XP manual)
4. Open the Software and access to the LV section using the Password 1010
5. Select the HUB Icon
6. Turn on the HUB by setting the rocker switch to (7) ON
7. From the main page select the COM PORT and Press CONNECT
8. Once the LED lights will turn ON it will be possible to program the HUB
PS it is always suggested to upgrade the HB FW to the latest Version
9. Select the SETTING page ( Upper right Corner)
10. Set the number of cluster you have in your system( from 2 to 7)
11. Set the Number of Modules per cluster ( from 2 to 15)
12. Press SET to confirm the above selection
Plug the RS 232 /RJ45 to
the Operator Port

LV-HUB V 1.00 February 2022
STEP BY STEP PROCESS
Access the Software using the password 1010 + press OPERATOR ACCESS
Select HUB SETTING tab
Select the COM PORT and press CONNECT
The Status bar below the Button Connect Must be GREEN after pressing CONNECT

LV-HUB V 1.00 February 2022
Press Search Hub Firmware and upload the Latest LV HUB FW
At the date of the publication of this manual the most recent FW is:
Press OK to Upload the FW and wait for the Upgrade process to be completed

LV-HUB V 1.00 February 2022
Select the SETTING page to program the Number of Cluster and number of batteries per cluster
Select the number of clusters and the number of batteries each cluster and press SET to confirm
As last step it is mandatory to select the inverter protocol.
Turn on the inverter to enable the communication between LV HUB and Inverter, if the Inverter is not active or the
communication cable ( BMS /CAN ) between the inverter and LV HUB is not connected, the LV HUB with display a FAULT and
the Green Light will Blink