CAN DATA Combiner Manual
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CAN DATA COMBINER FOR HV SYSTEMS XP SERIES
From 3~8 Clusters
DT 8-24 V1.0
When this combiner is used on TYPE A or TYPE B HV BOX, the firmware of all the HV BOX connected to the
DT8-24 must be updated.
Last firmware version is always available on wecobatteries.com/download-area or write to
service@wecobatteries.com.
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ATTENTION: This is a CAN communication device, it is very
sensitive to shocks and electromagnetic fields.
ATTENTION: This device must be powered from the 24V
terminals
ATTENTION:
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.
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Statement: ............................................................................................4
1 Preface ...............................................................................................4
2 Information in this Manual ................................................................ 4
2.1 About this Manual .................................................................................................................. 4
2.2 Use Range ................................................................................................................................ 4
2.3 Additional Information .......................................................................................................... 4
2.4 Symbol Used ............................................................................................................................ 4
3 Safety Precautions ............................................................................. 5
3.1 Warnings and Notification .....................................................................................................5
3.2 Safety Guidelines .................................................................................................................... 5
4 Product Overviews .............................................................................5
4.1 Produce Introduction ............................................................................................................. 5
4.2 Product information ............................................................................................................... 5
5 System Installation .............................................................................5
5.1 Installation notice ................................................................................................................... 5
5.2 Package information and system configuration list ............................................................5
5.2.1 Parts list ..................................................................................................................................................... 6
5.2.2 Installation Tool ......................................................................................................................................... 6
5.2.3 Personal protective equipment ...................................................................................................................6
5.3 Installation ...............................................................................................................................7
5.3.1 Product Dimensions ...................................................................................................................................7
5.3.2 Installation method.................................................................................................................................... 7
5.4 Wiring definition .....................................................................................................................7
5.4.1 Terminal function and definition ............................................................................................................... 7
6 Operation steps ................................................................................11
Appendix 1- Product size table ............................................................12
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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.
Statement:
This product is a combiner for HV parallel system from WeCo Batteries.
The name of the products of the following description will be "combiner or DT8-24".
Due to product upgrades or other reasons, this document will make appropriate adjustments.
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.
For more information, please contact us.
1 Preface
Thank you for choosing our combiner products. We will provide you with quality products and reliable after-sales service.
To protect the safety of users and products, please read the product features, structure, operating standards, maintenance and
troubleshooting details provided in this manual.
2 Information in this Manual
2.1 About this Manual
This is the Manual for combiner products, the manual introduces combiner product’s information, guidance for use, safety precautions
and common faults and troubleshooting. Use or install equipment must strictly follow the manual contents.
2.2 Use Range
This manual applies only to combiner products.
2.3 Additional Information
Specification of the product can be changed without any notice to customers for the product improvement.
2.4 Symbol Used
Symbols meanings：
CAUTION：
CAUTION represents hazardous situations that can cause minor damage to the equipment or personal injury if not avoided.
NOTICE：
NOTICE represents the situations, which can cause damage the performance of the product if not avoided.
INFORMATION：
INFORMATION provides tips that are valuable for optimum installation and operation of the product.
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3 Safety Precautions
3.1 Warnings and Notification
Installation environment requirements: DT8-24 is designed for household and light commercial application.
It must be installed in a location complying with IP20. 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.
3.2 Safety Guidelines
CAUTION：
During the Installation and using, it must be avoid short-circuit between the input poles / terminal, all electrical connections on the
household energy storage battery and their accessories must be operated by qualified professional personnel
In the event of improper operating conditions, damage, misuse and/or abuse, the battery may present potential safety hazards such as
overheating or electrolyte fumes, and the user must follow the safety precautions and warnings described in this section. If any of the
following precautions are not fully understood or have any problems, please contact customer service for assistance. The safety section
may not include all regulations in your area, and the use of household energy storage batteries must review applicable local laws and
regulations as well as industry standards for the product.
Installers should not wear metal objects such as watches to install batteries to avoid short circuits and personal injury.
CAUTION：
The combiner is voltage and radio sensitive, keep away from any source of disturbs and or radio equipment or high frequency devices not
compliant with the CE/EMC 61000 for domestic application.
4 Product Overviews
4.1 Produce Introduction
DT8-24 Combiner is designed for HV BOX parallel control system.
It is recommended that you do not use the device beyond the functions and performance described in the product manual. Substitute
use, random variations, and use of components not sold or recommended by WeCo will void the product warranty.
4.2 Product information
Table 1: Product specification
Battery model
Specification parameter
DT8-24 Combiner
Parallel of 2 or more Hv BOX via Daisy Chain
5 System Installation
5.1 Installation notice
The DT8-24 is a DIN rail mounted combiner and needs to be installed inside a protected and shiels panel.
5.2 Package information and system configuration list
The combiner is packed in cartons, and the components assort with the combiner case.
Inspect the carton content carefully before start the operations.
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5.2.1 Parts list
5.2.2 Installation Tool
5.2.3 Personal protective equipment
Cable Color
Cable Size
Cable Length
QTY
Description
GREY
CAT5
250cm
N° 1
Both sides RJ45 with only CAN H and CAN L
DIN RAIL SUPPORT
N° 1 Set
Staff and Screws for din rail installation
CONVERTER
N° 1 Set
Ac/Dc Power Supply 230Vac-24Vdc
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5.3 Installation
5.3.1 Product dimensions
190Lx230Wx40h
1.5kg
5.3.2 Installation method
5.3.2.1 Rail installation
Step 1：mounting rail DIN TYPE.
Step 2: fix the combiner on the DIN rail.
Step 3: Secure the interlocking spring and make sure the Combiner is properly secured on the DIN rail.
Figure 1: Back Side support
5.4 Wiring definition
5.4.1 Terminals function and definition
Picture 2: Combiner connection hub layout
DIN
INTERLOCK
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HUB Wiring definition
Name
Function
L+
24V+
L-
24V-
PE
GND
DI1+
Digital input reserved
DI and DO
DI1-
DI2+
DI2-
DO1+
DO1-
DO2+
DO2-
CAN1/HVBOX
CAN port to HVBOX
CAN2/INVERTER
CAN port to inverter
RS232/PC
RS232 to PC
Debug
CAN1 and CAN2 debug port
ON/OFF
ON/OFF button with LED
ALARM
Alarm LED
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RJ45 PIN OUT DEFINITION
CABLE TYPE CN-1
Daisy Chain Connection between HV BOX CAN PORTS (T568B), and between HV Box and DT8-24 CAN1/HVBOX
CABLE TYPE CN-2
RJ Connection from CAN2/INVERTER Port of the DT8-24 CAN Combiner to the Inverter CAN INPUT (follow the Inverter PIN OUT on the
other end).
RS232-USB Programming Cable
PC software /RS 232 Converter cable for Debug / programing/Upgrade (Operator Only)
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System connection (5k3 XP example)
CAN 2B-CAN 2B (two wires)
CAN 2A-CAN 2A (two wires)
CAN 2B-2B (two wires)
CAN 1/HV BOX
24Vdc +
24Vdc -
CAN 2A (two wires)
According with DIP Scheme
CN- 2 RJ45 PIN 8= CAN L PIN 7=CAN H
TO INVERTER
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CAN ID for Parallel Operations ( 1 to 8 5k3 XP example )
HVBOX ID for
PARALLEL DT8-24
DIP 1
DIP 2
DIP3
DIP4
DIP5
DIP6
DIP7
DIP8
1
OFF
OFF
OFF
OFF
OFF
OFF
ON*
OFF
2
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
3
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
4
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
5
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
6
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
7
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
8
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
*For 14k3 multi cluster applications the first HV Box must have all DIP OFF. See the specific battery manual for more details.
6Operation steps
Step 0: Set all HV Box protocol to “PARALLEL HV CAN”.
Step 1:Connect CAN-BATTERY/CAN-INVERTER communication cable.
Step 2:Connect external DC24V power supply with a AC/DC power supply (not included).
Step 3:START UP: Press ON/OFF button for 0.5 seconds, the combiner will start.
Turn ON each HV BOX Breaker.
The HV BOX connected in daisy chain (ATTENTION: USE TWO WIRES CONNECTION CABLE) will self-address.
Refer to the battery manual for HV BOX settings.
Step 4:SHUT DOWN: Press ON/OFF button for 4 Seconds, the combiner will start the shutdown operation, Combiner will communicate
with all the HV BOX connected and will initiate the HVBOX shutdown shut down process.
The HV BOX can now be turned off by disengaging the Main Breaker of each HV BOX
Note:
When the DT8-24 detects a system fault, the ALM led is flash and the inverter will detect a BMS fault between inverter and battery.
The inverter specific protocol only needs to be set in the DT8-24 Can Combiner using the appropriate software. The hv boxes must have
"PARALLEL HV CAN” for multicluster operations.
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Appendix 1- Product size table
Product
model
Outline dimension
DT8-24
/