Pylon Technologies LV-Hub User manual

Communication HUB
LV-HUB Product Manual
With US-C/US5000/UP5000
Information Version: V1.0
Pylon Technologies Co., Ltd.
No. 73, Lane 887, ZuChongzhi Road, Zhangjiang Hi-Tech Park
Pudong, Shanghai 201203, China Zip Code: 201203
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Website: http://www.pylontech.com.cn

Catalog
1. Introduction......................................................................................................................................................1
2. Specifications....................................................................................................................................................1
3. Equipment Interface Instruction ................................................................................................................2
4. Communication Cable Deployment.........................................................................................................3
4.1 Wiring diagram .............................................................................................................................................4
4.2 Communication Cable definition ............................................................................................................4
4.3 Communication Cable wiring sequence...............................................................................................5
5. Trouble shooting.............................................................................................................................................6

1
1. Introduction
LV-Hub is the CAN communication hub for multiple 48V battery groups in parallel
connection.
This manual is specified for connection with US2000C/US3000C/US5000/UP5000
batteries.
2. Specifications
Item
Parameter
Operating voltage range
48 Vdc
Communication
interface
CAN/RS485
System Consumption
2W
Size
442*190*44mm
Protection degree
IP20
Weight
3.0kg
Operation Life
15 years
Working temperature
-20~60℃
Storage temperature
-40~80℃
CAN (Max 25 groups)
Baud rate: 500K; terminal resistance: 0/120Ω

2
3. Equipment Interface Instruction
No.
Part
Silk-screen
Function
1
Dry signal
Function reserve
2
Reset Switch
Button
RESET
Press 2 seconds and then system will
restart.
3
Dip switch
1 - 6
Dip 6:
Up：CAN OUT terminal resistance 120Ω
Down：0Ω
4
RJ45
CAN OUT
CAN output port (only upper port is for
using)；
5
RJ45
RS232
Debug
6
RJ45
CAN IN
Connect to port 0(only for CAN
communication);
7
LED
STATUS
Please see LED Indicators Instructions.
8
LED
NUMBER/BIN 1-4
Shows linked in battery group quantity with
binary code. Please see LED Indicators
Instructions.
9~16
RJ45
0; 1; 2; 3; 4; 5; 6; 7.
Only uses 0~5. Please see LED Indicators
Instructions.
17
Switch
ON/OFF
Turns the LV-HUB ON/OFF.
18
48VDC input
48V DC
Power supply: take 48VDC power from
outside (from AC/DC adaptor).

3
Definition of RJ45 Port Pin
No.
CAN OUT
RS232 Pin
1
---
---
2
GND
---
3
---
TX
4
CANH
---
5
CANL
---
6
---
RX
7
---
---
8
---
GND
LED Indicators Instructions
Status
●
Only the HUB is turned ON, it lights once.
●
No battery connected or at least one group is off line.
When battery group is reduced it will alarm (in red), but
when battery group is added in it will no alarm.
1
2
3
4
Green flash; connected battery groups number
●
1 group
●
2 groups
●
●
3 groups
●
4 groups
●
●
5 groups
●
●
6 groups
●
●
●
7 groups
4. Communication Cable Deployment
Precautions:
1. Each communication HUB connects max 6 battery piles.
2. Each battery pile can configure max 16 US2000C/US3000C/UP5000/US5000.
3. When using US2000C/US3000C/UP5000/US5000, the multiple group connection
under RS485 communication DONOT require a LV-HUB. The wiring diagram please
refer to the corresponding battery model operation manual.

4
4.1 Wiring diagram
4.2 Communication Cable definition
Communication Cable types:
1. Cable ○ 1 /○ 2 /○ 4 are standard Ethernet cable (8 pin direct-pin cable).
2. Cable ○ 3 is to connect LV-HUB and first master battery, the first 3 pins on the port
of battery side should be NULL, or use WI0SCAN30RJ1 cable inside external cable
kits.
3. Cable ○ 5 is to connect LV-HUB and the inverter, the first 3 pins on the port of
battery side should be NULL, and the pinout is 4H5L on battery side. The pinout on
inverter side shall varying depends on the inverter instructions.
Communication Cables connection:
Cable ○ 1 : Port 1 of first battery connect to port 0 of next battery
Cable ○ 2 : The B/485 port of first master battery connect to A/CAN port of next group’
master battery; the B/RS485 of last group master battery is empty.
Cable ○ 3 : The A/CAN of first master battery connects to LV-HUB port 1-7 freely.

5
Cable ○ 4 : On the LV-HUB, the CAN IN connects to port 0.
Cable ○ 5 : LV-HUB CAN OUT port connect to inverter CAN port.
4.3 Communication Cable wiring sequence
1) After finish the communication cable connection, follow the product manual of the battery
to connect the battery power cable in parallel: each pair of cable hold max 100A constant
current. Connect enough pairs of cable based on calculation of system current.
2) Suitable protection breaker between battery system and inverter is required.
3) connect power cable of LV-HUB.
4) The address of the LV HUB must be: 000001. All ADD Dip switches of the batteries as
default (all UP).
5) Boot up every single battery, with the SW button in sequence1st string master battery - 2nd
string master battery - … 6th string master battery. After all batteries waked up and buzzer
of master battery in group1 rings 3 times. Means all groups are online.
6) Change the dip switch of ONLY the master battery in group1 to 0100.
7) Then connect communication cable between LV-HUB and master battery in group 1(using
proprietary RJ cable with PIN 1-3 null). Use that specific cable, otherwise, communication
won't work.

6
8) Then turn ON LV-HUB. You will hear the LV HUB Beep. Then all the groups connected shall
be shown on the LED.
9) Then connect the LV-HUB to the inverter with the correct pinout at both battery side and
inverter side. Battery side always use pin4 as CAN-H and pin5 as CAN-L.
5. Trouble shooting
Communication related problem
Appearance: unable to communicate with inverter
Solution: check pinout, communication cables connection and battery status
Address related problem
Appearance: The number of address assignments does not match the actual rack number
Solution:
1) Check communication cable connection and restart the whole system
2) Upgrade LV-HUB
Functional related problem
Appearance: unable to be turned on
Solution: check if the DC output is 48V and if power cable is in good condition.
Connection related problem
Appearance: mixing using USB series with USC series batteries
Solution: for example, mix using 8 US2000 and 2 US2000C. LV-HUB should be used and 2
US2000C batteries become master battery separately.
Excluding the points above, if the faulty still cannot be located, turn off battery and LV-HUB then
contact your local distributor.