WeCo 5K3-LV-HV
HeSU 5K3-LV HV
Page 23 of 69
V_1.1_21-Nov-2020_LV-HV
2.4.1 Low Voltage Single Stack Power and Data Connections (5-Modules)
2.4.1.1 Proceed with the physical installation of the desired quantity and configuration of the battery modules
following the installation sequences and guidelines as described Section-1 of this manual.
2.4.1.2 Connect the power cables as indicated below, making sure that the batteries are
OFF
(check the button
LED on the bottom) and always measure the terminals with a multimeter to check for
ZERO VOLTS.
TION
:
Information:
When multiple battery boxes are connected together is possible to choose between ‘’capacity’’ chain
series or parallel to increase capacity and peak. In case of parallel the parallel battery and inverter can only communicate
through CAN interface, and the communication between the batteries will be through RS485
Attention:
Be sure to follow the above method of “daisy chaining” the RS 485 connections, starting at Port-B on the
upper battery module then into Port-A on the next module and our of Port-B then into Port-B on the next module, and so
on.
Caution
:
B+
interface is always positive,
B-
interface is always negative; GND is for the parallel battery grounding port.
OUTPUT Positive from the UPPER module
On the top module connect RS 485 series to Port-B
On the next module go in on Port-A and out on Port-B
Continue to “Daisy Chain” in this way until the bottom
module.
CAN-BMS to Inverter
Power Button with LED Indicator
BUS BAR FOR Stack Connections
DIP Switch Address
OUTPUT Negative from the LOWER module
RS232 Monitoring Port