WeCo Srl Italia
www.wecobatteries.com
4K4 PRO V 1.11 28-9-2021
8
CELL DAMAGE
Battery box in the state of no
charge and no discharge, a cell
voltage and most of the other
cells voltage difference greater
than 200mV.
Please contact the after-
sales service.
The real-time display of the cell
voltage on the monitoring software is
as follows:
9
FIRST
PARALLEL
CONNECTION
FAILURE
OF
BATTERIES
When the batteries are first
paralleled, start the system,
slave battery fault light
flashing. No sound from the
slave battery relay action, no
voltage output.
Measure the positive and
negative voltage of each
battery, if the voltage
difference between the
batteries is greater than 2V,
please reduce the voltage
difference to less than 2V to
try parallel connection
10
MASTER-SLAVE
MACHINE
COMMUNICATION
EXCEPTIONS
Slave battery fault light
flashes, the master machine
cannot control slave battery
Check
that
the
communication
cables
between the master battery
and the slave batteries are
securely connected
11
BATTERY
OR
PARALLEL BATTERY
SYSTEM SHUTDOWN
CANNOT START
There is no alarm information
in the battery, but the
batteries are not working
properly
Please contact the after-
sales service
12
OTHER EXCEPTIONS
Humidity, cell expansion, frost-
Defrost, unbalances etc.
Please contact the after-
sales service
FAULT RED
