WeCo 5K3-LV-HV
HeSU 5K3-LV HV
Page 67 of 69
V_1.1_21-Nov-2020_LV-HV
3.6.2.3 Low Battery – Force Charge
ATTENTION:
The HV connection cables must be disconnected; the force charge implies to follow the LV section rules.
THE FORCED CHARGE MUST BE PERFOMED AS SINGLE LOW VOLTAGE MODULE
SET THE DIP SWITCH AS PER THE PICTURE BELOW
ATTENTION:
Before performing any operation on the battery make sure that the
VOLTAGE
between the battery B + and B-
terminals in the terminal BLOCK LOW VOLTAGE SECTION is
ZERO (0Vdc)
and the
PANEL LIGHTS ARE OFF
.
Battery is in “Shutdown State”, only after the charging device is connected the operator can tun on the battery by pressing the RUN
button
Each Module must be electrically isolated from other modules, remove all the serial connections cables.
Preparation condition before forced charging:
Connect the charger or the inverter with charging capability to the B+ and B- of the
battery box to ensure charging capacity.
Forced charging approach:
Short press the battery power button, the battery RUN light will flash green, which means that the
battery is entering the compulsory charging mode. If the battery receives an adequate charging power (above 10 Amps/58V) within
90 seconds from pressing the button, the battery will continue to charge normally until a stable state is reached.
If the battery does not receive adequate charging power within 90 seconds after pressing the button, the battery will enter the
shutdown mode once again.
During the forced charging period the low battery LED will be steady orange up to an SOC of 10% at which point the low battery LED
will go out.
ATTENTION: Each module must be recharged at the same SOC. The Inspection must be done by using the RS232 and LV PC
software provided by WeCo tech. Service.
This process may take long time and the installer must be prepared to do this operation
ATTENTION: When the charging process of each module has been concluded, the serial connection must be restored by
following this manuals instruction.
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