Solar MD SS4143-11, Installation Manual

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Sunsynk
3.1.4. General information
3.1.4.1. For protection the battery will send the inverter one or more of
the following status commands.
3.1.4.1.1. Charge Enable - This tells the inverter that charging is
permitted. This will be disabled when the charge control
value is less than or equal to 50%. When the value is
less than 50% the inverter will discharge the battery
with 1.4A until either the actual voltage reaches the
charge voltage setpoint value or the charge control
current exceeds 0A.
3.1.4.1.2. Discharge Enable - This tells the inverter that
discharging the battery is permitted. This will be
disabled when the discharge control value is less than
or equal to 50%.
3.1.4.1.3. Request force charge I - When the battery's discharge
control drops below 30% it will send this command to
the inverter forcing it to charge the battery. If no charge
source (Grid or PV) is available the inverter will go into
error mode (F56 DC_VoltLow_Fault) and will stop
supplying the load until another source of energy is
available.
3.1.4.1.4. Request force charge II - When the battery's discharge
control drops below 15% it will send this command to
the inverter forcing it to charge the battery. If no charge
source (Grid or PV) is available the inverter will go into
error mode (F56 DC_VoltLow_Fault) and will stop
supplying the load until another source of energy is
available.
3.1.5. Communication Cable Connection
It is recommended that CAT5e cable be used. The termination resistor
on the last battery should be ON, the rest should be OFF.
Note: When connecting multiple inverters refer to the inverter manual
for more information.
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