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4.0 CONFIGURING VICTRON PRODUCTS
4.1 VE.Configure Settings
You will need the latest firmware on all connected devices. This section presumes familiarity with VEConfigure software.
These settings are for an off-grid application. These parameters once set will become the default values used
if communication with the Rolls LFP battery is interrupted for some reason. During normal operation the charge
characteristics are governed automatically by the CCGX via DVCC, with instructions from the connected Rolls LFP battery.
However it is necessary to set the discharging parameters for DC input low shut-down found under the Inverter Tab.
After setting the parameters, ‘send’ all parameters to the inverter and CCGX. Restart the CCGX after completion.
General Tab S24-2800LFP S48-6650LFP
Overruled by remote (1) Enable Enable
Enable battery monitor Enable Enable
SoC when Bulk finished (2) 95% 95%
Total battery capacity (per battery installed) installed x 110 Ah installed x 130 Ah
Charge efficiency (2) 95% 95%
Inverter Tab S24-2800LFP S48-6650LFP
DC input low shut-down (3) 24.0 V 48.0 V
DC Input low restart (4) 26.0 V 52.0 V
DC input low pre-alarm (5) 25.5 V 51.0 V
Enable Rolls LFP (6) Disable Disable
Charger Tab S24-2800LFP S48-6650LFP
Enable charger Enable Enable
Battery Type (2) Blank Blank
Lithium batteries (2) Enable Enable
Charge curve (2) Select: Fixed Select: Fixed
Absorption voltage (2) 27.2 V 54.4 V
Float voltage (2) 26.8 V 53.6 V
Charge current per battery installed
(Recommended < Maximum)
installed x
(78 A < 110 A)
installed x
(92 A < 130 A)
Repeated absorption time (2) (7) 1.0 < 3.0 Hr 1.0 < 3.0 Hr
Repeated absorption interval (2) 7.0 Days 7.0 Days
Absorption time (2) (7) 1.0 < 3.0 Hr 1.0 < 3.0 Hr
(1) Enabled is recommended.
(2) Precautionary setting as they are ignored during normal operation and communication with Rolls LFP lithium battery.
(3) The lowest operating voltage allowed, increase voltage as required.
(4) Restart voltage after DC input low shut-down, recommended to be set to the minimum value (minimum varies according to the DC Input low shut-down
value).
(5) 51.0 V value (approximately 15% SoC) will trigger low battery warning, increase or decrease as preferred.
(6) ‘Enable Rolls LFP’ has no relation to the Rolls LFP battery. Refer to Victron manuals for information on setting and function.
(7) The recommended minimum is 1.0 hour. A longer period of time may be required to compensate for multiple batteries to achieve a smooth completion of charge.
NOTE
Confirm the Float Voltage after completing the installation of any Victron ‘Assistants’,
and if necessary reset the Float Voltage back to 26.8 V / 53.6 V.
