Soltaro (4.5kWH + 5kWH) batteries with Synapse 5.0K+ / 5.0+ inverters - unmanaged

Ensuring smooth operation and correct configuration

Summary:

This application note includes all procedures to follow to ensure reliable and effective operation between a Soltaro battery and Synapse inverter. This system is classified as an “unmanaged” system and therefore all battery parameters need be set up on the inverter.

Overview:

It is recommended that the following are considered before commissioning such systems:

• All cables are correctly terminated, i.e. battery power cables.
• System is correctly sized according to the recommended maximum charge / discharge rates of these batteries:

Max charge / discharge rates:

4.5kWH = 90A at 1C

5kWH = 100A at 1C

• All battery parameters are set correctly on the inverter.

Specific technical details:

The following is the correct battery charging parameters used between the Synapse 5.0K+ and the Soltaro battery:

• Battery type: “USE”
• “Back to utility”: User defined, dependent on the choice of depth of discharge.
• “Back to battery”: Set this value as close to your float value as possible to ensure a proper charging cycle after discharge.
• “Bulk charging voltage”: Set this value to 56.2V.
• “float charging voltage”: Set this value to 55V.
• “Cut-off voltage”: Set this value to 48V.

Additional information:

• Before the collection of system components from Rubicon, please ensure that your battery has been pre-programmed by the technical support team.
• If the battery presents any fault or abnormal operation, these problems could include the following:
• Battery fault light. This error will present a red flashing LED on the battery status bar.
• Battery shutting down overnight.
• Battery not starting up the system, followed by a fault light.

please contact the technical support team from Rubicon.