Installing An Additional Battery Module - SMA COMMERCIAL STORAGE SOLUTION 30 System Manual

SMA Solar Technology AG
16.4

Installing an Additional Battery Module

Additional battery cabinets may be installed in this battery cabinet a maximum of six months after the battery cabinet is
first commissioned.
Procedure:
1. By measuring the voltage at -POL and +POL, verify whether the DC output voltage of each new battery module is
between 78.4 V and 78.6 V.
2. If the DC output voltage of a new battery module
3. is outside the range between 78.4 V and 78.6 V, contact Service.
4. By measuring the voltage at Charger+ and Charger-, verify whether the DC output voltage of each installed
battery cabinet is in the specified range.
5. If the DC output voltage of an installed battery cabinet is not in the specified range, contact Service.
6. Increase the state of charge of the battery cabinets already installed to 20%. To do this, charge or discharge the
battery.
7. Disconnect the battery and battery inverter from voltage sources (see Section 11, page 119).
8. Mount additional battery modules in the battery cabinet.
9. For the additional battery modules, connect the DC cables within the battery cabinet.
10. For the additional battery modules, connect the communication cables within the battery cabinet.
11. Recommission the individual battery cabinets.
12. Commission the inverter.
13. Reconfigure the inverter.
Also see:
• Positioning the battery cabinet ⇒ page 54
• Installing the battery management system ⇒ page 55
• Installing the battery modules ⇒ page 57
• Earthing the battery cabinet ⇒ page 79
• Connecting the External Switch to the Battery Management System ⇒ page 85
• Connecting DC Cables within the Battery Cabinet ⇒ page 83
• Routing DC Cables to the Inverter or DC Distributor in the Battery Cabinet ⇒ page 84
• Connecting DC Cables to the Inverter or DC Distributor in the Battery Cabinet ⇒ page 85
• Setting the Address and Terminator ⇒ page 94
• Connecting the Battery Communication System within the Battery Cabinet ⇒ page 80
• Connecting the battery communication system to the inverter ⇒ page 81
• Connecting the CAN Communication System ⇒ page 81
• Commissioning Secondary Battery Cabinets ⇒ page 96
• Commissioning the Primary Battery Cabinet ⇒ page 97
• Commissioning the Inverter ⇒ page 90
• Configuring the Inverter ⇒ page 91
• Requirements for Output Voltage and State of Charge ⇒ page 178
• Safety when Extending the Battery ⇒ page 178
System Manual
16 Extension of the Battery
ESSX-20-SH-en-10 179