Operating Manual

Installation, assembly and commissioning for
the first time
Version 1.1 Page 60 of 92
4.9 Configuration of the ESS battery
4.9.1 System structure
- In a complete system of batteries connected in parallel, configure one battery as a “master”.
- In a complete system of batteries connected in parallel, configure all other batteries as “slave”.
- You can connect up to 6 batteries with each other in parallel.
4.9.2 Addressing the batteries
- Configure each battery with an unambiguous and unique address.
Numbers 1 to 12 are available.
Each battery must have a different bus address (device address).
4.10 Definition of the battery mode during commissioning and parameter
configuration
Figure 4-25: representation of the BMZ ESS service tool
4.10.1 Single:
This the delivery status of every BMZ ESS 7.0 battery ex-works.
The mode is used for the status: 1 BMZ ESS 7.0 battery operated at one SMA Sunny Island inverter.
4.10.2 Master:
This is the status of a BMZ ESS 7.0 battery in a group of multiple BMZ ESS 7.0 batteries connected in parallel.
Important: Only one battery may be configured as a master.
The mode is used for the status: multiple BMZ ESS 7.0 batteries are operated at one or more SMA Sunny
Island inverters.
4.10.3 Slave:
This is the status of multiple BMZ ESS 7.0 batteries in a group of multiple BMZ ESS 7.0 batteries connected in
parallel.
Important: Each battery, except the master battery, must be configured as a slave battery.
The mode is used for the status: multiple BMZ ESS 7.0 batteries are operated at one or more SMA Sunny
Island inverters.