Changing Slave Addresses in a Cluster
Qualified person
If you want to change slave addresses (e.g. after replacing a Sunny Island inverter), you can assign the slaves a new address via the user interface. Only the address is changed; all other configurations remain as they were, e.g., assignment of the clusters in a multicluster system. When replacing a master, you must reconfigure the cluster (see the quick reference guide for the relevant system for configuring single-cluster operation or multicluster operation).
Requirements:
All Sunny Island inverters must be switched off.
Serial numbers of the inverters and assignment of line conductors:
Serial number | Phase assignment |
|---|---|
Serial number of the main device | Line conductor / phase L1 |
Serial number slave 1 | Line conductor / phase L2 |
Serial number slave 2 | Line conductor / phase L3 |
Procedure:
- Switch the slaves on first, and then the master ( > Switching on the System).
- Activate the user interface of the inverter ( > Establishing a connection to the user interface).
- Log in as Installer ( > Logging In and Out of the User Interface).
- Start the installation assistant.
- Select [Save and next] for each step up to the step System setup.
- For a single-phase system, set the parameter Type to Single phase.
- For a three-phase system, set the parameter Type to Three-phase.
- Under System devices, set the parameters Serial number and Phase assignment as indicated.
- Select [Save and next] until the installation assistant closes.
- Start the system ( > Starting the System).