SMA SI 5048, Техническое описание

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SMA Solar Technology AG Multicluster Operation
Technical Description SI5048-TEN093630 131
16.6 Communication Test
Using the parameter "510.08 TstClstCom" a communication test between the clusters can be started
from each master device of a cluster. Switch only one master device of the extension cluster to
"Transmit".
The parameter "510.09 ClstComStt" delivers the status of the test. Query this parameter at all the
master devices, including the one that is broadcasting. If the communication test is successful, the
status "OK" appears.
16.7 Automatic Frequency Adjustment (AFRA)
In multicluster operation, automatic frequency adjustment (AFRA) can only be activated at the main
master. By default, it is set to "Enable".
16.8 Firmware Update
Carry out the update on all masters of the individual
clusters via an SD card. All extension masters must have
completed their updates! The message shown on the right
appears in the display.
After the update of the masters has been carried out,
carry out an automatic update of the slaves.
Stopping the Sunny Island
It is recommended to stop the entire cluster network, and to deactivate the loads insofar as
this is possible.
DC Circuit Breaker
Do not activate the DC circuit breaker during the firmware update!
Starting the Multicluster System
Start the system only after the firmware update has been carried out on all Sunny Islands.