Multicluster Operation SMA Solar Technology AG
138 SI5048-TB-TEN110340 Technical Description
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 master
devices, including the transmitting device. If the communication test is successful, the status "OK"
appears.
16.7 Automatic Frequency Control (AFC)
In Multicluster operation, automatic frequency control (AFC) can only be activated at the main master.
This function is activated using the "250.11 AfraEna" parameter.
16.8 Updating the Firmware
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
is displayed.
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 update process!
Starting the Multicluster system
Start the system only after the firmware on all Sunny Island devices has been updated.
To Next Page
Loading...
