SMA Sunny Boy Control Light - Manual (Page 78)

Sunny Boy Control Light Chapter 7: Appendix
SUNBCL-11:NE
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SMA Regelsysteme GmbH
house electricity distribution
connection to
public grid
Sunny Boy
Control Light
Sunny Boy Sunny Boy
D
Blocking
Filters
Damping
Module
interfering device
Fig.7.10: Interference suppression from several communication systems
7.2.2 Interference Suppression
If the data transmission via Powerline is interrupted from time to time, or cannot be
established at all, the transmission line has to be cleared. For this purpose please
take the following steps:
Identification of Interference Sources
•
Starting point of the examination should be a functioning data transmission, if
possible. Please disconnect all electric devices from the mains (it is sometimes
not sufficient merely to switch them off! Please think also about three-phase
current consumers!) which are connected to the same line as the devices and
the Sunny Boy Control Light. Switch off all remaining fuses in the household
distribution. Now connect the Sunny Boy Control Light with an extension
cable to the socket with the shortest wiring length to the inverter. Start the
function "
Diagnosis - Communication Diagnosis - Communication Diagnosis - Communication Diagnosis - Communication
" and select the device to be
monitored. Sunny Boy Control Light now tries to communicate with the device