SMA Sunny Boy Control Light - Manual (Page 79)

Sunny Boy Control Light Chapter 7: Appendix
SUNBCL-11:NE
- 79 -
SMA Regelsysteme GmbH
and informs you about the transmission results so that you can identify
transmission defects immediately.
•
Plug the extension cable into different sockets of the mains line you are
analyzing while continuously increasing distance to the inverter, and check
whether the communication still works. A communication breakdown from a
certain line length to the inverter on (< 30 m) indicates a disturbance from
external devices outside the household distribution (countermeasure:
suppression filter in the branch circuit).
•
Now reconnect the mains circuits one after the other and check if any errors
occur in the communication of Sunny Boy Control Light.
•
In case of communication disturbances disconnect every electric consumer on
the last connected circuit one after the other in order to identify the disturbing
device.
•
Leave disturbing devices disconnected from the mains and continue connecting
circuits and devices until all electric consumers are reconnected to the mains
except the disturbing ones.
Optimizing the Installation
•
Check whether the influence of disturbing devices can be reduced sufficiently
by just connecting them to another circuit resp. phase.
•
A junction line from the device to the Sunny Boy Control Light can help
reduce the filter expenditure in heavily disturbed installations.
Filtering Interference
•
Supply the section of the electric installation for Powerline communication with a
suppression unit.