SMA Solar Technology AG
PV Inverters in the Stand-Alone Grid System
Technical Description
SI5048-TEN093630
133
17 PV Inverters in the Stand-Alone Grid System
You will find further information on the topic of "selecting and using PV inverters in stand-alone grid
systems" in the download area at www.SMA.de/en.
To operate an SMA Solar Technology PV inverter in a Sunny Island system, you must set the
PV inverter to stand-alone grid operation.
You can set the PV inverter to "stand-alon grid operation" via Sunny Boy Control, Sunny WebBox or
Sunny Data Control.
17.1 Setting Stand-Alone Grid Operation
When the setting of the PV inverter has not take place at the factory, you must set the inverter at the
installation location to stand-alone grid operation.
You have several possibilities to set the PV inverter to stand-alone grid operation:
• Setting using the rotary switch (only within the first 10 operational hours)
• Setting via Sunny Boy Control, Sunny WebBox
• Setting via Sunny Data Control
You can only carry out the setting via the rotary switch on the PV inverter within the first 10 hours of
operation. Thereafter you must carry out the setting via Sunny Boy Control or Sunny Data Control.
Changing Grid-Relevant Parameters
To change grid-relevant parameters on the PV inverter (Sunny Boy, Sunny Mini Central or
Sunny Tripower) you need a personal access authorization, the SMA Grid Guard
password. Contac the SMA Serviceline to get your individual SMA Grid Guard password.
DANGER!
Feedback if there is an outage of the public grid. Death or serious burns when
working on the publc grid.
If you have set the PV inverter to stand-alone grid operation, it does not fulfill any country-
specific standards and regulations. Therefore if there is an outage of the public grid there
exists the danger of feedback.
•
Never
operate the PV inverter directly on the public grid when set to stand-alone grid
operation.
Summary of Contents for SI 5048
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