Stopping The Sunny Island 5048; Failures - SMA Sunny Island 5048 Installation Instructions Manual

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Technologie AG
Connecting External Sources

14.1.9 Stopping the Sunny Island 5048

If the Sunny Island 5048 is stopped by the user, the generator is immediately
disconnected. The generator is then stopped (generator request, GnReq, is disabled).
The power down phase (Cool) is skipped and the system transitions into the stop time.
If the generator is started directly at the generator management box or
the generator, it can only be stopped there again. Stopping the Sunny
Island 5048 only disconnects the generator and the system transitions into
the stop time (Lock).

14.1.10 Failures

Reverse Power
If the reverse power ("#242.13 GnRvPwr" parameter) set for the "#242.14 GnRvTm"
time is exceeded, the generator is disconnected and stopped. The power down time
(Cool) is skipped and the system transitions into the minimum stop time (Lock). After
reverse power, connection is blocked for at least "#230.02 ExtLkTm" or "#242.09
GnStpTmMin".
Generator Failure
If a generator failure is detected (failure on the master phase), the generator is
disconnected immediately and a stop signal occurs on generator. Afterwards, the
system transitions into the minimum stop time (Lock).
Generator Phase Failure
The failure of a phase (e.g. broken fuse) on a slave device is treated as a phase failure.
The slave device then disconnects this phase. If the phase is detected as being available
again, it is reconnected after the warm up time "#242.12 GnWarmTm" has expired.
The phase failure on the master device is treated as a generator failure (see above).
Slave Device Failure
If a slave device fails, the system continues to operate using both the remaining devices
of the cluster as well as those on the generator.
Technical Description
SI5048-11:EE4206
Page 109

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