SMC Networks Sunny Mini Central SMC 5000A - Manual (Page 55)

SMA Technologie AG Commissioning the Sunny Mini Central
Installation Guide SMC50A_60A-IEN073320 Page 55
8.2 LEDs
After a normal grid connection of the Sunny Mini Central, it takes approximately one
minute until the following blink code is displayed. For this, the DC and AC inputs must
be correctly connected and the circuit breaker must be activated. The blink codes
shown before that only have the purpose of indicating the initialization of the Sunny
Mini Central and the process of controlling whether the power supply requirements are
fulfilled.
PV Overvoltage
1. Check the DC input voltage again to make sure it is within the limits stated in
section 6.3.1 "Requirements" (Page 27). If the input voltage is too high, contact
the planner / installer of the PV generator for assistance.
2. If despite checking the DC input voltage the blink code occurs again when the PV
generator is connected to the Sunny Mini Central, disconnect the PV generator
from the Sunny Mini Central again and contact SMA (see section 15 "Contact"
(Page 92)).
If the blink code shown below appears, the AC and DC cables must be
disconnected from the Sunny Mini Central again immediately! There is a
risk of damage to the Sunny Mini Central resulting from excessive DC
input voltage.
The yellow LED lights up 4
times in succession.
The message is repeated 3 times and
then begins again.