2 safety instructions, Safety instructions – SMA SMC 5000 Installation User Manual
Page 9

SMA
Technologie AG
Safety Instructions
Installation Guide
SMC50_60-11:SE2006
Page 9
2 Safety Instructions
Check your plant configuration and the
string sizing with „Sunny Design“ (avail-
able at www.SMA.de) or with the Sunny
Mini Central Hotline before you start with
the installation. Exceeding the specifica-
tions with the input voltage will destroy
the Sunny Mini Central. Overvoltage on
the DC side can even cause dangerous ex-
plosions of the Sunny Mini Centrals input
capacitors and explosions of the electro-
lytes coming from the exploded capaci-
tors.
Work on the Sunny Mini Central with the lid removed must be
carried out by a qualified electrician. Hazardous and even lethal
voltages can be encountered within the enclosure. Before working
on the Sunny Mini Central with the lid removed, the AC and DC
voltages MUST be disconnected from the Sunny Mini Central and it
must be sure that all capacitors are discharged.
The Sunny Mini Central must be disconnected from the mains and
precautions must be taken to prevent the grid being reconnected.
In addition, the connections to the PV generator must be
disconnected.
After isolating the AC and DC voltage you must wait approx. 30
minutes for the capacitors in the Sunny Mini Central to discharge.
Only then is it safe to open the unit by removing the lid. You must
also make sure that no voltage is present in the device.
The electronics inside your Sunny Mini Central 5000/6000 is
vulnerable in terms of electrostatic discharge. Be sure to be
connected to ground (e.g. the enclosure of the Sunny Mini Central)
before handling anything within the enclosure of the Sunny Mini
Central.
Betrieb
Operatio
n
Erdschlu
ss
Earth Fa
ult
Photovo
ltaik-W
echselric
hter
Photovo
ltaic inv
erter
Störung
Failure