SMA SUNNY TRIPOWER CORE1-US Instrucciones De Instalación página 22

4 Product Overview
String-failure detection
The string-failure detection measures the total current of every input and continuously calculates the
mean values for the inputs in question. The total currents are compared with the mean values. If a
total current exceeds or falls short of the mean value by the set tolerance value, an event is
reported. Marginally increased total currents are reliably detected over several query intervals and
distinguished from typical current fluctuations of the PV array. String-failure detection is deactivated
by default and must be activated. In addition, the tolerance value can be set via the user interface
and the mean values read off.
Surge arrester type 1 and 2
On the AC and DC side, the inverter is equipped with slots for type 1 and 2 surge protection
devices. The surge protection devices limit dangerous overvoltages. The surge protection devices
can be retrofitted.
SMA ArcFix
SMA ArcFix is an Arc Fault Circuit Interrupter (AFCI). With this function, the inverter effectively
detects arcs on the DC side and interrupts them. The arc fault circuit interrupter SMA ArcFix is listed
according to UL 1699B Ed. 1 and meets the requirements according to the National Electrical
®
Code
. A detected electric arc causes the inverter to interrupt feed-in operation. To restart feed-in
operation, the operational disruption which has occurred must be reset. Alternatively, the arc-fault
circuit interrupter can be activated without inhibiting operation. Depending on the country data set,
arc fault detection is activated or deactivated by default. If the installation conditions permit this,
you can change the default setting.
SMA Smart Connected
SMA Smart Connected is the free monitoring of the product via the SMA Sunny Portal. Thanks to
SMA Smart Connected, the operator and qualified person will be informed automatically and
proactively about product events that occur.
SMA Smart Connected is activated during registration in Sunny Portal. In order to use SMA Smart
Connected, it is necessary that the product is permanently connected to Sunny Portal and the data
of the operator and qualified person is stored in Sunny Portal and up-to-date.
Universal mounting system (UMS_Kit-10)
The universal mounting system enables wall mounting of the inverter or serves as platform for higher
mounting on the ground. The universal mounting system is available as an accessory.
4.4 LED Signals
The LEDs indicate the operating state of the product.
LED signal
The green LED is flashing
(two seconds on and
two seconds off)
The green LED flashes
quickly
22 STP33-62-US-41-IA-xx-14
Explanation
Waiting for feed-in conditions
The conditions for feed-in operation are not yet met. As soon as the
conditions are met, the inverter will start feed-in operation.
Update of central processing unit
The central processing unit of the inverter is being updated.
SMA Solar Technology AG
Installation Manual