Steca StecaGrid 8 000+ 3ph - Structure and Function; Casing

6.3.4 Abbreviations
Abbreviation Description
MSD internal grid monitoring of the inverter
(MSD = Mains monitoring with allocated Switching Devices)
MPP working point producing the most power
(MPP = Maximum Power Point)
MPP tracker controls the power of the connected module strings to match the MPP
SELV safety low voltage
(SELV = Safety Extra Low Voltage)
V
PV
the generator voltage present at the DC connection (photovoltaic voltage)
Tab. 5: Abbreviations
7 Structure and function
7.1 Casing
1
14
2
5
3
12
11
10
17 1
9
816
13
14
11
Hood
2
Display (monochrome, 128 x 64 pixels)
13
Type plate, warning notices
14
Operating buttons: ESC, , , SET (from left to right)
15
Front panel with mechanical protection
16
1x AC connection
7
DC circuit breaker (interrupts the plus and minus inputs
simultaneously)
8
2x RJ45 sockets (RS485 interface)
19
Stud bolt for fastening the optional grounding terminal
10
4x Minus DC connection (–) for solar modules (Multi-
Contact MC4, contact proof)
4x Plus DC connection (+) for solar modules (Multi-Con-
tact MC4, contact proof)
Ventilation grill (air inlet)
Holes for fastening the mounting surface
Ventilation grill (air outlet)
Fig. 5: Components on the front and lower sides of the casing
The casing components are described in detail below.
47
744.378 | 12.13
EN