Structure And Function; Casing - Steca Grid 8000 Bedienungsanleitung

6.3.4 Abbreviations
Abbreviation Description
MSD
MPP
MPP tracker
SELV
V
PV
Tab. 5: Abbreviations
7

Structure and function

7.1

Casing

1 6
Fig. 5: Components on the front and lower sides of the casing
The casing components are described in detail below.
744.378 | 12.13
internal grid monitoring of the inverter
(MSD = Mains monitoring with allocated Switching Devices)
working point producing the most power
(MPP = Maximum Power Point)
controls the power of the connected module strings to match the MPP
safety low voltage
(SELV = Safety Extra Low Voltage)
the generator voltage present at the DC connection (photovoltaic voltage)
14
1
2
3
1 4
5
1 9
1 7 8
10
11
12
13
Hood
1 1
Display (monochrome, 128 x 64 pixels)
2
Type plate, warning notices
1 3
Operating buttons: ESC, , , SET (from left to right)
1 4
Front panel with mechanical protection
1 5
1x AC connection
1 6
DC circuit breaker (interrupts the plus and minus inputs
7
simultaneously)
2x RJ45 sockets (RS485 interface)
8
Stud bolt for fastening the optional grounding terminal
1 9
4x Minus DC connection (–) for solar modules (Multi-
10
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)
EN
47