Structure And Function; Casing - Steca Elektronik StecaGrid 2020 Instrucciones De Instalación Y Manejo

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

Structure and function

7.1

Casing

3
9 1 8 7
10
Fig. 5: Components on the front and lower sides of the casing
The individual casing components are described in detail below.
744.711 | 12.20
Internal grid monitoring of the inverter (MSD = Mains monitoring with allocated
Switching Devices)
Working point producing the most power (Maximum Power Point)
Safety low voltage (Safety Extra Low Voltage)
The generator voltage present at the DC connection (photovoltaic voltage)
1 1
2
1 4
1 6 1 5
Hood
1 1
Display (monochrome, 128 x 64 pixels)
2
Type plate, serial number, warning notices
1 3
Operating buttons: ESC, , , SET (from left to right)
1 4
1x AC connection
1 5
2x RJ45 sockets (RS485 interface)
1 6
1x Minus DC connection (–) for solar modules (Multi-
7
contact MC4 DC socket, contact proof)
1x Plus DC connection (+) for solar modules (Multi-
8
contact MC4 DC socket, contact proof)
DC circuit breaker (interrupts the plus and minus inputs
1 9
simultaneously)
Termination (slide switch):
10
On: Termination switched on (slide switch at the right)
Off: Termination switched off (slide switch at the left)
See also the detail drawing below.
Off On
10
6 6
EN
7