Operation and installation manual
Page 29 of 96
(PVI-STRINGCOMB (-S, -MC, -S-MC) - Rev:1.0)
6.3.2 Signal inputs and outputs (Ref.§6.1 item C, Figure 6-1)
The device allows access to signals terminal board (Figure 6-5) with no need to
remove the Plexiglas protections located at the live areas. This section deals with
connection, by the user, of the input and output signals of PVI-STRINGCOMB(-
S). (Ref.§9.3)
Figure 6-5: Terminal board for the connection of the analogue inputs
6.3.3 Overvoltage protection - DC side
The PVI-STRINGCOMB(-S) features a built-in device for overvoltage protection,
with protection fuses (Figure 6-2 item F). If the protection trips, the control unit
detects the problem and warns the user (through the software or the inverter
display). The protection allows for a quick replacement of the faulty cartridges that
could be viewed through the sight glass.
Presence of the ground cable connected to the relevant bar (Figure 6-1
item D) is necessary to ensure correct operation of this component.
A
1
1
1
16
16
16
B
C
