Installation and Operation Manual
Page 47 of 156
[PVI-XXX.0-YY(-TL) - Rev:1.0]
6.2.3
Master-N.Slave System 1 (with inverter ≥ 165kW)
In this configuration, all modules have the same photovoltaic field. Each DC disconnecting switch is
linked to the others and to the other Frameworks.
NOTICE
In this case, it is particularly important to
understand the use of the DC disconnecting
switches. Improper use may cause the inverter
to breakdown.
The following table indicates the allowed operations for the DC switches of each framework,
according to the position of the external DC switch.
Table 6-3: ADMITTED OPERATIONS AND POSITION OF THE DC SWITCHES
1 MASTER – N. SLAVE (Inverter ≥ 165kW)
P
OSITION
D
ISCONNECTING
SWITCH EXTERNAL
DC
POSSIBLE ACTIONS ON DC
SWITCHES
PROHIBITED ACTIONS ON DC SWITCHES
OPEN (OFF)*
After 5 minutes of the
opening of the external
switch, the switches can be
operated without
problems*
-
CLOSED
DC disconnecting switches
can be opened after having
turned off the relative
module via remote OFF, or
after having disconnected
the AC grid.
Open switches cannot be closed (in this
case it is absolutely necessary to first open
the external disconnecting switch and
wait 5 minutes)
•
before extraction, wait 5 minutes after the external disconnector has been switched OFF (0).
