ABB TRIO-20.0/27.6-TL-OUTD

- 100 -
000035EG
7 - Operation
10. Remote ON/OFF
This section of the menu allows you to enable/disable the connection/
disconnection of the inverter to/from the grid through the relevant control
signal (R ON/OFF).
• Disable: the connection/disconnection of the inverter to/from the grid is
dictated by the input (voltage from the photovoltaic generator) and output
(grid voltage) parameters of the inverter.
• Enable: the connection/disconnection of the inverter to/from the grid is
dictated by the state of the R ON/OFF signal compared to the GND COM
signal, as well as by the input (voltage from the photovoltaic generator)
and output (grid voltage) parameters of the inverter.
11. UV Prot. Time
This section of the menu allows you to set the time for which the inverter
stays connected to the grid after the input voltage has dropped below the
Under Voltage limit (set at 70% of Vstart). ABB sets the time at 60 sec.
The user can set it at any time from 1 to 3600 sec.
Example: with UV Prot. Time set at 60 seconds, if voltage Vin drops be-
low 70% of Vstart at 9:00, the inverter stays connected to the grid (taking
power from it) until 9:01.
12. Reactive power
This section of the menu may be used to manage the supply of reactive
power into the grid. There are 5 possible types of management:
• No regulation: no regulation of reactive power. To enable this mode,
select Enable and then OK (using the UP / DOWN arrows)
• Cos-phi xed: Sets the power rating to a xed value. To enable this
mode, select Enable and then OK (using the UP / DOWN arrows) When
enabled, Set value will appear on the display, allowing you to set the
value of Cos-Phi (as either Over or Under excited, from 1.000 to 0.800)
• Cos-phi = f(P): Power rating as a function of the active power supplied
by the inverter. To enable this mode, select Enable and then OK (using
the UP / DOWN arrows). When it has been enabled, Load std curve
will appear on the display, allowing you to set the following control curve:
Cos-phi (Over excited)
P/Pn
1
0.9
0.85
0.95
0.95
0.85
0.9
0.20 .3
0.4
0.6
Cos-phi (Under excited)
0.50 .7
1
0
.
9
0.8
• Q = f(U): reactive power as a function of the grid voltage measured by
the inverter. To enable this mode, select Enable and then OK (using the
(*) The curve can be edited with
the Aurora Manager LITE congu-
ration software