8 Settings
Installation and Operation Manual for Inverter RPI M50A_12s V1 EU EN 2017-03-09
122
8.6 FRT (Fault Ride Through)
These parameters are set according to the
requirements of the selected country. Changing
these parameter settings can invalidate the type
approval of the unit. Change this setting only after
consultation with Delta customer service.
Overview
To change this setting, you need a special pass-
word provided by Delta customer service. You
can find the contact information on the back of
this document.
This function allows you to defined the behavior of the inverter in
the case of short-term grid voltage dropouts.
Menu item path
Main menu > Settings > FRT
Setting options
V
drop
U
1
U
min
100%
t
0
t
1
t
3
Time
Stay connected
to the grid
Disconnect from grid
U
grid
/U
n
t
0
: The time at which a voltage collapse begins.
Parameter Description Setting range
Mode
Switch the function on and off.
ON|OFF
Dead Band
The upper voltage limit of the voltage range in which this function is
not active.
The percentage value relates to the nominal voltage.
-20 .. 0%
Vdrop
Voltage drop
0 .. 90%
t1
Time t1
0.0 .. 5.0 s
U1
Voltage U1
20 .. 90%
t3
Time t3
0.0 .. 5.0 s
K factor
Switching current factor
0.0 .. 10.0
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