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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
password 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 event of short-term grid voltage dropouts.
Menu item path
Main menu > Settings > FRT
Setting options
U
/U
grid
n
100%
U
min
Stay connected
to the grid
U
1
Disconnect from grid
V
drop
t
t
0
1
t
: The time at which a voltage collapse begins.
0
Parameter
Mode
Dead band
Vdrop
t1
U1
t3
K factor
Installation and Operation Manual for Power Inverter RPI M6A M8A M10A EU V4 EN 2020-07-13
t
3
Description
Switch the function on and off.
The upper voltage limit of the voltage range in which this function is
not active.
The percentage value relates to the nominal voltage.
Voltage drop
Time t1
Voltage U1
Time t3
Switching current factor
Time
8 Settings
FRT (Fault Ride Through)
Setting range
ON | OFF
-20 .. 0%
0 .. 90%
0.0 .. 5.0 s
20 .. 90%
0.0 .. 5.0 s
0.0 .. 10.0
121
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