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7.2.6.5
FRT (Fault ride through)
This function is only for Germany MV, Italy LV, and Italy MV. It is not
recommended that users modify the default values.
FRT – 1/2
Dead band - Vh
a
Dead band - Vl
b
K factor
c
Vdrop
d
t1
e
U1
f
t2
g
FRT – 2/2
t3
h
Mode
i
8. Maintenance
In order to ensure the normal operation of PV Inverter, please check up regularly
at least once each year or each half year. Check all the terminals, screws, cables
are connected well. If there are any impaired parts, please contact with the
qualified technician to repair or replace to the new spare part. To ensure that no
foreign body stocks at the heat outlet, please clean up once a half year by
qualified technicians.
Danger！Death and serious injuries may occur.
Before maintenance, please disconnect AC and DC to avoid risk of
electronic shock.
21. Jun 2010 13:50
[
+10
] %
[
-10
] %
[
2.0
]
[
5
]
%
[
]
ms
150
%
[
]
20
[
1.5
] s
21. Jun 2010 13:50
[
3.0
] s
[
ON
]
f
d
Figure 7-25 FRT setting page
-10
c
K factor
U
U
grid/
nom
100%
1
U2
2
U1
Udrop
t1
0
t2
e
g
Fault occurence
I
/I
B
n
c
K factor
+10
U/Un
b
a
3
4
t3
h
time
44
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Troubleshooting
