49
P
Pa
arra
am
me
ette
err
D
De
effa
au
ulltt
R
Ra
an
ng
ge
e
AC under-frequency single stage protection value
49.5Hz
45Hz ~ 49.89Hz
AC over-frequency single stage protection value
50.20Hz
50.11Hz ~ 55Hz
table 7-10
Multi- level Protection Parameters Explanation
P
Pa
arra
am
me
ette
err
D
De
effa
au
ulltt
R
Ra
an
ng
ge
e
AC under-voltage level one protection value
195.5V
23V ~ 230V
AC over-voltage level one protection value
253.0V
220V ~ 322V
AC under-frequency level one protection value
49.50Hz
45Hz ~ 49.89Hz
AC over-frequency level one protection value
50.20Hz
50.11Hz ~ 55Hz
AC under-voltage level one protection time
2.00s
0 ~ 600s
AC over-voltage level one protection time
2.00s
0 ~ 600s
AC under-frequency level one protection time
600s
0 ~ 600s
AC over-frequency level one protection time
120s
0 ~ 600s
AC under-voltage level two protection value
115.0V
23V ~ 230V
AC over-voltage level two protection value
310.5V
220V ~ 322V
AC under-frequency level two protection value
48.00Hz
45Hz ~ 49.89Hz
AC over-frequency level two protection value
50.50Hz
50.11Hz ~ 55Hz
AC under-voltage level two protection time
0.10s
0 ~ 600s
AC over-voltage level two protection time
0.05s
0 ~ 600s
AC under-frequency level two protection time
0.20s
0 ~ 600s
AC over-frequency level two protection time
0.20s
0 ~ 600s
table 7-11
Description of protection recovery parameters
P
Pa
arra
am
me
ette
err
E
Exxp
plla
an
na
attiio
on
n
Vmax-recover
Max. protection recovery voltage
Vmin-recover
Min. protection recovery voltage
Fmax-recover
Max. protection recovery frequency
Fmin-recover
Min. protection recovery frequency
7.7.3 Firmware Update
P
Prre
ep
pa
arra
attiio
on
n o
off ffiirrm
mw
wa
arre
e u
up
pg
grra
ad
de
e p
pa
ac
ckka
ag
ge
e
Contact the supplier or SUNGROW to get the upgrade package (.sgu file) and store the
package in the specified path.
•
Path (Android system): root directory /iscFiles
•
Storage method (iOS system): Connect the mobile phone to the computer through a
data cable, find the folder iSolarCloud application via iTunes, iMazing, or iTools, and
copy the upgrade package to the folder "Document".
User Manual