Huawei SUN2000-55KTL Series User Manual page 13

SUN2000-(55KTL, 60KTL) Series
User Manual
Table 2-1 LED indicator description (from left to right)
Indicator
PV
connection
indicator
Grid-tied
indicator
Communicati
ons indicator
Alarm/Maint
enance
indicator
Issue 06 (2020-01-03)
Status
DC input Blinking green
detection
Blinking red
status
Steady red
PV string Steady green
connection
status
Green off
Steady green
Green off
Blinking green
Green off
Alarm status Blinking red at long
intervals (on for 1s and
then off for 4s)
Blinking red at short
intervals (on for 0.5s
and then off for 0.5s)
Steady red
Local Blinking green at long
maintenance intervals (on for 1s and
status then off for 1s)
Blinking green at short
intervals (on for 0.125s
and then off for 0.125s)
Steady green
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2 Overview
Meaning
The DC input is normal.
DC input detection is in
progress.
The DC input is abnormal.
At least one PV string is
properly connected, and the DC
input voltage of the
corresponding maximum power
point tracking (MPPT) circuit is
higher than or equal to 600 V.
The SUN2000 disconnects from
all PV strings, or the DC input
voltage of each MPPT circuit is
less than 600 V.
The SUN2000 connects to the
power grid.
The SUN2000 does not connect
to the power grid.
The SUN2000 receives
communications data normally.
The SUN2000 receives no
communications data for 10s.
A warning alarm is generated.
A minor alarm is generated.
A critical alarm is generated.
Local maintenance is in
progress.
Local maintenance fails.
Local maintenance succeeds.
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