(1) PV connection
indicator
(2) Grid-tied indicator
(3) Communication
indicator
(4) Alarm/Maintenance
indicator
(5) Host panel
(6) Maintenance
compartment
Table 2-2 LED description
Display
Category
Indicator Status
Meaning
PV indication
LED1
LED4
-
Steady
green
-
At least one PV string is properly connected, and
the DC input voltage of the corresponding MPPT
circuit is at least 500 V.
Blinking
green at
short
intervals
Red
An environmental fault occurs at DC side.
Off
-
The inverter disconnects from all PV strings, or the
DC input voltage of all MPPT circuits is less than
500 V.
Grid-tied
indication
LED2
LED4
NA
Steady
green
-
The inverter is in grid-tied mode.
Blinking
green at
short
intervals
Red
An environmental fault occurs at AC side.
Off
-
The inverter is not in grid-tied mode.
Communicatio
ns indication
LED3
-
Blinking green at short
intervals
The inverter receives data over RS485 or MBUS
communication.
Off
The inverter has not received data over RS485 or
MBUS communication for 10 seconds.
Alarm/O&M
indication
LED4
-
Steady red
A major alarm is generated.
If the PV connection indicator and grid connection
indicator are both not blinking green fast, replace
components or the solar inverter as instructed by
the SUN2000 app.
SUN2000-(196KTL-H0, 200KTL-H2, 215KTL-H0)
Series
User Manual
2 Overview
Issue 07 (2021-07-08)
Copyright © Huawei Technologies Co., Ltd.
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