Front View
(1) PV connection
indicator
(2) Grid connection
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.
O - The inverter disconnects from all PV strings, or the
DC input voltage of all MPPT circuits is less than
500 V.
Grid
connection
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.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1)
User Manual 2 Overview
Issue 19 (2023-12-20) Copyright © Huawei Technologies Co., Ltd. 16