Huawei SUN2000-2KTL-L0 - Powering off the System

SUN2000-(2KTL-5KTL)-L0
User Manual
6 System Commissioning
Issue 02 (2019-07-04)
Copyright © Huawei Technologies Co., Ltd.
57
6.2 Powering On the System
Prerequisites
Before turning on the AC switch between the SUN2000 and the power grid, check that the AC
voltage on the power grid side of the AC switch is within the specified range.
If the DC is on and the AC is off, the SUN2000 reports a Grid Failure alarm. The SUN2000
starts normally only after the fault is rectified.
Procedure
Step 1 Turn on the AC switch between the SUN2000 and the power grid.
Step 2 Turn on the DC switch between the PV string and the SUN2000 if there is any.
Step 3 Turn on the DC switch at the bottom of the SUN2000.
Step 4 Observe the LEDs to check the SUN2000 operating status.
Table 6-2 LED description
Type
Status
Meaning
Running
indication
LED 1
LED 2
N/A
Steady green
Steady green
The SUN2000 is
exporting power to
the power grid.
Blinking green at long
intervals (on for 1s and
then off for 1s)
Off
The DC is on and the
AC is off.
Off
Blinking green at
long intervals (on for
1s and then off for
1s)
The DC is off and
the AC is on.
Blinking green at long
intervals (on for 1s and
then off for 1s)
Blinking green at
long intervals (on for
1s and then off for
1s)
Both the DC and AC
are on, and the
SUN2000 is not
exporting power to
the power grid.