6.2 Powering On the System
Precautions
NO TICE
Before turning on the AC switch between the SUN2000 and the power grid, use a
multimeter set to the AC position to check that the AC voltage is within the
specified range.
Procedure
Step 1 Turn on the AC switch between the SUN2000 and the power grid.
NO TICE
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 automatically rectified.
Step 2 If there is a DC switch between the PV string and the inverter, turn on the DC
switch.
Step 3 Set the DC SWITCH at the bottom of the SUN2000 to the ON position.
Step 4 Wait for about 1 minute, and then observe the LED indicators of the inverter to
check the running status.
Table 6-2 LED indicator description
Category
Status
Meaning
Running
indication
LED1
LED2
N/A
Steady green
Steady green
The SUN2000 is operating in grid-tied
mode.
Blinking green at
long intervals (on
for 1s and then
off for 1s)
Off
The DC is on and the AC is off.
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)
The DC is on, the AC is on, and the
SUN2000 is not exporting power to the
power grid.
Off
Off
The DC is off.
a
SUN2000-(12KTL, 15KTL, 17KTL, 20KTL)-M0
User Manual
6 Commissioning
Issue 06 (2020-07-02)
Copyright © Huawei Technologies Co., Ltd.
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