Huawei SUN2000-250KTL Series User Manual page 27

SUN2000-(250KTL, 280KTL, 300KTL, 330KTL) Series
User Manual
Indicator
DC SWITCH
● The DC SWITCH automatically turns off when the inverter reports the String
● The DC SWITCH automatically turns off if a fault occurs in the inverter. In this
Table 2-1 DC SWITCH description
Switch
DC
SWITCH
Issue 07 (2023-06-30)
Status (Blinking Fast: On
for 0.2s and Off for 0.2s;
Blinking Slowly: On for 1s
and Off for 1s)
Blinking red
slowly
Local Steady green
maintenanc
Blinking
e state
green fast
Blinking
green slowly
NO TE
● The PV connection indicator and the grid connection indicator preferentially indicate
environmental faults.
● Local maintenance refers to operations performed after a USB flash drive, WLAN
module, or USB data cable is inserted into the USB port of the SUN2000. For example,
import and export data using a USB flash drive, or connect to the app using a WLAN
module or USB data cable.
● If the alarming and the local maintenance happen concurrently, the alarm/maintenance
indicator shows the local maintenance state first. After the USB flash drive, WLAN
module, or USB data cable is removed, the indicator shows the alarm state.
D ANGER
Reverse Connection or String Current Backfeed alarm. Check the fault type
on the mobile app. After the fault is rectified, wait for at least 3 minutes, turn
the switch handle to OFF to complete the reset, and then turn it on. For details,
see Resetting and Turning On the DC
case, the alarm/maintenance indicator is steady red, and the two DC SWITCH
automatically turn off. Then, contact technical support and do not turn on the
DC SWITCH by yourself.
Description
ON
TRIP
Copyright © Huawei Technologies Co., Ltd.
Meaning
A warning alarm was generated.
The local maintenance is successful.
The local maintenance failed.
The device is under local maintenance or
shut down after receiving a command.
SWITCH.
The DC SWITCH is on and can turn off for protection.
The DC SWITCH is automatically turned off. (The
switch handle is between ON and OFF.)
2 Overview
20