Huawei SUN2000-20KTL - Working Principles

SUN2000 (8KTL-28KTL)
User Manual
2 Overview
Issue 07 (2014-07-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
14
Indicator
State
Meaning
Alarm indicator
Steady red
The SUN2000 generates a major
alarm. For details about the
alarm, see 7.2.2 Viewing Alarm
Records.
Blinking red at short
intervals (on for 0.5s and
then off for 0.5s)
The SUN2000 generates a minor
alarm. For details about the
alarm, see 7.2.2 Viewing Alarm
Records.
Blinking red at long
intervals (on for 1s and
then off for 4s)
The inverter generates a
warning. For details about the
warning, see 7.2.2 Viewing
Alarm Records.
Buttons
The SUN2000 monitoring panel has four buttons, which are described in Table 2-5.
Table 2-5 Button description
Button
Name
Function
ESC
Return
button
Allows you to return to the last page or end an
operation.
Cursor Up
button
Allows you to go to the upper-level menu or set
parameters.
Cursor
Down
button
Allows you to go to the lower-level menu or set
parameters.
Confirm
button
Allows you to go to the menu or confirm the value.
The backlight lasts 60s after you press any button.
2.5 Working Principles
This topic describes the SUN2000 working principles.
Conceptual Diagrams

The SUN2000-15KTL, SUN2000-17KTL, SUN2000-20KTL, SUN2000-23KTL,
SUN2000-24.5KTL, and SUN2000-28KTL receive inputs from six PV strings. Then the