Powering On The System - Huawei SUN2000L2KTL User Manual

SUN2000L-(2KTL-5KTL)
User Manual

6.2 Powering On the System

Prerequisites
Before turning on the AC switch between the SUN2000L and the power grid, check that the
AC voltage on the power grid side of the AC switch is within the specified range.



Procedure
Step 1 If a battery connects to the battery port, turn on the battery Auxiliary Power ON/OFF switch,
and then turn on the battery Circuit Breaker switch.
Step 2 Turn on the AC switch between the SUN2000L and the power grid.
Step 3 Turn on the DC switch between the PV string and the SUN2000L if there is any.
Step 4 Turn on the DC switch at the bottom of the SUN2000L.
Step 5 Observe the LEDs to check the SUN2000L operating status.
Issue 05 (2019-06-06)
If the DC is on and the AC is off, the SUN2000L reports a Grid Loss alarm. The
SUN2000L starts normally only after the fault is rectified.
If the AC is on and the battery is off, the SUN2000L reports a Battery Abnormal alarm.
If the inverters are connected to batteries, turn on the DC switch within 1 minute after
turning on the AC switch. Otherwise, the inverters, connected to the power grid, will shut
down and start again.
Copyright © Huawei Technologies Co., Ltd.
6 System Commissioning
59