System Power-On - Huawei SUN2000-330KTL-H1 User Manual

SUN2000-(330KTL-H1, 330KTL-H2)
User Manual

6.2 System Power-On

When the grid connection indicator is steady green (the SUN2000 is connected to
the power grid), do not turn on the DC switch. Otherwise, the SUN2000 may be
damaged because insulation resistance detection is not performed.
● Before turning on the AC switch between the SUN2000 and the power grid,
● If a SUN2000 has not been running for more than half a year after being
● When the system is powered on for the first time, ensure that MAIN SWITCH is
● The DC switches implement automatic disconnection. If cables are reversely
● When the system is powered on or running, ensure that there are no obstacles
● If you perform
Step 1 Wear proper personal protective equipment (PPE).
Step 2 Turn on the AC switch between the SUN2000 and the power grid.
Step 3 Set MAIN SWITCH at the bottom of the SUN2000 to ON. When you hear a click,
the switch is completely turned on. Observe the LED indicators.
Step 4 If the PV connection indicator is steady green, set DC SWITCH 1 and DC SWITCH
2 to ON. Observe the LED indicators to check the operating status of the
SUN2000.
If the PV connection indicator is off 1 minute after the SUN2000 is powered on, do
not turn on the DC SWITCH. At the same time, turn off MAIN SWITCH
immediately and check whether the input power cables are reversely connected or
Issue Draft A
(2022-08-30)
WARNING
NO TICE
check that the AC voltage is within the specified range using a multimeter.
mounted, it must be checked and tested by professionals before being put into
operation.
turned on first. After the PV connection indicator is steady on, turn on DC
SWITCH 1 and DC SWITCH 2. After the system is successfully connected to the
power grid, turn off MAIN SWITCH. The Company is not liable for any device
damage caused by operations not performed in this sequence.
connected or PV modules are not properly configured, the DC switches
automatically turn off for protection. In this case, clear the alarm on the app
and turn on the DC switches only after confirming that the alarm is cleared.
Device damage caused by forcible switch-on after the DC switches turn off is
not covered by the warranty.
(for example, cables or operators' misoperations) that stop the rotation of the
DC switch handles. Otherwise, the DC switches cannot automatically turn off.
Step 3
abnormal shutdown. You can start the SUN2000 only after the fault is
automatically rectified.
Copyright © Huawei Technologies Co., Ltd.
before Step 2, the SUN2000 reports a fault about
6 Power-On Commissioning
53