Figure 7-18 Clearing alarms
Switch to the owner account with PV plant management rights. On the home
page, click the PV plant name to go to the PV plant page, and click OK as
prompted to clear the alarm.
Figure 7-19 Owner conrmation
7.2.3 IPS Check (for Italy CEI0-21 Grid Code Only)
Function
The Italy CEI0-21 grid code requires an IPS check for the SUN2000. During the
self-check, the SUN2000 checks the protection threshold and protection time of
the maximum voltage over 10 min (59.S1), maximum overvoltage (59.S2),
minimum undervoltage (27.S1), minimum undervoltage (27.S2), maximum
overfrequency (81.S1), maximum overfrequency (81.S2), minimum
underfrequency (81.S), and minimum underfrequency (81.S2).
Procedure
Step 1 On the home screen, choose Maintenance > IPS test to access the IPS test screen.
Step 2 Tap Start to start an IPS test. The SUN2000 detects maximum voltage over 10 min
(59.S1), maximum overvoltage (59.S2), minimum undervoltage (27.S1), minimum
SUN2000-(2KTL-6KTL)-L1
User Manual 7 Man-Machine Interaction
Issue 04 (2021-04-01) Copyright © Huawei Technologies Co., Ltd. 77
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