5.5.3 Connecting Cables to Staubli MC4 Terminals......................................................................................................... 51
5.6 (Optional) Installing the Smart Dongle........................................................................................................................ 53
5.7 Connecting Signal Cables................................................................................................................................................... 55
5.7.1 Communication Modes................................................................................................................................................... 58
5.7.2 (Optional) Connecting the RS485 Communications Cable to the SUN2000............................................... 60
5.7.3 (Optional) Connecting the RS485 Communications Cable to the Power Meter.........................................61
5.7.4 (Optional) Connecting the Power Grid Scheduling Signal Cable..................................................................... 62
5.7.5 (Optional) Connecting the Rapid Shutdown Signal Cable................................................................................. 63
6 Commissioning.......................................................................................................................64
6.1 Checking Before Power-On................................................................................................................................................64
6.2 System Power-On................................................................................................................................................................. 65
7 Human-Machine Interaction.............................................................................................. 67
7.1 Scenario in Which SUN2000s Are Connected to the FusionSolar Smart PV Management System.........68
7.1.1 (Optional) Registering an Installer Account............................................................................................................ 68
7.1.2 Creating a PV Plant and a User.................................................................................................................................... 70
7.1.3 SmartLogger Networking............................................................................................................................................... 71
7.2 Scenario in Which Inverters Connect to Other Management Systems..............................................................71
7.3 Energy Control....................................................................................................................................................................... 71
7.3.1 Grid-tied Point Control.................................................................................................................................................... 71
7.3.2 Setting Feed-in at Limited Current..............................................................................................................................75
7.3.2.1 Connecting the App to the Inverter or Smart Dongle.......................................................................................76
7.3.2.2 Scenario Where the App Connects to the SmartLogger...................................................................................77
7.3.3 Apparent Power Control on the Inverter Output Side..........................................................................................78
8 Maintenance...........................................................................................................................80
8.1 System Power-O................................................................................................................................................................. 80
8.2 Routine Maintenance.......................................................................................................................................................... 81
8.3 Alarm Reference.................................................................................................................................................................... 82
9 Handling the Inverter...........................................................................................................83
9.1 Removing the SUN2000..................................................................................................................................................... 83
9.2 Packing the SUN2000..........................................................................................................................................................83
9.3 Disposing of the SUN2000................................................................................................................................................ 83
10 Technical Specications.....................................................................................................84
A Grid Codes...............................................................................................................................95
B Device Commissioning....................................................................................................... 111
C Built-in PID Recovery......................................................................................................... 114
D Rapid Shutdown................................................................................................................. 115
E NS Protection....................................................................................................................... 116
F Resetting a Password......................................................................................................... 117
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual Contents
Issue 18 (2024-03-10) Copyright © Huawei Technologies Co., Ltd. viii