Sungrow SG250K3, Operation Manual

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Table of Contents
1. Safety Instructions............................................................................................................. 1
1.1. Service Safety .......................................................................................................... 3
1.2. Open the Door of SG250K3 ........................................................................................ 3
2. Introduction ..................................................................................................................... 5
2.1. PV Generation System .............................................................................................. 5
2.2. Basic Structure............................................................................................................ 6
2.3. Status and Control Elements ..................................................................................... 7
2.3.1. The LED Indicators .......................................................................................... 7
2.3.2. Functions of the Touch Screen .......................................................................... 8
2.3.3. Emergency Stop Button ........................................................................................ 8
2.3.4. Start/Stop Switch ................................................................................................ 8
2.3.5. DC Breaker ...................................................................................................... 8
2.3.6. AC Breaker ...................................................................................................... 8
3. Commissioning ................................................................................................................. 10
3.1. Visual Inspection ................................................................................................... 10
3.1.1. AC Connection Check ........................................................................................ 10
3.1.2. DC Connection Check ....................................................................................... 10
3.1.3. Ground Connection Check .................................................................................. 10
3.1.4. Serial Communication Check (Optional) .................................................................. 10
3.2. Start the Inverter ........................................................................................................ 11
3.3. How to Restart after Using the Emergency Stop Button .............................................. 11
4. Operation ....................................................................................................................... 13
4.1. Operation Modes ..................................................................................................... 13
4.2. Modes Transition ...................................................................................................... 14
5. Data Interface .................................................................................................................. 16
5.1. LED Indicators ....................................................................................................... 16
5.2. Touch Screen Control Panel .......................................................................................... 17
5.2.1. The Background Illumination ......................................................................... 17
6. Touch screen Control Menu ............................................................................................. 19
6.1. Default Menu (Main Window) ................................................................................. 20
6.2. Start the Inverter .................................................................................................... 21
6.3. Stop the Inverter .................................................................................................... 23
6.4. Check Running Data.............................................................................................. 25
6.5. Check History Data ............................................................................................... 28
6.6. Entering the Password ............................................................................................ 31
6.7. Change Display Language ..................................................................................... 33
6.8. Change System Time ............................................................................................. 35
6.9. Parameters Adjustment .......................................................................................... 37
6.9.1. Generated Energy Adjustment ....................................................................... 37
6.9.2. Load Default Setup ....................................................................................... 39
6.9.3. Set Running Parameters ................................................................................. 41
6.9.4. Protection Parameter Limit ............................................................................. 43
6.9.5. Communication Parameter Setup ................................................................... 45
7. Maintenance ................................................................................................................... 48