Inverter Functions; Perfect Control Strategy; Active Power Limitation; Active Power Limitation Introduction - Sungrow SG1250UD Operation Manual

8 Inverter Functions

8.1 Perfect Control Strategy

The following three control strategies are provided for user to perform control functions and
configure relevant parameters.

"Remote": The control codes can be sent only by the remote control machine.

"Local": The control codes can be sent only by the LCD screen.

"Remote/Local": Both "Remote" and "Local" codes are effective.
Proceed as follows to set the control strategy on the LCD screen:
Tap "Function" from the default menu.
Step 1
Tap "Setting".
Step 2
Tap "System parameter" after entering the correct password.
Step 3
Select the control method through the pull-down list.
Step 4

8.2 Active Power Limitation

8.2.1 Active Power Limitation Introduction

Situations, call for power limitation, are listed below:

Potential threatens to the inverter safety operation

Over-load of the grid branch connected to the inverter

Islanding

Factors affecting the stability of the stable grid status and dynamic grid status

Frequency rising affects the system stability

Grid maintenance

Grid management
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