Inverter Functions; Perfect Control Strategy; Active Power Limitation; Active Power Limitation Introduction - Sungrow SG500MX 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 to set the control strategy on the LCD screen as follows:
Tap "Function" from the default menu;
Step 1
Step 2 Tap "Set-parameter";
Tap "Sys-parameter" after entering the correct password.
Step 3
Tap "Remote/Local control" and enter into the Remote/Local control sub-menu.
Step 4
Step 5 Select the control method through the pull-down list.

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
34