Normal Stop; Inverter Stops When A Fault Occurs - Sungrow SG500MX Operation Manual

4 Inverter Start/Stop

4.2.1 Normal Stop

Proceed as follows to stop the inverter during normal maintenance and service work as follows:
Step 1 Stop the inverter through the stop operation on the LCD panel
Turn the inverter Start/Stop switch to the "STOP" position
Step 2
Open the inverter AC cabinet door and disconnect the AC switch
Step 3
Step 4 Disconnect the inverter downstream switches
Open the inverter DC cabinet door and disconnect the DC switch
Step 5
Disconnect the inverter upstream switches
Step 6
Step 7 Disconnect external power supply source if the inverter is in external power supply mode
Inverter stops
Step 8
During normal operation, disconnection of AC or DC switch is strictly forbidden.
Otherwise, the switch can be damaged and the inverter may also be damaged.

4.2.2 Inverter Stops when a fault occurs

Proceed as follows to stop the inverter when a fault or emergency occurs as follows:
Step 1 Push the emergency stop button or turn the start/stop switch to the "STOP" position
Open the inverter AC cabinet door and disconnect the AC switch
Step 2
Disconnect the inverter downstream switches
Step 3
Open the inverter AC cabinet door and disconnect the AC switch
Step 4
Disconnect the inverter downstream switches
Step 5
Disconnect external power supply source if the inverter is in external power supply mode
Step 6
Inverter stops
Step 7
Use the Start/Stop switch or emergency stop button only when emergency or a fault
occurs. Under normal conditions, stop the inverter by perform the stop command in the
LCD panel.
Push the emergency stop button directly in times of crisis to ensure timely response.
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Operation Manual