Activating or Deactivating the Arc-Fault Circuit Interrupter (AFCI)

The basic procedure for changing operating parameters is explained in another section ( > Changing Operating Parameters).

Deactivating the Arc-Fault Circuit Interrupter

Procedure:

• Select the parameter AFCI switched on or AfciIsOn and set to No.

Activating the Arc-Fault Circuit Interrupter with Operation Inhibition

When the arc-fault circuit interrupter is activated and an arc is detected, the inverter interrupts the feeding operation and operation is inhibited. The inhibited operation must be reset manually for the inverter to resume feeding into the grid ( > Resetting the Operation Inhibition after Detection of an Arc Fault).

The procedure for activation will vary depending on the country data set.

Procedure for country data sets in compliance with UL 1741 SA:

• Select the parameter AFCI switched on or AfciIsOn and set to Yes.

Procedure for country data sets in compliance with IEEE 1547-2018/UL1741SB:

Activating the Arc-Fault Circuit Interrupter without Operation Inhibition

When the arc-fault circuit interrupter without operation inhibition is active and an electric arc is detected, the inverter interrupts the feed-in operation. No operation inhibition occurs. After a waiting period, the inverter starts automatically and checks whether the electric arc is still present. If the electric arc is still present, the inverter disconnects from the grid again and the process is repeated.

The procedure for activation will vary depending on the country data set.

Procedure for country data sets in compliance with UL 1741 SA:

• Select the parameter AFCI switched on or AfciIsOn and set to Yes, without permanent operation inhibition.

Procedure for country data sets in compliance with IEEE 1547-2018/UL1741SB: