Quattro ii 48 5000, AC out2, power off on AC in 1. Can you delay the switching off power on AC out?

Hello there. My system (3 phases) includes 8 kWc of PV panels, a Fronius SYMO 8.2-3, 3 quattros ii 48 5000, 20kWh of batteries, a Cerbo Gx, and an EV charger.

I have the house heatpump connected to AC out2. Each time it is windy, the grid power comes and goes, usually in less than 2 mins interruptions (yesterday, the Cerbo registered 9 power outages, and in addition, I counted at least 4 micro-cuts not registered by Cerbo). This resulted in at least 13 on-off cycles for the heat pump during the day, which is very demanding for the electronics. Is there a way to delay, say by 3 mins, the moment at which power is cut on AC out2 from the moment the grid is lost? Thank you in advance for the help!