Import Power Limit - Sungrow SH8.0RS User Manual

User Manual
To prevent excess energy from overcharging the battery, the hybrid inverter automatically
detects the problem and changes the frequency at the AC output. This frequency adjustment
is analyzed by the PV inverter. As soon as the power frequency of the battery-backup grid
increases beyond the value specified in Set Test Frequency, the PV inverter limits its output
power accordingly.
Before retrofitting the existing PV system to an off-grid port, the Frequency Shift Power
Control parameter needs to be enabled. It must be ensured that the connected PV inverters
limit their power at the AC output via the hybrid inverter due to changes in frequency. The
frequency-dependent active power limitation PF must be set in the PV inverter.
When the battery SOC is greater than 85%, the Hybrid inverter will standby
before starting when switching off-grid, and does not support seamless switching.

8.10.13 Import Power Limit

Import power is the sum of the battery charging power and the load power of the Backup.
Following local regulations, calculate the maximum system tolerable power based on the
wire and circuit breaker that required by the selected model, and the value can be set as the
Import Power Limit. The setup steps are shown below.
Tap More > Settings > Operation Parameters > Other Parameters to enter the
corresponding screen.
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