What does error PCS-FPGA-07 mean on a Felicity ESS?

PCS-FPGA-07 means: FPGA hardware fault - unit direct voltage fault. Unit DC voltage abnormal.

Is error PCS-FPGA-07 a fault or a warning?

PCS-FPGA-07 is a warning: the unit keeps running. Fix the underlying condition before it escalates.

Reset to restart. Check whether the contactor of the high-voltage box has been disconnected.

PCS-FPGA-07

FPGA hardware fault - unit direct voltage fault

Warning — a protection warning — the ESS unit keeps running, but deal with the cause before it escalates.

Energy storage systemWarning

FPGA hardware fault - unit direct voltage fault

Cause: Unit DC voltage abnormal.

Reset to restart.
Check whether the contactor of the high-voltage box has been disconnected.
If the device fails to start after reset, manual intervention is required to check whether the DC fuse is blown.

Source: FLS-ES232LC-S.pdf

What does error PCS-FPGA-07 mean on a Felicity ESS?: PCS-FPGA-07 means: FPGA hardware fault - unit direct voltage fault. Unit DC voltage abnormal.
Is error PCS-FPGA-07 a fault or a warning?: PCS-FPGA-07 is a warning: the unit keeps running. Fix the underlying condition before it escalates.
How do I clear or fix error PCS-FPGA-07?: Reset to restart. Check whether the contactor of the high-voltage box has been disconnected.

Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.