Description
drive module arg and drive unit arg. Phase voltage is too low.
Consequences
The system cannot operate until the fault is corrected, and the system will enter the "system interruption" (SYS HALT) state.
Possible causes
One or more phase supply is blocked.
Recommended actions
Verify phases are connected correctly and fuses are not blown. Verify that the grid voltage is high enough. Verify that the grid inductance is not too high, causing the grid to be weak.