Infeed: Summation current too high

What does 206210 mean?

The smoothed total of the phase currents (i1 + i2 + i3) exceeds 4% of the maximum power unit current (r0209). This severe condition often indicates a DC link ground fault, which can introduce a DC component into the line currents, potentially damaging or destroying the power unit, line reactor, or line filter. Other causes include uncalibrated current measurement or a defective current measurement in the power unit.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Inspect the power unit for defective current measurement components or issues with its internal circuitry.

2. 4

   Verify the condition and integrity of the line reactor and line filter, as DC components can cause damage.