Fronius WND-WR-MB, Operating Instructions Manual

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Operation
Power Status
LEDs The three status LEDs on the front of the Fronius Smart Meter can help indicate
correct measurements and operation. The “L1”, “L2”, and “L3” on the diagrams
indicate the three phases:
Normal Startup
The Fronius Smart Meter displays the following startup sequence whenever
power is first applied.
Consuming Power
Any phase with the LEDs flashing green is indicating normal positive power (Im-
port of energy from public grid).
If the inverter or any other power source is not producing power and some min-
imal power is being used, the LEDs should be flashing green. This is normal, when
the inverter is in its 5 minute startup cycle.
No Power
Any phase with a solid green LED indicates no power, but line voltage is present.
No Voltage
Any phase LED that is off indicates no voltage on that phase.
Generating Power
Red flashing indicates negative power for that phase. This is a normal behavior if
more power is produced (by the inverter or any other power source) than con-
sumed (Export of energy to the public grid). If no power is produced at all, this
might indicate either reversed CT's, swapped CT wires or CT's are not matched
with the correct line voltage phase.
Overvoltage Warning
The following indicates that the line voltage is too high for this model. Disconnect
power immediately! Check the line voltages and the meter ratings (in the white
box on the label).
Meter Not Operating
If none of the LEDs are illuminated, check that the correct line voltages are ap-
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