Installation and Operator’s Manual
Page 17 of 20
(Aurora Wind Interface Rev 4.0)
4 Trouble-shooting
Trouble-shooting should only be done by trained and qualified personnel. Trouble-
shooting involves hazardous voltages and energies.
Symptom Measurement/verify
Possible
Cause
Aurora Wind Inverter,
Blinking Green LED
Measure WBI Output;
Grid Voltage at Aurora
Wind Inverter connected
•
Exporting initial point
of the power curve set
higher than actual Vdc
•
Grid connection out of
range, check Inverter
output voltage setting
•
Grid is not present
Wind turbine cyclically
accelerates and slows
down
Bulk Output Voltage;
Diversion LED status
•
High wind speeds
•
Diversion load is
active
•
No proper power
curve is uploaded
•
W/s slope is to be
optimized
Wind turbine stalls
Wind Input Vac > 40 Vac
Diversion LED status
•
Diversion Load
wrongly active
•
Power curve is not
proper
Wind turbine furling
Bulk Output Voltage;
Diversion LED status;
Check Diversion load for
heat production
•
Diversion load is not
connected
•
Extremely high wind
speeds
•
Bulk Output Voltage
is not exceeding
530Vdc
No Green LED blinking
when, wind turbine is
above cut-in speed
Wind Input Vac > 40 Vac
at terminals;
Vac between F7, F8 and F9
•
Generator damaged
•
F1, F2, and/or F3
fuses are open
•
Over voltage
activated crowbar
•
Wiring issue between
PM generator and
WBI
Wind turbine won’t turn
Wires from PMG and WBI
•
Generator leads
shorted together
Table 4: Trouble shooting guide
