Owner’s Manual BWC EXCEL 10 Turbine
Page 23
The DC Bus voltage has exceeded its maximum
threshold. This occurs if the input power exceeds
the output power. This may occur in exceptionally
high winds especially if the OV Power limit is active
or temperature throttling is occurring.
The DC Input voltage has exceeded its maximum
threshold. This may occur in exceptionally high wind
conditions.
The internal DC Boost voltage has dropped below its
minimum threshold. This usually indicates a
configuration problem and is normally never seen.
The AC line voltage has exceeded its maximum
threshold. This occurs if OV limiting was not able to
influence the high grid voltage. If this happens
routinely consider increasing the output wire gage or
making arrangements with the utility to upgrade their
distribution transformer.
The AC line voltage has dropped below its minimum
threshold. It is normal to see this when the inverter
has been disconnected from the grid. It may also
occur momentarily when large equipment is turned
on nearby.
Indicates that there is a problem with one or more of
the turbine input phases. Bad connection, shorted or
missing phase. When the inverter detects excessive
ripple on the DC input, it shuts down to protect the
turbine from destructive vibration.
Phase A line current sensed by the converter module
has exceeded its maximum current threshold. This
may indicate that current is returning on the earth
ground wire.
Phase C line current sensed by the converter
module has exceeded its maximum current
threshold. This may indicate that current is returning
on the earth ground wire.
The DC Boost phase of the converter module has
exceeded its maximum current threshold. Indicates
a loss of boost control.
The internal high temperature threshold has been
exceeded. Check that unit has adequate ventilation,
that the intake and exhaust vents are not obstructed,
and that the cooling fans are operating.
The internal low temperature threshold has been
exceeded. Avoid exposing the unit to temperatures
below -20ºC (-4ºF).
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