MD-11 Flight Crew Operations Manual
k
Electrical -
Controls and Displays
Elec.30.11
5. APU Power
APU PWR is shown only when APU power is available. APU PWR will be
white with white lines connecting to the three bus lines receiving APU power.
When APU power is in use on any bus, the text will turn green. APU voltage,
frequency, and load are shown in white digits below the schematic. The APU
voltage, frequency, and load parameters will be white during normal
operation. The APU voltage and frequency parameters will be boxed and
amber when any abnormal APU GEN OFF condition exists. The APU load
parameters will be amber and boxed when an APU GEN LOAD HI condition
exists. If no valid data is available it will be removed.
6. Generator (3)
The ac generators are shown in green with their voltages, frequencies, and
loads in white. The generator will turn amber and associated parameters will
turn amber and boxed when a GEN OFF condition exists. The generator load
parameters will be amber and boxed when a GEN LOAD HI condition exists.
The ac generator symbol is shown in white when engines are off or during
engine start-up or shutdown. If a fault requiring disconnect occurs, FAULT
is shown at the side of the symbol in amber. When the generator is
disconnected, FAULT is replaced by DISC. If no valid data is available, the
data will be removed and replaced with an amber X.
7. Main External Power
External power is available when a white EXT PWR is shown and it is
connected to the buses receiving external power with white lines. When in
use, EXT PWR will turn green. The external power voltage and frequency are
shown in white below the APU data. If no valid data is available, the
associated data will be removed from the screen. If external power is not
available all associated displays are removed.
8. APU and EXT PWR
Associated voltage, frequency, and status are shown in white. If voltage
and/or frequency are out of limits, the numbers are boxed and turn amber. If
no valid data is available, it will be removed. GLY PWR not applicable on
freighters.
October 02, 2006
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