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Also, when you install propellers, make sure that you have selected a propeller of the correct orientation for
the direction the motor is spinning.
Make sure you have correctly set up your motor order, directions and propeller orientations before
arming the multirotor with propellers! The multirotor may flip over violently or fly away
uncontrollably if these are wrong!
5.11.7
Configuring Low Battery Autoland (Multirotor only)
In addition to being able to monitor your battery via the OSD,
you can also configure your multirotor to descend automatically
when the battery is almost depleted, when the Vector is in a
flight mode that supports altitude hold. This option is ON by
default.
When triggered, a message will appear in the notification area, and if
you are in an altitude hold enabled flight mode, your throttle setting will be reduced, requiring about 90%
throttle to climb.
If you are in a non-altitude hold flight mode, the low battery alert will appear, but the throttle will not
be affected.
To configure this feature, invoke menu mode and bring up the "Multirotor Configuration" menu from the main
menu.
Here you can turn autoland on and off, as well as setting the cell voltage for landing.
Since the Vector knows both the present voltage and present current provided by the battery, it is able
to approximately determine the "no load" battery voltage even when the battery is under load, so you only
need to enter the desired no load per-cell voltage for landing, rather than trying to estimate the voltage under
load.
If for some reason you are not using the current sensor, you will need to experiment with the appropiate
voltage settings, since the calculation above will be inaccurate. If the current (amps) readout on the OSD is
incorrect, disable low battery autoland!
The Vector automatically calculates the cell count, by default. If you wish to manually enter the cell
count, you can do this under the Calibration menu described later.
5.11.8
Setting Flat Level Mounting
Before flying, the Vector needs to correct for any controller mounting offsets that could affect level flight. To do
this, place the model so that it is perfectly level (on a level counter or floor), invoke menu mode, and select
"Record Flat Level Mounting" from the "New Airframe Checklist" menu.
5.11.9
Rezeroing Gyros
The Vector gyros are factory zeroed, but it never hurts to rezero them occasionally, as this can potentially
improve stabilizer performance. The Vector does not need to be perfectly level to rezero gyros, but it must
remain COMPLETELY STILL during the rezeroing process. To rezero, select the "Rezero Gyros (must be still!)"
menu item under the "Preflight Checklist" menu.
It's best to rezero the gyros after the model has adjusted to the temperature at your flying location.
Never try to rezero gyros with a fixed wing model in the wind, as the wind can buffet the model, which
could cause a rezeroing error.
USER GUIDE
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