User manual

18 |
3 Loaded: Calculated, First level > Second level.
 Method of Acquiring Line Loss Voltage ：
1 Make sure you can fly your multi-rotor normally
with a fully charged battery.
2 Use a fully charged battery, switch on the low
voltage protections in assistant software, and
observe the current voltage. Fill a reasonable
warning voltage in the No Load of first protection
(We recommend to fill a voltage 1V lower than
current voltage and higher than minimum battery
voltage rating in). Fill 0V in Loss at the moment.
3 Fly the multi-rotor until the first level protection is
triggered, and the yellow light is flashing. Now
land your multi-rotor ASAP.
4 Connect the MC to PC, open the assistant and
acquire now current voltage. The Loss (Line loss
voltage) is the difference between the new
current voltage and the first level No Load voltage
you filled in.
1 If the line loss voltage of a battery is over 0.3V
per cell (e.g. 3S battery over 0.9V), it’s because
the internal resistance of battery is high or the
battery is too old, we suggest you to replace it!
2 Generally the line loss voltage of different battery
is different. For the consideration of safety, you’d
better acquire all the line loss voltages of all your
battery you are using, and fill the lowest one in
the Loss.
3 When you change the payload or multi-rotor, you
have to get new line loss voltage.
4 The line loss voltage will be bigger after many
times use, you should get new one after 30 times
charging.
5 Make sure your ESCs protection voltage is lower
than 3.1V (1S), otherwise WKM low voltage
protection will not work.
1 Acquire the line loss voltage by the method
introduced before first, and fill it in Loss.
2 Fill a reasonable warning voltage in the No Load.
3 Choose a safeguard: 1) LED warning: It is the default
safeguard when you switch on the low voltage
protection; 2) Go Home and Landing: This safeguard
will NOT be triggered when any of the following items
is satisfied:
a) Manual or Atti. Mode;
b) GPS signal is not good;
c) The distance between Home Location and
multi-rotor is smaller than 25m, and the altitude
is smaller than 20m relative to Home Location.
Here the generation of Home Location is the
same as the way used in Enhanced Failed-safe.
Please refer to Enhanced Failed-safe in
Autopilot.
1 There will be a 4 seconds LED warning before Go
Home.
2 If you switch to Manual or Atti. Mode during Go
Home, you will regain the control. LED warning
will be still on, please land ASAP.
3 If you switch back into the GPS Mode when you
are in first level protection, you will have 15s time
to control your multi-rotor, you should land ASAP
in this 15s to prevent your multi-rotor from crash
or other harmful consequences! After that if the
Go Home and landing requirements are satisfied,
multi-rotor will Go Home and Landing
automatically.
4 If you choose LED warning, please land ASAP
after LED warning to prevent your multi-rotor from
crash or other harmful consequences!
5 Compare the Go Home and Landing of low
voltage protection and the Go Home and Landing
in Enhanced Failed-safe, the generations of
Home Location are the same; the Go Home
routes are the same; the difference is that there is
no hovering before landing in low voltage
protection.
STEP4: Second Level Protection
1 Fill the warning voltage and line loss voltage in No
Load and Loss by the method introduced in previous
step.
2 When the second level protection is triggered, LED
warning will be on. Meanwhile the center point of
throttle stick will move up slowly to 90% of endpoint,
you should land ASAP to prevent your multi-rotor
from crash or other harmful consequences!
3 When the center point is at 90% of endpoint,
multi-rotor will still ascend slowly if you continue to
pull the throttle stick, and the control of Pitch, Roll
and Yaw are the same as before. Please land ASAP
to prevent your multi-rotor from crash or other
harmful consequences!
If your multi-rotor goes into the second level protection
during Go Home in first level protection, it will land
immediately. If you switch into Manual or Atti. Mode,
you will regain the control, and the center point of
throttle stick will move up slowly to 90% of endpoint.
Please land ASAP to prevent your multi-rotor from
crash or other harmful consequences!