PowerBox Systems PowerBox Cockpit SRS Instruction Manual page 27

6. Channel lock when undercarriage is retracted
The PowerBox Cockpit SRS's door sequencer also features one last
unique function: it is now possible to switch a channel off when the
undercarriage is retracted. The purpose of this feature is to prevent the
retracted nosewheel moving inside the fuselage when the pilot gives a
rudder command, as this may cause the mechanical system to jam. The
function can be found under GEAR UP - OUTPUT OFF in the Door
Sequencer menu. Simply use the SensorSwitch to select the output
which you wish to disable when the undercarriage is retracted. Select
the output, and confirm your choice with the SET button; at the same
time the system stores the position of the nosewheel servo at which it is
to remain.
7. Reading out the flight recorder
The RF-Flight Recorder display is accessed by briefly and
simultaneously pressing buttons I and II on the SensorSwitch:
Antenna Fades:
- Spektrum, Futaba, M-Link: This item displays the lost data packets for
the individual receivers
- HoTT and Jeti: This item displays the number of switching events
between the receivers
Lost Frames:
This value shows how many occasions none of the connected receivers
was able to supply a valid data packet.
Holds:
This value is incremented when none of the connected receivers is able
to supply a valid signal for a period longer than 250 ms. When this
occurs, the servos move to the Hold or Fail-Safe positions stored in the
backer.
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