User manual

Locating Beeper Operating Instructions Version 1.0
Page 9 of 20
3.2. Model Finder Code (Failsafe)
The Locating Beeper outputs a special alarm signal similar to the
S.O.S. signal (3 times short, 3 times long and 3 times short) when the
servo signal is missing, erroneous or assumes a certain value (failsafe
state). The signal repeats every 4 seconds.
Alarm starts with following conditions
Servo pulse length shorter than 0.8ms (corresponds to -175%)
Servo pulse length longer than 2.2ms (corresponds to +175%)
Servo pulse distance is smaller than 10ms (error - malfunction)
Servo pulse distance is longer than 40ms (no servo signal)
Servo pulse exceeds failsafe threshold (< -100%)
Supply voltage interrupted (only PRO-version)
The failsafe threshold is fixed at -100% (1.1ms pulse width). This
means: as soon as the servo signal gets < -100% the alarm triggers.
The total servo range from -100% up to +100% is usable as normal
(e.g. for tow release- or choke servo). An actual S.O.S. error output is
interrupted as soon as the servo signal returns to valid values!
Hint:
The Locating Beeper does not evaluate servo signals for the first 5 seconds after
turning the receiver on.