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208 Detail program description - Swashplate mixer and Fail-safe
Using the selection keys on the left or right touch pad, 
page to the menu option …
Phase settings
Phase assignment
Non-delayed chan
Timers (general)
Fl. phase timers
Helicopter mixer
Free Mixers
MIX active/phase
MIX-only channel
Dual mixer
Swashplate mixer
Fail-safe adjust
… on the multi-function menu. Briefl y tap the center 
SET
 key of the right touch pad to open this menu 
option:
S W A S H     M I X E R
Pitch
Roll
Pitch ax.
+61%
+61%
+61%
SEL
Note:
If "1 servo" is selected on the "Swashplate" line of the 
»Helicopter type«" menu, this option is not shown on 
the multi-function menu.
The number of servos installed in your helicopter for 
pitch control was established in the Swashplate line 
of the »Helicopter type« menu, see page 98. This 
information is used to automatically couple together 
the functions for roll, pitch-axis and collective pitch, 
so that you do not need to defi ne any other mixers 
yourself.
For helicopter models with only a single collective 
pitch servo, this "Swashplate mixer" menu option is of 
course superfl uous because the software controls a 
total of three swashplate servos for pitch, nick and roll 
independently of one another, i.e. without a mixer. In 
  Swashplate mixer
Collective pitch, roll, pitch-axis mixer
this scenario, this menu option is therefore no longer 
available to you from the multi-function menu. With 
all other swashplate linkages employing 2 … 4 pitch 
servos, mixer ratios and mixer directions are set up 
by default as shown above. The default is +61 % in 
each case but the value can be varied from -100 % to 
+100 % if required by briefl y tapping the center 
SET
key of the right touch pad and its selection keys. 
Simultaneously tapping both 
cd or ef selection 
keys on the right touch pad (CLEAR) will reset the 
mixer ration in inverse video again to the +61 % 
default value. 
If the swashplate control system (collective pitch, 
roll and pitch-axis) does not respond to the joysticks 
properly, you should alter the mixer directions 
("+" or "-") before trying to correct the directions 
of servo rotation.
Note:
Ensure that changed mixer values do not result in the 
servos mechanically striking their end-stops.
Using the selection keys on the left or right touch pad, 
page to the menu option …
Phase settings
Phase assignment
Phase trim
Non-delayed chan
Timers (general)
Fl. phase timers
Wing mixers
Free mixers
MIX active/phase
MIX-only channel
Dual mixer
Fail-safe adjust
Phase settings
Phase assignment
Non-delayed chan
Timers (general)
Fl. phase timers
Helicopter mixer
Free Mixers
MIX active/phase
MIX-only channel
Dual mixer
Swashplate mixer
Fail-safe adjust
… on the multi-function menu. Briefl y tap the center 
SET
 key of the right touch pad to open this menu 
option:
F A I L     S A F E
Pos
hold
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
DELAY : 0.25s
STO
The higher level of operating safety exhibited by 
the HoTT system when compared to traditional 
PPM technology results from the fact that the 
microprocessor built into the HoTT receiver not only 
exclusively processes the signals of "its" transmitter, 
but can also clean up "dirty" control signals that it 
receives. Only when these signals become too error-
prone or garbled due to outside interference does the 
processor automatically replace the disrupted signals 
   Fail-safe
Fault condition setpoints