Operation Manual

Free Programmable Mixer
(access via Set-Up Menu)
80 Helicopter
Freely Programmable
Mixer
Additional to the pre-programmed mixer functions
contained in the helicopter program are two freely
selectable mixers, which are characterized by the
letters A and B and the number of the input function
and the output channel. The lower display line will
show either the mix portion and direction, or "OF" if
the mixer is switched off using the associated
external switch.
Setting example for mixer "A"
1. Channel Selection
.
Firstly the CH SEL button is pressed until in the
upper display line "Ach" appears. Using the INC key
the number of the input channel 1 to 8 is entered (left
digit), with the DEC key the channel of the receiver
output 1 to 8 (right digit). Pressing the CLEAR button
performs a reset and sets input function and output
channel to "1", mix proportion and offset to 0% and
the mixer switch on "ON".
2. Allocation of a mixer switch
.
Pressing the CH SEL button changes the display to
"ASW" (A-Switch). This is where it is specified
whether the mixer remains constantly switched on,
(display "ON" is shown), or whether it is turned on
and off by an assigned external switch. The selection
is made with the INC or DEC keys. The lower line
of the display shows the transmitter board socket for
the external switch allocated:
Mixer Transmitter Socket
A 7
B 6
Note
:
Switch 6 also simultaneously switches the mixers for
static and dynamic torque compensation, and switch
7 the automatic gyro gain reduction.
3. Setting mix proportion and mix direction
.
By pressing the CH SEL button the option for
adjusting the mix proportion and direction appears.
Using the INC and/or DEC buttons the mix
proportion can be set between 0 and ±125%,
symmetrically to the neutral point (pressing CLEAR
resets the value to 0%). If an external switch was
assigned, the mixer can be switched off now and the
display will show "OF".
4. Specify the mixer neutral point (offset setting)
.
If CH SEL is pressed again, you arrives at the offset
setting. To set the offset place the control stick in the
desired position and press the CLEAR key. The
offset is indicated in the display. (value range:
approx. -85 to +85).
If an external switch has been assigned and is
switched off, the display shows "OF".
(If you want to change the stored offset, the mixer
offset setting is re-entered and the new position
stored as above).
Thus the programming of mixer A is completed. The
setting of mixer B is completed in the same way.
Note
:
In the helicopter programs control function 6 cannot
be used as input signal for a mixer as it does not
possess an “output point for mixers” (see the block
diagram on page 62). The signal from this channel
only affects receiver output 6 directly and servo
travel is limited to 25% of the normal value.
Dependent on the type of swashplate (Swash Mixer)
certain control paths are linked with one another (as
with all finished mixers). For example, the basic
standard mixer "N" links control function 1 with
channel 6. The mix proportions of a finished and a
freely programmable mixer can be overlaid in such a
way that a servo movement is changed.