User manual

Definition of terms
Control, function input, control channel, mixer, switch, control switch
To make it easier to use the mz-18/24 HoTT manual,
we offer a few definitions of terms that appear
repeatedly in the manual.
Control function
A control function is understood as the signal for a
specific control function independent of the signal within
the transmitter. With airplanes, the control signals would
be throttle, rudde, aileron or elevator; with helicopters,
these would be pitch, roll, nick or yaw. The signal of
a control function can be transmitted directly into one
control channel, or through a mixer to several control
channels. A typical example of the latter are separate
aileron servos, or the use of two roll or elevation servos
in helicopters. The control function includes the influence
of the mechanical control path on the corresponding
servo. This can be spread or concentrated and modified
from linear to highly exponential.
Controls
Controls are the control elements on the transmitter
that are activated directly by the pilot that control
the connected servos, speed controllers, etc. on the
receiver. These include:
• The two control sticks for control functions 1 to 4 and
its trims. These four functions in both model types
(wing and helicopter) can be exchanged using the
mode setting in the software, such as throttle left
or right. The control stick function for Throttle/brake
control for fixed-wing models or throttle/pitch control
in helicopters is frequently identified as the CH1
control.
• The two (mz-18 HoTT) or four (mz-24 HoTT)
proportional dials DV1 and DV2 or DV1 … DV4
• The two side proportional rotary controls SL1 and
SL2 mounted on the bottom.
• Switches S1 … S8
• INC/DEC buttons DT1 and DT2 of the mz-24 HoTT
transmitter
With the type DV and SL proportional controls as well
as the INC/DEC buttons, the servos directly follow the
control position, whereas only a two or three-stage
adjustment is possible with a switch.
The assignment of the controls and switches to servos
5 … 9 of the mz-18 HoTT transmitter or 5 …12 of the
mz-24 HoTT transmitter is freely programmable.
Important note:
In the basic programming for the transmit-
ter, inputs 5 … 8 and 5 … 11 for helicopters
and 5 … 9 and 5 … 12 for airplanes are
generally free, that is, not yet assigned.
Function input
This is an imaginary point in the signal flow and should
not be confused with the control connector on the
printed circuit board. The selected control mode and the
settings in the "TX OUT SET" line of the "TX ctl" sub-
menu (Transmitter control) of the base menu influence
the sequence beyond the physical connecting points,
and this can generate differences between the number
of function inputs and the number of subsequent control
channels.
Control channel
From the point at which a signal contains all control
information necessary for a particular servo, whether
directly from the control or indirectly via a mixer, the
term control channel is used.
For example, the "aileron" control function of a
fixed-wing model for the model type "2AILE" is
divided into control channels for the left and
right aileron. Analogously, the "Roll" control function for
the helicopter model "3Sv(2Roll)" governs the
control channels for both the left and right roll servo.
This signal is only influenced by the settings made in the
submenus "E.P.A" (end point adjustment), "REVERSE"
(servo reverse/delay) and "Sub-Trim" (servo middle
and neutral position) to adjust the servo, and possibly
the settings in the submenu "OUT.SWAP" (transmitter
output) and is then transmitted by the transmitter
through the RF module. Once it arrives in the receiver,
this signal may be modified by settings saved in the
"Telemetry" menu, after which it controls the associated
servo.
Mixer
The transmitter program contains a variety of mixing
functions. These allow a control function to influence
several servos, or several control functions to influence
one servo.
In this context, you can refer to the numerous mixing
functions described starting on page 98.
Switch
The series of toggle switches S1 … S8 can also be
included in the control programming. The switches are
however generally also intended to switch program
options such as to start and stop the timers, activate
and deactivate mixers, as trainer switches etc. Each of
the switches can be assigned any number of functions.
Related examples are listed in the manual.
Control switch
Since it is occasionally practical to automatically switch
a timer or a function on or off when a control is in a
specific position (a stopwatch turns on/off to measure
engine operating time), the program for the mz-18
HoTT and mz-24 HoTT transmitters also allows you to
program control switches.
With these control switches, all you have to do is specify
the switching point along the control path in the direction
of switching. More information can be found in the
section "Control, switch and control switch assignment“
from page 38.
37
Definition of terms
S1006_mz-24.3.en.indd 37 17.12.2014 15:21:23