User manual

308
Programming examples - Control of temporal processes
Control of temporal processes
using time delay and curve mixers
An interesting, but little known, facility included in the
software of the mc-16 HoTT transmitter with option-
ally unlocked »MIX-only channel« and «Channel
sequencer« options, and of the standard mc-20
HoTT transmitter, is the ability to set up virtually
any servo movement to last up to 9.9 seconds via
a switch, in addition to the features available in the
»Channel sequencer« menu; see page 256.
The programming for this should be shown on the
basis of some examples in the following. Additional
applications can certainly be found once you become
familiar with these capabilities.
The programming is begin in the menu …
»Control adjust« (page 118 or 122)
… and in order to be able to approach any point of
the control curve during the programming, first as-
sign one of the proportional controls to the desired
control channel – in this example the side-mounted
left proportional slider “Lv1” to the Input 9. However,
leave the standard default “GL” in the “typ(e)” column
so that this setting is effective for all flight phases
analogously to the free mixers to be programmed in
the following:
In6
offset
0%
0%
0%
–––
0%
In7
In8
In9
–––
–––
GL
GL
GL
GL
typ
fr
fr
fr
–––
Lv1
SEL
However, if necessary you can create phase-specific
sequences using the “PH” option in the »Control
adjust« menu, and the »Mix active / phase« menu;
see page 215.
The input of a time delay in the “- time +” column most
right should also be dispensed with initially:
Then in the menu …
»Mix-only Channel« (page 216)
… of the selected control channel, “9” in this case, is
set to “only”:
MIX-only channel
only
normal
7 8 9
10
11
12
It is mandatory that this is set to “only (MIX)”, be-
cause the control curves of the curve mixers de-
scribed in the following example only function on the
output of the same channel as desired if there is no
direct connection between the control and output!
Only then can the linear control signal be manipulat-
ed almost arbitrarily around a curve mixer and to the
appropriate output.
Therefore, in the next step, switch to the menu …
»Free mixers« (beginning on page 205)
… and program a curve mixer for the same channel,
e. g. from “9” to “9”:
ty
fr
to
M8
C9
C10
??
??
9
9
C11
C12
??
??
??
??
??
??
On this second screen the desired path of the control
curve is then set, whereby the following examples
should only be “food for thought” for the design of
your own control curves.
For example, the control curve could be for …
… delayed lighting of a headlight after the begin-
ning of the extension of the landing gear:
+50%
–100%
Input
Output
Point
1
C.Mix 9
Curve
off
9 9
–100%
… the control of a landing gear flap which closes
again after the landing gear is extended:
–100%
–100%
L
9 9
–100%
Input
Output
Point
C.Mix 9
Curve
off
… a smooth motor start-up or the extension of a
self-launch …
–100%
–100%
L
9 9
–100%
on
Input
Output
Point
C.Mix 9
Curve
… triggered by the same switch, but with a de-
layed startup of the drive motor connected to
Output 10:
–100%
–100%
Input
Output
Point
L
C.Mix10
Curve
9 10
–100%
on