User manual

244
Program description - Telemetry
“MODE”, “F.S.Pos.” and “DELAY”. The description of
these variants begins with the “MODE” option further
below.
Value Explanation
Possible
settings
OUTPUT
CH
Output channel
(servo connection
of the receiver)
1 … depending
on receiver
INPUT CH Input channel
(channel
coming from the
transmitter)
1 … max. 12
MODE Fail-Safe mode HOLD
FAIL SAFE
OFF
F.S.POS. Fail-safe position 1000 … 2000 µs
DELAY Reaction time
(delay)
0.25, 0.50, 0.75
and 1.00 s
FAIL
SAFE ALL
Save of the Fail-
safe positions of all
control channels
NO / SAVE
POSITION Display of the
saved Fail-safe
position
Between approx
1000 and 2000 µs
OUTPUT CH (servo connection)
In this line you select the respective OUTPUT CH
(servo connection of the receiver) to be set.
INPUT CH (selection of the input channel)
As already mentioned on page 240, the eight con-
trol functions of the standard eight-channel
mc-16
HoTT transmitter, the twelve control channels of the
mc-16 HoTT with twelve channels unlocked, and
the standard twelve-channel mc-20 HoTT transmit-
ter can be arbitrarily distributed to multiple receivers,
if necessary, or even assigned to multiple receiver
outputs with the same control function. For example,
this might be used in order to be able to control two
servers for each aileron flap or an oversize rudder
with linked servos instead of an individual servo.
Distribution to multiple HoTT receivers, in turn, of-
fers the advantage of not having to use a long servo
cable, e. g. for large models. In this case, bear in mind
that only the receiver selected in the line “TEL.RCV.”
through the »Telemetry« menu can be addressed!
The 8 respectively 12 control channels (INPUT CH) of
the
mc-16 HoTT or mc-20 HoTT transmitter can
be appropriately managed through so-called “Chan-
nel Mapping” (channel assignment) whereby a differ-
ent control channel is assigned to the servo connec-
tion selected in the OUTPUT CH line for the receiver
in the INPUT CH line.
BUT CAUTION: If, for example, “2AIL” is specified in
the transmitter on the “Aileron/camber flaps” line of
the »Base setup model« menu then control function
2 (Aileron) will already be assigned in the transmit-
ter to control channels 2 and 5 for distribution to the
left and right ailerons. The receiver’s corresponding
INPUT CH, which must also be mapped, would be
the channels 02 and 05 in this case; see the following
example.
Examples:
• You would like to control each aileron of a large
model with two or more servos.
Assign one of the two standard aileron control
channels 2 or 5 as INPUT CH to the correspond-
ing OUTPUT CH (servo connections) depending
on the left or right bearing surface.
• You would like to control the rudder of a large
model with two or more servos.
Assign the same INPUT CH (control channel) to
the corresponding OUTPUT CH (servo connec-
tions). In this case, this is the standard rudder
channel 4.
MODE
The settings of the options “MODE”, “F.S.Pos.” and
“DELAY” determine the behavior of the receiver in the
event of a failure in the transmission from transmitter
to receiver.
The setting programmed under “MODE” is always
based on the channel set in the OUTPUT CH line.
The factory setting for all servos is “HOLD”.
For each selected OUTPUT CH (servo connection of
the receiver) you can choose between:
• FAI(L) SAFE
With this selection, in the event of a failure the cor-
responding servo moves to the position shown in
the “POSITION” line for the remainder of the fail-
ure until the “Delay time” set in the “DELAY” line
has lapsed.
• HOLD
With a setting of “HOLD”, in the event of a failure
the servo maintains the last correctly received ser-
vo position for the duration of the failure.
• OFF
With a setting of “OFF”, in the event of a failure the
receiver discontinues the retransmission of (tem-
porarily stored) control impulses for the respective
servo output for the duration of the failure. In other
words, the receiver switches the impulse line “off”.
BUT CAUTION: Analog servos and even some
digital servos no longer put up any resistance
against the previous control pressure during the
failure of the control impulse and are more or less
pushed out of their position as a result.
F.S.POS. (Fail-safe position)
For each OUTPUT CH (receiver servo connection),
set the position the given servo should assume in
“FAI(L) SAFE” mode, i. e. in the event of a failure, via
the “F.S.POS.” line. This is done by first activating the
value field (inverse representation) with a tap on the
SET key of the right four-way button then using the