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selection keys of the right four-way button to choose
the servo position. The adjustment takes place in 10-
µs increments.
Factory setting: 1500 µs (servo center).
Important notice:
The function "F.S.POS." has an additional meaning in
all three modes, "OFF", "HOLD" and "FAI(L) SAFE"
in the event that the receiver is switched on, but (still)
does not receive a valid signal.
The servo immediately travels to the fail-safe posi-
tion predefined in the "Position" line. In doing so, the
landing gear, for example, is prevented from retrac-
ting of the receiver is accidentally switched on while
the transmitter is switched off. In normal model mode,
on the other hand, the corresponding servo behaves
in accordance with the set "MODE" in the event of a
failure.
DELAY (fail-safe reaction time or delay)
Here you adjust the delay time after which the servos
should move to their predetermined positions in the
event of a signal interruption. This setting is adopted
for all channels and only pertains to the servos pro-
grammed to the "FAIL SAFE" mode.
Factory setting: 0.75 s.
FAIL SAFE ALL (global fail-safe setting)
This sub-menu allows servo fail-safe positions to
be established at the "push of a button" in a similar
manner to that described on page 220 for the »Fail
Safe« menu.
Switch to the "FAIL SAFE ALL" line and activate the
value field by touching the center
SET
four-way button. "NO" will be displayed in inverse
video. Then adjust the parameter to "SAVE" with one
of the selection keys of the right four-way button.
Now, using the operating elements of the transmit-
ter, move all servos to the desired fail-safe position
you assigned or want to assign in the line "MODE"
"FAI(L) SAFE". The current position of the control for
the channel which was just set is shown in the bottom
"Position" line:
RX FAIL SAFE
OUTPUT CH: 01
INPUT
MODE
F.S.POS. : 1500µsec
DELAY
FAIL SAFE ALL:
POSITION : 1670µsec
After a tap on the center
button, the display will change again, from "SAVE" to
"NO". The saved the positions of all servos affected
by this measure and adopted them in parallel to the
line "F.S.Pos." and the display then immediately shows
the following for the current OUTPUT CH (servo con-
nection):
RX FAIL SAFE
OUTPUT CH: 01
INPUT
MODE
F.S.POS. : 1500µsec
DELAY
FAIL SAFE ALL: NO
POSITION : 1670µsec
Switch off the transmitter and check the fail-safe posi-
tions based on the servo throws.
"Fail Safe" in combination with "Channel Map-
ping"
In order to ensure that the mapped servos – that is to
say servos which are controlled from a common con-
trol channel (INPUT CH) – react the same way even
in the event of a failure, the corresponding settings of
key of the right
the INPUT CH determine the behavior of the mapped
servos!!!
Therefore, the servo connections 6, 7 and 8 of a
receiver are mapped, for example, with one another,
whereby the OUTPUT CH (servo connections) 06,
07 and 08 are assigned as INPUT CH of the same
CH: 01
: FAI-SAFE
: 0.75sec
SAVE
SET
key of the right four-way
CH: 01
: FAI-SAFE
: 0.75sec
respective control channel "04" ...
RX FAIL SAFE
OUTPUT CH: 06
INPUT
CH: 04
MODE
: OFF
F.S.POS. : 1670µsec
DELAY
: 0.75sec
FAIL SAFE ALL: NO
POSITION : 1670µsec
RX FAIL SAFE
OUTPUT CH: 07
INPUT
CH: 04
MODE
: OFF
F.S.POS. : 1230µsec
DELAY
: 0.75sec
FAIL SAFE ALL: NO
POSITION : 1670µsec
RX FAIL SAFE
OUTPUT CH: 08
INPUT
CH: 04
MODE
: HOLD
F.S.POS. : 1770µsec
DELAY
: 0.75sec
FAIL SAFE ALL: NO
POSITION : 1670µsec
... the INPUT CH 04 determines the fail-safe behavior
of these three servos connected to the control chan-
nel 4 completely independently of the individual set-
tings of the respective OUTPUT CH:
RX FAIL SAFE
OUTPUT CH: 04
INPUT
CH: 04
MODE
: FAI-SAFE
F.S.POS. : 1500µsec
DELAY
: 0.75sec
FAIL SAFE ALL: NO
POSITION : 1500µsec
This is also the case, for example, if this is mapped
with INPUT CH 01:
Program description - Telemetry
245
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