ROBBE RASST Systems Bedienungsanleitung Seite 17

Changing from Analogue to Digital Servos
The receiver is pre-programmed at the factory to „Normal" mode
and is suitable for operation with standard analogue servos.
Proceed as described in the following to set a faster pulse output on chan-
nels 1-6, thus ensuring an even faster response time for digital servos.
To set digital mode:
1. Switch off receiver after „Pairing".
2. Press and hold the Link/Mode button for about 2-3 seconds while swit-
ching on the receiver, the red LED flashes.
3. Release the Link/Mode button. The monitor LED lights green and red.
4. Switch off the receiver to store the settings.
Follow the same procedure to change over from digital to analogue mode.
When pressing the button during changeover, the LED monitor flashes red
and green to indicate anolgue mode. Upon release, the Red LED will illu-
minate.
Note:
The Digital Mode only works on channels 1-6! NOTE: Do not connect
Analogue Servos when Digital Mode is selected. The high frequency
can lead to destruction of the servos. Check each adjustment on your
receiver! Take care that during this process athat no other FASST
transmitters are switched on in the local vicinity.
General information on 2,4 GHz RC
The 2.4 GHz system behaves differently to the previous radio control
systems which operated in the 27-40 MHz band.
• The propagation of 2.4 GHz signals is virtually linear. This means it is
necessary to always keep visual contact with the model.
• Large obstacles between the transmitter and receiver can dampen or
block signals.
• When close to the ground, damping of the transmission signal is
greater than is the case with 27-40 MHz systems.
The range close to the ground can be reduced on foggy/misty days and/or
when the ground is wet.
• The range can be drastically reduced when a model is close to the
ground and an obstruction (person, vehicle, object, etc.) moves bet-
ween the transmitter and receiver.
Failsafe / Hold-Mode Adjustment
It is possible to select between two alternative modes if there is no radio
link between the transmitter and receiver.
1. NOR (Normal) or Hold mode .
The last intact pulses are buffered in the transmitter and sent to the
servos in the case of fault. They are retained until further intact signals
are received from the transmitter .
2. (F/S) Failsafe position.
The gas servo assumes a position (which is also stored in the receiver)
preprogrammed via the HFM 12-FC module.
Turning on the function
• Press and hold the"F/S RANGE" button on the module for approxi-
mately 2 seconds when turning on the transmitter.
• To be able to see the set Mode, pay attention to the Module LED. The
Hold function is active when the green LED is permanently ON, and
F/S function is active when it flashes.
• Repeating the process returns it back to Hold Mode.
• To adjust the F/S) Position einzustellen, do the following :
Set the throttle stick to the required FAILSAFE Position.Press the „Easy
Link" button until the LED turns red to store the position.
NOTE:
To prevent the receiver from being paired to the „wrong" transmitter, make
sure there is no other FASST or RASST system in the immediate vicinity
during the pairing or F/S setting procedure. Do not set the F/S throttle
position so low that the motor cuts when in Failsafe.
IMPORTANT:
The R 607 FS and R 617 FS receivers features a failsafe function
which is only active on channel 3 (throttle).
F/S recommended settings:
With power models: program the throttle to move to idle and make a
slow turn in flight, with gliders: move the spoilers and flaps to their
airbrake positions. With helicopters, one should think seriously whe-
ther and which F/S position should be programmed for the throttle.
Setting the throttle to 80% appears sensible to hold the model in the
hover. However, there is a danger that if the transmitter is acciden-
tally turned off, that the model will start flying on its own. Setting it
to 20% stops a „flyaway" under interference conditions, however the
helicopter will crash. Since 2.4 GHz operation is a relatively inter-
ference free system, the Hold mode for helicopters is the preferred
alternative!