Fail Safe Function "Fail Safe - FUTABA 4GRS Instruction Manual

Fail Safe Function "FAIL SAFE"

Fail Safe Mode (F/S)
This function moves each servo to a preset position when the receiver does not receive a
clear signal from the transmitter.
-When the condition set at "FHSS" is Rx type, fail safe (F/S) can be set only for throttle (TH). Other channels are set to the
normal mode.
-The fail safe data is transferred from the transmitter to the receiver 10 seconds after the transmitter power is turned on. The
data is transferred every 5 seconds after that. Be careful because normally the transmitter power is turned on first and the re-
ceiver power is turned on next and the data is transferred for approximately 10 seconds after the receiver power is turned on.
-For gasoline engine cars, for safety we recommend that this fail safe function be used to set the throttle channel in the direc-
tion in which the brakes are applied.
Hold mode (HOLD)
This function holds the servo/s at the position they were in immediately before recep-
tion was lost. This applies to the T-FHSS type (R304SB...,etc.) and the S-FHSS type
(R2104GF...,etc.) receivers only. When the receiver used is an R603GF/2004GF or other
FHSS type, this function is not available.
Off mode (OFF)
In this model the receiver stops outputting a signal to the servos if the transmitter signal
is lost. The servos become effectively unpowered.
The F/S, HOLD, and OFF modes are automatically reset when signals from the trans-
mitter can be received again.
Battery fail safe function (BFS)
If the receiver battery voltage drops below a certain value when this function is enabled,
the throttle servo moves to the position set by fail safe function. When the battery volt-
age recovers, the battery fail safe function is automatically reset.
-This function cannot be used when the throttle (TH) is not set to fail safe (F/S).
-This function is for the T-FHSS type (R304SB...,etc.) and the S-FHSS type (R2104GF...,etc.) receiver only. It cannot be used
with the R603GF and R2004FG and other FHSS type.
Display to "FAIL SAFE" screen by the following method:
(MENU 2 screen)
(HOME screen)
Press
Setting item
MODE :F/S mode selection
POSI
B-FS
VOLT
(MENU 1 screen)
Select
"FAIL SAFE"
Press
:F/S positon set
:B-FS set (throttle only)
:B-FS voltage set (throttle only)
Fail Safe Function "FAIL SAFE"
(All channel)
(FAIL SAFE screen)
Press
cursor position [RT]
Press
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