THUNDER TIGER ST4 G3, Instruction Manual & Parts Catalogue

7

FAIL SAFE(F/S) FUNCTION SETTING  

安全回復功能設定

6

ACE RC COUGAR 2.4GHz R/C system features a built-in Failsafe function to automatically set a servo command if the receiver 

loses the signal from transmitter due to interference. For safety, we strongly recommend to active the FAILSAFE function on 

your Cougar R/C system.

Setting up the Failsafe (F/S) Function:

a. After binding the transmitter and receiver, you can continually set up the F/S function. Turn on the transmitter power and then 

receiver power.

b. Press and hold the “Binding SW” button on the receiver for 10 seconds. The LED will start flashing GREEN on the receiver.

CAUTION ! Do not release the “Binding SW” button on the receiver until STEP C is completed.

c. Move and hold the throttle trigger to the position you want the control to be in if a failsafe condition should occur. First, keep 

steering wheel at neutral position

（

steering servo at neutral position

）

. To set up F/S function with the throttle servo position 

at "Brake", first push the trigger to the brake position and hold. To set up F/S function with servo position at "Neutral", keep 

the trigger at neutral position. 

NOTE ! Always set the throttle trigger to neutral or full brake position and steering servo to neutral position in 

case of any unexpected control error !

Factory pre-settings for RC car F/S function are :

Electric Car - Steering servo at neutral, throttle at neutral. 

Nitro Car - Steering servo at neutral, throttle at iddle and car brakes.

d. After the Step C, release the “Binding SW” button on the receiver first and then the throttle trigger. The LED turns to solid 

“RED” and then back to solid “GREEN” indicating the F/S function has now been activated.

e. Test by turning off your transmitter and watching the servo failsafe position activate. 

F/S at "Neutral" :

 To check the fail safe is working properly, by moving the throttle trigger to the full forward (full brake), hold 

this position and then turn off the transmitter. The F/S function should move the throttle servo to “Neutral” position and the 

steering servo to “Neutral” position.

F/S at "Brake" :

 To check the fail safe is working properly, by keeping the throttle trigger at neutral and then turn off the 

transmitter. The F/S function should move the throttle servo to “Brake” position and the steering servo to “Neutral” position.

f.  If the F/S function fails or need to change the F/S hold position, repeat the steps a) ~e). After the F/S is completed, you can 

start normal operation.

CAUTION ! ALWAYS reset FAILSAFE function after binding your transmitter & receiver.

ACE RC COUGAR 2.4GHz 

遙控系統內建安全回復功能，可設定當接收機因干擾或斷電而失去發射機訊號時，伺服機自動回復至

預設位置。安全起見，強烈建議您務必啟用安全回復功能。

安全回復功能設定

a. 

設定此功能前請先完成系統發射與接收之對頻。確定後，先打開發射機再開接收機電源。

b. 

壓著接收機對頻開關，約

10

秒鐘後

LED

會變為綠色快速閃爍。表示進入

F/S

設定模式。

注意！

C

步驟完成前不要放開接收機對頻鍵。

c. 

同時移動油門扳機至您想要設定

F/S

伺服機位置。轉向舵輪請保持中立點位置。

【如想要設定

F/S

油門伺服機位置為煞車，需先移動油門扳機至煞車位置不要鬆開。】

【如想要設定

F/S

油門伺服機位置為中立，請保持油門扳機在中立點位置。】

注意！油門伺服機安全回復位置建議設定為煞車或中立點，請勿設定為油門開啟位置，以免發生危險。本系統出廠預設

F/S

 功能如下： 

電車﹣轉向伺服機位置在中立點，速控器油門在靜止中立點。

油車﹣轉向伺服機位置在中立點，油門伺服機在怠速位置。

d. 

此時你可以放開接收機對頻鍵，然後再放開發射機油門板機。

LED

會變為恆亮紅燈，約

2

秒後又回到恆亮綠燈，此時表示

F/S

功

能已經設定完成。

e. 

檢查動作：

    F/S

油門伺服機位置設定為中立點

: 

將油門扳機全煞車，關掉發射機電源，檢視

F/S

伺服機位置動作是否轉回中立點位置。

    F/S

油門伺服機位置設定為煞車

: 

油門扳機保持中立點，關掉發射機電源，檢視

F/S

伺服機位置動作是否轉回煞車位置。

f.  

檢查無誤後，開發射機開關，然後接收機開始操作。

注意！重新對頻後，請務必重新設定安全回復功能。