FeiYu Tech FY-91Q - Manual (Page 27)

GuiLin FeiYu Electronic Technology Co., Ltd
GuiLin FeiYu Electronic Technology Co., Ltd www.feiyudz.cn E-mail: [email protected]
Page 26
(e) If this procedure is successful, proceed with flight tests as per the manual.
ESCs Not Arming
1. Many types of ESCs have an arming protection set up where they expect to
see an incoming signal as soon as they are powered up. If the ESC does not
‘see’ this input signal, it will automatically inhibit the arming process.
2. Upon powering up, the FY-91Q takes about 1 to 2 seconds to initialize.
During this time, signal is not immediately sent to the ESCs. Due to (1)
above, the ESC will not arm even after the FY-91Q begins sending signal to
the ESC.
3. As a result, the ESC refuses to arm.
4. To confirm this, carry out the following:
(a) Remove all your ESC red wire (positive) connection to the
FY-91Q.
(b) Install an external BEC (at least 3A output).
(c) Turn ON your Radio Transmitter and set the minimum to -30%.
(d) Power up the FY-91Q and your RC receiver via the external BEC,
but NOT the ESCs.
(e) After the FY-91Q initializes, power up your ESCs.
(f) Decrease your throttle to - 100 until the ESC arms.
(g) This proves your ESC has the delayed activation protection.
5. An easy set up to solve this is to have a two plug power up system. i.e. power
up your BEC first, before powering up your ESCs.
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