HobbyKing 20A UBEC User Manual Download Page 9

The motor is in a inverted 
running

The  order   of  wiring  between 
motor and ESC is wrong

1.  Alter   any   two   connection   line   among   three 
connection line between ESC and motor
2.   Change   direction   by   changing   the   rotation 
setting of motor directly with remote control or 
programming panels.

The   motor   stops   in   the 
flying. 

The voltage of battery is lower 
than   default   protection 
threshold for low voltage, and 
the   protection   mode   for   low 
voltage is cut off. 

1.   Set   the   protection   threshold   for   low   voltage 
correctly.   Fly  with   battery  of   full   voltage.  The 
protection mode for low voltage is set in mode of 
reduces power (default mode). Please land your 
model airplane in time if you find reduction of 
power during the flying.
2. Control the model airplane flying in the scope 
of remote control
3.   Pay   attention   to   the   voltage   of   battery   in 
remote control. Please land the model airplane in 
time if there is large reduction in voltage.

Lost of throttle signals

1.   Check   the   operation   of   remote   control   is 
correct.
2.   Check   if   the   remote   control   is   suitable   to 
receiver.
3.   Please   try   restarting   to   recover   normal 
operation   if   there   is   strong   electromagnetic 
interference in the operating environment. If the 
problem occurs again and again, please change 
flying   site   for   there   is   too   strong   interference 
from outside environment in this flying site. 

Poor contact in wiring. 

Check   the   connection   between   plug   of   battery 
pack, output line of battery and connection line of 
motor is reliable.

Summary of Contents for 20A UBEC

Page 1: ...r requirements It fully reflects the smart property of our products as a unique advantage Support unlimited rotate speed of brushless motor Support the function of fixed speed Delicate circuit design...

Page 2: ...onds can reach 8A 2 The ESC with UBEC supply steering engine with linear power The output voltage is 5 5v The load current is 1A 3 OPTO means that there is no BEC inside ESC The steering engine and re...

Page 3: ...ou need Remark Can also set with programming panels optional accessories Refer to specification of programming panels for setting method 1 Brake turn on turn off Turn on the propeller stops immediatel...

Page 4: ...aring dropping under momentary load The setting mode is recommended to use in fixed wing model with gear box or helicopter Smooth startup the lag time of throttle response between the starting and hig...

Page 5: ...position during the four beeps Confirm and reserve the setting The introduction for the setting of programming The setting of programming the five following warning tone is as follows A beep short sou...

Page 6: ...landing instead of turning off all output power The ESC will recover to max power as the temperature falls Protection for lost of throttle signals The ESC will reduce the output power to motor when th...

Page 7: ...ry or servo system shall not exceed the rules for ESC The voltage of battery shall not exceed the scope of working voltage of ESC Pay attention to the polarities of battery Wrong polarities will damag...

Page 8: ...ter power on of ESC motor fails to work and gives out warning tone two bees and short pause There is a poor contact or welding between ESC and motor Check the end of connector or change connector or w...

Page 9: ...your model airplane in time if you find reduction of power during the flying 2 Control the model airplane flying in the scope of remote control 3 Pay attention to the voltage of battery in remote con...

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