KAVAN R-20B Plus brushless controller 20A BEC

Product detailed description

A new generation of programmable microprocessor controllers KAVAN for brushless, sensorless AC motors, designed using the latest semiconductor technology with excellent performance characteristics while maintaining very simple and user-friendly operation. It is used to control the speed of AC electric motors in recreational and sports aircraft models when powered by LiPo/Li-ion/LiFe and NiCd/NiMH batteries. The controller is equipped with a linear power stabilizer BEC, which provides power to the receiver and servos from the drive battery. For easy controller settings, the LED programming card KAVAN PRO (also used for programming KAVAN PRO series controllers), which is sold separately.

Description and functions:

The controller is equipped with a high-performance 32-bit ARM M4 microprocessor with a clock frequency of up to 96 MHz. DEO (Driving Efficiency Optimization) optimized control technology significantly improves throttle response and efficiency of power stage control, reduces the temperature of the controller.
Suitable for most aircraft AC motors powered by 2-3S LiPo batteries.
For powering from NiCd, NiMH, LiPo, Li-ion, LiFe batteries
Linear power stabilizer BEC 5.0 V with a load capacity of up to 3 A.
Adjustable timing for optimal adaptation to a given motor.
Adjustable PCO circuit - disconnecting the motor when the supply voltage drops.
Normal/Soft/Very soft start modes are suitable for both direct drive and gearbox motors.
Safe start-up (prevents the motor from starting when turned on).
A series of protection functions: start-up protection, controller thermal protection, capacitor thermal protection, overload protection, overcurrent protection, abnormal power supply protection and control signal loss protection effectively extend the life of the controller.
The programming cable for connecting the controller to the KAVAN PRO LED programming card allows the user to program the controller anytime, anywhere.
Throttle range calibration for perfect adaptation to the control signal from your RC kit.

Programmable functions:

Brake type: Brake off, normal brake (with braking intensity adjustable in 3 levels), reversing (allows you to turn on the engine reversing using an additional channel with a switch, the engine reversing speed is controlled by the throttle controller), linear reversing (allows you to turn on the engine reversing using an additional channel with a proportional controller, with which the engine reversing speed is controlled).
Brake Strength: The braking intensity is adjustable to 60, 90 or 100% for the “Normal Brake” mode.
Motor Disconnection Method: Soft Shutdown: The ESC will gradually reduce the power to 60% of full power over 3 seconds after the voltage protection is activated. Hard Shutdown: The motor is immediately shut down.
Number of LiPo cells: We recommend setting manually for 100% reliable voltage protection function. The ESC will automatically calculate the number of cells in the connected battery according to the “3.7 V per cell” rule if you select automatic detection.
Voltage Protection: The voltage protection threshold level is adjustable to 2.8 V/cell, 3.0 V/cell or 3.4 V/cell; the protection can also be turned off completely.
Launch: Determines the throttle response during jump acceleration from 0% to 100%. Normal/Soft/Very Soft start corresponds to a start-up time of approx. 200 ms/500 ms/800 ms.
Timing: Adjustable to 5, 15 or 25 °.
DEO Freewheel: This function can be turned on or off; it can provide better linearity or smoother throttle response.
Search Mode: Can help in searching for a model that has landed in a difficult terrain - the controller will beep the motor when the throttle is pulled to zero for a preset time.

Protective functions of the regulator:

Start-up protection: The regulator measures the engine speed during start-up. If the revolutions stop increasing or their increase is not stable, the controller evaluates it as a wrong start. If at this moment the throttle is at less than 15%, the regulator will automatically try to restart the engine; if the throttle is at more than 20%, you must pull the throttle all the way down to restart the engine again.
Thermal protection: If the temperature of the controller exceeds 120°C, the controller will limit the output power to 60% (if the soft shutdown of the motor is set) or turn off the motor completely (if the hard shutdown is set).
Loss of throttle signal: The controller immediately shuts down the engine if the signal is missing for 0.25 s. As soon as a normal signal is received, the controller resumes normal function.
Overload protection: The controller shuts down the motor or restarts automatically when its load suddenly increases to a very high value.
Voltage protection: As soon as the voltage of the drive accumulator drops below the set threshold level, the voltage protection of the regulator is triggered. The controller will limit the output power to 60% (if soft motor shutdown is set) or completely shut down the motor (if hard shutdown is set).
Abnormal supply voltage protection: If the drive battery voltage is not within the allowed range for the controller, the abnormal supply voltage protection will be triggered; the controller will signal a warning by beeping the engine.

Use: Aircraft
Type: Alternating
Continuous current: 20A
Max. peak current: 40A
NiXX articles: 6 - 8
LiXX articles: 2 - 3
BEC voltage: 5V
BEC current: 3A
Length: 45mm
Width: 23mm
Height: 8mm
Weight: 19g
Regulation: Unidirectional
Brake: Yes
Input for sensors: No
Programmable: Yes