Description: _x000D_ This controller is designed for high power brushless motor. It is small but has many functions, including steering gear test function. _x000D_ _x000D_ _x000D_ Feature:_x000D_ With micro single chip system, this speed control can achieve simple system programming, which can suit better high-speed high power brushless motors. It has several functions:_x000D_ 1.Safety Startup: To avoid any injury, the motor will not start up immediately if the potentiometer of speed controller is not at the lowest gear, which is necessary for high-speed high-power motor to protect user's safety._x000D_ 2. Temperature Protection: The speed control has aluminum heat sink, which allows it work at 30 A continuously. When temperature reaches 110, temperature detect system will send a protection signal and system will auto decrease 60% power output to protect speed control and motor. It will back to normal power after temperature is decreased. To protect the actuator module, please dissipate heat during long-time using._x000D_ 3. The signal loss prevention: Auto shut down when there is no signal detected from PWM signal generator(potentiometer ). _x000D_ 4. Power Identification System: The speed control has power identification system, which is designed for high speed high power motors such as in model plane. It is not suitable for low-power brushless motors._x000D_ 5, Programming Functions: With single-chip control system, some functions could be altered: _x000D_ a, Startup: Flexible slow startup/direct startup_x000D_ b, Braking: Reverse load quick braking/free braking_x000D_ c, Adjustable Timing: Small/medium/large_x000D_ d, Low Voltage Protection: Low/medium/high_x000D_ e, Battery Types: Lithium /nickel chrome/NIMH/plumbic acid_x000D_ 6. Back to Factory Settings: Wrong operation can be cleared_x000D_ _x000D_ 6. Other Function(please ignore if only used for motor drive ) : The external PWM signal generator can send signal to control speed or to turn steering gear, therefore it can test steering gears less than 55 g. _x000D_ _x000D_ _x000D_ Specifications:_x000D_ Rated Voltage: DC 6-12.8 V (12 V suggested, no higher than 12.8 V)_x000D_ Rated Current: 30A(no higher than 40 A)_x000D_ Rated Power: 5 V 0.5 A_x000D_ Temperature Protection: 110 _x000D_ speed Control Range: 8%-98% _x000D_ Suitable Number of Poles: 2-18_x000D_ Startup Methods: Flexible slow startup/direct startup_x000D_ Braking Mode: Reverse load braking/without braking_x000D_ speed Control Signal: 8 KHz / 16 KHz fixed frequency PWM _x000D_ Steering Gear Test Function: Below 55 g _x000D_ _x000D_ _x000D_ Packaging list:_x000D_ 1 x Speed Controller_x000D_ 1 x Electric Control Board_x000D_ _x000D_ _x000D_ Note:_x000D_ _x000D_ New-style and old-style are shipped randomly.