24V 50A Brushless DC Motor Control

Price: 1
Brand Name: KEYA
Model Number: MMT-DC24DPW50AL
Country/Region: China
Post Date: Mar 16,2012

Product Description: 24V 50A Brushless DC Motor Control


REGENERATIVE BLDC programmable motor controllers provide efficient, smooth and quite controls for golf cart, go-cart, electric motorcycle, forklift, hybrid vehicle, electrical vehicle, electric boat, as well as industry motor speed or torque control. Powerful microprocessor brings in comprehensive and precise control to the controllers. It allows users to set parameters, conduct tests, and obtain diagnostic information quickly and easily.




(1) Naming descriptions:

e.g.: MMT-DC24DPW120AL (Jinan Regenerative brand-DC-rated voltage is 24vdc-Brushless-Peak current is 120A- With-Regeneration)


(2) Parameters range:

Rated voltage DC24V, Peak current 50-120A

Rated voltage DC36V, Peak current 50-120A

Rated voltage DC48V, Peak current 50-120A

Rated voltage DC72V, Peak current 50-120A


Note: Rated current is 40-50% about peak current


1. General functions

(1)        Extended fault detection and protection. LED flashing for fault code.

(2)        Monitoring battery voltage. It will stop driving if battery voltage is too high. It will cut back then stop driving if voltage is going too low.

(3)        Built-in current loop and over current protection.

(4)        Controller temperature measurement and protection

(5)        Current cutback at low temperature and high temperature to protect battery and controller. The current will ramp down quickly if controller temperature is higher than 90C, and shutdown at 100C. Low temperature current ramping down usually starts at 0C.

(6)        The controller keeps monitoring voltage during regenerative. It will cut back current then cut off regenerative if voltage is going too high.

(7)        Configurable to limit max reverse speed to half of max forward speed

(8)        Configurable and programmable with RS-232. Software upgradeable. Windows GUI      provided.

(9)        Provide 5V sensor supply

(10)   3 switch inputs. Close to ground to activate. Default to throttle switch, brake switch and      reverse switch.

(11)   3 analog inputs, 0-5V. Default to throttle input, brake input and motor temperature input

(12)   Reverse alarm output. Recirculation diodes provided.

(13)   Main contactor driver. Cut off the power if any fault detected.

(14)   Current meter to display both drive and regenerative current. Save shunt!

(15)   Configurable boost switch. Output the maximum current achievable if the switch is enabled and turned on. 

(16)   Configurable turbo switch. Limiting max power to half if the switch is enabled and turned on.

(17)   Configurable max reverse power to half.

(18)   Enhanced regenerative brake function. Novel ABS technique provides powerful and smooth regenerative.

(19)   Configurable 12V brake signal input, in lieu of motor temperature sensor. 

(20)   Optional joystick throttle. Single 0-5V signal for both forward and reversing.

(21)   Motor over temperature detection and protection, with recommended thermistor.

(22)   3 hall position sensor inputs. Open collector, pull up provided.

(23)   Optional supply voltage 8V-30V.


2. Features

1)     Intelligence with powerful microprocessor. 

2)     Synchronous rectification, ultra low drop, fast PWM to achieve very high efficiency.

3)     Current limit and torque control.

4)     Battery current limiting available, doesn’t affect taking off performance.

5)     Low EMC.

6)     LED fault code helps user debugging.

7)     Battery protection: current cut back, shutdown and warning at high or low battery.

8)     Thermal enhanced rugged aluminum housing. Rugged connectors.

9)     Thermal protection: current cut back on low temperature and high temperature to protect battery and controller.

10) Configurable 60-degree or 120-degree hall position sensor.

11) Support any number of poles.

12) Up to 60000 electric RPM. (Electric RPM = mechanical RPM * motor poles)

13) Three modes of regenerative: brake switch regenerative, release throttle regenerative, 0-5V signal regenerative.

14) High pedal protection: Disable operation if power up with non-zero throttle.

15) Current multiplication: Take less current from battery, output more current to motor!

16) Easy installation: 3-wire potentiometer will work.  


3. Specifications

•Frequency of Operation: 16.6kHz.

•Standby Battery Current: < 1mA.

•5V Sensor Supply Current: 40mA.

•Supply Voltage: PWR, 18V to 90V for controllers rated equal or lower than 72V. 8V to 30V for 24V controller.

•Supply Current, PWR, 150mA.

•Operating Voltage, B+, 18V to 1.25*Nominal Voltage.

•Analog Brake and Throttle Input: 0-5 Volts. Can use 3-wire pot to produce 0-5V signal.

•Reverse Alarm, Main Contactor Coil Driver, Meter: <200mA.

•Full Power Operating Temperature Range: 0°C to 50°C (controller case temperature).

•Operating Temperature Range: -30°C to 90°C, 100°C shutdown (controller case temperature).

•Motor Current Limit, 1 minute: 50A-120A ,depending on model.

•Motor Current Limit, continuous: 20A-50A ,depending on model.

•Max Battery Current :Configurable.

Supplier Details:

Jinan Keya Electron Science And Technology Co., Ltd.

Sales:Ms. Brenda Liu

Contact Phone:86-531-88973078-8006

Main Products:Motor Controller

Business type:Manufacturer


User Reviews: 24V 50A Brushless DC Motor Control