Detailed Product Description

The manual introduces Keya BLDC motor controllers features, installation and maintenance. Read the manual carefully and thoroughly before using the controller. If you have any questions, please contact the support center of Kelly Controls, LLC.

Keyas 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. It uses high power MOSFET, PWM to achieve efficiency 99% in most cases. Powerful microprocessor brings in comprehensive and precise control to the controllers. It also allows users to set parameters, conduct tests, and obtain diagnostic information quickly and easily

Specifications

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

(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)        Cutting back current at low temperature and high temperature to protect battery and controller. The current will ramp down quickly if controllers temperature is higher than 90, and shut down at 100. Low temperature current ramping down usually starts at 0.

(6)        The controller keeps monitoring voltage during regen. It will cut back current then cut off regen 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: Default to throttle switch, brake switch and reverse switch. Closing to ground is to activate.

(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. Cutting off the power if any fault is detected.

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

(15)Configurable boost switch. Output can arrive at the maximum current 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 regen brake function. Novel ABS technique provides powerful and smooth regen.

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

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

(21)Thermal overload detection and protection to safeguard the motor from over temperature, with recommended Silicon temperature sensors KTY83-122.

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

(23)Optional CAN bus.

(24)Optional supply voltage 8-30V.

Caution! Regeneration has braking effect, but can't replace mechanical brake. Mechanical brake is required to stop your vehicle. Regen isnt a safety feature! Controller may stop regen to protect itself (not you!).

1)     Intelligence with powerful microprocessor. 

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

3)     Current limit and torque control.

4)     Battery current limiting available, doesnt affect taking off performance.

5)     Low EMC.

6)     LED fault code helps user debugging.

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

8)     Rugged aluminum housing for maximum heat dissipation. 

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

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

11) Any number of poles supported.

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

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

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.

J1 Pin Definition

1-      PWR: Controller power supply (output). The pin is Red  LED for S/N less :08XXXXXX.

2-      Current meter. <200mA

3-      Main contactor driver. <400mA

4-      Alarm: To drive reverse beeper. <200mA

5-      RTN: Signal return

6-      Green LED: Running indication

7-      RTN: Signal return

8-      RS232 receiver

9-      RS232 transmitter

10-  CAN bus high

11-  CAN bus low

12-  Reserved

13-  RTN: Signal return, or power supply return

14-  Red LED: Fault code.The pin is PWR for S/N less :08XXXXXX.

J2 Pin Definition

1-      PWR: Controller power supply (input)

2-      RTN: Signal return, or power supply return

3-      RTN: Signal return

4-      Motor temperature input.

5-      Throttle analog input, 0-5V

6-      Brake analog input, 0-5V

7-      5V: 5V supply output. <40mA

8-      Throttle switch input

9-      Reverse switch input

10-  Brake switch input

11-  Hall phase C

12-  Hall phase B

13-  Hall phase A

14-  RTN: Signal return