General functions:

• Extended fault detection and protection functions. Customers can view error information via PC software or Android application.
• Constant monitoring of battery voltage. If the battery voltage is too high, the controller will stop driving. When the battery voltage is too low, the controller will gradually reduce the motor drive power as the battery voltage drops. The controller will also stop driving when the battery voltage reaches the preset “low battery voltage” threshold.
• Built-in current loop and over current protection.
• Configurable motor temperature protection range.
• Low and high temperature current reduction function to protect the battery and controller. The current begins to decrease when the case temperature reaches 90°C and shuts down completely at 100°C.
• During regenerative braking, the controller continuously monitors the battery charge voltage.
• The maximum reverse speed and forward speed can be configured between 20% and 100% respectively.
• The controller can be programmed and configured using the user program or Android app. For PC, please use Kelly USB cable or USB-RS232 converter to connect the controller and PC, and then you can use the user program. For Android, please use the Bluetooth Adapter purchased from us to connect the controller, and then use the configuration app on your Android device.
• +5 V and +12 V outputs are provided to power various Hall sensors and switches.
• Multiple switch inputs. By default, the switch input is valid when it is 12 V.
• 3 analog inputs (signal range is 0-5 V), which are throttle analog input, brake analog input and motor temperature input by default.
• The controller replicates the A-phase Hall sensor pulse signal for the pulse speedometer.
• Configurable boost function. When the boost switch is turned on, the motor will get the maximum output power. Regardless of the throttle position, the effect is the same as full throttle.
• Configurable joystick throttle. Both forward and reverse directions support dual symmetrical 0–5 V signals.
• Configurable motor over-temperature detection and protection, recommended thermistor KTY84-130/150 or KTY83-122.
• Only supports three-phase Hall position sensors. Open collector and pull-up resistors are provided.
• In brake analog regeneration mode, the controller requires another analog input as brake input.
• Enhanced regenerative braking function. Innovative ABS technology provides strong and smooth regeneration. Regeneration function can be activated at any speed.
• Cruise control. Can only be activated when driving in forward direction.
• Support Bluetooth. Bluetooth Adapter is required and needs to be purchased separately from our website. This adapter is only suitable for KLS controllers.
• Support user-defined serial port communication.
• CAN bus (optional), broadcast type, baud rate can be customized (default 250Khz). KLS-N controller does not include CAN bus by default.
• Bidirectional anti-slip function (Optional), prevent the stationary vehicle from moving in the opposite direction. When this function is enabled, the controller detects if the motor starts turning in the opposite direction from a stationary state and applies braking force to stop or slow down the vehicle.The braking force can be set as needed.
• Pedal assist system (optional) to provide assistance when the rider pedals.
• Electromagnetic brake (optional).
• Field weakening function (optional), to increase the max speed.
• Anti-theft function (optional), requires an external alarm.
• Built-in DC/DC module(Optional), to power external devices (13.5 V, 2A)
• Other user-defined customizable functions.

Features:

• Intelligent control powered by a high-performance microprocessor.
• Synchronous rectification, ultra-low voltage drop, fast SVPWM, and FOC for maximum efficiency.
• Electronic commutation.
• Monitoring of motor three phases, power bus, and supply voltage.
• Monitoring of 12 V and 5 V voltage sources.
• Detection of current in all three motor phases.
• Current control loop for precise motor control.
• Hardware overcurrent protection.
• Hardware overvoltage protection.
• Configurable limits for motor current and battery current.
• Low EMC.
• Battery protection with configurable current reduction, warnings, and shutdown at high or low voltage levels.
• PCB mounted on an aluminum base plate with a heatsink integrated into the bottom of the controller.
• Various connector sets supporting small signals; waterproof connector set provided by default.
• Thermal protection: automatic current reduction, warnings, and shutdown at high temperatures.
• Automatic identification of Hall sensors mounted at any angle.
• Configurable high-throttle protection: prevents operation if a high throttle signal is detected at startup.
• Current multiplication: draws less current from the battery while delivering higher current to the motor.
• Easy installation: operates with only a 3-wire potentiometer.
• Programming via standard PC or laptop; user program provided free of charge and easy to use.
• Supports motors with any number of poles.
• Supports electrical speeds up to 70,000 eRPM (electrical speed = mechanical speed × number of pole pairs; pole pairs = number of poles ÷ 2).
• Dustproof and waterproof under sealed conditions (IP66 rating).

General Specifications:

• Frequency of operation: 10 kHz, 16 kHz, 20 kHz (selectable).
• Standby battery current: < 0.5 mA.
• 5 V or 12 V sensor supply current: 40 mA max.
• Supply (PWR) current: 30 mA (typical).
• Battery voltage (B+) range: configurable.
• Standard throttle input: 0–5 V (3-wire resistive potentiometer) or 1–4 V (active Hall throttle).
• Full-power operating temperature range: 0 °C to 70 °C (MOSFET temperature).
• Operating temperature range: −40 °C to 100 °C (MOSFET temperature).
• Maximum battery current: configurable.
• Maximum motor current: configurable.

Downloads: 

Kelly KLS-N User Manual

Kelly KLS Configuration Program(PC Version)

Kelly KLS Configuration Program(Android Version)

Kelly KVD Controllers  Manual

Kelly KVD Configuration Program (PC Version)

Kelly KVD Configuration Program (Android Version)