QSKBS72121X

It’s special design for QS BLDC motor controller for Conversion Kits, which can match with QS hub motor rated power 1500W.

Key Features

1) Very easy to connect.
2) Can match with almost any brushless DC motor.
3) Soft start can be adjusted.
4) Programmable by USB and Bluetooth.
5) Quality Guarantee. (generally, no after-sale issue)

Product Information

QSKBS72121X Brushless DC Controller

Specification

• Square wave controller, programmable, with regen function
• Motor Current Limit, 20 seconds: 130A
• Motor Current Limit, continuous: 55A
• Thermic Probe: KTY83-122
• Including one controller + USB convertor cable + matched plug
• Controller size:  108mm*78mm*41mm
• Net weight: 1.0kg
• Waterproof IP54
• Default not including Bluetooth, waterproof (those functions are optional); not support CAN-BUS

Drawing of Controller

QSKBS-X controller: 108mm*78mm*41mm

Kelly Controller Software Interface

Kelly Controller Pin Definition

DJ7091Y-2.3-11 Pin Definition

(14) REV_SW: Reverse switch input. Orange
(6) RTN: Signal return or power supply return. Black
(12) FWD: Forward switch. White
(11) 12V: 12V Source. Red
(9) Relay: Main contactor driver. Blue
(7) PWR: Controller power supply (input). Pink
(25) 12V brake switch. Yellowish

DJ7091Y-2.3-21 Pin Definition

(15) Micro_SW: Throttle switch input. Gray
(3) Throttle: Throttle analog input, 0-5V. Green
(1) Temp: Motor temperature sensor input. Raddle
(20) RTN: Signal return. Black
(8) Meter: Copy signal of hall sensors. Dark Gray
(4) 5V: 5V supply output, <40mA. Purple
(2) Brake_AN: Brake variable regen or Boost function. Brown

DJ7061Y-2.3-21 Pin Definition

(21) RTN: Signal return. Black
(5) 5V: 5V supply output, <40mA. Purple
(18) Hall A: Hall phase A. Yellow
(17) Hall B: Hall phase B. Dark Green
(16) Hall C: Hall phase C. Dark Blue

Notes

1. All RTN pins are internally connected.
2. Meter function is to copy either of hall sensors.
3. Switch to 12V is active. Open switch is inactive.
4. The controller can communicate with the phone app.