• Red electronic module with wiring harness on a white background, featuring SIAECOSYS logo.
  • Red electronic device with SIAECOSYS logo on a white background
  • Red electronic component with Siaecosys logo on a white background
  • Metal component with 'SIAECOSYS' branding on a white background
  • Technical drawing of a mechanical component with dimensions and details
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Charge My E-Bike

FarDriver SIAYQ7235 72V 35A DC

FarDriver SIAYQ7235 72V 35A DC

$174.89 USD
$74.89 USD $174.89 USD
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SiAECOSYS / FarDriver SIAYQ7235 Programmable Sine Wave Controller –

72V Rated Voltage, 35A Continuous DC / 180A Phase Current Protection, Self-Learning Function for BLDC Motors

Upgrade your light electric scooter, e-bike, or commuter conversion with the compact FarDriver SIAYQ7235 Sine Wave Controller.

 Developed in partnership with SiAECOSYS, this Field-Oriented Control (FOC) vector controller provides smooth, whisper-quiet motor operation, high thermal efficiency, and linear throttle progression for brushless DC (BLDC) hub and mid-drive motors.

Rated at 72V DC with a 35A continuous battery current capacity and 180A phase current protection, the SIAYQ7235 is perfectly suited for daily commuters, lightweight electric conversions, and QS Motor builds. Featuring an automated self-learning function, the controller quickly calibrates phase angles and Hall sensor sequences for hassle-free motor matching.

⚠️ Commissioning & Setup Requirements

IMPORTANT INITIAL SETUP PROCEDURE:

  • Mandatory Self-Learning: Upon initial wiring hookup to your BLDC motor, you must run the automated self-learning process via software before driving to match motor phase/Hall angles.

  • Motor Compatibility: Optimized out-of-the-box for QS Motors. Third-party or custom motors may require parameter tuning during setup.

  • Tuning Connectivity Options: Choose between Combo 1 (USB Cable) for PC-based parameter tuning or Combo 2 (Bluetooth Module) for wireless tuning via the smartphone app.

🚀 Key High-Performance Features

  • Precision FOC Sine Wave Output: Eliminates harsh square-wave motor noise and vibration for a smooth, silent ride.

  • Built-In Self-Learning Algorithm: Automatically identifies motor phase direction and Hall sensor signals during installation.

  • 180A Phase Current Protection: Guards your motor and internal MOSFETs against high-load phase over-current spikes.

  • Compact Die-Cast Aluminum Body: Compact footprint (150mm x 130mm x 80mm) with an integrated aluminum heatsink frame for optimal heat management.

  • Programmable Parameter Suite: Adjust throttle curves, voltage cutoffs, speed limits, and regen braking intensity.

📊 Technical Specifications Matrix

Specification Parameter FarDriver SIAYQ7235 Specifications
Brand / Manufacturer FarDriver / SiAECOSYS
Model Series SIAYQ7235
Rated Voltage 72V DC Nominal
Rated DC Battery Current 35A Continuous
Protected Phase Current 180A Peak Phase
Control Type Sine Wave FOC (Brushless DC)
Enclosure Material Heavy-Duty Aluminum Heatsink Casing
Dimensions 150 mm (L) × 130 mm (W) × 80 mm (H)
Net Weight 1.0 kg
Placement on Vehicle Rear Enclosure / Frame Mount
Tuning Method USB Cable (Combo 1) or Bluetooth Dongle (Combo 2)

⚙️ Installation & Programming Checklist

  1. Wiring Connection: Connect the main battery leads, 3-phase motor lines, Hall sensor harness, 0–5V throttle, and ignition key wire.

  2. Execute Self-Learning: Connect your USB cable or Bluetooth module, open the FarDriver tuning software, and initiate self-learning mode while keeping the drive wheel suspended off the ground.

  3. Save Parameters: Once motor calibration completes smoothly, confirm throttle limits and save your settings.

📦 Available Purchase Combos

  • Combo 1 (PC Tuning Kit):

    • 1 x FarDriver SIAYQ7235 72V Controller

    • 1 x PC USB Programming Cable

  • Combo 2 (Wireless Mobile Kit):

    • 1 x FarDriver SIAYQ7235 72V Controller

    • 1 x Wireless Bluetooth Debugging Module

Enjoy whisper-quiet sine wave power and easy self-learning setup. Choose your tuning kit option below, click Add to Cart, and start your build today!

Key Features

1). All the raw materials are imported, using a high-performance Moss tube

2). With the aluminum substrate scheme, the Moss tube is laid on the aluminum substrate and then placed on the PCB board

3). Small in size

4). High efficiency, low temperature rise, small running current

5). With self-learning function, excellent commonality

6). With flux weakening function. (The product does not contain magnetism)


Product Description

SIAYQ7235 is a high-quality controller with stable performance, which is compact and supports Bluetooth for the app.

It’s a hall version (by default), which suits hall motors.



 




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