DC 6-60V PWM Motor Speed Controller | Encoder Knob 1-100kHz

DC 6-60V PWM Motor Speed Controller with Encoder Knob

Take precise command of your brush motor projects with this versatile DC 6-60V PWM Motor Speed Controller. Featuring a high-precision digital encoder knob with a full 360° rotation range, this compact embedded module lets you dial in exact speed percentages, set custom frequency outputs from 1–100 kHz, and program slow start/stop ramps — all saved to memory when powered down. Whether you're building an automation system, a DIY conveyor, a fan controller, or a custom robotics project, this module delivers stable, repeatable performance in a compact 96 × 61 × 34 mm form factor.

Key Features

• Wide Voltage Range: Operates on DC 6V–60V input — match input voltage to your motor's rated voltage
• High Current Capacity: Output up to 30A peak; continuous operation rated within 20A
• Adjustable PWM Frequency: Set anywhere from 1 kHz to 100 kHz (default 15 kHz) for optimal motor compatibility
• Digital Encoder Knob: 360° rotation with short-press start/stop and long-press settings entry — no separate buttons needed
• Slow Start & Stop Control: Independently configure ramp-up and ramp-down times from 0–10 seconds
• Speed Limit Settings: Set lower speed limit (0–80%) and upper speed limit (0–100%) to protect your motor
• Acceleration / Deceleration Steps: Choose from 1%, 2%, 5%, 10%, 15%, 20%, or 25% per encoder revolution
• 0–100% Speed Display: Percentage-based digital readout for intuitive monitoring
• Power-Down Memory: All settings are retained after power is removed
• Embedded Panel Mount: Panel cutout of 92 × 56 mm for clean, professional installation
• Fence-Type Terminals: Secure screw-terminal wiring block for reliable connections
• Compatible Motor Type: Brush (brushed) DC motors only

Technical Specifications

Encoder Knob Operation Guide

• Short Press: Toggle motor start / stop
• Long Press (3 sec): Enter settings menu
• Clockwise Rotation: Increase value
• Counter-clockwise Rotation: Decrease value
• In Settings — Short Press: Cycle through Functions 1–6
• In Settings — Long Press (3 sec): Save and exit

Functions: F1 = Slow Start Time | F2 = Slow Stop Time | F3 = Lower Speed Limit | F4 = Upper Speed Limit | F5 = Accel/Decel Step | F6 = PWM Frequency

Important Wiring Notes

• Always observe correct polarity — input voltage must be divided into positive and negative terminals.
• Do NOT connect to 220V AC mains. This is a DC-only controller.
• Match input voltage to your motor's rated voltage (e.g., 12V motor → 12V input; 36V motor → 36V input).

Package Contents

• 1 × DC PWM Motor Speed Controller Module

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For general electrical safety guidance on DIY projects, refer to the U.S. Consumer Product Safety Commission — Electrical Safety Resources.

Frequently Asked Questions

Q: What type of motors is this DC PWM motor speed controller compatible with?

A: This controller is designed specifically for brushed (brush) DC motors. It is not compatible with brushless motors, stepper motors, or AC motors. Ensure your motor's rated voltage falls within the DC 6V–60V input range.

Q: Can I run this motor speed controller continuously at 30A?

A: The controller supports a peak output of up to 30A, but for continuous operation it is rated at 20A or less. For sustained high-current applications, ensure adequate heat dissipation and do not exceed the 20A continuous rating to maintain long-term reliability.

Q: Will my settings be lost if the power is cut?

A: No. This controller features power-down memory storage — all configured parameters (slow start/stop times, speed limits, frequency, acceleration steps) are saved to non-volatile memory and will be restored automatically when power is reapplied.

Q: How do I set the PWM frequency on this motor speed controller?

A: Long-press the encoder knob for 3 seconds to enter the settings menu, then short-press to cycle to Function 6. Rotate the knob clockwise to increase or counter-clockwise to decrease the frequency between 1 kHz and 100 kHz. Long-press again for 3 seconds to save and exit. The default frequency is 15 kHz.

Q: What are the panel cutout dimensions for embedded installation?

A: The required panel cutout is 92 mm × 56 mm (L × W). The full module dimensions are 96 mm × 61 mm × 34 mm, allowing the module to seat flush against the panel surface for a clean, professional finish.