DC 6–60V PWM Motor Speed Controller | Encoder Knob 0–30A

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

Take full command of your brush motor projects with this versatile DC 6–60V PWM Motor Speed Controller. Featuring a precision digital encoder knob, adjustable PWM frequency (1–100 kHz), programmable slow start/stop ramps, and upper/lower speed limits, this compact embedded module is the ultimate control solution for DIY electronics, automation builds, and maker projects.

Key Features

• Wide voltage range: DC 6V–60V input; works with virtually any brush DC motor within that range
• High output current: 0–30A peak, 20A continuous — handles demanding motors with ease
• Adjustable PWM frequency: 1–100 kHz fully programmable (default 15 kHz)
• Encoder knob control: 360° rotation for smooth, precise speed adjustment (0–100%)
• Start/Stop function: Single short press on the knob starts or stops the motor
• Programmable slow start & stop: Ramp time adjustable 0–10 seconds to protect motors and loads
• Upper & lower speed limits: Set a minimum (0–80%) and maximum (0–100%) operating speed
• Acceleration/Deceleration steps: Choose from 1%, 2%, 5%, 10%, 15%, 20%, or 25% per knob revolution
• Power-down memory: All settings are saved automatically — no re-programming after power cycles
• Digital speed display: 0–100% percentage readout on the integrated panel
• Embedded panel mount design: Panel cutout 92 mm × 56 mm for clean, professional installations

Technical Specifications

Encoder Knob Operation Guide

• Short press: Toggle motor start / stop
• Long press (3 sec): Enter settings interface
• 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

• Input voltage must match the rated voltage of your motor (e.g., 12V motor → 12V input; 36V motor → 36V input).
• Always observe correct positive/negative polarity on the input terminals.
• Do NOT connect to 220V AC mains. This is a DC-only device.

Package Contents

• 1× DC 6–60V PWM Motor Speed Controller Module

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For guidance on electrical safety in DIY and maker projects, visit the U.S. Consumer Product Safety Commission (CPSC) for best practices when working with DC electrical components.

Frequently Asked Questions

Q: What types of motors are compatible with this PWM motor speed controller?

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

Q: Can I use this controller at its maximum 30A output continuously?

A: The module supports up to 30A peak output, but the recommended continuous current is 20A or less. For sustained high-current applications, ensure adequate heat dissipation (e.g., mounting to a heat sink or enclosure with airflow) to maintain reliable long-term performance.

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

A: No. This controller features power-down memory storage. All programmed settings — including frequency, speed limits, and slow start/stop times — are saved automatically and restored on the next power-up.

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 interface. Short press to cycle to Function 6 (frequency setting), then rotate the knob to select a value between 1 kHz and 100 kHz. Long press again for 3 seconds to save and exit. The default frequency is 15 kHz.

Q: What is the panel cutout size for embedded installation?

A: The required panel cutout for flush embedded installation is 92 mm × 56 mm. The overall module dimensions are 96 mm × 61 mm × 34 mm (L × W × H).