ZK-MG PWM 5A 150W Motor Speed Control Switch Manual (5Vdc to 30Vdc) Panel Shape

DC5-30V 12V 24V 5A DC Motor Controller PWM Adjustable Speed Digital display encoder duty ratio frequency MAX 15A ZK-MG

A high-power PWM DC motor driver with an integrated soft-start, digital encoder, and adjustable frequency/duty cycle settings. It supports external control via a start/stop button and protects against reverse voltage.

Technical Specifications

• Voltage Input: DC 5–30 V (with reverse‑polarity protection)
• Rated Current: 5 A continuous
• Peak/Max Current: 15 A
• Maximum Power: 150 W
• Frequency Range: 1 kHz – 99 kHz (adjustable in 1 kHz steps); default 20 kHz
• Frequency Accuracy: ±1%
• Duty Cycle Range: 0% – 100% (adjustable in 1% increments)
• Operating Temperature: −40 °C to +85 °C
• Operating Humidity: 0% – 95% RH
• Dimensions: 79 × 43 × ~26–40 mm (varies by version)
• Weight: ~0.1 kg

Key Features

• Soft‑start to gradually ramp current, minimizing stress on motors
• Digital encoder knob with push for power ON/OFF
• Adjustable parameters: minimum/maximum duty cycle and PWM frequency
• Memory retention of settings after power-down
• Reverse voltage protection
• Includes an enclosure (“instrument case”) and reserved pads for external STOP button

Operation Modes

• Normal Mode:
  • Short press the encoder: toggle motor ON/OFF
  • Rotate clock/counterclockwise: increase/decrease duty cycle
• Parameter Setup Mode:
  • Long press encoder (>3 s) to enter setup
  • Short press to select parameter:
    • L: lower duty limit
    • H: upper duty limit
    • F: PWM frequency
  • Rotate to adjust values
  • Long press to save and exit setup
• External STOP Support:
  • Internal pad allows connection of an external 3.3 V/current‑sink STOP control

Ideal Applications

• DC motor speed control for small drives
• PWM-based lights, heaters, or signal generators
• Hobby, robotics, and industrial equipment