F/R 12V 100W 150W DC Motor PWM Speed Control

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Product Description

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Overview & Basic Information

Model NO.:DC24/20BL-4Q02A
Signal:Continuous
Function:Automatic Control, Protection
Certification:ISO: 9001, CE
Material:PCB
Volt:DC12V
Current:30A
Working Mode:Speed Mode
Protection Level:IP 20
Warranty:1 Year
Specification:112*76*33 mm
Origin:China
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Product Characteristics

DC Motor PWM Speed Control

This series of speed controller is a low voltage DC four-quadrant regeneration pulse width controller adopts special single-chip intelligent control system and has rapid response speed, steady operation, reliable work status and multiple protection functions.

  • SMT technology, small size
  • Pulse width modulation (PWM) for low noise and high efficiency
  • Four-quadrant regenerative operating mode
  • Regenerative braking function (no external reversing contactor needed)
  • Enable/reversing terminal for passive switching or transistor collector
  • Status indicator lights for power and over-current alarms
  • Output current setting (amplitude limiting)
  • Torque compensate function
  • Double closed-loop PI regulation (current, voltage)
  • Standard analog signal control (0-6V, 0-10V or potentiometer)
  • Input voltage range: 20-55V
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Performance Indexes

Speed ratio1:100
Control potentiometer(1K ...50K )/2W
Input voltage20-55V VDC
Output current0-20A (amplitude limiting)
Input impedance≥50KΩ
Starting/braking time1-20 S
Environment temperature-10ºC ~ +50ºC
Insulation resistance> 20 MΩ
Weight0.25Kg
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Technical Parameters

Mode Max. Output Current (A) Max Output Voltage (V) DC Voltage Working Range (V)
DC24/20BL-4Q02 20 22.8 20-55
DC36/20BL-4Q02 20 34.6 20-55
DC48/20BL-4Q02 20 46.5 20-55
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Drawing & Detailed Photos

Technical Drawing

Product Drawing

Detailed Photos

Detailed View 1 Detailed View 2
Detailed View 3 Detailed View 4
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Related Products & Certifications

Related Products
Certifications
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Service Support

Service 1 Service 2
Pre-service After Sales Service
• Inquiry and Consult Support
• Sample testing Support
• Factory Viewing
• Installation and usage guidance
• 24 hours online problem solving
Packaging

Frequently Asked Questions

What types of motors is this controller compatible with?
It is applicable for tombarthite, permanent magnet, and separately excited DC motors.
Does this controller support speed control via potentiometer?
Yes, it can be controlled by a standard analog quantity signal (0-6V or 0-10V) or via a 1K to 50K potentiometer.
What is the advantage of the four-quadrant regenerative mode?
It allows for efficient regenerative braking and motor control in both directions without needing external reversing contactors, preventing components from overheating.
What are the protection features of this device?
The controller includes over-current alarm indicators, amplitude limiting for output current, and double closed-loop PI regulation for both voltage and current.
Is the controller suitable for industrial environments?
Yes, it has an IP 20 protection level and operates reliably in temperatures ranging from -10ºC to +50ºC with up to 80% relative humidity.

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