Description
The DC Motor Governor PWM Variable Speed Control Switch 6V-90V 15A controls the speed of a DC motor by adjusting Pulse-Width Modulation (PWM). This heavy-duty DC motor speed regulator is ideal for high-voltage applications, providing fine, reliable adjustment of motor speeds.
External 0-5V DC Control Instructions
To use an external control signal with this governor, follow these steps:
- Step 1: Disconnect/remove the onboard potentiometer from the circuit board.
- Step 2: Connect the 0–5V DC control signal wire to the middle pin marked “0-5V”.
- Step 3: Connect the earth/ground wire of your 0–5V DC control signal to the pin terminal marked “GND”.
Important Notes & Warnings
- Motor Type Restriction: This controller is strictly designed for brushed DC motors and cannot be used with brushless motors.
- Polarity Protection: Do not reverse the positive and negative terminals of the DC power supply input, as this will permanently damage the governor circuit.
- Direction Adjustment: If motor rotation is inconsistent with your expectations, simply reverse the motor line sequence order.
Key Features
- Wide Operating Voltage: Supports DC 6V to DC 90V input ranges with up to 1000W maximum controlled power.
- Smooth PWM Control: Enables seamless, stutter-free speed tuning from 0% to 100% duty cycle.
- PLC & External Integration: Supports PLC control loops and external 0–5V DC analog voltage control lines for automated setups.
- Low Standby Power: Features an ultra-low static standby current of just 0.005A.
Benefits
- High-Voltage Versatility: Eliminates the need for multiple regulators by bridging low-to-high DC voltage rails up to 90V.
- Automation Ready: Seamless compatibility with PLC systems allows remote speed adjustments in industrial machinery.
- Precise Torque Maintenance: Advanced PWM modulation ensures stable performance and high efficiency under varying loads.
Applications
- Industrial Ventilation & Exhaust Blowers: High-voltage speed governance for heavy commercial cooling fans, air handlers, and ventilation ducts.
- Automated Conveyor & Material Handling Lines: Precise speed control for commercial assembly belts, sorting tracks, and packaging transport rollers.
- Commercial Agitation & Mixing Vats: High-torque speed regulation for industrial fluid mixers, chemical stirrers, and processing vats.
- Specialized Automated Test Rigs & Jigs: Variable-speed DC motor testing benches and custom motorized laboratory equipment.
- Electric Utility Carts & Mobility Assemblies: Drive and traction speed control for custom workshop transport carts and battery-powered utility vehicles.
Package Includes
- 1 x DC Motor Speed Controller
- 1 x Potentiometer with connector cable
Specifications
| Parameter | Specification |
|---|---|
| Item Type / Series | High-Voltage PWM Speed Regulator / Motor Governor |
| Operating Voltage Range | DC 6V to 90V |
| Max Controlled Power | Up to 1000 W (0.01W – 1000W range) |
| Operating Current Rating | 8.0 A (Max Operating Current) |
| Maximum Peak Current | 15.0 A |
| Static Standby Current | 0.005 A |
| Speed Regulation Range | 0% to 100% PWM Duty Cycle (Stepless) |
| Control Compatibility | Rotary Potentiometer or External 0–5V DC / PLC Control Signal |
| Compatible Motor Types | Brushed DC Motors Only (Not for Brushless Motors) |
| Physical Form Factor | Compact Governor Board with Separate Potentiometer Module |




































