DC Motorized Impellers
DC Motorized Impellers
Mechatronics DC Backward Curved Motorized Impellers offer exceptional airflow and pressure performance with a variety of voltage, speed control, alarm output, and environmental protection options. Please contact Mechatronics for assistance with your engineering requirements. We are available to assist with development of the right thermal management solutions to meet your needs.
DC Motorized Impellers General Specifications*
- Frame Construction: Aluminum die cast motor base
- Impeller Construction: Nylon or metal
- Motor Construction: Brushless DC Motor
- Bearings: High precision chrome steel ball bearings
- Motor Insulation: Class A (unless otherwise noted)
- Voltage Options: 12VDC, 24VDC, and 48 VDC
- Motor Protection: Soft Start, Locked Rotor Protection, Auto Restart, Reverse Polarity Protection
- Operating temperature range: -10 ~ 70 °C
Connection Reference
DC Motorized Impeller Options
Mechatronics DC Motorized Impellers come with speed control and performance monitoring options.
Tachometer Output Signal: The tachometer output signal can be used to monitor fan performance. The signal is a 2 pulse per revolution square wave output for 4 pole motors, 4 pulse per revolution for 8 pole motors and 3 pulse per revolution for 9 pole motors.
The tachometer output signal is open collector type and requires a pull up resistor in customer application as the signal does not have driven output voltage.
The tachometer wire does not need to be connected for the impeller to operate.
Tachometer Wiring Diagram:
Speed Control
Mechatronics DC Motorized Impellers are available with speed control via Pulse Width Modulation (PWM) or Voltage Control (0-10VDC).
0-10VDC Speed Control:
- Impeller speed is 0 RPM when control wire input is 0VDC.
- Impeller operates at minimum speed when control wire input is 1VDC.
- Impeller operates at full speed when control wire input is 10VDC.
- To operate the impeller without speed control input, connect control wire and red wire together to rated motor input voltage. Impeller will operate at 100% RPM.
Pulse Width Modulation (PWM) Speed Control:
You can control the motor speed using PWM input to the speed control input of the impeller. Motor speed can be varied by changing the PWM duty cycle from 0% to 100%. Suggested PWM frequency is 25kHz +/- 5kHz.
DC Impeller Mounting Options
Standard motorized impeller integration requires an inlet ring to block the exhaust air from re-entering the air intake. For optimal performance, the inlet ring must be mounted to an adjacent surface aligning it with the impeller intake. |