Custom Variable Frequency Drive Design for 3-phase 1/2 HP Cabinet Blower Control
The challenge of this custom variable frequency drive design was to maintain constant airflow by changing motor speed as the filter changed from “no load” to “100% load”. The custom VFD design had to fit into an existing control panel with a height limitation of under 2.5 inches. Fast start-up (<5 seconds) and intelligent setpoint return are some of the programmed features of this unique custom VFD design.
CRI’s electronic design and manufacturing facilities have the capability to provide complete custom variable frequency drive design for AC motors, fans, and pump applications from prototype to production.
Custom Variable Frequency Drive Design Specifications
- Input power : 115 or 230 VAC, 50/60 Hz, single-phase
- Output power: 230 VAC, 3-phase, 3 Amps
- Frequency and motor RPM determined by load affect on motor current
- Constant airflow maintained as the filter loads
- Adjustable for multiple cabinet sizes
- Low profile (< 2.5″ H) custom design to fit into existing panel
- UL508 certification
Custom VFD Design – Cabinet Blower Control
SmartFan® Design Group