
Off-the-Shelf VFD for Immediate Implementation
At Control Resources, we understand the need for reliable, ready-made Variable Frequency Drives that seamlessly integrate into your systems. Our off-the-shelf SmartFan Stratus II VFD is designed to control single-phase and three-phase fractional HP motors from a single-phase line. Motor speed is regulated based on control signal inputs; 0-10VDC, 4-20mA, transducer, potentiometer, or thermistor.
Key control settings for the SmartFan Stratus II VFD include:
- idle speed
- full speed
- motor off
- alarm trip points
These and other settings can be programmed using the SmartFan Navigator remote programmer or via MODBUS. Additionally, CRI can factory-customize your settings for orders as small as 50 units.
Custom VFD Design and Manufacture
As no single product can anticipate all customer needs, Control Resources specializes in combining customer-specified requirements with our existing technology to provide a custom product for the OEM client.
Such customization can include but is not limited to:
- Preprogrammed customer provided inputs for the Stratus II VFD
- Power Factor Correction
- Custom Control Inputs
- Custom Packaging
- Current ratings up to 8 Amps
Some of the custom Variable Frequency Drives we have done are shown below.
Additional Information
Other control technology:
• Control Resources also offers TRIAC based AC controls, EC motor controls and controls for DC motors.




