Blower applications
Variable speed can control airflow or pressure. Selection should consider motor current, fan curve, control feedback and minimum operating speed.
VFD Application Engineering
VFD for Blower
Blower speed and process airflow control with VFDs.
VFD Selection Considerations
Motor Data
Confirm motor kW or HP, rated current, rated voltage, frequency, RPM and motor type.
Load Requirement
Determine whether the application requires variable torque, constant torque, high starting torque or heavy-duty overload capacity.
Speed Range
Define minimum and maximum operating speed, acceleration time and deceleration requirements.
Control Method
Identify whether control is keypad based, analog, digital, PLC, Modbus, Ethernet or process-feedback based.
Environment
Consider ambient temperature, dust, moisture, altitude, enclosure rating and installation location.
Protection
Review overload, short circuit, phase loss, overvoltage, undervoltage, motor protection and emergency requirements.
Information Required for VFD Selection
✓ Motor kW / HP
✓ Motor rated current
✓ Supply voltage
✓ Motor RPM
✓ Machine or process type
✓ Required speed range
✓ Starting torque
✓ Acceleration time
✓ Braking requirement
✓ PLC / BMS integration
✓ Communication protocol
✓ Environmental conditions
APPLICATION SUPPORT
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Share your motor data, machine type, load requirement and process details. Our technical team can help recommend the appropriate VFD.