Card image

Variable Frequency Drives

Productivity powered by innovation

Worldwide Electric,Motor Coupling,across line starters,reduced voltage starters,high efficiency motors,
PLC,PLCs,Programmable Logic Controller,Programmable Logic Controllers,CPU,CPUs,industrial control platform,control platform,Input Output,input/output,I/O,I/Os,
embedded computer,industrial computer,manufacturing computer,advantech,industrial computing,embedded PC,Industrial PC,manufacturing PC,embedded industrial computers,embedded industrial PC,
Mitsubishi Electric Automation,MEAU,HMI,Human Machine Interface,MMI,Man Machine Interface,User Interface,UI,GUI,Graphical User Inerface,Computer Screen,Industrial Computing,Industrial Computer.
Mitsubishi Electric Automation,MEAU,Apex Dynamics,Servo-Actuator,Servo,Servo Motor,Servo Controller,Servo Systems,
integrated stepper motors,linear stepper motors,rotary stepper motors,stepper motors,stepper motor encoders,torque motors,two-phase stepper,hybrid stepper motors,servo motors,can-stack stepper motors,permanent magnet stepper motors,
nabtesco,cycloidal gearbox,planetary gearbox,gear boxes,gear boxes,cycloidal,reduction gears,gear heads,servo-actuators,hollow shaft gear heads,
industrial training,programming classes,vision classes,industrial seminar,EIT training,continuing education engineers,
Programmable Logic Controllers,PLC,PLCs,Variable Speed Drives,Inverters,Inverter Drives,VFD,VFDs,VSD,VSDs,Servo Motor,Servo Motors,Servo Controller,Servo Controllers,
Machine automation,machine upgrade,machine retrofit,machine refurbish,machine rebuild,machine software integration,part identification integration,


Variable Frequency Drive InvertersVariable Frequency Drives, or VFDs, are used to control AC motors in many applications such as fans, conveyors, pumps, and elevators. The VFD can be used to control the speed of the motor, the amount of torque a motor produces, and to reduce electrical costs on motors that are not fully loaded.


VFDs are also known as variable speed drives, converters/inverters, AC drives, and micro drives. They are all the same thing. The drive is used to change the frequency and voltage that is being fed to the AC motor. By altering the frequency and voltage, the VFD allows the AC motor to be controlled from a speed of 0 RPM all the way up to multiple times the base speed of the motor.In Full Vector Control Torque Mode, a VFD can control the amount of torque an AC motor produces, even when standing still at 0 RPM. This can be very useful in applications where tension control is needed, such as in web handling. Winders, Unwinders, and Tension rolls take advantage of Torque Control all of the time.

AC Drives

Torque Control can also be used to cascade multiple VFDs together to share a common load. Long conveyor lines can take advantage of multiple motors automatically sharing the load.Adding a VFD to a pump or fan motor that is not running at full load is a great way to reduce energy consumption. ROI is typically pretty short for these types of applications.

Adding a VFD to a motor is a great way to add flexibility to existing equipment by allowing easy speed changes, smoother starts and stops, and even energy savings.

HTE Automation sells VFD Inverters in Kansas, Missouri, and Illinois.
For more information please contact Customer Service at 800.444.4831 or by email at
Line Cards
HTE Automation.pdf