Adjustable Frequency Drives - Danfoss

Adjustable Frequency Drives (AFDs), also known as Variable Frequency Drives (VFDs), optimize motor performance by precisely controlling speed and torque, improving energy efficiency and extending equipment life. Co...

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Electric Motor Controls
Electric Motor Controls

Electronic motor control is vital for modern pump systems, enhancing efficiency and reliability by managing motor speed, torque, and direction. Utilizing variable frequency drives (VFDs) and programmable logic controllers (PLCs) helps optimize energy consumption, reduce mechanical wear, and improve system protection across various applications, including industrial processes, water treatment, and HVAC systems.


How does a variable frequency drive (VFD) work in pump control?

A variable frequency drive (VFD) controls a pump by adjusting the motor's speed and torque to match what's needed. It takes the incoming AC power, converts it to DC, and then back to AC at the right frequency and voltage. By changing the frequency, the VFD can adjust the motor speed, and by controlling the voltage, it keeps the torque just right. This precise control helps improve energy efficiency, reduces wear and tear on the system, and keeps everything running smoothly.


How does programmable logic controllers (PLCs) play in pump motor control?

Programmable logic controllers (PLCs) are key to pump motor control because they automate and monitor the system. They can start and stop the pump, adjust the motor speed, and respond to different inputs and conditions. PLCs also detect faults, schedule operations, and optimize processes to ensure everything runs smoothly and efficiently. Their ability to handle complex control tasks makes them essential for keeping pump systems reliable and efficient.


Do you have questions regarding electronic motor control products for pumps?

Contact us to speak with a product expert to help you from product selection to answering questions about installation.

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Danfoss - 135U2919
MPN:FC-202N500T7E20H2XGCXXXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$68,899.56$75,910.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U2920
MPN:FC-202N560T7E20H2XGCXXXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$82,540.60$90,939.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U2921
MPN:FC-202N630T7E20H2XGCXXXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$95,779.56$105,525.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3564
MPN:FC-202N560T4E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$99,126.05$109,212.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3823
MPN:FC-202N560T4E20H2XGCXXXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$84,051.84$92,604.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3825
MPN:FC-202N355T4E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$58,416.23$64,360.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3826
MPN:FC-202N450T4E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$75,139.64$82,785.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3827
MPN:FC-202N450T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$66,361.78$73,114.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3828
MPN:FC-202N500T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$79,758.66$87,874.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3831
MPN:FC-202N500T4E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$89,208.18$98,285.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3832
MPN:FC-202N560T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$94,025.98$103,593.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3833
MPN:FC-202N630T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$108,288.76$119,307.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3834
MPN:FC-202N710T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$119,964.74$132,171.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3835
MPN:FC-202N800T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$144,173.53$158,843.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3836
MPN:FC-302N315T5E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$44,822.38$49,383.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3837
MPN:FC-302N355T5E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$48,680.79$53,634.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3838
MPN:FC-302N355T7E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$58,799.25$64,782.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3839
MPN:FC-302N400T7E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$75,361.11$83,029.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3841
MPN:FC-302N450T5E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$68,416.69$75,378.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3843
MPN:FC-302N560T7E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$109,005.80$120,097.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3845
MPN:FC-302N710T7E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.
Requires Quote
Available for Purchase

Subject to factory lead times

Danfoss - 135U3848
MPN:FC-302N560T7E54H2BGC3XXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$123,805.91$136,403.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3849
MPN:FC-302N500T7E54H2BGC3XXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$110,493.44$121,736.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3850
MPN:FC-302N500T5E54H2BGC3XXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$98,627.75$108,663.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U2919
MPN:FC-202N500T7E20H2XGCXXXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$68,899.56$75,910.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U2920
MPN:FC-202N560T7E20H2XGCXXXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$82,540.60$90,939.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U2921
MPN:FC-202N630T7E20H2XGCXXXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$95,779.56$105,525.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3564
MPN:FC-202N560T4E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$99,126.05$109,212.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3823
MPN:FC-202N560T4E20H2XGCXXXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$84,051.84$92,604.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3825
MPN:FC-202N355T4E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$58,416.23$64,360.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3826
MPN:FC-202N450T4E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$75,139.64$82,785.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3827
MPN:FC-202N450T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$66,361.78$73,114.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3828
MPN:FC-202N500T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$79,758.66$87,874.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3831
MPN:FC-202N500T4E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$89,208.18$98,285.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3832
MPN:FC-202N560T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$94,025.98$103,593.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3833
MPN:FC-202N630T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$108,288.76$119,307.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3834
MPN:FC-202N710T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$119,964.74$132,171.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3835
MPN:FC-202N800T7E54H2XGC3XXSXXXXAXBXCXXXXDX
Danfoss VLT® AQUA Drive is dedicated to water and wastewater applications. With a wide range of powerful standard and optional features, the VLT® AQUA Drive provides the lowest overall cost of ownership for water and wastewater applications.

$144,173.53$158,843.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3836
MPN:FC-302N315T5E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$44,822.38$49,383.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3837
MPN:FC-302N355T5E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$48,680.79$53,634.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3838
MPN:FC-302N355T7E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$58,799.25$64,782.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3839
MPN:FC-302N400T7E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$75,361.11$83,029.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3841
MPN:FC-302N450T5E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$68,416.69$75,378.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3843
MPN:FC-302N560T7E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$109,005.80$120,097.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3845
MPN:FC-302N710T7E20H2BGCXXXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.
Requires Quote
Available for Purchase

Subject to factory lead times

Danfoss - 135U3848
MPN:FC-302N560T7E54H2BGC3XXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$123,805.91$136,403.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3849
MPN:FC-302N500T7E54H2BGC3XXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$110,493.44$121,736.00

You save 9%
Available for Purchase

Subject to factory lead times

Danfoss - 135U3850
MPN:FC-302N500T5E54H2BGC3XXSXXXXAXBXCXXXXDX
The VLT® AutomationDrive represents a single drive concept that controls the entire range of operations from ordinary to servo like applications on any machine or production line.

$98,627.75$108,663.00

You save 9%
Available for Purchase

Subject to factory lead times