A photo of a large modern variable speed drive (VSD)

Inverters (VSD)

Variable Speed Drives (VSD) that manage the frequency and voltage supplied to electric motors. They allow for precise speed control, significantly reducing energy consumption and mechanical wear

Siemens | SINAMICS Drive Family

Siemens SINAMICS drives are the gold standard for high-efficiency energy management. From simple pump/fan control to high-dynamic servo applications, they offer a unified engineering approach through the TIA Portal and excellent “Safe Torque Off” (STO) integration.

SINAMICS V20

Model Number: 6SL32105BE215UV0

Compact “Push-through” mounting; integrated USS and Modbus RTU ports; 0.12 to 30 kW.

Key Technical Specifications:

  • Automatically adapts the motor flux to the current load for maximum energy savings at steady speeds.

  • Automatically adjusts to unstable line supplies to prevent unnecessary trip-outs and downtime.

  • Supports a battery-operated parameter loader for fast commissioning of multiple identical drives without power.

SINAMICS G120

Model Number: 6SL32440BB121FA0

Modular design (Power Module + Control Unit); high-level safety (SIL 3); up to 250 kW.

Key Technical Specifications:

  • Optional modules allow energy generated during braking to be fed back into the grid rather than wasted as heat.

  • Comprehensive safe stop functions (STO, SS1, SLS) built directly into the control unit.

  • Ability to swap the Control Unit (CU) or Power Module (PM) independently for faster field maintenance.

Allen-Bradley | PowerFlex® Drive Family

Allen-Bradley PowerFlex drives are renowned for “Premier Integration” within the Rockwell environment. They provide a seamless flow of real-time diagnostic data to Logix controllers, making them a top choice for North American facilities focusing on predictive maintenance.

PowerFlex 525

Model Number: 25B-D4P0N104

Modular design; embedded EtherNet/IP; permanent magnet motor control; up to 30 HP.

Key Technical Specifications:

  • Allows the drive to be programmed via USB without applying high-voltage power to the unit.

  • “Zero-stacking” allows drives to be mounted side-by-side to save critical cabinet space.

  • Out-of-the-box control for high-efficiency PM motors to reduce operational energy costs.

PowerFlex 755

Model Number: 20G11ND014AA0NNNNN

Advanced diagnostics; support for up to 2000 HP; integrated motion control over EtherNet/IP.

Key Technical Specifications:

  • Provides precise, adaptive control of torque, velocity, and position for high-demand loads.

  • Monitors fan life and relay cycles to alert procurement teams before a component fails.

  • Five slots for I/O, feedback, and communication cards to customize the drive for any sourcing spec.

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