VSD – Variable Speed Drives

Variable speed drives for efficient, reliable motor control.

iEngineering provides complete Industrial Automation services around variable speed drives – from selection and supply through to testing, installation and commissioning of low- and medium-voltage drives. We support Siemens, Allen-Bradley, ABB and Schneider Electric portfolios across a wide range of industrial applications.

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Energy Savings Soft Starting Process Control LV & MV Drives Retrofit & New Build

Why variable speed drives?

Instead of running motors at constant full speed, variable speed drives regulate motor speed and torque. This improves process control, reduces energy consumption and extends equipment life.

  • Significant energy savings on pumps, fans, compressors and conveyors
  • Smoother starting and stopping, with reduced mechanical shock and noise
  • Improved control of flow, pressure, level and speed in your process

What a good VSD solution should deliver

  • Correctly sized drive and enclosure for your motor and environment
  • Compliance with site standards (IEC / NEMA) and utility requirements
  • Harmonic, EMC and motor insulation considerations engineered in
  • Easy integration with PLC, DCS and SCADA systems

VSD platforms we support

We work with leading VSD vendors to engineer, retrofit and support LV and MV drive systems across water, mining, manufacturing, HVAC, oil & gas and other process industries.

SIEMENS – SINAMICS

SINAMICS enclosed and modular drives

SINAMICS enclosed drives are based on Siemens’ Totally Integrated Automation concept, combining modular hardware with powerful software tools. We engineer SINAMICS solutions around your load profile, network and enclosure requirements (IEC or NEMA).

  • SINAMICS G120E – configurable enclosed LV drives in NEMA 1 or 12
  • SINAMICS G150 – air- or water-cooled enclosed drives (non-regenerative)
  • SINAMICS S120 CM – common DC bus systems and multi-motor line-ups
  • SINAMICS S150 – regenerative AC/AC drives for high-performance duties
Siemens SINAMICS variable speed drives
ALLEN-BRADLEY – PowerFlex

PowerFlex medium voltage drive systems

Allen-Bradley PowerFlex drives provide flexible, efficient control of medium-voltage motors in critical industrial applications. Systems can be supplied with arc-resistant ArcShield technology and regeneration.

  • PowerFlex 6000 – MV AC drives for 2.3–11 kV fans, pumps & compressors
  • PowerFlex 7000 – air- and liquid-cooled MV drives up to 34,000 HP
  • PowerFlex 7000 with ArcShield – arc-resistant MV drive system with full regeneration
Allen-Bradley PowerFlex medium voltage drives
ABB – ACS800 & ACS880

ABB all-compatible industrial drives

ABB’s ACS800 and ACS880 drives bring safety, reliability and flexibility to process industries and OEM applications. We support complete cabinet systems as well as drive modules for your own panel designs.

  • ACS800 single drives – proven wall-mounted and cabinet-built drives
  • ACS880 single drives & drive modules – all-compatible platform for new systems
  • ACS880 liquid-cooled drives – direct liquid cooling, 98% heat removal, fully enclosed
  • ACS880 flange-mounted drives – ACS880-01/-11/-31 and -04F/-04FXT for harsh environments
ABB ACS800 and ACS880 industrial drives
SCHNEIDER ELECTRIC – Altivar

Altivar Process & medium-voltage Altivar drives

Schneider Electric’s Altivar range is dedicated to process industries and utilities, combining energy-efficient motor control with embedded diagnostics and connectivity for EcoStruxure architectures.

  • Altivar Process ATV600 series – VSDs with embedded services from 0.75 kW to 1.5 MW
  • Altivar Process ATV900 series – high-performance drives up to 800 kW
  • Altivar 1200 – compact MV VSD systems from 315 to 16,200 kVA
  • Altivar 71 Plus & 61 Plus – heavy-duty and variable-torque LV drives up to 800 kW
Schneider Electric Altivar process and MV drives

Plan your next VSD project with iEngineering

Share your motors list, load details, voltage levels and site standards. We will recommend suitable drive brands and models and outline a practical implementation or retrofit plan aligned with your budget and operations.

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