+44 (0)1462 671001

Power Inverter Repairs (Servo Drives)

Drive and Inverter Repairs

When your servo or variable speed drive fails, our inverter repair service can reinstate your process promptly. Many of our clients wish to either keep the same unit footprint or retain factory uniformity. The IER solution offers a reliable, cost-effective repair alternative to replacing the drive or power inverter.

Our highly skilled team of inverter engineers will diagnose the fault areas and repair or replace the faulty components for your your Inverter, DC Drive, Stepper Drive or Servo Drive Additionally all required preventative maintenance is made. These Drives are then tested whenever possible, before being returned.

IER have a team of professional electronic engineers, who are experienced in repairing all types of inverter manufacturers, including:

  • Siemens
  • Fanuc
  • Control Techniques
  • ABB
  • Danfoss
  • Allen Bradley
  • IMO Jaguar
  • Mitsubishi
  • Toshiba
  • Hitachi
  • Omron
  • Kone
  • Schindler
  • Vacon
  • Indramat & many more

For a FREE scheduled collection and a FREE quote for inverter repairs, call our Customer Service Centre on: +44 (0)1462 671001 and we will be glad to help.

A Guide to Inverters & Variable Speed Drives


An inverter is an electronic device that changes a DC direct current, to an AC alternating current. It does not generate the power, this is supplied by the DC source. Power from the electrical supply goes into the inverter or drive, which then regulates the power that is fed to the motor. The input power in the drive is then passed through a rectifier that converts incoming AC power to DC power.


The input & output voltage, power handling and frequency depend on the device's design. A power inverter is normally entirely electronic, but can be a a combination of mechanical components and electronics.


A servo drive unit provides power to electric servomechanisms. This monitors the feedback signal from a servomechanism, recognising any changes differing from the expected results. These units are typically used on factory floors. An inverter is an electrical conversion unit that changes Direct Current to Alternating Current. This allows information processed to be converted from one format into another. Modern power units are comprised of oscillator circuits, which use semiconductors & transistors to alternate a current type.


If the drive or inverter unit fails for any reason, IER offer professional repair for inverters to reinstate your device as swiftly as possible.