Whenever there is a need of adjusting the speed of an electric motor, a HVAC devices are widely used:

  • soft-starts that allows a smooth running in of an electric motor to the rated speed, preventing a high surge currents, thus reducing the instantaneous power consumption and stress to the mechanical machines of high inertia
  • inverters - called often a frequency converters - that allow a running in the motors  within a wide range of a speed, while maintaining a high torque
  • servodrives constituting a set of frequency converter (inverter) driving the electric motor and a position reading device of a motor spindle (encoder, resolver). Servo drives are widely used in the machinery, wherever there is a need of determining the position of a mechanism controlled by an electric motor. A classic example here would be the CNC machines.



Servo drives, inverters, and soft starters are being utilized in almost every modern industrial machine, therefore quite often they require a diagnose or repair. Our daily contact with such a devices over the years  has made known to us the issues not only with the selection and operations of inverters and drives,  but also their internal, electronic structure, that lets us do a quick and effective repairs.

We offer services related to:

  • selection, configuration and programming of settings into inverters for specific solutions (model replacement, modernization - including a software migration of PLC application)
  • diagnostics and repair of servomotors, inverters, soft-starts, etc.
  • customs designs of electronic solutions for a machine drives

We service all brands equipment: ABB, Allen Bradley, Apator Control, Baumüller, Berger Lahr Berges, Bonfiglioli, Control Techniques, Danfoss, Delta, Divnerter (Emerson), Elau, Fanuc, Fuji Electric, Gefran, GE Power Protection, Hitachi, Indramat, Invertek, KEB, Lenze, LG Industrial Systems, Lust, MAXAX, Mitsubishi, Moeller (Eaton), Nord,  Omron, Rockwell Automation, Schindler, Schneider electric, SEW Eurodrive, Siemens, Sinumerik, Simodrive, Stöber, Telemecanique, Toshiba, Toyo Denki, Vacon, Watt Drive, Yaskawa, and other, also untypical.

For many years our workshop conducts a diagnostic and repairs of many different configurations of these devices:

  • softstart
  • DC motor inverters  (for a perma-magnet motors or with the exciters circuit)
  • AC inverters (ring & squirrel cage motors)
  • single and multiphase inverters
  • stepper motor drives
  • servo drives of numerical machines

We invite You to use our services!

Repair Your Dinverter Control Techniques inverter in a professional workshop for industrial automation. Get one year service warranty.

Modern, microprocessor controlled inverters are equipped with extensive mechanisms of self-diagnosis. These diagnostic systems:

  • check the correct operation of a functional blocks inside the inverter
  • supervise in a real time conditions the operating parameters (power supply, inverter & converter circuits, load, etc) to ensure the inverter is operating in a safe operation area

In case of a faulty operation of the inverter, very often an alarm is raised on an operator's panel with an error code. That provides an information leading to possible causes of a fault. The following table summarizes the error codes for Danfoss inverters:

SIEMENS MICROMASTER, SINAMICS inverters are widely used in industrial automations. Our service is offering a diagnostic and repair services.

ABB Inverters, through extensive configuration options are commonly used in drives of machines. Our workshop performs diagnostics, and repair of inverters from this company.

Our workshop provides comprehensive diagnostic services of Danfoss inverters. We diagnose:

- converter & inverter modules

- peripheral (optional) devices

- configuration & settings