Simovert Masterdrive Frequency Converters

Siemens Simovert Masterdrive Frequency Converters

Siemens Masterdrive Repair, Servicing and Parts

We are suppliers of Siemens Micromaster – Masterdrive Sales and Repairs.

We stock AC drives and vector controllers from Siemen’s Masterdrive and Micromaster series, both new and refurbished at heavily discounted prices. We service and repair many drives that are now obsolete.

In addition we also supply many other Siemens Spare Parts.



Fans & Fuses

The two most common components to fail on a MASTERDRIVE are the cooling fan and fuses. The cooling fans eventually fail due to dust getting into the bearings of the fan. This is an easy repair that you can perform yourself if you keep a spare fan in stock. Fuses will undoubtedly fail from time to time with power fluctuations or surges.  Please contact us if you need help with these or any other replacement parts.


Capacitor Charge

All AC drives have large capacitors that are necessary to maintain the internal DC bus voltages. Under normal operating conditions, these capacitors have current continuously flowing through them that keep them charged. AC drives that are in storage or unpowered for periods exceeding 1-2 years begin to see these internal capacitors discharge voltage. When MASTERDRIVES have been unpowered for periods greater than 12 to 24 months, it is highly recommended to pre-charge the capacitors with a gradually-increased DC bus voltage. A drive that has been without power for more than 24 months and has not been precharged has the potential to damage its capacitors when full voltage is applied to the drive.

Drives include

  • 6SE AC Drives
    6SE7031, 6SE8615, 6SE6440
  • 6RA and 6RB DC Drives
    6RA24, 6RA70
  • 610, 611 and 650 Drives
  • ECO-Drive
  • SED 2 / SED2 / SED II Drives 
  • Relcon Drives
  • Midi Master / Midimaster
    6SE95, 6SE32, 6SEQ5, 6SE31
  • Micro Master / Micromaster
    6SE32, 420, 430, 440
  • Simoreg 6RA24, 6RA22, 6RA21 
    6RA2218, 6RA2425, 6RA2220, 6RA2175, 6RA2233, 6RA2277, 6RA2474, 6RA2475, 6RA2477
  • Simovert 6SE70
    6SE7033, 6SE7021, 6SE7027, 6SE7031, 6SE7032
  • Simodrive
    6SN1145, 6SN1145, 6SN1123
  • And More!  Call or contact us for quotes and options.
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