Variators

07/07/2014



New ESV motoinverter

 


NEW ESV VIDEO

Several years after the first introduction of the electronic speed variator "ESV", S.T.M. SpA has turned it up in a real motorinverter, very easy to interface.

The control algorithm is a high speed precision sensorless vector, with brilliant torque performances, which assure the best starting efficiency. It is also available a true closedloop vector drive that supports encoder feedback.

The high reliability has been our first goal:

  • Absence of electrolytic capacitor
  • Designed to last 40000 hours
  • Wide voltage range alimentation 3F-230V, 3F-480 V, 3F-480V to 50-60HZ
  • Long lasting power ondulation
  • Environment temperature from -25°C up to +50°C

S.T.M. SpA has also assured high quality electric standars:

  • CE and UL certification
  • ATEX Z22 certification
  • EMC certification, EN61800-3 rule, class 2
  • Low voltage loss filter 3,5mA, which is compatible with B differential
  • PLC BUS: PROFIBUS, CAN-OPEN, ETHERCAT, MODBUS (RS-485)

Our "ESV" has an easy interface with PLC control systems or with microprocessor controls:

  • 5 DIGITAL INPUTS
  • 4 DIGITAL OUTPUTS (2 RELE OUTPUTS)
  • 2 ANALOGIC INPUTS
  • 1 ANALOGIC OUTPUT 0-10VOLTS or 0-20mA

In addition it is possible to configure our "ESV" very easily:

  • Potentiometer on board
  • 0-10V or 0-20mA signal
  • MMI external keyboard
  • Field bus serial line
  • PC with monitor software and programming (oscilloscope and data logger)
  • Maximum frequency regulation 400HZ
If you connect your "ESV" to the power, you will obtain a totally electric variator, which will not leak oil at all.