

 NEW ESV VIDEO
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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. |