Siemens Micromaster Inverter 440
■ Easy, guided start-up
■ Modular construction allows maximum configuration flexibility
■ Six programmable isolated digital inputs
■ Two scaleable analog inputs (0 V to 10 V, 0 mA to 20 mA) can also be used as a 7th/8th digital input
■ Two programmable analog outputs (0 mA to 20 mA)
■ Three programmable relay outputs (30 V DC/5 A resistive load; 250 V AC/2A inductive
load)
■ Low-noise motor operation thanks to high pulse frequencies, adjustable (observe derating if necessary)
■ Complete protection for motor and inverter.
he MICROMASTER 440 are frequency inverters for speed and torque control of three-phase motors. The various models available cover the performance range from 120 W to 200 kW (for constant torque (CT), alternatively up to 250kW (for variable torque (VT)).
The inverters are microprocessor-controlled and use state-of-the-art Insulated Gate BipoIar Transistor (IGBT) technology. This makes them reliable and versatile. A special pulse-width modulation method with selectable Pulse frequency permits quiet motor operation. Comprehensive protective functions provide excellent inverter and motor protection.
With the factory default settings, the MICROMASTER 440 is suitable for many variable speed applications. Using the functionally grouped parameters, the MICROMASTER 440 can adapted to more demanding applications.
The MICROMASTER 440 can be used in both ‘stand-alone’ applications as well as being integrated into ‘Automation Systems’.
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