SEIMENS AC DRIVES

MICROMASTER 440 – Description

Even in the world of drives, there are often forces which are difficult to control. Until the most powerful of our frequency inverters enters the field. The MICROMASTER 440 has been specially designed for those applications which require broader functionality and a greater dynamic response than is usually the case. The sophisticated vector control system ensures a uniformly high drive quality, even when sudden load changes occur. Fast response inputs and positioning deceleration ramps allow movement to target positions even without an encoder. Due to an integrated brake chopper, it works with outstanding precision, even during braking and short declaration ramps. All this is possible within a power range starting at 0.12 kW (0.16 HP) and going up to 250 kW (350 HP).

MICROMASTER 440 – a brief Summary of its Strengths

• HMIPlaintext control panels simplify operation and support even exotic languages 
• Dynamic driving and brakingVarious types of controls and braking facilities
• CommunicativeVarious communication interfaces ensure usability with the most common network applications 

MICROMASTER 440 – Technical Data

Voltage and power ranges	200-240 V, ± 10%, 1 AC, 0.12 to 3 kW (0.16 to 4 HP) 200-240 V, ± 10%, 0.12 to 45 kW (0.16 to 60 HP) 380-480 V, ± 10%, 0.37 to 250 kW (0.5 to 350 HP) 500-600 V, ± 10%, 0.75 to 90 kW (1.0 to 125 HP)
Types of control	Vector control, FCC (Flux Current Control), multipoint characteristic (parameterizable V/f characteristic), V/f characteristic

MICROMASTER 440 – Typical Uses

Numerous applications in areas such as material handling systems, the textile industry, elevators, hoisting gear, mechanical engineering and the food, beverages and tobacco industries.

• Micromaster-VFD-Users Manual

MICROMASTER 430 – Description

Every task performed by a drive system involves its own specific requirements. There is therefore a demand for inverter solutions that can be easily and flexibly adapted to cope with the broadest variety of challenges. It is exactly this flexibility which characterizes our modular MICROMASTER 430. Specially for use with pumps and fans in industry, it performs a wide variety of tasks in similar applications as well. Compared to the MICROMASTER 420, it features greater power efficiency and has more inputs and outputs as well as an optimized operator panel with switch-over between manual and automatic modes of operation.

MICROMASTER 430 – a brief Summary of its Strengths

• Comprehensive protection Refined motor protection thanks to special PTC/KTY84 input
• SpecializedIdeal partner for industrial pump & ventilator applications
• CommunicativeVarious communication interfaces ensure usability with the most common network applications  

MICROMASTER 430 – Technical Data

Voltage and power ranges	380-480 V, ± 10%, 3 AC, 7.5 to 250 kW (10 to 300 HP)
Types of control	FCC (Flux Current Control), multipoint characteristic (parameterizable V/f characteristic), V/f characteristic

MICROMASTER 430 – Typical Uses

Specially suitable for pumps and fans.

• Micromaster-VFD-Users Manual

MICROMASTER 420 – Description

You need a frequency inverter which can be adapted to your individual requirements without any great effort? No problem for our MICROMASTER 420 – the universal inverter for 3-phase networks and optional field-bus connection. Thanks to its modular design, the extensive standard functions can be supplemented with a wide variety of options. And you do not even need tools, as the operator panels and the communications modules can be simply plugged in. Screwless control terminals – as with the rest of the family – make terminal connection child's play.

MICROMASTER 420 – a brief Summary of its Strengths

• Compact designBase components such as reactors and filters complement the compact solution
• VersatileEasy start-up for multiple use
• CommunicativeVarious communication interfaces ensure usability with the most common network applications

MICROMASTER 420 – Technical Data

Voltage and power ranges	200-240 V, ± 10%, 1 AC, 0.12 to 3 kW (0.16 to 4 HP) 200-240 V, ± 10%, 3 AC, 0.12 to 5.5 kW (0.16 to 7.5 HP) 380-480 V, ± 10%, 3 AC, 0.37 to 11 kW (0.5 to 15 HP)
Types of control	FCC (Flux Current Control), multipoint characteristic (parameterizable V/f characteristic), V/f characteristic

MICROMASTER 420 – Typical Uses

Conveyor systems, material transport, pumps, fans, mechanical engineering.

• Micromaster-VFD-Users Manual