MICROMASTER 420

The Universal Inverter for Every Challenge

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.

Typical Uses

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

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)
Operating temperature	-10 °C to +50 °C
Process control	Internal PI controller
Types of control	FCC (Flux Current Control), multipoint characteristic (parameterizable V/f characteristic), V/f characteristic
Inputs	3 digital inputs, 1 analog input
Outputs	1 analog output, 1 relay output
Link-up to automation	The ideal partner for your automation needs, from connection to SIMATIC S7-200 to integration in TIA with SIMATIC and SIMOTION.

Its Strengths in Brief

Compact housing Easy to install Highly versatile inputs and outputs FCC control (Flux Current Control) for high drive quality, even when load changes occur Different methods of commissioning, via operator panel or cost-free software tool Modular system of inverter options Parameterizable acceleration/deceleration times (0 to 650 s)

Compound braking for controlled rapid braking 4 skip frequencies for minimizing stress on the machine when resonance occurs Automatic restart Minimal stress on motor when inverter connected to rotating motor Prepared for use in IT networks Integrated protection/overload functions Available with or without integrated EMC filter