Applications

The MICROMASTER 420 inverter is suitable for a variety of variable-speed drive applications. It is especially suitable for applications for pumps, fans and conveyor systems.
It is especially characterized by its customer-oriented performance and ease of use.
Its large supply-voltage range enables it to be used all over the world.

Design
The MICROMASTER 420 has a modular design. The operator panels and communications modules can be easily
exchanged without requiring any tools.

Main Characteristics

*Simple commissioning
*Modular construction allows maximum configuration flexibility
*Three fully programmable isolated digital inputs
*One scalable analog input (0 V to 10 V) can also be used as a 4th digital input
*One programmable analog output (0 mA to 20 mA)
*One fully programmable relay output (30 V DC/5 A, resistive 250 V AC/2 A, inductive)
*Silent motor operation is selectable when using high switching frequencies, adjustable (observe derating if necessary)
*Complete inverter and motor protection.

Options (Overview)

*EMC filters Class A/B
*Line commutating chokes
*Output chokes
*Gland plates
*BOP basic operator panel for parameterizing an inverter
*AOP advanced operator panel with plain-text and multilingual display
*Communications modules– PROFIBUS– DeviceNet
*PC connection kits
*Assembly kits for mounting the operator panels in the control cabinet doors
*PC commissioning tools,running under Windows 95/98 and NT/2000.

International Standards

*The MICROMASTER 420 inverter complies with the requirements of the EU lowvoltage guideline; filtered
versions also comply with the EU EMC guideline
*The MICROMASTER 420 inverter has the > marking
Note:See Appendix for standards.