Feature

Frequency inverter for decentralised motor and wall installation

WEG has introduced the MW500 robust frequency inverter with decentralised design that simplifies commissioning, installation and motor start-up.

21/12/2014 16:55:05

The space-saving, IP66 protected MW500 drive can be mounted directly on motor terminal boxes without any special protective housing, or mounted on a wall adjacent to the motor. As a result, the need for lengthy cables and switch cabinets is eliminated, which reduces installation costs.

the MW500 can withstand 150 percent overload for 60 seconds at up to 10 minute intervals, and will operate at temperatures up to 40°C (wall installation) and 50°C (motor installation).
Three LEDs on the top of the inverter indicate motor status (ready, alarm and fault), and the unit can be isolated for safe maintenance.

The inverter controls asynchronous motors in the power range 0.75 to 7.5kW, and is offered as three variants for a mains voltages of 380 to 400V (A: 1.1 to 1.5kW, B: 2.2 - 4kW and C: 5.5 - 7.5kW), and for 200 to 240V, as variant A (0.75 to 1.1kW).

The drive is available with a built-in analogue potentiometer to regulate motor speed or it can be controlled from an optionally integrated control panel (HMI). The standard version of the MW500 has a PID process controller and an integrated PLC with numerous programming functions. An EMC filter conforming to EN 61800-3 is integrated within the device and category C2 and C3 variants are optional.

Digital inputs, outputs and communication protocols such as CANopen, DeviceNet and Profibus-DP are available as expansion modules, while a memory card enables process data to be transferred easily from one device to another.

The Windows-based SuperdriveG2 application software for the programming, control and monitoring of the MW500 is available to download from the WEG website for free.

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.