Medium Voltage Application Guide

Key features
SOFT STARTERS
MVX soft starters offer several special functions to ensure ease of use and to provide optimal motor control in all
environments and applications.
Customisable Protection
The MVX offers comprehensive protection to ensure safe operation of the motor and soft starter. The protection
characteristics can be customised extensively to match the exact requirements of the installation.
Advanced Thermal Modelling
Intelligent thermal modelling allows the soft starter to predict whether the motor can successfully complete a start.
The MVX uses information from previous starts to calculate the motor's available thermal capacity, and will only
permit a start which is predicted to succeed.
Comprehensive Event and Trip Logging
The MVX has a 99-place event log to record information on soft starter operation. A separate trip log stores
detailed information about the last eight trips.
Informative Feedback Screens
A digital display screen allows the MVX to display important information clearly. Comprehensive metering
information, details of starter status and last start performance allow easy monitoring of the starter's performance at
all times.
Dual Parameter Set
The MVX can be programmed with two separate sets of operating parameters. This allows the soft starter to
control the motor in two different starting and stopping configurations.
The secondary motor settings (parameter groups 9 and 10) are ideal for dual speed motors or conventional
(squirrel-cage) motors which may start in two different conditions (such as loaded and unloaded conveyors).
The MVX will use the secondary motor settings to control a start when instructed via a programmable input (refer
to parameters 6A and 6F Input A or B Function).
Fibre Optics
The MVX uses two-line fibre optic connections (per phase) between the low voltage control module and the high
voltage phase cassette for electrical isolation. This fibre optic link simplifies installation of chassis mount MVX starters
into custom panels.
MVX Phase Cassette
The MVX phase cassette is a robust and extremely compact design, for easy integration into a panel enclosure. The
unique draw-out design simplifies general maintenance and servicing.
A service lifting trolley is supplied with each MVX panel or phase cassette, for easy installation and removal.
MVX phase cassette
GP06 and air insulation.
Small footprint IP00 starter.
Self-contained phase cassette.
Standard 150 mm pole centres.
Isolated control via fibre optic
connections.
Rack-in/rack-out phase cassettes.
710-12280-00A Medium Voltage Application Guide Page 35