Toshiba GX7R ASD, Quick Start Manual

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Introduction
Congratulations on the purchase of the GX7R Active Front End Adjustable Speed Drive !
The GX7R Active Front End Adjustable Speed Drive (ASD) is a configurable solid-state AC drive
that features Toshiba International Corporation’s (TIC) Vector Control algorithm and the
Regeneration capability.
The Regeneration capability comes into play when the motor slip is positive and the torque is negative
(i.e., decelerating load or overhauling load). The properly configured ASD converts the energy
produced by the negative torque of the load into 3-phase AC energy that is returned to the municipal
supplier automatically.
The active front end of the GX7R ASD is required to support the Regeneration function and
significantly contributes to the mitigation of harmonic distortion and an increased power factor.
The GX7R ASD is a very powerful tool, yet surprisingly simple to operate. The user-friendly
Electronic Operator Interface (EOI) of the GX7R ASD has an easy-to-read LCD screen. The EOI
provides easy access to the many monitoring and programming features of the GX7R ASD.
The GX7R ASD uses digitally-controlled pulse width modulation (PWM). The programmable PWM
functions may be accessed via the easy-to-use menu or via the Direct Access Numbers (see the GX7R
ASD Install and Op Manual ).
This feature, combined with Toshiba’s high-performance software, delivers unparalleled motor control
and reliability.
To maximize the abilities of your GX7R ASD , a working familiarity with this guide will be required.
This guide has been prepared for the GX7R ASD installer, user, and maintenance personnel. This guide
may also be used as a reference guide or for training. With this in mind, use this guide to develop a
system familiarity before attempting to install, operate, or perform any maintenance on the device.