Chapter 3 Product Overview; What This Chapter Contains; Basic Principles - INVT Goodrive 35 Series Operation Manual

Goodrive35 inverters
Chapter 3 Product Overview

3.1 What this chapter contains

The chapter briefly describes the operation principle, product characteristics, layout, name plate and
type designation information.

3.2 Basic principles

Goodrive35 series inverters are wall, floor and flange mountable devices for controlling asynchronous
AC induction motors and permanent magnet synchronous motors.
The diagram below shows the simplified main circuit diagram of the inverter. The rectifier converts
three-phase AC voltage to DC voltage. The capacitor bank of the intermediate circuit stabilizes the
DC voltage. The converter transforms the DC voltage back to AC voltage for the AC motor. The brake
pipe connects the external brake resistor to the intermediate DC circuit to consume the feedback
energy when the voltage in the circuit exceeds its maximum limit.
Fig
3-1 The simplified main circuit diagram (inverters of 380 V≥37 kW)
Fig
3-2 The simplified main circuit diagram (inverters of 380 V≤30 kW)
Fig
3-3 The simplified main circuit diagram (inverters of 660 V)
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Product Overview