Goodrive600 series high-performance multifunction VFD
Product overview
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3 Product overview
3.1 What this chapter contains
This chapter mainly introduces the operation principles, product features, layouts, nameplates and model designation
rules.
3.2 Basic principles
The VFD is used to control asynchronous AC induction motors and permanent magnet synchronous motors. It consists
of the rectifier and inverter units. The rectifier unit converts 3PH AC voltage into DC voltage, and the inverter unit
converts DC voltage into AC voltage that can be used by an AC motor. The 45kW rectifier unit is embedded with a
braking circuit so that the braking pipe connects the external braking resistor to the DC circuit to consume the feedback
energy when the DC voltage exceeds the max. value. The following figures show the schematic diagram and main circuit
diagram of each unit.
Rectifier unit
Inverter unit 1
(-)
(-)
(-)
(+)
(+)
(+)
R S T
U1
V1
W1
Inverter unit 2
U2
V2
W2
Inverter unit
N
Un
Vn
Wn
M
M
M
Figure 3-1 Schematic diagram