Rockwell Automation Publication 6000-UM002G-EN-P - August 2022
31
Chapter 2 Drive System Layout
Figure 24 - Low Voltage Power Module
Control signals to the Power Module and the feedback signals from the Power
Module are transmitted by fiber-optic cables, which provide electrical isolation
between the medium voltage and low voltage sections of the drive, and
protects against electromagnetic interference.
The control signals from the main control unit, through the optical-electrical
converter, are sent to the Power Module control board for further processing
and to the corresponding gate drive circuits to turn the IGBTs on or off.
The status information of the Power Module is transmitted through the
electrical-optical converter and sent to the main control unit. When there is a
fault, the main control unit sends control signals to lockout or bypass the
affected Power Module.
The Power Module cabinet consists of Power Modules, current transformers
and high-voltage cable.
The Power Modules are divided evenly into three phases (U, V, and W). The
units in each phase are connected end-to-end at the output terminals. Then
individual phases are formed, using a star connection. Current transformers
are installed into the U phase and W phase.
Different models of Power Modules are used for drives of different power
ratings (
).
Input U
Input V
Input W
Fuse 1
Fuse 2
Three-phase diode
rectifier bridge
DC Bus
capacitor network
Single-phase IGBT
inverter network
IGBT 1
IGBT 2
Output A
Output B
D1
D2
D3
D4
D5
D6
C1
R1
C2
R2
C3
R3
Содержание Allen-Bradley PowerFlex 6000
Страница 10: ...10 Rockwell Automation Publication 6000 UM002G EN P August 2022 Preface Notes ...
Страница 82: ...82 Rockwell Automation Publication 6000 UM002G EN P August 2022 Chapter 4 Parameters and Function Codes Notes ...
Страница 134: ...134 Rockwell Automation Publication 6000 UM002G EN P August 2022 Appendix C Preventative Maintenance Schedule Notes ...
Страница 136: ...136 Rockwell Automation Publication 6000 UM002G EN P August 2022 Appendix D Torque Requirements Notes ...
Страница 148: ...148 Rockwell Automation Publication 6000 UM002G EN P August 2022 Appendix E Spare Parts Storage Notes ...