Rockwell Automation 6012DB PowerFlex Medium Voltage Variable Frequency Drive User Manual
Page 27
Rockwell Automation Publication 6000-UM001B-EN-P - October 2014
27
Drive System Layout
Chapter 2
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 VFDs of different power ratings
(
).
Figure 19 - Typical Fixed-mounted Power Module
Line Terminals
Fuse
Optic Fiber Socket
and Status Indicator
Output Terminal