Interface board – Rockwell Automation MV SMC Flex Motor Controller (for Series K or later) User Manual
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Rockwell Automation Publication 1560E-UM051F-EN-P - June 2013
Chapter 1
Product Overview
Interface Board
This circuit board takes current transformer signals plus line-side and load-side
voltage feedback signals from the voltage sensing board and passes them to the
SMC Flex for processing. The control module produces gating signals for the
SCRs, which are received on the interface board, and used to drive fiber-optic
transmitters. The gating signals are sent to the gate-driver circuit board via
fiber-optic cables. The interface board also receives temperature feedback from
the gate-driver board via fiber-optic cable(s). If the heatsink temperature rises
above a set value, a signal is sent to the SMC Flex to stop gating the SCRs and
initiate a temperature fault.
For a detailed layout of this circuit board, refer to