Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019 39
Product Overview Chapter 1
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-50 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-50 to stop gating the SCRs and initiate a
temperature fault.
For a detailed layout of this circuit board, refer to Figure 37 on page 76
.
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