CONTROL AND DISPLAY BOARDS
The control board receives status and analog feed-
back signals from the output board, display board,
power board and various sensors. The processor
interprets these signals, makes decisions and changes
machine mode and output to satisfy the requirements
as defined by the internal software. The control board
regulates the output of the machine by controlling the
IGBT switching times through pulse width modulation
circuitry. See Pulse Width Modulation in this section.
The display board receives commands from the con-
trol board and, via indicator lights, communicates
PRO-CUT 80 status and operating conditions to the
user.
THEORY OF OPERATION
E-6 E-6
PRO-CUT 80
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FIGURE E.6 – CONTROL AND DISPLAY BOARDS
