CONTROL BOARD
The control board receives status and analog
feedback signals from the inverter board, input board,
and various sensors. The control circuitry interprets
these signals, makes decisions and changes the
machines mode and output to satisfy the requirements
as defined by the circuitry. The control board sends a
signal to the inverter board to control the output
current but the actual regulation circuits are on the
inverter board.
The display board, directly connected to the control
board, communicates PRO-CUT 25 status and
operating conditions to the user. There are four status
indicators: Power On, Gas Pressure, Thermal
Overload, and Safety Error.
THEORY OF OPERATION
E-6 E-6
PRO-CUT 25
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FIGURE E.6 – CONTROL BOARD
