Lincoln Electric INVERTEC 270SX Service Manual page 16

CONTROL BOARD AND REMOTE BOARD
Control Board (User Interface) and
Remote Board
The control board receives status and analog feedback
signals from the inverter board, input board and
various sensors.
It receives also commands from the user-operated
controls that are connected to the control board.
These push buttons and potentiometer's allow the
operator to set the current output of the machine.
Other controls allow for the adjusting of the Arc Force
the selection of the Hot Start option and the Stick or
TIG mode of operation.The control board processes
and compares these commands with the voltage and
current feedback information it receives from the
output current sensor and the output voltage sensing
leads.
Control board also gives error codes, using its LEDs,
to the user, see dedicated section, later on this service
manual.
On the remote board is located the remote control
connector and the PTCs that protect the control board
in the event that a remote cable is damaged.
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