5.2.4.24
Application arc welding software
In arc welding applications, the welding voltage and welding current or wire speed are
specified within a welding data field and added as an argument to the program instruction
for the welding position.
The control system issues the relevant welding voltage as a voltage reference with definition
range ±10 V at an analog output port which in turn controls the current source of the
welding equipment. The definition range for the combined I/O is from 0 to +10V.
The control system also issues the relevant welding current/ wire speed as a reference with
definition range ±10 V at an analog output port which in turn controls the wire feed unit of
the welding epuipment. The definition range for the combined I/O is from 0 to +10V.
The principle of the conversion in the control system of programmed welding current to
current reference in the form of reference voltage in volts is given by the following curve:
Currant reference
Reference voltage
at output port
Refmax(V)
Ref
min.
(V)
V)
Straight line which
controls the
conversion
Programmed
welding current
(A)
'' Points to type and value
of the parameters entered
The same principle applies for the conversion by the control system of programmed welding
voltage to a voltage reference in the form of a reference voltage in volts (PARAM MIN (A) is
however designated PARAM MIN (V) etc.).
Port voltage reference
Description
The parameter VOLTAGE PORT defines which analog output port is to be used
as voltage reference.
Menu
VOLT + PORT
Guide text
VOLTAGE PORT =
Def. range
Port 21-23 (combined I/O : Port 21-22)
Default value
Port 21
INSTALLATION S3
5:50
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