9 Arc Welding Application
9.3 Function Outlines
9-9
149235-1CD
RE-CSO-A031
9.3.5 Arc Restart Function
When the manipulator stops because of an arc failure, a simple start would leave a break in the welding
line. This is prevented by using the arc restart function.
When the arc restart function is executed, the manipulator is restarted using the method specified in the
Arc Auxiliary Condition File
*1
. There are three methods to restart the manipulator after an arc failure:
*1 The arc auxiliary condition file defines the following: current, voltage and speed at
restart; method of restart after a gas shortage or wire shortage.
*2 The overlap length (the length of the section where welding is repeated after a restart)
can be set as desired (0 to 99.9mm).
• With the arc OFF the controller outputs an error signal
and the message “RESTARTING FOR ARC,” but
continues manipulator’s movement. After exiting the
arc section, the controller outputs the message “END
OF ARC RESTARTING,” and continues the operation.
• With the arc ON trial, the manipulator automatically
returns for the specified overlap length
*2
, and then
continues welding.
• The manipulator stops and waits for a manual
intervention. After intervention (), the operator
should return the manipulator to the original stop
position (). And then press [START] again. The
manipulator returns for the specified overlap length
*2
(
) and continues the work.
A cursor operation resets the “restarting” status. Therefore, the arc restart function cannot
be executed after the cursor operation.
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