Slope Up/Down Function - YASKAWA NX100 Operator's Manual

149235-1CD
9.3.8

Slope Up/Down Function

The slope up/down function is used during welding to gradually change the welding condition. This
function is extremely effective in conducting heat for such operations on workpieces such as the one
shown below.
During the welding of a workpiece as shown below, especially during the period before the end of
welding, the tearing and dropping of metal can occur quite frequently due to heat conduction.
However, even in this example, if the welding condition is gradually decreased before the end of
welding, tearing and dropping of metal can be prevented.
Reference Job
NOP

MOVL V=500
ARCON AC=210 AVP=100
MOVC V=80
MOVC V=80
MOVC V=80
MOVC V=80
ARCCTE AC=180 AVP=100 DIS=20.0
MOVC V=80
ARCOF AC=160 AVP=80 T=0.30

END
Current
210
180
160
P1
Welding start point (P1) and welding
end point (Pn) must be the same.
Moves to welding start point P1.
Arc starts.
Moves to taught point Pn-1.
Gradually decreases the current from the point 20mm
short of the welding end point.
Moves to welding end point Pn.
Arc ends.
Main condition
P2
9-12
9 Arc Welding Application
Welding condition
gradually decreases.
(Slope Up/Down Func.)
End condition
Manipulator
20mm
stop (0.3s)
Pn
Pn-1
9.3 Function Outlines
355 of 493
RE-CSO-A031