YASKAWA YRC1000 Operator's Manual page 107

1 Spot Welding Application Using a Motor Gun
1.11 Tip Dressing Instruction (SVDRESMOV Instruction)
{DRESSOR}.
16. ROTATION DIRECTION
Set a rotating direction of the servo dresser.
17. ROTATION SPEED (1ST PRESS)
18. ROTATION SPEED (2ND PRESS)
Set a rotating speed of the servo dresser.
When the tip dress instruction (SVDRESMOV) is started, the dresser
rotates at a rotation speed (1st press), and the speed shifts to a rotation
speed (2nd press) when the gun pressure is changed to the 2nd press
and this speed is kept till the tip dress instruction (SVDRESMOV) is
completed.
19. SPEED FLUCTUATION LIMIT
Set the speed fluctuation tolerance value for the tip dress instruction
(SVDRESMOV). Alarm may occur in case the actual speed is
decreased (or increased) from the speed specified at {ROTATION
SPEED (1ST PRESS)} or {ROTATION SPEED (2ND PRESS)}.
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