Tweco 51 with SL100SV CutMaster - Manual (Page 47)

Manual 0-4640 4-5 OPERATION
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H. Select Current Output Level
1. Place RUN / Rapid Auto Restart / SET to RUN (up) or Rapid Auto Restart (center) position. Gas flow stops.
2. Set the current output level, up to 40 amps.
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I. Cutting Operation
When the torch leaves the workpiece during cutting operations with the RUN / Rapid Auto Restart / SET switch in the RUN
(up) position, there is a brief delay in restarting the pilot arc. With the switch in the 'Rapid Auto Restart' (middle) position,
when the torch leaves the workpiece the pilot arc restarts instantly, and the cutting arc restarts instantly when the pilot arc
contacts the workpiece. Use the 'Rapid Auto Restart' position when cutting expanded metal or gratings, or in trimming
operations when an uninterrupted restart is desired.
J. Typical Cutting Speeds
Cutting speeds vary according to torch output amperage, the type of material being cut, and operator skill.
Output current setting or cutting speeds may be reduced to allow slower cutting while still producing cuts of excellent quality.
K. Postflow
De-activate the start signal (provided by the CNC Control) to stop the cutting arc. Gas continues to flow for approximately 6
seconds. During post - flow, if the user activates start signal, the pilot arc starts. The main arc transfers to the workpiece if the
torch tip is within transfer distance to the workpiece.