Wire EDM Machine Operation Chapter 1
Copyright November, 98 Page 1-10 Sodick Inc.
SF
Parameter Range: (0000-2009) EF2 (0000-9099)
“SF” stands for servo feed. This sets the maximum feedrate of the table. Most apparent
when changing SF is the feed rate. SV and SF are factors that allow you to increase or
decrease the cutting speed. By adjusting SV and SF you can keep the control from trying
to crowd the workpiece into the wire which would result in unstable cutting. Adjust the
SF value to avoid holding the feedrate back if the feedrate set is actually reached. In other
words, the SF should always be set faster than the machine would actually be able to cut
for a given workpiece.
The left-hand digit (thousands) is a value that selects a modifier to the servo. Please use
the value recommended from the cutting condition file for the particular skim pass being
made.
The following describes this parameter based on the machine type (EF2 or not).
NON EF2: The lower the number the faster the table will move 0004(faster) vs
0006(slower). The following table shows the maximum feedrate the machine
would travel at a given setting (cutting air).
0000 or 2000 1.900” min.
0001 or 2001 1.350” min.
0002 or 2002 .850” min.
0003 or 2003 .620” min.
0004 or 2004 .406” min.
0005 or 2005 .300” min.
0006 or 2006 .198” min.
0007 or 2007 .158” min.
0008 or 2008 .118” min.
0009 or 2009 .078” min.
EF2: The setting value is a direct input of feedrate. The higher the number the
faster the feedrate. An example follows.
0004 = 0.040” min.
0015 = 0.150” min.
0026 = 0.260” min.
0500 = 5.000” min.
C
Parameter Range: (00-04)
“C” stands for Capacitance. On the Mark 21, capacitance is no longer necessary, but it
can still be used. Capacitance is a way of adding more power to the wire. It is only used
during skim cutting on the Mark 21 control.
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