Wire EDM Machine Operation Chapter 7
Copyright November, 98 Page 7-7 Sodick Inc.
value). This negative call out is new for Sodick, starting with the Mark21 and EX21
controls. But this is a good time to point out that there is another way of setting offsets
(positive or negative) using what we call a HEADER. Cutting conditions can also be
entered into the header using C registers.
U
U
S
S
I
I
N
N
G
G
A
A
“
“
H
H
E
E
A
A
D
D
E
E
R
R
”
”
I
I
N
N
T
T
H
H
E
E
N
N
C
C
F
F
I
I
L
L
E
E
A “Header” is the portion at the top of your NC file, which can contain the cutting
condition and “H” registers for the current program to use.
There are six H-registers at the header of any program input into “New File” ranging
from H000 to H005. Actually the values of the H registers do not matter and you can
change them if you prefer, but your NC program must call these H registers to use them.
Below is a sample of these H registers from newfile. NOTE: Decimal points cannot be
used in the header.
(NEWFILE)
H000 = +00000000 H001 = +00000000 H002 = +00000000
H003 = +00000000 H004 = +00000000 H005 = +00000000
When you specify H001 in the program after the G41 or G42 codes, the control will look
for H001 register in the header of the program and use the value that is stored in that H
register. If there is not an H001 register in the header, it looks in the offset file for register
H001 and uses the value in that register (default value of H001 is .0001”).
ENTERING VALUES FOR THE H CODES OF NEWFILE
You can enter either plus or minus values in the header H registers. Lets say you needed
.010" clearance (per side) on a part that is going to be cut.
You could use H001 for the first pass, H002 for the second pass, and H003 for the third
pass. But before running the program, insert the values of the offsets into the header H
registers. Here is what the header would look like prior to running the program with .010
die clearance:
NC Program Example: H1 – H2 – H3 offset data is input manually in EDIT screen
H000 = +00000000 H001 = -00000015 H002 = -00000044
H003 = -00000047 H004 = +00000000 H005 = +00000000
G92X0Y0
T84
C1
G41H1 (This calls the value of H1 which was set into the Header above)
G01X.5
Y.5
X0
G40Y0
T85
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