Wire EDM Machine Operation Chapter 14
Copyright November, 98 Page 14-3 Sodick Inc.
through the AWT unit and the upper and lower wire guides. If the machine has an
automatic wire threader, flip the switch on the control panel to cut the wire.
2) Sometimes it is helpful to release the wire tension with the wire tension knob while
installing a new spool to make rotation of the wire tension roller easier. If you do this,
make sure to readjust the wire tension when you are finished.
3) Be sure that the wire passes correctly through the Wire Broken sensor switch. If it
does not, you will get a false wire broken alarm when you attempt to start the machining
cycle.
AWT SPECIAL NOTE
4) If you have an AWT, after the wire is cut (T90 or by switch) the pinch rollers on the
AWT stay clamped on the wire. To thread the wire manually, you need to press the
“AWTII” switch, then the “OFF” key to open these pinch rollers.
Please remember, when changing wire spools, do not use the “AWTI” switch to cut the
wire. If you do, the pinch rollers on the awt will stay clamped and you will have to do an
“AWTII” to release them.
M
M
A
A
N
N
U
U
A
A
L
L
L
L
Y
Y
A
A
D
D
J
J
U
U
S
S
T
T
F
F
L
L
U
U
S
S
H
H
I
I
N
N
G
G
There are 2 flow meters on the front of the machine. These affect and show the amount of
flushing flow going to the flush nozzles. There are also high and low flushing knobs
located below the resistivity meter. These control the speed of the flush pump when in
high or low flushing mode. There is a digital readout around the front corner showing the
frequency or RPM of the pump when in high or low flushing mode.
If the high flushing knob is set too low, the worktank fills up slowly.
If the low flushing knob is set too low, you might get H161 alarm. To eliminate this
alarm from appearing, adjust the low flushing knob while the low flushing is turned on so
the digital readout is between 12.0 and 15.0.
Set Low Flushing To 15Hz
Set High Flushing To 60Hz
E
E
D
D
G
G
E
E
F
F
I
I
N
N
D
D
B
B
Y
Y
U
U
S
S
I
I
N
N
G
G
T
T
H
H
E
E
S
S
T
T
K
K
E
E
Y
Y
This is 1 of 2 procedures used to locate the edge of a workpiece. It leaves the wire flush
with the edge of the part. However, this procedure is not the most accurate. Remember
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