Wire EDM Machine Operation Chapter 8
Copyright November, 98 Page 8-10 Sodick Inc.
TABLE TO DRAW
This value is not used during cutting or dry run 1or 2 or in graphics. But in DRY RUN 3,
it will tell the control what surface you wish to see on the plotting table. For example, if
the value in Table to Draw is zero, you will see what the bottom of the part will look like.
If the value in Table to Draw is 2.00, you will see what the surface would look like two
inches above the tabletop. The best application for this is when you have a program that
has two different shapes on the top and bottom of the part (independent UV
programming), or if you have a taper program and want to be sure everything is set
correct.
N
N
O
O
T
T
E
E
S
S
A
A
B
B
O
O
U
U
T
T
D
D
R
R
Y
Y
R
R
U
U
N
N
Always dry run the program when all axis are in the proper startpoint location. This is
your last chance to catch any mistakes. Here is how Dry Run works in its three forms:
DRY RUN MODES
Dry Run 1: No sensor touch. If the wire hits something, it will break. Used for
most Dry Run tries. All axes motors run, all limit switches are checked.
Dry Run 2: Sensor touch enabled. If the wire touches something, an alarm will
sound. Used if you are trying to insure that the wire will not cut into a clamp,
fixture etc. All axis motors run, all limit switches are checked.
Dry Run 3: Table to Draw enabled (see page 8-9). The “ z plane” being drawn by
the motion of the x-y axis on the plotting table will be specified by Table to Draw.
Only X and Y-axes motors move in Dry Run number 3.
PARTIAL DRY RUN
If you want to Dry Run through a portion of the program and then switch to cutting, turn
“Dryrun” to 1 and press enter, then turn “Dryrun” to 0 as the machine is traveling on the
line before the line you want to start cutting on.
DRY RUN SPEED
The Dry Run speed can be controlled by the selection of the “MFR” 1 to 3 key. These
keys work the same for Dry Run as they do for jogging the machine, 0 = fastest, 3 =
slowest.
DRY RUN AND LIMIT SWITCHES
While Dry Running your job, if an axis travels beyond its limit, the machine may not stop
with the “Limit Switch” error. This is a normal condition do to the speed of the Dry Run.
It is required by the operator to monitor the axis position on the “SET” “DISPLAY”
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