Tormach 1300PL, Руководство оператора

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5.1 SYSTEM REFERENCE
5.1.1 Water Table
The machine table is 51.2" x 51.2" (1300 mm x 1300 mm). It
can be moved backwards in the frame by up to 10" (250 mm)
to provide an open area for cutting large or bulky objects that
do not fit on top of the water table (items like large pipes or
weldments).
Note: Make sure you do not forget to connect the
ground clamp to the workpiece when cutting
something that is too large for the water table.
The water table has an internal depth of about 5.2" (132 mm)
and a maximum water capacity of 59 US gallons (223 liters).
Don't put more than 750 lb (340 kg) on the machine table
(excluding water). Always verify that the workpiece and work-
holding devices are centered on the machine table.
Always lock the water table in the forward or backwards
position before running a program.
5.1.2 Z Torch Head
The Z Torch head is responsible for control of torch height
during cutting. It also contains the magnetic torch breakaway
head and the proximity sensor required to detect a breakaway.
The Z head can travel 3.9" (100 mm) vertically, which allows
for cutting bulky items or even changing the height of the slats
in the water table if cutting conditions require it.
The Z head is also responsible for material touch-off at the
start of a cut. Touch-off on the material can occur one of two
ways:
l
Ohmic Touchoff
l
Physical Touch Switch
Ohmic Touchoff
Ohmic Touchoff is a sensitive and precise method of Z
positioning for initial cut height. The cap on the end of the
torch is made of a conductive material (usually copper) that is
linked to the machine's control system through a removable
lead.
When the head touches the workpiece during the initial
probing move before a cut, continuity between the torch cap
and ground (through the plasma ground clamp) is detected by
the control system.
This system works well for thin workpieces like 20 ga. (1 mm)
and thinner sheet metal, where the weight of the torch during
probing could otherwise deform the sheet metal before the
probe switch triggers.
Physical Touch Switch
The physical touch switch acts as a backup to the ohmic touch
system. It consists of a micro-switch inside the lifter head that
detects when the spring-loaded lead nut on the Z lifter is
pushed back by contact with the workpiece.
The physical touch switch will automatically be used when the
ohmic touch switch does not trigger first. This can be useful in
situations like cutting painted metal, where no continuity with
the workpiece is possible.
©Tormach® 2020
Specifications subject to change without notice. Page 44 UM10720: 1300PL Operator's Manual (Version 0820B)
For the most recent version, see tormach.com/support
5: SYSTEM BASICS