Tweco 6000 CE Merlin - Manual (Page 18)

INTRODUCTION & DESCRIPTION 2-4 Manual 0-2601
3. Thermal Interlock
Thermal overload sensors are located in the transformer,
pilot resistors, and main heatsink in the power supply. If
one of these components is overheated the appropriate
switch will open, causing the temperature light to turn from
green to red and shutting off power to the main contactor.
When the overheated component cools down the switch
will close again and allow operation of the system.
G. Plasma Torches
Plasma torches are similar in design to the common automotive
spark plug. They consist of negative and positive sections
which are separated by a center insulator. Inside the torch, the
pilot arc is initiated in the gap between the negatively charged
electrode and the positively charged tip. Once the pilot arc has
ionized the plasma gas, the superheated column of gas flows
through the small orifice in the torch tip, which is focused on
the metal to be cut.
The Maximizer 300 Torch uses an internal closed-loop cooling
system. Deionized coolant is distributed from a reservoir in the
Power Supply through the coolant supply lead. At the torch,
the coolant is circulated through the torch tip and electrode,
where the extra cooling helps to prolong parts life. Coolant
then circles back to the power supply through the return lead.
The Maximizer 300 also can use secondary gases such as com-
pressed air, nitrogen (N2), water, and carbon dioxide (CO
2
).
2.05 Options And Accessories
These items can be used to customize a standard system for a
particular application or to further enhance performance. Torch
accessories are listed in the separate Torch Instruction Manual.
NOTE
Refer to Section 6, Parts Lists, for ordering infor-
mation.
A. RC6010 Remote Control
For mechanized systems, this low profile unit pro-
vides full CNC capability and allows the operator to
control all system functions from a remote location.
B. SC-10 or SC11 Standoff Controls
For machine torch systems, the Standoff Control automati-
cally finds height and maintains torch standoff with a high
speed torch lifter motor.
NOTES
Standoff Control SC10 must be used with the Re-
mote Control RC6010.
Standoff Control SC11 can be used without Re-
mote Control RC6010.
C. Computer Control Cable Kits
For interfacing the power supply with a computer or auxil-
iary control device. Available in various cable lengths.
D. High Pressure Regulators
Available for air, oxygen, argon/hydrogen, nitrogen, CO
2
,
and water.
E. High Flow Water Shield (HFWS) Assembly
Reduces arc glare, noise, and fumes during the cutting
process.
F. Two Stage Air Line Filter
Removes damaging contaminants as small as 5 microns
from the plasma stream when using compressed air.
G. Hour/Counter Meters
Meter assembly containing two meters. One meter indi-
cates the total number of hours and minutes that the main
cutting arc has been on to a maximum of 99999-59 (hours-
minutes). The second meter counts the number of times
that the cutting arc has been started to a maximum of
99999999 starts. Both meters can be reset to zero.
H. Plasma/Secondary Gas Control (GC 3000)
A remote control to select one of various plasma and sec-
ondary gases that can be connected to the Power Supply.
This allows one-time plumbing connections of various gas/
water supplies. The operator has complete flexibility to
quickly select the best plasma and secondary gas combi-
nations for the metal to be cut.