General Details; Construction - Fronius MAGIC WAVE 2000 FUZZY Operating Instructions Manual

GENERAL DETAILS

Designed as a primary transistor-switched welding machine, the
Fronius MAGIC WAVE 2000 Fuzzy (AC/DC) resp. TRANSTIG
2000 (DC) represents a further development of the transistor
controlled welding machine. It is especially suitable for TIG-
manual-, automaton- and MANUAL ELECTRODE WELDING in
the AC and DC area. The machine's compact dimensions, low
weight and modest power requirements are important advan-
tages, both in the production and repair fields.
Particular technical advantages
(applies to both welding processes)
- Low current consumption - big energy savings
- High degree of efficiency due to frequency transformation and
transistor technology
- Optimum welding quality through constant current characteri-
stics
- Current stabilisation: The set welding current value is kept
constant by means of the electronic controls regardless of the
length of mains or welding cables, or of fluctuations in the mains
voltage.
- Temperature of primary and secondary heat dissipators is
monitored by thermostatic cut-outs, with an LED display (Error)
- Thermostatically controlled fan
- Primary over/undervoltage monitoring device with LED display
ensures optimum safety (Error)
- Machine is suitable for welding in confined spaces
under conditions of increased electrical danger
- Continuous welding current adjustment from 5-200A AC /
3-200A DC / 3-180 EL
- A digital ammeter with COMMAND & ACTUAL VALUE
INDICATION is fitted as standard, so that it is also possible to
reas off the desired welding current (command value) when the
machine is in open circuit
- Continuous remote-control regulation of welding current
- Automatic remote-control unit recognition in the case of hand
and pedal-operated units and of pulsed-arc and spot-welding
units (no need for internal/external switchover)
- Digital voltmeter with actual value indication
- Protection class IP 23
TIG WELDING
- contact-free ignition with electronic ignition device (HF)
- the 2-step or 4-step function sequence preselected on the
machine is called up via the torch trigger and comprises: gas
pre-flow, start arc, welding current rise to main current via
upslope, current drop via down slope, crater-fill current and gas
post-flow
- ignition monitoring (see p. 20)
- welding torches with dual button function make it possible to
alter the current while welding, between the main current and
the crater-fill current, without interrupting the welding operation
- Up-Down control (option)
= steplessly welding current regulation from the torch trigger
- also has contact ignition as standard
Mains switch ON
Fig. 1 Principle of the thermostatic cut-out system
Welding current control
set to required value
Start of welding process
MANUAL ELECTRODE welding
- The HOT-START device enables the ignition process to be
adjusted (externally, via TPmc remote control unit; internally,
via program menu)
- Adjustment of welding characteristics possible via steplessly
adjustable arc force control on the TPmc remote control unit

CONSTRUCTION

The dimensions of the Fronius MAGIC WAVE 2000 Fuzzy resp.
TRANSTIG 2000 may be small, but the machine is sturdy enough
to function reliably even under the toughest working conditions.
With its powder-coated steel casing, protected control elements
and bayonet locking connecting sockets, this TIG-units are de-
signed to meet the most exacting requirements. The insulated
carrying handle makes the unit easy to move around, both within
the factory and e.g. out on building sites.
FUNCTIONAL SEQUENCE
The voltage from the 230V mains power supply is rectified. A rapid
transistor switching device inverts this DC voltage using a fre-
quency of 100 kHz. The welding transformer produces the requi-
red working voltage, which is rectified and fed to the output
sockets. An electronic controller (transistor inverter) adjusts the
power-source characteristic to suit the pre-selected welding pro-
cess.
Possible Applications
Fig. 2 MAGIC WAVE 2000 Fuzzy resp. TRANSTIG 2000 as a TIG welding unit
consisting of: power source, welding torch, earth cable and a choice of
remote control units (TR50mc, TR51mc, TR52mc, TPmc)
Fig. 3 MAGIC WAVE 2000 Fuzzy resp. TRANSTIG 2000 as a manual
ELECTRODE welding unit consisting of: power source, manual-electrode
welding cable, earth cable (TPmc manual remote control unit is optional)
Cooling switches ON
once temperature of 50°C has
been reached on primary or
secondary heat dissipator
Cooling switches OFF
once temperature of heat
dissipator sinks to 40°C
Thermostatic cut-out system
6
Welding current switches
OFF
once primary or secondary heat
dissipator reaches temperature
of 80°C
Cooling system continues
to run
Welding current switches ON
once heat dissipator temperature
sinks to 70°C