General Description / Initial Operation - Migatronic FOCUS TIG 160 DC HP PFC Instruction Manual

GENERAL DESCRIPTION
The FOCUS TIG 160 DC HP PFC is a single-phase welding
machine based on inverter technology.
Block diagram FOCUS TIG 160 DC HP PFC
FOCUS TIG 160 DC HP PFC machine is mainly designed for
TIG welding, and features functions such as:
- variable slope down
- variable gas post-flow time
- option of 2-times or 4-times operation
- LIFTIG or HF-ignition can be selected
- current control from the TIG torch handle-remote control
facility
- Digital display
The machine is designed also for welding with coated electrodes
and is equipped with Antifreeze function.
In LIFTIG ignition the TIG arc is ignited after making contact
between the workpiece and the tungsten electrode, after which
the trigger is activated and the arc established by lifting the
electrode away from the workpiece.
In HF ignition the TIG arc is ignited without contact.
A high-frequency (HF) impulse initiates the arc when the trigger
is activated.
INITIAL OPERATION
Mains connection
The machine must be connected to a mains supply and
protection earthing. After the mains plug has been connected to
the mains supply cable (1) the machine is ready for use. Please
note that all cable connections must be made by authorised and
qualified staff. Switch on and off the machine by means of the
breaker (2) on the rear of the machine.
Dispose of the product according to local standards
and regulations. More information can be found
under Policies at
Configuration
MIGATRONIC disclaims all responsibility for damaged cables
and other damages related to welding with undersized welding
torches and welding cables measured by welding specifications
e.g. in relation to permissible load.
Generator use
This welding machine can be used at all mains supplies
providing sine-shaped current and voltage and not exceeding
the approved voltage tolerances stated in the technical data.
Motorised generators observing the above can be used as
mains supply. Consult your supplier of generator prior to
connecting your welding machine. MIGATRONIC recommends
use of a generator with electronic regulator and supply of
minimum 1.5 x the maximum kVA consumption of the welding
machine. The guarantee does not cover damage caused by
incorrect or poor mains supply.
Important!
In order to avoid damage to plugs and
cables, good electric contact is required
when connecting the work return cable
and welding torch to the machine
Connection of welding cables
Connect the welding cables and the return current cable to the
front of the machine.
Please note that the plug must be turned 45 degrees after
insertion into the socket - otherwise the plug can be damaged
due to excessive contact resistance.
Always connect the TIG connection in the minus (-) socket (3)
and the return current cable in the plus (+) socket (4).
The control signals from the TIG torch are transformed to the
machine through the circular 7-pin plug (5). When the plug has
been assembled please secure it by turning the "circulator"
clockwise.
COATED ELECTRODES: Electrodes are marked with a polarity
on the packing. Connect the electrode holder in accordance with
this marking to the plus or minus sockets of the machine.
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