Migatronic FOCUS TIG 160 DC HP Manuel D'instruction page 12

GENERAL DESCRIPTION
The FOCUS TIG 160 DC HP is a single-
phase welding machine based on
inverter technology.
Block diagram FOCUS TIG 160 DC HP
SWITCH
REGU-
DRIVER
LATOR
CONTROL
The FOCUS TIG 160 DC HP 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 opera-
tion
- 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 work-
piece 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 con-
nected 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.
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REF
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.
Warning
Connection to generators can damage the welding machine.
When connected to a welding machine, generators can
produce large voltage pulses, which can damage the welding
machine. Use only frequency and voltage stable generators
of the asynchronous type.
Defects on the welding machine arisen due to connection
of a generator are not included in the guarantee.
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.
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