Operation; Front Panel - Firepower TIG 160S Service Manual

OPERATION

Conventional operating procedures apply when using
the Welding Power Source, i.e. connect work lead di-
rectly to work piece and electrode lead is used to hold
the electrode. The welding current range values should
be used as a guide only. Current delivered to the arc is
dependent on the welding arc voltage, and as welding
arc voltage varies between different classes of electrode,
welding current at any one setting would vary according
to the type of electrode in use. The operator should use
the welding current range values as a guide then fine
tune the welding current to suit the specific applica-
tion. Refer to the electrode manufacture's literature for
further information.

4.01 Front Panel

Front Panel
The welding power source is protected by a self re-
setting thermostat. The indicator will illuminate if the
duty cycle of the power source has been exceeded. If
the FAULT light illuminates wait for the FAULT light to
extinguish before resuming welding.
A. Process Selection Switch
Switches between LIFT TIG and STICK Welding modes.
B. Power On Indicator
The Power ON Indicator illuminates when the ON/OFF
switch is in the ON position and the nominal mains
voltage is present.
This switch controls the Mains Supply Voltage to the Power Source.
(B) Power On
Indicator
(C) Fault
Indicator
(A) Process
Selection
Switch
Manual 0-5371
SECTION 4:
OPERATION
Figure 4-1: Firepower 160 S Controls (US Version)
4-1
C. Fault Indicator
The welding power source is protected by a self resetting
thermostat and over primary current protection devices.
Welding can not take place if the Fault Indicator lights
up continuously or is flashing.
Thermostat Protection
If the Warning Indicator lights up continuously then
the duty cycle of the power source has been exceeded,
Leave the power on and wait for the Warning Indicator
to extinguish before resuming welding.
Over Primary Current Protection
If the Fault Indicator flashes on and off then the primary
current into the main transformer has been exceeded.
Have an Accredited Firepower Service Provider inspect
then repair the welder.
D. Welding Current Control
The welding current is increased by turning the Weld
Current control knob clockwise or decreased by turning
the Weld Current control knob counterclockwise. The
welding current should be set according to the specific
application. Refer to the electrode manufacture's litera-
ture for further information.
E. ON/OFF Switch (located on rear panel - not
shown)
FIREPOWER 160 S
(D) Welding
Current
Control
Art#: A-12711
Operation