Power Source Features - Thermal Arc ARCMASTER 300S Service Manual

5
Pow er Sour ce Feat ures
Feature
Almost all welding parameters are
New Digital
adjustable.
Control
Touch switches eliminate
Touch Panel
mechanical damage.
Switches
Front Control
Protects front panel controls.
Cover
Displays selected weld parame-
ter value.
Displays weld current when weld-
ing.
Displays weld current for 20 sec-
Digital Meter
onds after weld has been com-
pleted.
A selected weld parameter value
can be adjusted at any time even
while welding.
The intelligent cooling system is
designed to reduce dust and for-
eign material build-up, while pro-
viding optimum cooling.
Fan speed reduces approximately
Intelligent
30 seconds after machine is
Fan Control
turned on.
Fan speed increases when inter-
nal components reaches operat-
ing temperature.
Primary voltage Supply ON/OFF
ON/OFF
switch located on rear panel.
switch
Reduces the OCV when the power
supply is not in use. Eliminates the
need for add on voltage reducers and
has no effect on arc starting.
Voltage
VRD fully complies to IEC 60974-1
Reduction
When Stick mode is selected the
Device (VRD)
green VRD light is ON when not
welding and red when welding.
When in TIG modes VRD is off.
For the selected weld parameter,
rotating the knob clockwise
increases the parameter.
Rotating the knob counter-clock-
wise decreases the parameter.
Control Knob
A selected weld parameter value
can be adjusted at any time even
while welding.
Pushing the knob in displays
actual arc voltage.
Description
4 – 6
300/ 400TS and 300/ 400S
Feature
Self An error code is displayed on the
Diagnosis Digital Meter when a problem
Using Error
occurs with Primary supply volt-
Codes
age or internal component prob-
lems. Refer to troubleshooting
guide.
Save/Load A total number of 5 programs can
function
be saved into the 300/400TS
( 300/ 400TS memory.
onl y)
SA VE t he C ur r ent W el d Par am et er s
i nt o M em or y.
Press the SAVE button.
Select a memory location by rotat-
ing the control knob, 1 to 5 is dis-
played on the meter.
After selecting the desired mem-
ory location (ie 1 to 5), press the
right scroll button and the
machine will give a beep to con-
firm the weld parameters from the
control panel are saved.
LO A D ( r et r i eve) a Pr ogr am t o C ont r ol
Panel .
Press the LOAD button.
Select a memory location by rotat-
ing the control knob, 1 to 5 is dis-
played on the meter.
After selecting the desired memory
location (ie 1 to 5), press the right scroll
button and the machine will give a beep
to confirm the weld parameters are
loaded onto the control panel.
Tabl e4-8: Pow er Sour ce Feat ur es
4
O PER A TO R C O N TR O LS
Description