Tweco 200 ACDC Arcmaster(April2006) - Manual (Page 23)

ARCMASTER 200 AC/DC
April 13, 2006 3-3
3.05 Input Power
Each unit incorporates an INRUSH circuit and input voltage sensing circuit. When the MAIN CIRCUIT SWITCH is
turned on, the inrush circuit provides a pre-charging of the input capacitors. SCR’s in the Power Control Assembly
(PCA) will turn on after the input capacitors have charged to full operating voltage (after approximately 5 seconds).
NOTE
Note the available input power. Damage to the PCA could occur if 400VAC or higher is applied.
The following 208/230V Primary Current recommendations are required to obtain the maximum welding current and
duty cycle from this welding equipment:
The ARC MASTER 200 AC/DC is designed for use with a generator as an input power source. Contact an accredited
Thermal Arc service agent for the proper sizing and set-up recommendations of a generator power source system. As
a general rule, depending on the type of generator used, the generator capacity should be twice the maximum rating
of the welder.
3.06 High Frequency Introduction
The importance of correct installation of high frequency
welding equipment cannot be over-emphasized.
Interference due to high frequency initiated or stabilized
arc is almost invariably traced to improper installation.
The following information is intended as a guide for
personnel installing high frequency welding machines.
!
WARNING: EXPLOSIVES
The high frequency section of this machine
has an output similar to a radio transmitter.
The machine should NOT be used in the
vicinity of blasting operations due to the
danger of premature firing.
!
WARNING: COMPUTERS
It is also possible that operation close to
computer installations may cause computer
malfunction.
TIG STICK
230/33 200 @ 30%
230/38 - 160 @ 40%
Minimum Primary
Current Circuit Size
(Vin/Amps)
Current & Duty Cycle
2.5mm sq/3
minimum
ArcMaster
200 AC/DC
Model
Primary Supply
Lead Size
(Factory Fitted)
Table 3-2: 230V/ Primary Current Circuit sizes to achieve maximum current