Input Power; High Frequency Introduction - Thermal Arc 160 TS ARCMASTER Service Manual

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. At
this point, the Bus Voltages are checked and the welder is enabled after the input capacitors have
charged to full operating voltage (approximately 5 seconds).
Note the available input power. Damage to the welder could occur if 460VAC 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:
Model
ARC
MASTER
160TS
Table 3-2: 208-230V Primary Current Circuit sizes to achieve maximum current
The ARC MASTER 160TS 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.
Primary Supply Minimum Primary
Lead Size Current Circuit Size
(Factory Fitted)
12/3 AWG
minimum
Note
(Vin/Amps)
115/23 85 @ 100%
208/28
160 @ 35%
230/25
115/40
208/44
230/39
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.
19
ARCMASTER 160TS
Current & Duty Cycle
TIG STICK
-
-
-
- 85 @ 100%
-
160 @ 35%
-