ESAB Cutmaster 80 - Page 63

ESAB CUTMASTER 80
Manual0-5396 INTRODUCTION
2T-3
B. Gas Distribution
The single gas used is internally split into plasma
and secondary gases.
The plasma gas ows into the torch through the
negativelead,throughthestartercartridge,around
theelectrode,andoutthroughthetiporice.
Thesecondarygasowsdownaroundtheoutside
ofthetorchstartercartridge,andoutbetweenthe
tip and shield cup around the plasma arc.
C. Pilot Arc
When the torch is started a pilot arc is established
between the electrode and cutting tip. This pilot arc
creates a path for the main arc to transfer to the work.
D. Main Cutting Arc
DC power is also used for the main cutting arc. The
negativeoutputisconnectedtothetorchelectrode
throughthetorchlead.Thepositiveoutputiscon-
nectedtotheworkpieceviatheworkcableandto
the torch through a pilot wire.
E. Parts - In - Place (PIP)
The torch includes a 'Parts - In - Place' (PIP) circuit.
Whentheshieldcupisproperlyinstalled,itcloses
a switch. The torch will not operate if this switch is
open.
A-02997
Torch Trigger
PIP Switch
Shield Cup
To Control
Cable Wiring
Torch Switch
Parts - In - Place Circuit Diagram for Hand Torch
PIP Sw itch
Sh ield Cup
To AT C
CNC Start
PIP Sw itch
Sh ield Cup
PIP Sw itch
Sh ield Cup
Remote Pendant
Automation To rch
To AT C
To AT C
Art # A-08168
Parts - In - Place Circuit Diagram for Machine Torch