Tweco ArcMaster 201 TS, Service Manual

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OPERATION TWECO 201TS
Manual 0-5150 4-3 Operation
H. 8 Pin Control Socket
The 8 pin Torch Trigger Socket is used to connect the
TIG Torch Trigger Switch to the welding Power Source.
To make connections, align keyway, insert plug, and
rotate threaded collar fully clockwise.
Art # A-09815_AB
1 2 3 4 5 6 7 8
5
k Ohms
2 1
5 4 3
8 7 6
Front View of 8 Pin Socket
Plug Pin Function
1
2
Torch Switch Input (24V) to energize
weld current. (connect pin 2&3 to turn on
welding current)
3 Torch Switch Input (0V) to energize weld
current. (connect pin 2&3 to turn on
welding current)
4
5
5k ohm (maximum) connection to 5k ohm
remote control potentiometer
6 Zero ohm (minimum) connection to 5k
ohm remote control potentiometer
7 Wiper arm connection to 5k ohm remote
control potentiometer
8
NOTE
Remote Welding Current Control is not available on
this model.
I. ON/OFF Switch (located on rear panel not shown)
This switch controls the Mains Supply Voltage to the
Power Source.
4.02 Setup for Welding
NOTE
Conventional operating procedures apply
when using the Welding Power Source, i.e.
connect work lead directly to work piece and
electrode holder and lead is connected to the
electrode. Wide safety margins provided by
the design ensure that the Welding Power
Source will withstand short-term overload
without adverse effects. 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 electrodes, 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 application.
WARNING
Before connecting the work clamp to the
work and inserting the electrode in the elec-
trode holder make sure the Primary power
supply is switched off.
CAUTION
Remove any packaging material prior to use.
Do not block the air vents at the front or rear
of the Welding Power Source.