Tweco 300 S Arcmaster - Manual (Page 31)

ARCMASTER ® 300 S
March 31, 2006 6-1
SECTION 6:
SEQUENCE OF OPERATION
NOTE: Scroll Buttons are used to select the parameters to be set. The LED’s show which function
is being adjusted on the weld sequence graph. Refer to Symbols Table located in the front of the
manual for Symbol descriptions.
1
2
3
4
5
6
Figure 7 – 300 S Front Panel
1. Scroll Buttons – used to select the parameter to be set.
The LED’s show which function is being adjusted on the
Sequence Graph.
2. Digital LED display – Welding amperage and parameter
values are displayed in this window. Internal warnings
such as over temperature, low or high input voltage
applied are signaled to the operator by a warning sound
and error message on the screen.
3. Control knob – allows the operator to adjust the output
amperage within the entire range of the power source,
also used to set each parameter value.
4. Process Button – This button selects between STICK or
Lift TIG mode.
5. Contactor function – Pressing this buttons enables
Contactor functions.
6. Remote Current function – Pressing this buttons enables
remote current functions.
6.01 Stick Welding
• Connect work lead to negative terminal
• Connect electrode lead to positive terminal
• Switch machine on
• Set Contactor
• Connect remote control device if required
Use the Scroll Buttons to move to the parameter to be set.
The LED will show which function is being adjusted on the
weld sequence graph. Use the control knob to adjust each
parameter.
• Set HOT START
• Set WELD current
• Set Arc Control
Commence welding
6.02 DC LIFT TIG Welding
• Connect work lead to positive terminal
• Connect TIG torch to negative terminal
• Switch machine on
• Set weld current.
• Connect remote control device if desired
Use the Scroll Buttons to move to the parameter to be set.
The LED will show which function is being adjusted on the
weld sequence graph. Use the control knob to adjust each
parameter.
• Set WELD current
Commence welding