Ac Independent Expansion - Miller Dynasty 280 Series Owner's Manual

[RMT] [2T]
Parameter/Setting Display
[ENEP] [SAME]
[ENEP] [INDP]
Parameter/Setting Display
[AC] [WAVE]
Parameter/Setting Display
[HOTS] [ON]
[HOTS] [OFF]
7-4.

AC Independent Expansion

A. AC Independent Waveshape
4
USER
SECTION 5
5-1. Maxstar 280 Controls
OM-253086 Page 44
1
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Complete Parts List is available at www.MillerWelds.com
Output Trigger Mode Functions
See Section 10-4 to reconfigure RMT functions.
Independent Amperage Control (CE Models Only)
Description
Standard mode of operation for controlling AC amperage setting.
For AC TIG welding allows the user to set the EP amperage independently from the EN amperage. When
[ON], the user can set the EP waveshape (sine, square, triangle) independently from the EN waveshape
(see Section 7-4).
AC Waveshape Selection
Description
Use amperage adjustment control to select between advanced squarewave [ADVS], soft squarewave
[SOFT], sine wave [SINE], or triangle wave [TRI]. The default is Soft.
Application: Use advance squarewave when a more focused arc is required for better directional control.
Use soft squarewave when a softer arc with a more fluid puddle is desired. Use sine wave to simulate a
conventional power source. Use triangular waveshape when the effects of peak amperage with reduced
overall heat input is required to help control distortion on thin materials.
Arc Starting Method Selection
Description
Provides additional amperage while striking the electrode to prevent the electrode from sticking.
No additional starting amperage to assist in starting the electrode.
A complete Parts List is available at www.MillerWelds.com
5
6
MENU
MAXSTAR 280 OPERATION
4
1
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1 Amperage Button
2 AC Waveshape Button
3 Gas/DIG Button
4 Parameter Display
5 Setting Display
6 Amperage Adjustment Control
3 2
280589-A
3
5
AC Independent Expansion is available
on DX models with SD expansion card
and on CE models with feature enable
through the user menu (see Section 7-
3).