Miller Dynasty 280 Series Owner's Manual page 53

Press AC Waveshape button until desired function is selected.
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Both Balance and AC Frequency LEDs light when either EN or EP Amperage is selected.
Parameter/Setting Display
Example
[EN] [150A]
[EP] [150A]
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See Section 7-3 for additional information on Accessing User Setup Menu. The [ACEN], [ACEP] option replaces the [AC] option.
Parameter/Setting Display
Example
[ACEN] [SOFT]
[ACEP] [SOFT]
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Complete Parts List is available at www.MillerWelds.com
AC Independent Amperage
Description
EN Amperage: Use with AC TIG only to select electrode negative amperage value.
EP Amperage: Use with AC TIG only to select electrode positive amperage value.
Average Amperage Control
Setting EN Amperage, EP Amperage, Balance, and Frequency values creates an average amperage.
The operator can change the average amperage value while maintaining the same EN amperage to EP
amperage ratio at the existing balance and frequency. To change the average amperage value, press the
Amperage button and turn the amperage adjustment control. The changing average value is displayed on
the ammeter. Example: If EN Amperage is 150, EP Amperage is 100, Balance is 75%, and Frequency is
120, the average amperage is 138 amps. If you press the Amperage button and turn the amperage adjust-
ment control until 69 amps is displayed, the EN amperage is now 75 and EP amperage is now 50. The
balance remains 75%, and the frequency is still 120, and the 1.5 to 1 EN amperage to EP amperage ratio
is maintained.
AC Independent Waveshape
Description
Press Gas/DIG button until [ACEN] is displayed. Press the Amperage button to toggle between [ACEN]
and [ACEP].
Use Amperage Adjustment control to select between advanced squarewave [ADVS], soft squarewave
[SOFT], sine wave [SINE], or triangle wave [TRI]. The default is [SOFT].
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