Miller Electric Auto Axcess 675 manual Duty Cycle And Overheating, Volt-Ampere Curves

3-3. Duty Cycle And Overheating

Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating.

If unit overheats, thermostat(s) opens, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle before welding.

NOTICE − Exceeding duty cycle can damage unit and void warranty.

100% Duty Cycle At 675 Amperes

Continuous Welding

Overheating

0	A/V
	15
	OR
Minutes	Reduce Duty Cycle

											duty1 4/95 − 206 789-A
3-4.	Volt-Ampere Curves
						CV MODE					Volt-ampere curves show minimum
											and maximum voltage and amper-
											age output capabilities of unit.
	80										Curves of other settings fall be-
											tween curves shown.
	70										. This volt-ampere curve repre-
											sents the dynamic output of the
	60										unit with a static load.
VOLTAGE	50
	40
	30
	20
	10
	0
	0	100	200	300	400	500	600	700	800	900	1000
						AMPERES
											va_curve1 4/95 − 221 502-A
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