Duty cycle and overheating, 2. duty cycle and overheating – Miller Electric DVI-2 R User Manual

Page 16

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A complete Parts List is available at www.MillerWelds.com

OM-232 386 Page 12

4-2.

Duty Cycle And Overheating

Duty Cycle is percentage of 10
minutes 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 or gun and void
warranty.

Overheating

A or V

OR

Reduce Duty Cycle

duty1 4/95 − 124 655 / 220 896-A

A. 115 VAC

B. 230 VAC

20% duty cycle at 90 amps

40% duty cycle at 150 amps

4 Minutes Welding

6 Minutes Resting

2 Minutes Welding

8 Minutes Resting

0

15

Minutes

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