Miller Electric XMT 400 manual Specifications, Duty Cycle And Overheating

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SECTION 4 − INSTALLATION

4-1. Specifications

			Maximum		Amperes Input
Rated Welding	Voltage	Amperage	Maximum		at Rated Load
Rated Welding	Voltage	Amperage	Open-Circuit	IP Rating	Output 50/60 Hz
Output	Range	Range	Open-Circuit	IP Rating	Output 50/60 Hz
Output	Range	Range	Voltage DC
			Voltage DC		400 V	KVA	KW
					400 V	KVA	KW

300 A @					17.0	12.4	11.5
32 Volts DC,	10 − 35	5 − 400	90	23	17.0	12.4	11.5
32 Volts DC,	10 − 35	5 − 400	90	23	(0.15*)	(0.09*)	(0.04*)
60% Duty Cycle					(0.15*)	(0.09*)	(0.04*)
60% Duty Cycle

*While idling

4-2. Duty Cycle And Overheating

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

If unit overheats, output stops, a Help message is displayed (see Section 6-3), and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle be- fore welding.

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

60% Duty Cycle

6 Minutes Welding

4 Minutes Resting

Overheating

0	A
	15
	OR
Minutes	Reduce Duty Cycle
Minutes

Ref. SA-178 651

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Contents Description OM-217 769LProcesses File MultiprocessFrom Miller to You Table of Contents Page Electric Shock can kill Symbol UsageArc Welding Hazards HOT Parts can cause severe burnsWelding can cause fire or explosion Fumes and Gases can be hazardousARC Rays can burn eyes and skin Flying Metal or Dirt can injure eyesFalling Unit can cause injury Welding Wire can cause injuryFire or Explosion hazard Moving Parts can cause injuryEMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings About Implanted Medical DevicesSymboles utilisés UNE Décharge Électrique peut entraîner la mortDES Pièces Chaudes peuvent provoquer des brûlures graves LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un in cendie ou une explosion Risque D’INCENDIE OU D’EXPLO- Sion LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées LA Chute DE L’APPAREIL peut blesserProposition californienne 65 Avertissements LES Fils DE Soudage peuvent provoquer des blessuresLE Soudage À L’ARC risque de provoquer des interférences Principales normes de sécurité Information EMFEn ce qui concerne les implants médicaux OM-217 769 Disconnect input plug or power before working on machine Manufacturer’s Warning Label DefinitionsKeep your head out of the fumes 60 s I1max Symbols And DefinitionsManufacturer’s Rating Label I1effSpecifications Duty Cycle And OverheatingCC Mode CV ModeVolt-Ampere Curves Dimensions And Weight Selecting a Location350 ft 400 ft Put terminals Weld Output Terminals And Selecting Cable SizesARC Welding can cause Electromagnetic Interference Output ReceptaclesElectrical Service Guide Remote 14 Receptacle InformationConnecting 3-Phase Input Power To a line terminal For Three-Phase OperationYellow Conductor Front Panel Controls Power On/Off SwitchSelect setting best suited for application Inductance/Dig ControlMeter Functions Mode Switch Settings Lift-Arc TIG Procedure Touch Seconds Do not Strike Like a MatchDo not remove case when blowing out inside of unit Blowing Out Inside Of UnitVoltmeter/Ammeter Help Displays Reset circuit breaker CB1 TroubleshootingCheck, repair, or replace remote control Remote 14 receptacle− Electrical Diagram − Parts List Dia Part Description Quantity PC3 219 Service Your distributor also givesSupport For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitMiller Electric Mfg. Co Your distributor and/or equipment manufacturer’s