Lincoln Electric IM709 manual Welder Operation, Auxiliary Power Operation, Duty Cycle

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B-3

OPERATION

B-3

 

 

 

WELDER OPERATION

DUTY CYCLE

Full output and duty cycle may not be obtained from all power sources. The output and duty cycle may be limited by the 40 amp input power limitation of the Demo Zone. The duty cycle of the power source must be adjusted to be within the capability of the 40 amp input supply.

Duty cycle is based upon a ten minute period. A 10% duty cycle represents 1 minute of welding and 9 min- utes of idling in a ten minute period.

Some examples of allowable duty cycles of the Demo Zone are given. If the duty cycle or input currents exceed the capability of the 40 amp circuit breaker, the breaker will trip off. For lower output currents, the duty cycle is extended from what is listed.

V350-PRO

 

 

200A at 28v

100% duty cycle

41A input

275A at 31V

10% duty cycle

62A input

Power MIG 255 (machine limited)

 

200A at 28v

60% duty cycle

37A input

250A at 30v

40% duty cycle

46A input

Pro Cut 55

 

 

55A

15% duty cycle

55A input

Square Wave TIG 175

 

150A

10% duty cycle

65A input

AUXILIARY POWER OPERATION

Duty cycle and maximum current may be less than rated value if the power sources are powered from the Ranger 250.

(Refer to Ranger 250 Operator’s Manual).

DEMO ZONE

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Contents Safety Depends on You Demo ZoneSafety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Table of Contents Installation Voltage Specification Input Connection SpecificationOutput Cables Connections Safety PrecautionsInput and Grounding Connections Installation of Field Installed Options Caster Wheels Part of K1848-1Welding Smoke and Fume LocationEngine Exhaust StackingRecommended Processes and Equipment OperationGeneral Description Recommended Equipment / Interface Design FeaturesAdditional Safety Precautions Regulatory RequirementsDuty Cycle Auxiliary Power OperationWelder Operation Field Installed Options / Accessories AccessoriesFactory Installed Options / Accessories Periodic Maintenance MaintenanceRoutine Maintenance Perform the following daily routineTroubleshooting Demo Zone Wiring Diagram DiagramsDemo Zone Precaucion Warnung