Miller Electric 280 NT manual Operating Auxiliary Equipment, Extension cord

Page 34

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

SECTION 7 − OPERATING AUXILIARY EQUIPMENT

7-1. 60 Hz Generator Power Receptacles And Supplementary Protectors

 

 

 

 

!

If unit does not have GFCI re-

 

 

 

 

 

ceptacles, use GFCI-protected

 

 

4

 

 

extension cord.

 

 

 

NOTICE − Disconnect equipment

1

 

 

 

 

2

 

 

from auxiliary power receptacles dur-

 

 

 

 

ing start−up and shutdown. Some

 

 

 

 

equipment can be damaged by

 

 

 

 

changes in frequency as engine rpms

 

 

 

 

change during start-up and shut-

 

 

 

 

down.

 

 

 

 

. Weld output and 60 Hz generator

 

 

 

 

 

power output at receptacles RC1

 

 

 

 

 

and RC2 are not always available

 

 

 

 

 

at the same time. When welding,

 

 

 

 

 

generator power is available from

 

 

See Section

 

AC receptacle RC3 only (see

 

 

 

Section 7-2).

 

 

7-2for RC3

 

 

 

 

 

 

 

information.

. Generator power is available at

 

 

 

 

 

receptacles RC1 and RC2 only at

 

 

 

 

 

1800 rpm. If generator is not

 

 

 

 

 

locked at 1800 rpm, engine

 

 

 

 

 

speed increases in response to

 

 

 

 

 

weld load and generator power

 

 

 

 

 

output stops at receptacles RC1

 

 

 

 

 

and RC2. Generator power load

 

 

 

 

 

does not affect engine speed.

 

 

 

 

1

240 V 50 A AC Receptacle RC1

 

3

 

 

RC1 supplies 60 Hz single-phase

 

 

 

 

power at 1800 rpm. Maximum output

 

 

 

 

is 5 kVA/kW (20 A at 240 volts ac). For

 

 

 

 

60 Hz generator power at RC1, set

 

Controlling Engine Speed And Weld/Generator Power Output

controls as shown in table.

 

2

120 V 20 A AC Duplex

 

 

 

 

 

 

 

 

 

Receptacle RC2

Engine Controls

Generator Power

Weld Output

RC2 supplies 60 Hz single-phase

 

Engine Speed

Output

 

power at 1800 rpm. Maximum output

 

 

 

from RC2 is 2.4 kVA/kW (20 A at 120

Either

 

 

 

volts ac).

 

 

 

3

Supplementary Protector CB1

Run/Idle

1800 rpm

 

 

position.

 

 

CB1 protects receptacles RC1 and

 

(Power Speed)

 

Welding Not

 

 

RC2 from overload. If CB1 opens, the

 

Continuous

 

Recommended

 

5 kW/kVA Total From

receptacles do not work. Place switch

 

 

 

 

 

All AC Receptacles

 

in On position to reset.

 

 

 

 

 

 

 

 

 

4

Supplementary Protector CB2

 

No Load: 2400 rpm

 

 

CB2 protects RC2 from overload. If

 

 

3600 rpm:

CB2 opens, the receptacle does not

 

(Idle Speed)

 

work. Press button to reset.

 

Load: 3600 rpm

 

20 − 300 A

. If supplementary protector con-

 

2.4 kW/kVA at 60-120

 

 

(Weld Speed)

 

 

Hz From AC

 

 

tinues to open, contact Factory

 

 

 

 

 

 

Receptacle RC3 Only

 

 

Authorized Service Agent.

 

 

 

 

Combined output of all receptacles

 

 

 

 

limited to 5 kVA/kW continuous rating

 

 

 

 

of the generator.

 

 

 

 

EXAMPLE: If 10 A is drawn from 120

 

No Load: 1800 rpm

 

 

V duplex receptacle RC2, only 16 A is

 

5 kW/kVA Total From

 

available at 240 V receptacle RC1.

 

(Idle Speed)

All AC Receptacles

3000 rpm:

(120 V x 10 A) + (240 V x 16 A) = 5

 

Load: 3000 rpm

 

At 1800 rpm.

20 − 220 A

kVA/kW

 

(Weld Speed)

At 3000 rpm, Output

 

 

 

 

 

 

 

 

 

 

Available Only At 2.4

 

 

 

 

 

kW/kVA 60-120 Hz AC

 

 

 

 

 

Receptacle RC3

 

 

 

 

 

 

 

 

Ref. 211 909

OM-4430 Page 30

 

 

 

 

 

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Contents Description OM-4430217 243RProcesses File Engine DriveFrom Miller to You Table of Contents − Maintenance & Troubleshooting Electric Shock can kill Symbol UsageArc Welding Hazards HOT Parts can cause severe burnsARC Rays can burn eyes and skin Fumes and Gases can be hazardousBuildup of GAS can injure or kill Welding can cause fire or explosionEngine Hazards Compressed Air HazardsFire or Explosion hazard Welding Wire can cause injuryHOT Parts can cause burns and injury Falling Unit can cause injuryEMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings Radiation can cause interferenceUN Choc Électrique peut tuer Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation Indique des instructions spécifiquesLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion ’EXPLOSION DE LA Batterie peu LE Bruit peut affecter l’ouïeDES Organes Mobiles peuvent pro voquer des blessures ’AIR Comprimé peut provoquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendieRisque D’INCENDIE OU D’EXPLO- Sion LES Fils DE Soudage peuvent provoquer des blessures LE Surchauffement peut endom- mager le moteur électriqueDES Organes Mobiles peuvent provoquer des blessures ’EMPLOI Excessif peutInformation EMF Proposition californienne 65 AvertissementsPrincipales normes de sécurité En ce qui concerne les implants médicauxSymbol Definitions − DefinitionsDimensions, Weights, and Operating Angles − SpecificationsWeld, Power, And Engine Specifications DescriptionRPM Weld Dimensions For Units With Optional Running GearFuel Consumption While Welding And Using Generator Power 1800 RPMGenerator Power Curve AC AmperesDuty Cycle TIG Mode Volt-Ampere Curves100% Duty Cycle at 280 Amperes DC/CC CC/DC Stick Mode Stick And MIG Mode Volt-Ampere CurvesCV/DC MIG Mode − Installation Installing Welding GeneratorEngine Prestart Checks Oil+ − Connecting Or Replacing The BatteryReplacing The Battery Connect negative − cable lastTools Needed 1/2 Installing Exhaust PipeStop engine and let cool Failure to properly connect Connecting To Weld Output TerminalsStop engine Damage your machineSelecting Weld Cable Sizes Remote Receptacle Information− Operating Welding Generator Front Panel ControlsInfrequently Description Of Engine Controls See SectionCold Weather Engine Operation LoadedControlling Engine Speed And Weld/Generator Output Wire Position Process SwitchProcess Switch Settings Stick PositionsLift-Arc t TIG Stick Start Procedure − Scratch Start TechniqueTIG Lift-ArcStart Procedure TIG Electrode WorkpieceConnect Remote Set Process Remote Voltage/Amperage ControlMin 20 a DC Stick Welding Only− Operating Auxiliary Equipment Hz Generator Power Receptacles And Supplementary ProtectorsControlling Engine Speed And Weld/Generator Power Output Extension cordPress button to reset. If supple Variable Frequency Hz Generator Power Receptacle RC3Rized Service Agent Current Available in Amperes Receptacle100 − Maintenance & TroubleshootingRoutine Maintenance 200Maintenance Label Servicing Air Cleaner Servicing Optional Spark ArrestorChanging Engine Oil, Oil Filter, And Fuel Filter Overload Protection Open left side doorWelding TroubleshootingTrouble Remedy Check receptacle wiring and connections Hz Generator Power Receptacles RC1 And RC2Variable Frequency Generator Power Receptacle RC3 Necessary partsCheck engine charging system according to engine manual Engine starts but stops when EngineEngine Od of timeRecommended Spare Parts − Parts ListRecommended Spare Parts − Electrical Diagrams Circuit Diagram For Welding Generator Models232 961-A Grounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesSelecting Equipment Electrically Bond GeneratorUse ground device as stated in electrical codes Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Amperes x Volts = WattsIndustrial Motors Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Farm/Home Equipment Rating Starting Watts Running WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsSingle-Phase Induction Motor Starting Requirements Power Required To Start MotorHow Much Power Can Generator Supply? KVA/HP x HP x 1000 / Volts = Starting AmperageTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible SOCKET/WRENCH Selection Table Standard Metric Welding Symbols Page Page Your distributor also gives ServiceSupport 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
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