Generator Power Guidelines | Miller Electric Miller DU-OP manual

SECTION 11 − GENERATOR POWER GUIDELINES

NOTE

The views in this section are intended to be representative of all engine-driven welding generators. Your unit may differ from those shown.

11-1. Selecting Equipment

1 Generator Power Receptacles

− Neutral Bonded To Frame

2 3-Prong Plug From Case

Grounded Equipment

3 2-Prong Plug From Double

Insulated Equipment

Y Do not use 2-prong plug un- less equipment is double in- sulated.

1

2

		3
	OR	Be sure equipment
	OR	has this symbol
		has this symbol
		and/or wording.

gen_pwr 11/02 − Ref. ST-159 730 / ST-800 577

11-2. Grounding Generator To Truck Or Trailer Frame

1

GND/PE2

3

Electrically bond generator frame to vehicle frame by metal-to-metal contact.

YBed liners, shipping skids, and some running gear insulate the welding generator from the ve- hicle frame. Always connect a ground wire from the generator equipment grounding terminal to bare metal on the vehicle frame as shown.

YAlways ground generator frame to vehicle frame to pre- vent electric shock and static electricity hazards.

1Equipment Grounding Terminal (On Front Panel)

2Grounding Cable (Not Supplied)

3Metal Vehicle Frame

Connect cable from equipment ground terminal to metal vehicle frame. Use #10 AWG or larger insulated copper wire.

YIf unit does not have GFCI re- ceptacles, use GFCI-pro- tected extension cord.

S-0854

OM-494 Page 51

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Miller Electric Miller DU-OP manual Generator Power Guidelines, Selecting Equipment, Has this symbol, And/or wording

Contents

Visit our website at OM-494191 862Q September ProcessesDescription File Engine Drive From Miller to You Table of Contents − Operating Auxiliary Equipment Arc Welding Hazards Symbol Usage Engine Hazards Compressed Air Hazards Radiation can cause interference Principal Safety StandardsCalifornia Proposition 65 Warnings EMF Information LES Fumées ET LES GAZ peuvent être dangereux Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation UN Choc Électrique peut tuer LE Bruit peut affecter l’ouïe LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures graves LE Surchauffement peut endom- mager le moteur électrique LA Chaleur DU Moteur peut pro- voquer un incendie’AIR Comprimé peut provoquer des blessures ’EMPLOI Excessif peut Boulevard, Rexdale, Ontario, Canada M9W 1R3 téléphone LE Soudage À L’ARC risque de provoquer des interférencesPour les moteurs à essence Pour les moteurs diesel − Definitions Symbols And Definitions Description − SpecificationsWeld, Power, And Engine Specifications Dimensions, Weights, And Operating Angles Fuel Consumption AC Generator Power Reduce Duty Cycle Minutes Exceeding duty cycle can damage unit and void warrantyDuty Cycle And Overheating Overheating Volt-Ampere Curves CC/DC − Single ModeCC/DC − Dual Mode CV/DC Mode Installing Welding Generator − Installation For 30 Minutes Activating The Dry Charge Battery If ApplicableConnecting The Battery Do not overfill battery cells Fuel Installing Exhaust PipeEngine Prestart Checks Stop engine and let cool Welder a Left Side Welder B Right Side Safety Information For Connecting To Weld Output TerminalsWeld Output Terminals Unexpected Weld Output can cause injury or fire Do not exceed machine duty cycle Welder a Left Side Connect electrode holder cables to Elec- trode receptacles Stop engine Do not exceed machine duty cycle Switches are set correctly. See Section Place optional Polarity switches in ReVerse position when using CV weld re When switch is in Straight position Connect wire feeder cables to CV recep- tacles Connect wire feeder cables to Negative − terminals Be sure Process Selector switches are Place optional Polarity switch in Re Making Single Operator CC Weld Connections OM-494 Put terminals Selecting Weld Cable Sizes150 ft 200 ft 250 ft 350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Socket Information Installing Ether Cylinder Optional Ether Starting AidAfter installing cylinder, wait at Remote 14 Receptacle Information Dual Operator Operation Remote 14 Receptacle Connections If light goes on, stop engine and check engine belt − Operating the Welding GeneratorEngine Controls See -3for weld control descriptions Weld Controls See Section CV weld output for MIG is only available Do not switch under load or with out- put onDo not switch under load Weld Control Descriptions See Section At least once a month, run engine at Generator power is not affected by weld output− Operating Auxiliary Equipment Volt And 240 Volt Duplex Receptacles Routine Maintenance − Maintenance & Troubleshooting Maintenance Label Do not clean housing with air hose Servicing Air CleanerBy the warranty To clean air filter Servicing Fuel And Lubrication Systems Cylinder Adjusting Engine SpeedWeld/Power Servicing Optional Ether Starting Aid Stop engine To check belt tension To adjust belt tensionChecking And Replacing Alternator Belt Max Tools Needed 11/16 Resetting Fan Belt Safety Shutdown Stop engine and let cool. Reinstall cleanout plug Inspecting And Cleaning Optional Spark Arrestor MufflerChecking Generator Brushes Thermostats TP3 And TP4 Internal − Not Shown Circuit Protection Welding Troubleshooting Formers T5 thru T10, and control board PC1 or PC5 Factory Authorized Service Agent check main rectifier SR2Factory Authorized Service Agent check main rectifier SR3 Repair or replace wire feeder Engine Generator Power OM-494 Circuit Diagram For Welding Generator − Electrical Diagrams 210 657-A Wetstacking − RUN-IN ProcedureMent damage may occur Ing run-in add oil if needed Run-In Procedure Using Load Bank4exceed duty cycle or equip- ment damage may occur Check oil level frequently dur From flammables Run-In Procedure Using Resistance GridProcedure at less than Bank/grid Grounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesHas this symbol Selecting Equipment Use ground device as stated Electrical codes Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Earth ground if supplying Farm/Home Equipment Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Industrial Motors Rating Starting Watts Running Watts Contractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor Equipment KVA/HP x HP x 1000 = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting Requirements Typical Connections To Supply Standby Power Current Load Watts Amperes Selecting Extension Cord Use Shortest Cord Possible 96−SEE FIG 92 91 103 102 101 100 25−SEE FIG 910 − Parts List 4748 57−SEE FIG 78−SEE FIG 76 75 Item Dia Part Description Quantity Mkgs 189 Front Panel Front Panel -1Item Side Control Panels − Welder B Right Side Shown Side Control Panels -1Item Side Control Panels Generator Rectifier Assembly OM-494 Page Your distributor also gives ServiceSupport Your distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact