Miller Electric Big Blue 302P, Big Blue 452P manual Three-Phase Power Connection, Rear Of Panel

Page 45

8-2. Connecting To Optional Three-Phase Generator (CC/CV Models Only)

				. Place Process/Contactor switch
				in Electrode Hot - Stick position
				when using three-phase genera-
	Single-Phase Power Connection	1	2	tor (see Section 7-3).
	Single-Phase Power Connection	1	2	Single-Phase Generator Power
				Single-Phase Generator Power
				1 120/240 V 50 A Receptacle
				RC5
				RC5 is connected to the optional
				three-phase generator and supplies
				60 Hz single-phase power at weld/
				power speed. Maximum output from
				RC5 is 12 kVA/kW. Power available
				at RC5 is reduced when welding.
				2 Circuit Breaker CB7
				Circuit breaker CB7 protects single-
				phase receptacle RC5 and the load
				wires from overload. If CB7 opens, all
				generator output stops and the recep-
				tacle does not work.

Three-Phase Power Connection

Y Close panel opening if no connections are made to generator.

	AC	Single	Three
	AC	Phase	Phase
	Output	Phase	Phase
		1	3
	Volts	120/240	240

	Amps	50	36
	KVA/KW	12	15
	Frequency	60 Hz
	Engine Speed	1850 RPM

Lead 42 connects to GROUND stud on front of unit.

Jumper 42 is connected to 90 at factory.

Three-Phase Generator Power

YStop engine.

YPower and weld outputs are live at the same time. Discon- nect or insulate unused cables.

.Have qualified person install ac- cording to circuit diagram and Generator Power Guidelines (see Section 12).

Remove generator power panel mounting screws. Tilt panel forward.

Remove plug before inserting leads. Reinstall bushing.

Rear Of Panel

5

93 3 Lead 93

914 Lead 92

5 Lead 91

906 Lead 42 (Circuit Grounding Lead)

927 Lead 90 (Neutral)

4

8 Isolated Neutral Terminal

6

7

9

8

91

92

93

240V

120V	1-Phase
120V
	240V
240V	3-Phase

3

2

12

10

11

Y Close panel opening if no connections are made to generator.

Tools Needed:

9Jumper Lead 42

10Grounding Terminal

Jumper 42 is connected to lead 90 at factory. Jumper 42 may be discon- nected from neutral to meet applica- ble electrical codes.

Lead 42 connects to front panel Ground stud.

11User-Supplied Leads

12Circuit Breaker CB7 User Terminals

Connect user-supplied leads to ter- minals on CB7 and to the isolated neutral terminal and grounding termi- nal as necessary.

.Circuit breaker CB7 protects single-phase receptacle RC5 and the load wires from overload. If CB7 opens, all generator out- put stops and the receptacle does not work.

Reinstall generator power panel.

240V

Ref. 197 399 / 802 332-E

Return To Table Of Contents

OM-496 Page 39

Image 45

Contents OM-496 ProcessesDescription From Miller to You Table of Contents 11-1 11-211-3 Directives StandardsDeccon1 11/02 Deccon1 5/98 Sound Level InformationArc Welding Hazards Symbol UsageEngine Hazards Compressed Air Hazards California Proposition 65 Warnings Principal Safety StandardsEMF Information Radiation can cause interference− Consignes DE Sécurité − Lire Avant Utilisation Signification des symbolesUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un in- cendie ou une explosionDES Pièces Chaudes peuvent provoquer des brûlures graves LE Bruit peut affecter l’ouïeDES Organes Mobiles peuvent provoquer des blessures ’EXPLOSION DE LA Batterie peutLA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoque r des blessuresInformation sur les champs électromagnétiques Principales normes de sécurité− Definitions Starting Instructions + −Hot muffler and exhaust pipes Are possible hazards asCan cause severe burns. Do EngineReturn To Table Of Contents − 50 h Std Manufacturer’s Rating Labels For CE ProductsStd CC Models CC/CV ModelsSymbols And Definitions − Specifications Weld, Power, And Engine SpecificationsDimensions, Weights, And Operating Angles Volt-Ampere Curves For CC Models MIG Mode Stick ModeTIG Mode Volt-Ampere Curves For CC/CV ModelsDuty Cycle And Overheating Fuel ConsumptionOptional Three-Phase Generator Curves AC Generator Power Curve12 kVA/kW Single-Phase AC Output No Weld Load 15 kVA/kW Three-Phase AC Output No Weld LoadInstalling Welding Generator See Sections 5-2And − InstallationLocation Grounding Airflow ClearanceWork like a Pro Using Lifting EyeSupporting The Unit Mounting Welding GeneratorMounting Surface To Bolt Unit In PlaceStop engine and let cool Installing Exhaust PipeWhen electrolyte is low, add Activating The Dry Charge Battery If ApplicableRead and follow all instruc ChargerConnecting The Battery Reinstall cover after connecting batteryConnect Negative − Cable Last Engine Prestart Checks Coolant Recovery TankSelecting Weld Cable Sizes Connecting To Weld Output TerminalsRef 862-A / 048 720-K / 802 Socket Connecting To Remote 14 Receptacle RC14 On CC/CV ModelsFront Panel Controls For CC Models See Section − Operating Welding Generator − CC ModelsEngine Indicator Lights To Start Do not use ether. Using ether voids warrantyDo not switch under load Engine Starting ControlsWeld Control/Arc Condition Information Label Remote Amperage Control On CC Models OptionalExample Combination Remote Amperage Control Stick Set weld controls as shown toReturn To Table Of Contents Front Panel Controls For CC/CV Models See Section − Operating Welding Generator − CC/CV ModelsVoltage/Amperage Adjust Switch And Remote 14 Receptacle Use switch to select weld amperage rangeProcess/Contactor Switch Settings Process/Contactor Switch On CC/CV ModelsExample Combination Remote Amperage Control TIG Remote Voltage/Amperage Control On CC/CV Models OptionalVolt And 240 Volt Receptacles − Operating Auxiliary EquipmentAt least once a month, run en Open, contact Factory AuthoThree-Phase Power Connection Rear Of PanelClose panel opening if no connections are made to generator Optional Generator Power Receptacles 240 V 15 a AC South African Receptacle RC1Circuit Breaker CB2 Circuit Breaker CB3 − Maintenance & Troubleshooting Maintenance LabelsFor Non-CE Products Every 8 h Routine MaintenanceEvery 50 h Every 100 hEvery 1000 h Clean/Set InjectorsEvery 2000 h Change FuelBy the warranty Servicing Air CleanerTo clean air filter Do not clean housing with air hoseReinstall cleanout plug Tools Needed Inspecting And Cleaning Optional Spark Arrestor MufflerMaximum Adjusting Engine Speed On Standard ModelsDo not set engine speed higher than specified Close door Tools Needed 10 mmWeld/Power Speed Adjustment Idle Speed AdjustmentEngine Speed No Load Rpm max 61.6 Hz 1250 rpm 41.6 HzServicing Fuel And Lubrication Systems Overload Protection Diagnostic Checks While Running Diagnosing Causes Of Engine Fault ShutdownsCorrect the cause of the shut Down before operatingWelding − CC Models TroubleshootingWelding − CC/CV Models Standard Generator Power Optional Three-Phase Generator Power CC/CV Models OnlyEngine Shutdown switch is released Out Wiring harness and componentsTemperature is too high see Sections 5-7and Air in fuel system. See engine manualReturn To Table Of Contents Circuit Diagram For CC Welding Generator − Electrical Diagrams215 296-B Circuit Diagram For CC/CV Welding Generator 215 297-B − RUN-IN Procedure WetstackingMent damage may occur Procedure at less than Run-In Procedure Using Load BankStop engine Do not touch hot exhaust From flammables Do not PerformBank/grid Run-In Procedure Using Resistance GridFrom flammables Do not perform run-inHas this symbol − Generator Power GuidelinesSelecting Equipment Grounding Generator To Truck Or Trailer FrameHow Much Power Does Equipment Require? Grounding When Supplying Building SystemsEarth ground if supplying Use ground device as stated in electrical codesApproximate Power Requirements For Farm/Home Equipment Approximate Power Requirements For Industrial MotorsIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentHow Much Power Can Generator Supply? Power Required To Start MotorSingle-Phase Induction Motor Starting Requirements KVA/HP x HP xTypical Connections To Supply Standby Power Current Load Watts Amperes Selecting Extension Cord Use Shortest Cord Possible109 111 -4 or − Parts List85 Fig 118Dia Part Mkgs Description Quantity 209 Figures 13-2 Control Box Assembly − CC Models PLG3 Control Box Assembly − CC/CV Models PC7 195 Panel, Front w/Components − CC Models RC13 032 41 40 Panel, Front w/Components − CC/CV ModelsPanel, Front w/Components − CC/CV Models -1Item PC4, PC5 189 Generator -1Item Generator602 SCREW, .312−18x .75 hexwhd.66d stl pld slffmg tap−rw 601 Main Rectifier Assembly Page Page Service Your distributor also givesSupport For assistance in filing or settling claims, contact Miller Electric Mfg. CoYour distributor and/or equipment manufacturer’s Transportation Department