Miller Electric 300 P manual Voltmeter/Ammeter Help Displays, Help 20 Display, Help 25 Display

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8-11. Voltmeter/Ammeter Help Displays

1

HL.P

2

HL.P

3

HL.P

4

HL.P

5

HL.P

6

HL.P

20

21

22

23

24

25

Use the Voltmeter/Ammeter help displays to diagnose and correct fault conditions.

.When a help code is displayed

normally weld output has stopped but generator power output may be okay.

.To reset help displays, stop unit and then restart. See item 6 below to reset Help 25 dis- play.

1 Help 20 Display

Indicates a failure of meter display module PC2, or the wiring between PC2 and main control module PC1. If this display is shown, have Facto- ry Authorized Service Agent check PC1, PC2, and the wiring between PC1 and PC2.

2 Help 21 Display

Indicates thermistor TH1 on the main rectifier heat sink has failed. If this display is shown, have Facto- ry Authorized Service Agent check TH1, and the wiring between TH1 and PC1.

3 Help 22 Display

Indicates the rectifier heat sink has overheated. If this display is shown, check generator cooling system and/or reduce duty cycle. Keep en- gine access door closed when run- ning to maintain proper cooling air flow past rectifier. Allow unit to cool before restarting. If problem contin- ues, have Factory Authorized Ser- vice Agent check unit.

4 Help 23 Display

Indicates one of the rectifier output SCR’s has failed. If this display is shown, have Factory Authorized Service Agent check the rectifier SCR’s.

5 Help 24 Display

Indicates weld open circuit voltage (OCV) is too high (above 41 volts dc). If this display is shown, have Factory Authorized Service Agent check main control module PC1.

6 Help 25 Display

Indicates a remote device con- nected to Remote Receptacle RC14 may be faulty. Help 25 is also displayed whenever a remote de- vice has been connected to RC14 and then disconnected. Clear fault by stopping and restarting the unit or by turning Process/Contactor switch to another position. If prob- lem continues, have Factory Autho- rized Service Agent check the re- mote device, filter board PC6, and main control module PC1.

803 562 / 217 357-A

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Contents File Engine Drive OM-4433218 314KProcesses DescriptionFrom Miller to You Table of Contents Warranty Arc Welding Hazards Symbol UsageEngine Hazards Compressed Air Hazards Radiation can cause interference Principal Safety StandardsCalifornia Proposition 65 Warnings EMF InformationLES Fumées ET LES GAZ peuvent être dangereux Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation UN Choc Électrique peut tuerLE 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 gravesLE Surchauffement peut endom- mager le moteur électrique LA Chaleur DU Moteur peut pro- voquer un incendie’AIR Comprimé peut provoquer des blessures ’EMPLOI Excessif peutBoulevard, Rexdale, Ontario, Canada M9W 1R3 téléphone LE Soudage À L’ARC risque de provoquer des interférencesPour les moteurs à essence Pour les moteurs diesel− 50 h Std − DefinitionsStd Manufacturer’s Rating Label Symbols And Definitions Weld, Power, And Engine Specifications − SpecificationsDimensions, Weights, And Operating Angles Volt-Ampere Curves Stick ModeMIG Mode TIG ModeDuty Cycle And Overheating Curve shows typical fuel use under weld or power loadsExceeding duty cycle can damage unit and void warranty Fuel Consumption150 125 100 AC Generator Power CurveGrounding − InstallationInstalling Welding Generator See -2for lifting eye rating See -2for mounting informationMounting Welding Generator Point exhaust pipe in desired di Installing Exhaust PipeTools Needed 1/2 Stop engine and let coolClose door after connecting battery Activating The Dry Charge Battery If ApplicableConnecting The Battery Do not overfill battery cellsOil Coolant Recovery TankEngine Prestart Checks Fuel Do not use gasoline. Gasoline will damage engineStop engine Connecting To Weld Output TerminalsStick and TIG Welding MIG and Fcaw WeldingStop engine before Selecting Weld Cable Sizes150 ft 200 ft 250 ft 350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 mSocket Information Connecting To Remote 14 Receptacle RC14Front Panel Controls See Section − Operating Welding GeneratorDescription Of Front Panel Controls See Section Process/Contactor Switch Settings Process/Contactor SwitchLift-Arc t TIG Lift-ArcStart ProcedureLift-Arc Start Method Touch Do not Strike Like a MatchRemote Voltage/Amperage Control − Operating Auxiliary Equipment Generator Power ReceptaclesAt least once a month, run engine at Routine Maintenance − Maintenance & TroubleshootingMaintenance Label Do not clean housing with air hose Servicing Air CleanerBy the warranty To clean air filterStop engine and let cool. Reinstall cleanout plug Inspecting And Cleaning Optional Spark Arrestor MufflerServicing Engine Cooling System Stop engine. Close door Adjusting Engine Speed On Standard ModelsMaximum Do not set engine speed higherRpm max 62.6 Hz 1250 rpm 41.6 Hz Engine Speed AdjustmentWeld/Power Speed Adjust- ment Engine Speed No LoadTo drain water from fuel system Servicing Fuel And Lubrication SystemsTo change oil and filter To replace primary canister fuel filterOverload Protection Replace Damaged Brushes Checking Generator BrushesHelp 20 Display Voltmeter/Ammeter Help DisplaysHelp 25 Display Welding TroubleshootingEngine Generator PowerCheck for obstructed throttle solenoid Material Thickness Reference Chart Circuit Diagram For Welding Generator − Electrical Diagrams219 228−D Wetstacking − RUN-IN ProcedureWelding Generator From flammables Do not Perform Run-In Procedure Using Load BankProcedure at less than Stop engine Do not touch hot exhaustDo not perform run-in Run-In Procedure Using Resistance GridBank/grid From flammablesGrounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesHas this symbol Selecting EquipmentUse ground device as stated Electrical codes Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Earth ground if supplyingFarm/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 WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentKVA/HP x HP x 1000 = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting RequirementsTypical Connections To Supply Standby Power Current Load Watts Amperes Selecting Extension Cord Use Shortest Cord Possible109 − Parts List108 -2 107 101 102 103 100 104 106 105 81 Fig 7372 71 67 66 65 PC3 Dia Part Description Quantity Mkgs Batt Panel, Front w/Components -1Item Panel, Front w/ComponentsFUEL/HM Control Panel Generator Rectifier Assembly Wiring Harnesses 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