Page 2 - From Miller to You
Miller Electric manufactures a full lineof welders and welding related equipment.For information on other quality Millerproducts, contact your local Miller distributorto receive the latest full line catalog orindividual catalog sheets. To locate your nearestdistributor or service agency call 1-800-4...
Page 3 - TABLE OF CONTENTS; WARNING
The following terms areused interchangeablythroughout this manual:TIG = GTAWStick = SMAW TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 4 - Declaration of Conformity For; Invision; Directives
dec_con1 10/95 Declaration of Conformity For European Community (CE) Products Manufacturer ’s Name: Miller Electric Mfg. Co. Manufacturer ’s Address: 1635 W. Spencer StreetAppleton, WI 54914 USA Declares that the product: Invision 456P conforms to the following Directives and Standards: Directives...
Page 5 - SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING; Symbol Usage; Arc Welding Hazards; ELECTRIC SHOCK can kill.
OM-185 648 Page 1 SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING som _nd_4/98 1-1. Symbol Usage Means Warning! Watch Out! There are possible hazardswith this procedure! The possible hazards are shown inthe adjoining symbols. Y Marks a special safety message. . Means “Note”; not safety related. T...
Page 7 - Additional Symbols For Installation, Operation, And Maintenance; Principal Safety Standards
OM-185 648 Page 3 1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. D Do not install or place unit on, over, or nearcombustible surfaces. D Do not install unit near flammables. D Do not overload building wiring – be sure power supply system isproperly siz...
Page 8 - EMF Information
OM-185 648 Page 4 1-5. EMF Information Considerations About Welding And The Effects Of Low FrequencyElectric And Magnetic FieldsWelding current, as it flows through welding cables, will cause electro-magnetic fields. There has been and still is some concern about suchfields. However, after examining...
Page 9 - Signification des symboles; Dangers relatifs au soudage à l’arc; UN CHOC ÉLECTRIQUE peut tuer.
OM-185 648 Page 5 SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANT UTILISATION som _nd_fre 4/98 1-1. Signification des symboles Signifie Mise en garde ! Soyez vigilant ! Cette procédureprésente des risques de danger ! Ceux-ci sont identifiéspar des symboles adjacents aux directives. Y Identifie un mes...
Page 10 - LE BRUIT peut affecter l’ouïe.
OM-185 648 Page 6 Le rayonnement de l’arc du procédé de soudagegénère des rayons visibles et invisibles intenses(ultraviolets et infrarouges) susceptibles de provoquer des brûlures dans les yeux et sur la peau. Des étincelles sont projetées pendant le soudage. LES RAYONS DE L’ARC peuvent pro-voquer ...
Page 13 - SECTION 2 – DEFINITIONS; Manufacturer ’s Warning Label Definitions
OM-185 648 Page 9 SECTION 2 – DEFINITIONS 2-1. Manufacturer ’s Warning Label Definitions Warning! Watch Out! There arepossible hazards as shown by thesymbols. 1 Electric shock from weldingelectrode or wiring can kill. 1.1 Wear dry insulating gloves. Do not touch electrode withbare hand. Do not wear ...
Page 16 - SECTION 3 – INSTALLATION; Specifications; Duty Cycle And Overheating
OM-185 648 Page 12 SECTION 3 – INSTALLATION 3-1. Specifications Input Power Rated Welding Output Voltage Range Maximum Open- Circuit Amperes Input At Rated Load Output 60 Hz, Three-Phase Voltage DC 400 V KVA KW Three Phase 450 A @ 38 Volts DC, 100% Duty Cycle; 565 A @ 38 Volts DC, 60% Duty Cycle 10 ...
Page 18 - Selecting A Location
OM-185 648 Page 14 14-1/2 in (368 mm) 3-4. Selecting A Location loc_2 3/96 - ST-800 611 / ST-801 718 1 Lifting Forks Use lifting forks to move unit. Extend forks beyond opposite sideof unit. 2 Lifting Handles Use handles to lift unit. 3 Hand Cart Use cart or similar device to moveunit. 4 Rating Labe...
Page 19 - Weld Output Terminals And Selecting Cable Sizes
OM-185 648 Page 15 3-5. Weld Output Terminals And Selecting Cable Sizes Y ARC WELDING can cause Electromagnetic Interference. To reduce possible interference, keep weld cables as short as possible, close together, and down low, such as on the floor.Locate welding operation 100 meters from any sensit...
Page 20 - Remote 14 Receptacle Information
OM-185 648 Page 16 3-6. Remote 14 Receptacle Information Socket* Socket Information 24 VOLTS AC A 24 volts ac. Protected by circuit breaker CB2. 24 VOLTS AC B Contact closure to A completes 24 volts ac con-tactor control circuit. A J B K I 115 VOLTS AC I 115 volts ac. Protected by circuit breaker CB...
Page 21 - 15 Volts AC Duplex Receptacle; Electrical Service Guide
OM-185 648 Page 17 3-7. 115 Volts AC Duplex Receptacle Ref. ST-801 524-A 1 115 V 7 A AC Receptacle Power is shared between duplexreceptacle and Remote 14 recep-tacle (see Section 3-6). 2 Circuit Breaker CB1 3 Circuit Breaker CB2 CB1 protects 115 volts ac portion ofduplex receptacle and Remote 14rece...
Page 22 - Connecting Input Power
OM-185 648 Page 18 3-9. Connecting Input Power ssb2.4* 1/94 – ST-801 718 / ST-801 946 Tools Needed: 5/16 in Input Filter Board L1 =GND/PE Y Always connect grounding conductor first. Y Turn Off welding power source, andcheck voltage on input capacitors ac-cording to Section 5-3 beforeproceeding. Chec...
Page 23 - SECTION 4 – OPERATION; Front Panel Controls; Mode And Voltage Control
OM-185 648 Page 19 SECTION 4 – OPERATION 4-1. Front Panel Controls 1 Power On/Off Switch . The fan motor is thermostaticallycontrolled and only runs when cooling isneeded. 2 Voltmeter (see 4-3) 3 Ammeter (see 4-3) 4 Voltage Adjustment Control 5 Inductance Control Inductance determines the “wetness” ...
Page 24 - Meter Functions; NOTE; PPP
OM-185 648 Page 20 4-3. Meter Functions The meters display the actual weld output values for approximately three secondsafter the arc is broken. NOTE Mode Meter Reading At Idle Meter Reading While Welding MIG Preset Volts Blank V A 24.5 Actual Volts Actual Amps V A 24.5 250 Pulsed MIG Pulse Display ...
Page 25 - SECTION 5 – MAINTENANCE & TROUBLESHOOTING; Routine Maintenance
OM-185 648 Page 21 SECTION 5 – MAINTENANCE & TROUBLESHOOTING 5-1. Routine Maintenance Y Disconnect power before maintaining. . Maintain more oftenduring severe conditions. 3 Months Replace Damaged Or Unreadable Labels Replace Cracked Torch Body Repair Or Replace Cracked Cables Repair Or Replace ...
Page 26 - Removing Case and Measuring Input Capacitor Voltage
OM-185 648 Page 22 5-3. Removing Case and Measuring Input Capacitor Voltage Turn Off welding power source, anddisconnect input power. 1 Outside Handle Screws To loosen top, remove two outsidehandle screws from both handlesand all side bolts. 2 Interconnecting Board PC2 3 Voltmeter Measure the dc vol...
Page 27 - Voltmeter/Ammeter Help Displays
OM-185 648 Page 23 5-4. Voltmeter/Ammeter Help Displays . All directions are in reference tothe front of the unit. All circuitryreferred to is located inside theunit. 1 Help 1 Display Indicates a malfunction in the pri-mary power circuit. If this display isshown, contact a Factory Autho-rized Servic...
Page 28 - Troubleshooting
OM-185 648 Page 24 5-5. Troubleshooting Trouble Remedy No weld output; unit completely inop-erative. Place line disconnect switch in On position (see Section 3-9). Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 3-9). Check for proper input power connections (see ...
Page 29 - Notes
Page 30 - SECTION 6 – ELECTRICAL DIAGRAM; Figure 6-1. Circuit Diagram For Welding Power Source
OM-185 648 Page 26 SECTION 6 – ELECTRICAL DIAGRAM Figure 6-1. Circuit Diagram For Welding Power Source
Page 32 - SECTION 7 – PARTS LIST
OM-185 648 Page 28 SECTION 7 – PARTS LIST . Hardware is common andnot available unless listed. 801 930-C 1 2 9 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 31 32 33 34 35 36 37 38 39 40 41 42 43 4 44 45 46 48 49 50 46 51 52 53 57 58 36 60 59 61 62 63 64 4 PC1 PC2 3 65 4 5 6 7 8 30 10 47 ...
Page 35 - (Equipment with a serial number preface of “LA” or newer)
Warranty Questions? Call1-800-4-A-MILLERfor your localMiller distributor. miller_warr 7/00 Your distributor also givesyou ... ServiceYou always get the fast,reliable response youneed. Most replacementparts can be in yourhands in 24 hours. SupportNeed fast answers to thetough welding questions?Contac...
Page 36 - Please complete and retain with your personal records.; For Service
PRINTED IN USA 2001 Miller Electric Mfg. Co. 1/01 Miller Electric Mfg. Co. An Illinois Tool Works Company1635 West Spencer StreetAppleton, WI 54914 USA International Headquarters–USAUSA Phone: 920-735-4505 Auto-AttendedUSA & Canada FAX: 920-735-4134International FAX: 920-735-4125 European Head...
