Instruction/ maintenance manual of the product 456P Miller Electric
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OM-185 648F July 2001 Processes Description MIG (GMA W) W elding With Optional Equipment: Pulsed MIG (GMAW -P) Arc Welding Power Source Invision 456P Visit our website at www.
Miller Electric manufactures a full line of welders and welding related equipment. For information on other quality Miller products, contact your local Miller distributor to receive the latest full line catalog or individual catalog sheets. T o locate your nearest distributor or service agency call 1-800-4-A-Miller , or visit us at www .
The following terms are used interchangeably throughout this manual: TIG = GT AW Stick = SMAW T ABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . .
dec_con1 10/95 Declaration of Conformity For European Community (CE) Products Manufacturer ’ s Name: Miller Electric Mfg. Co. Manufacturer ’ s Address: 1635 W .
OM-185 648 Page 1 SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING som _nd_4/98 1-1. Symbol Usage Means W arning! W atch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. Y Marks a special safety message.
OM-185 648 Page 2 Arc rays from the welding process produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Sparks fly off from the weld. ARC RA YS can burn eyes and skin. D Wear a welding helmet fitted with a proper shade of filter to protect your face and eyes when welding or watching (see ANSI Z49.
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 near combustible surfaces. D Do not install unit near flammables. D Do not overload building wiring – be sure power supply system is properly sized, rated, and protected to handle this unit.
OM-185 648 Page 4 1-5. EMF Information Considerations About W elding And The Effects Of Low Frequency Electric A n d M a g netic Fields W elding current, as it flows through welding cables, will cause electro- magnetic fields. There has been and still is some concern about such fields.
OM-185 648 Page 5 SECTION 1 – CONSIGNES DE SECURITE – LIRE A V ANT UTILISA TION som _nd_fre 4/98 1-1. Signification des symboles Signifie Mise en garde ! Soyez vigilant ! Cette proc é dure pr é sente des risques de danger ! Ceux-ci sont identifi é s par des symboles adjacents aux directives.
OM-185 648 Page 6 Le rayonnement de l ’ arc du proc é d é de soudage g é n è re des rayons visibles et invisibles intenses (ultraviolets et infrarouges) susceptibles de provoquer des br û lures dans les yeux et sur la peau. Des é tincelles sont projet é es pendant le soudage.
OM-185 648 Page 7 1-3. Dangers suppl é mentaires en relation avec l ’ installation, le fonctionnement et la maintenance Risque D ’ INCENDIE OU D ’ EXPLOSION. D Ne pas placer l ’ appareil sur , au-dessus ou à proxi- mit é de surfaces infllammables.
OM-185 648 Page 8 1-4. Principales normes de s é curit é Safety in W elding and Cutting, norme ANSI Z49.1, de l ’ American Wel- ding Society , 550 N.W . Lejeune Rd, Miami FL 33126 Safety and Health Sandards, OSHA 29 CFR 1910, du Superintendent of Documents, U.
OM-185 648 Page 9 SECTION 2 – DEFINITIONS 2-1. Manufacturer ’ s W arning Label Definitions W arning! Watch Out! There are possible hazards as shown by the symbols. 1 Electric shock from welding electrode or wiring can kill. 1.1 W ear dry insulating gloves.
OM-185 648 Page 10 > 60 s V S-179 190-A V V 1 W arning! W atch Out! There are possible hazards as shown by the symbols. 2 Electric shock from wiring can kill. 3 Disconnect input plug or power before working on machine. 4 Hazardous voltage remains on input capacitors after power is turned off.
OM-185 648 Page 1 1 2-2. Symbols And Definitions A Amperage Positive Remote V V oltage Output Circuit Breaker Negative On Of f Inductance Protective Earth (Ground) V oltage Input 2-3.
OM-185 648 Page 12 SECTION 3 – INST ALLA TION 3-1. Specifications Input Power Rated W elding Output V oltage Range Maximum Open- Circuit Amperes Input At Rated Load Output 60 Hz, Three-Phase V oltage DC 400 V KV A KW Three Phase 450 A @ 38 V olts DC, 100% Duty Cycle; 565 A @ 38 V olts DC, 60% Duty Cycle 10 – 38 95 31 21.
OM-185 648 Page 13 3-3. V olt-Ampere Curve va_curve1 4/95 – SA-181 562 V olt-ampere curves show mini- mum and maximum voltage and amperage output capabilities of unit.
OM-185 648 Page 14 14-1/2 in (368 mm) 3-4. Selecting A Location loc_2 3/96 - ST -800 61 1 / ST-801 718 1 Lifting Forks Use lifting forks to move unit. Extend forks beyond opposite side of unit. 2 Lifting Handles Use handles to lift unit. 3 Hand Cart Use cart or similar device to move unit.
OM-185 648 Page 15 3-5. W eld Output T erminals And Selecting Cable Sizes Y ARC WELDING can cause Electromagnetic Interference. T o reduce possible interference, keep weld cables as short as possible, close together , and down low , such as on the floor .
OM-185 648 Page 16 3-6. Remote 14 Receptacle Information Socket* Socket Information 24 VOL TS AC A 24 volts ac. Protected by circuit breaker CB2. 24 VOL TS AC B Contact closure to A completes 24 volts ac con- tactor control circuit. AJ B K I 1 15 VOL TS AC I 1 15 volts ac.
OM-185 648 Page 17 3-7. 1 15 V olts AC Duplex Receptacle Ref. ST-801 524-A 1 1 15 V 7 A AC Receptacle Power is shared between duplex receptacle and Remote 14 recep- tacle (see Section 3-6). 2 Circuit Breaker CB1 3 Circuit Breaker CB2 CB 1 protects 1 15 volts ac portion of duplex receptacle and Remote 14 receptacle from overload.
OM-185 648 Page 18 3-9. Connecting Input Power ssb2.4* 1/94 – ST-801 718 / ST -801 946 T ools Needed: 5/16 in Input Fil t e r Board L1 =GND/PE Y Always connect grounding conductor first. Y T urn Off welding power source, and check voltage on input capacitors a c - cording to Section 5-3 before proceeding.
OM-185 648 Page 19 SECTION 4 – OPERA TION 4-1. Front Panel Controls 1 Power On/Off Switch . The fan motor is thermostatically controlled and only runs when cooling is needed. 2 V oltmeter (see 4-3) 3 Ammeter (see 4-3) 4 V oltage Adjustment Control 5 Inductance Control Inductance determines the “ wetness ” of the weld puddle.
OM-185 648 Page 20 4-3. Meter Functions The meters display the actual weld output values for approximately three seconds after the arc is broken. NOTE Mode Meter Reading At Idle Meter Reading While W elding MIG Preset V olts Blank VA 24.5 Actual V olts Actual Amps VA 24.
OM-185 648 Page 21 SECTION 5 – MAINTENANCE & TROUBLESHOOTING 5-1. Routine Maintenance Y Disconnect power before maintaining. . Maintain more often during severe conditions.
OM-185 648 Page 22 5-3. Removing Case and Measuring Input Capacitor V oltage Turn Of f welding power source, a n d disconnect input power . 1 Outside Handle Screws T o loosen top, remove two outside handle screws from both handles and all side bolts.
OM-185 648 Page 23 5-4. V oltmeter/Ammeter Help Displays . Al l directions are in reference to th e front of the unit. All circuitry referred to is located inside the unit. 1 Help 1 Display Indicates a malfunction in the pri- mary power circuit. If this display is shown, contact a Factory Autho- rized Service Agent.
OM-185 648 Page 24 5-5. T roubleshooting T rouble 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).
OM-185 648 Page 25 Notes.
OM-185 648 Page 26 SECTION 6 – ELECTRICAL DIAGRAM Figure 6-1. Circuit Diagram For Welding Power Source.
OM-185 648 Page 27 SD-185 518.
OM-185 648 Page 28 SECTION 7 – P ARTS LIST . Hardware is common and not 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 54 55 56 66 Figure 7-1.
OM-185 648 Page 29 Description Part No. Dia. Mkgs. Item No. Figure 7-1. Complete Assembly Quantity 1 187 234 COVER, top 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OM-185 648 Page 30 Description Part No. Dia. Mkgs. Item No. Figure 7-1. Complete Assembly (Continued) Quantity 53 HD1 168 829 TRANSDUCER, current 1000A max 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 S1 128 756 SWITCH, tgl 3PST 40A 600V AC scr 1 .
Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. miller_warr 7/00 Y o ur distributor also gives you ... Service Y ou always get the fast, reliable response you need. Most replacement parts can be in your hands in 24 hours. Support Need fast answers to the tough welding questions? Contact your distributor .
PRINTED IN USA 2001 Miller Electric Mfg. Co. 1/01 Miller Elect ric Mfg. Co. An I l li noi s T ool Works Com pany 1635 W est S pencer St reet Applet on, WI 54914 USA International He adquarters –.
An important point after buying a device Miller Electric 456P (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Miller Electric 456P yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Miller Electric 456P - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Miller Electric 456P you will learn all the available features of the product, as well as information on its operation. The information that you get Miller Electric 456P will certainly help you make a decision on the purchase.
If you already are a holder of Miller Electric 456P, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Miller Electric 456P.
However, one of the most important roles played by the user manual is to help in solving problems with Miller Electric 456P. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Miller Electric 456P along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
