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Miller SPECTRUM 750, Owner'S Manual

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Miller SPECTRUM 750 Owner'S Manual Download Page 6

Summary of Contents for SPECTRUM 750

Page 1: ...t This unit and these instructions are for use only by persons trained and experienced In the safe 1079 Appleton WI 54912 USA operation of welding equipment Do not allow untrained persons to Install T...

Page 2: ...Batteries 6 months provided that Miller is notified in writing within thirty 30 days of the date of such failure As a matter of general policy only Miller may honor claims submitted by the original u...

Page 3: ...to the torch for normal cutting operations when the torch switch is pressed CAUTION CUTTING WHEN THE GAS AIR SWITCH IS IN GOUGE POSITION will damage torch Do not cut when in GOUGE position Use GOUGE...

Page 4: ...angle to the line of travel and press torch switch There will be approximately 2 seconds of preflow air followed by approximately 2 1 2 seconds of pilot arc If the gouge arc is not started within the...

Page 5: ...9 6 9 9 3 I ci I IM ICATPO 804110 25 16 23 13 29 I CC4I P108 _v_v_v_v_v I I 3 4 5 AIR Lv_vvv l A A I I_ F JIJI 6 2 2 2 2 ffl22 1 i A P IPCl CIl CI L N PCI C PCI PLC PC2 PLC4 PCI C E RC3 PLGS PC4 D lC...

Page 6: ...ng Diagram For Power Source Effective With Serial No KA880002 8 1 TEl ii iii _________ P3 I I P2 I 11 l llllll I LI c III E III 11JIJll flftJ1i 1ftJIllll ii1 r r CP3 Ii 1 1 c psI I 12 It tl I III ____...

Page 7: ...0 a 0 0 I 0 3 z 0 U a C C 1U...

Page 8: ...No SA 135 750 Diagram 8 BA Circuit Diagram For Trouble Light Board PC4 CN1 CNI ON1 L E D2 0 CNI LED3 fl 0 ONI LED4 l 0 CNI L E D5 0 Circuit Diagram No SAl 43 674 Diagram 8 8B Circuit Diagram For Trou...

Page 9: ...2657 132657 GUIDE APT 7000 2 39 Added 132 658 GUIDE stand off APT 5000 2 39 Added 138 755 TIP gouge GH Eff w KA880002 thru KB079750 5 39 138 755 143 983 TIP gouge 70A Eff w KB079751 5 41 3 089 085 089...

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Page 11: ...CONTENTS Section No Page No SECTION 1 SAFETY RULES FOR PLASMA ARC CUTTING PAC 1 1 Introduction 1 1 2 General Precautions 1 1 3 Plasma Arc Cutting PAC 4 1 4 Standards Booklet index 5 SECTION 2 SAFETY...

Page 12: ...Circuit Diagram For Hall Device HD1 33 SECTION 9 PLASMA ARC CUTTING PAC INSTALLATION GUIDELINES 9 i General 34 9 2 Definitions 34 9 3 High Frequency Radiation 35 9 4 Location 35 9 5 General Installat...

Page 13: ...ields underneath and appropriate filter lenses or plates protected by clear cover glass This is a MUST for welding or cutting and chipping or grinding to pro tect the eyes from radiant energy or flyin...

Page 14: ...described in AWS Standard F4 1 listed 7 in Standards Index This includes a thorough steam or caustic cleaning or a solvent or waterwashing depend ing on the combustibles solubility followed by purgin...

Page 15: ...e momentarily pointing outlet away from people and sources of ignition Wipe with a clean lintless cloth Match regulator to cylinder Before connecting check that the regulator label and cylinder markin...

Page 16: ...area For production cutting a sepa rate room or enclosed bay is best In open areas sur round the operation with low reflective non combusti ble screens or panels Allow for free air circulation par ti...

Page 17: ...at permit on off control of the cutting power output As a result the cutting torch electrode and tip become electrically HOT whenever the power source is ON and the cutting torch switch is closed pres...

Page 18: ...n the unit pertains to equipment design installation operation maintenance and troubleshooting which should be read understood and followed for the safe and effective use of this equipment The namepla...

Page 19: ...ions SB 134 696 3 1 DUTY CYCLE The duty cycle is the percentage of a ten minute period that the power source and torch can be operated at a giv en output without overheating and damaging the power sou...

Page 20: ...deter mine the maximum cutting speed for various thickness of mild steel within the capabilities of the power source The curve indicates the proper speeds at which cutting may be done although the sp...

Page 21: ...spreader bar not supplied when trans porting this unit using the supplied lifting hooks see Figure 4 1 Use cable s of adequate capacity to lift and support unit Installation And Use Of Lifting Hooks...

Page 22: ...ct to terminal 6 when cutting cur rent is not present contact closure when cutting current is present Terminal 6 Output sensor connection normally open with respect to terminal 5 when cutting cur rent...

Page 23: ...nnection connect air hose from gas air sup ply to In Port of air fitter regulator see Figure 4 4 Figure 4 4 Rear Panel View And Component Locations To make connections for remote operation proceed as...

Page 24: ...vailable how properconnections should be made and inspection required B Jumper Link Installation Figure 4 5 a WARNING Read and follow safety Informa tion at beginning of entire Section 4 7 before proc...

Page 25: ...lief installed in Step 3 Route conductors to the input terminal board 5 Connect input conductors to line terminals on the in put terminal board see Figure 4 5 6 Connect the ground conductor to the gro...

Page 26: ...uide Stand Oft Guide Torch Torch Stand Off Guide Stop Guide Sleeve d y Stand Off Guide Stop Guide Sleeve Torch Torch S 0435 S 0342 APT 5000 APT 7000 Figure 4 6 Installation Of The Stand Off Guide OM 2...

Page 27: ...n damage torch When THICKNESS OUTPUT CONTROL is set above 3 8 in 9 5mm always use 1 8 in 3 mm standoff distance between torch tip and workpiece see Section 4 7 5 4 TEST RUN SWITCH FIgure 5 1 The TEST...

Page 28: ...ing aluminum on a water table may cause hydrogen detonation beneath the workpiece Contact equipment manufacturer for recom mended practices for cutting aluminum FLYING SPARKS AND HOT METAL can cause f...

Page 29: ...4 7 12 Adjust torch speed so that sparks are directed through material away from torch tip Proper cutting speed is being used when sparks go out bottom of Cut 13 Pause briefly at end of Cut to allow m...

Page 30: ...dust and dirt from the inside of the power source Remove the outer enclosure and use a vacuum suction for the cleaning operation If dusty or dirty conditions are present clean the unit once a month T...

Page 31: ...spark gap proceed as fol lows 1 Shut down power source 2 Remove right side panel from unit 3 Loosen screw A 4 Place feeler gauge of 0 030 in 0 762 mm thick ness between point C 5 Apply slight pressur...

Page 32: ...uble Light Main transformer Ti is protected by normally closed thermostat TP1 and main rectifier SRi is protected by normally closed thermostat TP2 Should TP1 and or TP2 open thermal shutdown wouid oc...

Page 33: ...ized Service Station Does not cut POWER light PL1 on READY light PL2 off TROUBLE LIGHTS off fan mo tor FM runs Fuse Fl open on Timer Control Board PC2 Check and replace Flit necessary see Section 7 4...

Page 34: ...Table 3 1 Specifications for re quirements Check gas air supply pressure Air pressure switch S2 Check and replace S2 if necessary Dirty air filter regulator Clean air filter regulator according to ma...

Page 35: ...Table 3 1 Specifications for requirements Check gas air supply Reed switch RS1 Check and replace RS1 if necessary Gas solenoid GS1 Check and replace GS1 if necessary Fan does not run POWER light PL1 a...

Page 36: ...I 3 4 5 I 21 24 20 16 23 13 29 041 91 58 I 13 AIR Lvvvv_J 14 TRI V XJ66J 7rJ 1 jjjj 195 a ec3 AAAA A A P 4RCIIP10II L Rd I 56 II Rd K RCI P1ED RCI G R VU34 Rc3 PLRS RC40 K H A TD fIRQ BOARd L________V...

Page 37: ...4 12 I0 0 0 D Circuit Diagram No SC i 26 851 A Diagram 8 2 Circuit Diagram For Regulator Board PCi...

Page 38: ...p vlvpsw QO nil o cI c PcI CHASSIST 31101 G lD ____________f lI 4 IMi i 02 GND 0 4 Diagram 8 3 Wiring Diagram For Power Source 1 jjii j J TEl P3 I Li i3 iO i P2 I I naini oi flhI1ilJ Ii1Jtfli 1I1flu1...

Page 39: ...RCJ PLG 0 o C PC I PLG2 P WT T _________________ ____________ C 0 lEEPC2 P GP LI S76IPtG 131 c I ____ P ir k 4 LI I go I I RC PtG3 0 I I 0 o a 0 7771112 P03 PIG5...

Page 40: ...V2 t24V Vt Diagram 8 4A Circuit Diagram Portion For Timer Control Board PC2 1 of 2 v3 10 13 12 04 10 WAtER OCT OM 2201 Page 28...

Page 41: ...LED Circuit Diagram No D 131 748 OM 2201 Page 29...

Page 42: ...2 of 2 12 TEST WATER T VI 3 1 TO UI PIN 14 c57 TO U17 PIN 14 H C86 TO U18 PIN 8 Cal TO 119 PIN 8 CbS TO U22 PIN 14 TO 123 PIN 14 TO 02 PIN 14 t H TO 13 PIN 14 TO U4 PIN 14 U TO L PIN 14 VI TO U14 PIN...

Page 43: ...48 15 16 15 WI 15 IN 15 WI tt J4T IG1 6 0 NC WIPEfi I 016 ____ 24VAC 240AC 1 1ST AIR S EJ ID 24VAC BYPASS S DCID 124VAC tt5VAC JJT IT If C ITAC1 24V6C TEIP LEO TEIP 7 7 D1IICAT LI fI IvF_W 1 IRVAC T T...

Page 44: ...am 8 5 Circuit Diagram For Relay Board PC3 Circuit Diagram No B 128 923 RCI H RC I dl PCi RC2 dl PCI F7 RC2 Li L2 OTO L3 L4 DIagram 8 6 CircuIt Diagram For Filter Board PC5 Cl RC2 B RC2 I T T T T A7 R...

Page 45: ...C 0 F A B Circuit Diagram No SA ilO 758 A Diagram 8 7 Circuit Diagram For Hail Device HDI 15 VDC IS VDC OM 2201 Page 33...

Page 46: ...urce must flow to the torch electrode via a good quality low impedance and well insulated connecting cable B Cutting Circuit The circuit consists of all attachments connected to the electrode pilot ar...

Page 47: ...ion of the power source Ideally the power source should be located in an area where there is a limited amount of miscellaneous wiring lighting power tele phone communications and other unshielded cond...

Page 48: ...nductors within the cutting zone must be enclosed in grounded rigid metallic conduit copper braid or some other mate rial having an equivalent shielding capability spirally wound flexible metallic con...

Page 49: ...zone b Ground all large metallic objects long guy wires or support wires within the cutting zone c Be sure that there are no external power ortele phone wires within the cutting zone 8 Use driven grou...

Page 50: ...C FriC I 0z 0 r C I 0 0 o Ca Fig 10 7 1 3 SC 134 698 Figure 10 1 Main Assembly...

Page 51: ...TING brs barbed M 3 l6tbg x 1 4NPT 1 24 604 550 HOSE nprn brd No 1 x 187 ID order by ft itt 25 010 323 CLAMP hose 250 625c1p dia 2 26 124 714 FITTING brs barbed M 1 4tbg x 1 4NPT 1 27 132 753 HOSE air...

Page 52: ...2 3 Figure 10 2 Panel Front w Components Fig 9 4 SC 134 705 4 5 6 25 3 7 11 24 12 13 14 15 Fig 9 3 16 21 19 20 FIg 9 6 22 18 Fig 9 5 OM 2201 Page 40...

Page 53: ...CUIT CARD timer control Fig 10 3 TERMINAL header 29skt CIRCUIT CARD regulator Fig 10 4 CIRCUIT CARD relay Fig 10 5 HOUSING PLUG SOCKETS consisting of TERMINAL female lskt 18 24 wire CIRCUIT CARD filte...

Page 54: ...elctlt 1 000uf 35VDC CAPACITOR polye film luf bOy CAPACITOR tantlm but 35V0C CAPACITOR tantlm 47uf 35V CAPACITOR tantlm i5uf 35VDC CAPACITOR polye film 047uf bOy CAPACITOR elctlt lOOuf 35VDC CAPACITO...

Page 55: ...tity Continued R83 030819 RESISTOR C2W27Oohm 1 RC1 2 114425 TERMINAL headerl6pin 2 RC3 113 747 TERMINAL header 10 pin 1 RC4 117864 TERMINAL header 14 pin I RC5 114654 TERMINAL header6pin 1 SRi 035841...

Page 56: ...Figure 10 4 Circuit Card Regulator PCi C 126 963 B OM 2201 Page 44...

Page 57: ...PLACEMENT PARTS Part No Descnption PCi 127 184 FIgure 10 4 CIrcuit Card Regulator FIg 10 2 Item 17 Quantity 8 2 3 IC linear 307 CAPACITOR cer disc OO3uf 3000VDC CAPACITOR polye met film 1 5uf 1 OOV CA...

Page 58: ...4PDT 4 Di 8 10 028007 DIODE rectlA800VSP 9 D11 l2 026 202 DIODE rect 1A 400V SP 2 Fl 012 633 FUSE minat gil A 1 Ll 2 113009 CHOKE RF 100 UH 2 L3 033 942 CHOKE RF 250MA 3 8 ohm 1 RC1 117 864 TERMINAL h...

Page 59: ...BRACKET mtg air filter regulator GAUGE air 0 1 60 psi HOSE air consisting of FITTING hose brs barbed nipple 5 16TBG FITTING hose brs nut 625 18 RH FITTING hose brs ferrule 550 ID x 718 L FITTING brs b...

Page 60: ...8 19 20 21 22 RELAY reed CAPACITOR ASSEMBLY consisting of CAPACITOR cer disc 0022uf 3000VAC STAND OFF insul 250 20 x 1 000 Ig x 312 thd NUT sti hex half 750 16 STUD brs 250 20 x 1 250 NUT brs hex jam...

Page 61: ...9 RectifIer Main Fig 10 1 Item 5 1 2 3 SCR1 3A B 126 283 112 250 126282 POWER BLOCK thyristor 40A FOiL interface heat transfer HEAT SINK 4 5 6 7 TP2 D4 129 552 126 213 126 710 126495 THERMOSTAT NC DiO...

Page 62: ...R WHEN ORDERING REPLACEMENT PARTS Item No Part No 1 601 835 NUT brs hex 10 32 reg 2 038618 LINK jumpertermbdpn 3 010913 WASHER flatbrs 1871D 4 038 887 STUD primary board brs 10 32 5 038 058 TERMINAL B...

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