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OM-2220 Page 3

1-3.

Additional Symbols For Installation, Operation, And Maintenance

HOT PARTS can cause severe burns.

D

Do not touch hot parts bare handed.

D

Allow cooling period before working on torch.

MOVING PARTS can cause injury.

D

Keep away from moving parts such as fans.

D

Keep all doors, panels, covers, and guards
closed and securely in place.

FLYING METAL can injure eyes.

D

Wear safety glasses with side shields or face
shield.

MAGNETIC FIELDS can affect pacemakers

.

D

Pacemaker wearers keep away.

D

Wearers should consult their doctor before go-
ing near plasma arc cutting operations.

OVERUSE can cause OVERHEATING.

D

Allow cooling period; follow rated duty cycle.

D

Reduce amperage (thickness) or reduce duty
cycle before starting to cut again.

EXPLODING HYDROGEN hazard.

D

When cutting aluminum underwater or with the
water touching the underside of the aluminum,
free hydrogen gas may collect under the work-
piece.

D

See your cutting engineer and water table instructions for help.

FALLING UNIT can cause injury.

D

Use lifting eye to lift unit only, NOT running
gear, gas cylinders, or any other accessories.

D

Use equipment of adequate capacity to lift unit.

D

If using lift forks to move unit, be sure forks are long enough to ex-
tend beyond opposite side of unit.

FIRE OR EXPLOSION hazard.

D

Do not locate 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.

STATIC (ESD) can damage PC  boards.

D

Put on grounded wrist strap BEFORE handling
boards or parts.

D

Use proper static-proof bags and boxes to
store, move, or ship PC boards.

H.F. RADIATION can cause interference.

D

High frequency (H.F.) can interfere with radio
navigation, safety services, computers, and
communications equipment.

D

Have only qualified persons familiar with elec-
tronic equipment perform this installation.

D

The user is responsible for having a qualified electrician promptly
correct any interference problem resulting from the installation.

D

If notified by the FCC about interference, stop using the equipment
at once.

D

Have the installation regularly checked and maintained.

D

Keep high-frequency source doors and panels tightly shut, keep
spark gaps at correct setting, and use grounding and shielding to
minimize the possibility of interference.

ARC CUTTING can cause interference.

D

Electromagnetic energy can interfere with
sensitive electronic equipment such as
computers and computer-driven equipment
such as robots.

D

To reduce possible interference, keep cables as short as possible,
close together, and down low, such as on the floor.

D

Locate cutting operation 100 meters from any sensitive electronic
equipment.

D

Be sure this cutting power source is installed and grounded
according to this manual.

D

If interference still occurs, the user must take extra measures such
as moving the machine, using shielded cables, using line filters, or
shielding the work area.

Summary of Contents for Spectrum 2050

Page 1: ...Visit our website at www MillerWelds com Spectrum 2050 Processes Description Air Plasma Cutting and Gouging Air Plasma Cutter OM 2220 190 444H November 1999 R...

Page 2: ...alue established in 1929 This Owner s Manual is designed to help you get the most out of your Miller products Please take time to read the Safety precautions They will help you protect yourself agains...

Page 3: ...2 Duty Cycle and Overheating 10 2 3 Cutting Speed 10 2 4 Selecting a Location 11 2 5 Connecting Work Clamp and Gas Air Supply 12 2 6 Electrical Service Guide 12 2 7 Extension Cord Data 13 2 8 Connect...

Page 4: ......

Page 5: ...cause fatal shocks or severe burns The torch and work circuit are electrically live whenever the output is on The input power circuit and machine internal circuits are also live when power is on Plas...

Page 6: ...d respirator Fumes from cutting and oxygen deple tion can alter air quality causing injury or death Be sure the breathing air is safe D Do not cut in locations near degreasing cleaning or spraying ope...

Page 7: ...not overload building wiring be sure power supply system is properly sized rated and protected to handle this unit STATIC ESD can damage PC boards D Put on grounded wrist strap BEFORE handling boards...

Page 8: ...10018 Cutting And Welding Processes NFPA Standard 51B from National Fire Protection Association Batterymarch Park Quincy MA 02269 1 5 EMF Information Considerations About Welding Or Cutting And The Ef...

Page 9: ...nants qui ont d j re u des combustibles D Portez des v tements de protection exempts d huile tels que des gants en cuir une veste r sistante des pantalons sans revers des bottes et un casque D Ne plac...

Page 10: ...a Sheets MSDS et les instructions du fabricant pour obtenir plus de renseignements sur les m taux couper les enrobages et les nettoyants D Travaillez dans un espace restreint uniquement s il est bien...

Page 11: ...f rences avec les quipements de ra dio navigation et de communication les services de s curit et les ordinateurs D Demander seulement des personnes qualifi es familiaris es avec des quipements lectron...

Page 12: ...ours en cours et les preuves continuent tre examin es En attendant que les conclusions finales de la recherche soient tablies il vous serait sou haitable de r duire votre exposition aux champs lectrom...

Page 13: ...V KVA KW Output Output Gas Cutting Capacity Circuit Voltage DC Single Phase 36 33 16 13 7 5 7 4 55 A 110 Volts DC 50 Duty Cycle Direct Current Air Or 0 875 in 3 Phase 21 20 9 8 7 6 7 9 for 575 V inpu...

Page 14: ...ranty Three Phase Input Power 60 Duty Cycle Overheating 0 15 A OR Reduce Duty Cycle Minutes duty1 4 95 Single PhaseInput Power 50 Duty Cycle 5 Minutes Cutting 5 Minutes Resting 2 3 Cutting Speed The c...

Page 15: ...ng data to determine input power needs 4 Line Disconnect Device Locate unit near correct input power supply Y Special installation may be required where gasoline or volatile liquids are present see NE...

Page 16: ...utput is the same for 50 Hertz or 60 Hertz input power For example the amperes input for 230 V 50 Hz single phase input power is 33 amperes The amperes input for 230 V 60 Hz single phase input power i...

Page 17: ...Conductor Size Max Cord Length 208 V 1 60 Time Delay 2 45 A Normal Operating 3 50 A 10 AWG 72 ft 22 m 230 V 1 60 Time Delay 2 40 A Normal Operating 3 50 A 10 AWG 89 ft 27 m 460 V 1 60 Time Delay 2 20...

Page 18: ...ut And Grounding Conductors 2 Line Disconnect Device See Section 2 6 For single phase operation 3 Black And Brown Input Conductor 4 Blue Input Conductor 5 Insulation Sleeving 6 Electrical Tape Insulat...

Page 19: ...switch to control pilot arc Place switch in Expanded Metal position for continuous pilot arc Use while cutting ex panded metals only The Expanded Metal position keeps the pilot arc in the circuit at a...

Page 20: ...nd turn to adjust pressure Push knob in to lock setting Select desired cutting output with Output Control 3 2 Setting Gas Air Pressure Ref ST 802 183 Ref ST 802 185 Ref SB 192 441 1 Set Controls Turn...

Page 21: ...c can be instantly restarted during postflow by pressing trigger Check Torch Tip Electrode And Retaining Cup Check Gas Air Pressure Set Controls Begin Cutting Turn On Power Source The pilot arc starts...

Page 22: ...e conditions Each Use Check Torch Tip Electrode And Shield Cup Check Gas Air Pressure Every Week Check Shield Cup Shutdown System 3 Months Service Air Filter Regulator Assembly Filter Replace Unreadab...

Page 23: ...s if power source overheats see Section 2 2 1 2 3 Difficulty establishing pilot arc may indicate consumables need to be cleaned or replaced 4 3 Checking Shield Cup Shutdown System Ref ST 801 300 A 1 T...

Page 24: ...ory Authorized Service Agent check for proper torch connections Check operation of gas valve GS1 and check gas air system for leaks Pressure Trouble light On Ready light off Check for correct gas air...

Page 25: ...OM 2220 Page 21 Notes...

Page 26: ...OM 2220 Page 22 SECTION 5 ELECTRICAL DIAGRAM Figure 5 1 Circuit Diagram For Power Source...

Page 27: ...OM 2220 Page 23 197 286 A...

Page 28: ...OM 2220 Page 24 SECTION 6 PARTS LIST ST 802 184 E Hardware is common and not available unless listed 4 5 6 10 11 16 22 23 37 39 43 52 53 19 12 13 15 49 50 27 28 51 28 25 Figure 6 1 Main Assembly...

Page 29: ...CUIT CARD ASSY driver pwm 1 26 196 163 WINDTUNNEL 1 27 193 675 RESISTOR bleeder 1 28 190 313 INSULATOR pc card 2 29 FM 175 084 FAN 1 30 PM1 191 591 KIT IGBT 914016 002 IGBT 1 31 195 947 HEATSINK 2 32...

Page 30: ...Notes...

Page 31: ...ting Torches Remote Controls Accessory Kits Replacement Parts No labor Spoolmate 185 Spoolmate 250 Canvas Covers Miller s True Blue Limited Warranty shall not apply to 1 Consumable components such as...

Page 32: ...complete and retain with your personal records Always provide Model Name and Serial Style Number Call 1 800 4 A Miller or see our website at www MillerWelds com to locate a DISTRIBUTOR or SERVICE AGEN...

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