Miller Electric ST-800 202-A Owner's Manual
Miller Electric ST-800 202-A Owner's Manual

Miller Electric ST-800 202-A Owner's Manual

Process selector control

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OWNER'S MANUAL
Process Selector Control
1.
Specifications
ST-800 202-A
2.
Safety Symbol Definitions
Warning! Watch Out! There are possible hazards as
shown in the adjoining symbols.
Beware of electric shock from wiring. Keep all panels and
covers closed.
Have only trained and qualified persons install, operate,
or service this unit. Call your distributor if you do not un-
derstand the directions. For WELDING SAFETY and
EMF information, read wire feeder and welding power
source manuals.
3.
Location And Mounting
2
1
Tools Needed:
Process Selector Control For SMAW, GTAW, GMAW, And FCAW Welding Processes
Rated At 100 Volts, 650 Amperes At 30% Duty Cycle
Electrically Isolates Weld Current At Electrodes
Allows Changing Process Without Changing Cable Connections
2
3
4
April 1997
Effective With Serial No. KG102608
Beware of electric shock from welding electrode or wiring.
Touching the electrode while in contact with the work or
ground can cause electric shock. Always wear dry
gloves. Keep all panels and covers closed.
Welding processes cause flying pieces of metal and slag.
Wear safety glasses with side shields.
Hot parts can cause burns. Welding makes parts very hot −
let them cool before touching.
1
2
Place control as shown.
3
4
Use brackets as shown when at-
taching control to a D-60 model wire
feeder or Intellitig unit.
FORM: OM-817A
Welding Power Source
Process Selector Control
Brackets (Optional)
Intellitig Unit
ST-800 214-A / ST-800 215-A
©
1997 MILLER Electric Mfg. Co.

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Summary of Contents for Miller Electric ST-800 202-A

  • Page 1 Process Selector Control Place control as shown. Brackets (Optional) Intellitig Unit Use brackets as shown when at- taching control to a D-60 model wire feeder or Intellitig unit. Tools Needed: ST-800 214-A / ST-800 215-A © 1997 MILLER Electric Mfg. Co.
  • Page 2: Weld Cable Connections

    Weld Cable Connections WARNING ELECTRIC SHOCK can kill. • Do not touch live electrical parts. • Turn Off welding power source, and disconnect input power before making any input or output weld cable connections. swarn12.1* 2/93 NOTE See welding power source Owner’s Manual for weld cable and connection location information.
  • Page 3 Electrode 1 Bus Bar Electrode 2 A Terminal B Terminal C Terminal CONNECT BUS BAR E #2 E #1 TO E #2 ( − ) FROM POWER FROM WORK SOURCE ( + ) FROM ELECTRODE E #1 Tools Needed: 13/16 in Ref.
  • Page 4 Electrode 1 Electrode 2 A Terminal B Terminal C Terminal E #2 FROM ELECTRODE 2 MAX. IND. FROM POWER SOURCE MIN. IND. FROM ELECTRODE 1 E #1 CONNECT WORK TO POWER SOURCE ( − ) Tools Needed: 13/16 in Ref. ST-099 082-C / Ref. ST-098 115-B Figure 4-4.
  • Page 5: Operation

    Place switch lever fully left or right. ST-800 202-A / Ref. ST-162 505-A Duty Cycle Duty Cycle is percentage of 10 minutes that unit can weld at rated load without overheating. Y 30% Duty Cycle at 650 Amperes. Ex-...
  • Page 6: Routine Maintenance

    Routine Maintenance Y Disconnect power before maintaining. 3 Months Repair Or Replace Replace Unreadable Cracked Labels Cables Clean Tighten Weld Terminals 6 Months Blow Out During Heavy Service, Vacuum Clean Monthly Inside When Necessary Use a high temperature grease such as MILLER Part No. 156 738 to grease the switch mechanism. 10.
  • Page 7 11. Electrical Diagram SB-177 083-B Figure 11-1. Circuit Diagram OM-817 Page 7...
  • Page 8 12. Parts List ST-801 362 Figure 12-1. Complete Assembly OM-817 Page 8...
  • Page 9 Item Dia. Part Mkgs. Description Quantity Figure 12-1. Complete Assembly ......134 327 LABEL, warning general precautionary .

Table of Contents