Miller Electric MOG-200C Owner's Manual
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Miller Electric MOG-200C Owner's Manual

Miller Electric MOG-200C Owner's Manual

Om-805
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Read and follow these instructions and all
safety blocks carefully.
Have only trained and qualified persons
install, operate, or service this unit.
Call your distributor if you do not understand
the directions.
cover 1/94 – ST-080 151-B
OWNER'S
MANUAL
MOG-200C And MOG-200PRC
Multiple Operator Resistance Grids (MOG)
For SMAW And GTAW Operating From CV/DC Welding Power Source
Output Of Grid: 195 Amperes, 100% Duty Cycle
Overload Protection
Grids Available With Case (C Models) Or With Polarity Reversing
(PRC Models)
Grid Option: 2-1/2 Ampere Switch
For Options And Accessories See Rear Cover
1994 MILLER Electric Mfg. Co.
OM-805
May 1994
Give this manual to the operator.
For help, call your distributor
or: MILLER Electric Mfg. Co., P.O. Box 1079,
Appleton, WI 54912
079 869D
414-734-9821
PRINTED IN USA

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Summary of Contents for Miller Electric MOG-200C

  • Page 1 Have only trained and qualified persons For help, call your distributor install, operate, or service this unit. Call your distributor if you do not understand or: MILLER Electric Mfg. Co., P.O. Box 1079, the directions. Appleton, WI 54912 414-734-9821 1994 MILLER Electric Mfg. Co.
  • Page 2 Welding Process Manuals such as SMAW, GTAW, GMAW, and GMAW-P. 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.
  • Page 3 ARC WELDING SAFETY PRECAUTIONS WARNING ARC WELDING can be hazardous. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACEMAKER WEARERS KEEP AWAY UNTIL CONSULTING YOUR DOCTOR. In welding, as in most jobs, exposure to certain hazards occurs. Welding is safe when precautions are taken. The safety information given below is only a summary of the more complete safety information that will be found in the Safety Standards listed on the next page.

  • Page 4: Principal Safety Standards

    WELDING can cause fire or explosion. 6. Be aware that welding on a ceiling, floor, bulkhead, or partition can cause fire on the hidden side. Welding on closed containers, such as tanks, drums, or pipes, can cause them to blow up. Sparks can fly off 7.

  • Page 5: Table Of Contents

    EMF INFORMATION Considerations About Welding And The Effects Of Low Frequency Electric And NOTE Magnetic Fields The following is a quotation from the General Conclusions Section of To reduce magnetic fields in the workplace, use the following procedures: the U.S. Congress, Office of Technology Assessment, Biological Effects of Power Frequency Electric &...

  • Page 7: Section 3 - Installation

    SECTION 1 – SAFETY INFORMATION mod1.1 2/93 Read all safety messages throughout this manual. Obey all safety messages to avoid injury. Learn the meaning of WARNING and CAUTION. Safety Alert Symbol Signal Word WARNING means possible death or serious injury can happen. WARNING CAUTION CAUTION means possible minor...

  • Page 8: Selecting A Location And Moving Resistance Grid Or Multi-Grid Rack

    This view illustrates how system Common Work Connection components are related. Welding Power Source Line Disconnect Device Distribution Panel Grid + ( ) DCEP DCEN S-0835 Figure 3-1. Typical Component Relationships 3-2. Selecting A Location And Moving Resistance Grid Or Multi-Grid Rack WARNING ELECTRIC SHOCK can kill.

  • Page 9: Preparing And Connecting Weld Input/Output Cables

    3-3. Preparing And Connecting Weld Input/Output Cables WARNING ELECTRIC SHOCK can kill. Do not touch live electrical parts. Turn Off welding power source, and disconnect input power before making any weld output connections. swarn12.1 2/93 A. Weld Input/Output Cables Weld Input Cable Work Cable Weld Output Cable If necessary, use Table 3-1 to se-...
  • Page 10 B. Camlok Connectors Weld Input Cable Strip insulation as shown. Copper Strip (Two Included) Connector Body Wrap strip around bare weld cable (use two on small diameter cable), and insert into connector body. Setscrew 1 in Tighten setscrew against copper (26 mm) strip.

  • Page 11: Section 4 - Operation

    Table 3-1. Weld Cable Size* Total Cable (Copper) Length In Weld Circuit Not Exceeding 150 ft 200 ft 250 ft 300 ft 350 ft 400 ft 100 ft (30 m) Or Less (45 m) (60 m) (70 m) (90 m) (105 m) (120 m) Welding...
  • Page 12 Wear the following while welding: Dry, Insulating Gloves Safety Glasses With Side Shields Welding Helmet With Correct Shade Of Filter (See ANSI Z49.1) sb3.1 1/94 Figure 4-2. Safety Equipment Work Clamp Connect work clamp to a clean, Tools Needed: paint-free location on workpiece, as close to weld area as possible.
  • Page 13 CAUTION ARCING can damage switch. Do not change position of any Amperage control or switch while welding or under load. Arcing inside switch can damage contacts, causing switch to fail. warn5.1* 2/93 Coarse Amperage Control Use control to select coarse weld amperage output.

  • Page 14: Section 5 - Maintenance & Troubleshooting

    SECTION 5 – MAINTENANCE & TROUBLESHOOTING WARNING ELECTRIC SHOCK can kill. HOT PARTS can cause severe burns. Allow cooling period before maintaining or servicing. Do not touch live electrical parts. Turn Off welding power source, and disconnect input power before inspecting, maintaining, or servicing.

  • Page 15: Overload Protection

    5-2. Overload Protection READ SAFETY BLOCKS at start of WARNING Section 5 before proceeding. Fuse link F1 protects the grid from overload damage. If weld output stops, check fuse link as follows: Turn Off welding power source and disconnect input power. Fuse Link F1 (See Parts List For Rating) Check and replace fuse link, if...

  • Page 16: Section 6 - Electrical Diagrams

    SECTION 6 – ELECTRICAL DIAGRAMS SA-162 468 Figure 6-1. Circuit Diagram For Models Without Polarity Switch SA-047 615-C Figure 6-2. Circuit Diagram For Models With Polarity Switch OM-805 Page 10...
  • Page 17 NOTES OM-805 Page 11...
  • Page 18 19 20 21 22 15 16 SD-080 149-D Figure 7-1. Complete Assembly (MOG-200PRC Model Illustrated)
  • Page 19 Quantity Model Item Dia. Part MOG- MOG- Description Mkgs. 200C 200PRC Figure 7-1. Complete Assembly ....059 834 RESISTOR ASSEMBLY, current (consisting of) ... . .
  • Page 20 ..*Recommended Spare Parts. +When ordering a component originally displaying a precautionary label, the label should also be ordered. Optional equipment for MOG-200C BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS. OM-805 Page 14...
  • Page 21 Notes OM-805 Page 15...
  • Page 22 Notes OM-805 Page 16...
  • Page 23 Call LIMITED WARRANTY – Subject to the terms and conditions APT, ZIPCUT & PLAZCUT Model Plasma Cutting below, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants Torches 1-800-4-A-MILLER to its original retail purchaser that new Miller equipment sold...
  • Page 24 FAX: 44 (0) 1204-598066 www.MillerWelds.com Contact the Delivering Carrier for: File a claim for loss or damage during shipment. For assistance in filing or settling claims, contact your distributor and/or equipment manufacturer’s Transportation Department. PRINTED IN USA 2000 Miller Electric Mfg. Co. 6/00...

This manual is also suitable for:

Mog-200prc

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