Related Manuals for Miller STR 400 CE
Summary of Contents for Miller STR 400 CE
- Page 1 OM-271 435A 2015−02 Processes Stick (SMAW) Welding TIG (GTAW) Welding Description Arc Welding Power Source STR 400 www.MillerWelds.com...
- Page 2 From Miller to You Thank you and congratulations on choosing Miller. Now you can get the job done and get it done right. We know you don’t have time to do it any other way. That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality.
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Page 3: Table Of Contents
TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING ........1-1. -
Page 4: Declaration Of Conformity
DECLARATION OF CONFORMITY for European Community (CE marked) products. ITW Welding Italy S.r.l Via Privata Iseo 6/E, 20098 San Giuliano M.se, (MI) Italy declares that the prod uct(s) identified in this declaration conform to the essential requirements and provisions of the stat ed Council Directive(s) and Standard(s). -
Page 5: Section 1 − Safety Precautions - Read Before Using
SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som 2013−09 Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if Indicates special instructions. - Page 6 D Remove stick electrode from holder or cut off welding wire at FUMES AND GASES can be hazardous. contact tip when not in use. D Wear body protection made from durable, flame−resistant material Welding produces fumes and gases. Breathing (leather, heavy cotton, wool). Body protection includes oil-free these fumes and gases can be hazardous to your clothing such as leather gloves, heavy shirt, cuffless trousers, high health.
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Page 7: Additional Symbols For Installation, Operation, And Maintenance
1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. MOVING PARTS can injure. D Do not install or place unit on, over, or near D Keep away from moving parts such as fans. combustible surfaces. D Keep all doors, panels, covers, and guards D Do not install unit near flammables. -
Page 8: California Proposition 65 Warnings
1-4. California Proposition 65 Warnings Welding or cutting equipment produces fumes or gases This product contains chemicals, including lead, known to which contain chemicals known to the State of California to the state of California to cause cancer, birth defects, or other cause birth defects and, in some cases, cancer. -
Page 9: Section 2 − Definitions
SECTION 2 − DEFINITIONS 2-1. Additional Safety Symbols And Definitions Some symbols are found only on CE products. Warning! Watch Out! There are possible hazards as shown by the symbols. Safe1 2012−05 Wear dry insulating gloves. Do not touch electrode with bare hand. Do not wear wet or damaged gloves. Safe2 2012−05 Protect yourself from electric shock by insulating yourself from work and ground. - Page 10 Become trained and read the instructions and labels before working on machine. Safe35 2012−05 Do not weld on drums or any closed containers. Safe16 2012−05 Do not remove or paint over (cover) the label. Safe20 2012−05 Do not discard product (where applicable) with general waste. Reuse or recycle Waste Electrical and Electronic Equipment (WEEE) by disposing at a designated collection facility.
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Page 11: Symbols And Definitions
2-2. Symbols And Definitions Some symbols are found only on CE products. Amperage Input Line Connection Negative Weld Remote Scratch Start TIG Output Terminal Positive Weld Constant Current Adjust Output Terminal (CC) Three Phase Protective Earth Duty Cycle Transformer (Ground) Rectifier Rated Supply Output... -
Page 12: Section 3 − Specifications
SECTION 3 − SPECIFICATIONS 3-1. Serial Number And Rating Label Location The serial number and rating information for this product is located on the back . Use rating label to determine input power requirements and/or rated output. For future reference, write serial number in space provided on back cover of this manual. 3-2. -
Page 13: Duty Cycle And Overheating
3-4. Duty Cycle and Overheating Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating. If unit overheats, thermostat(s) opens, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle before welding. -
Page 14: Volt-Ampere Curves
3-5. Volt-Ampere Curves The volt-ampere curves show the normal minimum and maximum voltage and amperage output capa- bilities of the unit. STR 400 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 DC Amperes SECTION 4 −... -
Page 15: Tipping
4-2. Tipping Do not move or operate unit where it could tip. 956142993_5-A Notes OM-271 435 Page 11... -
Page 16: Weld Output Terminals And Selecting Cable Sizes
4-3. Weld Output Terminals and Selecting Cable Sizes* NOTICE − The Total Cable Length in Weld Circuit (see table below) is the combined length of both weld cables. For example, if the power source is 30 m (100 ft) from the workpiece, the total cable length in the weld circuit is 60 m (2 cables x 30 m). Use the 60 m (200 ft) column to determine cable size. -
Page 17: Remote Receptacle Information
4-5. Remote Receptacle Information This unit automatically uses the remote control if connected to the remote receptacle. Socket* Socket Information REMOTE Contact closure to B completes 24 volts AC con- tactor control circuit. Contact closure to A completes 24 volts AC con- tactor control circuit. -
Page 18: Typical Connections For Tig (Gtaw) Welding
4-7. Typical Connections For TIG (GTAW) Welding Remote output is always On in TIG mode. See Section 5-3 for scratch start TIG information. Hot Start function (for Stick weld- ing) is disabled in TIG mode. Remote Hand Control Remote Foot Control Negative (−) Weld Terminal Positive (+) Weld Terminal Remote 14 Receptacle... -
Page 19: Electrical Service Guide
4-8. Electrical Service Guide Failure to follow these fuse and circuit breaker recommendations could create an electric shock or fire hazard. These recommendations are for a dedicated circuit that applies to the rated output and duty cycle of the welding power source. In dedicated circuit installations, the National Electrical Code (NEC) allows the receptacle or conductor rating to be less than the rating of the circuit protection device. -
Page 20: Connecting 3-Phase Input Power
4-9. Connecting 3-Phase Input Power = GND/PE Earth Ground Tools Needed: input2 2012−05 − 956142993_1-A OM-271 435 Page 16... - Page 21 4-9. Connecting 3-Phase Input Power (Continued) See rating label on unit and check input volt- Connect green or green/yellow grounding Installation must meet all National and age available at site. conductor to disconnect device grounding ter- Local Codes − have only qualified per- minal first.
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Page 22: Section 5 − Operation
SECTION 5 − OPERATION 5-1. Controls Negative (−) Weld Terminal Power On-Off Switch Stick (SMAW) Welding Indicator Light Process Selection Switch Remote output is always On in TIG mode. Hot Start function (for Stick welding) is disabled in TIG mode. (GTAW) Welding Indicator Light... -
Page 23: Stick Start Procedure − Scratch Start Technique
5-2. Stick Start Procedure − Scratch Start Technique With Stick selected, start arc as follows: Electrode Workpiece Drag electrode across workpiece like striking a match; lift electrode slightly after touching work. If arc goes out electrode was lifted to high. If electrode sticks to workpiece, use a quick twist to free it. -
Page 24: Section 6 − Maintenance And Troubleshooting
SECTION 6 − MAINTENANCE AND TROUBLESHOOTING 6-1. Routine Maintenance Disconnect power before maintaining. n = Check Z = Change ~ = Clean l = Replace * To be done by Factory Authorized Service Agent Every Months l Damaged Or l Cracked Weld cables ~n Weld Connections Unreadable Labels Every... - Page 25 Trouble Remedy Erratic arc with excessive spatter. Use dry, properly stored electrodes. Shorten arc length. Reduce amperage setting. Electrode freezing to work. Increase amperage setting. Increase arc length. Use dry, properly stored electrodes. Low weld output with no control. Check position of Amperage Control (see Section 5-1). Limited output and low open-circuit Check incoming power for correct voltage.
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Page 26: Section 7 − Electrical Diagrams
SECTION 7 − ELECTRICAL DIAGRAMS Figure 7-1. Circuit Diagram For STR 400 OM-271 435 Page 22... - Page 27 956142994-A OM-271 435 Page 23...
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Page 28: Section 8 − Parts List
SECTION 8 − PARTS LIST Hardware is common and not available unless listed. 956142993_2-A Figure 8-1. Case And Running Gear Dia. Item Part Description Mkgs. Figure 8-1. Case And Running Gear Quantity ... . . +156122085 Panel, RH . - Page 29 Hardware is common and not available unless listed. 956142993_3-A Figure 8-2. Main Assembly Item Dia. Part Description Mkgs. Figure 8-2. Main Assembly Quantity ....656089037 Clamp, Cable D.16−23 .
- Page 30 Item Dia. Part Description Mkgs. Figure 8-2. Main Assembly (continued) Quantity ....156118092 Front Panel + c/w Box ..........
- Page 31 Effective January 1, 2015 (Equipment with a serial number preface of MF or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other guarantees or warranties expressed or implied. LIMITED WARRANTY − Subject to the terms and conditions 90 Days —...
- Page 32 File a claim for loss or damage during Phone: 39 (0) 2982901 Fax: 39 (0) 298290-203 shipment. email: miller@itw−welding.it For assistance in filing or settling claims, contact your distributor and/or equipment manufacturer’s Transportation Department. © ORIGINAL INSTRUCTIONS − PRINTED IN USA 2015 Miller Electric Mfg. Co. 2015−01...