
STA SERIES AC CONTROLS
990-351
ix
Page
Chapter 4. Operating Instructions
Section I: Introduction ........................................................................................................................... 4-1
Overview
.......................................................................................................................................... 4-1
General Operator Safety .................................................................................................................. 4-1
Section II: Preparing for Operation ........................................................................................................ 4-2
Turning the Equipment ON ............................................................................................................. 4-2
Pre-Operational
Setup
...................................................................................................................... 4-3
Section III: Setup Messages .................................................................................................................... 4-4
Section IV. Operation ............................................................................................................................ 4-6
Spot
Welds
....................................................................................................................................... 4-7
Continuous
Seam
Weld
................................................................................................................... 4-8
Cascading (Multiple SCRs) ............................................................................................................. 4-9
Section V: Operational Messages ........................................................................................................ 4-11
Major Run-Time Error Messages .................................................................................................. 4-11
Minor Run-Time Error Messages .................................................................................................. 4-13
Section VI: Shutdown .......................................................................................................................... 4-15
Emergency Shutdown .................................................................................................................... 4-15
Normal Shutdown .......................................................................................................................... 4-15
Chapter 5. Maintenance
Section I: Precautions ............................................................................................................................ 5-1
Section II: General Information ............................................................................................................. 5-1
General Maintenance Procedures .................................................................................................... 5-1
Cooling Maintenance – Water Draining .......................................................................................... 5-1
Fuse
Replacement
............................................................................................................................ 5-2
Principles of Operation .................................................................................................................... 5-2
Wiring
Diagram
............................................................................................................................... 5-3
Section III. Standard Components Replacement ................................................................................... 5-5
AC Timer Main Board ..................................................................................................................... 5-5
Power Transformer T1 ..................................................................................................................... 5-7
Power Transformer T2 ..................................................................................................................... 5-7
Valve Transformer, T3 .................................................................................................................... 5-7
Surge Resistors ............................................................................................................................... 5-7
Snubber
............................................................................................................................................ 5-8
SCR Drive Board ............................................................................................................................. 5-8
Control Panel Assembly .................................................................................................................. 5-9
Section IV. Optional Components Replacement ................................................................................. 5-10
Optional Primary Current Sensor .................................................................................................. 5-10
Optional Secondary Current Sensor Connector ............................................................................. 5-10
Optional Key Lock ........................................................................................................................ 5-11
Optional SCR Assembly, 600,1200, 1800, and 2200 Amp ........................................................... 5-11
Содержание Miyachi Unitek STA-100A
Страница 1: ...990 351 Rev H AC WELDER STA SERIES OPERATION MANUAL...
Страница 18: ...CHAPTER 1 DESCRIPTION STA SERIES AC CONTROLS 1 4 990 351 STA 100A Series Major Components Typical...
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Страница 68: ...CHAPTER 5 MAINTENANCE STA SERIES AC CONTROLS 5 4 990 351...
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Страница 82: ...APPENDIX A TECHNICAL SPECIFICATIONS STA SERIES AC CONTROLS A 4 990 351 STA 200A AC Control Control...
Страница 86: ...APPENDIX B ELECTRICAL AND DATA CONNECTIONS STA SERIES AC CONTROLS B 4 990 351 Input Output Control Signals...
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Страница 96: ...APPENDIX D SYSTEM TIMING STA SERIES AC CONTROLS D 2 990 351 Continuous Seam Weld...
Страница 98: ...APPENDIX D SYSTEM TIMING STA SERIES AC CONTROLS D 4 990 351 Spot Welding...
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Страница 154: ...AMADA MIYACHI AMERICA INC 1820 South Myrtle Ave Monrovia CA 91016 U S A TEL 1 626 303 5676 FAX 1 626 358 8048...